diff --git a/library/SubcircuitLibrary/CD4042B/CD4042B-cache.lib b/library/SubcircuitLibrary/CD4042B/CD4042B-cache.lib
new file mode 100644
index 000000000..4d2471e33
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CD4042B-cache.lib
@@ -0,0 +1,100 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# Quad_D_FF
+#
+DEF Quad_D_FF X 0 40 Y Y 1 F N
+F0 "X" 0 -100 60 H V C CNN
+F1 "Quad_D_FF" 0 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -450 450 450 -450 0 1 0 N
+X D1 1 -650 250 200 R 50 50 1 1 I
+X En 2 -650 150 200 R 50 50 1 1 I
+X D2 3 -650 0 200 R 50 50 1 1 I
+X D3 4 -650 -150 200 R 50 50 1 1 I
+X D4 5 -650 -250 200 R 50 50 1 1 I
+X Gnd 6 -650 -350 200 R 50 50 1 1 I
+X Vdd 7 -650 350 200 R 50 50 1 1 I
+X out1 8 650 400 200 L 50 50 1 1 O
+X out2 9 650 300 200 L 50 50 1 1 O
+X out3 10 650 200 200 L 50 50 1 1 O
+X out4 11 650 100 200 L 50 50 1 1 O
+X out1Bar 12 650 -100 200 L 50 50 1 1 O
+X out2Bar 13 650 -200 200 L 50 50 1 1 O
+X out3Bar 14 650 -300 200 L 50 50 1 1 O
+X out4Bar 15 650 -400 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# TG_D_Latch_ctrl
+#
+DEF TG_D_Latch_ctrl X 0 40 Y Y 1 F N
+F0 "X" 0 -100 60 H V C CNN
+F1 "TG_D_Latch_ctrl" -50 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -400 300 700 -350 0 1 0 N
+X clock 1 -600 200 200 R 50 50 1 1 I
+X polarity 2 -600 -250 200 R 50 50 1 1 I
+X Vdd 3 100 500 200 D 50 50 1 1 I
+X Gnd 4 100 -550 200 U 50 50 1 1 I
+X clock_out 5 900 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4042B/CD4042B.bak b/library/SubcircuitLibrary/CD4042B/CD4042B.bak
new file mode 100644
index 000000000..aee1a4a64
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CD4042B.bak
@@ -0,0 +1,310 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:CD4042B-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode1
+U 1 1 6858406E
+P 8500 2650
+F 0 "scmode1" H 8500 2800 98  0000 C CNB
+F 1 "SKY130mode" H 8500 2550 118 0000 C CNB
+F 2 "" H 8500 2800 60  0001 C CNN
+F 3 "" H 8500 2800 60  0001 C CNN
+	1    8500 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L Quad_D_FF X2
+U 1 1 685A4DC5
+P 5850 3150
+F 0 "X2" H 5850 3050 60  0000 C CNN
+F 1 "Quad_D_FF" H 5850 3150 60  0000 C CNN
+F 2 "" H 5850 3150 60  0001 C CNN
+F 3 "" H 5850 3150 60  0001 C CNN
+	1    5850 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L TG_D_Latch_ctrl X1
+U 1 1 685A4EBA
+P 3800 3000
+F 0 "X1" H 3800 2900 60  0000 C CNN
+F 1 "TG_D_Latch_ctrl" H 3750 3000 60  0000 C CNN
+F 2 "" H 3800 3000 60  0001 C CNN
+F 3 "" H 3800 3000 60  0001 C CNN
+	1    3800 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685A4FC2
+P 4700 2900
+F 0 "U1" H 4750 3000 30  0000 C CNN
+F 1 "PORT" H 4700 2900 30  0000 C CNN
+F 2 "" H 4700 2900 60  0000 C CNN
+F 3 "" H 4700 2900 60  0000 C CNN
+	3    4700 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685A5045
+P 4700 3150
+F 0 "U1" H 4750 3250 30  0000 C CNN
+F 1 "PORT" H 4700 3150 30  0000 C CNN
+F 2 "" H 4700 3150 60  0000 C CNN
+F 3 "" H 4700 3150 60  0000 C CNN
+	4    4700 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685A5126
+P 4700 3300
+F 0 "U1" H 4750 3400 30  0000 C CNN
+F 1 "PORT" H 4700 3300 30  0000 C CNN
+F 2 "" H 4700 3300 60  0000 C CNN
+F 3 "" H 4700 3300 60  0000 C CNN
+	5    4700 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 685A52B7
+P 4700 3400
+F 0 "U1" H 4750 3500 30  0000 C CNN
+F 1 "PORT" H 4700 3400 30  0000 C CNN
+F 2 "" H 4700 3400 60  0000 C CNN
+F 3 "" H 4700 3400 60  0000 C CNN
+	6    4700 3400
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 685A5304
+P 2850 2800
+F 0 "U1" H 2900 2900 30  0000 C CNN
+F 1 "PORT" H 2850 2800 30  0000 C CNN
+F 2 "" H 2850 2800 60  0000 C CNN
+F 3 "" H 2850 2800 60  0000 C CNN
+	1    2850 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685A5355
+P 2850 3250
+F 0 "U1" H 2900 3350 30  0000 C CNN
+F 1 "PORT" H 2850 3250 30  0000 C CNN
+F 2 "" H 2850 3250 60  0000 C CNN
+F 3 "" H 2850 3250 60  0000 C CNN
+	2    2850 3250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 685A53C8
+P 6850 2750
+F 0 "U1" H 6900 2850 30  0000 C CNN
+F 1 "PORT" H 6850 2750 30  0000 C CNN
+F 2 "" H 6850 2750 60  0000 C CNN
+F 3 "" H 6850 2750 60  0000 C CNN
+	9    6850 2750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 685A5409
+P 6850 2850
+F 0 "U1" H 6900 2950 30  0000 C CNN
+F 1 "PORT" H 6850 2850 30  0000 C CNN
+F 2 "" H 6850 2850 60  0000 C CNN
+F 3 "" H 6850 2850 60  0000 C CNN
+	10   6850 2850
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 11 1 685A5480
+P 6850 2950
+F 0 "U1" H 6900 3050 30  0000 C CNN
+F 1 "PORT" H 6850 2950 30  0000 C CNN
+F 2 "" H 6850 2950 60  0000 C CNN
+F 3 "" H 6850 2950 60  0000 C CNN
+	11   6850 2950
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 12 1 685A54E5
+P 6850 3050
+F 0 "U1" H 6900 3150 30  0000 C CNN
+F 1 "PORT" H 6850 3050 30  0000 C CNN
+F 2 "" H 6850 3050 60  0000 C CNN
+F 3 "" H 6850 3050 60  0000 C CNN
+	12   6850 3050
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 13 1 685A5546
+P 6850 3250
+F 0 "U1" H 6900 3350 30  0000 C CNN
+F 1 "PORT" H 6850 3250 30  0000 C CNN
+F 2 "" H 6850 3250 60  0000 C CNN
+F 3 "" H 6850 3250 60  0000 C CNN
+	13   6850 3250
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 14 1 685A55BB
+P 6850 3350
+F 0 "U1" H 6900 3450 30  0000 C CNN
+F 1 "PORT" H 6850 3350 30  0000 C CNN
+F 2 "" H 6850 3350 60  0000 C CNN
+F 3 "" H 6850 3350 60  0000 C CNN
+	14   6850 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 15 1 685A5620
+P 6850 3450
+F 0 "U1" H 6900 3550 30  0000 C CNN
+F 1 "PORT" H 6850 3450 30  0000 C CNN
+F 2 "" H 6850 3450 60  0000 C CNN
+F 3 "" H 6850 3450 60  0000 C CNN
+	15   6850 3450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 16 1 685A569F
+P 6850 3550
+F 0 "U1" H 6900 3650 30  0000 C CNN
+F 1 "PORT" H 6850 3550 30  0000 C CNN
+F 2 "" H 6850 3550 60  0000 C CNN
+F 3 "" H 6850 3550 60  0000 C CNN
+	16   6850 3550
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 685A5732
+P 5500 2650
+F 0 "U1" H 5550 2750 30  0000 C CNN
+F 1 "PORT" H 5500 2650 30  0000 C CNN
+F 2 "" H 5500 2650 60  0000 C CNN
+F 3 "" H 5500 2650 60  0000 C CNN
+	7    5500 2650
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 8 1 685A57C3
+P 5500 3650
+F 0 "U1" H 5550 3750 30  0000 C CNN
+F 1 "PORT" H 5500 3650 30  0000 C CNN
+F 2 "" H 5500 3650 60  0000 C CNN
+F 3 "" H 5500 3650 60  0000 C CNN
+	8    5500 3650
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	3900 2500 5200 2500
+Wire Wire Line
+	5200 2500 5200 2800
+Wire Wire Line
+	5250 2650 5200 2650
+Connection ~ 5200 2650
+Wire Wire Line
+	3900 3550 5250 3550
+Wire Wire Line
+	5200 3550 5200 3500
+Wire Wire Line
+	5250 3550 5250 3650
+Connection ~ 5200 3550
+Wire Wire Line
+	3100 3250 3200 3250
+Wire Wire Line
+	3100 2800 3200 2800
+Wire Wire Line
+	4700 3000 5200 3000
+Wire Wire Line
+	4950 2900 5200 2900
+Wire Wire Line
+	4950 3150 5200 3150
+Wire Wire Line
+	4950 3300 5200 3300
+Wire Wire Line
+	4950 3400 5200 3400
+Wire Wire Line
+	6500 2750 6600 2750
+Wire Wire Line
+	6500 2850 6600 2850
+Wire Wire Line
+	6500 2950 6600 2950
+Wire Wire Line
+	6500 3050 6600 3050
+Wire Wire Line
+	6500 3250 6600 3250
+Wire Wire Line
+	6500 3350 6600 3350
+Wire Wire Line
+	6500 3450 6600 3450
+Wire Wire Line
+	6500 3550 6600 3550
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4042B/CD4042B.cir b/library/SubcircuitLibrary/CD4042B/CD4042B.cir
new file mode 100644
index 000000000..bba6d2c0e
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CD4042B.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CD4042B/CD4042B.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Tue Jun 24 12:19:45 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+scmode1  SKY130mode		
+X2  Net-_U1-Pad3_ Net-_X1-Pad5_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad8_ Net-_U1-Pad7_ Net-_U1-Pad9_ Net-_U1-Pad10_ Net-_U1-Pad11_ Net-_U1-Pad12_ Net-_U1-Pad13_ Net-_U1-Pad14_ Net-_U1-Pad15_ Net-_U1-Pad16_ Quad_D_FF		
+X1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_X1-Pad5_ TG_D_Latch_ctrl		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad9_ Net-_U1-Pad10_ Net-_U1-Pad11_ Net-_U1-Pad12_ Net-_U1-Pad13_ Net-_U1-Pad14_ Net-_U1-Pad15_ Net-_U1-Pad16_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4042B/CD4042B.cir.out b/library/SubcircuitLibrary/CD4042B/CD4042B.cir.out
new file mode 100644
index 000000000..bfffe2325
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CD4042B.cir.out
@@ -0,0 +1,19 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cd4042b/cd4042b.cir
+
+.include Quad_D_FF.sub
+.include TG_D_Latch_ctrl.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+* s c m o d e
+x2 net-_u1-pad3_ net-_x1-pad5_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad8_ net-_u1-pad7_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ Quad_D_FF
+x1 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad7_ net-_u1-pad8_ net-_x1-pad5_ TG_D_Latch_ctrl
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4042B/CD4042B.pro b/library/SubcircuitLibrary/CD4042B/CD4042B.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CD4042B.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4042B/CD4042B.sch b/library/SubcircuitLibrary/CD4042B/CD4042B.sch
new file mode 100644
index 000000000..5caabd205
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CD4042B.sch
@@ -0,0 +1,310 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:CD4042B-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode1
+U 1 1 6858406E
+P 4550 4100
+F 0 "scmode1" H 4550 4250 98  0000 C CNB
+F 1 "SKY130mode" H 4550 4000 118 0000 C CNB
+F 2 "" H 4550 4250 60  0001 C CNN
+F 3 "" H 4550 4250 60  0001 C CNN
+	1    4550 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L Quad_D_FF X2
+U 1 1 685A4DC5
+P 5850 3150
+F 0 "X2" H 5850 3050 60  0000 C CNN
+F 1 "Quad_D_FF" H 5850 3150 60  0000 C CNN
+F 2 "" H 5850 3150 60  0001 C CNN
+F 3 "" H 5850 3150 60  0001 C CNN
+	1    5850 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L TG_D_Latch_ctrl X1
+U 1 1 685A4EBA
+P 3800 3000
+F 0 "X1" H 3800 2900 60  0000 C CNN
+F 1 "TG_D_Latch_ctrl" H 3750 3000 60  0000 C CNN
+F 2 "" H 3800 3000 60  0001 C CNN
+F 3 "" H 3800 3000 60  0001 C CNN
+	1    3800 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685A4FC2
+P 4700 2900
+F 0 "U1" H 4750 3000 30  0000 C CNN
+F 1 "PORT" H 4700 2900 30  0000 C CNN
+F 2 "" H 4700 2900 60  0000 C CNN
+F 3 "" H 4700 2900 60  0000 C CNN
+	3    4700 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685A5045
+P 4700 3150
+F 0 "U1" H 4750 3250 30  0000 C CNN
+F 1 "PORT" H 4700 3150 30  0000 C CNN
+F 2 "" H 4700 3150 60  0000 C CNN
+F 3 "" H 4700 3150 60  0000 C CNN
+	4    4700 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685A5126
+P 4700 3300
+F 0 "U1" H 4750 3400 30  0000 C CNN
+F 1 "PORT" H 4700 3300 30  0000 C CNN
+F 2 "" H 4700 3300 60  0000 C CNN
+F 3 "" H 4700 3300 60  0000 C CNN
+	5    4700 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 685A52B7
+P 4700 3400
+F 0 "U1" H 4750 3500 30  0000 C CNN
+F 1 "PORT" H 4700 3400 30  0000 C CNN
+F 2 "" H 4700 3400 60  0000 C CNN
+F 3 "" H 4700 3400 60  0000 C CNN
+	6    4700 3400
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 685A5304
+P 2850 2800
+F 0 "U1" H 2900 2900 30  0000 C CNN
+F 1 "PORT" H 2850 2800 30  0000 C CNN
+F 2 "" H 2850 2800 60  0000 C CNN
+F 3 "" H 2850 2800 60  0000 C CNN
+	1    2850 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685A5355
+P 2850 3250
+F 0 "U1" H 2900 3350 30  0000 C CNN
+F 1 "PORT" H 2850 3250 30  0000 C CNN
+F 2 "" H 2850 3250 60  0000 C CNN
+F 3 "" H 2850 3250 60  0000 C CNN
+	2    2850 3250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 685A53C8
+P 6850 2750
+F 0 "U1" H 6900 2850 30  0000 C CNN
+F 1 "PORT" H 6850 2750 30  0000 C CNN
+F 2 "" H 6850 2750 60  0000 C CNN
+F 3 "" H 6850 2750 60  0000 C CNN
+	9    6850 2750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 685A5409
+P 6850 2850
+F 0 "U1" H 6900 2950 30  0000 C CNN
+F 1 "PORT" H 6850 2850 30  0000 C CNN
+F 2 "" H 6850 2850 60  0000 C CNN
+F 3 "" H 6850 2850 60  0000 C CNN
+	10   6850 2850
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 11 1 685A5480
+P 6850 2950
+F 0 "U1" H 6900 3050 30  0000 C CNN
+F 1 "PORT" H 6850 2950 30  0000 C CNN
+F 2 "" H 6850 2950 60  0000 C CNN
+F 3 "" H 6850 2950 60  0000 C CNN
+	11   6850 2950
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 12 1 685A54E5
+P 6850 3050
+F 0 "U1" H 6900 3150 30  0000 C CNN
+F 1 "PORT" H 6850 3050 30  0000 C CNN
+F 2 "" H 6850 3050 60  0000 C CNN
+F 3 "" H 6850 3050 60  0000 C CNN
+	12   6850 3050
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 13 1 685A5546
+P 6850 3250
+F 0 "U1" H 6900 3350 30  0000 C CNN
+F 1 "PORT" H 6850 3250 30  0000 C CNN
+F 2 "" H 6850 3250 60  0000 C CNN
+F 3 "" H 6850 3250 60  0000 C CNN
+	13   6850 3250
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 14 1 685A55BB
+P 6850 3350
+F 0 "U1" H 6900 3450 30  0000 C CNN
+F 1 "PORT" H 6850 3350 30  0000 C CNN
+F 2 "" H 6850 3350 60  0000 C CNN
+F 3 "" H 6850 3350 60  0000 C CNN
+	14   6850 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 15 1 685A5620
+P 6850 3450
+F 0 "U1" H 6900 3550 30  0000 C CNN
+F 1 "PORT" H 6850 3450 30  0000 C CNN
+F 2 "" H 6850 3450 60  0000 C CNN
+F 3 "" H 6850 3450 60  0000 C CNN
+	15   6850 3450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 16 1 685A569F
+P 6850 3550
+F 0 "U1" H 6900 3650 30  0000 C CNN
+F 1 "PORT" H 6850 3550 30  0000 C CNN
+F 2 "" H 6850 3550 60  0000 C CNN
+F 3 "" H 6850 3550 60  0000 C CNN
+	16   6850 3550
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 685A5732
+P 5500 2650
+F 0 "U1" H 5550 2750 30  0000 C CNN
+F 1 "PORT" H 5500 2650 30  0000 C CNN
+F 2 "" H 5500 2650 60  0000 C CNN
+F 3 "" H 5500 2650 60  0000 C CNN
+	7    5500 2650
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 8 1 685A57C3
+P 5500 3650
+F 0 "U1" H 5550 3750 30  0000 C CNN
+F 1 "PORT" H 5500 3650 30  0000 C CNN
+F 2 "" H 5500 3650 60  0000 C CNN
+F 3 "" H 5500 3650 60  0000 C CNN
+	8    5500 3650
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	3900 2500 5200 2500
+Wire Wire Line
+	5200 2500 5200 2800
+Wire Wire Line
+	5250 2650 5200 2650
+Connection ~ 5200 2650
+Wire Wire Line
+	3900 3550 5250 3550
+Wire Wire Line
+	5200 3550 5200 3500
+Wire Wire Line
+	5250 3550 5250 3650
+Connection ~ 5200 3550
+Wire Wire Line
+	3100 3250 3200 3250
+Wire Wire Line
+	3100 2800 3200 2800
+Wire Wire Line
+	4700 3000 5200 3000
+Wire Wire Line
+	4950 2900 5200 2900
+Wire Wire Line
+	4950 3150 5200 3150
+Wire Wire Line
+	4950 3300 5200 3300
+Wire Wire Line
+	4950 3400 5200 3400
+Wire Wire Line
+	6500 2750 6600 2750
+Wire Wire Line
+	6500 2850 6600 2850
+Wire Wire Line
+	6500 2950 6600 2950
+Wire Wire Line
+	6500 3050 6600 3050
+Wire Wire Line
+	6500 3250 6600 3250
+Wire Wire Line
+	6500 3350 6600 3350
+Wire Wire Line
+	6500 3450 6600 3450
+Wire Wire Line
+	6500 3550 6600 3550
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4042B/CD4042B.sub b/library/SubcircuitLibrary/CD4042B/CD4042B.sub
new file mode 100644
index 000000000..122ce9940
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CD4042B.sub
@@ -0,0 +1,13 @@
+* Subcircuit CD4042B
+.subckt CD4042B net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cd4042b/cd4042b.cir
+.include Quad_D_FF.sub
+.include TG_D_Latch_ctrl.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+* s c m o d e
+x2 net-_u1-pad3_ net-_x1-pad5_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad8_ net-_u1-pad7_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ Quad_D_FF
+x1 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad7_ net-_u1-pad8_ net-_x1-pad5_ TG_D_Latch_ctrl
+* Control Statements
+
+.ends CD4042B
diff --git a/library/SubcircuitLibrary/CD4042B/CD4042B_Previous_Values.xml b/library/SubcircuitLibrary/CD4042B/CD4042B_Previous_Values.xml
new file mode 100644
index 000000000..cb3fbc0d4
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CD4042B_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Quad_D_FF</field></x2><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/TG_D_Latch_ctrl</field></x1></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4042B/CMOS_INVTR-cache.lib b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.cir b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.cir
new file mode 100644
index 000000000..d2199ddbb
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR/CMOS_INVTR.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Fri Jun 13 08:49:20 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.cir.out b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.cir.out
new file mode 100644
index 000000000..dec1c5fa5
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_invtr/cmos_invtr.cir
+
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.pro b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.sch b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.sch
new file mode 100644
index 000000000..aa7a7ee81
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.sch
@@ -0,0 +1,161 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 684B982F
+P 5350 2950
+F 0 "SC1" H 5400 3250 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5650 3037 50  0000 R CNN
+F 2 "" H 5350 1450 50  0001 C CNN
+F 3 "" H 5350 2950 50  0001 C CNN
+	1    5350 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684B9856
+P 5350 3800
+F 0 "SC2" H 5400 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5650 3887 50  0000 R CNN
+F 2 "" H 5350 2300 50  0001 C CNN
+F 3 "" H 5350 3800 50  0001 C CNN
+	1    5350 3800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684B98AD
+P 4550 3300
+F 0 "U1" H 4600 3400 30  0000 C CNN
+F 1 "PORT" H 4550 3300 30  0000 C CNN
+F 2 "" H 4550 3300 60  0000 C CNN
+F 3 "" H 4550 3300 60  0000 C CNN
+	1    4550 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684B98D8
+P 6300 3350
+F 0 "U1" H 6350 3450 30  0000 C CNN
+F 1 "PORT" H 6300 3350 30  0000 C CNN
+F 2 "" H 6300 3350 60  0000 C CNN
+F 3 "" H 6300 3350 60  0000 C CNN
+	4    6300 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684B9935
+P 5300 4350
+F 0 "U1" H 5350 4450 30  0000 C CNN
+F 1 "PORT" H 5300 4350 30  0000 C CNN
+F 2 "" H 5300 4350 60  0000 C CNN
+F 3 "" H 5300 4350 60  0000 C CNN
+	3    5300 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684B999A
+P 5300 2350
+F 0 "U1" H 5350 2450 30  0000 C CNN
+F 1 "PORT" H 5300 2350 30  0000 C CNN
+F 2 "" H 5300 2350 60  0000 C CNN
+F 3 "" H 5300 2350 60  0000 C CNN
+	2    5300 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684B99CD
+P 7950 3000
+F 0 "scmode1" H 7950 3150 98  0000 C CNB
+F 1 "SKY130mode" H 7950 2900 118 0000 C CNB
+F 2 "" H 7950 3150 60  0001 C CNN
+F 3 "" H 7950 3150 60  0001 C CNN
+	1    7950 3000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5550 2650 5550 2350
+Wire Wire Line
+	5450 2950 5600 2950
+Wire Wire Line
+	5600 2950 5600 2550
+Wire Wire Line
+	5600 2550 5550 2550
+Connection ~ 5550 2550
+Wire Wire Line
+	5550 3250 5550 3500
+Wire Wire Line
+	6050 3350 5550 3350
+Connection ~ 5550 3350
+Wire Wire Line
+	5050 2950 5050 3800
+Wire Wire Line
+	4800 3300 5050 3300
+Connection ~ 5050 3300
+Wire Wire Line
+	5450 3800 5600 3800
+Wire Wire Line
+	5600 3800 5600 4150
+Wire Wire Line
+	5600 4150 5550 4150
+Wire Wire Line
+	5550 4100 5550 4350
+Connection ~ 5550 4150
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.sub b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.sub
new file mode 100644
index 000000000..8283bca86
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR.sub
@@ -0,0 +1,11 @@
+* Subcircuit CMOS_INVTR
+.subckt CMOS_INVTR net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_invtr/cmos_invtr.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends CMOS_INVTR
diff --git a/library/SubcircuitLibrary/CD4042B/CMOS_INVTR_Previous_Values.xml b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR_Previous_Values.xml
new file mode 100644
index 000000000..d17c4f93e
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/CMOS_INVTR_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3, l=0.15</field></sc1><sc2><field>w=1, l=0.15</field></sc2></devicemodel><subcircuit /></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4042B/D_FF-cache.lib b/library/SubcircuitLibrary/CD4042B/D_FF-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/D_FF-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4042B/D_FF.bak b/library/SubcircuitLibrary/CD4042B/D_FF.bak
new file mode 100644
index 000000000..61b02ff48
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/D_FF.bak
@@ -0,0 +1,246 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode?
+U 1 1 685A3E76
+P 9400 3200
+F 0 "scmode?" H 9400 3350 98  0000 C CNB
+F 1 "SKY130mode" H 9400 3100 118 0000 C CNB
+F 2 "" H 9400 3350 60  0001 C CNN
+F 3 "" H 9400 3350 60  0001 C CNN
+	1    9400 3200
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC?
+U 1 1 685A3EBD
+P 4000 3300
+F 0 "SC?" H 4050 3600 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4300 3387 50  0000 R CNN
+F 2 "" H 4000 1800 50  0001 C CNN
+F 3 "" H 4000 3300 50  0001 C CNN
+	1    4000 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC?
+U 1 1 685A3EFC
+P 4000 4100
+F 0 "SC?" H 4050 4400 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4187 50  0000 R CNN
+F 2 "" H 4000 2600 50  0001 C CNN
+F 3 "" H 4000 4100 50  0001 C CNN
+	1    4000 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC?
+U 1 1 685A3F47
+P 4000 4900
+F 0 "SC?" H 4050 5200 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4987 50  0000 R CNN
+F 2 "" H 4000 3400 50  0001 C CNN
+F 3 "" H 4000 4900 50  0001 C CNN
+	1    4000 4900
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC?
+U 1 1 685A3F7A
+P 4950 3700
+F 0 "SC?" H 5000 4000 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5250 3787 50  0000 R CNN
+F 2 "" H 4950 2200 50  0001 C CNN
+F 3 "" H 4950 3700 50  0001 C CNN
+	1    4950 3700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC?
+U 1 1 685A3FCF
+P 4950 4500
+F 0 "SC?" H 5000 4800 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5250 4587 50  0000 R CNN
+F 2 "" H 4950 3000 50  0001 C CNN
+F 3 "" H 4950 4500 50  0001 C CNN
+	1    4950 4500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 1 1 685A401A
+P 3250 3550
+F 0 "U?" H 3300 3650 30  0000 C CNN
+F 1 "PORT" H 3250 3550 30  0000 C CNN
+F 2 "" H 3250 3550 60  0000 C CNN
+F 3 "" H 3250 3550 60  0000 C CNN
+	1    3250 3550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 2 1 685A40FF
+P 3250 4100
+F 0 "U?" H 3300 4200 30  0000 C CNN
+F 1 "PORT" H 3250 4100 30  0000 C CNN
+F 2 "" H 3250 4100 60  0000 C CNN
+F 3 "" H 3250 4100 60  0000 C CNN
+	2    3250 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 3 1 685A4132
+P 3950 2750
+F 0 "U?" H 4000 2850 30  0000 C CNN
+F 1 "PORT" H 3950 2750 30  0000 C CNN
+F 2 "" H 3950 2750 60  0000 C CNN
+F 3 "" H 3950 2750 60  0000 C CNN
+	3    3950 2750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 4 1 685A41B1
+P 3950 5350
+F 0 "U?" H 4000 5450 30  0000 C CNN
+F 1 "PORT" H 3950 5350 30  0000 C CNN
+F 2 "" H 3950 5350 60  0000 C CNN
+F 3 "" H 3950 5350 60  0000 C CNN
+	4    3950 5350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 5 1 685A4206
+P 5700 4100
+F 0 "U?" H 5750 4200 30  0000 C CNN
+F 1 "PORT" H 5700 4100 30  0000 C CNN
+F 2 "" H 5700 4100 60  0000 C CNN
+F 3 "" H 5700 4100 60  0000 C CNN
+	5    5700 4100
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	4200 3600 4200 3800
+Wire Wire Line
+	3700 3300 3600 3300
+Wire Wire Line
+	3600 3300 3600 4900
+Wire Wire Line
+	3600 4900 3700 4900
+Wire Wire Line
+	3500 3550 3600 3550
+Connection ~ 3600 3550
+Wire Wire Line
+	3500 4100 3700 4100
+Wire Wire Line
+	4200 2750 4200 3000
+Wire Wire Line
+	4650 3700 4200 3700
+Connection ~ 4200 3700
+Wire Wire Line
+	4200 4400 4200 4600
+Wire Wire Line
+	4650 4500 4200 4500
+Connection ~ 4200 4500
+Wire Wire Line
+	5150 4000 5150 4200
+Wire Wire Line
+	5450 4100 5150 4100
+Connection ~ 5150 4100
+Wire Wire Line
+	4200 5200 4200 5350
+Wire Wire Line
+	4100 4900 4250 4900
+Wire Wire Line
+	4250 4900 4250 5250
+Wire Wire Line
+	4200 5250 5150 5250
+Connection ~ 4200 5250
+Wire Wire Line
+	5150 5250 5150 4800
+Connection ~ 4250 5250
+Wire Wire Line
+	5050 4500 5200 4500
+Wire Wire Line
+	5200 4500 5200 4850
+Wire Wire Line
+	5200 4850 5150 4850
+Connection ~ 5150 4850
+Wire Wire Line
+	4100 4100 4250 4100
+Wire Wire Line
+	4250 4100 4250 4500
+Connection ~ 4250 4500
+Wire Wire Line
+	4100 3300 4250 3300
+Wire Wire Line
+	4250 3300 4250 2950
+Wire Wire Line
+	4200 2950 5150 2950
+Connection ~ 4200 2950
+Wire Wire Line
+	5150 2950 5150 3400
+Connection ~ 4250 2950
+Wire Wire Line
+	5050 3700 5200 3700
+Wire Wire Line
+	5200 3700 5200 3350
+Wire Wire Line
+	5200 3350 5150 3350
+Connection ~ 5150 3350
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4042B/D_FF.cir b/library/SubcircuitLibrary/CD4042B/D_FF.cir
new file mode 100644
index 000000000..63d882276
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/D_FF.cir
@@ -0,0 +1,17 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_FF/D_FF.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Tue Jun 24 11:33:09 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+scmode1  SKY130mode		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC2-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+SC3  Net-_SC2-Pad3_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC4-Pad1_ Net-_SC1-Pad1_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC5  Net-_SC4-Pad1_ Net-_SC2-Pad3_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC2-Pad2_ Net-_SC1-Pad3_ Net-_SC3-Pad3_ Net-_SC4-Pad1_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4042B/D_FF.cir.out b/library/SubcircuitLibrary/CD4042B/D_FF.cir.out
new file mode 100644
index 000000000..ea0830808
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/D_FF.cir.out
@@ -0,0 +1,20 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/d_ff/d_ff.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+* s c m o d e
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc3 net-_sc2-pad3_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc4-pad1_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc4-pad1_ net-_sc2-pad3_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc3-pad3_ net-_sc4-pad1_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4042B/D_FF.pro b/library/SubcircuitLibrary/CD4042B/D_FF.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/D_FF.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4042B/D_FF.sch b/library/SubcircuitLibrary/CD4042B/D_FF.sch
new file mode 100644
index 000000000..722069493
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/D_FF.sch
@@ -0,0 +1,246 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode1
+U 1 1 685A3E76
+P 9400 3200
+F 0 "scmode1" H 9400 3350 98  0000 C CNB
+F 1 "SKY130mode" H 9400 3100 118 0000 C CNB
+F 2 "" H 9400 3350 60  0001 C CNN
+F 3 "" H 9400 3350 60  0001 C CNN
+	1    9400 3200
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 685A3EBD
+P 4000 3300
+F 0 "SC1" H 4050 3600 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4300 3387 50  0000 R CNN
+F 2 "" H 4000 1800 50  0001 C CNN
+F 3 "" H 4000 3300 50  0001 C CNN
+	1    4000 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 685A3EFC
+P 4000 4100
+F 0 "SC2" H 4050 4400 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4187 50  0000 R CNN
+F 2 "" H 4000 2600 50  0001 C CNN
+F 3 "" H 4000 4100 50  0001 C CNN
+	1    4000 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 685A3F47
+P 4000 4900
+F 0 "SC3" H 4050 5200 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4987 50  0000 R CNN
+F 2 "" H 4000 3400 50  0001 C CNN
+F 3 "" H 4000 4900 50  0001 C CNN
+	1    4000 4900
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 685A3F7A
+P 4950 3700
+F 0 "SC4" H 5000 4000 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5250 3787 50  0000 R CNN
+F 2 "" H 4950 2200 50  0001 C CNN
+F 3 "" H 4950 3700 50  0001 C CNN
+	1    4950 3700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC5
+U 1 1 685A3FCF
+P 4950 4500
+F 0 "SC5" H 5000 4800 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5250 4587 50  0000 R CNN
+F 2 "" H 4950 3000 50  0001 C CNN
+F 3 "" H 4950 4500 50  0001 C CNN
+	1    4950 4500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 685A401A
+P 3250 3550
+F 0 "U1" H 3300 3650 30  0000 C CNN
+F 1 "PORT" H 3250 3550 30  0000 C CNN
+F 2 "" H 3250 3550 60  0000 C CNN
+F 3 "" H 3250 3550 60  0000 C CNN
+	1    3250 3550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685A40FF
+P 3250 4100
+F 0 "U1" H 3300 4200 30  0000 C CNN
+F 1 "PORT" H 3250 4100 30  0000 C CNN
+F 2 "" H 3250 4100 60  0000 C CNN
+F 3 "" H 3250 4100 60  0000 C CNN
+	2    3250 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685A4132
+P 3950 2750
+F 0 "U1" H 4000 2850 30  0000 C CNN
+F 1 "PORT" H 3950 2750 30  0000 C CNN
+F 2 "" H 3950 2750 60  0000 C CNN
+F 3 "" H 3950 2750 60  0000 C CNN
+	3    3950 2750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685A41B1
+P 3950 5350
+F 0 "U1" H 4000 5450 30  0000 C CNN
+F 1 "PORT" H 3950 5350 30  0000 C CNN
+F 2 "" H 3950 5350 60  0000 C CNN
+F 3 "" H 3950 5350 60  0000 C CNN
+	4    3950 5350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685A4206
+P 5700 4100
+F 0 "U1" H 5750 4200 30  0000 C CNN
+F 1 "PORT" H 5700 4100 30  0000 C CNN
+F 2 "" H 5700 4100 60  0000 C CNN
+F 3 "" H 5700 4100 60  0000 C CNN
+	5    5700 4100
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	4200 3600 4200 3800
+Wire Wire Line
+	3700 3300 3600 3300
+Wire Wire Line
+	3600 3300 3600 4900
+Wire Wire Line
+	3600 4900 3700 4900
+Wire Wire Line
+	3500 3550 3600 3550
+Connection ~ 3600 3550
+Wire Wire Line
+	3500 4100 3700 4100
+Wire Wire Line
+	4200 2750 4200 3000
+Wire Wire Line
+	4650 3700 4200 3700
+Connection ~ 4200 3700
+Wire Wire Line
+	4200 4400 4200 4600
+Wire Wire Line
+	4650 4500 4200 4500
+Connection ~ 4200 4500
+Wire Wire Line
+	5150 4000 5150 4200
+Wire Wire Line
+	5450 4100 5150 4100
+Connection ~ 5150 4100
+Wire Wire Line
+	4200 5200 4200 5350
+Wire Wire Line
+	4100 4900 4250 4900
+Wire Wire Line
+	4250 4900 4250 5250
+Wire Wire Line
+	4200 5250 5150 5250
+Connection ~ 4200 5250
+Wire Wire Line
+	5150 5250 5150 4800
+Connection ~ 4250 5250
+Wire Wire Line
+	5050 4500 5200 4500
+Wire Wire Line
+	5200 4500 5200 4850
+Wire Wire Line
+	5200 4850 5150 4850
+Connection ~ 5150 4850
+Wire Wire Line
+	4100 4100 4250 4100
+Wire Wire Line
+	4250 4100 4250 4500
+Connection ~ 4250 4500
+Wire Wire Line
+	4100 3300 4250 3300
+Wire Wire Line
+	4250 3300 4250 2950
+Wire Wire Line
+	4200 2950 5150 2950
+Connection ~ 4200 2950
+Wire Wire Line
+	5150 2950 5150 3400
+Connection ~ 4250 2950
+Wire Wire Line
+	5050 3700 5200 3700
+Wire Wire Line
+	5200 3700 5200 3350
+Wire Wire Line
+	5200 3350 5150 3350
+Connection ~ 5150 3350
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4042B/D_FF.sub b/library/SubcircuitLibrary/CD4042B/D_FF.sub
new file mode 100644
index 000000000..80c6b5838
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/D_FF.sub
@@ -0,0 +1,15 @@
+* Subcircuit D_FF
+.subckt D_FF net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc3-pad3_ net-_sc4-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/d_ff/d_ff.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+* s c m o d e
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc3 net-_sc2-pad3_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc4-pad1_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc4-pad1_ net-_sc2-pad3_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* Control Statements
+
+.ends D_FF
diff --git a/library/SubcircuitLibrary/CD4042B/D_FF_Previous_Values.xml b/library/SubcircuitLibrary/CD4042B/D_FF_Previous_Values.xml
new file mode 100644
index 000000000..47ed32dc1
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/D_FF_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2><sc3><field>w=1 l=0.15</field></sc3><sc4><field>w=3 l=0.15</field></sc4><sc5><field>w=1 l=0.15</field></sc5></devicemodel><subcircuit /></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4042B/Quad_D_FF-cache.lib b/library/SubcircuitLibrary/CD4042B/Quad_D_FF-cache.lib
new file mode 100644
index 000000000..551ed8796
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/Quad_D_FF-cache.lib
@@ -0,0 +1,91 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 100 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 550 0 50 0 1 0 N
+P 2 0 1 0 -450 250 500 0 N
+P 3 0 1 0 -450 250 -450 -250 500 0 N
+X IN 1 -650 0 200 R 50 50 1 1 I
+X VDD 2 -650 150 200 R 50 50 1 1 I
+X GND 3 -650 -150 200 R 50 50 1 1 I
+X OUT 4 800 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# D_FF
+#
+DEF D_FF X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "D_FF" -150 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 250 250 -250 0 1 0 N
+X D 1 -450 150 200 R 50 50 1 1 I
+X En 2 -450 -150 200 R 50 50 1 1 I
+X Vdd 3 0 450 200 D 50 50 1 1 I
+X Gnd 4 0 -450 200 U 50 50 1 1 I
+X Out 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4042B/Quad_D_FF.bak b/library/SubcircuitLibrary/CD4042B/Quad_D_FF.bak
new file mode 100644
index 000000000..2cc300534
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/Quad_D_FF.bak
@@ -0,0 +1,426 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L D_FF X1
+U 1 1 685A4330
+P 5000 2000
+F 0 "X1" H 5000 2000 60  0000 C CNN
+F 1 "D_FF" H 4850 2000 60  0000 C CNN
+F 2 "" H 5000 2000 60  0001 C CNN
+F 3 "" H 5000 2000 60  0001 C CNN
+	1    5000 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L D_FF X2
+U 1 1 685A43B2
+P 5000 3100
+F 0 "X2" H 5000 3100 60  0000 C CNN
+F 1 "D_FF" H 4850 3100 60  0000 C CNN
+F 2 "" H 5000 3100 60  0001 C CNN
+F 3 "" H 5000 3100 60  0001 C CNN
+	1    5000 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L D_FF X3
+U 1 1 685A442D
+P 5000 4150
+F 0 "X3" H 5000 4150 60  0000 C CNN
+F 1 "D_FF" H 4850 4150 60  0000 C CNN
+F 2 "" H 5000 4150 60  0001 C CNN
+F 3 "" H 5000 4150 60  0001 C CNN
+	1    5000 4150
+	1    0    0    -1  
+$EndComp
+$Comp
+L D_FF X4
+U 1 1 685A44A2
+P 5000 5250
+F 0 "X4" H 5000 5250 60  0000 C CNN
+F 1 "D_FF" H 4850 5250 60  0000 C CNN
+F 2 "" H 5000 5250 60  0001 C CNN
+F 3 "" H 5000 5250 60  0001 C CNN
+	1    5000 5250
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X5
+U 1 1 685A4627
+P 6250 2550
+F 0 "X5" H 6250 2550 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6350 2300 60  0000 C CNN
+F 2 "" H 6250 2550 60  0001 C CNN
+F 3 "" H 6250 2550 60  0001 C CNN
+	1    6250 2550
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X6
+U 1 1 685A4674
+P 6250 3650
+F 0 "X6" H 6250 3650 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6350 3400 60  0000 C CNN
+F 2 "" H 6250 3650 60  0001 C CNN
+F 3 "" H 6250 3650 60  0001 C CNN
+	1    6250 3650
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X7
+U 1 1 685A4791
+P 6250 4700
+F 0 "X7" H 6250 4700 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6350 4450 60  0000 C CNN
+F 2 "" H 6250 4700 60  0001 C CNN
+F 3 "" H 6250 4700 60  0001 C CNN
+	1    6250 4700
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X8
+U 1 1 685A47E6
+P 6250 5800
+F 0 "X8" H 6250 5800 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6350 5550 60  0000 C CNN
+F 2 "" H 6250 5800 60  0001 C CNN
+F 3 "" H 6250 5800 60  0001 C CNN
+	1    6250 5800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 685A4895
+P 3850 1850
+F 0 "U1" H 3900 1950 30  0000 C CNN
+F 1 "PORT" H 3850 1850 30  0000 C CNN
+F 2 "" H 3850 1850 60  0000 C CNN
+F 3 "" H 3850 1850 60  0000 C CNN
+	1    3850 1850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685A492A
+P 3850 2950
+F 0 "U1" H 3900 3050 30  0000 C CNN
+F 1 "PORT" H 3850 2950 30  0000 C CNN
+F 2 "" H 3850 2950 60  0000 C CNN
+F 3 "" H 3850 2950 60  0000 C CNN
+	3    3850 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685A4A37
+P 3850 4000
+F 0 "U1" H 3900 4100 30  0000 C CNN
+F 1 "PORT" H 3850 4000 30  0000 C CNN
+F 2 "" H 3850 4000 60  0000 C CNN
+F 3 "" H 3850 4000 60  0000 C CNN
+	4    3850 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685A4B10
+P 3850 5100
+F 0 "U1" H 3900 5200 30  0000 C CNN
+F 1 "PORT" H 3850 5100 30  0000 C CNN
+F 2 "" H 3850 5100 60  0000 C CNN
+F 3 "" H 3850 5100 60  0000 C CNN
+	5    3850 5100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 8 1 685A4BE5
+P 6050 2000
+F 0 "U1" H 6100 2100 30  0000 C CNN
+F 1 "PORT" H 6050 2000 30  0000 C CNN
+F 2 "" H 6050 2000 60  0000 C CNN
+F 3 "" H 6050 2000 60  0000 C CNN
+	8    6050 2000
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 12 1 685A4CBA
+P 7350 2550
+F 0 "U1" H 7400 2650 30  0000 C CNN
+F 1 "PORT" H 7350 2550 30  0000 C CNN
+F 2 "" H 7350 2550 60  0000 C CNN
+F 3 "" H 7350 2550 60  0000 C CNN
+	12   7350 2550
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 685A4D33
+P 6050 3100
+F 0 "U1" H 6100 3200 30  0000 C CNN
+F 1 "PORT" H 6050 3100 30  0000 C CNN
+F 2 "" H 6050 3100 60  0000 C CNN
+F 3 "" H 6050 3100 60  0000 C CNN
+	9    6050 3100
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 13 1 685A4DBE
+P 7400 3650
+F 0 "U1" H 7450 3750 30  0000 C CNN
+F 1 "PORT" H 7400 3650 30  0000 C CNN
+F 2 "" H 7400 3650 60  0000 C CNN
+F 3 "" H 7400 3650 60  0000 C CNN
+	13   7400 3650
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 685A4EC7
+P 6050 4150
+F 0 "U1" H 6100 4250 30  0000 C CNN
+F 1 "PORT" H 6050 4150 30  0000 C CNN
+F 2 "" H 6050 4150 60  0000 C CNN
+F 3 "" H 6050 4150 60  0000 C CNN
+	10   6050 4150
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 14 1 685A4F44
+P 7400 4700
+F 0 "U1" H 7450 4800 30  0000 C CNN
+F 1 "PORT" H 7400 4700 30  0000 C CNN
+F 2 "" H 7400 4700 60  0000 C CNN
+F 3 "" H 7400 4700 60  0000 C CNN
+	14   7400 4700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 11 1 685A5115
+P 6050 5250
+F 0 "U1" H 6100 5350 30  0000 C CNN
+F 1 "PORT" H 6050 5250 30  0000 C CNN
+F 2 "" H 6050 5250 60  0000 C CNN
+F 3 "" H 6050 5250 60  0000 C CNN
+	11   6050 5250
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 15 1 685A52B2
+P 7400 5800
+F 0 "U1" H 7450 5900 30  0000 C CNN
+F 1 "PORT" H 7400 5800 30  0000 C CNN
+F 2 "" H 7400 5800 60  0000 C CNN
+F 3 "" H 7400 5800 60  0000 C CNN
+	15   7400 5800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 685A53F3
+P 4750 1350
+F 0 "U1" H 4800 1450 30  0000 C CNN
+F 1 "PORT" H 4750 1350 30  0000 C CNN
+F 2 "" H 4750 1350 60  0000 C CNN
+F 3 "" H 4750 1350 60  0000 C CNN
+	7    4750 1350
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+F 2 "" H 3850 2150 60  0000 C CNN
+F 3 "" H 3850 2150 60  0000 C CNN
+	2    3850 2150
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diff --git a/library/SubcircuitLibrary/CD4042B/Quad_D_FF.cir b/library/SubcircuitLibrary/CD4042B/Quad_D_FF.cir
new file mode 100644
index 000000000..37c80e10b
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/Quad_D_FF.cir
@@ -0,0 +1,20 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Quad_D_FF/Quad_D_FF.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Tue Jun 24 11:58:14 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad7_ Net-_U1-Pad6_ Net-_U1-Pad8_ D_FF		
+X2  Net-_U1-Pad3_ Net-_U1-Pad2_ Net-_U1-Pad7_ Net-_U1-Pad6_ Net-_U1-Pad9_ D_FF		
+X3  Net-_U1-Pad4_ Net-_U1-Pad2_ Net-_U1-Pad7_ Net-_U1-Pad6_ Net-_U1-Pad10_ D_FF		
+X4  Net-_U1-Pad5_ Net-_U1-Pad2_ Net-_U1-Pad7_ Net-_U1-Pad6_ Net-_U1-Pad11_ D_FF		
+X5  Net-_U1-Pad8_ Net-_U1-Pad7_ Net-_U1-Pad6_ Net-_U1-Pad12_ CMOS_INVTR		
+X6  Net-_U1-Pad9_ Net-_U1-Pad7_ Net-_U1-Pad6_ Net-_U1-Pad13_ CMOS_INVTR		
+X7  Net-_U1-Pad10_ Net-_U1-Pad7_ Net-_U1-Pad6_ Net-_U1-Pad14_ CMOS_INVTR		
+X8  Net-_U1-Pad11_ Net-_U1-Pad7_ Net-_U1-Pad6_ Net-_U1-Pad15_ CMOS_INVTR		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad9_ Net-_U1-Pad10_ Net-_U1-Pad11_ Net-_U1-Pad12_ Net-_U1-Pad13_ Net-_U1-Pad14_ Net-_U1-Pad15_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4042B/Quad_D_FF.cir.out b/library/SubcircuitLibrary/CD4042B/Quad_D_FF.cir.out
new file mode 100644
index 000000000..1a896a200
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/Quad_D_FF.cir.out
@@ -0,0 +1,25 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/quad_d_ff/quad_d_ff.cir
+
+.include D_FF.sub
+.include CMOS_INVTR.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad8_ D_FF
+x2 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad9_ D_FF
+x3 net-_u1-pad4_ net-_u1-pad2_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad10_ D_FF
+x4 net-_u1-pad5_ net-_u1-pad2_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad11_ D_FF
+x5 net-_u1-pad8_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad12_ CMOS_INVTR
+x6 net-_u1-pad9_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad13_ CMOS_INVTR
+x7 net-_u1-pad10_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad14_ CMOS_INVTR
+x8 net-_u1-pad11_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad15_ CMOS_INVTR
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4042B/Quad_D_FF.pro b/library/SubcircuitLibrary/CD4042B/Quad_D_FF.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/Quad_D_FF.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4042B/Quad_D_FF.sch b/library/SubcircuitLibrary/CD4042B/Quad_D_FF.sch
new file mode 100644
index 000000000..b11037c25
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/Quad_D_FF.sch
@@ -0,0 +1,437 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
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+F 3 "" H 6250 5800 60  0001 C CNN
+	1    6250 5800
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+Wire Wire Line
+	4100 2150 4550 2150
+Wire Wire Line
+	4350 2150 4350 5400
+Wire Wire Line
+	4350 5400 4550 5400
+Wire Wire Line
+	4550 4300 4350 4300
+Connection ~ 4350 4300
+Wire Wire Line
+	4550 3250 4350 3250
+Connection ~ 4350 3250
+Connection ~ 4350 2150
+$Comp
+L PORT U1
+U 2 1 685A7447
+P 3850 2150
+F 0 "U1" H 3900 2250 30  0000 C CNN
+F 1 "PORT" H 3850 2150 30  0000 C CNN
+F 2 "" H 3850 2150 60  0000 C CNN
+F 3 "" H 3850 2150 60  0000 C CNN
+	2    3850 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 685A7733
+P 8100 2350
+F 0 "scmode1" H 8100 2500 98  0000 C CNB
+F 1 "SKY130mode" H 8100 2250 118 0000 C CNB
+F 2 "" H 8100 2500 60  0001 C CNN
+F 3 "" H 8100 2500 60  0001 C CNN
+	1    8100 2350
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4042B/Quad_D_FF.sub b/library/SubcircuitLibrary/CD4042B/Quad_D_FF.sub
new file mode 100644
index 000000000..06850c2e5
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/Quad_D_FF.sub
@@ -0,0 +1,19 @@
+* Subcircuit Quad_D_FF
+.subckt Quad_D_FF net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/quad_d_ff/quad_d_ff.cir
+.include D_FF.sub
+.include CMOS_INVTR.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad8_ D_FF
+x2 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad9_ D_FF
+x3 net-_u1-pad4_ net-_u1-pad2_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad10_ D_FF
+x4 net-_u1-pad5_ net-_u1-pad2_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad11_ D_FF
+x5 net-_u1-pad8_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad12_ CMOS_INVTR
+x6 net-_u1-pad9_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad13_ CMOS_INVTR
+x7 net-_u1-pad10_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad14_ CMOS_INVTR
+x8 net-_u1-pad11_ net-_u1-pad7_ net-_u1-pad6_ net-_u1-pad15_ CMOS_INVTR
+* s c m o d e
+* Control Statements
+
+.ends Quad_D_FF
diff --git a/library/SubcircuitLibrary/CD4042B/Quad_D_FF_Previous_Values.xml b/library/SubcircuitLibrary/CD4042B/Quad_D_FF_Previous_Values.xml
new file mode 100644
index 000000000..bd9e78df3
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/Quad_D_FF_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_FF</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_FF</field></x2><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_FF</field></x3><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_FF</field></x4><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x5><x6><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x6><x7><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x7><x8><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x8></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch-cache.lib b/library/SubcircuitLibrary/CD4042B/TG_D_Latch-cache.lib
new file mode 100644
index 000000000..80dcddf3a
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch-cache.lib
@@ -0,0 +1,128 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 100 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 550 0 50 0 1 0 N
+P 2 0 1 0 -450 250 500 0 N
+P 3 0 1 0 -450 250 -450 -250 500 0 N
+X IN 1 -650 0 200 R 50 50 1 1 I
+X VDD 2 -650 150 200 R 50 50 1 1 I
+X GND 3 -650 -150 200 R 50 50 1 1 I
+X OUT 4 800 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch.bak b/library/SubcircuitLibrary/CD4042B/TG_D_Latch.bak
new file mode 100644
index 000000000..e176827e0
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch.bak
@@ -0,0 +1,363 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 6858190E
+P 4050 1900
+F 0 "SC1" H 4100 2200 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4350 1987 50  0000 R CNN
+F 2 "" H 4050 400 50  0001 C CNN
+F 3 "" H 4050 1900 50  0001 C CNN
+	1    4050 1900
+	0    1    1    0   
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 68581A3F
+P 4050 2600
+F 0 "SC2" H 4100 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4350 2687 50  0000 R CNN
+F 2 "" H 4050 1100 50  0001 C CNN
+F 3 "" H 4050 2600 50  0001 C CNN
+	1    4050 2600
+	0    -1   -1   0   
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 68581A7C
+P 4800 3350
+F 0 "SC3" H 4850 3650 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5100 3437 50  0000 R CNN
+F 2 "" H 4800 1850 50  0001 C CNN
+F 3 "" H 4800 3350 50  0001 C CNN
+	1    4800 3350
+	0    1    1    0   
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 68581B09
+P 4800 4000
+F 0 "SC4" H 4850 4300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5100 4087 50  0000 R CNN
+F 2 "" H 4800 2500 50  0001 C CNN
+F 3 "" H 4800 4000 50  0001 C CNN
+	1    4800 4000
+	0    -1   -1   0   
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 68581D3A
+P 6100 2300
+F 0 "X2" H 6100 2300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6200 2050 60  0000 C CNN
+F 2 "" H 6100 2300 60  0001 C CNN
+F 3 "" H 6100 2300 60  0001 C CNN
+	1    6100 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X4
+U 1 1 68581DAF
+P 8300 2300
+F 0 "X4" H 8300 2300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 8400 2050 60  0000 C CNN
+F 2 "" H 8300 2300 60  0001 C CNN
+F 3 "" H 8300 2300 60  0001 C CNN
+	1    8300 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X3
+U 1 1 68581E36
+P 7250 3400
+F 0 "X3" H 7250 3400 60  0000 C CNN
+F 1 "CMOS_INVTR" H 7350 3150 60  0000 C CNN
+F 2 "" H 7250 3400 60  0001 C CNN
+F 3 "" H 7250 3400 60  0001 C CNN
+	1    7250 3400
+	0    1    1    0   
+$EndComp
+$Comp
+L CMOS_INVTR X5
+U 1 1 68581EF3
+P 8300 4200
+F 0 "X5" H 8300 4200 60  0000 C CNN
+F 1 "CMOS_INVTR" H 8400 3950 60  0000 C CNN
+F 2 "" H 8300 4200 60  0001 C CNN
+F 3 "" H 8300 4200 60  0001 C CNN
+	1    8300 4200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 68581F84
+P 3150 2250
+F 0 "U1" H 3200 2350 30  0000 C CNN
+F 1 "PORT" H 3150 2250 30  0000 C CNN
+F 2 "" H 3150 2250 60  0000 C CNN
+F 3 "" H 3150 2250 60  0000 C CNN
+	1    3150 2250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68581FCD
+P 3150 2800
+F 0 "U1" H 3200 2900 30  0000 C CNN
+F 1 "PORT" H 3150 2800 30  0000 C CNN
+F 2 "" H 3150 2800 60  0000 C CNN
+F 3 "" H 3150 2800 60  0000 C CNN
+	2    3150 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685820FF
+P 9600 2300
+F 0 "U1" H 9650 2400 30  0000 C CNN
+F 1 "PORT" H 9600 2300 30  0000 C CNN
+F 2 "" H 9600 2300 60  0000 C CNN
+F 3 "" H 9600 2300 60  0000 C CNN
+	5    9600 2300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 685821BE
+P 9600 4200
+F 0 "U1" H 9650 4300 30  0000 C CNN
+F 1 "PORT" H 9600 4200 30  0000 C CNN
+F 2 "" H 9600 4200 60  0000 C CNN
+F 3 "" H 9600 4200 60  0000 C CNN
+	6    9600 4200
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	3750 2100 3750 2400
+Wire Wire Line
+	3400 2250 3750 2250
+Connection ~ 3750 2250
+Wire Wire Line
+	4350 2100 4350 2400
+Wire Wire Line
+	4050 2000 4050 2200
+Wire Wire Line
+	4050 2500 4050 2300
+Wire Wire Line
+	6900 2300 7650 2300
+Wire Wire Line
+	7250 2750 7250 2300
+Connection ~ 7250 2300
+Wire Wire Line
+	9100 2300 9350 2300
+Wire Wire Line
+	9100 4200 9350 4200
+Wire Wire Line
+	7250 4200 7650 4200
+Wire Wire Line
+	4500 3550 4500 3800
+Wire Wire Line
+	5100 3550 5100 3800
+Wire Wire Line
+	4800 3450 4800 3600
+Wire Wire Line
+	4800 3900 4800 3750
+Wire Wire Line
+	4400 2300 4400 3700
+Wire Wire Line
+	4400 3700 4500 3700
+Connection ~ 4500 3700
+Connection ~ 4400 2300
+Wire Wire Line
+	5100 3650 6650 3650
+Wire Wire Line
+	6650 3650 6650 4250
+Wire Wire Line
+	6650 4250 7400 4250
+Wire Wire Line
+	7400 4250 7400 4200
+Connection ~ 7400 4200
+Connection ~ 5100 3650
+Wire Wire Line
+	4050 1600 3500 1600
+Wire Wire Line
+	3500 1600 3500 4350
+Wire Wire Line
+	4050 2900 4050 3050
+Wire Wire Line
+	4050 3050 4800 3050
+Connection ~ 4050 3000
+Wire Wire Line
+	5450 2450 5450 2750
+Wire Wire Line
+	3650 2750 7100 2750
+Wire Wire Line
+	7650 2450 7000 2450
+Wire Wire Line
+	7000 2450 7000 4350
+Connection ~ 7000 2750
+Wire Wire Line
+	5450 1850 5450 2150
+Wire Wire Line
+	5300 2000 7650 2000
+Wire Wire Line
+	7650 2000 7650 2150
+Wire Wire Line
+	7400 2750 7400 2000
+Connection ~ 7400 2000
+Wire Wire Line
+	7650 4050 7650 2750
+Wire Wire Line
+	7650 2750 7400 2750
+Wire Wire Line
+	7000 4350 7650 4350
+$Comp
+L CMOS_INVTR X1
+U 1 1 68582D21
+P 3800 3500
+F 0 "X1" H 3800 3500 60  0000 C CNN
+F 1 "CMOS_INVTR" H 3900 3250 60  0000 C CNN
+F 2 "" H 3800 3500 60  0001 C CNN
+F 3 "" H 3800 3500 60  0001 C CNN
+	1    3800 3500
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	3850 3000 4050 3000
+Wire Wire Line
+	3850 2800 3850 3000
+Wire Wire Line
+	3850 2850 3800 2850
+Wire Wire Line
+	3500 4350 4800 4350
+Wire Wire Line
+	4800 4350 4800 4300
+Wire Wire Line
+	3800 4300 3800 4350
+Connection ~ 3800 4350
+Wire Wire Line
+	4350 2300 5450 2300
+Connection ~ 4350 2300
+Wire Wire Line
+	4050 2300 4100 2300
+Wire Wire Line
+	4100 2300 4100 3600
+Wire Wire Line
+	4100 3600 4800 3600
+Wire Wire Line
+	3650 2850 3650 2750
+Connection ~ 4100 2750
+Wire Wire Line
+	4050 2200 4150 2200
+Wire Wire Line
+	4150 2200 4150 4100
+Wire Wire Line
+	4150 4100 4900 4100
+Wire Wire Line
+	4900 4100 4900 3750
+Wire Wire Line
+	4900 3750 4800 3750
+Wire Wire Line
+	3950 2850 5300 2850
+Connection ~ 4150 2850
+Wire Wire Line
+	5300 2850 5300 2000
+Connection ~ 5450 2000
+Connection ~ 5450 2750
+$Comp
+L PORT U1
+U 4 1 685836DB
+P 5200 1850
+F 0 "U1" H 5250 1950 30  0000 C CNN
+F 1 "PORT" H 5200 1850 30  0000 C CNN
+F 2 "" H 5200 1850 60  0000 C CNN
+F 3 "" H 5200 1850 60  0000 C CNN
+	4    5200 1850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 6858373C
+P 4950 2550
+F 0 "U1" H 5000 2650 30  0000 C CNN
+F 1 "PORT" H 4950 2550 30  0000 C CNN
+F 2 "" H 4950 2550 60  0000 C CNN
+F 3 "" H 4950 2550 60  0000 C CNN
+	3    4950 2550
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5200 2550 5450 2550
+Connection ~ 5450 2550
+Text Label 3750 2250 0    60   ~ 0
+D
+Text Label 3550 2800 0    60   ~ 0
+clk
+Wire Wire Line
+	3850 2800 3400 2800
+Connection ~ 3850 2850
+$Comp
+L SKY130mode scmode1
+U 1 1 68583D91
+P 2350 2200
+F 0 "scmode1" H 2350 2350 98  0000 C CNB
+F 1 "SKY130mode" H 2350 2100 118 0000 C CNB
+F 2 "" H 2350 2350 60  0001 C CNN
+F 3 "" H 2350 2350 60  0001 C CNN
+	1    2350 2200
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch.cir b/library/SubcircuitLibrary/CD4042B/TG_D_Latch.cir
new file mode 100644
index 000000000..b7ab4cd1b
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch.cir
@@ -0,0 +1,19 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/TG_D_Latch/TG_D_Latch.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Mon Jun 23 11:13:51 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  /D Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad4_ sky130_fd_pr__pfet_01v8		
+SC2  /D /clk Net-_SC1-Pad3_ Net-_SC2-Pad4_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC3-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad4_ sky130_fd_pr__pfet_01v8		
+U1  /D /clk Net-_SC2-Pad4_ Net-_SC1-Pad4_ Net-_U1-Pad5_ Net-_SC1-Pad3_ PORT		
+scmode1  SKY130mode		
+SC3  Net-_SC3-Pad1_ /clk Net-_SC1-Pad3_ Net-_SC2-Pad4_ sky130_fd_pr__nfet_01v8		
+X1  /clk Net-_SC1-Pad4_ Net-_SC2-Pad4_ Net-_SC1-Pad2_ CMOS_INVTR		
+X2  Net-_SC1-Pad3_ Net-_SC1-Pad4_ Net-_SC2-Pad4_ Net-_U1-Pad5_ CMOS_INVTR		
+X3  Net-_U1-Pad5_ Net-_SC1-Pad4_ Net-_SC2-Pad4_ Net-_SC3-Pad1_ CMOS_INVTR		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch.cir.out b/library/SubcircuitLibrary/CD4042B/TG_D_Latch.cir.out
new file mode 100644
index 000000000..a2955e89a
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch.cir.out
@@ -0,0 +1,23 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/tg_d_latch/tg_d_latch.cir
+
+.include CMOS_INVTR.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc1 /d net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad4_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 /d /clk net-_sc1-pad3_ net-_sc2-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc3-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad4_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+* u1  /d /clk net-_sc2-pad4_ net-_sc1-pad4_ net-_u1-pad5_ net-_sc1-pad3_ port
+* s c m o d e
+xsc3 net-_sc3-pad1_ /clk net-_sc1-pad3_ net-_sc2-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+x1 /clk net-_sc1-pad4_ net-_sc2-pad4_ net-_sc1-pad2_ CMOS_INVTR
+x2 net-_sc1-pad3_ net-_sc1-pad4_ net-_sc2-pad4_ net-_u1-pad5_ CMOS_INVTR
+x3 net-_u1-pad5_ net-_sc1-pad4_ net-_sc2-pad4_ net-_sc3-pad1_ CMOS_INVTR
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch.pro b/library/SubcircuitLibrary/CD4042B/TG_D_Latch.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch.sch b/library/SubcircuitLibrary/CD4042B/TG_D_Latch.sch
new file mode 100644
index 000000000..1399e871f
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch.sch
@@ -0,0 +1,340 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:TG_D_Latch-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 6858190E
+P 4050 1900
+F 0 "SC1" H 4100 2200 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4350 1987 50  0000 R CNN
+F 2 "" H 4050 400 50  0001 C CNN
+F 3 "" H 4050 1900 50  0001 C CNN
+	1    4050 1900
+	0    1    1    0   
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 68581A3F
+P 4050 2600
+F 0 "SC2" H 4100 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4350 2687 50  0000 R CNN
+F 2 "" H 4050 1100 50  0001 C CNN
+F 3 "" H 4050 2600 50  0001 C CNN
+	1    4050 2600
+	0    -1   -1   0   
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 68581B09
+P 6150 3800
+F 0 "SC4" H 6200 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6450 3887 50  0000 R CNN
+F 2 "" H 6150 2300 50  0001 C CNN
+F 3 "" H 6150 3800 50  0001 C CNN
+	1    6150 3800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 68581F84
+P 3150 2250
+F 0 "U1" H 3200 2350 30  0000 C CNN
+F 1 "PORT" H 3150 2250 30  0000 C CNN
+F 2 "" H 3150 2250 60  0000 C CNN
+F 3 "" H 3150 2250 60  0000 C CNN
+	1    3150 2250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68581FCD
+P 3150 2800
+F 0 "U1" H 3200 2900 30  0000 C CNN
+F 1 "PORT" H 3150 2800 30  0000 C CNN
+F 2 "" H 3150 2800 60  0000 C CNN
+F 3 "" H 3150 2800 60  0000 C CNN
+	2    3150 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685820FF
+P 9600 2300
+F 0 "U1" H 9650 2400 30  0000 C CNN
+F 1 "PORT" H 9600 2300 30  0000 C CNN
+F 2 "" H 9600 2300 60  0000 C CNN
+F 3 "" H 9600 2300 60  0000 C CNN
+	5    9600 2300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 685821BE
+P 7050 1650
+F 0 "U1" H 7100 1750 30  0000 C CNN
+F 1 "PORT" H 7050 1650 30  0000 C CNN
+F 2 "" H 7050 1650 60  0000 C CNN
+F 3 "" H 7050 1650 60  0000 C CNN
+	6    7050 1650
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	3750 2100 3750 2400
+Wire Wire Line
+	3400 2250 3750 2250
+Connection ~ 3750 2250
+Wire Wire Line
+	4350 2100 4350 2400
+Wire Wire Line
+	8250 2300 9350 2300
+Wire Wire Line
+	6600 3500 6350 3500
+Wire Wire Line
+	6600 4100 6350 4100
+Wire Wire Line
+	6450 3400 6450 3500
+Connection ~ 6450 3500
+Connection ~ 6500 4100
+Wire Wire Line
+	4050 2900 4050 3800
+Connection ~ 4050 3000
+Wire Wire Line
+	3850 3000 7100 3000
+Wire Wire Line
+	3850 2800 3850 3000
+Wire Wire Line
+	5650 3800 5850 3800
+$Comp
+L PORT U1
+U 4 1 685836DB
+P 5200 1850
+F 0 "U1" H 5250 1950 30  0000 C CNN
+F 1 "PORT" H 5200 1850 30  0000 C CNN
+F 2 "" H 5200 1850 60  0000 C CNN
+F 3 "" H 5200 1850 60  0000 C CNN
+	4    5200 1850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 6858373C
+P 4950 2550
+F 0 "U1" H 5000 2650 30  0000 C CNN
+F 1 "PORT" H 4950 2550 30  0000 C CNN
+F 2 "" H 4950 2550 60  0000 C CNN
+F 3 "" H 4950 2550 60  0000 C CNN
+	3    4950 2550
+	1    0    0    -1  
+$EndComp
+Text Label 3750 2250 0    60   ~ 0
+D
+Text Label 3550 2800 0    60   ~ 0
+clk
+Wire Wire Line
+	3850 2800 3400 2800
+$Comp
+L SKY130mode scmode1
+U 1 1 68583D91
+P 2350 2200
+F 0 "scmode1" H 2350 2350 98  0000 C CNB
+F 1 "SKY130mode" H 2350 2100 118 0000 C CNB
+F 2 "" H 2350 2350 60  0001 C CNN
+F 3 "" H 2350 2350 60  0001 C CNN
+	1    2350 2200
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 68581A7C
+P 6800 3800
+F 0 "SC3" H 6850 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 7100 3887 50  0000 R CNN
+F 2 "" H 6800 2300 50  0001 C CNN
+F 3 "" H 6800 3800 50  0001 C CNN
+	1    6800 3800
+	-1   0    0    1   
+$EndComp
+$Comp
+L CMOS_INVTR X1
+U 1 1 6858EB8D
+P 4850 3800
+F 0 "X1" H 4850 3800 60  0000 C CNN
+F 1 "CMOS_INVTR" H 4950 3550 60  0000 C CNN
+F 2 "" H 4850 3800 60  0001 C CNN
+F 3 "" H 4850 3800 60  0001 C CNN
+	1    4850 3800
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 6858ECAA
+P 7300 2300
+F 0 "X2" H 7300 2300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 7400 2050 60  0000 C CNN
+F 2 "" H 7300 2300 60  0001 C CNN
+F 3 "" H 7300 2300 60  0001 C CNN
+	1    7300 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X3
+U 1 1 6858ED25
+P 7400 4750
+F 0 "X3" H 7400 4750 60  0000 C CNN
+F 1 "CMOS_INVTR" H 7500 4500 60  0000 C CNN
+F 2 "" H 7400 4750 60  0001 C CNN
+F 3 "" H 7400 4750 60  0001 C CNN
+	1    7400 4750
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4050 3800 4200 3800
+Wire Wire Line
+	4050 1600 5750 1600
+Wire Wire Line
+	5750 1600 5750 3800
+Connection ~ 5750 3800
+Wire Wire Line
+	7100 3000 7100 3800
+Wire Wire Line
+	6650 2300 4350 2300
+Connection ~ 4350 2300
+Wire Wire Line
+	8100 2300 8100 4750
+Wire Wire Line
+	8100 4750 8050 4750
+Wire Wire Line
+	8250 2300 8250 2550
+Wire Wire Line
+	8250 2550 8100 2550
+Connection ~ 8100 2550
+Wire Wire Line
+	6400 1650 6400 3400
+Wire Wire Line
+	6400 1650 6800 1650
+Connection ~ 6400 2300
+Wire Wire Line
+	6500 4100 6500 4750
+Wire Wire Line
+	6500 4750 6600 4750
+Wire Wire Line
+	6400 3400 6450 3400
+Wire Wire Line
+	5450 1850 6250 1850
+Wire Wire Line
+	6250 1850 6250 2150
+Wire Wire Line
+	6250 2150 6650 2150
+Wire Wire Line
+	5200 2550 6650 2550
+Wire Wire Line
+	6650 2550 6650 2450
+Wire Wire Line
+	4050 2000 4050 2200
+Wire Wire Line
+	4050 2200 5550 2200
+Wire Wire Line
+	5550 2200 5550 1850
+Connection ~ 5550 1850
+Wire Wire Line
+	4050 2500 5400 2500
+Wire Wire Line
+	5400 2500 5400 3250
+Connection ~ 5400 2550
+Wire Wire Line
+	4200 3650 4200 2750
+Wire Wire Line
+	4200 2750 4650 2750
+Wire Wire Line
+	4650 2750 4650 2200
+Connection ~ 4650 2200
+Wire Wire Line
+	4200 3950 4150 3950
+Wire Wire Line
+	4150 3950 4150 3250
+Wire Wire Line
+	4150 3250 5400 3250
+Wire Wire Line
+	8050 4600 8050 2850
+Wire Wire Line
+	8050 2850 5900 2850
+Wire Wire Line
+	5900 2850 5900 1850
+Connection ~ 5900 1850
+Wire Wire Line
+	8050 4900 8050 5150
+Wire Wire Line
+	8050 5150 4100 5150
+Wire Wire Line
+	4100 5150 4100 3900
+Wire Wire Line
+	4100 3900 4150 3900
+Connection ~ 4150 3900
+Wire Wire Line
+	6250 3800 6250 3700
+Wire Wire Line
+	6250 3700 8050 3700
+Connection ~ 8050 3700
+Wire Wire Line
+	6700 3800 6450 3800
+Wire Wire Line
+	6450 3800 6450 3900
+Wire Wire Line
+	6450 3900 6050 3900
+Wire Wire Line
+	6050 3900 6050 5150
+Connection ~ 6050 5150
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch.sub b/library/SubcircuitLibrary/CD4042B/TG_D_Latch.sub
new file mode 100644
index 000000000..7f190ea3c
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch.sub
@@ -0,0 +1,17 @@
+* Subcircuit TG_D_Latch
+.subckt TG_D_Latch /d /clk net-_sc2-pad4_ net-_sc1-pad4_ net-_u1-pad5_ net-_sc1-pad3_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/tg_d_latch/tg_d_latch.cir
+.include CMOS_INVTR.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc1 /d net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad4_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 /d /clk net-_sc1-pad3_ net-_sc2-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc3-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad4_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+* s c m o d e
+xsc3 net-_sc3-pad1_ /clk net-_sc1-pad3_ net-_sc2-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+x1 /clk net-_sc1-pad4_ net-_sc2-pad4_ net-_sc1-pad2_ CMOS_INVTR
+x2 net-_sc1-pad3_ net-_sc1-pad4_ net-_sc2-pad4_ net-_u1-pad5_ CMOS_INVTR
+x3 net-_u1-pad5_ net-_sc1-pad4_ net-_sc2-pad4_ net-_sc3-pad1_ CMOS_INVTR
+* Control Statements
+
+.ends TG_D_Latch
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch_Previous_Values.xml b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_Previous_Values.xml
new file mode 100644
index 000000000..2fd740063
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2><sc4><field>w=3 l=0.15</field></sc4><sc3><field>w=1 l=0.15</field></sc3></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x2><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x3></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl-cache.lib b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.bak b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.bak
new file mode 100644
index 000000000..612d217bf
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.bak
@@ -0,0 +1,336 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 68582578
+P 4000 2050
+F 0 "SC1" H 4050 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4300 2137 50  0000 R CNN
+F 2 "" H 4000 550 50  0001 C CNN
+F 3 "" H 4000 2050 50  0001 C CNN
+	1    4000 2050
+	0    1    1    0   
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 685825B9
+P 4000 2800
+F 0 "SC2" H 4050 3100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 2887 50  0000 R CNN
+F 2 "" H 4000 1300 50  0001 C CNN
+F 3 "" H 4000 2800 50  0001 C CNN
+	1    4000 2800
+	0    -1   -1   0   
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 685825F4
+P 4000 3800
+F 0 "SC3" H 4050 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 3887 50  0000 R CNN
+F 2 "" H 4000 2300 50  0001 C CNN
+F 3 "" H 4000 3800 50  0001 C CNN
+	1    4000 3800
+	0    1    1    0   
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 6858276D
+P 4000 4500
+F 0 "SC4" H 4050 4800 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4300 4587 50  0000 R CNN
+F 2 "" H 4000 3000 50  0001 C CNN
+F 3 "" H 4000 4500 50  0001 C CNN
+	1    4000 4500
+	0    -1   -1   0   
+$EndComp
+Wire Wire Line
+	3700 2250 3700 2600
+Wire Wire Line
+	4300 2250 4300 2600
+Wire Wire Line
+	4000 3100 4000 3500
+Wire Wire Line
+	3700 4000 3700 4300
+Wire Wire Line
+	4300 4000 4300 4300
+Wire Wire Line
+	4000 1750 4000 1650
+Wire Wire Line
+	4000 1650 3500 1650
+Wire Wire Line
+	3500 1650 3500 4900
+Wire Wire Line
+	3400 4900 4000 4900
+Wire Wire Line
+	4000 4900 4000 4800
+$Comp
+L CMOS_INVTR X1
+U 1 1 685828D6
+P 2500 2400
+F 0 "X1" H 2500 2400 60  0000 C CNN
+F 1 "CMOS_INVTR" H 2600 2150 60  0000 C CNN
+F 2 "" H 2500 2400 60  0001 C CNN
+F 3 "" H 2500 2400 60  0001 C CNN
+	1    2500 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X4
+U 1 1 68582953
+P 5550 2400
+F 0 "X4" H 5550 2400 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5650 2150 60  0000 C CNN
+F 2 "" H 5550 2400 60  0001 C CNN
+F 3 "" H 5550 2400 60  0001 C CNN
+	1    5550 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X5
+U 1 1 685829C8
+P 7300 2400
+F 0 "X5" H 7300 2400 60  0000 C CNN
+F 1 "CMOS_INVTR" H 7400 2150 60  0000 C CNN
+F 2 "" H 7300 2400 60  0001 C CNN
+F 3 "" H 7300 2400 60  0001 C CNN
+	1    7300 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 68582A57
+P 2500 5700
+F 0 "X2" H 2500 5700 60  0000 C CNN
+F 1 "CMOS_INVTR" H 2600 5450 60  0000 C CNN
+F 2 "" H 2500 5700 60  0001 C CNN
+F 3 "" H 2500 5700 60  0001 C CNN
+	1    2500 5700
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X3
+U 1 1 68582AF8
+P 4200 5700
+F 0 "X3" H 4200 5700 60  0000 C CNN
+F 1 "CMOS_INVTR" H 4300 5450 60  0000 C CNN
+F 2 "" H 4200 5700 60  0001 C CNN
+F 3 "" H 4200 5700 60  0001 C CNN
+	1    4200 5700
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	1850 2250 1850 2000
+Wire Wire Line
+	1650 2000 6650 2000
+Wire Wire Line
+	6650 2000 6650 2250
+Wire Wire Line
+	1850 2550 1850 2800
+Wire Wire Line
+	1850 2800 6650 2800
+Wire Wire Line
+	6650 2800 6650 2550
+Wire Wire Line
+	4900 2550 4900 2800
+Connection ~ 4900 2800
+Wire Wire Line
+	4900 2250 4900 2000
+Connection ~ 4900 2000
+Wire Wire Line
+	6350 2400 6650 2400
+Wire Wire Line
+	3300 2400 3700 2400
+Connection ~ 3700 2400
+Wire Wire Line
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+Connection ~ 4300 2400
+Wire Wire Line
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+Wire Wire Line
+	3850 2150 3850 2000
+Connection ~ 3850 2000
+Wire Wire Line
+	4000 2700 3800 2700
+Wire Wire Line
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+Connection ~ 3800 2800
+Wire Wire Line
+	1850 5550 1850 3100
+Wire Wire Line
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+Wire Wire Line
+	1650 3100 1650 2000
+Connection ~ 1850 2000
+Wire Wire Line
+	4000 4400 4000 4500
+Wire Wire Line
+	4000 4500 1850 4500
+Connection ~ 1850 4500
+Wire Wire Line
+	3550 5550 3550 4500
+Connection ~ 3550 4500
+Wire Wire Line
+	1850 5850 1850 6000
+Wire Wire Line
+	1850 6000 3550 6000
+Wire Wire Line
+	3550 6000 3550 5850
+Wire Wire Line
+	2850 2800 2850 6000
+Connection ~ 2850 6000
+Connection ~ 2850 2800
+Wire Wire Line
+	4000 3900 4000 3800
+Wire Wire Line
+	4000 3800 3500 3800
+Connection ~ 3500 3800
+Wire Wire Line
+	3300 5700 3550 5700
+Wire Wire Line
+	3400 4900 3400 5700
+Connection ~ 3400 5700
+Connection ~ 3500 4900
+Wire Wire Line
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+Wire Wire Line
+	5000 3300 5000 5700
+Connection ~ 4000 3300
+$Comp
+L PORT U1
+U 1 1 6858317A
+P 1250 2400
+F 0 "U1" H 1300 2500 30  0000 C CNN
+F 1 "PORT" H 1250 2400 30  0000 C CNN
+F 2 "" H 1250 2400 60  0000 C CNN
+F 3 "" H 1250 2400 60  0000 C CNN
+	1    1250 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685831F1
+P 1400 5700
+F 0 "U1" H 1450 5800 30  0000 C CNN
+F 1 "PORT" H 1400 5700 30  0000 C CNN
+F 2 "" H 1400 5700 60  0000 C CNN
+F 3 "" H 1400 5700 60  0000 C CNN
+	2    1400 5700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 68583299
+P 8550 2400
+F 0 "U1" H 8600 2500 30  0000 C CNN
+F 1 "PORT" H 8550 2400 30  0000 C CNN
+F 2 "" H 8550 2400 60  0000 C CNN
+F 3 "" H 8550 2400 60  0000 C CNN
+	5    8550 2400
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68583330
+P 6750 3050
+F 0 "U1" H 6800 3150 30  0000 C CNN
+F 1 "PORT" H 6750 3050 30  0000 C CNN
+F 2 "" H 6750 3050 60  0000 C CNN
+F 3 "" H 6750 3050 60  0000 C CNN
+	4    6750 3050
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685833C1
+P 6200 1800
+F 0 "U1" H 6250 1900 30  0000 C CNN
+F 1 "PORT" H 6200 1800 30  0000 C CNN
+F 2 "" H 6200 1800 60  0000 C CNN
+F 3 "" H 6200 1800 60  0000 C CNN
+	3    6200 1800
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	1500 2400 1850 2400
+Wire Wire Line
+	6450 1800 6450 2000
+Connection ~ 6450 2000
+Wire Wire Line
+	6500 3050 6500 2800
+Connection ~ 6500 2800
+Wire Wire Line
+	8100 2400 8300 2400
+Wire Wire Line
+	1650 5700 1850 5700
+Text Label 1550 2400 0    60   ~ 0
+clock
+Text Label 1750 5700 1    60   ~ 0
+polarity
+Text Label 8150 2400 0    60   ~ 0
+clock
+$Comp
+L SKY130mode scmode1
+U 1 1 68583B39
+P 8050 3950
+F 0 "scmode1" H 8050 4100 98  0000 C CNB
+F 1 "SKY130mode" H 8050 3850 118 0000 C CNB
+F 2 "" H 8050 4100 60  0001 C CNN
+F 3 "" H 8050 4100 60  0001 C CNN
+	1    8050 3950
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.cir b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.cir
new file mode 100644
index 000000000..135a5112c
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.cir
@@ -0,0 +1,34 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/TG_D_Latch_ctrl/TG_D_Latch_ctrl.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Mon Jun 23 11:40:14 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+U1  /clock /polarity /Vdd /Gnd /Out PORT		
+scmode1  SKY130mode		
+SC5  Net-_SC10-Pad1_ Net-_SC1-Pad1_ /Vdd /Vdd sky130_fd_pr__pfet_01v8		
+SC10  Net-_SC10-Pad1_ /clock /Vdd /Vdd sky130_fd_pr__pfet_01v8		
+SC1  Net-_SC1-Pad1_ /polarity /Vdd /Vdd sky130_fd_pr__pfet_01v8		
+SC13  Net-_SC13-Pad1_ Net-_SC10-Pad1_ /Vdd /Vdd sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ /polarity /Gnd /Gnd sky130_fd_pr__nfet_01v8		
+SC7  Net-_SC10-Pad1_ Net-_SC1-Pad1_ Net-_SC7-Pad3_ Net-_SC7-Pad3_ sky130_fd_pr__nfet_01v8		
+SC9  Net-_SC7-Pad3_ /clock /Gnd /Gnd sky130_fd_pr__nfet_01v8		
+SC14  Net-_SC13-Pad1_ Net-_SC10-Pad1_ /Gnd /Gnd sky130_fd_pr__nfet_01v8		
+SC6  Net-_SC12-Pad1_ Net-_SC3-Pad1_ /Vdd /Vdd sky130_fd_pr__pfet_01v8		
+SC12  Net-_SC12-Pad1_ /polarity /Vdd /Vdd sky130_fd_pr__pfet_01v8		
+SC3  Net-_SC3-Pad1_ /clock /Vdd /Vdd sky130_fd_pr__pfet_01v8		
+SC15  Net-_SC15-Pad1_ Net-_SC12-Pad1_ /Vdd /Vdd sky130_fd_pr__pfet_01v8		
+SC4  Net-_SC3-Pad1_ /clock /Gnd /Gnd sky130_fd_pr__nfet_01v8		
+SC8  Net-_SC12-Pad1_ Net-_SC3-Pad1_ Net-_SC11-Pad1_ Net-_SC11-Pad1_ sky130_fd_pr__nfet_01v8		
+SC11  Net-_SC11-Pad1_ /polarity /Gnd /Gnd sky130_fd_pr__nfet_01v8		
+SC16  Net-_SC15-Pad1_ Net-_SC12-Pad1_ /Gnd /Gnd sky130_fd_pr__nfet_01v8		
+SC18  Net-_SC18-Pad1_ Net-_SC13-Pad1_ /Vdd /Vdd sky130_fd_pr__pfet_01v8		
+SC19  Net-_SC17-Pad1_ Net-_SC15-Pad1_ Net-_SC18-Pad1_ Net-_SC18-Pad1_ sky130_fd_pr__pfet_01v8		
+SC21  /Out Net-_SC17-Pad1_ /Vdd /Vdd sky130_fd_pr__pfet_01v8		
+SC17  Net-_SC17-Pad1_ Net-_SC13-Pad1_ /Gnd /Gnd sky130_fd_pr__nfet_01v8		
+SC20  Net-_SC17-Pad1_ Net-_SC15-Pad1_ /Gnd /Gnd sky130_fd_pr__nfet_01v8		
+SC22  /Out Net-_SC17-Pad1_ /Gnd /Gnd sky130_fd_pr__nfet_01v8		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.cir.out b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.cir.out
new file mode 100644
index 000000000..34cfb755f
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.cir.out
@@ -0,0 +1,37 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/tg_d_latch_ctrl/tg_d_latch_ctrl.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+* u1  /clock /polarity /vdd /gnd /out port
+* s c m o d e
+xsc5 net-_sc10-pad1_ net-_sc1-pad1_ /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc10 net-_sc10-pad1_ /clock /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ /polarity /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc13 net-_sc13-pad1_ net-_sc10-pad1_ /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ /polarity /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc7 net-_sc10-pad1_ net-_sc1-pad1_ net-_sc7-pad3_ net-_sc7-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc9 net-_sc7-pad3_ /clock /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc14 net-_sc13-pad1_ net-_sc10-pad1_ /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc6 net-_sc12-pad1_ net-_sc3-pad1_ /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc12 net-_sc12-pad1_ /polarity /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc3-pad1_ /clock /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc15 net-_sc15-pad1_ net-_sc12-pad1_ /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc4 net-_sc3-pad1_ /clock /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc8 net-_sc12-pad1_ net-_sc3-pad1_ net-_sc11-pad1_ net-_sc11-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc11 net-_sc11-pad1_ /polarity /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc16 net-_sc15-pad1_ net-_sc12-pad1_ /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc18 net-_sc18-pad1_ net-_sc13-pad1_ /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc19 net-_sc17-pad1_ net-_sc15-pad1_ net-_sc18-pad1_ net-_sc18-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc21 /out net-_sc17-pad1_ /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc17 net-_sc17-pad1_ net-_sc13-pad1_ /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc20 net-_sc17-pad1_ net-_sc15-pad1_ /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc22 /out net-_sc17-pad1_ /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.pro b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.sch b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.sch
new file mode 100644
index 000000000..faaff3081
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.sch
@@ -0,0 +1,700 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:TG_D_Latch_ctrl-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
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+F 1 "PORT" H 3300 2750 30  0000 C CNN
+F 2 "" H 3300 2750 60  0000 C CNN
+F 3 "" H 3300 2750 60  0000 C CNN
+	1    3300 2750
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 0 "U1" H 1200 2300 30  0000 C CNN
+F 1 "PORT" H 1150 2200 30  0000 C CNN
+F 2 "" H 1150 2200 60  0000 C CNN
+F 3 "" H 1150 2200 60  0000 C CNN
+	2    1150 2200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
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+P 8250 3550
+F 0 "U1" H 8300 3650 30  0000 C CNN
+F 1 "PORT" H 8250 3550 30  0000 C CNN
+F 2 "" H 8250 3550 60  0000 C CNN
+F 3 "" H 8250 3550 60  0000 C CNN
+	5    8250 3550
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68583330
+P 4800 3900
+F 0 "U1" H 4850 4000 30  0000 C CNN
+F 1 "PORT" H 4800 3900 30  0000 C CNN
+F 2 "" H 4800 3900 60  0000 C CNN
+F 3 "" H 4800 3900 60  0000 C CNN
+	4    4800 3900
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685833C1
+P 3650 1000
+F 0 "U1" H 3700 1100 30  0000 C CNN
+F 1 "PORT" H 3650 1000 30  0000 C CNN
+F 2 "" H 3650 1000 60  0000 C CNN
+F 3 "" H 3650 1000 60  0000 C CNN
+	3    3650 1000
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 68583B39
+P 10650 2400
+F 0 "scmode1" H 10650 2550 98  0000 C CNB
+F 1 "SKY130mode" H 10650 2300 118 0000 C CNB
+F 2 "" H 10650 2550 60  0001 C CNN
+F 3 "" H 10650 2550 60  0001 C CNN
+	1    10650 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC5
+U 1 1 6858F184
+P 2700 1750
+F 0 "SC5" H 2750 2050 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 3000 1837 50  0000 R CNN
+F 2 "" H 2700 250 50  0001 C CNN
+F 3 "" H 2700 1750 50  0001 C CNN
+	1    2700 1750
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC10
+U 1 1 6858F1CD
+P 3350 1750
+F 0 "SC10" H 3400 2050 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 3650 1837 50  0000 R CNN
+F 2 "" H 3350 250 50  0001 C CNN
+F 3 "" H 3350 1750 50  0001 C CNN
+	1    3350 1750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 6858F56C
+P 1950 1750
+F 0 "SC1" H 2000 2050 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 2250 1837 50  0000 R CNN
+F 2 "" H 1950 250 50  0001 C CNN
+F 3 "" H 1950 1750 50  0001 C CNN
+	1    1950 1750
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC13
+U 1 1 6858F728
+P 4300 1750
+F 0 "SC13" H 4350 2050 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4600 1837 50  0000 R CNN
+F 2 "" H 4300 250 50  0001 C CNN
+F 3 "" H 4300 1750 50  0001 C CNN
+	1    4300 1750
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 6858F78D
+P 1950 2600
+F 0 "SC2" H 2000 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 2250 2687 50  0000 R CNN
+F 2 "" H 1950 1100 50  0001 C CNN
+F 3 "" H 1950 2600 50  0001 C CNN
+	1    1950 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC7
+U 1 1 6858F7FC
+P 2850 2600
+F 0 "SC7" H 2900 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 3150 2687 50  0000 R CNN
+F 2 "" H 2850 1100 50  0001 C CNN
+F 3 "" H 2850 2600 50  0001 C CNN
+	1    2850 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC9
+U 1 1 6858F96B
+P 3250 3350
+F 0 "SC9" H 3300 3650 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 3550 3437 50  0000 R CNN
+F 2 "" H 3250 1850 50  0001 C CNN
+F 3 "" H 3250 3350 50  0001 C CNN
+	1    3250 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC14
+U 1 1 6858FADD
+P 4300 2550
+F 0 "SC14" H 4350 2850 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4600 2637 50  0000 R CNN
+F 2 "" H 4300 1050 50  0001 C CNN
+F 3 "" H 4300 2550 50  0001 C CNN
+	1    4300 2550
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC6
+U 1 1 68590EC2
+P 2800 5000
+F 0 "SC6" H 2850 5300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 3100 5087 50  0000 R CNN
+F 2 "" H 2800 3500 50  0001 C CNN
+F 3 "" H 2800 5000 50  0001 C CNN
+	1    2800 5000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC12
+U 1 1 68590EC9
+P 3450 5000
+F 0 "SC12" H 3500 5300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 3750 5087 50  0000 R CNN
+F 2 "" H 3450 3500 50  0001 C CNN
+F 3 "" H 3450 5000 50  0001 C CNN
+	1    3450 5000
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 68590ED0
+P 2050 5000
+F 0 "SC3" H 2100 5300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 2350 5087 50  0000 R CNN
+F 2 "" H 2050 3500 50  0001 C CNN
+F 3 "" H 2050 5000 50  0001 C CNN
+	1    2050 5000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC15
+U 1 1 68590ED7
+P 4400 5000
+F 0 "SC15" H 4450 5300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4700 5087 50  0000 R CNN
+F 2 "" H 4400 3500 50  0001 C CNN
+F 3 "" H 4400 5000 50  0001 C CNN
+	1    4400 5000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 68590EDE
+P 2050 5850
+F 0 "SC4" H 2100 6150 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 2350 5937 50  0000 R CNN
+F 2 "" H 2050 4350 50  0001 C CNN
+F 3 "" H 2050 5850 50  0001 C CNN
+	1    2050 5850
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC8
+U 1 1 68590EE5
+P 2950 5850
+F 0 "SC8" H 3000 6150 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 3250 5937 50  0000 R CNN
+F 2 "" H 2950 4350 50  0001 C CNN
+F 3 "" H 2950 5850 50  0001 C CNN
+	1    2950 5850
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC11
+U 1 1 68590EEC
+P 3350 6600
+F 0 "SC11" H 3400 6900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 3650 6687 50  0000 R CNN
+F 2 "" H 3350 5100 50  0001 C CNN
+F 3 "" H 3350 6600 50  0001 C CNN
+	1    3350 6600
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC16
+U 1 1 68590EF3
+P 4400 5800
+F 0 "SC16" H 4450 6100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4700 5887 50  0000 R CNN
+F 2 "" H 4400 4300 50  0001 C CNN
+F 3 "" H 4400 5800 50  0001 C CNN
+	1    4400 5800
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC18
+U 1 1 6859119B
+P 6150 2500
+F 0 "SC18" H 6200 2800 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6450 2587 50  0000 R CNN
+F 2 "" H 6150 1000 50  0001 C CNN
+F 3 "" H 6150 2500 50  0001 C CNN
+	1    6150 2500
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC19
+U 1 1 68591314
+P 6550 3200
+F 0 "SC19" H 6600 3500 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6850 3287 50  0000 R CNN
+F 2 "" H 6550 1700 50  0001 C CNN
+F 3 "" H 6550 3200 50  0001 C CNN
+	1    6550 3200
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC21
+U 1 1 68591481
+P 7700 3200
+F 0 "SC21" H 7750 3500 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 8000 3287 50  0000 R CNN
+F 2 "" H 7700 1700 50  0001 C CNN
+F 3 "" H 7700 3200 50  0001 C CNN
+	1    7700 3200
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC17
+U 1 1 6859153C
+P 6000 3950
+F 0 "SC17" H 6050 4250 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6300 4037 50  0000 R CNN
+F 2 "" H 6000 2450 50  0001 C CNN
+F 3 "" H 6000 3950 50  0001 C CNN
+	1    6000 3950
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC20
+U 1 1 685918B6
+P 6700 3950
+F 0 "SC20" H 6750 4250 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 7000 4037 50  0000 R CNN
+F 2 "" H 6700 2450 50  0001 C CNN
+F 3 "" H 6700 3950 50  0001 C CNN
+	1    6700 3950
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC22
+U 1 1 6859198A
+P 7700 3950
+F 0 "SC22" H 7750 4250 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 8000 4037 50  0000 R CNN
+F 2 "" H 7700 2450 50  0001 C CNN
+F 3 "" H 7700 3950 50  0001 C CNN
+	1    7700 3950
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	2150 1450 2150 1350
+Wire Wire Line
+	2150 1350 5550 1350
+Wire Wire Line
+	4500 1350 4500 1450
+Wire Wire Line
+	2900 1450 2900 1350
+Connection ~ 2900 1350
+Wire Wire Line
+	3150 1450 3150 1350
+Connection ~ 3150 1350
+Wire Wire Line
+	2800 1750 2950 1750
+Wire Wire Line
+	2950 1750 2950 1350
+Connection ~ 2950 1350
+Wire Wire Line
+	3250 1750 3100 1750
+Wire Wire Line
+	3100 1750 3100 1350
+Connection ~ 3100 1350
+Wire Wire Line
+	2050 1750 2200 1750
+Wire Wire Line
+	2200 1750 2200 1350
+Connection ~ 2200 1350
+Wire Wire Line
+	4400 1750 4550 1750
+Wire Wire Line
+	4550 1750 4550 1350
+Connection ~ 4500 1350
+Wire Wire Line
+	2900 2050 3150 2050
+Wire Wire Line
+	3050 2300 3050 2050
+Connection ~ 3050 2050
+Wire Wire Line
+	2150 2050 2150 2300
+Wire Wire Line
+	2400 1750 2400 2600
+Wire Wire Line
+	2400 2600 2550 2600
+Wire Wire Line
+	2150 2200 2400 2200
+Connection ~ 2400 2200
+Connection ~ 2150 2200
+Wire Wire Line
+	3650 1750 3650 3350
+Wire Wire Line
+	3650 3350 3550 3350
+Wire Wire Line
+	3050 2900 3050 3050
+Wire Wire Line
+	2950 2600 3100 2600
+Wire Wire Line
+	3100 2600 3100 2950
+Wire Wire Line
+	3100 2950 3050 2950
+Connection ~ 3050 2950
+Wire Wire Line
+	3150 3350 3000 3350
+Wire Wire Line
+	3000 3350 3000 3700
+Wire Wire Line
+	2200 3700 5500 3700
+Wire Wire Line
+	3050 3700 3050 3650
+Wire Wire Line
+	4000 1750 4000 2550
+Wire Wire Line
+	3050 2150 4000 2150
+Connection ~ 4000 2150
+Connection ~ 3050 2150
+Wire Wire Line
+	4500 2050 4500 2250
+Wire Wire Line
+	1650 1750 1650 2600
+Wire Wire Line
+	4400 2550 4550 2550
+Wire Wire Line
+	4550 2550 4550 3900
+Wire Wire Line
+	4550 2850 4500 2850
+Wire Wire Line
+	2050 2600 2200 2600
+Wire Wire Line
+	2200 2600 2200 3700
+Wire Wire Line
+	2200 2900 2150 2900
+Wire Wire Line
+	2250 4700 2250 4600
+Wire Wire Line
+	2250 4600 4650 4600
+Wire Wire Line
+	4600 4600 4600 4700
+Wire Wire Line
+	3000 4700 3000 4600
+Connection ~ 3000 4600
+Wire Wire Line
+	3250 4700 3250 4600
+Connection ~ 3250 4600
+Wire Wire Line
+	2900 5000 3050 5000
+Wire Wire Line
+	3050 5000 3050 4600
+Connection ~ 3050 4600
+Wire Wire Line
+	3350 5000 3200 5000
+Wire Wire Line
+	3200 5000 3200 4600
+Connection ~ 3200 4600
+Wire Wire Line
+	2150 5000 2300 5000
+Wire Wire Line
+	2300 5000 2300 4600
+Connection ~ 2300 4600
+Wire Wire Line
+	4500 5000 4650 5000
+Wire Wire Line
+	4650 5000 4650 4600
+Connection ~ 4600 4600
+Wire Wire Line
+	3000 5300 3250 5300
+Wire Wire Line
+	3150 5550 3150 5300
+Connection ~ 3150 5300
+Wire Wire Line
+	2250 5300 2250 5550
+Wire Wire Line
+	2500 5000 2500 5850
+Wire Wire Line
+	2500 5850 2650 5850
+Wire Wire Line
+	2250 5450 2500 5450
+Connection ~ 2500 5450
+Connection ~ 2250 5450
+Wire Wire Line
+	3750 5000 3750 6600
+Wire Wire Line
+	3750 6600 3650 6600
+Wire Wire Line
+	3150 6150 3150 6300
+Wire Wire Line
+	3050 5850 3200 5850
+Wire Wire Line
+	3200 5850 3200 6200
+Wire Wire Line
+	3200 6200 3150 6200
+Connection ~ 3150 6200
+Wire Wire Line
+	3250 6600 3100 6600
+Wire Wire Line
+	3100 6600 3100 6950
+Wire Wire Line
+	4650 6950 2300 6950
+Wire Wire Line
+	3150 6950 3150 6900
+Wire Wire Line
+	4100 5000 4100 5800
+Wire Wire Line
+	3150 5400 4100 5400
+Connection ~ 4100 5400
+Connection ~ 3150 5400
+Wire Wire Line
+	4600 5300 4600 5500
+Wire Wire Line
+	1750 5000 1750 5850
+Wire Wire Line
+	4500 5800 4650 5800
+Wire Wire Line
+	4650 5800 4650 6950
+Wire Wire Line
+	4650 6100 4600 6100
+Wire Wire Line
+	2150 5850 2300 5850
+Wire Wire Line
+	2300 5850 2300 6950
+Wire Wire Line
+	2300 6150 2250 6150
+Wire Wire Line
+	6350 2800 6350 2900
+Wire Wire Line
+	6350 2200 7900 2200
+Wire Wire Line
+	7900 2200 7900 2900
+Wire Wire Line
+	6250 2500 6400 2500
+Wire Wire Line
+	6400 2500 6400 2200
+Connection ~ 6400 2200
+Wire Wire Line
+	7800 3200 7950 3200
+Wire Wire Line
+	7950 3200 7950 2800
+Wire Wire Line
+	7950 2800 7900 2800
+Connection ~ 7900 2800
+Wire Wire Line
+	6200 3650 6500 3650
+Wire Wire Line
+	6350 3500 6350 3650
+Connection ~ 6350 3650
+Wire Wire Line
+	7400 3200 7400 3950
+Wire Wire Line
+	6350 3600 7400 3600
+Connection ~ 7400 3600
+Connection ~ 6350 3600
+Wire Wire Line
+	7900 3500 7900 3650
+Wire Wire Line
+	6200 4250 6200 4300
+Wire Wire Line
+	5500 4300 8000 4300
+Wire Wire Line
+	7900 4300 7900 4250
+Wire Wire Line
+	6500 4250 6500 4300
+Connection ~ 6500 4300
+Wire Wire Line
+	6600 3950 6450 3950
+Wire Wire Line
+	6450 3950 6450 4300
+Connection ~ 6450 4300
+Wire Wire Line
+	6100 3950 6250 3950
+Wire Wire Line
+	6250 3950 6250 4300
+Connection ~ 6250 4300
+Wire Wire Line
+	6850 3200 7000 3200
+Wire Wire Line
+	7000 3200 7000 3950
+Wire Wire Line
+	5850 2500 5700 2500
+Wire Wire Line
+	5700 2500 5700 3950
+Wire Wire Line
+	6450 3200 6300 3200
+Wire Wire Line
+	6300 3200 6300 2850
+Wire Wire Line
+	6300 2850 6350 2850
+Connection ~ 6350 2850
+Wire Wire Line
+	3550 2750 3900 2750
+Connection ~ 3650 2750
+Wire Wire Line
+	3900 2750 3900 4350
+Wire Wire Line
+	3900 4350 1650 4350
+Wire Wire Line
+	1650 4350 1650 5450
+Wire Wire Line
+	1650 5450 1750 5450
+Connection ~ 1750 5450
+Wire Wire Line
+	1400 2200 1650 2200
+Connection ~ 1650 2200
+Wire Wire Line
+	1500 2200 1500 4250
+Wire Wire Line
+	1500 4250 3850 4250
+Wire Wire Line
+	3850 4250 3850 5700
+Wire Wire Line
+	3850 5700 3750 5700
+Connection ~ 3750 5700
+Connection ~ 1500 2200
+Wire Wire Line
+	4500 2150 5700 2150
+Wire Wire Line
+	5700 2150 5700 2550
+Connection ~ 5700 2550
+Connection ~ 4500 2150
+Wire Wire Line
+	4600 5400 7100 5400
+Wire Wire Line
+	7100 5400 7100 3700
+Wire Wire Line
+	7100 3700 7000 3700
+Connection ~ 7000 3700
+Connection ~ 4600 5400
+Wire Wire Line
+	4350 4600 4350 3450
+Wire Wire Line
+	4350 3450 5550 3450
+Wire Wire Line
+	5550 3450 5550 1350
+Wire Wire Line
+	5550 1950 7050 1950
+Wire Wire Line
+	7050 1950 7050 2200
+Connection ~ 7050 2200
+Connection ~ 4350 4600
+Connection ~ 5550 1950
+Connection ~ 4550 1350
+Wire Wire Line
+	3900 1000 3900 1350
+Connection ~ 3900 1350
+Connection ~ 3000 3700
+Connection ~ 2200 2900
+Connection ~ 3050 3700
+Connection ~ 4550 2850
+Wire Wire Line
+	5500 3700 5500 6200
+Connection ~ 6200 4300
+Connection ~ 4550 3700
+Connection ~ 3100 6950
+Connection ~ 2300 6150
+Connection ~ 3150 6950
+Connection ~ 4650 6100
+Wire Wire Line
+	5500 6200 4650 6200
+Connection ~ 4650 6200
+Connection ~ 5500 4300
+Wire Wire Line
+	8000 3550 7900 3550
+Connection ~ 7900 3550
+Text Label 3650 2750 0    60   ~ 0
+clock
+Text Label 1500 2200 0    60   ~ 0
+polarity
+Text Label 3900 1350 0    60   ~ 0
+Vdd
+Text Label 4550 3700 0    60   ~ 0
+Gnd
+Text Label 7900 3550 2    60   ~ 0
+Out
+Wire Wire Line
+	7800 3950 8000 3950
+Wire Wire Line
+	8000 3950 8000 4300
+Connection ~ 7900 4300
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.sub b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.sub
new file mode 100644
index 000000000..f359cdf7c
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl.sub
@@ -0,0 +1,31 @@
+* Subcircuit TG_D_Latch_ctrl
+.subckt TG_D_Latch_ctrl /clock /polarity /vdd /gnd /out 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/tg_d_latch_ctrl/tg_d_latch_ctrl.cir
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+* s c m o d e
+xsc5 net-_sc10-pad1_ net-_sc1-pad1_ /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc10 net-_sc10-pad1_ /clock /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ /polarity /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc13 net-_sc13-pad1_ net-_sc10-pad1_ /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ /polarity /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc7 net-_sc10-pad1_ net-_sc1-pad1_ net-_sc7-pad3_ net-_sc7-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc9 net-_sc7-pad3_ /clock /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc14 net-_sc13-pad1_ net-_sc10-pad1_ /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc6 net-_sc12-pad1_ net-_sc3-pad1_ /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc12 net-_sc12-pad1_ /polarity /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc3-pad1_ /clock /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc15 net-_sc15-pad1_ net-_sc12-pad1_ /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc4 net-_sc3-pad1_ /clock /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc8 net-_sc12-pad1_ net-_sc3-pad1_ net-_sc11-pad1_ net-_sc11-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc11 net-_sc11-pad1_ /polarity /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc16 net-_sc15-pad1_ net-_sc12-pad1_ /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc18 net-_sc18-pad1_ net-_sc13-pad1_ /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc19 net-_sc17-pad1_ net-_sc15-pad1_ net-_sc18-pad1_ net-_sc18-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc21 /out net-_sc17-pad1_ /vdd /vdd sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc17 net-_sc17-pad1_ net-_sc13-pad1_ /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc20 net-_sc17-pad1_ net-_sc15-pad1_ /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc22 /out net-_sc17-pad1_ /gnd /gnd sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* Control Statements
+
+.ends TG_D_Latch_ctrl
diff --git a/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl_Previous_Values.xml b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl_Previous_Values.xml
new file mode 100644
index 000000000..cb5bd44f4
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/TG_D_Latch_ctrl_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc5><field>w=3 l=0.15</field></sc5><sc10><field>w=3 l=0.15</field></sc10><sc1><field>w=3 l=0.15</field></sc1><sc13><field>w=3 l=0.15</field></sc13><sc2><field>w=1 l=0.15</field></sc2><sc7><field>w=1 l=0.15</field></sc7><sc9><field>w=1 l=0.15</field></sc9><sc14><field>w=1 l=0.15</field></sc14><sc6><field>w=3 l=0.15</field></sc6><sc12><field>w=3 l=0.15</field></sc12><sc3><field>w=3 l=0.15</field></sc3><sc15><field>w=3 l=0.15</field></sc15><sc4><field>w=1 l=0.15</field></sc4><sc8><field>w=1 l=0.15</field></sc8><sc11><field>w=1 l=0.15</field></sc11><sc16><field>w=1 l=0.15</field></sc16><sc18><field>w=3 l=0.15</field></sc18><sc19><field>w=3 l=0.15</field></sc19><sc21><field>w=3 l=0.15</field></sc21><sc17><field>w=1 l=0.15</field></sc17><sc20><field>w=1 l=0.15</field></sc20><sc22><field>w=1 l=0.15</field></sc22></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4042B/analysis b/library/SubcircuitLibrary/CD4042B/analysis
new file mode 100644
index 000000000..ebd5c0a94
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4042B/analysis
@@ -0,0 +1 @@
+.tran 0e-00 0e-00 0e-00
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4044BMS/CD4044BMS-cache.lib b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS-cache.lib
new file mode 100644
index 000000000..d9cac1d73
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS-cache.lib
@@ -0,0 +1,74 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# SR_Latch_with_Enable
+#
+DEF SR_Latch_with_Enable X 0 40 Y Y 1 F N
+F0 "X" 0 -100 60 H V C CNN
+F1 "SR_Latch_with_Enable" 0 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -700 200 700 -250 0 1 0 N
+X Vdd 1 150 400 200 D 50 50 1 1 I
+X E 2 -900 0 200 R 50 50 1 1 I
+X Gnd 3 150 -450 200 U 50 50 1 1 I
+X S 4 -900 100 200 R 50 50 1 1 I
+X R 5 -900 -100 200 R 50 50 1 1 I
+X Q 6 900 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.bak b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.bak
new file mode 100644
index 000000000..9f31ea680
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.bak
@@ -0,0 +1,347 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SR_Latch_with_Enable X1
+U 1 1 684D0CC7
+P 4800 2250
+F 0 "X1" H 4800 2150 60  0000 C CNN
+F 1 "SR_Latch_with_Enable" H 4800 2250 60  0000 C CNN
+F 2 "" H 4800 2250 60  0001 C CNN
+F 3 "" H 4800 2250 60  0001 C CNN
+	1    4800 2250
+	1    0    0    -1  
+$EndComp
+$Comp
+L SR_Latch_with_Enable X3
+U 1 1 684D0D13
+P 4900 3350
+F 0 "X3" H 4900 3250 60  0000 C CNN
+F 1 "SR_Latch_with_Enable" H 4900 3350 60  0000 C CNN
+F 2 "" H 4900 3350 60  0001 C CNN
+F 3 "" H 4900 3350 60  0001 C CNN
+	1    4900 3350
+	1    0    0    -1  
+$EndComp
+$Comp
+L SR_Latch_with_Enable X2
+U 1 1 684D0E52
+P 4800 4400
+F 0 "X2" H 4800 4300 60  0000 C CNN
+F 1 "SR_Latch_with_Enable" H 4800 4400 60  0000 C CNN
+F 2 "" H 4800 4400 60  0001 C CNN
+F 3 "" H 4800 4400 60  0001 C CNN
+	1    4800 4400
+	1    0    0    -1  
+$EndComp
+$Comp
+L SR_Latch_with_Enable X4
+U 1 1 684D0EC6
+P 4900 5450
+F 0 "X4" H 4900 5350 60  0000 C CNN
+F 1 "SR_Latch_with_Enable" H 4900 5450 60  0000 C CNN
+F 2 "" H 4900 5450 60  0001 C CNN
+F 3 "" H 4900 5450 60  0001 C CNN
+	1    4900 5450
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4950 1850 4950 1800
+Wire Wire Line
+	4800 1800 5250 1800
+Wire Wire Line
+	4950 4000 5250 4000
+Wire Wire Line
+	5050 5050 5250 5050
+Wire Wire Line
+	5250 5050 5250 1800
+Wire Wire Line
+	4950 2700 4850 2700
+Wire Wire Line
+	4850 2700 4850 5900
+Wire Wire Line
+	4750 5900 5050 5900
+Wire Wire Line
+	5050 2950 5250 2950
+Connection ~ 5250 2950
+Connection ~ 5250 4000
+Wire Wire Line
+	5050 3800 4850 3800
+Connection ~ 4850 3800
+Wire Wire Line
+	4950 4850 4850 4850
+Connection ~ 4850 4850
+Wire Wire Line
+	3500 2250 3900 2250
+Wire Wire Line
+	3750 2250 3750 5450
+Wire Wire Line
+	3750 5450 4000 5450
+Wire Wire Line
+	4000 3350 3750 3350
+Connection ~ 3750 3350
+Wire Wire Line
+	3900 4400 3750 4400
+Connection ~ 3750 4400
+$Comp
+L PORT U1
+U 1 1 684D11E5
+P 3250 2100
+F 0 "U1" H 3300 2200 30  0000 C CNN
+F 1 "PORT" H 3250 2100 30  0000 C CNN
+F 2 "" H 3250 2100 60  0000 C CNN
+F 3 "" H 3250 2100 60  0000 C CNN
+	1    3250 2100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684D127E
+P 3250 2250
+F 0 "U1" H 3300 2350 30  0000 C CNN
+F 1 "PORT" H 3250 2250 30  0000 C CNN
+F 2 "" H 3250 2250 60  0000 C CNN
+F 3 "" H 3250 2250 60  0000 C CNN
+	2    3250 2250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684D12F5
+P 3250 2400
+F 0 "U1" H 3300 2500 30  0000 C CNN
+F 1 "PORT" H 3250 2400 30  0000 C CNN
+F 2 "" H 3250 2400 60  0000 C CNN
+F 3 "" H 3250 2400 60  0000 C CNN
+	3    3250 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684D137C
+P 3250 3250
+F 0 "U1" H 3300 3350 30  0000 C CNN
+F 1 "PORT" H 3250 3250 30  0000 C CNN
+F 2 "" H 3250 3250 60  0000 C CNN
+F 3 "" H 3250 3250 60  0000 C CNN
+	4    3250 3250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684D13ED
+P 3250 3500
+F 0 "U1" H 3300 3600 30  0000 C CNN
+F 1 "PORT" H 3250 3500 30  0000 C CNN
+F 2 "" H 3250 3500 60  0000 C CNN
+F 3 "" H 3250 3500 60  0000 C CNN
+	5    3250 3500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 684D146A
+P 3250 4300
+F 0 "U1" H 3300 4400 30  0000 C CNN
+F 1 "PORT" H 3250 4300 30  0000 C CNN
+F 2 "" H 3250 4300 60  0000 C CNN
+F 3 "" H 3250 4300 60  0000 C CNN
+	6    3250 4300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 684D14DB
+P 3250 4500
+F 0 "U1" H 3300 4600 30  0000 C CNN
+F 1 "PORT" H 3250 4500 30  0000 C CNN
+F 2 "" H 3250 4500 60  0000 C CNN
+F 3 "" H 3250 4500 60  0000 C CNN
+	7    3250 4500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 8 1 684D1556
+P 3250 5350
+F 0 "U1" H 3300 5450 30  0000 C CNN
+F 1 "PORT" H 3250 5350 30  0000 C CNN
+F 2 "" H 3250 5350 60  0000 C CNN
+F 3 "" H 3250 5350 60  0000 C CNN
+	8    3250 5350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 684D15BD
+P 3250 5550
+F 0 "U1" H 3300 5650 30  0000 C CNN
+F 1 "PORT" H 3250 5550 30  0000 C CNN
+F 2 "" H 3250 5550 60  0000 C CNN
+F 3 "" H 3250 5550 60  0000 C CNN
+	9    3250 5550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 11 1 684D1863
+P 4550 1800
+F 0 "U1" H 4600 1900 30  0000 C CNN
+F 1 "PORT" H 4550 1800 30  0000 C CNN
+F 2 "" H 4550 1800 60  0000 C CNN
+F 3 "" H 4550 1800 60  0000 C CNN
+	11   4550 1800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 684D1972
+P 4500 5900
+F 0 "U1" H 4550 6000 30  0000 C CNN
+F 1 "PORT" H 4500 5900 30  0000 C CNN
+F 2 "" H 4500 5900 60  0000 C CNN
+F 3 "" H 4500 5900 60  0000 C CNN
+	10   4500 5900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 12 1 684D1A91
+P 6050 2250
+F 0 "U1" H 6100 2350 30  0000 C CNN
+F 1 "PORT" H 6050 2250 30  0000 C CNN
+F 2 "" H 6050 2250 60  0000 C CNN
+F 3 "" H 6050 2250 60  0000 C CNN
+	12   6050 2250
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 14 1 684D1B2C
+P 6150 3350
+F 0 "U1" H 6200 3450 30  0000 C CNN
+F 1 "PORT" H 6150 3350 30  0000 C CNN
+F 2 "" H 6150 3350 60  0000 C CNN
+F 3 "" H 6150 3350 60  0000 C CNN
+	14   6150 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 13 1 684D1BE9
+P 6100 4400
+F 0 "U1" H 6150 4500 30  0000 C CNN
+F 1 "PORT" H 6100 4400 30  0000 C CNN
+F 2 "" H 6100 4400 60  0000 C CNN
+F 3 "" H 6100 4400 60  0000 C CNN
+	13   6100 4400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 15 1 684D1C9A
+P 6200 5450
+F 0 "U1" H 6250 5550 30  0000 C CNN
+F 1 "PORT" H 6200 5450 30  0000 C CNN
+F 2 "" H 6200 5450 60  0000 C CNN
+F 3 "" H 6200 5450 60  0000 C CNN
+	15   6200 5450
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	3500 2100 3900 2100
+Wire Wire Line
+	3900 2100 3900 2150
+Connection ~ 3750 2250
+Wire Wire Line
+	3500 2400 3900 2400
+Wire Wire Line
+	3900 2400 3900 2350
+Wire Wire Line
+	3500 3250 4000 3250
+Wire Wire Line
+	3500 3500 4000 3500
+Wire Wire Line
+	4000 3500 4000 3450
+Wire Wire Line
+	3500 4300 3900 4300
+Wire Wire Line
+	3500 4500 3900 4500
+Wire Wire Line
+	3500 5350 4000 5350
+Wire Wire Line
+	3500 5550 4000 5550
+Connection ~ 4850 5900
+Connection ~ 4950 1800
+Wire Wire Line
+	5700 2250 5800 2250
+Wire Wire Line
+	5800 3350 5900 3350
+Wire Wire Line
+	5700 4400 5850 4400
+Wire Wire Line
+	5800 5450 5950 5450
+$Comp
+L SKY130mode scmode1
+U 1 1 684D28ED
+P 9050 3000
+F 0 "scmode1" H 9050 3150 98  0000 C CNB
+F 1 "SKY130mode" H 9050 2900 118 0000 C CNB
+F 2 "" H 9050 3150 60  0001 C CNN
+F 3 "" H 9050 3150 60  0001 C CNN
+	1    9050 3000
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.cir b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.cir
new file mode 100644
index 000000000..9c554bbff
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.cir
@@ -0,0 +1,16 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 14 11:29:04 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad11_ Net-_U1-Pad2_ Net-_U1-Pad10_ Net-_U1-Pad1_ Net-_U1-Pad3_ Net-_U1-Pad12_ SR_Latch_with_Enable		
+X3  Net-_U1-Pad11_ Net-_U1-Pad2_ Net-_U1-Pad10_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad14_ SR_Latch_with_Enable		
+X2  Net-_U1-Pad11_ Net-_U1-Pad2_ Net-_U1-Pad10_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad13_ SR_Latch_with_Enable		
+X4  Net-_U1-Pad11_ Net-_U1-Pad2_ Net-_U1-Pad10_ Net-_U1-Pad8_ Net-_U1-Pad9_ Net-_U1-Pad15_ SR_Latch_with_Enable		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad9_ Net-_U1-Pad10_ Net-_U1-Pad11_ Net-_U1-Pad12_ Net-_U1-Pad13_ Net-_U1-Pad14_ Net-_U1-Pad15_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.cir.out b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.cir.out
new file mode 100644
index 000000000..82478ce73
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.cir.out
@@ -0,0 +1,20 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cd4044bms/cd4044bms.cir
+
+.include SR_Latch_with_Enable.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad11_ net-_u1-pad2_ net-_u1-pad10_ net-_u1-pad1_ net-_u1-pad3_ net-_u1-pad12_ SR_Latch_with_Enable
+x3 net-_u1-pad11_ net-_u1-pad2_ net-_u1-pad10_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad14_ SR_Latch_with_Enable
+x2 net-_u1-pad11_ net-_u1-pad2_ net-_u1-pad10_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad13_ SR_Latch_with_Enable
+x4 net-_u1-pad11_ net-_u1-pad2_ net-_u1-pad10_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad15_ SR_Latch_with_Enable
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.pro b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.sch b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.sch
new file mode 100644
index 000000000..0ffe75c0f
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.sch
@@ -0,0 +1,348 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:CD4044BMS-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SR_Latch_with_Enable X1
+U 1 1 684D0CC7
+P 4800 2250
+F 0 "X1" H 4800 2150 60  0000 C CNN
+F 1 "SR_Latch_with_Enable" H 4800 2250 60  0000 C CNN
+F 2 "" H 4800 2250 60  0001 C CNN
+F 3 "" H 4800 2250 60  0001 C CNN
+	1    4800 2250
+	1    0    0    -1  
+$EndComp
+$Comp
+L SR_Latch_with_Enable X3
+U 1 1 684D0D13
+P 4900 3350
+F 0 "X3" H 4900 3250 60  0000 C CNN
+F 1 "SR_Latch_with_Enable" H 4900 3350 60  0000 C CNN
+F 2 "" H 4900 3350 60  0001 C CNN
+F 3 "" H 4900 3350 60  0001 C CNN
+	1    4900 3350
+	1    0    0    -1  
+$EndComp
+$Comp
+L SR_Latch_with_Enable X2
+U 1 1 684D0E52
+P 4800 4400
+F 0 "X2" H 4800 4300 60  0000 C CNN
+F 1 "SR_Latch_with_Enable" H 4800 4400 60  0000 C CNN
+F 2 "" H 4800 4400 60  0001 C CNN
+F 3 "" H 4800 4400 60  0001 C CNN
+	1    4800 4400
+	1    0    0    -1  
+$EndComp
+$Comp
+L SR_Latch_with_Enable X4
+U 1 1 684D0EC6
+P 4900 5450
+F 0 "X4" H 4900 5350 60  0000 C CNN
+F 1 "SR_Latch_with_Enable" H 4900 5450 60  0000 C CNN
+F 2 "" H 4900 5450 60  0001 C CNN
+F 3 "" H 4900 5450 60  0001 C CNN
+	1    4900 5450
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4950 1850 4950 1800
+Wire Wire Line
+	4800 1800 5250 1800
+Wire Wire Line
+	4950 4000 5250 4000
+Wire Wire Line
+	5050 5050 5250 5050
+Wire Wire Line
+	5250 5050 5250 1800
+Wire Wire Line
+	4950 2700 4850 2700
+Wire Wire Line
+	4850 2700 4850 5900
+Wire Wire Line
+	4750 5900 5050 5900
+Wire Wire Line
+	5050 2950 5250 2950
+Connection ~ 5250 2950
+Connection ~ 5250 4000
+Wire Wire Line
+	5050 3800 4850 3800
+Connection ~ 4850 3800
+Wire Wire Line
+	4950 4850 4850 4850
+Connection ~ 4850 4850
+Wire Wire Line
+	3500 2250 3900 2250
+Wire Wire Line
+	3750 2250 3750 5450
+Wire Wire Line
+	3750 5450 4000 5450
+Wire Wire Line
+	4000 3350 3750 3350
+Connection ~ 3750 3350
+Wire Wire Line
+	3900 4400 3750 4400
+Connection ~ 3750 4400
+$Comp
+L PORT U1
+U 1 1 684D11E5
+P 3250 2100
+F 0 "U1" H 3300 2200 30  0000 C CNN
+F 1 "PORT" H 3250 2100 30  0000 C CNN
+F 2 "" H 3250 2100 60  0000 C CNN
+F 3 "" H 3250 2100 60  0000 C CNN
+	1    3250 2100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684D127E
+P 3250 2250
+F 0 "U1" H 3300 2350 30  0000 C CNN
+F 1 "PORT" H 3250 2250 30  0000 C CNN
+F 2 "" H 3250 2250 60  0000 C CNN
+F 3 "" H 3250 2250 60  0000 C CNN
+	2    3250 2250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684D12F5
+P 3250 2400
+F 0 "U1" H 3300 2500 30  0000 C CNN
+F 1 "PORT" H 3250 2400 30  0000 C CNN
+F 2 "" H 3250 2400 60  0000 C CNN
+F 3 "" H 3250 2400 60  0000 C CNN
+	3    3250 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684D137C
+P 3250 3250
+F 0 "U1" H 3300 3350 30  0000 C CNN
+F 1 "PORT" H 3250 3250 30  0000 C CNN
+F 2 "" H 3250 3250 60  0000 C CNN
+F 3 "" H 3250 3250 60  0000 C CNN
+	4    3250 3250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684D13ED
+P 3250 3500
+F 0 "U1" H 3300 3600 30  0000 C CNN
+F 1 "PORT" H 3250 3500 30  0000 C CNN
+F 2 "" H 3250 3500 60  0000 C CNN
+F 3 "" H 3250 3500 60  0000 C CNN
+	5    3250 3500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 684D146A
+P 3250 4300
+F 0 "U1" H 3300 4400 30  0000 C CNN
+F 1 "PORT" H 3250 4300 30  0000 C CNN
+F 2 "" H 3250 4300 60  0000 C CNN
+F 3 "" H 3250 4300 60  0000 C CNN
+	6    3250 4300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 684D14DB
+P 3250 4500
+F 0 "U1" H 3300 4600 30  0000 C CNN
+F 1 "PORT" H 3250 4500 30  0000 C CNN
+F 2 "" H 3250 4500 60  0000 C CNN
+F 3 "" H 3250 4500 60  0000 C CNN
+	7    3250 4500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 8 1 684D1556
+P 3250 5350
+F 0 "U1" H 3300 5450 30  0000 C CNN
+F 1 "PORT" H 3250 5350 30  0000 C CNN
+F 2 "" H 3250 5350 60  0000 C CNN
+F 3 "" H 3250 5350 60  0000 C CNN
+	8    3250 5350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 684D15BD
+P 3250 5550
+F 0 "U1" H 3300 5650 30  0000 C CNN
+F 1 "PORT" H 3250 5550 30  0000 C CNN
+F 2 "" H 3250 5550 60  0000 C CNN
+F 3 "" H 3250 5550 60  0000 C CNN
+	9    3250 5550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 11 1 684D1863
+P 4550 1800
+F 0 "U1" H 4600 1900 30  0000 C CNN
+F 1 "PORT" H 4550 1800 30  0000 C CNN
+F 2 "" H 4550 1800 60  0000 C CNN
+F 3 "" H 4550 1800 60  0000 C CNN
+	11   4550 1800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 684D1972
+P 4500 5900
+F 0 "U1" H 4550 6000 30  0000 C CNN
+F 1 "PORT" H 4500 5900 30  0000 C CNN
+F 2 "" H 4500 5900 60  0000 C CNN
+F 3 "" H 4500 5900 60  0000 C CNN
+	10   4500 5900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 12 1 684D1A91
+P 6050 2250
+F 0 "U1" H 6100 2350 30  0000 C CNN
+F 1 "PORT" H 6050 2250 30  0000 C CNN
+F 2 "" H 6050 2250 60  0000 C CNN
+F 3 "" H 6050 2250 60  0000 C CNN
+	12   6050 2250
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 14 1 684D1B2C
+P 6150 3350
+F 0 "U1" H 6200 3450 30  0000 C CNN
+F 1 "PORT" H 6150 3350 30  0000 C CNN
+F 2 "" H 6150 3350 60  0000 C CNN
+F 3 "" H 6150 3350 60  0000 C CNN
+	14   6150 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 13 1 684D1BE9
+P 6100 4400
+F 0 "U1" H 6150 4500 30  0000 C CNN
+F 1 "PORT" H 6100 4400 30  0000 C CNN
+F 2 "" H 6100 4400 60  0000 C CNN
+F 3 "" H 6100 4400 60  0000 C CNN
+	13   6100 4400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 15 1 684D1C9A
+P 6200 5450
+F 0 "U1" H 6250 5550 30  0000 C CNN
+F 1 "PORT" H 6200 5450 30  0000 C CNN
+F 2 "" H 6200 5450 60  0000 C CNN
+F 3 "" H 6200 5450 60  0000 C CNN
+	15   6200 5450
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	3500 2100 3900 2100
+Wire Wire Line
+	3900 2100 3900 2150
+Connection ~ 3750 2250
+Wire Wire Line
+	3500 2400 3900 2400
+Wire Wire Line
+	3900 2400 3900 2350
+Wire Wire Line
+	3500 3250 4000 3250
+Wire Wire Line
+	3500 3500 4000 3500
+Wire Wire Line
+	4000 3500 4000 3450
+Wire Wire Line
+	3500 4300 3900 4300
+Wire Wire Line
+	3500 4500 3900 4500
+Wire Wire Line
+	3500 5350 4000 5350
+Wire Wire Line
+	3500 5550 4000 5550
+Connection ~ 4850 5900
+Connection ~ 4950 1800
+Wire Wire Line
+	5700 2250 5800 2250
+Wire Wire Line
+	5800 3350 5900 3350
+Wire Wire Line
+	5700 4400 5850 4400
+Wire Wire Line
+	5800 5450 5950 5450
+$Comp
+L SKY130mode scmode1
+U 1 1 684D28ED
+P 6950 3850
+F 0 "scmode1" H 6950 4000 98  0000 C CNB
+F 1 "SKY130mode" H 6950 3750 118 0000 C CNB
+F 2 "" H 6950 4000 60  0001 C CNN
+F 3 "" H 6950 4000 60  0001 C CNN
+	1    6950 3850
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.sub b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.sub
new file mode 100644
index 000000000..a7ff0dd0d
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS.sub
@@ -0,0 +1,14 @@
+* Subcircuit CD4044BMS
+.subckt CD4044BMS net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cd4044bms/cd4044bms.cir
+.include SR_Latch_with_Enable.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad11_ net-_u1-pad2_ net-_u1-pad10_ net-_u1-pad1_ net-_u1-pad3_ net-_u1-pad12_ SR_Latch_with_Enable
+x3 net-_u1-pad11_ net-_u1-pad2_ net-_u1-pad10_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad14_ SR_Latch_with_Enable
+x2 net-_u1-pad11_ net-_u1-pad2_ net-_u1-pad10_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad13_ SR_Latch_with_Enable
+x4 net-_u1-pad11_ net-_u1-pad2_ net-_u1-pad10_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad15_ SR_Latch_with_Enable
+* s c m o d e
+* Control Statements
+
+.ends CD4044BMS
diff --git a/library/SubcircuitLibrary/CD4044BMS/CD4044BMS_Previous_Values.xml b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS_Previous_Values.xml
new file mode 100644
index 000000000..4e264fc18
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CD4044BMS_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SR_Latch_with_Enable</field></x1><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SR_Latch_with_Enable</field></x3><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SR_Latch_with_Enable</field></x2><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SR_Latch_with_Enable</field></x4></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR-cache.lib b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.cir b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.cir
new file mode 100644
index 000000000..d2199ddbb
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR/CMOS_INVTR.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Fri Jun 13 08:49:20 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.cir.out b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.cir.out
new file mode 100644
index 000000000..dec1c5fa5
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_invtr/cmos_invtr.cir
+
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.pro b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.sch b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.sch
new file mode 100644
index 000000000..aa7a7ee81
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.sch
@@ -0,0 +1,161 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 684B982F
+P 5350 2950
+F 0 "SC1" H 5400 3250 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5650 3037 50  0000 R CNN
+F 2 "" H 5350 1450 50  0001 C CNN
+F 3 "" H 5350 2950 50  0001 C CNN
+	1    5350 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684B9856
+P 5350 3800
+F 0 "SC2" H 5400 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5650 3887 50  0000 R CNN
+F 2 "" H 5350 2300 50  0001 C CNN
+F 3 "" H 5350 3800 50  0001 C CNN
+	1    5350 3800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684B98AD
+P 4550 3300
+F 0 "U1" H 4600 3400 30  0000 C CNN
+F 1 "PORT" H 4550 3300 30  0000 C CNN
+F 2 "" H 4550 3300 60  0000 C CNN
+F 3 "" H 4550 3300 60  0000 C CNN
+	1    4550 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684B98D8
+P 6300 3350
+F 0 "U1" H 6350 3450 30  0000 C CNN
+F 1 "PORT" H 6300 3350 30  0000 C CNN
+F 2 "" H 6300 3350 60  0000 C CNN
+F 3 "" H 6300 3350 60  0000 C CNN
+	4    6300 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684B9935
+P 5300 4350
+F 0 "U1" H 5350 4450 30  0000 C CNN
+F 1 "PORT" H 5300 4350 30  0000 C CNN
+F 2 "" H 5300 4350 60  0000 C CNN
+F 3 "" H 5300 4350 60  0000 C CNN
+	3    5300 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684B999A
+P 5300 2350
+F 0 "U1" H 5350 2450 30  0000 C CNN
+F 1 "PORT" H 5300 2350 30  0000 C CNN
+F 2 "" H 5300 2350 60  0000 C CNN
+F 3 "" H 5300 2350 60  0000 C CNN
+	2    5300 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684B99CD
+P 7950 3000
+F 0 "scmode1" H 7950 3150 98  0000 C CNB
+F 1 "SKY130mode" H 7950 2900 118 0000 C CNB
+F 2 "" H 7950 3150 60  0001 C CNN
+F 3 "" H 7950 3150 60  0001 C CNN
+	1    7950 3000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5550 2650 5550 2350
+Wire Wire Line
+	5450 2950 5600 2950
+Wire Wire Line
+	5600 2950 5600 2550
+Wire Wire Line
+	5600 2550 5550 2550
+Connection ~ 5550 2550
+Wire Wire Line
+	5550 3250 5550 3500
+Wire Wire Line
+	6050 3350 5550 3350
+Connection ~ 5550 3350
+Wire Wire Line
+	5050 2950 5050 3800
+Wire Wire Line
+	4800 3300 5050 3300
+Connection ~ 5050 3300
+Wire Wire Line
+	5450 3800 5600 3800
+Wire Wire Line
+	5600 3800 5600 4150
+Wire Wire Line
+	5600 4150 5550 4150
+Wire Wire Line
+	5550 4100 5550 4350
+Connection ~ 5550 4150
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.sub b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.sub
new file mode 100644
index 000000000..8283bca86
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR.sub
@@ -0,0 +1,11 @@
+* Subcircuit CMOS_INVTR
+.subckt CMOS_INVTR net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_invtr/cmos_invtr.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends CMOS_INVTR
diff --git a/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR_Previous_Values.xml b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR_Previous_Values.xml
new file mode 100644
index 000000000..d17c4f93e
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/CMOS_INVTR_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3, l=0.15</field></sc1><sc2><field>w=1, l=0.15</field></sc2></devicemodel><subcircuit /></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_2-cache.lib b/library/SubcircuitLibrary/CD4044BMS/NAND_2-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_2-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_2.bak b/library/SubcircuitLibrary/CD4044BMS/NAND_2.bak
new file mode 100644
index 000000000..ad9819396
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_2.bak
@@ -0,0 +1,221 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 684AF0E9
+P 4750 2050
+F 0 "SC2" H 4800 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5050 2137 50  0000 R CNN
+F 2 "" H 4750 550 50  0001 C CNN
+F 3 "" H 4750 2050 50  0001 C CNN
+	1    4750 2050
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684AF14C
+P 5150 2750
+F 0 "SC3" H 5200 3050 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5450 2837 50  0000 R CNN
+F 2 "" H 5150 1250 50  0001 C CNN
+F 3 "" H 5150 2750 50  0001 C CNN
+	1    5150 2750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF1CF
+P 4200 3600
+F 0 "SC1" H 4250 3900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4500 3687 50  0000 R CNN
+F 2 "" H 4200 2100 50  0001 C CNN
+F 3 "" H 4200 3600 50  0001 C CNN
+	1    4200 3600
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 684AF20C
+P 5550 3600
+F 0 "SC4" H 5600 3900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5850 3687 50  0000 R CNN
+F 2 "" H 5550 2100 50  0001 C CNN
+F 3 "" H 5550 3600 50  0001 C CNN
+	1    5550 3600
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF271
+P 4650 1550
+F 0 "U1" H 4700 1650 30  0000 C CNN
+F 1 "PORT" H 4650 1550 30  0000 C CNN
+F 2 "" H 4650 1550 60  0000 C CNN
+F 3 "" H 4650 1550 60  0000 C CNN
+	3    4650 1550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF336
+P 3550 2650
+F 0 "U1" H 3600 2750 30  0000 C CNN
+F 1 "PORT" H 3550 2650 30  0000 C CNN
+F 2 "" H 3550 2650 60  0000 C CNN
+F 3 "" H 3550 2650 60  0000 C CNN
+	1    3550 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AF413
+P 6200 2750
+F 0 "U1" H 6250 2850 30  0000 C CNN
+F 1 "PORT" H 6200 2750 30  0000 C CNN
+F 2 "" H 6200 2750 60  0000 C CNN
+F 3 "" H 6200 2750 60  0000 C CNN
+	4    6200 2750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF82C
+P 6200 3150
+F 0 "U1" H 6250 3250 30  0000 C CNN
+F 1 "PORT" H 6200 3150 30  0000 C CNN
+F 2 "" H 6200 3150 60  0000 C CNN
+F 3 "" H 6200 3150 60  0000 C CNN
+	5    6200 3150
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF895
+P 4550 4050
+F 0 "U1" H 4600 4150 30  0000 C CNN
+F 1 "PORT" H 4550 4050 30  0000 C CNN
+F 2 "" H 4550 4050 60  0000 C CNN
+F 3 "" H 4550 4050 60  0000 C CNN
+	2    4550 4050
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4400 3900 5350 3900
+Wire Wire Line
+	4800 4050 4800 3900
+Connection ~ 4800 3900
+Wire Wire Line
+	4300 3600 4450 3600
+Wire Wire Line
+	4450 3600 4450 3900
+Connection ~ 4450 3900
+Wire Wire Line
+	5450 3600 5300 3600
+Wire Wire Line
+	5300 3600 5300 3900
+Connection ~ 5300 3900
+Wire Wire Line
+	4400 3300 5350 3300
+Wire Wire Line
+	4950 3050 4950 3300
+Connection ~ 4950 3300
+Wire Wire Line
+	5950 3150 4950 3150
+Connection ~ 4950 3150
+Wire Wire Line
+	5450 2750 5950 2750
+Wire Wire Line
+	5850 2750 5850 3600
+Wire Wire Line
+	5050 2750 4900 2750
+Wire Wire Line
+	4900 2750 4900 2400
+Wire Wire Line
+	4900 2400 4950 2400
+Wire Wire Line
+	4950 2350 4950 2450
+Connection ~ 4950 2400
+Wire Wire Line
+	4450 2050 3900 2050
+Wire Wire Line
+	3900 2050 3900 3600
+Wire Wire Line
+	3800 2650 3900 2650
+Connection ~ 3900 2650
+Connection ~ 5850 2750
+Wire Wire Line
+	4850 2050 5000 2050
+Wire Wire Line
+	5000 2050 5000 1650
+Wire Wire Line
+	5000 1650 4950 1650
+Wire Wire Line
+	4950 1550 4950 1750
+Wire Wire Line
+	4900 1550 4950 1550
+Connection ~ 4950 1650
+$Comp
+L SKY130mode scmode1
+U 1 1 684AFD6B
+P 7350 2150
+F 0 "scmode1" H 7350 2300 98  0000 C CNB
+F 1 "SKY130mode" H 7350 2050 118 0000 C CNB
+F 2 "" H 7350 2300 60  0001 C CNN
+F 3 "" H 7350 2300 60  0001 C CNN
+	1    7350 2150
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_2.cir b/library/SubcircuitLibrary/CD4044BMS/NAND_2.cir
new file mode 100644
index 000000000..1fa1e05e8
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_2.cir
@@ -0,0 +1,16 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2/NAND_2.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 14 09:19:59 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__pfet_01v8		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC1-Pad3_ Net-_SC3-Pad2_ Net-_SC4-Pad3_ Net-_SC4-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC4-Pad3_ Net-_SC2-Pad3_ Net-_SC1-Pad1_ Net-_SC3-Pad2_ PORT		
+scmode1  SKY130mode		
+SC3  Net-_SC1-Pad1_ Net-_SC3-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__pfet_01v8		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_2.cir.out b/library/SubcircuitLibrary/CD4044BMS/NAND_2.cir.out
new file mode 100644
index 000000000..079b2d2c2
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_2.cir.out
@@ -0,0 +1,19 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_2/nand_2.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad3_ net-_sc3-pad2_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc4-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ net-_sc3-pad2_ port
+* s c m o d e
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_2.pro b/library/SubcircuitLibrary/CD4044BMS/NAND_2.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_2.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_2.sch b/library/SubcircuitLibrary/CD4044BMS/NAND_2.sch
new file mode 100644
index 000000000..ebef1d4c6
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_2.sch
@@ -0,0 +1,222 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:NAND_2-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 684AF0E9
+P 4200 2050
+F 0 "SC2" H 4250 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4500 2137 50  0000 R CNN
+F 2 "" H 4200 550 50  0001 C CNN
+F 3 "" H 4200 2050 50  0001 C CNN
+	1    4200 2050
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF1CF
+P 4450 2850
+F 0 "SC1" H 4500 3150 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4750 2937 50  0000 R CNN
+F 2 "" H 4450 1350 50  0001 C CNN
+F 3 "" H 4450 2850 50  0001 C CNN
+	1    4450 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 684AF20C
+P 4850 3550
+F 0 "SC4" H 4900 3850 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5150 3637 50  0000 R CNN
+F 2 "" H 4850 2050 50  0001 C CNN
+F 3 "" H 4850 3550 50  0001 C CNN
+	1    4850 3550
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF271
+P 4350 1550
+F 0 "U1" H 4400 1650 30  0000 C CNN
+F 1 "PORT" H 4350 1550 30  0000 C CNN
+F 2 "" H 4350 1550 60  0000 C CNN
+F 3 "" H 4350 1550 60  0000 C CNN
+	3    4350 1550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF336
+P 3550 2650
+F 0 "U1" H 3600 2750 30  0000 C CNN
+F 1 "PORT" H 3550 2650 30  0000 C CNN
+F 2 "" H 3550 2650 60  0000 C CNN
+F 3 "" H 3550 2650 60  0000 C CNN
+	1    3550 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AF413
+P 5750 2450
+F 0 "U1" H 5800 2550 30  0000 C CNN
+F 1 "PORT" H 5750 2450 30  0000 C CNN
+F 2 "" H 5750 2450 60  0000 C CNN
+F 3 "" H 5750 2450 60  0000 C CNN
+	4    5750 2450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF82C
+P 5750 3300
+F 0 "U1" H 5800 3400 30  0000 C CNN
+F 1 "PORT" H 5750 3300 30  0000 C CNN
+F 2 "" H 5750 3300 60  0000 C CNN
+F 3 "" H 5750 3300 60  0000 C CNN
+	5    5750 3300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF895
+P 4400 4000
+F 0 "U1" H 4450 4100 30  0000 C CNN
+F 1 "PORT" H 4400 4000 30  0000 C CNN
+F 2 "" H 4400 4000 60  0000 C CNN
+F 3 "" H 4400 4000 60  0000 C CNN
+	2    4400 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684AFD6B
+P 7350 2150
+F 0 "scmode1" H 7350 2300 98  0000 C CNB
+F 1 "SKY130mode" H 7350 2050 118 0000 C CNB
+F 2 "" H 7350 2300 60  0001 C CNN
+F 3 "" H 7350 2300 60  0001 C CNN
+	1    7350 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684CF41D
+P 5000 2050
+F 0 "SC3" H 5050 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5300 2137 50  0000 R CNN
+F 2 "" H 5000 550 50  0001 C CNN
+F 3 "" H 5000 2050 50  0001 C CNN
+	1    5000 2050
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4400 1750 4800 1750
+Wire Wire Line
+	4600 1550 4600 1750
+Connection ~ 4600 1750
+Wire Wire Line
+	4300 2050 4450 2050
+Wire Wire Line
+	4450 2050 4450 1750
+Connection ~ 4450 1750
+Wire Wire Line
+	4900 2050 4750 2050
+Wire Wire Line
+	4750 2050 4750 1750
+Connection ~ 4750 1750
+Wire Wire Line
+	4400 2350 4800 2350
+Wire Wire Line
+	4650 2550 4650 2350
+Connection ~ 4650 2350
+Wire Wire Line
+	5500 2450 4650 2450
+Connection ~ 4650 2450
+Wire Wire Line
+	3900 2050 3900 2850
+Wire Wire Line
+	3900 2850 4150 2850
+Wire Wire Line
+	3800 2650 3900 2650
+Connection ~ 3900 2650
+Wire Wire Line
+	5300 2050 5300 3550
+Wire Wire Line
+	5300 3550 5150 3550
+Wire Wire Line
+	5500 3300 5300 3300
+Connection ~ 5300 3300
+Wire Wire Line
+	4550 2850 4700 2850
+Wire Wire Line
+	4700 2850 4700 3200
+Wire Wire Line
+	4700 3200 4650 3200
+Wire Wire Line
+	4650 3150 4650 3250
+Connection ~ 4650 3200
+Wire Wire Line
+	4650 3850 4650 4000
+Wire Wire Line
+	4750 3550 4600 3550
+Wire Wire Line
+	4600 3550 4600 3900
+Wire Wire Line
+	4600 3900 4650 3900
+Connection ~ 4650 3900
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_2.sub b/library/SubcircuitLibrary/CD4044BMS/NAND_2.sub
new file mode 100644
index 000000000..47d0bd150
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_2.sub
@@ -0,0 +1,13 @@
+* Subcircuit NAND_2
+.subckt NAND_2 net-_sc1-pad2_ net-_sc4-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ net-_sc3-pad2_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_2/nand_2.cir
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad3_ net-_sc3-pad2_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+* Control Statements
+
+.ends NAND_2
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_2_Previous_Values.xml b/library/SubcircuitLibrary/CD4044BMS/NAND_2_Previous_Values.xml
new file mode 100644
index 000000000..066d43a60
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_2_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc2><field>w=3 l=0.15</field></sc2><sc1><field>w=1 l=0.15</field></sc1><sc4><field>w=1 l=0.15</field></sc4><sc3><field>w=3 l=0.15</field></sc3></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_Latch-cache.lib b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch-cache.lib
new file mode 100644
index 000000000..b11550ee7
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch-cache.lib
@@ -0,0 +1,95 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 100 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 550 0 50 0 1 0 N
+P 2 0 1 0 -450 250 500 0 N
+P 3 0 1 0 -450 250 -450 -250 500 0 N
+X IN 1 -650 0 200 R 50 50 1 1 I
+X VDD 2 -650 150 200 R 50 50 1 1 I
+X GND 3 -650 -150 200 R 50 50 1 1 I
+X OUT 4 800 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NOR_2
+#
+DEF NOR_2 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "NOR_2" 250 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A -350 0 269 682 -682 0 1 0 N -250 250 -250 -250
+A 250 0 255 787 -787 0 1 0 N 300 250 300 -250
+C 550 0 50 0 1 0 N
+P 2 0 1 0 -250 -250 300 -250 N
+P 2 0 1 0 -250 250 300 250 N
+X inA 1 -350 150 200 R 50 50 1 1 I
+X Gnd 2 100 -450 200 U 50 50 1 1 I
+X Vdd 3 100 450 200 D 50 50 1 1 I
+X inB 4 -350 -150 200 R 50 50 1 1 I
+X Out 5 800 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.cir b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.cir
new file mode 100644
index 000000000..94ba828a9
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.cir
@@ -0,0 +1,16 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_Latch/NAND_Latch.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 14 10:44:18 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad1_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_X1-Pad4_ CMOS_INVTR		
+X2  Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_X2-Pad4_ CMOS_INVTR		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ PORT		
+X3  Net-_X1-Pad4_ Net-_U1-Pad4_ Net-_U1-Pad3_ Net-_U1-Pad5_ Net-_X3-Pad5_ NOR_2		
+X4  Net-_X2-Pad4_ Net-_U1-Pad4_ Net-_U1-Pad3_ Net-_X3-Pad5_ Net-_U1-Pad5_ NOR_2		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.cir.out b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.cir.out
new file mode 100644
index 000000000..f6273ea71
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.cir.out
@@ -0,0 +1,21 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_latch/nand_latch.cir
+
+.include CMOS_INVTR.sub
+.include NOR_2.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad1_ net-_u1-pad3_ net-_u1-pad4_ net-_x1-pad4_ CMOS_INVTR
+x2 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_x2-pad4_ CMOS_INVTR
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ port
+x3 net-_x1-pad4_ net-_u1-pad4_ net-_u1-pad3_ net-_u1-pad5_ net-_x3-pad5_ NOR_2
+x4 net-_x2-pad4_ net-_u1-pad4_ net-_u1-pad3_ net-_x3-pad5_ net-_u1-pad5_ NOR_2
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.pro b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.sch b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.sch
new file mode 100644
index 000000000..3fec24072
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.sch
@@ -0,0 +1,227 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L CMOS_INVTR X1
+U 1 1 684D03CB
+P 2950 1900
+F 0 "X1" H 2950 1900 60  0000 C CNN
+F 1 "CMOS_INVTR" H 3050 1650 60  0000 C CNN
+F 2 "" H 2950 1900 60  0001 C CNN
+F 3 "" H 2950 1900 60  0001 C CNN
+	1    2950 1900
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 684D041E
+P 2950 3450
+F 0 "X2" H 2950 3450 60  0000 C CNN
+F 1 "CMOS_INVTR" H 3050 3200 60  0000 C CNN
+F 2 "" H 2950 3450 60  0001 C CNN
+F 3 "" H 2950 3450 60  0001 C CNN
+	1    2950 3450
+	1    0    0    1   
+$EndComp
+Wire Wire Line
+	3750 1900 4650 1900
+Wire Wire Line
+	3750 3450 4600 3450
+Wire Wire Line
+	4450 2100 4650 2100
+Wire Wire Line
+	4450 2100 4450 2650
+Wire Wire Line
+	4450 2650 6200 2650
+Wire Wire Line
+	6200 2650 6200 3350
+Wire Wire Line
+	5800 3350 6500 3350
+Wire Wire Line
+	4600 2750 6050 2750
+Wire Wire Line
+	6050 2750 6050 2000
+Wire Wire Line
+	5100 2450 5100 2900
+Wire Wire Line
+	2300 1750 2300 1550
+Wire Wire Line
+	2250 1550 5100 1550
+Wire Wire Line
+	2300 2050 2300 3300
+Wire Wire Line
+	5100 2700 2300 2700
+Connection ~ 2300 2700
+Connection ~ 5100 2700
+Wire Wire Line
+	2300 3600 2300 3800
+Wire Wire Line
+	2300 3800 5100 3800
+Wire Wire Line
+	4300 3800 4300 1550
+Connection ~ 4300 1550
+Connection ~ 4300 3800
+Wire Wire Line
+	2300 1900 2050 1900
+Wire Wire Line
+	2300 3450 2050 3450
+Connection ~ 6200 3350
+$Comp
+L PORT U1
+U 3 1 684D08A2
+P 2000 1550
+F 0 "U1" H 2050 1650 30  0000 C CNN
+F 1 "PORT" H 2000 1550 30  0000 C CNN
+F 2 "" H 2000 1550 60  0000 C CNN
+F 3 "" H 2000 1550 60  0000 C CNN
+	3    2000 1550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684D0939
+P 1800 1900
+F 0 "U1" H 1850 2000 30  0000 C CNN
+F 1 "PORT" H 1800 1900 30  0000 C CNN
+F 2 "" H 1800 1900 60  0000 C CNN
+F 3 "" H 1800 1900 60  0000 C CNN
+	1    1800 1900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684D09DE
+P 1800 3450
+F 0 "U1" H 1850 3550 30  0000 C CNN
+F 1 "PORT" H 1800 3450 30  0000 C CNN
+F 2 "" H 1800 3450 60  0000 C CNN
+F 3 "" H 1800 3450 60  0000 C CNN
+	2    1800 3450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684D0A71
+P 3150 2800
+F 0 "U1" H 3200 2900 30  0000 C CNN
+F 1 "PORT" H 3150 2800 30  0000 C CNN
+F 2 "" H 3150 2800 60  0000 C CNN
+F 3 "" H 3150 2800 60  0000 C CNN
+	4    3150 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684D0B22
+P 6750 3350
+F 0 "U1" H 6800 3450 30  0000 C CNN
+F 1 "PORT" H 6750 3350 30  0000 C CNN
+F 2 "" H 6750 3350 60  0000 C CNN
+F 3 "" H 6750 3350 60  0000 C CNN
+	5    6750 3350
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	3400 2800 3400 2700
+Connection ~ 3400 2700
+Connection ~ 2300 1550
+$Comp
+L NOR_2 X3
+U 1 1 684D0C9D
+P 5000 2000
+F 0 "X3" H 5000 2000 60  0000 C CNN
+F 1 "NOR_2" H 5250 2000 60  0000 C CNN
+F 2 "" H 5000 2000 60  0001 C CNN
+F 3 "" H 5000 2000 60  0001 C CNN
+	1    5000 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L NOR_2 X4
+U 1 1 684D0CE7
+P 5000 3350
+F 0 "X4" H 5000 3350 60  0000 C CNN
+F 1 "NOR_2" H 5250 3350 60  0000 C CNN
+F 2 "" H 5000 3350 60  0001 C CNN
+F 3 "" H 5000 3350 60  0001 C CNN
+	1    5000 3350
+	1    0    0    1   
+$EndComp
+Wire Wire Line
+	6050 2000 5800 2000
+Wire Wire Line
+	4600 3450 4600 3500
+Wire Wire Line
+	4600 3500 4650 3500
+Wire Wire Line
+	4600 3200 4650 3200
+Wire Wire Line
+	4600 3200 4600 2750
+Wire Wire Line
+	4650 1900 4650 1850
+Wire Wire Line
+	4650 2100 4650 2150
+$Comp
+L SKY130mode scmode1
+U 1 1 684D1002
+P 7050 1900
+F 0 "scmode1" H 7050 2050 98  0000 C CNB
+F 1 "SKY130mode" H 7050 1800 118 0000 C CNB
+F 2 "" H 7050 2050 60  0001 C CNN
+F 3 "" H 7050 2050 60  0001 C CNN
+	1    7050 1900
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.sub b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.sub
new file mode 100644
index 000000000..e74e79ca2
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch.sub
@@ -0,0 +1,15 @@
+* Subcircuit NAND_Latch
+.subckt NAND_Latch net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_latch/nand_latch.cir
+.include CMOS_INVTR.sub
+.include NOR_2.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad1_ net-_u1-pad3_ net-_u1-pad4_ net-_x1-pad4_ CMOS_INVTR
+x2 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_x2-pad4_ CMOS_INVTR
+x3 net-_x1-pad4_ net-_u1-pad4_ net-_u1-pad3_ net-_u1-pad5_ net-_x3-pad5_ NOR_2
+x4 net-_x2-pad4_ net-_u1-pad4_ net-_u1-pad3_ net-_x3-pad5_ net-_u1-pad5_ NOR_2
+* s c m o d e
+* Control Statements
+
+.ends NAND_Latch
diff --git a/library/SubcircuitLibrary/CD4044BMS/NAND_Latch_Previous_Values.xml b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch_Previous_Values.xml
new file mode 100644
index 000000000..e72df0e2c
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NAND_Latch_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x2><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NOR_2</field></x3><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NOR_2</field></x4></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4044BMS/NOR_2-cache.lib b/library/SubcircuitLibrary/CD4044BMS/NOR_2-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NOR_2-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4044BMS/NOR_2.cir b/library/SubcircuitLibrary/CD4044BMS/NOR_2.cir
new file mode 100644
index 000000000..da83808c0
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NOR_2.cir
@@ -0,0 +1,16 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NOR_2/NOR_2.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 14 08:53:12 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC2  Net-_SC2-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__pfet_01v8		
+SC3  Net-_SC1-Pad1_ Net-_SC3-Pad2_ Net-_SC2-Pad1_ Net-_SC2-Pad1_ sky130_fd_pr__pfet_01v8		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC1-Pad1_ Net-_SC3-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC3-Pad2_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4044BMS/NOR_2.cir.out b/library/SubcircuitLibrary/CD4044BMS/NOR_2.cir.out
new file mode 100644
index 000000000..4326af445
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NOR_2.cir.out
@@ -0,0 +1,19 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nor_2/nor_2.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc2 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad1_ net-_sc2-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc3-pad2_ net-_sc1-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4044BMS/NOR_2.pro b/library/SubcircuitLibrary/CD4044BMS/NOR_2.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NOR_2.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4044BMS/NOR_2.sch b/library/SubcircuitLibrary/CD4044BMS/NOR_2.sch
new file mode 100644
index 000000000..86f7c4bc6
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NOR_2.sch
@@ -0,0 +1,219 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 684CE7B8
+P 4750 2600
+F 0 "SC2" H 4800 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5050 2687 50  0000 R CNN
+F 2 "" H 4750 1100 50  0001 C CNN
+F 3 "" H 4750 2600 50  0001 C CNN
+	1    4750 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684CE82E
+P 5150 3400
+F 0 "SC3" H 5200 3700 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5450 3487 50  0000 R CNN
+F 2 "" H 5150 1900 50  0001 C CNN
+F 3 "" H 5150 3400 50  0001 C CNN
+	1    5150 3400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684CE88F
+P 4050 4450
+F 0 "SC1" H 4100 4750 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4350 4537 50  0000 R CNN
+F 2 "" H 4050 2950 50  0001 C CNN
+F 3 "" H 4050 4450 50  0001 C CNN
+	1    4050 4450
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 684CE8CA
+P 5650 4450
+F 0 "SC4" H 5700 4750 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5950 4537 50  0000 R CNN
+F 2 "" H 5650 2950 50  0001 C CNN
+F 3 "" H 5650 4450 50  0001 C CNN
+	1    5650 4450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684CE919
+P 3100 3450
+F 0 "U1" H 3150 3550 30  0000 C CNN
+F 1 "PORT" H 3100 3450 30  0000 C CNN
+F 2 "" H 3100 3450 60  0000 C CNN
+F 3 "" H 3100 3450 60  0000 C CNN
+	1    3100 3450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684CE990
+P 6350 3400
+F 0 "U1" H 6400 3500 30  0000 C CNN
+F 1 "PORT" H 6350 3400 30  0000 C CNN
+F 2 "" H 6350 3400 60  0000 C CNN
+F 3 "" H 6350 3400 60  0000 C CNN
+	4    6350 3400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684CEA11
+P 6450 3900
+F 0 "U1" H 6500 4000 30  0000 C CNN
+F 1 "PORT" H 6450 3900 30  0000 C CNN
+F 2 "" H 6450 3900 60  0000 C CNN
+F 3 "" H 6450 3900 60  0000 C CNN
+	5    6450 3900
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684CEA84
+P 4700 2150
+F 0 "U1" H 4750 2250 30  0000 C CNN
+F 1 "PORT" H 4700 2150 30  0000 C CNN
+F 2 "" H 4700 2150 60  0000 C CNN
+F 3 "" H 4700 2150 60  0000 C CNN
+	3    4700 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684CEB11
+P 4650 5100
+F 0 "U1" H 4700 5200 30  0000 C CNN
+F 1 "PORT" H 4650 5100 30  0000 C CNN
+F 2 "" H 4650 5100 60  0000 C CNN
+F 3 "" H 4650 5100 60  0000 C CNN
+	2    4650 5100
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684CEB6E
+P 8300 2900
+F 0 "scmode1" H 8300 3050 98  0000 C CNB
+F 1 "SKY130mode" H 8300 2800 118 0000 C CNB
+F 2 "" H 8300 3050 60  0001 C CNN
+F 3 "" H 8300 3050 60  0001 C CNN
+	1    8300 2900
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4250 4150 5450 4150
+Wire Wire Line
+	4950 3700 4950 4150
+Connection ~ 4950 4150
+Wire Wire Line
+	6200 3900 4950 3900
+Connection ~ 4950 3900
+Wire Wire Line
+	4250 4750 5450 4750
+Wire Wire Line
+	5550 4450 5400 4450
+Wire Wire Line
+	5400 4450 5400 4750
+Connection ~ 5400 4750
+Wire Wire Line
+	4150 4450 4300 4450
+Wire Wire Line
+	4300 4450 4300 4750
+Connection ~ 4300 4750
+Wire Wire Line
+	4900 5100 4900 4750
+Connection ~ 4900 4750
+Wire Wire Line
+	5450 3400 6100 3400
+Wire Wire Line
+	5950 3400 5950 4450
+Connection ~ 5950 3400
+Wire Wire Line
+	4450 2600 3750 2600
+Wire Wire Line
+	3750 2600 3750 4450
+Wire Wire Line
+	3350 3450 3750 3450
+Connection ~ 3750 3450
+Wire Wire Line
+	4950 2150 4950 2300
+Wire Wire Line
+	4850 2600 5000 2600
+Wire Wire Line
+	5000 2600 5000 2250
+Wire Wire Line
+	5000 2250 4950 2250
+Connection ~ 4950 2250
+Wire Wire Line
+	4950 2900 4950 3100
+Wire Wire Line
+	5050 3400 4900 3400
+Wire Wire Line
+	4900 3400 4900 3050
+Wire Wire Line
+	4900 3050 4950 3050
+Connection ~ 4950 3050
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4044BMS/NOR_2.sub b/library/SubcircuitLibrary/CD4044BMS/NOR_2.sub
new file mode 100644
index 000000000..dd148089f
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NOR_2.sub
@@ -0,0 +1,13 @@
+* Subcircuit NOR_2
+.subckt NOR_2 net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc3-pad2_ net-_sc1-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nor_2/nor_2.cir
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc2 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad1_ net-_sc2-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends NOR_2
diff --git a/library/SubcircuitLibrary/CD4044BMS/NOR_2_Previous_Values.xml b/library/SubcircuitLibrary/CD4044BMS/NOR_2_Previous_Values.xml
new file mode 100644
index 000000000..a8736d2ca
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/NOR_2_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc2><field>w=3 l=0.15</field></sc2><sc3><field>w=3 l=0.15</field></sc3><sc1><field>w=1 l=0.15</field></sc1><sc4><field>w=1 l=0.15</field></sc4></devicemodel><subcircuit /></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable-cache.lib b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable-cache.lib
new file mode 100644
index 000000000..b0ad0d0ae
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable-cache.lib
@@ -0,0 +1,187 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 100 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 550 0 50 0 1 0 N
+P 2 0 1 0 -450 250 500 0 N
+P 3 0 1 0 -450 250 -450 -250 500 0 N
+X IN 1 -650 0 200 R 50 50 1 1 I
+X VDD 2 -650 150 200 R 50 50 1 1 I
+X GND 3 -650 -150 200 R 50 50 1 1 I
+X OUT 4 800 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NAND_2
+#
+DEF NAND_2 X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "NAND_2" 400 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 400 0 255 787 -787 0 1 0 N 450 250 450 -250
+C 700 0 0 0 1 0 N
+C 700 0 50 0 1 0 N
+P 2 0 1 0 -300 250 450 250 N
+P 3 0 1 0 -300 250 -300 -250 450 -250 N
+X inA 1 -500 100 200 R 50 50 1 1 I
+X Gnd 2 0 -450 200 U 50 50 1 1 I
+X Vdd 3 0 450 200 D 50 50 1 1 I
+X Out 4 950 0 200 L 50 50 1 1 O
+X inB 5 -500 -100 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# NAND_Latch
+#
+DEF NAND_Latch X 0 40 Y Y 1 F N
+F0 "X" 0 -100 60 H V C CNN
+F1 "NAND_Latch" 0 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 200 450 -200 0 1 0 N
+X S 1 -500 100 200 R 50 50 1 1 I
+X R 2 -500 -100 200 R 50 50 1 1 I
+X Vdd 3 100 400 200 D 50 50 1 1 I
+X Gnd 4 100 -400 200 U 50 50 1 1 I
+X Q 5 650 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NOR_2
+#
+DEF NOR_2 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "NOR_2" 250 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A -350 0 269 682 -682 0 1 0 N -250 250 -250 -250
+A 250 0 255 787 -787 0 1 0 N 300 250 300 -250
+C 550 0 50 0 1 0 N
+P 2 0 1 0 -250 -250 300 -250 N
+P 2 0 1 0 -250 250 300 250 N
+X inA 1 -350 150 200 R 50 50 1 1 I
+X Gnd 2 100 -450 200 U 50 50 1 1 I
+X Vdd 3 100 450 200 D 50 50 1 1 I
+X inB 4 -350 -150 200 R 50 50 1 1 I
+X Out 5 800 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.bak b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.bak
new file mode 100644
index 000000000..0049e35ef
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.bak
@@ -0,0 +1,308 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L NAND_Latch X?
+U 1 1 684D0904
+P 5400 2850
+F 0 "X?" H 5400 2750 60  0000 C CNN
+F 1 "NAND_Latch" H 5400 2850 60  0000 C CNN
+F 2 "" H 5400 2850 60  0001 C CNN
+F 3 "" H 5400 2850 60  0001 C CNN
+	1    5400 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_2 X?
+U 1 1 684D097B
+P 6700 2400
+F 0 "X?" H 6800 2400 60  0000 C CNN
+F 1 "NAND_2" H 7100 2400 60  0000 C CNN
+F 2 "" H 6700 2400 60  0001 C CNN
+F 3 "" H 6700 2400 60  0001 C CNN
+	1    6700 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L NOR_2 X?
+U 1 1 684D09D8
+P 6600 3500
+F 0 "X?" H 6600 3500 60  0000 C CNN
+F 1 "NOR_2" H 6850 3500 60  0000 C CNN
+F 2 "" H 6600 3500 60  0001 C CNN
+F 3 "" H 6600 3500 60  0001 C CNN
+	1    6600 3500
+	1    0    0    1   
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC?
+U 1 1 684D0A0D
+P 8300 2400
+F 0 "SC?" H 8350 2700 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 8600 2487 50  0000 R CNN
+F 2 "" H 8300 900 50  0001 C CNN
+F 3 "" H 8300 2400 50  0001 C CNN
+	1    8300 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC?
+U 1 1 684D0A4E
+P 8300 3500
+F 0 "SC?" H 8350 3800 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 8600 3587 50  0000 R CNN
+F 2 "" H 8300 2000 50  0001 C CNN
+F 3 "" H 8300 3500 50  0001 C CNN
+	1    8300 3500
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X?
+U 1 1 684D0A9A
+P 3500 2300
+F 0 "X?" H 3500 2300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 3600 2050 60  0000 C CNN
+F 2 "" H 3500 2300 60  0001 C CNN
+F 3 "" H 3500 2300 60  0001 C CNN
+	1    3500 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X?
+U 1 1 684D0B05
+P 5200 2300
+F 0 "X?" H 5200 2300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5300 2050 60  0000 C CNN
+F 2 "" H 5200 2300 60  0001 C CNN
+F 3 "" H 5200 2300 60  0001 C CNN
+	1    5200 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 1 1 684D0BAC
+P 2250 2150
+F 0 "U?" H 2300 2250 30  0000 C CNN
+F 1 "PORT" H 2250 2150 30  0000 C CNN
+F 2 "" H 2250 2150 60  0000 C CNN
+F 3 "" H 2250 2150 60  0000 C CNN
+	1    2250 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 2 1 684D0C11
+P 2250 2300
+F 0 "U?" H 2300 2400 30  0000 C CNN
+F 1 "PORT" H 2250 2300 30  0000 C CNN
+F 2 "" H 2250 2300 60  0000 C CNN
+F 3 "" H 2250 2300 60  0000 C CNN
+	2    2250 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 3 1 684D0D74
+P 2250 2450
+F 0 "U?" H 2300 2550 30  0000 C CNN
+F 1 "PORT" H 2250 2450 30  0000 C CNN
+F 2 "" H 2250 2450 60  0000 C CNN
+F 3 "" H 2250 2450 60  0000 C CNN
+	3    2250 2450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 4 1 684D0DD9
+P 2250 2600
+F 0 "U?" H 2300 2700 30  0000 C CNN
+F 1 "PORT" H 2250 2600 30  0000 C CNN
+F 2 "" H 2250 2600 60  0000 C CNN
+F 3 "" H 2250 2600 60  0000 C CNN
+	4    2250 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 5 1 684D0E42
+P 2250 2750
+F 0 "U?" H 2300 2850 30  0000 C CNN
+F 1 "PORT" H 2250 2750 30  0000 C CNN
+F 2 "" H 2250 2750 60  0000 C CNN
+F 3 "" H 2250 2750 60  0000 C CNN
+	5    2250 2750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 6 1 684D0EC7
+P 8900 2950
+F 0 "U?" H 8950 3050 30  0000 C CNN
+F 1 "PORT" H 8900 2950 30  0000 C CNN
+F 2 "" H 8900 2950 60  0000 C CNN
+F 3 "" H 8900 2950 60  0000 C CNN
+	6    8900 2950
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	8500 2700 8500 3200
+Wire Wire Line
+	8650 2950 8500 2950
+Connection ~ 8500 2950
+Wire Wire Line
+	7650 2400 8000 2400
+Wire Wire Line
+	7400 3500 8000 3500
+Wire Wire Line
+	2500 2150 2850 2150
+Wire Wire Line
+	2800 1900 2800 2150
+Wire Wire Line
+	2800 1900 8500 1900
+Wire Wire Line
+	8500 1900 8500 2100
+Wire Wire Line
+	6700 1950 6700 1900
+Connection ~ 6700 1900
+Wire Wire Line
+	4550 2150 4550 1900
+Connection ~ 4550 1900
+Connection ~ 2800 2150
+Wire Wire Line
+	2500 2300 2850 2300
+Wire Wire Line
+	2500 2450 2850 2450
+Wire Wire Line
+	5500 2450 5500 1900
+Connection ~ 5500 1900
+Wire Wire Line
+	6700 3950 6800 3950
+Wire Wire Line
+	6800 3950 6800 1900
+Connection ~ 6800 1900
+Wire Wire Line
+	6200 2500 6200 3350
+Wire Wire Line
+	6200 3350 6250 3350
+Wire Wire Line
+	6050 2850 6200 2850
+Connection ~ 6200 2850
+Wire Wire Line
+	6700 2850 6700 3050
+Wire Wire Line
+	5500 3250 5500 3300
+Wire Wire Line
+	4550 3300 5900 3300
+Wire Wire Line
+	5900 3300 5900 3000
+Wire Wire Line
+	5900 3000 7700 3000
+Connection ~ 6700 3000
+Wire Wire Line
+	7700 3000 7700 3900
+Wire Wire Line
+	7700 3900 8600 3900
+Wire Wire Line
+	8500 3900 8500 3800
+Wire Wire Line
+	8400 3500 8600 3500
+Wire Wire Line
+	8600 3500 8600 3900
+Connection ~ 8500 3900
+Wire Wire Line
+	8400 2400 8550 2400
+Wire Wire Line
+	8550 2400 8550 1950
+Wire Wire Line
+	8550 1950 8500 1950
+Connection ~ 8500 1950
+Wire Wire Line
+	6000 2300 6200 2300
+Wire Wire Line
+	4300 2300 4550 2300
+Wire Wire Line
+	4400 2300 4400 3650
+Wire Wire Line
+	4400 3650 6250 3650
+Connection ~ 4400 2300
+Wire Wire Line
+	2800 2450 2800 2550
+Wire Wire Line
+	2800 2550 4550 2550
+Wire Wire Line
+	4550 2450 4550 3300
+Connection ~ 2800 2450
+Connection ~ 5500 3300
+Connection ~ 4550 2550
+Wire Wire Line
+	2500 2600 4900 2600
+Wire Wire Line
+	4900 2600 4900 2750
+Wire Wire Line
+	2500 2750 2500 2950
+Wire Wire Line
+	2500 2950 4900 2950
+$Comp
+L SKY130mode scmode?
+U 1 1 684D1874
+P 9850 1750
+F 0 "scmode?" H 9850 1900 98  0000 C CNB
+F 1 "SKY130mode" H 9850 1650 118 0000 C CNB
+F 2 "" H 9850 1900 60  0001 C CNN
+F 3 "" H 9850 1900 60  0001 C CNN
+	1    9850 1750
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.cir b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.cir
new file mode 100644
index 000000000..ec0fbff0b
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.cir
@@ -0,0 +1,19 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SR_Latch_with_Enable/SR_Latch_with_Enable.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 14 11:07:47 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X3  Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_X3-Pad5_ NAND_Latch		
+X5  Net-_X2-Pad4_ Net-_SC2-Pad3_ Net-_SC1-Pad3_ Net-_SC1-Pad2_ Net-_X3-Pad5_ NAND_2		
+X4  Net-_X1-Pad4_ Net-_SC2-Pad3_ Net-_SC1-Pad3_ Net-_X3-Pad5_ Net-_SC2-Pad2_ NOR_2		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC2-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+X1  Net-_U1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_X1-Pad4_ CMOS_INVTR		
+X2  Net-_X1-Pad4_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_X2-Pad4_ CMOS_INVTR		
+U1  Net-_SC1-Pad3_ Net-_U1-Pad2_ Net-_SC2-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.cir.out b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.cir.out
new file mode 100644
index 000000000..c01a00a56
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.cir.out
@@ -0,0 +1,26 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/sr_latch_with_enable/sr_latch_with_enable.cir
+
+.include CMOS_INVTR.sub
+.include NOR_2.sub
+.include NAND_2.sub
+.include NAND_Latch.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x3 net-_u1-pad4_ net-_u1-pad5_ net-_sc1-pad3_ net-_sc2-pad3_ net-_x3-pad5_ NAND_Latch
+x5 net-_x2-pad4_ net-_sc2-pad3_ net-_sc1-pad3_ net-_sc1-pad2_ net-_x3-pad5_ NAND_2
+x4 net-_x1-pad4_ net-_sc2-pad3_ net-_sc1-pad3_ net-_x3-pad5_ net-_sc2-pad2_ NOR_2
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+x1 net-_u1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_x1-pad4_ CMOS_INVTR
+x2 net-_x1-pad4_ net-_sc1-pad3_ net-_sc2-pad3_ net-_x2-pad4_ CMOS_INVTR
+* u1  net-_sc1-pad3_ net-_u1-pad2_ net-_sc2-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_sc1-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.pro b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.sch b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.sch
new file mode 100644
index 000000000..15ee2aa73
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.sch
@@ -0,0 +1,308 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L NAND_Latch X3
+U 1 1 684D0904
+P 5400 2850
+F 0 "X3" H 5400 2750 60  0000 C CNN
+F 1 "NAND_Latch" H 5400 2850 60  0000 C CNN
+F 2 "" H 5400 2850 60  0001 C CNN
+F 3 "" H 5400 2850 60  0001 C CNN
+	1    5400 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_2 X5
+U 1 1 684D097B
+P 6700 2400
+F 0 "X5" H 6800 2400 60  0000 C CNN
+F 1 "NAND_2" H 7100 2400 60  0000 C CNN
+F 2 "" H 6700 2400 60  0001 C CNN
+F 3 "" H 6700 2400 60  0001 C CNN
+	1    6700 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L NOR_2 X4
+U 1 1 684D09D8
+P 6600 3500
+F 0 "X4" H 6600 3500 60  0000 C CNN
+F 1 "NOR_2" H 6850 3500 60  0000 C CNN
+F 2 "" H 6600 3500 60  0001 C CNN
+F 3 "" H 6600 3500 60  0001 C CNN
+	1    6600 3500
+	1    0    0    1   
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 684D0A0D
+P 8300 2400
+F 0 "SC1" H 8350 2700 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 8600 2487 50  0000 R CNN
+F 2 "" H 8300 900 50  0001 C CNN
+F 3 "" H 8300 2400 50  0001 C CNN
+	1    8300 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684D0A4E
+P 8300 3500
+F 0 "SC2" H 8350 3800 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 8600 3587 50  0000 R CNN
+F 2 "" H 8300 2000 50  0001 C CNN
+F 3 "" H 8300 3500 50  0001 C CNN
+	1    8300 3500
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X1
+U 1 1 684D0A9A
+P 3500 2300
+F 0 "X1" H 3500 2300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 3600 2050 60  0000 C CNN
+F 2 "" H 3500 2300 60  0001 C CNN
+F 3 "" H 3500 2300 60  0001 C CNN
+	1    3500 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 684D0B05
+P 5200 2300
+F 0 "X2" H 5200 2300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5300 2050 60  0000 C CNN
+F 2 "" H 5200 2300 60  0001 C CNN
+F 3 "" H 5200 2300 60  0001 C CNN
+	1    5200 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684D0BAC
+P 2250 2150
+F 0 "U1" H 2300 2250 30  0000 C CNN
+F 1 "PORT" H 2250 2150 30  0000 C CNN
+F 2 "" H 2250 2150 60  0000 C CNN
+F 3 "" H 2250 2150 60  0000 C CNN
+	1    2250 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684D0C11
+P 2250 2300
+F 0 "U1" H 2300 2400 30  0000 C CNN
+F 1 "PORT" H 2250 2300 30  0000 C CNN
+F 2 "" H 2250 2300 60  0000 C CNN
+F 3 "" H 2250 2300 60  0000 C CNN
+	2    2250 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684D0D74
+P 2250 2450
+F 0 "U1" H 2300 2550 30  0000 C CNN
+F 1 "PORT" H 2250 2450 30  0000 C CNN
+F 2 "" H 2250 2450 60  0000 C CNN
+F 3 "" H 2250 2450 60  0000 C CNN
+	3    2250 2450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684D0DD9
+P 2250 2600
+F 0 "U1" H 2300 2700 30  0000 C CNN
+F 1 "PORT" H 2250 2600 30  0000 C CNN
+F 2 "" H 2250 2600 60  0000 C CNN
+F 3 "" H 2250 2600 60  0000 C CNN
+	4    2250 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684D0E42
+P 2250 2750
+F 0 "U1" H 2300 2850 30  0000 C CNN
+F 1 "PORT" H 2250 2750 30  0000 C CNN
+F 2 "" H 2250 2750 60  0000 C CNN
+F 3 "" H 2250 2750 60  0000 C CNN
+	5    2250 2750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 684D0EC7
+P 8900 2950
+F 0 "U1" H 8950 3050 30  0000 C CNN
+F 1 "PORT" H 8900 2950 30  0000 C CNN
+F 2 "" H 8900 2950 60  0000 C CNN
+F 3 "" H 8900 2950 60  0000 C CNN
+	6    8900 2950
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	8500 2700 8500 3200
+Wire Wire Line
+	8650 2950 8500 2950
+Connection ~ 8500 2950
+Wire Wire Line
+	7650 2400 8000 2400
+Wire Wire Line
+	7400 3500 8000 3500
+Wire Wire Line
+	2500 2150 2850 2150
+Wire Wire Line
+	2800 1900 2800 2150
+Wire Wire Line
+	2800 1900 8500 1900
+Wire Wire Line
+	8500 1900 8500 2100
+Wire Wire Line
+	6700 1950 6700 1900
+Connection ~ 6700 1900
+Wire Wire Line
+	4550 2150 4550 1900
+Connection ~ 4550 1900
+Connection ~ 2800 2150
+Wire Wire Line
+	2500 2300 2850 2300
+Wire Wire Line
+	2500 2450 2850 2450
+Wire Wire Line
+	5500 2450 5500 1900
+Connection ~ 5500 1900
+Wire Wire Line
+	6700 3950 6800 3950
+Wire Wire Line
+	6800 3950 6800 1900
+Connection ~ 6800 1900
+Wire Wire Line
+	6200 2500 6200 3350
+Wire Wire Line
+	6200 3350 6250 3350
+Wire Wire Line
+	6050 2850 6200 2850
+Connection ~ 6200 2850
+Wire Wire Line
+	6700 2850 6700 3050
+Wire Wire Line
+	5500 3250 5500 3300
+Wire Wire Line
+	4550 3300 5900 3300
+Wire Wire Line
+	5900 3300 5900 3000
+Wire Wire Line
+	5900 3000 7700 3000
+Connection ~ 6700 3000
+Wire Wire Line
+	7700 3000 7700 3900
+Wire Wire Line
+	7700 3900 8600 3900
+Wire Wire Line
+	8500 3900 8500 3800
+Wire Wire Line
+	8400 3500 8600 3500
+Wire Wire Line
+	8600 3500 8600 3900
+Connection ~ 8500 3900
+Wire Wire Line
+	8400 2400 8550 2400
+Wire Wire Line
+	8550 2400 8550 1950
+Wire Wire Line
+	8550 1950 8500 1950
+Connection ~ 8500 1950
+Wire Wire Line
+	6000 2300 6200 2300
+Wire Wire Line
+	4300 2300 4550 2300
+Wire Wire Line
+	4400 2300 4400 3650
+Wire Wire Line
+	4400 3650 6250 3650
+Connection ~ 4400 2300
+Wire Wire Line
+	2800 2450 2800 2550
+Wire Wire Line
+	2800 2550 4550 2550
+Wire Wire Line
+	4550 2450 4550 3300
+Connection ~ 2800 2450
+Connection ~ 5500 3300
+Connection ~ 4550 2550
+Wire Wire Line
+	2500 2600 4900 2600
+Wire Wire Line
+	4900 2600 4900 2750
+Wire Wire Line
+	2500 2750 2500 2950
+Wire Wire Line
+	2500 2950 4900 2950
+$Comp
+L SKY130mode scmode1
+U 1 1 684D1874
+P 9850 1750
+F 0 "scmode1" H 9850 1900 98  0000 C CNB
+F 1 "SKY130mode" H 9850 1650 118 0000 C CNB
+F 2 "" H 9850 1900 60  0001 C CNN
+F 3 "" H 9850 1900 60  0001 C CNN
+	1    9850 1750
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.sub b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.sub
new file mode 100644
index 000000000..b67493832
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable.sub
@@ -0,0 +1,20 @@
+* Subcircuit SR_Latch_with_Enable
+.subckt SR_Latch_with_Enable net-_sc1-pad3_ net-_u1-pad2_ net-_sc2-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_sc1-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/sr_latch_with_enable/sr_latch_with_enable.cir
+.include CMOS_INVTR.sub
+.include NOR_2.sub
+.include NAND_2.sub
+.include NAND_Latch.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x3 net-_u1-pad4_ net-_u1-pad5_ net-_sc1-pad3_ net-_sc2-pad3_ net-_x3-pad5_ NAND_Latch
+x5 net-_x2-pad4_ net-_sc2-pad3_ net-_sc1-pad3_ net-_sc1-pad2_ net-_x3-pad5_ NAND_2
+x4 net-_x1-pad4_ net-_sc2-pad3_ net-_sc1-pad3_ net-_x3-pad5_ net-_sc2-pad2_ NOR_2
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+x1 net-_u1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_x1-pad4_ CMOS_INVTR
+x2 net-_x1-pad4_ net-_sc1-pad3_ net-_sc2-pad3_ net-_x2-pad4_ CMOS_INVTR
+* s c m o d e
+* Control Statements
+
+.ends SR_Latch_with_Enable
diff --git a/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable_Previous_Values.xml b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable_Previous_Values.xml
new file mode 100644
index 000000000..a06c31a8d
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/SR_Latch_with_Enable_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2></devicemodel><subcircuit><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_Latch</field></x3><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x5><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NOR_2</field></x4><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x2></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4044BMS/analysis b/library/SubcircuitLibrary/CD4044BMS/analysis
new file mode 100644
index 000000000..ebd5c0a94
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4044BMS/analysis
@@ -0,0 +1 @@
+.tran 0e-00 0e-00 0e-00
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4068B/CD4068B-cache.lib b/library/SubcircuitLibrary/CD4068B/CD4068B-cache.lib
new file mode 100644
index 000000000..80dcddf3a
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CD4068B-cache.lib
@@ -0,0 +1,128 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 100 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 550 0 50 0 1 0 N
+P 2 0 1 0 -450 250 500 0 N
+P 3 0 1 0 -450 250 -450 -250 500 0 N
+X IN 1 -650 0 200 R 50 50 1 1 I
+X VDD 2 -650 150 200 R 50 50 1 1 I
+X GND 3 -650 -150 200 R 50 50 1 1 I
+X OUT 4 800 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4068B/CD4068B.bak b/library/SubcircuitLibrary/CD4068B/CD4068B.bak
new file mode 100644
index 000000000..4e5197823
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CD4068B.bak
@@ -0,0 +1,878 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
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+F 0 "SC6" H 4150 1300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4400 1087 50  0000 R CNN
+F 2 "" H 4100 -500 50  0001 C CNN
+F 3 "" H 4100 1000 50  0001 C CNN
+	1    4100 1000
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 1 "sky130_fd_pr__pfet_01v8" H 4400 1737 50  0000 R CNN
+F 2 "" H 4100 150 50  0001 C CNN
+F 3 "" H 4100 1650 50  0001 C CNN
+	1    4100 1650
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 4100 800 50  0001 C CNN
+F 3 "" H 4100 2300 50  0001 C CNN
+	1    4100 2300
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 4100 1450 50  0001 C CNN
+F 3 "" H 4100 2950 50  0001 C CNN
+	1    4100 2950
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 4100 2150 50  0001 C CNN
+F 3 "" H 4100 3650 50  0001 C CNN
+	1    4100 3650
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 3400 2150 50  0001 C CNN
+F 3 "" H 3400 3650 50  0001 C CNN
+	1    3400 3650
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 2700 2150 50  0001 C CNN
+F 3 "" H 2700 3650 50  0001 C CNN
+	1    2700 3650
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 2000 2150 50  0001 C CNN
+F 3 "" H 2000 3650 50  0001 C CNN
+	1    2000 3650
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 5100 3150 50  0001 C CNN
+F 3 "" H 5100 4650 50  0001 C CNN
+	1    5100 4650
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 5100 3800 50  0001 C CNN
+F 3 "" H 5100 5300 50  0001 C CNN
+	1    5100 5300
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 5100 4450 50  0001 C CNN
+F 3 "" H 5100 5950 50  0001 C CNN
+	1    5100 5950
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 0 "SC15" H 5150 6900 50  0000 C CNN
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+F 2 "" H 5100 5100 50  0001 C CNN
+F 3 "" H 5100 6600 50  0001 C CNN
+	1    5100 6600
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 0 "SC16" H 5150 7600 50  0000 C CNN
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+F 2 "" H 5100 5800 50  0001 C CNN
+F 3 "" H 5100 7300 50  0001 C CNN
+	1    5100 7300
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 4400 5800 50  0001 C CNN
+F 3 "" H 4400 7300 50  0001 C CNN
+	1    4400 7300
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 0 "SC5" H 3750 7600 50  0000 C CNN
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+F 2 "" H 3700 5800 50  0001 C CNN
+F 3 "" H 3700 7300 50  0001 C CNN
+	1    3700 7300
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 1 "sky130_fd_pr__nfet_01v8" H 3300 7387 50  0000 R CNN
+F 2 "" H 3000 5800 50  0001 C CNN
+F 3 "" H 3000 7300 50  0001 C CNN
+	1    3000 7300
+	1    0    0    -1  
+$EndComp
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+L CMOS_INVTR X9
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+F 0 "X9" H 7850 3500 60  0000 C CNN
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+F 2 "" H 7850 3500 60  0001 C CNN
+F 3 "" H 7850 3500 60  0001 C CNN
+	1    7850 3500
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 1 "CMOS_INVTR" H 9500 3250 60  0000 C CNN
+F 2 "" H 9400 3500 60  0001 C CNN
+F 3 "" H 9400 3500 60  0001 C CNN
+	1    9400 3500
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 0 "X1" H 2000 850 60  0000 C CNN
+F 1 "CMOS_INVTR" H 2100 600 60  0000 C CNN
+F 2 "" H 2000 850 60  0001 C CNN
+F 3 "" H 2000 850 60  0001 C CNN
+	1    2000 850 
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 2000 1350 60  0001 C CNN
+F 3 "" H 2000 1350 60  0001 C CNN
+	1    2000 1350
+	1    0    0    -1  
+$EndComp
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+F 3 "" H 2000 1850 60  0001 C CNN
+	1    2000 1850
+	1    0    0    -1  
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+F 2 "" H 2000 2350 60  0001 C CNN
+F 3 "" H 2000 2350 60  0001 C CNN
+	1    2000 2350
+	1    0    0    -1  
+$EndComp
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+F 2 "" H 3450 4600 60  0001 C CNN
+F 3 "" H 3450 4600 60  0001 C CNN
+	1    3450 4600
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 0 "X6" H 3450 5100 60  0000 C CNN
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+F 2 "" H 3450 5100 60  0001 C CNN
+F 3 "" H 3450 5100 60  0001 C CNN
+	1    3450 5100
+	1    0    0    -1  
+$EndComp
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+F 2 "" H 3450 5600 60  0001 C CNN
+F 3 "" H 3450 5600 60  0001 C CNN
+	1    3450 5600
+	1    0    0    -1  
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+F 3 "" H 3450 6100 60  0001 C CNN
+	1    3450 6100
+	1    0    0    -1  
+$EndComp
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+F 3 "" H 850 850 60  0000 C CNN
+	1    850  850 
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 1 "PORT" H 850 1350 30  0000 C CNN
+F 2 "" H 850 1350 60  0000 C CNN
+F 3 "" H 850 1350 60  0000 C CNN
+	2    850  1350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
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+F 1 "PORT" H 850 1850 30  0000 C CNN
+F 2 "" H 850 1850 60  0000 C CNN
+F 3 "" H 850 1850 60  0000 C CNN
+	3    850  1850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
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+F 0 "U1" H 900 2450 30  0000 C CNN
+F 1 "PORT" H 850 2350 30  0000 C CNN
+F 2 "" H 850 2350 60  0000 C CNN
+F 3 "" H 850 2350 60  0000 C CNN
+	4    850  2350
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 1 "PORT" H 2300 4600 30  0000 C CNN
+F 2 "" H 2300 4600 60  0000 C CNN
+F 3 "" H 2300 4600 60  0000 C CNN
+	5    2300 4600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
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+F 0 "U1" H 2350 5200 30  0000 C CNN
+F 1 "PORT" H 2300 5100 30  0000 C CNN
+F 2 "" H 2300 5100 60  0000 C CNN
+F 3 "" H 2300 5100 60  0000 C CNN
+	6    2300 5100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 685AF624
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+F 0 "U1" H 2350 5700 30  0000 C CNN
+F 1 "PORT" H 2300 5600 30  0000 C CNN
+F 2 "" H 2300 5600 60  0000 C CNN
+F 3 "" H 2300 5600 60  0000 C CNN
+	7    2300 5600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 8 1 685AF6CD
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+F 0 "U1" H 2350 6200 30  0000 C CNN
+F 1 "PORT" H 2300 6100 30  0000 C CNN
+F 2 "" H 2300 6100 60  0000 C CNN
+F 3 "" H 2300 6100 60  0000 C CNN
+	8    2300 6100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 11 1 685AF8FA
+P 10650 3500
+F 0 "U1" H 10700 3600 30  0000 C CNN
+F 1 "PORT" H 10650 3500 30  0000 C CNN
+F 2 "" H 10650 3500 60  0000 C CNN
+F 3 "" H 10650 3500 60  0000 C CNN
+	11   10650 3500
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 12 1 685AF9B9
+P 10650 3850
+F 0 "U1" H 10700 3950 30  0000 C CNN
+F 1 "PORT" H 10650 3850 30  0000 C CNN
+F 2 "" H 10650 3850 60  0000 C CNN
+F 3 "" H 10650 3850 60  0000 C CNN
+	12   10650 3850
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 685AFD96
+P 4900 600
+F 0 "U1" H 4950 700 30  0000 C CNN
+F 1 "PORT" H 4900 600 30  0000 C CNN
+F 2 "" H 4900 600 60  0000 C CNN
+F 3 "" H 4900 600 60  0000 C CNN
+	9    4900 600 
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 685B0001
+P 5700 7700
+F 0 "U1" H 5750 7800 30  0000 C CNN
+F 1 "PORT" H 5700 7700 30  0000 C CNN
+F 2 "" H 5700 7700 60  0000 C CNN
+F 3 "" H 5700 7700 60  0000 C CNN
+	10   5700 7700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC17
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+P 5350 2600
+F 0 "SC17" H 5400 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5650 2687 50  0000 R CNN
+F 2 "" H 5350 1100 50  0001 C CNN
+F 3 "" H 5350 2600 50  0001 C CNN
+	1    5350 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC20
+U 1 1 685B05AA
+P 6000 2600
+F 0 "SC20" H 6050 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6300 2687 50  0000 R CNN
+F 2 "" H 6000 1100 50  0001 C CNN
+F 3 "" H 6000 2600 50  0001 C CNN
+	1    6000 2600
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC18
+U 1 1 685B066D
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+F 0 "SC18" H 5550 3700 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5800 3487 50  0000 R CNN
+F 2 "" H 5500 1900 50  0001 C CNN
+F 3 "" H 5500 3400 50  0001 C CNN
+	1    5500 3400
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC19
+U 1 1 685B071E
+P 5900 4050
+F 0 "SC19" H 5950 4350 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6200 4137 50  0000 R CNN
+F 2 "" H 5900 2550 50  0001 C CNN
+F 3 "" H 5900 4050 50  0001 C CNN
+	1    5900 4050
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	1100 850  1350 850 
+Wire Wire Line
+	1100 1350 1350 1350
+Wire Wire Line
+	1100 1850 1350 1850
+Wire Wire Line
+	1100 2350 1350 2350
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+	2550 6100 2800 6100
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+Wire Wire Line
+	4300 3350 4300 3250
+Wire Wire Line
+	3800 2950 3800 3650
+Wire Wire Line
+	3800 2300 3100 2300
+Wire Wire Line
+	3100 1850 3100 3650
+Wire Wire Line
+	3800 1650 2400 1650
+Wire Wire Line
+	2400 1650 2400 3650
+Wire Wire Line
+	3800 1000 1700 1000
+Wire Wire Line
+	1700 1000 1700 3650
+Wire Wire Line
+	2800 850  2800 1000
+Connection ~ 2800 1000
+Wire Wire Line
+	2800 1350 2800 1650
+Connection ~ 2800 1650
+Wire Wire Line
+	2800 1850 3100 1850
+Connection ~ 3100 2300
+Wire Wire Line
+	2800 2350 3650 2350
+Wire Wire Line
+	3650 2350 3650 3000
+Wire Wire Line
+	3650 3000 3800 3000
+Connection ~ 3800 3000
+Wire Wire Line
+	5300 4950 5300 5000
+Wire Wire Line
+	5300 5600 5300 5650
+Wire Wire Line
+	5300 6250 5300 6300
+Wire Wire Line
+	5300 6900 5300 7000
+Wire Wire Line
+	4800 6600 4800 7300
+Wire Wire Line
+	4800 5950 4100 5950
+Wire Wire Line
+	4100 5950 4100 7300
+Wire Wire Line
+	4800 5300 3400 5300
+Wire Wire Line
+	3400 5300 3400 7300
+Wire Wire Line
+	4800 4650 2700 4650
+Wire Wire Line
+	2700 4650 2700 7300
+Wire Wire Line
+	4250 6100 4250 6650
+Wire Wire Line
+	4250 6650 4800 6650
+Connection ~ 4800 6650
+Wire Wire Line
+	4250 5600 4250 5950
+Connection ~ 4250 5950
+Wire Wire Line
+	4250 5100 4250 5300
+Connection ~ 4250 5300
+Wire Wire Line
+	4300 4600 4250 4600
+Wire Wire Line
+	4300 4600 4300 4650
+Connection ~ 4300 4650
+Wire Wire Line
+	10200 3500 10400 3500
+Wire Wire Line
+	7050 3850 10400 3850
+Wire Wire Line
+	7050 3000 7050 3850
+Wire Wire Line
+	7050 3500 7200 3500
+Wire Wire Line
+	8650 3500 8750 3500
+Wire Wire Line
+	5550 2900 5800 2900
+Wire Wire Line
+	5700 3100 5700 2900
+Connection ~ 5700 2900
+Wire Wire Line
+	5700 3000 7050 3000
+Connection ~ 7050 3500
+Connection ~ 5700 3000
+Wire Wire Line
+	5700 3750 5700 3700
+Wire Wire Line
+	5550 2300 5800 2300
+Wire Wire Line
+	5050 2600 5050 3400
+Wire Wire Line
+	5050 3400 5200 3400
+Wire Wire Line
+	2200 3300 5050 3300
+Connection ~ 5050 3300
+Connection ~ 4300 3300
+Wire Wire Line
+	6300 2600 6300 4050
+Wire Wire Line
+	6300 4050 6200 4050
+Wire Wire Line
+	3200 6950 6400 6950
+Wire Wire Line
+	6400 6950 6400 3800
+Wire Wire Line
+	6400 3800 6300 3800
+Connection ~ 6300 3800
+Connection ~ 5300 6950
+Wire Wire Line
+	4300 700  4450 700 
+Wire Wire Line
+	4450 550  4450 4250
+Wire Wire Line
+	4450 4250 5450 4250
+Wire Wire Line
+	5300 4250 5300 4350
+Wire Wire Line
+	5450 4250 5450 6600
+Wire Wire Line
+	5450 6600 5200 6600
+Connection ~ 5300 4250
+Wire Wire Line
+	5200 5950 5450 5950
+Connection ~ 5450 5950
+Wire Wire Line
+	5200 5300 5450 5300
+Connection ~ 5450 5300
+Wire Wire Line
+	5200 4650 5450 4650
+Connection ~ 5450 4650
+Wire Wire Line
+	4200 2950 4450 2950
+Connection ~ 4450 2950
+Wire Wire Line
+	4200 2300 4450 2300
+Connection ~ 4450 2300
+Wire Wire Line
+	4200 1650 8750 1650
+Connection ~ 4450 1650
+Wire Wire Line
+	4200 1000 4450 1000
+Connection ~ 4450 1000
+Wire Wire Line
+	2200 3300 2200 3350
+Wire Wire Line
+	2900 3350 2900 3300
+Connection ~ 2900 3300
+Wire Wire Line
+	3600 3350 3600 3300
+Connection ~ 3600 3300
+Wire Wire Line
+	3200 6950 3200 7000
+Wire Wire Line
+	3900 7000 3900 6950
+Connection ~ 3900 6950
+Wire Wire Line
+	4600 7000 4600 6950
+Connection ~ 4600 6950
+Wire Wire Line
+	1350 2200 1100 2200
+Wire Wire Line
+	1100 550  1100 4450
+Wire Wire Line
+	1100 550  4450 550 
+Connection ~ 4450 700 
+Wire Wire Line
+	1350 1700 1100 1700
+Connection ~ 1100 1700
+Wire Wire Line
+	1350 1200 1100 1200
+Connection ~ 1100 1200
+Wire Wire Line
+	1350 700  1100 700 
+Connection ~ 1100 700 
+Wire Wire Line
+	1100 4450 2800 4450
+Connection ~ 1100 2200
+Wire Wire Line
+	2800 5950 2600 5950
+Wire Wire Line
+	2600 5950 2600 4450
+Connection ~ 2600 4450
+Wire Wire Line
+	2800 4950 2600 4950
+Connection ~ 2600 4950
+Wire Wire Line
+	2800 5450 2600 5450
+Connection ~ 2600 5450
+Wire Wire Line
+	5450 2600 5600 2600
+Wire Wire Line
+	5600 2600 5600 2300
+Connection ~ 5600 2300
+Wire Wire Line
+	5900 2600 5750 2600
+Wire Wire Line
+	5750 2600 5750 2300
+Connection ~ 5750 2300
+Wire Wire Line
+	5700 1650 5700 2300
+Connection ~ 5700 2300
+Wire Wire Line
+	8750 1650 8750 3350
+Connection ~ 5700 1650
+Wire Wire Line
+	7200 3350 7200 1650
+Connection ~ 7200 1650
+Wire Wire Line
+	4650 600  4450 600 
+Connection ~ 4450 600 
+Wire Wire Line
+	1350 1000 1200 1000
+Wire Wire Line
+	1200 1000 1200 7700
+Wire Wire Line
+	1350 1500 1200 1500
+Connection ~ 1200 1500
+Wire Wire Line
+	1350 2000 1200 2000
+Connection ~ 1200 2000
+Wire Wire Line
+	1350 2500 1200 2500
+Connection ~ 1200 2500
+Wire Wire Line
+	1200 4050 5800 4050
+Wire Wire Line
+	4300 4050 4300 3950
+Wire Wire Line
+	4200 3650 4350 3650
+Wire Wire Line
+	4350 3650 4350 4050
+Connection ~ 4300 4050
+Wire Wire Line
+	3600 3950 3600 4050
+Connection ~ 3600 4050
+Wire Wire Line
+	3500 3650 3650 3650
+Wire Wire Line
+	3650 3650 3650 4050
+Connection ~ 3650 4050
+Wire Wire Line
+	2900 3950 2900 4050
+Connection ~ 2900 4050
+Wire Wire Line
+	2800 3650 2950 3650
+Wire Wire Line
+	2950 3650 2950 4050
+Connection ~ 2950 4050
+Wire Wire Line
+	2200 3950 2200 4050
+Connection ~ 2200 4050
+Wire Wire Line
+	2100 3650 2250 3650
+Wire Wire Line
+	2250 3650 2250 4050
+Connection ~ 2250 4050
+Wire Wire Line
+	1200 7700 5450 7700
+Wire Wire Line
+	5300 7700 5300 7600
+Connection ~ 1200 4050
+Wire Wire Line
+	5200 7300 5350 7300
+Wire Wire Line
+	5350 7300 5350 7700
+Connection ~ 5300 7700
+Wire Wire Line
+	4600 7600 4600 7700
+Connection ~ 4600 7700
+Wire Wire Line
+	4500 7300 4650 7300
+Wire Wire Line
+	4650 7300 4650 7700
+Connection ~ 4650 7700
+Wire Wire Line
+	3900 7600 3900 7700
+Connection ~ 3900 7700
+Wire Wire Line
+	3800 7300 3950 7300
+Wire Wire Line
+	3950 7300 3950 7700
+Connection ~ 3950 7700
+Wire Wire Line
+	3200 7600 3200 7700
+Connection ~ 3200 7700
+Wire Wire Line
+	3100 7300 3250 7300
+Wire Wire Line
+	3250 7300 3250 7700
+Connection ~ 3250 7700
+Connection ~ 5350 7700
+Wire Wire Line
+	2800 4750 1200 4750
+Connection ~ 1200 4750
+Wire Wire Line
+	2800 5250 1200 5250
+Connection ~ 1200 5250
+Wire Wire Line
+	2800 5750 1200 5750
+Connection ~ 1200 5750
+Wire Wire Line
+	2800 6250 1200 6250
+Connection ~ 1200 6250
+Wire Wire Line
+	5550 4050 5550 4400
+Wire Wire Line
+	5550 4400 8750 4400
+Wire Wire Line
+	8750 4400 8750 3650
+Connection ~ 4350 4050
+Wire Wire Line
+	7200 3650 7200 4400
+Connection ~ 7200 4400
+Wire Wire Line
+	5700 4350 5700 4400
+Connection ~ 5700 4400
+Connection ~ 5550 4050
+Wire Wire Line
+	5600 3400 6000 3400
+Wire Wire Line
+	6000 3400 6000 4400
+Connection ~ 6000 4400
+$Comp
+L SKY130mode scmode1
+U 1 1 685BA6E8
+P 8750 5150
+F 0 "scmode1" H 8750 5300 98  0000 C CNB
+F 1 "SKY130mode" H 8750 5050 118 0000 C CNB
+F 2 "" H 8750 5300 60  0001 C CNN
+F 3 "" H 8750 5300 60  0001 C CNN
+	1    8750 5150
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4068B/CD4068B.cir b/library/SubcircuitLibrary/CD4068B/CD4068B.cir
new file mode 100644
index 000000000..8e615d3e1
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CD4068B.cir
@@ -0,0 +1,43 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CD4068B/CD4068B.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Wed Jun 25 11:08:04 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC6  Net-_SC6-Pad1_ Net-_SC1-Pad2_ Net-_SC12-Pad3_ Net-_SC12-Pad3_ sky130_fd_pr__pfet_01v8		
+SC7  Net-_SC7-Pad1_ Net-_SC2-Pad2_ Net-_SC6-Pad1_ Net-_SC12-Pad3_ sky130_fd_pr__pfet_01v8		
+SC8  Net-_SC8-Pad1_ Net-_SC4-Pad2_ Net-_SC7-Pad1_ Net-_SC12-Pad3_ sky130_fd_pr__pfet_01v8		
+SC9  Net-_SC1-Pad1_ Net-_SC10-Pad2_ Net-_SC8-Pad1_ Net-_SC12-Pad3_ sky130_fd_pr__pfet_01v8		
+SC10  Net-_SC1-Pad1_ Net-_SC10-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC1-Pad1_ Net-_SC4-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC2-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC12  Net-_SC12-Pad1_ Net-_SC12-Pad2_ Net-_SC12-Pad3_ Net-_SC12-Pad3_ sky130_fd_pr__pfet_01v8		
+SC13  Net-_SC13-Pad1_ Net-_SC13-Pad2_ Net-_SC12-Pad1_ Net-_SC12-Pad3_ sky130_fd_pr__pfet_01v8		
+SC14  Net-_SC14-Pad1_ Net-_SC11-Pad2_ Net-_SC13-Pad1_ Net-_SC12-Pad3_ sky130_fd_pr__pfet_01v8		
+SC15  Net-_SC11-Pad1_ Net-_SC15-Pad2_ Net-_SC14-Pad1_ Net-_SC12-Pad3_ sky130_fd_pr__pfet_01v8		
+SC16  Net-_SC11-Pad1_ Net-_SC15-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC11  Net-_SC11-Pad1_ Net-_SC11-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC5  Net-_SC11-Pad1_ Net-_SC13-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC3  Net-_SC11-Pad1_ Net-_SC12-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+X9  Net-_SC17-Pad1_ Net-_SC12-Pad3_ Net-_SC1-Pad3_ Net-_X10-Pad1_ CMOS_INVTR		
+X10  Net-_X10-Pad1_ Net-_SC12-Pad3_ Net-_SC1-Pad3_ Net-_U1-Pad11_ CMOS_INVTR		
+X1  Net-_U1-Pad1_ Net-_SC12-Pad3_ Net-_SC1-Pad3_ Net-_SC1-Pad2_ CMOS_INVTR		
+X2  Net-_U1-Pad2_ Net-_SC12-Pad3_ Net-_SC1-Pad3_ Net-_SC2-Pad2_ CMOS_INVTR		
+X3  Net-_U1-Pad3_ Net-_SC12-Pad3_ Net-_SC1-Pad3_ Net-_SC4-Pad2_ CMOS_INVTR		
+X4  Net-_U1-Pad4_ Net-_SC12-Pad3_ Net-_SC1-Pad3_ Net-_SC10-Pad2_ CMOS_INVTR		
+X5  Net-_U1-Pad5_ Net-_SC12-Pad3_ Net-_SC1-Pad3_ Net-_SC12-Pad2_ CMOS_INVTR		
+X6  Net-_U1-Pad6_ Net-_SC12-Pad3_ Net-_SC1-Pad3_ Net-_SC13-Pad2_ CMOS_INVTR		
+X7  Net-_U1-Pad7_ Net-_SC12-Pad3_ Net-_SC1-Pad3_ Net-_SC11-Pad2_ CMOS_INVTR		
+X8  Net-_U1-Pad8_ Net-_SC12-Pad3_ Net-_SC1-Pad3_ Net-_SC15-Pad2_ CMOS_INVTR		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_SC12-Pad3_ Net-_SC1-Pad3_ Net-_U1-Pad11_ Net-_U1-Pad12_ PORT		
+SC17  Net-_SC17-Pad1_ Net-_SC1-Pad1_ Net-_SC12-Pad3_ Net-_SC12-Pad3_ sky130_fd_pr__pfet_01v8		
+SC20  Net-_SC17-Pad1_ Net-_SC11-Pad1_ Net-_SC12-Pad3_ Net-_SC12-Pad3_ sky130_fd_pr__pfet_01v8		
+SC18  Net-_SC17-Pad1_ Net-_SC1-Pad1_ Net-_SC18-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC19  Net-_SC18-Pad3_ Net-_SC11-Pad1_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+scmode1  SKY130mode		
+X11  Net-_SC17-Pad1_ Net-_SC12-Pad3_ Net-_SC1-Pad3_ Net-_U1-Pad12_ CMOS_INVTR		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4068B/CD4068B.cir.out b/library/SubcircuitLibrary/CD4068B/CD4068B.cir.out
new file mode 100644
index 000000000..d515e7f4a
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CD4068B.cir.out
@@ -0,0 +1,47 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cd4068b/cd4068b.cir
+
+.include CMOS_INVTR.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc6 net-_sc6-pad1_ net-_sc1-pad2_ net-_sc12-pad3_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc7 net-_sc7-pad1_ net-_sc2-pad2_ net-_sc6-pad1_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc8 net-_sc8-pad1_ net-_sc4-pad2_ net-_sc7-pad1_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc9 net-_sc1-pad1_ net-_sc10-pad2_ net-_sc8-pad1_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc10 net-_sc1-pad1_ net-_sc10-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad1_ net-_sc4-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc12 net-_sc12-pad1_ net-_sc12-pad2_ net-_sc12-pad3_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc13 net-_sc13-pad1_ net-_sc13-pad2_ net-_sc12-pad1_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc14 net-_sc14-pad1_ net-_sc11-pad2_ net-_sc13-pad1_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc15 net-_sc11-pad1_ net-_sc15-pad2_ net-_sc14-pad1_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc16 net-_sc11-pad1_ net-_sc15-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc11 net-_sc11-pad1_ net-_sc11-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc5 net-_sc11-pad1_ net-_sc13-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc3 net-_sc11-pad1_ net-_sc12-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+x9 net-_sc17-pad1_ net-_sc12-pad3_ net-_sc1-pad3_ net-_x10-pad1_ CMOS_INVTR
+x10 net-_x10-pad1_ net-_sc12-pad3_ net-_sc1-pad3_ net-_u1-pad11_ CMOS_INVTR
+x1 net-_u1-pad1_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc1-pad2_ CMOS_INVTR
+x2 net-_u1-pad2_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc2-pad2_ CMOS_INVTR
+x3 net-_u1-pad3_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc4-pad2_ CMOS_INVTR
+x4 net-_u1-pad4_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc10-pad2_ CMOS_INVTR
+x5 net-_u1-pad5_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc12-pad2_ CMOS_INVTR
+x6 net-_u1-pad6_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc13-pad2_ CMOS_INVTR
+x7 net-_u1-pad7_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc11-pad2_ CMOS_INVTR
+x8 net-_u1-pad8_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc15-pad2_ CMOS_INVTR
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_sc12-pad3_ net-_sc1-pad3_ net-_u1-pad11_ net-_u1-pad12_ port
+xsc17 net-_sc17-pad1_ net-_sc1-pad1_ net-_sc12-pad3_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc20 net-_sc17-pad1_ net-_sc11-pad1_ net-_sc12-pad3_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc18 net-_sc17-pad1_ net-_sc1-pad1_ net-_sc18-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc19 net-_sc18-pad3_ net-_sc11-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+x11 net-_sc17-pad1_ net-_sc12-pad3_ net-_sc1-pad3_ net-_u1-pad12_ CMOS_INVTR
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4068B/CD4068B.pro b/library/SubcircuitLibrary/CD4068B/CD4068B.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CD4068B.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4068B/CD4068B.sch b/library/SubcircuitLibrary/CD4068B/CD4068B.sch
new file mode 100644
index 000000000..686cc9b6c
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CD4068B.sch
@@ -0,0 +1,900 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
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+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
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+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
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+LIBS:eSim_Power
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+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
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+EELAYER END
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+F 3 "" H 10650 3500 60  0000 C CNN
+	11   10650 3500
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+F 1 "PORT" H 10650 3850 30  0000 C CNN
+F 2 "" H 10650 3850 60  0000 C CNN
+F 3 "" H 10650 3850 60  0000 C CNN
+	12   10650 3850
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+F 1 "PORT" H 4900 600 30  0000 C CNN
+F 2 "" H 4900 600 60  0000 C CNN
+F 3 "" H 4900 600 60  0000 C CNN
+	9    4900 600 
+	-1   0    0    -1  
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+F 1 "PORT" H 5700 7700 30  0000 C CNN
+F 2 "" H 5700 7700 60  0000 C CNN
+F 3 "" H 5700 7700 60  0000 C CNN
+	10   5700 7700
+	-1   0    0    -1  
+$EndComp
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+F 0 "SC17" H 5400 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5650 2687 50  0000 R CNN
+F 2 "" H 5350 1100 50  0001 C CNN
+F 3 "" H 5350 2600 50  0001 C CNN
+	1    5350 2600
+	1    0    0    -1  
+$EndComp
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+F 1 "sky130_fd_pr__pfet_01v8" H 6300 2687 50  0000 R CNN
+F 2 "" H 6000 1100 50  0001 C CNN
+F 3 "" H 6000 2600 50  0001 C CNN
+	1    6000 2600
+	-1   0    0    -1  
+$EndComp
+$Comp
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+F 0 "SC18" H 5550 3700 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5800 3487 50  0000 R CNN
+F 2 "" H 5500 1900 50  0001 C CNN
+F 3 "" H 5500 3400 50  0001 C CNN
+	1    5500 3400
+	1    0    0    -1  
+$EndComp
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+F 2 "" H 5900 2550 50  0001 C CNN
+F 3 "" H 5900 4050 50  0001 C CNN
+	1    5900 4050
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+	5600 2600 5600 2300
+Connection ~ 5600 2300
+Wire Wire Line
+	5900 2600 5750 2600
+Wire Wire Line
+	5750 2600 5750 2300
+Connection ~ 5750 2300
+Wire Wire Line
+	5700 1650 5700 2300
+Connection ~ 5700 2300
+Wire Wire Line
+	8750 1650 8750 3350
+Connection ~ 5700 1650
+Wire Wire Line
+	7200 3350 7200 1650
+Connection ~ 7200 1650
+Wire Wire Line
+	4650 600  4450 600 
+Connection ~ 4450 600 
+Wire Wire Line
+	1350 1000 1200 1000
+Wire Wire Line
+	1200 1000 1200 7700
+Wire Wire Line
+	1350 1500 1200 1500
+Connection ~ 1200 1500
+Wire Wire Line
+	1350 2000 1200 2000
+Connection ~ 1200 2000
+Wire Wire Line
+	1350 2500 1200 2500
+Connection ~ 1200 2500
+Wire Wire Line
+	1200 4050 5800 4050
+Wire Wire Line
+	4300 4050 4300 3950
+Wire Wire Line
+	4200 3650 4350 3650
+Wire Wire Line
+	4350 3650 4350 4050
+Connection ~ 4300 4050
+Wire Wire Line
+	3600 3950 3600 4050
+Connection ~ 3600 4050
+Wire Wire Line
+	3500 3650 3650 3650
+Wire Wire Line
+	3650 3650 3650 4050
+Connection ~ 3650 4050
+Wire Wire Line
+	2900 3950 2900 4050
+Connection ~ 2900 4050
+Wire Wire Line
+	2800 3650 2950 3650
+Wire Wire Line
+	2950 3650 2950 4050
+Connection ~ 2950 4050
+Wire Wire Line
+	2200 3950 2200 4050
+Connection ~ 2200 4050
+Wire Wire Line
+	2100 3650 2250 3650
+Wire Wire Line
+	2250 3650 2250 4050
+Connection ~ 2250 4050
+Wire Wire Line
+	1200 7700 5450 7700
+Wire Wire Line
+	5300 7700 5300 7600
+Connection ~ 1200 4050
+Wire Wire Line
+	5200 7300 5350 7300
+Wire Wire Line
+	5350 7300 5350 7700
+Connection ~ 5300 7700
+Wire Wire Line
+	4600 7600 4600 7700
+Connection ~ 4600 7700
+Wire Wire Line
+	4500 7300 4650 7300
+Wire Wire Line
+	4650 7300 4650 7700
+Connection ~ 4650 7700
+Wire Wire Line
+	3900 7600 3900 7700
+Connection ~ 3900 7700
+Wire Wire Line
+	3800 7300 3950 7300
+Wire Wire Line
+	3950 7300 3950 7700
+Connection ~ 3950 7700
+Wire Wire Line
+	3200 7600 3200 7700
+Connection ~ 3200 7700
+Wire Wire Line
+	3100 7300 3250 7300
+Wire Wire Line
+	3250 7300 3250 7700
+Connection ~ 3250 7700
+Connection ~ 5350 7700
+Wire Wire Line
+	2800 4750 1200 4750
+Connection ~ 1200 4750
+Wire Wire Line
+	2800 5250 1200 5250
+Connection ~ 1200 5250
+Wire Wire Line
+	2800 5750 1200 5750
+Connection ~ 1200 5750
+Wire Wire Line
+	2800 6250 1200 6250
+Connection ~ 1200 6250
+Wire Wire Line
+	5550 4050 5550 4400
+Wire Wire Line
+	5550 4400 8750 4400
+Wire Wire Line
+	8750 4400 8750 3650
+Connection ~ 4350 4050
+Wire Wire Line
+	7200 3650 7200 4400
+Connection ~ 7200 4400
+Wire Wire Line
+	5700 4350 5700 4400
+Connection ~ 5700 4400
+Connection ~ 5550 4050
+Wire Wire Line
+	5600 3400 6000 3400
+Wire Wire Line
+	6000 3400 6000 4400
+Connection ~ 6000 4400
+$Comp
+L SKY130mode scmode1
+U 1 1 685BA6E8
+P 8750 5150
+F 0 "scmode1" H 8750 5300 98  0000 C CNB
+F 1 "SKY130mode" H 8750 5050 118 0000 C CNB
+F 2 "" H 8750 5300 60  0001 C CNN
+F 3 "" H 8750 5300 60  0001 C CNN
+	1    8750 5150
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X11
+U 1 1 685B8BEB
+P 8900 4300
+F 0 "X11" H 8900 4300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 9000 4050 60  0000 C CNN
+F 2 "" H 8900 4300 60  0001 C CNN
+F 3 "" H 8900 4300 60  0001 C CNN
+	1    8900 4300
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	9700 4300 10400 4300
+Wire Wire Line
+	10400 4300 10400 3850
+Wire Wire Line
+	8250 4150 8250 1650
+Connection ~ 8250 1650
+Wire Wire Line
+	7050 4300 8250 4300
+Wire Wire Line
+	8250 4450 8250 4400
+Connection ~ 8250 4400
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4068B/CD4068B.sub b/library/SubcircuitLibrary/CD4068B/CD4068B.sub
new file mode 100644
index 000000000..ebf5fb5d2
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CD4068B.sub
@@ -0,0 +1,41 @@
+* Subcircuit CD4068B
+.subckt CD4068B net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_sc12-pad3_ net-_sc1-pad3_ net-_u1-pad11_ net-_u1-pad12_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cd4068b/cd4068b.cir
+.include CMOS_INVTR.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc6 net-_sc6-pad1_ net-_sc1-pad2_ net-_sc12-pad3_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc7 net-_sc7-pad1_ net-_sc2-pad2_ net-_sc6-pad1_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc8 net-_sc8-pad1_ net-_sc4-pad2_ net-_sc7-pad1_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc9 net-_sc1-pad1_ net-_sc10-pad2_ net-_sc8-pad1_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc10 net-_sc1-pad1_ net-_sc10-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad1_ net-_sc4-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc12 net-_sc12-pad1_ net-_sc12-pad2_ net-_sc12-pad3_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc13 net-_sc13-pad1_ net-_sc13-pad2_ net-_sc12-pad1_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc14 net-_sc14-pad1_ net-_sc11-pad2_ net-_sc13-pad1_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc15 net-_sc11-pad1_ net-_sc15-pad2_ net-_sc14-pad1_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc16 net-_sc11-pad1_ net-_sc15-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc11 net-_sc11-pad1_ net-_sc11-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc5 net-_sc11-pad1_ net-_sc13-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc3 net-_sc11-pad1_ net-_sc12-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+x9 net-_sc17-pad1_ net-_sc12-pad3_ net-_sc1-pad3_ net-_x10-pad1_ CMOS_INVTR
+x10 net-_x10-pad1_ net-_sc12-pad3_ net-_sc1-pad3_ net-_u1-pad11_ CMOS_INVTR
+x1 net-_u1-pad1_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc1-pad2_ CMOS_INVTR
+x2 net-_u1-pad2_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc2-pad2_ CMOS_INVTR
+x3 net-_u1-pad3_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc4-pad2_ CMOS_INVTR
+x4 net-_u1-pad4_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc10-pad2_ CMOS_INVTR
+x5 net-_u1-pad5_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc12-pad2_ CMOS_INVTR
+x6 net-_u1-pad6_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc13-pad2_ CMOS_INVTR
+x7 net-_u1-pad7_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc11-pad2_ CMOS_INVTR
+x8 net-_u1-pad8_ net-_sc12-pad3_ net-_sc1-pad3_ net-_sc15-pad2_ CMOS_INVTR
+xsc17 net-_sc17-pad1_ net-_sc1-pad1_ net-_sc12-pad3_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc20 net-_sc17-pad1_ net-_sc11-pad1_ net-_sc12-pad3_ net-_sc12-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc18 net-_sc17-pad1_ net-_sc1-pad1_ net-_sc18-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc19 net-_sc18-pad3_ net-_sc11-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+x11 net-_sc17-pad1_ net-_sc12-pad3_ net-_sc1-pad3_ net-_u1-pad12_ CMOS_INVTR
+* Control Statements
+
+.ends CD4068B
diff --git a/library/SubcircuitLibrary/CD4068B/CD4068B_Previous_Values.xml b/library/SubcircuitLibrary/CD4068B/CD4068B_Previous_Values.xml
new file mode 100644
index 000000000..9c603a591
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CD4068B_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc6><field>w=3 l=0.15</field></sc6><sc7><field>w=3 l=0.15</field></sc7><sc8><field>w=3 l=0.15</field></sc8><sc9><field>w=3 l=0.15</field></sc9><sc10><field>w=1 l=0.15</field></sc10><sc4><field>w=1 l=0.15</field></sc4><sc2><field>w=1 l=0.15</field></sc2><sc1><field>w=1 l=0.15</field></sc1><sc12><field>w=3 l=0.15</field></sc12><sc13><field>w=3 l=0.15</field></sc13><sc14><field>w=3 l=0.15</field></sc14><sc15><field>w=3 l=0.15</field></sc15><sc16><field>w=1 l=0.15</field></sc16><sc11><field>w=1 l=0.15</field></sc11><sc5><field>w=1 l=0.15</field></sc5><sc3><field>w=1 l=0.15</field></sc3><sc17><field>w=3 l=0.15</field></sc17><sc20><field>w=3 l=0.15</field></sc20><sc18><field>w=1 l=0.15</field></sc18><sc19><field>w=1 l=0.15</field></sc19></devicemodel><subcircuit><x9><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x9><x10><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x10><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x2><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x3><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x4><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x5><x6><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x6><x7><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x7><x8><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x8><x11><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x11></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4068B/CMOS_INVTR-cache.lib b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.cir b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.cir
new file mode 100644
index 000000000..d2199ddbb
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR/CMOS_INVTR.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Fri Jun 13 08:49:20 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.cir.out b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.cir.out
new file mode 100644
index 000000000..dec1c5fa5
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_invtr/cmos_invtr.cir
+
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.pro b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.sch b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.sch
new file mode 100644
index 000000000..aa7a7ee81
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.sch
@@ -0,0 +1,161 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 684B982F
+P 5350 2950
+F 0 "SC1" H 5400 3250 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5650 3037 50  0000 R CNN
+F 2 "" H 5350 1450 50  0001 C CNN
+F 3 "" H 5350 2950 50  0001 C CNN
+	1    5350 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684B9856
+P 5350 3800
+F 0 "SC2" H 5400 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5650 3887 50  0000 R CNN
+F 2 "" H 5350 2300 50  0001 C CNN
+F 3 "" H 5350 3800 50  0001 C CNN
+	1    5350 3800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684B98AD
+P 4550 3300
+F 0 "U1" H 4600 3400 30  0000 C CNN
+F 1 "PORT" H 4550 3300 30  0000 C CNN
+F 2 "" H 4550 3300 60  0000 C CNN
+F 3 "" H 4550 3300 60  0000 C CNN
+	1    4550 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684B98D8
+P 6300 3350
+F 0 "U1" H 6350 3450 30  0000 C CNN
+F 1 "PORT" H 6300 3350 30  0000 C CNN
+F 2 "" H 6300 3350 60  0000 C CNN
+F 3 "" H 6300 3350 60  0000 C CNN
+	4    6300 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684B9935
+P 5300 4350
+F 0 "U1" H 5350 4450 30  0000 C CNN
+F 1 "PORT" H 5300 4350 30  0000 C CNN
+F 2 "" H 5300 4350 60  0000 C CNN
+F 3 "" H 5300 4350 60  0000 C CNN
+	3    5300 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684B999A
+P 5300 2350
+F 0 "U1" H 5350 2450 30  0000 C CNN
+F 1 "PORT" H 5300 2350 30  0000 C CNN
+F 2 "" H 5300 2350 60  0000 C CNN
+F 3 "" H 5300 2350 60  0000 C CNN
+	2    5300 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684B99CD
+P 7950 3000
+F 0 "scmode1" H 7950 3150 98  0000 C CNB
+F 1 "SKY130mode" H 7950 2900 118 0000 C CNB
+F 2 "" H 7950 3150 60  0001 C CNN
+F 3 "" H 7950 3150 60  0001 C CNN
+	1    7950 3000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5550 2650 5550 2350
+Wire Wire Line
+	5450 2950 5600 2950
+Wire Wire Line
+	5600 2950 5600 2550
+Wire Wire Line
+	5600 2550 5550 2550
+Connection ~ 5550 2550
+Wire Wire Line
+	5550 3250 5550 3500
+Wire Wire Line
+	6050 3350 5550 3350
+Connection ~ 5550 3350
+Wire Wire Line
+	5050 2950 5050 3800
+Wire Wire Line
+	4800 3300 5050 3300
+Connection ~ 5050 3300
+Wire Wire Line
+	5450 3800 5600 3800
+Wire Wire Line
+	5600 3800 5600 4150
+Wire Wire Line
+	5600 4150 5550 4150
+Wire Wire Line
+	5550 4100 5550 4350
+Connection ~ 5550 4150
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.sub b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.sub
new file mode 100644
index 000000000..8283bca86
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR.sub
@@ -0,0 +1,11 @@
+* Subcircuit CMOS_INVTR
+.subckt CMOS_INVTR net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_invtr/cmos_invtr.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends CMOS_INVTR
diff --git a/library/SubcircuitLibrary/CD4068B/CMOS_INVTR_Previous_Values.xml b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR_Previous_Values.xml
new file mode 100644
index 000000000..d17c4f93e
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/CMOS_INVTR_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3, l=0.15</field></sc1><sc2><field>w=1, l=0.15</field></sc2></devicemodel><subcircuit /></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/CD4068B/analysis b/library/SubcircuitLibrary/CD4068B/analysis
new file mode 100644
index 000000000..ebd5c0a94
--- /dev/null
+++ b/library/SubcircuitLibrary/CD4068B/analysis
@@ -0,0 +1 @@
+.tran 0e-00 0e-00 0e-00
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/2_in_and-cache.lib b/library/SubcircuitLibrary/SN54L98/2_in_and-cache.lib
new file mode 100644
index 000000000..cd4456570
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/2_in_and-cache.lib
@@ -0,0 +1,94 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 300 0 50 0 1 0 N
+P 2 0 1 0 -200 150 250 0 N
+P 3 0 1 0 -200 150 -200 -150 250 0 N
+X in 1 -400 0 200 R 50 50 1 1 I
+X Vdd 2 -400 100 200 R 50 50 1 1 I
+X Gnd 3 -400 -100 200 R 50 50 1 1 I
+X Out 4 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NAND_2
+#
+DEF NAND_2 X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "NAND_2" 50 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 100 0 206 760 -760 0 1 0 N 150 200 150 -200
+C 350 0 50 0 1 0 N
+P 2 0 1 0 -200 200 150 200 N
+P 3 0 1 0 -200 200 -200 -200 150 -200 N
+X in1 1 -400 50 200 R 50 50 1 1 I
+X Gnd 2 -400 -150 200 R 50 50 1 1 I
+X Vdd 3 -400 150 200 R 50 50 1 1 I
+X out 4 600 0 200 L 50 50 1 1 O
+X in2 5 -400 -50 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L98/2_in_and.bak b/library/SubcircuitLibrary/SN54L98/2_in_and.bak
new file mode 100644
index 000000000..4c88f6efd
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/2_in_and.bak
@@ -0,0 +1,151 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L NAND_2 X1
+U 1 1 686CC211
+P 5400 3000
+F 0 "X1" H 5500 3000 60  0000 C CNN
+F 1 "NAND_2" H 5450 2750 60  0000 C CNN
+F 2 "" H 5400 3000 60  0001 C CNN
+F 3 "" H 5400 3000 60  0001 C CNN
+	1    5400 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 686CC23B
+P 6400 3000
+F 0 "X2" H 6400 3000 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6450 2800 60  0000 C CNN
+F 2 "" H 6400 3000 60  0001 C CNN
+F 3 "" H 6400 3000 60  0001 C CNN
+	1    6400 3000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4950 2900 6000 2900
+Wire Wire Line
+	5000 2900 5000 2850
+Wire Wire Line
+	4950 3100 6000 3100
+Wire Wire Line
+	5000 3100 5000 3150
+$Comp
+L PORT U1
+U 1 1 686CC270
+P 4600 2850
+F 0 "U1" H 4650 2950 30  0000 C CNN
+F 1 "PORT" H 4600 2850 30  0000 C CNN
+F 2 "" H 4600 2850 60  0000 C CNN
+F 3 "" H 4600 2850 60  0000 C CNN
+	1    4600 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686CC2D9
+P 4750 2950
+F 0 "U1" H 4800 3050 30  0000 C CNN
+F 1 "PORT" H 4750 2950 30  0000 C CNN
+F 2 "" H 4750 2950 60  0000 C CNN
+F 3 "" H 4750 2950 60  0000 C CNN
+	3    4750 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686CC2FC
+P 4750 3050
+F 0 "U1" H 4800 3150 30  0000 C CNN
+F 1 "PORT" H 4750 3050 30  0000 C CNN
+F 2 "" H 4750 3050 60  0000 C CNN
+F 3 "" H 4750 3050 60  0000 C CNN
+	4    4750 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686CC31D
+P 4600 3150
+F 0 "U1" H 4650 3250 30  0000 C CNN
+F 1 "PORT" H 4600 3150 30  0000 C CNN
+F 2 "" H 4600 3150 60  0000 C CNN
+F 3 "" H 4600 3150 60  0000 C CNN
+	2    4600 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686CC342
+P 7200 3000
+F 0 "U1" H 7250 3100 30  0000 C CNN
+F 1 "PORT" H 7200 3000 30  0000 C CNN
+F 2 "" H 7200 3000 60  0000 C CNN
+F 3 "" H 7200 3000 60  0000 C CNN
+	5    7200 3000
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4850 2850 4950 2850
+Wire Wire Line
+	4950 2850 4950 2900
+Connection ~ 5000 2900
+Wire Wire Line
+	4850 3150 4950 3150
+Wire Wire Line
+	4950 3150 4950 3100
+Connection ~ 5000 3100
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/2_in_and.cir b/library/SubcircuitLibrary/SN54L98/2_in_and.cir
new file mode 100644
index 000000000..8a30412ec
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/2_in_and.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/2_in_and/2_in_and.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Tue Jul  8 12:32:28 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad3_ Net-_U1-Pad2_ Net-_U1-Pad1_ Net-_X1-Pad4_ Net-_U1-Pad4_ NAND_2		
+X2  Net-_X1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad5_ CMOS_INVTR		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/2_in_and.cir.out b/library/SubcircuitLibrary/SN54L98/2_in_and.cir.out
new file mode 100644
index 000000000..b2bc03524
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/2_in_and.cir.out
@@ -0,0 +1,18 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/2_in_and/2_in_and.cir
+
+.include CMOS_INVTR.sub
+.include NAND_2.sub
+
+x1 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad1_ net-_x1-pad4_ net-_u1-pad4_ NAND_2
+x2 net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad5_ CMOS_INVTR
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/2_in_and.pro b/library/SubcircuitLibrary/SN54L98/2_in_and.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/2_in_and.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L98/2_in_and.sch b/library/SubcircuitLibrary/SN54L98/2_in_and.sch
new file mode 100644
index 000000000..e2a29248f
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/2_in_and.sch
@@ -0,0 +1,162 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L NAND_2 X1
+U 1 1 686CC211
+P 5400 3000
+F 0 "X1" H 5500 3000 60  0000 C CNN
+F 1 "NAND_2" H 5450 2750 60  0000 C CNN
+F 2 "" H 5400 3000 60  0001 C CNN
+F 3 "" H 5400 3000 60  0001 C CNN
+	1    5400 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 686CC23B
+P 6400 3000
+F 0 "X2" H 6400 3000 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6450 2800 60  0000 C CNN
+F 2 "" H 6400 3000 60  0001 C CNN
+F 3 "" H 6400 3000 60  0001 C CNN
+	1    6400 3000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4950 2900 6000 2900
+Wire Wire Line
+	5000 2900 5000 2850
+Wire Wire Line
+	4950 3100 6000 3100
+Wire Wire Line
+	5000 3100 5000 3150
+$Comp
+L PORT U1
+U 1 1 686CC270
+P 4600 2850
+F 0 "U1" H 4650 2950 30  0000 C CNN
+F 1 "PORT" H 4600 2850 30  0000 C CNN
+F 2 "" H 4600 2850 60  0000 C CNN
+F 3 "" H 4600 2850 60  0000 C CNN
+	1    4600 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686CC2D9
+P 4750 2950
+F 0 "U1" H 4800 3050 30  0000 C CNN
+F 1 "PORT" H 4750 2950 30  0000 C CNN
+F 2 "" H 4750 2950 60  0000 C CNN
+F 3 "" H 4750 2950 60  0000 C CNN
+	3    4750 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686CC2FC
+P 4750 3050
+F 0 "U1" H 4800 3150 30  0000 C CNN
+F 1 "PORT" H 4750 3050 30  0000 C CNN
+F 2 "" H 4750 3050 60  0000 C CNN
+F 3 "" H 4750 3050 60  0000 C CNN
+	4    4750 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686CC31D
+P 4600 3150
+F 0 "U1" H 4650 3250 30  0000 C CNN
+F 1 "PORT" H 4600 3150 30  0000 C CNN
+F 2 "" H 4600 3150 60  0000 C CNN
+F 3 "" H 4600 3150 60  0000 C CNN
+	2    4600 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686CC342
+P 7200 3000
+F 0 "U1" H 7250 3100 30  0000 C CNN
+F 1 "PORT" H 7200 3000 30  0000 C CNN
+F 2 "" H 7200 3000 60  0000 C CNN
+F 3 "" H 7200 3000 60  0000 C CNN
+	5    7200 3000
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4850 2850 4950 2850
+Wire Wire Line
+	4950 2850 4950 2900
+Connection ~ 5000 2900
+Wire Wire Line
+	4850 3150 4950 3150
+Wire Wire Line
+	4950 3150 4950 3100
+Connection ~ 5000 3100
+$Comp
+L SKY130mode scmode1
+U 1 1 686CC4AC
+P 8250 3200
+F 0 "scmode1" H 8250 3350 98  0000 C CNB
+F 1 "SKY130mode" H 8250 3100 118 0000 C CNB
+F 2 "" H 8250 3350 60  0001 C CNN
+F 3 "" H 8250 3350 60  0001 C CNN
+	1    8250 3200
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/2_in_and.sub b/library/SubcircuitLibrary/SN54L98/2_in_and.sub
new file mode 100644
index 000000000..6c2a85281
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/2_in_and.sub
@@ -0,0 +1,12 @@
+* Subcircuit 2_in_and
+.subckt 2_in_and net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/2_in_and/2_in_and.cir
+.include CMOS_INVTR.sub
+.include NAND_2.sub
+
+x1 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad1_ net-_x1-pad4_ net-_u1-pad4_ NAND_2
+x2 net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad5_ CMOS_INVTR
+* s c m o d e
+* Control Statements
+
+.ends 2_in_and
diff --git a/library/SubcircuitLibrary/SN54L98/2_in_and_Previous_Values.xml b/library/SubcircuitLibrary/SN54L98/2_in_and_Previous_Values.xml
new file mode 100644
index 000000000..ecb007d93
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/2_in_and_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x2></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_Buf-cache.lib b/library/SubcircuitLibrary/SN54L98/CMOS_Buf-cache.lib
new file mode 100644
index 000000000..a4da279a5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_Buf-cache.lib
@@ -0,0 +1,74 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 300 0 50 0 1 0 N
+P 2 0 1 0 -200 150 250 0 N
+P 3 0 1 0 -200 150 -200 -150 250 0 N
+X in 1 -400 0 200 R 50 50 1 1 I
+X Vdd 2 -400 100 200 R 50 50 1 1 I
+X Gnd 3 -400 -100 200 R 50 50 1 1 I
+X Out 4 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_Buf-rescue.lib b/library/SubcircuitLibrary/SN54L98/CMOS_Buf-rescue.lib
new file mode 100644
index 000000000..2e8cabd8d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_Buf-rescue.lib
@@ -0,0 +1,22 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR-RESCUE-CMOS_Buf
+#
+DEF CMOS_INVTR-RESCUE-CMOS_Buf X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR-RESCUE-CMOS_Buf" 100 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 550 0 50 0 1 0 N
+P 2 0 1 0 -450 250 500 0 N
+P 3 0 1 0 -450 250 -450 -250 500 0 N
+X IN 1 -650 0 200 R 50 50 1 1 I
+X VDD 2 -650 150 200 R 50 50 1 1 I
+X GND 3 -650 -150 200 R 50 50 1 1 I
+X OUT 4 800 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_Buf.bak b/library/SubcircuitLibrary/SN54L98/CMOS_Buf.bak
new file mode 100644
index 000000000..18c8ff97d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_Buf.bak
@@ -0,0 +1,149 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L CMOS_INVTR X1
+U 1 1 68655F03
+P 4950 3300
+F 0 "X1" H 4950 3300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5050 3050 60  0000 C CNN
+F 2 "" H 4950 3300 60  0001 C CNN
+F 3 "" H 4950 3300 60  0001 C CNN
+	1    4950 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 68655F1A
+P 6500 3300
+F 0 "X2" H 6500 3300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6600 3050 60  0000 C CNN
+F 2 "" H 6500 3300 60  0001 C CNN
+F 3 "" H 6500 3300 60  0001 C CNN
+	1    6500 3300
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5750 3300 5850 3300
+Wire Wire Line
+	4300 3150 4300 3050
+Wire Wire Line
+	4200 3050 5850 3050
+Wire Wire Line
+	5850 3050 5850 3150
+Wire Wire Line
+	4300 3450 4300 3550
+Wire Wire Line
+	4200 3550 5850 3550
+Wire Wire Line
+	5850 3550 5850 3450
+$Comp
+L PORT U1
+U 1 1 68655FBD
+P 3950 3050
+F 0 "U1" H 4000 3150 30  0000 C CNN
+F 1 "PORT" H 3950 3050 30  0000 C CNN
+F 2 "" H 3950 3050 60  0000 C CNN
+F 3 "" H 3950 3050 60  0000 C CNN
+	1    3950 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68655FF0
+P 4050 3300
+F 0 "U1" H 4100 3400 30  0000 C CNN
+F 1 "PORT" H 4050 3300 30  0000 C CNN
+F 2 "" H 4050 3300 60  0000 C CNN
+F 3 "" H 4050 3300 60  0000 C CNN
+	3    4050 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68656163
+P 3950 3550
+F 0 "U1" H 4000 3650 30  0000 C CNN
+F 1 "PORT" H 3950 3550 30  0000 C CNN
+F 2 "" H 3950 3550 60  0000 C CNN
+F 3 "" H 3950 3550 60  0000 C CNN
+	2    3950 3550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68656242
+P 7550 3300
+F 0 "U1" H 7600 3400 30  0000 C CNN
+F 1 "PORT" H 7550 3300 30  0000 C CNN
+F 2 "" H 7550 3300 60  0000 C CNN
+F 3 "" H 7550 3300 60  0000 C CNN
+	4    7550 3300
+	-1   0    0    -1  
+$EndComp
+Connection ~ 4300 3050
+Connection ~ 4300 3550
+$Comp
+L SKY130mode scmode1
+U 1 1 68656379
+P 7900 4200
+F 0 "scmode1" H 7900 4350 98  0000 C CNB
+F 1 "SKY130mode" H 7900 4100 118 0000 C CNB
+F 2 "" H 7900 4350 60  0001 C CNN
+F 3 "" H 7900 4350 60  0001 C CNN
+	1    7900 4200
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_Buf.cir b/library/SubcircuitLibrary/SN54L98/CMOS_Buf.cir
new file mode 100644
index 000000000..a1907752c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_Buf.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_Buf/CMOS_Buf.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sun Jul  6 10:50:24 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ PORT		
+scmode1  SKY130mode		
+X1  Net-_U1-Pad3_ Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_X1-Pad4_ CMOS_INVTR		
+X2  Net-_X1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad4_ CMOS_INVTR		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_Buf.cir.out b/library/SubcircuitLibrary/SN54L98/CMOS_Buf.cir.out
new file mode 100644
index 000000000..c1aedf115
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_Buf.cir.out
@@ -0,0 +1,23 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_buf/cmos_buf.cir
+
+.include CMOS_INVTR.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ port
+* s c m o d e
+x1 net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad2_ net-_x1-pad4_ CMOS_INVTR
+x2 net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad4_ CMOS_INVTR
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_Buf.pro b/library/SubcircuitLibrary/SN54L98/CMOS_Buf.pro
new file mode 100644
index 000000000..78fa1002c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_Buf.pro
@@ -0,0 +1,74 @@
+update=Sun Jul  6 10:49:25 2025
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=CMOS_Buf-rescue
+LibName2=adc-dac
+LibName3=memory
+LibName4=xilinx
+LibName5=microcontrollers
+LibName6=dsp
+LibName7=microchip
+LibName8=analog_switches
+LibName9=motorola
+LibName10=texas
+LibName11=intel
+LibName12=audio
+LibName13=interface
+LibName14=digital-audio
+LibName15=philips
+LibName16=display
+LibName17=cypress
+LibName18=siliconi
+LibName19=opto
+LibName20=atmel
+LibName21=contrib
+LibName22=power
+LibName23=eSim_Plot
+LibName24=transistors
+LibName25=conn
+LibName26=eSim_User
+LibName27=regul
+LibName28=74xx
+LibName29=cmos4000
+LibName30=eSim_Analog
+LibName31=eSim_Devices
+LibName32=eSim_Digital
+LibName33=eSim_Hybrid
+LibName34=eSim_Miscellaneous
+LibName35=eSim_Power
+LibName36=eSim_Sources
+LibName37=eSim_Subckt
+LibName38=eSim_Nghdl
+LibName39=eSim_Ngveri
+LibName40=eSim_SKY130
+LibName41=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_Buf.sch b/library/SubcircuitLibrary/SN54L98/CMOS_Buf.sch
new file mode 100644
index 000000000..0cdb5a05c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_Buf.sch
@@ -0,0 +1,151 @@
+EESchema Schematic File Version 2
+LIBS:CMOS_Buf-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:CMOS_Buf-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L PORT U1
+U 1 1 68655FBD
+P 3950 3050
+F 0 "U1" H 4000 3150 30  0000 C CNN
+F 1 "PORT" H 3950 3050 30  0000 C CNN
+F 2 "" H 3950 3050 60  0000 C CNN
+F 3 "" H 3950 3050 60  0000 C CNN
+	1    3950 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68655FF0
+P 4050 3300
+F 0 "U1" H 4100 3400 30  0000 C CNN
+F 1 "PORT" H 4050 3300 30  0000 C CNN
+F 2 "" H 4050 3300 60  0000 C CNN
+F 3 "" H 4050 3300 60  0000 C CNN
+	3    4050 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68656163
+P 3950 3550
+F 0 "U1" H 4000 3650 30  0000 C CNN
+F 1 "PORT" H 3950 3550 30  0000 C CNN
+F 2 "" H 3950 3550 60  0000 C CNN
+F 3 "" H 3950 3550 60  0000 C CNN
+	2    3950 3550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68656242
+P 7050 3300
+F 0 "U1" H 7100 3400 30  0000 C CNN
+F 1 "PORT" H 7050 3300 30  0000 C CNN
+F 2 "" H 7050 3300 60  0000 C CNN
+F 3 "" H 7050 3300 60  0000 C CNN
+	4    7050 3300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 68656379
+P 7900 4200
+F 0 "scmode1" H 7900 4350 98  0000 C CNB
+F 1 "SKY130mode" H 7900 4100 118 0000 C CNB
+F 2 "" H 7900 4350 60  0001 C CNN
+F 3 "" H 7900 4350 60  0001 C CNN
+	1    7900 4200
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X1
+U 1 1 686A07F2
+P 4700 3300
+F 0 "X1" H 4700 3300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 4750 3100 60  0000 C CNN
+F 2 "" H 4700 3300 60  0001 C CNN
+F 3 "" H 4700 3300 60  0001 C CNN
+	1    4700 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 686A0855
+P 6250 3300
+F 0 "X2" H 6250 3300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6300 3100 60  0000 C CNN
+F 2 "" H 6250 3300 60  0001 C CNN
+F 3 "" H 6250 3300 60  0001 C CNN
+	1    6250 3300
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5250 3300 5850 3300
+Wire Wire Line
+	4300 3050 4300 3200
+Wire Wire Line
+	4200 3050 5850 3050
+Wire Wire Line
+	5850 3050 5850 3200
+Wire Wire Line
+	4300 3400 4300 3550
+Wire Wire Line
+	5850 3550 4200 3550
+Wire Wire Line
+	5850 3400 5850 3550
+Connection ~ 4300 3050
+Connection ~ 4300 3550
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_Buf.sub b/library/SubcircuitLibrary/SN54L98/CMOS_Buf.sub
new file mode 100644
index 000000000..8d50195f6
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_Buf.sub
@@ -0,0 +1,17 @@
+* Subcircuit CMOS_Buf
+.subckt CMOS_Buf net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_buf/cmos_buf.cir
+.include CMOS_INVTR.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+* s c m o d e
+x1 net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad2_ net-_x1-pad4_ CMOS_INVTR
+x2 net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad4_ CMOS_INVTR
+* Control Statements
+
+.ends CMOS_Buf
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_Buf_Previous_Values.xml b/library/SubcircuitLibrary/SN54L98/CMOS_Buf_Previous_Values.xml
new file mode 100644
index 000000000..b0e9c717d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_Buf_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x2></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_INVTR-cache.lib b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.cir b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.cir
new file mode 100644
index 000000000..d89b6087d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR/CMOS_INVTR.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 22:03:21 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.cir.out b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.cir.out
new file mode 100644
index 000000000..4058a1829
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.cir.out
@@ -0,0 +1,22 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_invtr/cmos_invtr.cir
+
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.pro b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.sch b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.sch
new file mode 100644
index 000000000..aa7a7ee81
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.sch
@@ -0,0 +1,161 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 684B982F
+P 5350 2950
+F 0 "SC1" H 5400 3250 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5650 3037 50  0000 R CNN
+F 2 "" H 5350 1450 50  0001 C CNN
+F 3 "" H 5350 2950 50  0001 C CNN
+	1    5350 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684B9856
+P 5350 3800
+F 0 "SC2" H 5400 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5650 3887 50  0000 R CNN
+F 2 "" H 5350 2300 50  0001 C CNN
+F 3 "" H 5350 3800 50  0001 C CNN
+	1    5350 3800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684B98AD
+P 4550 3300
+F 0 "U1" H 4600 3400 30  0000 C CNN
+F 1 "PORT" H 4550 3300 30  0000 C CNN
+F 2 "" H 4550 3300 60  0000 C CNN
+F 3 "" H 4550 3300 60  0000 C CNN
+	1    4550 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684B98D8
+P 6300 3350
+F 0 "U1" H 6350 3450 30  0000 C CNN
+F 1 "PORT" H 6300 3350 30  0000 C CNN
+F 2 "" H 6300 3350 60  0000 C CNN
+F 3 "" H 6300 3350 60  0000 C CNN
+	4    6300 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684B9935
+P 5300 4350
+F 0 "U1" H 5350 4450 30  0000 C CNN
+F 1 "PORT" H 5300 4350 30  0000 C CNN
+F 2 "" H 5300 4350 60  0000 C CNN
+F 3 "" H 5300 4350 60  0000 C CNN
+	3    5300 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684B999A
+P 5300 2350
+F 0 "U1" H 5350 2450 30  0000 C CNN
+F 1 "PORT" H 5300 2350 30  0000 C CNN
+F 2 "" H 5300 2350 60  0000 C CNN
+F 3 "" H 5300 2350 60  0000 C CNN
+	2    5300 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684B99CD
+P 7950 3000
+F 0 "scmode1" H 7950 3150 98  0000 C CNB
+F 1 "SKY130mode" H 7950 2900 118 0000 C CNB
+F 2 "" H 7950 3150 60  0001 C CNN
+F 3 "" H 7950 3150 60  0001 C CNN
+	1    7950 3000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5550 2650 5550 2350
+Wire Wire Line
+	5450 2950 5600 2950
+Wire Wire Line
+	5600 2950 5600 2550
+Wire Wire Line
+	5600 2550 5550 2550
+Connection ~ 5550 2550
+Wire Wire Line
+	5550 3250 5550 3500
+Wire Wire Line
+	6050 3350 5550 3350
+Connection ~ 5550 3350
+Wire Wire Line
+	5050 2950 5050 3800
+Wire Wire Line
+	4800 3300 5050 3300
+Connection ~ 5050 3300
+Wire Wire Line
+	5450 3800 5600 3800
+Wire Wire Line
+	5600 3800 5600 4150
+Wire Wire Line
+	5600 4150 5550 4150
+Wire Wire Line
+	5550 4100 5550 4350
+Connection ~ 5550 4150
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.sub b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.sub
new file mode 100644
index 000000000..9dff1ae3f
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR.sub
@@ -0,0 +1,16 @@
+* Subcircuit CMOS_INVTR
+.subckt CMOS_INVTR net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_invtr/cmos_invtr.cir
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends CMOS_INVTR
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/CMOS_INVTR_Previous_Values.xml b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR_Previous_Values.xml
new file mode 100644
index 000000000..0fa71b2d4
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/CMOS_INVTR_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/DS_blk-cache.lib b/library/SubcircuitLibrary/SN54L98/DS_blk-cache.lib
new file mode 100644
index 000000000..f32a82db2
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/DS_blk-cache.lib
@@ -0,0 +1,147 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# 2_in_and
+#
+DEF 2_in_and X 0 40 Y Y 1 F N
+F0 "X" 50 0 60 H V C CNN
+F1 "2_in_and" 0 -250 60 H V C CNN
+F2 "" 750 -150 60 H I C CNN
+F3 "" 750 -150 60 H I C CNN
+DRAW
+A 50 0 206 760 -760 0 1 0 N 100 200 100 -200
+P 2 0 1 0 -200 200 100 200 N
+P 3 0 1 0 -200 200 -200 -200 100 -200 N
+X Vdd 1 -400 150 200 R 50 50 1 1 I
+X in1 2 -400 50 200 R 50 50 1 1 I
+X in2 3 -400 -50 200 R 50 50 1 1 I
+X Gnd 4 -400 -150 200 R 50 50 1 1 I
+X out 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CMOS_Buf
+#
+DEF CMOS_Buf X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_Buf" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+P 2 0 1 0 -250 150 250 0 N
+P 3 0 1 0 -250 150 -250 -150 250 0 N
+X Vdd 1 -450 100 200 R 50 50 1 1 I
+X Gnd 2 -450 -100 200 R 50 50 1 1 I
+X in 3 -450 0 200 R 50 50 1 1 I
+X Out 4 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 300 0 50 0 1 0 N
+P 2 0 1 0 -200 150 250 0 N
+P 3 0 1 0 -200 150 -200 -150 250 0 N
+X in 1 -400 0 200 R 50 50 1 1 I
+X Vdd 2 -400 100 200 R 50 50 1 1 I
+X Gnd 3 -400 -100 200 R 50 50 1 1 I
+X Out 4 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# D_FF
+#
+DEF D_FF X 0 40 Y Y 1 F N
+F0 "X" 100 100 60 H V C CNN
+F1 "D_FF" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -200 200 200 -150 0 1 0 N
+X D 1 -400 50 200 R 50 50 1 1 I
+X Clk 2 -400 -50 200 R 50 50 1 1 I
+X Vdd 3 0 400 200 D 50 50 1 1 I
+X Gnd 4 0 -350 200 U 50 50 1 1 I
+X Q 5 400 -50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NOR_2
+#
+DEF NOR_2 X 0 40 Y Y 1 F N
+F0 "X" 50 0 60 H V C CNN
+F1 "NOR_2" 0 -250 60 H V C CNN
+F2 "" -100 0 60 H I C CNN
+F3 "" -100 0 60 H I C CNN
+DRAW
+A -350 0 206 760 -760 0 1 0 N -300 200 -300 -200
+A -226 239 445 -996 -324 0 1 0 N -300 -200 150 0
+A -197 -174 388 1054 266 0 1 0 N -300 200 150 0
+C 200 0 50 0 1 0 N
+X in1 1 -350 50 200 R 50 50 1 1 I
+X Gnd 2 -400 -150 200 R 50 50 1 1 I
+X Vdd 3 -400 150 200 R 50 50 1 1 I
+X in2 4 -350 -50 200 R 50 50 1 1 I
+X out 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L98/DS_blk.bak b/library/SubcircuitLibrary/SN54L98/DS_blk.bak
new file mode 100644
index 000000000..367ca003a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/DS_blk.bak
@@ -0,0 +1,280 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:DS_blk-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L 2_in_and X1
+U 1 1 686E8DA4
+P 4450 2650
+F 0 "X1" H 4500 2650 60  0000 C CNN
+F 1 "2_in_and" H 4450 2400 60  0000 C CNN
+F 2 "" H 5200 2500 60  0001 C CNN
+F 3 "" H 5200 2500 60  0001 C CNN
+	1    4450 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L 2_in_and X2
+U 1 1 686E8DC5
+P 4450 3500
+F 0 "X2" H 4500 3500 60  0000 C CNN
+F 1 "2_in_and" H 4450 3250 60  0000 C CNN
+F 2 "" H 5200 3350 60  0001 C CNN
+F 3 "" H 5200 3350 60  0001 C CNN
+	1    4450 3500
+	1    0    0    -1  
+$EndComp
+$Comp
+L NOR_2 X3
+U 1 1 686E8DDE
+P 5750 3050
+F 0 "X3" H 5800 3050 60  0000 C CNN
+F 1 "NOR_2" H 5750 2800 60  0000 C CNN
+F 2 "" H 5650 3050 60  0001 C CNN
+F 3 "" H 5650 3050 60  0001 C CNN
+	1    5750 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L D_FF X4
+U 1 1 686E8E0C
+P 7050 3100
+F 0 "X4" H 7150 3200 60  0000 C CNN
+F 1 "D_FF" H 7050 2900 60  0000 C CNN
+F 2 "" H 7050 3100 60  0001 C CNN
+F 3 "" H 7050 3100 60  0001 C CNN
+	1    7050 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 686E8E39
+P 8550 4100
+F 0 "scmode1" H 8550 4250 98  0000 C CNB
+F 1 "SKY130mode" H 8550 4000 118 0000 C CNB
+F 2 "" H 8550 4250 60  0001 C CNN
+F 3 "" H 8550 4250 60  0001 C CNN
+	1    8550 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686E8E58
+P 3800 2600
+F 0 "U1" H 3850 2700 30  0000 C CNN
+F 1 "PORT" H 3800 2600 30  0000 C CNN
+F 2 "" H 3800 2600 60  0000 C CNN
+F 3 "" H 3800 2600 60  0000 C CNN
+	1    3800 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686E8F0F
+P 3800 2700
+F 0 "U1" H 3850 2800 30  0000 C CNN
+F 1 "PORT" H 3800 2700 30  0000 C CNN
+F 2 "" H 3800 2700 60  0000 C CNN
+F 3 "" H 3800 2700 60  0000 C CNN
+	2    3800 2700
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686E8F53
+P 3800 3450
+F 0 "U1" H 3850 3550 30  0000 C CNN
+F 1 "PORT" H 3800 3450 30  0000 C CNN
+F 2 "" H 3800 3450 60  0000 C CNN
+F 3 "" H 3800 3450 60  0000 C CNN
+	3    3800 3450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686E8F80
+P 3800 3550
+F 0 "U1" H 3850 3650 30  0000 C CNN
+F 1 "PORT" H 3800 3550 30  0000 C CNN
+F 2 "" H 3800 3550 60  0000 C CNN
+F 3 "" H 3800 3550 60  0000 C CNN
+	4    3800 3550
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686E901D
+P 6400 3150
+F 0 "U1" H 6450 3250 30  0000 C CNN
+F 1 "PORT" H 6400 3150 30  0000 C CNN
+F 2 "" H 6400 3150 60  0000 C CNN
+F 3 "" H 6400 3150 60  0000 C CNN
+	5    6400 3150
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 8 1 686E9099
+P 7700 3150
+F 0 "U1" H 7750 3250 30  0000 C CNN
+F 1 "PORT" H 7700 3150 30  0000 C CNN
+F 2 "" H 7700 3150 60  0000 C CNN
+F 3 "" H 7700 3150 60  0000 C CNN
+	8    7700 3150
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686E91B5
+P 7300 2400
+F 0 "U1" H 7350 2500 30  0000 C CNN
+F 1 "PORT" H 7300 2400 30  0000 C CNN
+F 2 "" H 7300 2400 60  0000 C CNN
+F 3 "" H 7300 2400 60  0000 C CNN
+	6    7300 2400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686E922A
+P 7300 3550
+F 0 "U1" H 7350 3650 30  0000 C CNN
+F 1 "PORT" H 7300 3550 30  0000 C CNN
+F 2 "" H 7300 3550 60  0000 C CNN
+F 3 "" H 7300 3550 60  0000 C CNN
+	7    7300 3550
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4900 2650 4900 3000
+Wire Wire Line
+	4900 3000 5400 3000
+Wire Wire Line
+	4900 3500 4900 3100
+Wire Wire Line
+	4900 3100 5400 3100
+Wire Wire Line
+	4050 2400 4050 2500
+Wire Wire Line
+	4050 2400 7050 2400
+Wire Wire Line
+	7050 2400 7050 2700
+Connection ~ 7050 2400
+Connection ~ 7050 3550
+Wire Wire Line
+	4050 3650 4050 3800
+Wire Wire Line
+	4050 3800 7050 3800
+Wire Wire Line
+	7050 3800 7050 3450
+Wire Wire Line
+	5350 2900 5350 2400
+Connection ~ 5350 2400
+Wire Wire Line
+	5350 3200 5350 3800
+Connection ~ 5350 3800
+Wire Wire Line
+	4050 3350 4050 3200
+Wire Wire Line
+	4050 3200 5150 3200
+Wire Wire Line
+	5150 3200 5150 2400
+Connection ~ 5150 2400
+Wire Wire Line
+	4050 2800 4050 2950
+Wire Wire Line
+	4050 2950 5200 2950
+Wire Wire Line
+	5200 2950 5200 3800
+Connection ~ 5200 3800
+$Comp
+L CMOS_Buf X5
+U 1 1 686F47C1
+P 6350 2650
+F 0 "X5" H 6350 2650 60  0000 C CNN
+F 1 "CMOS_Buf" H 6350 2450 60  0000 C CNN
+F 2 "" H 6350 2650 60  0001 C CNN
+F 3 "" H 6350 2650 60  0001 C CNN
+	1    6350 2650
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6200 3050 6200 2900
+Wire Wire Line
+	6200 2900 5800 2900
+Wire Wire Line
+	5800 2900 5800 2650
+Wire Wire Line
+	5800 2650 5900 2650
+Wire Wire Line
+	6800 2650 6850 2650
+Wire Wire Line
+	6850 2650 6850 2850
+Wire Wire Line
+	6850 2850 6650 2850
+Wire Wire Line
+	6650 2850 6650 3050
+Wire Wire Line
+	5900 2550 5900 2400
+Connection ~ 5900 2400
+Wire Wire Line
+	5900 2750 5900 2800
+Wire Wire Line
+	5900 2800 6300 2800
+Wire Wire Line
+	6300 2800 6300 3550
+Wire Wire Line
+	6300 3550 7050 3550
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/DS_blk.cir b/library/SubcircuitLibrary/SN54L98/DS_blk.cir
new file mode 100644
index 000000000..a033859ed
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/DS_blk.cir
@@ -0,0 +1,18 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/DS_blk/DS_blk.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Thu Jul 10 11:45:04 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad6_ Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad7_ Net-_X1-Pad5_ 2_in_and		
+X2  Net-_U1-Pad6_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad7_ Net-_X2-Pad5_ 2_in_and		
+X3  Net-_X1-Pad5_ Net-_U1-Pad7_ Net-_U1-Pad6_ Net-_X2-Pad5_ Net-_X3-Pad5_ NOR_2		
+X4  Net-_X3-Pad5_ Net-_X4-Pad2_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ D_FF		
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ PORT		
+X5  Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad5_ Net-_X5-Pad4_ CMOS_Buf		
+X6  Net-_X5-Pad4_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_X4-Pad2_ CMOS_INVTR		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/DS_blk.cir.out b/library/SubcircuitLibrary/SN54L98/DS_blk.cir.out
new file mode 100644
index 000000000..9cbba8aaf
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/DS_blk.cir.out
@@ -0,0 +1,31 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/ds_blk/ds_blk.cir
+
+.include D_FF.sub
+.include 2_in_and.sub
+.include CMOS_INVTR.sub
+.include NOR_2.sub
+.include CMOS_Buf.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+x1 net-_u1-pad6_ net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad7_ net-_x1-pad5_ 2_in_and
+x2 net-_u1-pad6_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad7_ net-_x2-pad5_ 2_in_and
+x3 net-_x1-pad5_ net-_u1-pad7_ net-_u1-pad6_ net-_x2-pad5_ net-_x3-pad5_ NOR_2
+x4 net-_x3-pad5_ net-_x4-pad2_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ D_FF
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ port
+x5 net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad5_ net-_x5-pad4_ CMOS_Buf
+x6 net-_x5-pad4_ net-_u1-pad6_ net-_u1-pad7_ net-_x4-pad2_ CMOS_INVTR
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/DS_blk.pro b/library/SubcircuitLibrary/SN54L98/DS_blk.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/DS_blk.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L98/DS_blk.sch b/library/SubcircuitLibrary/SN54L98/DS_blk.sch
new file mode 100644
index 000000000..b08a03928
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/DS_blk.sch
@@ -0,0 +1,293 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:DS_blk-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L 2_in_and X1
+U 1 1 686E8DA4
+P 4450 2650
+F 0 "X1" H 4500 2650 60  0000 C CNN
+F 1 "2_in_and" H 4450 2400 60  0000 C CNN
+F 2 "" H 5200 2500 60  0001 C CNN
+F 3 "" H 5200 2500 60  0001 C CNN
+	1    4450 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L 2_in_and X2
+U 1 1 686E8DC5
+P 4450 3500
+F 0 "X2" H 4500 3500 60  0000 C CNN
+F 1 "2_in_and" H 4450 3250 60  0000 C CNN
+F 2 "" H 5200 3350 60  0001 C CNN
+F 3 "" H 5200 3350 60  0001 C CNN
+	1    4450 3500
+	1    0    0    -1  
+$EndComp
+$Comp
+L NOR_2 X3
+U 1 1 686E8DDE
+P 5750 3050
+F 0 "X3" H 5800 3050 60  0000 C CNN
+F 1 "NOR_2" H 5750 2800 60  0000 C CNN
+F 2 "" H 5650 3050 60  0001 C CNN
+F 3 "" H 5650 3050 60  0001 C CNN
+	1    5750 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L D_FF X4
+U 1 1 686E8E0C
+P 7050 3100
+F 0 "X4" H 7150 3200 60  0000 C CNN
+F 1 "D_FF" H 7050 2900 60  0000 C CNN
+F 2 "" H 7050 3100 60  0001 C CNN
+F 3 "" H 7050 3100 60  0001 C CNN
+	1    7050 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 686E8E39
+P 8550 4100
+F 0 "scmode1" H 8550 4250 98  0000 C CNB
+F 1 "SKY130mode" H 8550 4000 118 0000 C CNB
+F 2 "" H 8550 4250 60  0001 C CNN
+F 3 "" H 8550 4250 60  0001 C CNN
+	1    8550 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686E8E58
+P 3800 2600
+F 0 "U1" H 3850 2700 30  0000 C CNN
+F 1 "PORT" H 3800 2600 30  0000 C CNN
+F 2 "" H 3800 2600 60  0000 C CNN
+F 3 "" H 3800 2600 60  0000 C CNN
+	1    3800 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686E8F0F
+P 3800 2700
+F 0 "U1" H 3850 2800 30  0000 C CNN
+F 1 "PORT" H 3800 2700 30  0000 C CNN
+F 2 "" H 3800 2700 60  0000 C CNN
+F 3 "" H 3800 2700 60  0000 C CNN
+	2    3800 2700
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686E8F53
+P 3800 3450
+F 0 "U1" H 3850 3550 30  0000 C CNN
+F 1 "PORT" H 3800 3450 30  0000 C CNN
+F 2 "" H 3800 3450 60  0000 C CNN
+F 3 "" H 3800 3450 60  0000 C CNN
+	3    3800 3450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686E8F80
+P 3800 3550
+F 0 "U1" H 3850 3650 30  0000 C CNN
+F 1 "PORT" H 3800 3550 30  0000 C CNN
+F 2 "" H 3800 3550 60  0000 C CNN
+F 3 "" H 3800 3550 60  0000 C CNN
+	4    3800 3550
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686E901D
+P 5200 4200
+F 0 "U1" H 5250 4300 30  0000 C CNN
+F 1 "PORT" H 5200 4200 30  0000 C CNN
+F 2 "" H 5200 4200 60  0000 C CNN
+F 3 "" H 5200 4200 60  0000 C CNN
+	5    5200 4200
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 8 1 686E9099
+P 7700 3150
+F 0 "U1" H 7750 3250 30  0000 C CNN
+F 1 "PORT" H 7700 3150 30  0000 C CNN
+F 2 "" H 7700 3150 60  0000 C CNN
+F 3 "" H 7700 3150 60  0000 C CNN
+	8    7700 3150
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686E91B5
+P 7300 2400
+F 0 "U1" H 7350 2500 30  0000 C CNN
+F 1 "PORT" H 7300 2400 30  0000 C CNN
+F 2 "" H 7300 2400 60  0000 C CNN
+F 3 "" H 7300 2400 60  0000 C CNN
+	6    7300 2400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686E922A
+P 7300 3550
+F 0 "U1" H 7350 3650 30  0000 C CNN
+F 1 "PORT" H 7300 3550 30  0000 C CNN
+F 2 "" H 7300 3550 60  0000 C CNN
+F 3 "" H 7300 3550 60  0000 C CNN
+	7    7300 3550
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4900 2650 4900 3000
+Wire Wire Line
+	4900 3000 5400 3000
+Wire Wire Line
+	4900 3500 4900 3100
+Wire Wire Line
+	4900 3100 5400 3100
+Wire Wire Line
+	4050 2400 4050 2500
+Wire Wire Line
+	4050 2400 7050 2400
+Wire Wire Line
+	7050 2400 7050 2700
+Connection ~ 7050 2400
+Connection ~ 7050 3550
+Wire Wire Line
+	4050 3650 4050 3800
+Wire Wire Line
+	4050 3800 7050 3800
+Wire Wire Line
+	7050 3800 7050 3450
+Wire Wire Line
+	5350 2900 5350 2400
+Connection ~ 5350 2400
+Wire Wire Line
+	5350 3200 5350 3800
+Connection ~ 5350 3800
+Wire Wire Line
+	4050 3350 4050 3200
+Wire Wire Line
+	4050 3200 5150 3200
+Wire Wire Line
+	5150 3200 5150 2400
+Connection ~ 5150 2400
+Wire Wire Line
+	4050 2800 4050 2950
+Wire Wire Line
+	4050 2950 5200 2950
+Wire Wire Line
+	5200 2950 5200 3800
+Connection ~ 5200 3800
+Wire Wire Line
+	6200 3050 6650 3050
+$Comp
+L CMOS_Buf X5
+U 1 1 686F5D94
+P 5900 4200
+F 0 "X5" H 5900 4200 60  0000 C CNN
+F 1 "CMOS_Buf" H 5900 4000 60  0000 C CNN
+F 2 "" H 5900 4200 60  0001 C CNN
+F 3 "" H 5900 4200 60  0001 C CNN
+	1    5900 4200
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X6
+U 1 1 686F5DD5
+P 6750 4200
+F 0 "X6" H 6750 4200 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6800 4000 60  0000 C CNN
+F 2 "" H 6750 4200 60  0001 C CNN
+F 3 "" H 6750 4200 60  0001 C CNN
+	1    6750 4200
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	7300 4200 7300 3850
+Wire Wire Line
+	7300 3850 6650 3850
+Wire Wire Line
+	6650 3850 6650 3150
+Wire Wire Line
+	5450 4100 5450 4000
+Wire Wire Line
+	5450 4000 6350 4000
+Wire Wire Line
+	6350 2400 6350 4100
+Connection ~ 6350 2400
+Connection ~ 6350 4000
+Wire Wire Line
+	6350 4300 6350 4400
+Wire Wire Line
+	5450 4400 7550 4400
+Wire Wire Line
+	7550 4400 7550 3750
+Wire Wire Line
+	7550 3750 7050 3750
+Wire Wire Line
+	7050 3750 7050 3550
+Wire Wire Line
+	5450 4300 5450 4400
+Connection ~ 6350 4400
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/DS_blk.sub b/library/SubcircuitLibrary/SN54L98/DS_blk.sub
new file mode 100644
index 000000000..6fe4576b5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/DS_blk.sub
@@ -0,0 +1,25 @@
+* Subcircuit DS_blk
+.subckt DS_blk net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/ds_blk/ds_blk.cir
+.include D_FF.sub
+.include 2_in_and.sub
+.include CMOS_INVTR.sub
+.include NOR_2.sub
+.include CMOS_Buf.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+x1 net-_u1-pad6_ net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad7_ net-_x1-pad5_ 2_in_and
+x2 net-_u1-pad6_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad7_ net-_x2-pad5_ 2_in_and
+x3 net-_x1-pad5_ net-_u1-pad7_ net-_u1-pad6_ net-_x2-pad5_ net-_x3-pad5_ NOR_2
+x4 net-_x3-pad5_ net-_x4-pad2_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ D_FF
+* s c m o d e
+x5 net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad5_ net-_x5-pad4_ CMOS_Buf
+x6 net-_x5-pad4_ net-_u1-pad6_ net-_u1-pad7_ net-_x4-pad2_ CMOS_INVTR
+* Control Statements
+
+.ends DS_blk
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/DS_blk_Previous_Values.xml b/library/SubcircuitLibrary/SN54L98/DS_blk_Previous_Values.xml
new file mode 100644
index 000000000..d06329f5a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/DS_blk_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/2_in_and</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/2_in_and</field></x2><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NOR_2</field></x3><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_FF</field></x4><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_Buf</field></x5><x6><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x6></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/D_FF-cache.lib b/library/SubcircuitLibrary/SN54L98/D_FF-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/D_FF-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L98/D_FF.bak b/library/SubcircuitLibrary/SN54L98/D_FF.bak
new file mode 100644
index 000000000..61b02ff48
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/D_FF.bak
@@ -0,0 +1,246 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode?
+U 1 1 685A3E76
+P 9400 3200
+F 0 "scmode?" H 9400 3350 98  0000 C CNB
+F 1 "SKY130mode" H 9400 3100 118 0000 C CNB
+F 2 "" H 9400 3350 60  0001 C CNN
+F 3 "" H 9400 3350 60  0001 C CNN
+	1    9400 3200
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC?
+U 1 1 685A3EBD
+P 4000 3300
+F 0 "SC?" H 4050 3600 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4300 3387 50  0000 R CNN
+F 2 "" H 4000 1800 50  0001 C CNN
+F 3 "" H 4000 3300 50  0001 C CNN
+	1    4000 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC?
+U 1 1 685A3EFC
+P 4000 4100
+F 0 "SC?" H 4050 4400 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4187 50  0000 R CNN
+F 2 "" H 4000 2600 50  0001 C CNN
+F 3 "" H 4000 4100 50  0001 C CNN
+	1    4000 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC?
+U 1 1 685A3F47
+P 4000 4900
+F 0 "SC?" H 4050 5200 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4987 50  0000 R CNN
+F 2 "" H 4000 3400 50  0001 C CNN
+F 3 "" H 4000 4900 50  0001 C CNN
+	1    4000 4900
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC?
+U 1 1 685A3F7A
+P 4950 3700
+F 0 "SC?" H 5000 4000 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5250 3787 50  0000 R CNN
+F 2 "" H 4950 2200 50  0001 C CNN
+F 3 "" H 4950 3700 50  0001 C CNN
+	1    4950 3700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC?
+U 1 1 685A3FCF
+P 4950 4500
+F 0 "SC?" H 5000 4800 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5250 4587 50  0000 R CNN
+F 2 "" H 4950 3000 50  0001 C CNN
+F 3 "" H 4950 4500 50  0001 C CNN
+	1    4950 4500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 1 1 685A401A
+P 3250 3550
+F 0 "U?" H 3300 3650 30  0000 C CNN
+F 1 "PORT" H 3250 3550 30  0000 C CNN
+F 2 "" H 3250 3550 60  0000 C CNN
+F 3 "" H 3250 3550 60  0000 C CNN
+	1    3250 3550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 2 1 685A40FF
+P 3250 4100
+F 0 "U?" H 3300 4200 30  0000 C CNN
+F 1 "PORT" H 3250 4100 30  0000 C CNN
+F 2 "" H 3250 4100 60  0000 C CNN
+F 3 "" H 3250 4100 60  0000 C CNN
+	2    3250 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 3 1 685A4132
+P 3950 2750
+F 0 "U?" H 4000 2850 30  0000 C CNN
+F 1 "PORT" H 3950 2750 30  0000 C CNN
+F 2 "" H 3950 2750 60  0000 C CNN
+F 3 "" H 3950 2750 60  0000 C CNN
+	3    3950 2750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 4 1 685A41B1
+P 3950 5350
+F 0 "U?" H 4000 5450 30  0000 C CNN
+F 1 "PORT" H 3950 5350 30  0000 C CNN
+F 2 "" H 3950 5350 60  0000 C CNN
+F 3 "" H 3950 5350 60  0000 C CNN
+	4    3950 5350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 5 1 685A4206
+P 5700 4100
+F 0 "U?" H 5750 4200 30  0000 C CNN
+F 1 "PORT" H 5700 4100 30  0000 C CNN
+F 2 "" H 5700 4100 60  0000 C CNN
+F 3 "" H 5700 4100 60  0000 C CNN
+	5    5700 4100
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	4200 3600 4200 3800
+Wire Wire Line
+	3700 3300 3600 3300
+Wire Wire Line
+	3600 3300 3600 4900
+Wire Wire Line
+	3600 4900 3700 4900
+Wire Wire Line
+	3500 3550 3600 3550
+Connection ~ 3600 3550
+Wire Wire Line
+	3500 4100 3700 4100
+Wire Wire Line
+	4200 2750 4200 3000
+Wire Wire Line
+	4650 3700 4200 3700
+Connection ~ 4200 3700
+Wire Wire Line
+	4200 4400 4200 4600
+Wire Wire Line
+	4650 4500 4200 4500
+Connection ~ 4200 4500
+Wire Wire Line
+	5150 4000 5150 4200
+Wire Wire Line
+	5450 4100 5150 4100
+Connection ~ 5150 4100
+Wire Wire Line
+	4200 5200 4200 5350
+Wire Wire Line
+	4100 4900 4250 4900
+Wire Wire Line
+	4250 4900 4250 5250
+Wire Wire Line
+	4200 5250 5150 5250
+Connection ~ 4200 5250
+Wire Wire Line
+	5150 5250 5150 4800
+Connection ~ 4250 5250
+Wire Wire Line
+	5050 4500 5200 4500
+Wire Wire Line
+	5200 4500 5200 4850
+Wire Wire Line
+	5200 4850 5150 4850
+Connection ~ 5150 4850
+Wire Wire Line
+	4100 4100 4250 4100
+Wire Wire Line
+	4250 4100 4250 4500
+Connection ~ 4250 4500
+Wire Wire Line
+	4100 3300 4250 3300
+Wire Wire Line
+	4250 3300 4250 2950
+Wire Wire Line
+	4200 2950 5150 2950
+Connection ~ 4200 2950
+Wire Wire Line
+	5150 2950 5150 3400
+Connection ~ 4250 2950
+Wire Wire Line
+	5050 3700 5200 3700
+Wire Wire Line
+	5200 3700 5200 3350
+Wire Wire Line
+	5200 3350 5150 3350
+Connection ~ 5150 3350
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/D_FF.cir b/library/SubcircuitLibrary/SN54L98/D_FF.cir
new file mode 100644
index 000000000..7d45c3cd5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/D_FF.cir
@@ -0,0 +1,17 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_FF/D_FF.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sun Jul  6 10:25:49 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+scmode1  SKY130mode		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC2-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+SC3  Net-_SC2-Pad3_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC4-Pad1_ Net-_SC1-Pad1_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC5  Net-_SC4-Pad1_ Net-_SC2-Pad3_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC2-Pad2_ Net-_SC1-Pad3_ Net-_SC3-Pad3_ Net-_SC4-Pad1_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/D_FF.cir.out b/library/SubcircuitLibrary/SN54L98/D_FF.cir.out
new file mode 100644
index 000000000..9d076c7f0
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/D_FF.cir.out
@@ -0,0 +1,25 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/d_ff/d_ff.cir
+
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+* s c m o d e
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc3 net-_sc2-pad3_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc4-pad1_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc4-pad1_ net-_sc2-pad3_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc3-pad3_ net-_sc4-pad1_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/D_FF.pro b/library/SubcircuitLibrary/SN54L98/D_FF.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/D_FF.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L98/D_FF.sch b/library/SubcircuitLibrary/SN54L98/D_FF.sch
new file mode 100644
index 000000000..722069493
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/D_FF.sch
@@ -0,0 +1,246 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode1
+U 1 1 685A3E76
+P 9400 3200
+F 0 "scmode1" H 9400 3350 98  0000 C CNB
+F 1 "SKY130mode" H 9400 3100 118 0000 C CNB
+F 2 "" H 9400 3350 60  0001 C CNN
+F 3 "" H 9400 3350 60  0001 C CNN
+	1    9400 3200
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 685A3EBD
+P 4000 3300
+F 0 "SC1" H 4050 3600 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4300 3387 50  0000 R CNN
+F 2 "" H 4000 1800 50  0001 C CNN
+F 3 "" H 4000 3300 50  0001 C CNN
+	1    4000 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 685A3EFC
+P 4000 4100
+F 0 "SC2" H 4050 4400 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4187 50  0000 R CNN
+F 2 "" H 4000 2600 50  0001 C CNN
+F 3 "" H 4000 4100 50  0001 C CNN
+	1    4000 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 685A3F47
+P 4000 4900
+F 0 "SC3" H 4050 5200 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4987 50  0000 R CNN
+F 2 "" H 4000 3400 50  0001 C CNN
+F 3 "" H 4000 4900 50  0001 C CNN
+	1    4000 4900
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 685A3F7A
+P 4950 3700
+F 0 "SC4" H 5000 4000 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5250 3787 50  0000 R CNN
+F 2 "" H 4950 2200 50  0001 C CNN
+F 3 "" H 4950 3700 50  0001 C CNN
+	1    4950 3700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC5
+U 1 1 685A3FCF
+P 4950 4500
+F 0 "SC5" H 5000 4800 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5250 4587 50  0000 R CNN
+F 2 "" H 4950 3000 50  0001 C CNN
+F 3 "" H 4950 4500 50  0001 C CNN
+	1    4950 4500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 685A401A
+P 3250 3550
+F 0 "U1" H 3300 3650 30  0000 C CNN
+F 1 "PORT" H 3250 3550 30  0000 C CNN
+F 2 "" H 3250 3550 60  0000 C CNN
+F 3 "" H 3250 3550 60  0000 C CNN
+	1    3250 3550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685A40FF
+P 3250 4100
+F 0 "U1" H 3300 4200 30  0000 C CNN
+F 1 "PORT" H 3250 4100 30  0000 C CNN
+F 2 "" H 3250 4100 60  0000 C CNN
+F 3 "" H 3250 4100 60  0000 C CNN
+	2    3250 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685A4132
+P 3950 2750
+F 0 "U1" H 4000 2850 30  0000 C CNN
+F 1 "PORT" H 3950 2750 30  0000 C CNN
+F 2 "" H 3950 2750 60  0000 C CNN
+F 3 "" H 3950 2750 60  0000 C CNN
+	3    3950 2750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685A41B1
+P 3950 5350
+F 0 "U1" H 4000 5450 30  0000 C CNN
+F 1 "PORT" H 3950 5350 30  0000 C CNN
+F 2 "" H 3950 5350 60  0000 C CNN
+F 3 "" H 3950 5350 60  0000 C CNN
+	4    3950 5350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685A4206
+P 5700 4100
+F 0 "U1" H 5750 4200 30  0000 C CNN
+F 1 "PORT" H 5700 4100 30  0000 C CNN
+F 2 "" H 5700 4100 60  0000 C CNN
+F 3 "" H 5700 4100 60  0000 C CNN
+	5    5700 4100
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	4200 3600 4200 3800
+Wire Wire Line
+	3700 3300 3600 3300
+Wire Wire Line
+	3600 3300 3600 4900
+Wire Wire Line
+	3600 4900 3700 4900
+Wire Wire Line
+	3500 3550 3600 3550
+Connection ~ 3600 3550
+Wire Wire Line
+	3500 4100 3700 4100
+Wire Wire Line
+	4200 2750 4200 3000
+Wire Wire Line
+	4650 3700 4200 3700
+Connection ~ 4200 3700
+Wire Wire Line
+	4200 4400 4200 4600
+Wire Wire Line
+	4650 4500 4200 4500
+Connection ~ 4200 4500
+Wire Wire Line
+	5150 4000 5150 4200
+Wire Wire Line
+	5450 4100 5150 4100
+Connection ~ 5150 4100
+Wire Wire Line
+	4200 5200 4200 5350
+Wire Wire Line
+	4100 4900 4250 4900
+Wire Wire Line
+	4250 4900 4250 5250
+Wire Wire Line
+	4200 5250 5150 5250
+Connection ~ 4200 5250
+Wire Wire Line
+	5150 5250 5150 4800
+Connection ~ 4250 5250
+Wire Wire Line
+	5050 4500 5200 4500
+Wire Wire Line
+	5200 4500 5200 4850
+Wire Wire Line
+	5200 4850 5150 4850
+Connection ~ 5150 4850
+Wire Wire Line
+	4100 4100 4250 4100
+Wire Wire Line
+	4250 4100 4250 4500
+Connection ~ 4250 4500
+Wire Wire Line
+	4100 3300 4250 3300
+Wire Wire Line
+	4250 3300 4250 2950
+Wire Wire Line
+	4200 2950 5150 2950
+Connection ~ 4200 2950
+Wire Wire Line
+	5150 2950 5150 3400
+Connection ~ 4250 2950
+Wire Wire Line
+	5050 3700 5200 3700
+Wire Wire Line
+	5200 3700 5200 3350
+Wire Wire Line
+	5200 3350 5150 3350
+Connection ~ 5150 3350
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/D_FF.sub b/library/SubcircuitLibrary/SN54L98/D_FF.sub
new file mode 100644
index 000000000..d686ca626
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/D_FF.sub
@@ -0,0 +1,19 @@
+* Subcircuit D_FF
+.subckt D_FF net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc3-pad3_ net-_sc4-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/d_ff/d_ff.cir
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+* s c m o d e
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc3 net-_sc2-pad3_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc4-pad1_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc4-pad1_ net-_sc2-pad3_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* Control Statements
+
+.ends D_FF
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/D_FF_Previous_Values.xml b/library/SubcircuitLibrary/SN54L98/D_FF_Previous_Values.xml
new file mode 100644
index 000000000..87f2534ab
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/D_FF_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2><sc3><field>w=1 l=0.15</field></sc3><sc4><field>w=3 l=0.15</field></sc4><sc5><field>w=1 l=0.15</field></sc5></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/NAND_2-cache.lib b/library/SubcircuitLibrary/SN54L98/NAND_2-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NAND_2-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L98/NAND_2.bak b/library/SubcircuitLibrary/SN54L98/NAND_2.bak
new file mode 100644
index 000000000..ad9819396
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NAND_2.bak
@@ -0,0 +1,221 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
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+U 1 1 684AF0E9
+P 4750 2050
+F 0 "SC2" H 4800 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5050 2137 50  0000 R CNN
+F 2 "" H 4750 550 50  0001 C CNN
+F 3 "" H 4750 2050 50  0001 C CNN
+	1    4750 2050
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684AF14C
+P 5150 2750
+F 0 "SC3" H 5200 3050 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5450 2837 50  0000 R CNN
+F 2 "" H 5150 1250 50  0001 C CNN
+F 3 "" H 5150 2750 50  0001 C CNN
+	1    5150 2750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF1CF
+P 4200 3600
+F 0 "SC1" H 4250 3900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4500 3687 50  0000 R CNN
+F 2 "" H 4200 2100 50  0001 C CNN
+F 3 "" H 4200 3600 50  0001 C CNN
+	1    4200 3600
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 684AF20C
+P 5550 3600
+F 0 "SC4" H 5600 3900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5850 3687 50  0000 R CNN
+F 2 "" H 5550 2100 50  0001 C CNN
+F 3 "" H 5550 3600 50  0001 C CNN
+	1    5550 3600
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF271
+P 4650 1550
+F 0 "U1" H 4700 1650 30  0000 C CNN
+F 1 "PORT" H 4650 1550 30  0000 C CNN
+F 2 "" H 4650 1550 60  0000 C CNN
+F 3 "" H 4650 1550 60  0000 C CNN
+	3    4650 1550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF336
+P 3550 2650
+F 0 "U1" H 3600 2750 30  0000 C CNN
+F 1 "PORT" H 3550 2650 30  0000 C CNN
+F 2 "" H 3550 2650 60  0000 C CNN
+F 3 "" H 3550 2650 60  0000 C CNN
+	1    3550 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AF413
+P 6200 2750
+F 0 "U1" H 6250 2850 30  0000 C CNN
+F 1 "PORT" H 6200 2750 30  0000 C CNN
+F 2 "" H 6200 2750 60  0000 C CNN
+F 3 "" H 6200 2750 60  0000 C CNN
+	4    6200 2750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF82C
+P 6200 3150
+F 0 "U1" H 6250 3250 30  0000 C CNN
+F 1 "PORT" H 6200 3150 30  0000 C CNN
+F 2 "" H 6200 3150 60  0000 C CNN
+F 3 "" H 6200 3150 60  0000 C CNN
+	5    6200 3150
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF895
+P 4550 4050
+F 0 "U1" H 4600 4150 30  0000 C CNN
+F 1 "PORT" H 4550 4050 30  0000 C CNN
+F 2 "" H 4550 4050 60  0000 C CNN
+F 3 "" H 4550 4050 60  0000 C CNN
+	2    4550 4050
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4400 3900 5350 3900
+Wire Wire Line
+	4800 4050 4800 3900
+Connection ~ 4800 3900
+Wire Wire Line
+	4300 3600 4450 3600
+Wire Wire Line
+	4450 3600 4450 3900
+Connection ~ 4450 3900
+Wire Wire Line
+	5450 3600 5300 3600
+Wire Wire Line
+	5300 3600 5300 3900
+Connection ~ 5300 3900
+Wire Wire Line
+	4400 3300 5350 3300
+Wire Wire Line
+	4950 3050 4950 3300
+Connection ~ 4950 3300
+Wire Wire Line
+	5950 3150 4950 3150
+Connection ~ 4950 3150
+Wire Wire Line
+	5450 2750 5950 2750
+Wire Wire Line
+	5850 2750 5850 3600
+Wire Wire Line
+	5050 2750 4900 2750
+Wire Wire Line
+	4900 2750 4900 2400
+Wire Wire Line
+	4900 2400 4950 2400
+Wire Wire Line
+	4950 2350 4950 2450
+Connection ~ 4950 2400
+Wire Wire Line
+	4450 2050 3900 2050
+Wire Wire Line
+	3900 2050 3900 3600
+Wire Wire Line
+	3800 2650 3900 2650
+Connection ~ 3900 2650
+Connection ~ 5850 2750
+Wire Wire Line
+	4850 2050 5000 2050
+Wire Wire Line
+	5000 2050 5000 1650
+Wire Wire Line
+	5000 1650 4950 1650
+Wire Wire Line
+	4950 1550 4950 1750
+Wire Wire Line
+	4900 1550 4950 1550
+Connection ~ 4950 1650
+$Comp
+L SKY130mode scmode1
+U 1 1 684AFD6B
+P 7350 2150
+F 0 "scmode1" H 7350 2300 98  0000 C CNB
+F 1 "SKY130mode" H 7350 2050 118 0000 C CNB
+F 2 "" H 7350 2300 60  0001 C CNN
+F 3 "" H 7350 2300 60  0001 C CNN
+	1    7350 2150
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/NAND_2.cir b/library/SubcircuitLibrary/SN54L98/NAND_2.cir
new file mode 100644
index 000000000..f3da72301
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NAND_2.cir
@@ -0,0 +1,16 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2/NAND_2.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sun Jul  6 17:51:58 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__pfet_01v8		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC1-Pad3_ Net-_SC3-Pad2_ Net-_SC4-Pad3_ Net-_SC4-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC4-Pad3_ Net-_SC2-Pad3_ Net-_SC1-Pad1_ Net-_SC3-Pad2_ PORT		
+scmode1  SKY130mode		
+SC3  Net-_SC1-Pad1_ Net-_SC3-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__pfet_01v8		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/NAND_2.cir.out b/library/SubcircuitLibrary/SN54L98/NAND_2.cir.out
new file mode 100644
index 000000000..15401b956
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NAND_2.cir.out
@@ -0,0 +1,18 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_2/nand_2.cir
+
+
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad3_ net-_sc3-pad2_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc4-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ net-_sc3-pad2_ port
+* s c m o d e
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/NAND_2.pro b/library/SubcircuitLibrary/SN54L98/NAND_2.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NAND_2.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L98/NAND_2.sch b/library/SubcircuitLibrary/SN54L98/NAND_2.sch
new file mode 100644
index 000000000..ebef1d4c6
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NAND_2.sch
@@ -0,0 +1,222 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:NAND_2-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 684AF0E9
+P 4200 2050
+F 0 "SC2" H 4250 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4500 2137 50  0000 R CNN
+F 2 "" H 4200 550 50  0001 C CNN
+F 3 "" H 4200 2050 50  0001 C CNN
+	1    4200 2050
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF1CF
+P 4450 2850
+F 0 "SC1" H 4500 3150 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4750 2937 50  0000 R CNN
+F 2 "" H 4450 1350 50  0001 C CNN
+F 3 "" H 4450 2850 50  0001 C CNN
+	1    4450 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 684AF20C
+P 4850 3550
+F 0 "SC4" H 4900 3850 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5150 3637 50  0000 R CNN
+F 2 "" H 4850 2050 50  0001 C CNN
+F 3 "" H 4850 3550 50  0001 C CNN
+	1    4850 3550
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF271
+P 4350 1550
+F 0 "U1" H 4400 1650 30  0000 C CNN
+F 1 "PORT" H 4350 1550 30  0000 C CNN
+F 2 "" H 4350 1550 60  0000 C CNN
+F 3 "" H 4350 1550 60  0000 C CNN
+	3    4350 1550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF336
+P 3550 2650
+F 0 "U1" H 3600 2750 30  0000 C CNN
+F 1 "PORT" H 3550 2650 30  0000 C CNN
+F 2 "" H 3550 2650 60  0000 C CNN
+F 3 "" H 3550 2650 60  0000 C CNN
+	1    3550 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AF413
+P 5750 2450
+F 0 "U1" H 5800 2550 30  0000 C CNN
+F 1 "PORT" H 5750 2450 30  0000 C CNN
+F 2 "" H 5750 2450 60  0000 C CNN
+F 3 "" H 5750 2450 60  0000 C CNN
+	4    5750 2450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF82C
+P 5750 3300
+F 0 "U1" H 5800 3400 30  0000 C CNN
+F 1 "PORT" H 5750 3300 30  0000 C CNN
+F 2 "" H 5750 3300 60  0000 C CNN
+F 3 "" H 5750 3300 60  0000 C CNN
+	5    5750 3300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF895
+P 4400 4000
+F 0 "U1" H 4450 4100 30  0000 C CNN
+F 1 "PORT" H 4400 4000 30  0000 C CNN
+F 2 "" H 4400 4000 60  0000 C CNN
+F 3 "" H 4400 4000 60  0000 C CNN
+	2    4400 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684AFD6B
+P 7350 2150
+F 0 "scmode1" H 7350 2300 98  0000 C CNB
+F 1 "SKY130mode" H 7350 2050 118 0000 C CNB
+F 2 "" H 7350 2300 60  0001 C CNN
+F 3 "" H 7350 2300 60  0001 C CNN
+	1    7350 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684CF41D
+P 5000 2050
+F 0 "SC3" H 5050 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5300 2137 50  0000 R CNN
+F 2 "" H 5000 550 50  0001 C CNN
+F 3 "" H 5000 2050 50  0001 C CNN
+	1    5000 2050
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4400 1750 4800 1750
+Wire Wire Line
+	4600 1550 4600 1750
+Connection ~ 4600 1750
+Wire Wire Line
+	4300 2050 4450 2050
+Wire Wire Line
+	4450 2050 4450 1750
+Connection ~ 4450 1750
+Wire Wire Line
+	4900 2050 4750 2050
+Wire Wire Line
+	4750 2050 4750 1750
+Connection ~ 4750 1750
+Wire Wire Line
+	4400 2350 4800 2350
+Wire Wire Line
+	4650 2550 4650 2350
+Connection ~ 4650 2350
+Wire Wire Line
+	5500 2450 4650 2450
+Connection ~ 4650 2450
+Wire Wire Line
+	3900 2050 3900 2850
+Wire Wire Line
+	3900 2850 4150 2850
+Wire Wire Line
+	3800 2650 3900 2650
+Connection ~ 3900 2650
+Wire Wire Line
+	5300 2050 5300 3550
+Wire Wire Line
+	5300 3550 5150 3550
+Wire Wire Line
+	5500 3300 5300 3300
+Connection ~ 5300 3300
+Wire Wire Line
+	4550 2850 4700 2850
+Wire Wire Line
+	4700 2850 4700 3200
+Wire Wire Line
+	4700 3200 4650 3200
+Wire Wire Line
+	4650 3150 4650 3250
+Connection ~ 4650 3200
+Wire Wire Line
+	4650 3850 4650 4000
+Wire Wire Line
+	4750 3550 4600 3550
+Wire Wire Line
+	4600 3550 4600 3900
+Wire Wire Line
+	4600 3900 4650 3900
+Connection ~ 4650 3900
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/NAND_2.sub b/library/SubcircuitLibrary/SN54L98/NAND_2.sub
new file mode 100644
index 000000000..aa6beac0d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NAND_2.sub
@@ -0,0 +1,12 @@
+* Subcircuit NAND_2
+.subckt NAND_2 net-_sc1-pad2_ net-_sc4-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ net-_sc3-pad2_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_2/nand_2.cir
+
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad3_ net-_sc3-pad2_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+* Control Statements
+
+.ends NAND_2
diff --git a/library/SubcircuitLibrary/SN54L98/NAND_2_Previous_Values.xml b/library/SubcircuitLibrary/SN54L98/NAND_2_Previous_Values.xml
new file mode 100644
index 000000000..066d43a60
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NAND_2_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc2><field>w=3 l=0.15</field></sc2><sc1><field>w=1 l=0.15</field></sc1><sc4><field>w=1 l=0.15</field></sc4><sc3><field>w=3 l=0.15</field></sc3></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/NOR_2-cache.lib b/library/SubcircuitLibrary/SN54L98/NOR_2-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NOR_2-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L98/NOR_2.cir b/library/SubcircuitLibrary/SN54L98/NOR_2.cir
new file mode 100644
index 000000000..976cd2f8e
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NOR_2.cir
@@ -0,0 +1,16 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NOR_2/NOR_2.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Mon Jul  7 11:47:22 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC2  Net-_SC2-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__pfet_01v8		
+SC3  Net-_SC1-Pad1_ Net-_SC3-Pad2_ Net-_SC2-Pad1_ Net-_SC2-Pad1_ sky130_fd_pr__pfet_01v8		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC1-Pad1_ Net-_SC3-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC3-Pad2_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/NOR_2.cir.out b/library/SubcircuitLibrary/SN54L98/NOR_2.cir.out
new file mode 100644
index 000000000..5cf58fd73
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NOR_2.cir.out
@@ -0,0 +1,24 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nor_2/nor_2.cir
+
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+xsc2 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad1_ net-_sc2-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc3-pad2_ net-_sc1-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/NOR_2.pro b/library/SubcircuitLibrary/SN54L98/NOR_2.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NOR_2.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L98/NOR_2.sch b/library/SubcircuitLibrary/SN54L98/NOR_2.sch
new file mode 100644
index 000000000..86f7c4bc6
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NOR_2.sch
@@ -0,0 +1,219 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 684CE7B8
+P 4750 2600
+F 0 "SC2" H 4800 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5050 2687 50  0000 R CNN
+F 2 "" H 4750 1100 50  0001 C CNN
+F 3 "" H 4750 2600 50  0001 C CNN
+	1    4750 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684CE82E
+P 5150 3400
+F 0 "SC3" H 5200 3700 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5450 3487 50  0000 R CNN
+F 2 "" H 5150 1900 50  0001 C CNN
+F 3 "" H 5150 3400 50  0001 C CNN
+	1    5150 3400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684CE88F
+P 4050 4450
+F 0 "SC1" H 4100 4750 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4350 4537 50  0000 R CNN
+F 2 "" H 4050 2950 50  0001 C CNN
+F 3 "" H 4050 4450 50  0001 C CNN
+	1    4050 4450
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 684CE8CA
+P 5650 4450
+F 0 "SC4" H 5700 4750 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5950 4537 50  0000 R CNN
+F 2 "" H 5650 2950 50  0001 C CNN
+F 3 "" H 5650 4450 50  0001 C CNN
+	1    5650 4450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684CE919
+P 3100 3450
+F 0 "U1" H 3150 3550 30  0000 C CNN
+F 1 "PORT" H 3100 3450 30  0000 C CNN
+F 2 "" H 3100 3450 60  0000 C CNN
+F 3 "" H 3100 3450 60  0000 C CNN
+	1    3100 3450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684CE990
+P 6350 3400
+F 0 "U1" H 6400 3500 30  0000 C CNN
+F 1 "PORT" H 6350 3400 30  0000 C CNN
+F 2 "" H 6350 3400 60  0000 C CNN
+F 3 "" H 6350 3400 60  0000 C CNN
+	4    6350 3400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684CEA11
+P 6450 3900
+F 0 "U1" H 6500 4000 30  0000 C CNN
+F 1 "PORT" H 6450 3900 30  0000 C CNN
+F 2 "" H 6450 3900 60  0000 C CNN
+F 3 "" H 6450 3900 60  0000 C CNN
+	5    6450 3900
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684CEA84
+P 4700 2150
+F 0 "U1" H 4750 2250 30  0000 C CNN
+F 1 "PORT" H 4700 2150 30  0000 C CNN
+F 2 "" H 4700 2150 60  0000 C CNN
+F 3 "" H 4700 2150 60  0000 C CNN
+	3    4700 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684CEB11
+P 4650 5100
+F 0 "U1" H 4700 5200 30  0000 C CNN
+F 1 "PORT" H 4650 5100 30  0000 C CNN
+F 2 "" H 4650 5100 60  0000 C CNN
+F 3 "" H 4650 5100 60  0000 C CNN
+	2    4650 5100
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684CEB6E
+P 8300 2900
+F 0 "scmode1" H 8300 3050 98  0000 C CNB
+F 1 "SKY130mode" H 8300 2800 118 0000 C CNB
+F 2 "" H 8300 3050 60  0001 C CNN
+F 3 "" H 8300 3050 60  0001 C CNN
+	1    8300 2900
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4250 4150 5450 4150
+Wire Wire Line
+	4950 3700 4950 4150
+Connection ~ 4950 4150
+Wire Wire Line
+	6200 3900 4950 3900
+Connection ~ 4950 3900
+Wire Wire Line
+	4250 4750 5450 4750
+Wire Wire Line
+	5550 4450 5400 4450
+Wire Wire Line
+	5400 4450 5400 4750
+Connection ~ 5400 4750
+Wire Wire Line
+	4150 4450 4300 4450
+Wire Wire Line
+	4300 4450 4300 4750
+Connection ~ 4300 4750
+Wire Wire Line
+	4900 5100 4900 4750
+Connection ~ 4900 4750
+Wire Wire Line
+	5450 3400 6100 3400
+Wire Wire Line
+	5950 3400 5950 4450
+Connection ~ 5950 3400
+Wire Wire Line
+	4450 2600 3750 2600
+Wire Wire Line
+	3750 2600 3750 4450
+Wire Wire Line
+	3350 3450 3750 3450
+Connection ~ 3750 3450
+Wire Wire Line
+	4950 2150 4950 2300
+Wire Wire Line
+	4850 2600 5000 2600
+Wire Wire Line
+	5000 2600 5000 2250
+Wire Wire Line
+	5000 2250 4950 2250
+Connection ~ 4950 2250
+Wire Wire Line
+	4950 2900 4950 3100
+Wire Wire Line
+	5050 3400 4900 3400
+Wire Wire Line
+	4900 3400 4900 3050
+Wire Wire Line
+	4900 3050 4950 3050
+Connection ~ 4950 3050
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/NOR_2.sub b/library/SubcircuitLibrary/SN54L98/NOR_2.sub
new file mode 100644
index 000000000..f5a7ff023
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NOR_2.sub
@@ -0,0 +1,18 @@
+* Subcircuit NOR_2
+.subckt NOR_2 net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc3-pad2_ net-_sc1-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nor_2/nor_2.cir
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+xsc2 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad1_ net-_sc2-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends NOR_2
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/NOR_2_Previous_Values.xml b/library/SubcircuitLibrary/SN54L98/NOR_2_Previous_Values.xml
new file mode 100644
index 000000000..62dc0d0a2
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/NOR_2_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc2><field>w=3 l=0.15</field></sc2><sc3><field>w=3 l=0.15</field></sc3><sc1><field>w=1 l=0.15</field></sc1><sc4><field>w=1 l=0.15</field></sc4></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/SN54L98-cache.lib b/library/SubcircuitLibrary/SN54L98/SN54L98-cache.lib
new file mode 100644
index 000000000..f11104830
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/SN54L98-cache.lib
@@ -0,0 +1,94 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 300 0 50 0 1 0 N
+P 2 0 1 0 -200 150 250 0 N
+P 3 0 1 0 -200 150 -200 -150 250 0 N
+X in 1 -400 0 200 R 50 50 1 1 I
+X Vdd 2 -400 100 200 R 50 50 1 1 I
+X Gnd 3 -400 -100 200 R 50 50 1 1 I
+X Out 4 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# DS_blk
+#
+DEF DS_blk X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "DS_blk" 0 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 200 250 -200 0 1 0 N
+X in1 1 -450 150 200 R 50 50 1 1 I
+X ws1 2 -450 50 200 R 50 50 1 1 I
+X ws2 3 -450 -50 200 R 50 50 1 1 I
+X in2 4 -450 -150 200 R 50 50 1 1 I
+X Clk 5 450 50 200 L 50 50 1 1 I
+X Vdd 6 450 150 200 L 50 50 1 1 I
+X Gnd 7 450 -150 200 L 50 50 1 1 I
+X Out 8 450 -50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L98/SN54L98.bak b/library/SubcircuitLibrary/SN54L98/SN54L98.bak
new file mode 100644
index 000000000..2b0d7c78d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/SN54L98.bak
@@ -0,0 +1,385 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SN54L98-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L DS_blk X2
+U 1 1 686F5D03
+P 5150 2200
+F 0 "X2" H 5150 2200 60  0000 C CNN
+F 1 "DS_blk" H 5150 1950 60  0000 C CNN
+F 2 "" H 5150 2200 60  0001 C CNN
+F 3 "" H 5150 2200 60  0001 C CNN
+	1    5150 2200
+	1    0    0    -1  
+$EndComp
+$Comp
+L DS_blk X3
+U 1 1 686F5D60
+P 5150 3150
+F 0 "X3" H 5150 3150 60  0000 C CNN
+F 1 "DS_blk" H 5150 2900 60  0000 C CNN
+F 2 "" H 5150 3150 60  0001 C CNN
+F 3 "" H 5150 3150 60  0001 C CNN
+	1    5150 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L DS_blk X4
+U 1 1 686F5E27
+P 5150 4100
+F 0 "X4" H 5150 4100 60  0000 C CNN
+F 1 "DS_blk" H 5150 3850 60  0000 C CNN
+F 2 "" H 5150 4100 60  0001 C CNN
+F 3 "" H 5150 4100 60  0001 C CNN
+	1    5150 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L DS_blk X5
+U 1 1 686F5E96
+P 5150 5150
+F 0 "X5" H 5150 5150 60  0000 C CNN
+F 1 "DS_blk" H 5150 4900 60  0000 C CNN
+F 2 "" H 5150 5150 60  0001 C CNN
+F 3 "" H 5150 5150 60  0001 C CNN
+	1    5150 5150
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5600 2150 5650 2150
+Wire Wire Line
+	5650 2150 5650 5550
+Wire Wire Line
+	5650 5550 4400 5550
+Wire Wire Line
+	5600 5300 5700 5300
+Wire Wire Line
+	5700 5300 5700 2350
+Wire Wire Line
+	5700 2350 5600 2350
+Wire Wire Line
+	5600 3300 5700 3300
+Connection ~ 5700 3300
+Wire Wire Line
+	5600 3100 5650 3100
+Connection ~ 5650 3100
+Wire Wire Line
+	5600 4250 5700 4250
+Connection ~ 5700 4250
+Wire Wire Line
+	5600 4050 5650 4050
+Connection ~ 5650 4050
+Wire Wire Line
+	5600 5100 5650 5100
+Connection ~ 5650 5100
+Wire Wire Line
+	5750 5000 5600 5000
+Wire Wire Line
+	5750 1950 5750 5000
+Wire Wire Line
+	5750 2050 5600 2050
+Wire Wire Line
+	5600 3000 5750 3000
+Connection ~ 5750 3000
+Wire Wire Line
+	5600 3950 5750 3950
+Connection ~ 5750 3950
+Wire Wire Line
+	4700 2150 4550 2150
+Wire Wire Line
+	4550 2150 4550 5100
+Wire Wire Line
+	4550 5100 4700 5100
+Wire Wire Line
+	4600 5200 4700 5200
+Wire Wire Line
+	4600 2250 4600 5200
+Wire Wire Line
+	4600 4150 4700 4150
+Wire Wire Line
+	4700 4050 4550 4050
+Connection ~ 4550 4050
+Wire Wire Line
+	4600 3200 4700 3200
+Connection ~ 4600 4150
+Wire Wire Line
+	4700 3100 4550 3100
+Connection ~ 4550 3100
+Wire Wire Line
+	4050 2250 4700 2250
+Connection ~ 4600 3200
+$Comp
+L CMOS_INVTR X1
+U 1 1 686F65EF
+P 4000 2150
+F 0 "X1" H 4000 2150 60  0000 C CNN
+F 1 "CMOS_INVTR" H 4050 1950 60  0000 C CNN
+F 2 "" H 4000 2150 60  0001 C CNN
+F 3 "" H 4000 2150 60  0001 C CNN
+	1    4000 2150
+	1    0    0    -1  
+$EndComp
+Connection ~ 4550 2150
+Connection ~ 4600 2250
+Wire Wire Line
+	4050 2250 4050 2450
+Wire Wire Line
+	4050 2450 3450 2450
+Wire Wire Line
+	3450 2450 3450 2150
+Wire Wire Line
+	3400 2150 3600 2150
+Wire Wire Line
+	3600 2050 3600 1950
+Wire Wire Line
+	3500 1950 5750 1950
+Connection ~ 5750 2050
+Wire Wire Line
+	3600 2250 3600 2500
+Wire Wire Line
+	3500 2500 5700 2500
+Connection ~ 5700 2500
+$Comp
+L PORT U1
+U 2 1 686F670F
+P 3250 1950
+F 0 "U1" H 3300 2050 30  0000 C CNN
+F 1 "PORT" H 3250 1950 30  0000 C CNN
+F 2 "" H 3250 1950 60  0000 C CNN
+F 3 "" H 3250 1950 60  0000 C CNN
+	2    3250 1950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686F6756
+P 3150 2150
+F 0 "U1" H 3200 2250 30  0000 C CNN
+F 1 "PORT" H 3150 2150 30  0000 C CNN
+F 2 "" H 3150 2150 60  0000 C CNN
+F 3 "" H 3150 2150 60  0000 C CNN
+	1    3150 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686F6781
+P 3250 2500
+F 0 "U1" H 3300 2600 30  0000 C CNN
+F 1 "PORT" H 3250 2500 30  0000 C CNN
+F 2 "" H 3250 2500 60  0000 C CNN
+F 3 "" H 3250 2500 60  0000 C CNN
+	3    3250 2500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686F67D4
+P 4450 2050
+F 0 "U1" H 4500 2150 30  0000 C CNN
+F 1 "PORT" H 4450 2050 30  0000 C CNN
+F 2 "" H 4450 2050 60  0000 C CNN
+F 3 "" H 4450 2050 60  0000 C CNN
+	5    4450 2050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686F6822
+P 4450 2350
+F 0 "U1" H 4500 2450 30  0000 C CNN
+F 1 "PORT" H 4450 2350 30  0000 C CNN
+F 2 "" H 4450 2350 60  0000 C CNN
+F 3 "" H 4450 2350 60  0000 C CNN
+	6    4450 2350
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686F699A
+P 4450 3000
+F 0 "U1" H 4500 3100 30  0000 C CNN
+F 1 "PORT" H 4450 3000 30  0000 C CNN
+F 2 "" H 4450 3000 60  0000 C CNN
+F 3 "" H 4450 3000 60  0000 C CNN
+	7    4450 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 8 1 686F6A01
+P 4450 3300
+F 0 "U1" H 4500 3400 30  0000 C CNN
+F 1 "PORT" H 4450 3300 30  0000 C CNN
+F 2 "" H 4450 3300 60  0000 C CNN
+F 3 "" H 4450 3300 60  0000 C CNN
+	8    4450 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 686F6ACC
+P 4450 3950
+F 0 "U1" H 4500 4050 30  0000 C CNN
+F 1 "PORT" H 4450 3950 30  0000 C CNN
+F 2 "" H 4450 3950 60  0000 C CNN
+F 3 "" H 4450 3950 60  0000 C CNN
+	9    4450 3950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 686F6BE4
+P 4450 4250
+F 0 "U1" H 4500 4350 30  0000 C CNN
+F 1 "PORT" H 4450 4250 30  0000 C CNN
+F 2 "" H 4450 4250 60  0000 C CNN
+F 3 "" H 4450 4250 60  0000 C CNN
+	10   4450 4250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 11 1 686F6C5B
+P 4450 5000
+F 0 "U1" H 4500 5100 30  0000 C CNN
+F 1 "PORT" H 4450 5000 30  0000 C CNN
+F 2 "" H 4450 5000 60  0000 C CNN
+F 3 "" H 4450 5000 60  0000 C CNN
+	11   4450 5000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 12 1 686F6CBC
+P 4450 5300
+F 0 "U1" H 4500 5400 30  0000 C CNN
+F 1 "PORT" H 4450 5300 30  0000 C CNN
+F 2 "" H 4450 5300 60  0000 C CNN
+F 3 "" H 4450 5300 60  0000 C CNN
+	12   4450 5300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686F6D53
+P 4150 5550
+F 0 "U1" H 4200 5650 30  0000 C CNN
+F 1 "PORT" H 4150 5550 30  0000 C CNN
+F 2 "" H 4150 5550 60  0000 C CNN
+F 3 "" H 4150 5550 60  0000 C CNN
+	4    4150 5550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 13 1 686F70B5
+P 5850 2250
+F 0 "U1" H 5900 2350 30  0000 C CNN
+F 1 "PORT" H 5850 2250 30  0000 C CNN
+F 2 "" H 5850 2250 60  0000 C CNN
+F 3 "" H 5850 2250 60  0000 C CNN
+	13   5850 2250
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 14 1 686F7112
+P 5850 3200
+F 0 "U1" H 5900 3300 30  0000 C CNN
+F 1 "PORT" H 5850 3200 30  0000 C CNN
+F 2 "" H 5850 3200 60  0000 C CNN
+F 3 "" H 5850 3200 60  0000 C CNN
+	14   5850 3200
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 15 1 686F71D8
+P 5850 4150
+F 0 "U1" H 5900 4250 30  0000 C CNN
+F 1 "PORT" H 5850 4150 30  0000 C CNN
+F 2 "" H 5850 4150 60  0000 C CNN
+F 3 "" H 5850 4150 60  0000 C CNN
+	15   5850 4150
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 16 1 686F729F
+P 5850 5200
+F 0 "U1" H 5900 5300 30  0000 C CNN
+F 1 "PORT" H 5850 5200 30  0000 C CNN
+F 2 "" H 5850 5200 60  0000 C CNN
+F 3 "" H 5850 5200 60  0000 C CNN
+	16   5850 5200
+	-1   0    0    -1  
+$EndComp
+Connection ~ 3600 1950
+Connection ~ 3450 2150
+Connection ~ 3600 2500
+$Comp
+L SKY130mode scmode1
+U 1 1 686F754B
+P 9550 3300
+F 0 "scmode1" H 9550 3450 98  0000 C CNB
+F 1 "SKY130mode" H 9550 3200 118 0000 C CNB
+F 2 "" H 9550 3450 60  0001 C CNN
+F 3 "" H 9550 3450 60  0001 C CNN
+	1    9550 3300
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/SN54L98.cir b/library/SubcircuitLibrary/SN54L98/SN54L98.cir
new file mode 100644
index 000000000..4a370636a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/SN54L98.cir
@@ -0,0 +1,17 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SN54L98/SN54L98.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Thu Jul 10 12:28:04 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X2  Net-_U1-Pad5_ Net-_X1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad6_ Net-_U1-Pad4_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad13_ DS_blk		
+X3  Net-_U1-Pad7_ Net-_X1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad8_ Net-_U1-Pad4_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad14_ DS_blk		
+X4  Net-_U1-Pad9_ Net-_X1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad10_ Net-_U1-Pad4_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad15_ DS_blk		
+X5  Net-_U1-Pad11_ Net-_X1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad12_ Net-_U1-Pad4_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad16_ DS_blk		
+X1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_X1-Pad4_ CMOS_INVTR		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad9_ Net-_U1-Pad10_ Net-_U1-Pad11_ Net-_U1-Pad12_ Net-_U1-Pad13_ Net-_U1-Pad14_ Net-_U1-Pad15_ Net-_U1-Pad16_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/SN54L98.cir.out b/library/SubcircuitLibrary/SN54L98/SN54L98.cir.out
new file mode 100644
index 000000000..31efdb46d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/SN54L98.cir.out
@@ -0,0 +1,27 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/sn54l98/sn54l98.cir
+
+.include CMOS_INVTR.sub
+.include DS_blk.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+x2 net-_u1-pad5_ net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad6_ net-_u1-pad4_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad13_ DS_blk
+x3 net-_u1-pad7_ net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad8_ net-_u1-pad4_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad14_ DS_blk
+x4 net-_u1-pad9_ net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad10_ net-_u1-pad4_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad15_ DS_blk
+x5 net-_u1-pad11_ net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad12_ net-_u1-pad4_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad16_ DS_blk
+x1 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_x1-pad4_ CMOS_INVTR
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L98/SN54L98.pro b/library/SubcircuitLibrary/SN54L98/SN54L98.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/SN54L98.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L98/SN54L98.sch b/library/SubcircuitLibrary/SN54L98/SN54L98.sch
new file mode 100644
index 000000000..60bde8a82
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/SN54L98.sch
@@ -0,0 +1,385 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SN54L98-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L DS_blk X2
+U 1 1 686F5D03
+P 5150 2200
+F 0 "X2" H 5150 2200 60  0000 C CNN
+F 1 "DS_blk" H 5150 1950 60  0000 C CNN
+F 2 "" H 5150 2200 60  0001 C CNN
+F 3 "" H 5150 2200 60  0001 C CNN
+	1    5150 2200
+	1    0    0    -1  
+$EndComp
+$Comp
+L DS_blk X3
+U 1 1 686F5D60
+P 5150 3150
+F 0 "X3" H 5150 3150 60  0000 C CNN
+F 1 "DS_blk" H 5150 2900 60  0000 C CNN
+F 2 "" H 5150 3150 60  0001 C CNN
+F 3 "" H 5150 3150 60  0001 C CNN
+	1    5150 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L DS_blk X4
+U 1 1 686F5E27
+P 5150 4100
+F 0 "X4" H 5150 4100 60  0000 C CNN
+F 1 "DS_blk" H 5150 3850 60  0000 C CNN
+F 2 "" H 5150 4100 60  0001 C CNN
+F 3 "" H 5150 4100 60  0001 C CNN
+	1    5150 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L DS_blk X5
+U 1 1 686F5E96
+P 5150 5150
+F 0 "X5" H 5150 5150 60  0000 C CNN
+F 1 "DS_blk" H 5150 4900 60  0000 C CNN
+F 2 "" H 5150 5150 60  0001 C CNN
+F 3 "" H 5150 5150 60  0001 C CNN
+	1    5150 5150
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5600 2150 5650 2150
+Wire Wire Line
+	5650 2150 5650 5550
+Wire Wire Line
+	5650 5550 4400 5550
+Wire Wire Line
+	5600 5300 5700 5300
+Wire Wire Line
+	5700 5300 5700 2350
+Wire Wire Line
+	5700 2350 5600 2350
+Wire Wire Line
+	5600 3300 5700 3300
+Connection ~ 5700 3300
+Wire Wire Line
+	5600 3100 5650 3100
+Connection ~ 5650 3100
+Wire Wire Line
+	5600 4250 5700 4250
+Connection ~ 5700 4250
+Wire Wire Line
+	5600 4050 5650 4050
+Connection ~ 5650 4050
+Wire Wire Line
+	5600 5100 5650 5100
+Connection ~ 5650 5100
+Wire Wire Line
+	5750 5000 5600 5000
+Wire Wire Line
+	5750 1950 5750 5000
+Wire Wire Line
+	5750 2050 5600 2050
+Wire Wire Line
+	5600 3000 5750 3000
+Connection ~ 5750 3000
+Wire Wire Line
+	5600 3950 5750 3950
+Connection ~ 5750 3950
+Wire Wire Line
+	4700 2150 4550 2150
+Wire Wire Line
+	4550 2150 4550 5100
+Wire Wire Line
+	4550 5100 4700 5100
+Wire Wire Line
+	4600 5200 4700 5200
+Wire Wire Line
+	4600 2250 4600 5200
+Wire Wire Line
+	4600 4150 4700 4150
+Wire Wire Line
+	4700 4050 4550 4050
+Connection ~ 4550 4050
+Wire Wire Line
+	4600 3200 4700 3200
+Connection ~ 4600 4150
+Wire Wire Line
+	4700 3100 4550 3100
+Connection ~ 4550 3100
+Wire Wire Line
+	4050 2250 4700 2250
+Connection ~ 4600 3200
+$Comp
+L CMOS_INVTR X1
+U 1 1 686F65EF
+P 4000 2150
+F 0 "X1" H 4000 2150 60  0000 C CNN
+F 1 "CMOS_INVTR" H 4050 1950 60  0000 C CNN
+F 2 "" H 4000 2150 60  0001 C CNN
+F 3 "" H 4000 2150 60  0001 C CNN
+	1    4000 2150
+	1    0    0    -1  
+$EndComp
+Connection ~ 4550 2150
+Connection ~ 4600 2250
+Wire Wire Line
+	4050 2250 4050 2450
+Wire Wire Line
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+Wire Wire Line
+	3450 2450 3450 2150
+Wire Wire Line
+	3400 2150 3600 2150
+Wire Wire Line
+	3600 2050 3600 1950
+Wire Wire Line
+	3500 1950 5750 1950
+Connection ~ 5750 2050
+Wire Wire Line
+	3600 2250 3600 2500
+Wire Wire Line
+	3500 2500 5700 2500
+Connection ~ 5700 2500
+$Comp
+L PORT U1
+U 2 1 686F670F
+P 3250 1950
+F 0 "U1" H 3300 2050 30  0000 C CNN
+F 1 "PORT" H 3250 1950 30  0000 C CNN
+F 2 "" H 3250 1950 60  0000 C CNN
+F 3 "" H 3250 1950 60  0000 C CNN
+	2    3250 1950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686F6756
+P 3150 2150
+F 0 "U1" H 3200 2250 30  0000 C CNN
+F 1 "PORT" H 3150 2150 30  0000 C CNN
+F 2 "" H 3150 2150 60  0000 C CNN
+F 3 "" H 3150 2150 60  0000 C CNN
+	1    3150 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686F6781
+P 3250 2500
+F 0 "U1" H 3300 2600 30  0000 C CNN
+F 1 "PORT" H 3250 2500 30  0000 C CNN
+F 2 "" H 3250 2500 60  0000 C CNN
+F 3 "" H 3250 2500 60  0000 C CNN
+	3    3250 2500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686F67D4
+P 4450 2050
+F 0 "U1" H 4500 2150 30  0000 C CNN
+F 1 "PORT" H 4450 2050 30  0000 C CNN
+F 2 "" H 4450 2050 60  0000 C CNN
+F 3 "" H 4450 2050 60  0000 C CNN
+	5    4450 2050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686F6822
+P 4450 2350
+F 0 "U1" H 4500 2450 30  0000 C CNN
+F 1 "PORT" H 4450 2350 30  0000 C CNN
+F 2 "" H 4450 2350 60  0000 C CNN
+F 3 "" H 4450 2350 60  0000 C CNN
+	6    4450 2350
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686F699A
+P 4450 3000
+F 0 "U1" H 4500 3100 30  0000 C CNN
+F 1 "PORT" H 4450 3000 30  0000 C CNN
+F 2 "" H 4450 3000 60  0000 C CNN
+F 3 "" H 4450 3000 60  0000 C CNN
+	7    4450 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 8 1 686F6A01
+P 4450 3300
+F 0 "U1" H 4500 3400 30  0000 C CNN
+F 1 "PORT" H 4450 3300 30  0000 C CNN
+F 2 "" H 4450 3300 60  0000 C CNN
+F 3 "" H 4450 3300 60  0000 C CNN
+	8    4450 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 686F6ACC
+P 4450 3950
+F 0 "U1" H 4500 4050 30  0000 C CNN
+F 1 "PORT" H 4450 3950 30  0000 C CNN
+F 2 "" H 4450 3950 60  0000 C CNN
+F 3 "" H 4450 3950 60  0000 C CNN
+	9    4450 3950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 686F6BE4
+P 4450 4250
+F 0 "U1" H 4500 4350 30  0000 C CNN
+F 1 "PORT" H 4450 4250 30  0000 C CNN
+F 2 "" H 4450 4250 60  0000 C CNN
+F 3 "" H 4450 4250 60  0000 C CNN
+	10   4450 4250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 11 1 686F6C5B
+P 4450 5000
+F 0 "U1" H 4500 5100 30  0000 C CNN
+F 1 "PORT" H 4450 5000 30  0000 C CNN
+F 2 "" H 4450 5000 60  0000 C CNN
+F 3 "" H 4450 5000 60  0000 C CNN
+	11   4450 5000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 12 1 686F6CBC
+P 4450 5300
+F 0 "U1" H 4500 5400 30  0000 C CNN
+F 1 "PORT" H 4450 5300 30  0000 C CNN
+F 2 "" H 4450 5300 60  0000 C CNN
+F 3 "" H 4450 5300 60  0000 C CNN
+	12   4450 5300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686F6D53
+P 4150 5550
+F 0 "U1" H 4200 5650 30  0000 C CNN
+F 1 "PORT" H 4150 5550 30  0000 C CNN
+F 2 "" H 4150 5550 60  0000 C CNN
+F 3 "" H 4150 5550 60  0000 C CNN
+	4    4150 5550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 13 1 686F70B5
+P 5850 2250
+F 0 "U1" H 5900 2350 30  0000 C CNN
+F 1 "PORT" H 5850 2250 30  0000 C CNN
+F 2 "" H 5850 2250 60  0000 C CNN
+F 3 "" H 5850 2250 60  0000 C CNN
+	13   5850 2250
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 14 1 686F7112
+P 5850 3200
+F 0 "U1" H 5900 3300 30  0000 C CNN
+F 1 "PORT" H 5850 3200 30  0000 C CNN
+F 2 "" H 5850 3200 60  0000 C CNN
+F 3 "" H 5850 3200 60  0000 C CNN
+	14   5850 3200
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 15 1 686F71D8
+P 5850 4150
+F 0 "U1" H 5900 4250 30  0000 C CNN
+F 1 "PORT" H 5850 4150 30  0000 C CNN
+F 2 "" H 5850 4150 60  0000 C CNN
+F 3 "" H 5850 4150 60  0000 C CNN
+	15   5850 4150
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 16 1 686F729F
+P 5850 5200
+F 0 "U1" H 5900 5300 30  0000 C CNN
+F 1 "PORT" H 5850 5200 30  0000 C CNN
+F 2 "" H 5850 5200 60  0000 C CNN
+F 3 "" H 5850 5200 60  0000 C CNN
+	16   5850 5200
+	-1   0    0    -1  
+$EndComp
+Connection ~ 3600 1950
+Connection ~ 3450 2150
+Connection ~ 3600 2500
+$Comp
+L SKY130mode scmode1
+U 1 1 686F754B
+P 3500 3650
+F 0 "scmode1" H 3500 3800 98  0000 C CNB
+F 1 "SKY130mode" H 3500 3550 118 0000 C CNB
+F 2 "" H 3500 3800 60  0001 C CNN
+F 3 "" H 3500 3800 60  0001 C CNN
+	1    3500 3650
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L98/SN54L98.sub b/library/SubcircuitLibrary/SN54L98/SN54L98.sub
new file mode 100644
index 000000000..240e570f1
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/SN54L98.sub
@@ -0,0 +1,21 @@
+* Subcircuit SN54L98
+.subckt SN54L98 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/sn54l98/sn54l98.cir
+.include CMOS_INVTR.sub
+.include DS_blk.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+x2 net-_u1-pad5_ net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad6_ net-_u1-pad4_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad13_ DS_blk
+x3 net-_u1-pad7_ net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad8_ net-_u1-pad4_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad14_ DS_blk
+x4 net-_u1-pad9_ net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad10_ net-_u1-pad4_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad15_ DS_blk
+x5 net-_u1-pad11_ net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad12_ net-_u1-pad4_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad16_ DS_blk
+x1 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_x1-pad4_ CMOS_INVTR
+* s c m o d e
+* Control Statements
+
+.ends SN54L98
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/SN54L98_Previous_Values.xml b/library/SubcircuitLibrary/SN54L98/SN54L98_Previous_Values.xml
new file mode 100644
index 000000000..335b7f59d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/SN54L98_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/DS_blk</field></x2><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/DS_blk</field></x3><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/DS_blk</field></x4><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/DS_blk</field></x5><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x1></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L98/analysis b/library/SubcircuitLibrary/SN54L98/analysis
new file mode 100644
index 000000000..ebd5c0a94
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L98/analysis
@@ -0,0 +1 @@
+.tran 0e-00 0e-00 0e-00
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/.spiceinit b/library/SubcircuitLibrary/SN54L99/.spiceinit
new file mode 100644
index 000000000..47fd1e960
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/.spiceinit
@@ -0,0 +1,6 @@
+
+set ngbehavior=hsa     ; set compatibility for reading PDK libs
+set ng_nomodcheck      ; don't check the model parameters
+set num_threads=8      ; CPU hardware threads available
+option noinit          ; don't print operating point data
+optran 0 0 0 100p 2n 0 ; don't use dc operating point, but transient op)
diff --git a/library/SubcircuitLibrary/SN54L99/2_in_and-cache.lib b/library/SubcircuitLibrary/SN54L99/2_in_and-cache.lib
new file mode 100644
index 000000000..cd4456570
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/2_in_and-cache.lib
@@ -0,0 +1,94 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 300 0 50 0 1 0 N
+P 2 0 1 0 -200 150 250 0 N
+P 3 0 1 0 -200 150 -200 -150 250 0 N
+X in 1 -400 0 200 R 50 50 1 1 I
+X Vdd 2 -400 100 200 R 50 50 1 1 I
+X Gnd 3 -400 -100 200 R 50 50 1 1 I
+X Out 4 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NAND_2
+#
+DEF NAND_2 X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "NAND_2" 50 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 100 0 206 760 -760 0 1 0 N 150 200 150 -200
+C 350 0 50 0 1 0 N
+P 2 0 1 0 -200 200 150 200 N
+P 3 0 1 0 -200 200 -200 -200 150 -200 N
+X in1 1 -400 50 200 R 50 50 1 1 I
+X Gnd 2 -400 -150 200 R 50 50 1 1 I
+X Vdd 3 -400 150 200 R 50 50 1 1 I
+X out 4 600 0 200 L 50 50 1 1 O
+X in2 5 -400 -50 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/2_in_and.bak b/library/SubcircuitLibrary/SN54L99/2_in_and.bak
new file mode 100644
index 000000000..4c88f6efd
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/2_in_and.bak
@@ -0,0 +1,151 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L NAND_2 X1
+U 1 1 686CC211
+P 5400 3000
+F 0 "X1" H 5500 3000 60  0000 C CNN
+F 1 "NAND_2" H 5450 2750 60  0000 C CNN
+F 2 "" H 5400 3000 60  0001 C CNN
+F 3 "" H 5400 3000 60  0001 C CNN
+	1    5400 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 686CC23B
+P 6400 3000
+F 0 "X2" H 6400 3000 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6450 2800 60  0000 C CNN
+F 2 "" H 6400 3000 60  0001 C CNN
+F 3 "" H 6400 3000 60  0001 C CNN
+	1    6400 3000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4950 2900 6000 2900
+Wire Wire Line
+	5000 2900 5000 2850
+Wire Wire Line
+	4950 3100 6000 3100
+Wire Wire Line
+	5000 3100 5000 3150
+$Comp
+L PORT U1
+U 1 1 686CC270
+P 4600 2850
+F 0 "U1" H 4650 2950 30  0000 C CNN
+F 1 "PORT" H 4600 2850 30  0000 C CNN
+F 2 "" H 4600 2850 60  0000 C CNN
+F 3 "" H 4600 2850 60  0000 C CNN
+	1    4600 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686CC2D9
+P 4750 2950
+F 0 "U1" H 4800 3050 30  0000 C CNN
+F 1 "PORT" H 4750 2950 30  0000 C CNN
+F 2 "" H 4750 2950 60  0000 C CNN
+F 3 "" H 4750 2950 60  0000 C CNN
+	3    4750 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686CC2FC
+P 4750 3050
+F 0 "U1" H 4800 3150 30  0000 C CNN
+F 1 "PORT" H 4750 3050 30  0000 C CNN
+F 2 "" H 4750 3050 60  0000 C CNN
+F 3 "" H 4750 3050 60  0000 C CNN
+	4    4750 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686CC31D
+P 4600 3150
+F 0 "U1" H 4650 3250 30  0000 C CNN
+F 1 "PORT" H 4600 3150 30  0000 C CNN
+F 2 "" H 4600 3150 60  0000 C CNN
+F 3 "" H 4600 3150 60  0000 C CNN
+	2    4600 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686CC342
+P 7200 3000
+F 0 "U1" H 7250 3100 30  0000 C CNN
+F 1 "PORT" H 7200 3000 30  0000 C CNN
+F 2 "" H 7200 3000 60  0000 C CNN
+F 3 "" H 7200 3000 60  0000 C CNN
+	5    7200 3000
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4850 2850 4950 2850
+Wire Wire Line
+	4950 2850 4950 2900
+Connection ~ 5000 2900
+Wire Wire Line
+	4850 3150 4950 3150
+Wire Wire Line
+	4950 3150 4950 3100
+Connection ~ 5000 3100
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/2_in_and.cir b/library/SubcircuitLibrary/SN54L99/2_in_and.cir
new file mode 100644
index 000000000..8a30412ec
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/2_in_and.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/2_in_and/2_in_and.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Tue Jul  8 12:32:28 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad3_ Net-_U1-Pad2_ Net-_U1-Pad1_ Net-_X1-Pad4_ Net-_U1-Pad4_ NAND_2		
+X2  Net-_X1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad5_ CMOS_INVTR		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/2_in_and.cir.out b/library/SubcircuitLibrary/SN54L99/2_in_and.cir.out
new file mode 100644
index 000000000..b2bc03524
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/2_in_and.cir.out
@@ -0,0 +1,18 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/2_in_and/2_in_and.cir
+
+.include CMOS_INVTR.sub
+.include NAND_2.sub
+
+x1 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad1_ net-_x1-pad4_ net-_u1-pad4_ NAND_2
+x2 net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad5_ CMOS_INVTR
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/2_in_and.pro b/library/SubcircuitLibrary/SN54L99/2_in_and.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/2_in_and.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/2_in_and.sch b/library/SubcircuitLibrary/SN54L99/2_in_and.sch
new file mode 100644
index 000000000..e2a29248f
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/2_in_and.sch
@@ -0,0 +1,162 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L NAND_2 X1
+U 1 1 686CC211
+P 5400 3000
+F 0 "X1" H 5500 3000 60  0000 C CNN
+F 1 "NAND_2" H 5450 2750 60  0000 C CNN
+F 2 "" H 5400 3000 60  0001 C CNN
+F 3 "" H 5400 3000 60  0001 C CNN
+	1    5400 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 686CC23B
+P 6400 3000
+F 0 "X2" H 6400 3000 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6450 2800 60  0000 C CNN
+F 2 "" H 6400 3000 60  0001 C CNN
+F 3 "" H 6400 3000 60  0001 C CNN
+	1    6400 3000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4950 2900 6000 2900
+Wire Wire Line
+	5000 2900 5000 2850
+Wire Wire Line
+	4950 3100 6000 3100
+Wire Wire Line
+	5000 3100 5000 3150
+$Comp
+L PORT U1
+U 1 1 686CC270
+P 4600 2850
+F 0 "U1" H 4650 2950 30  0000 C CNN
+F 1 "PORT" H 4600 2850 30  0000 C CNN
+F 2 "" H 4600 2850 60  0000 C CNN
+F 3 "" H 4600 2850 60  0000 C CNN
+	1    4600 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686CC2D9
+P 4750 2950
+F 0 "U1" H 4800 3050 30  0000 C CNN
+F 1 "PORT" H 4750 2950 30  0000 C CNN
+F 2 "" H 4750 2950 60  0000 C CNN
+F 3 "" H 4750 2950 60  0000 C CNN
+	3    4750 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686CC2FC
+P 4750 3050
+F 0 "U1" H 4800 3150 30  0000 C CNN
+F 1 "PORT" H 4750 3050 30  0000 C CNN
+F 2 "" H 4750 3050 60  0000 C CNN
+F 3 "" H 4750 3050 60  0000 C CNN
+	4    4750 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686CC31D
+P 4600 3150
+F 0 "U1" H 4650 3250 30  0000 C CNN
+F 1 "PORT" H 4600 3150 30  0000 C CNN
+F 2 "" H 4600 3150 60  0000 C CNN
+F 3 "" H 4600 3150 60  0000 C CNN
+	2    4600 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686CC342
+P 7200 3000
+F 0 "U1" H 7250 3100 30  0000 C CNN
+F 1 "PORT" H 7200 3000 30  0000 C CNN
+F 2 "" H 7200 3000 60  0000 C CNN
+F 3 "" H 7200 3000 60  0000 C CNN
+	5    7200 3000
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4850 2850 4950 2850
+Wire Wire Line
+	4950 2850 4950 2900
+Connection ~ 5000 2900
+Wire Wire Line
+	4850 3150 4950 3150
+Wire Wire Line
+	4950 3150 4950 3100
+Connection ~ 5000 3100
+$Comp
+L SKY130mode scmode1
+U 1 1 686CC4AC
+P 8250 3200
+F 0 "scmode1" H 8250 3350 98  0000 C CNB
+F 1 "SKY130mode" H 8250 3100 118 0000 C CNB
+F 2 "" H 8250 3350 60  0001 C CNN
+F 3 "" H 8250 3350 60  0001 C CNN
+	1    8250 3200
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/2_in_and.sub b/library/SubcircuitLibrary/SN54L99/2_in_and.sub
new file mode 100644
index 000000000..6c2a85281
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/2_in_and.sub
@@ -0,0 +1,12 @@
+* Subcircuit 2_in_and
+.subckt 2_in_and net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/2_in_and/2_in_and.cir
+.include CMOS_INVTR.sub
+.include NAND_2.sub
+
+x1 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad1_ net-_x1-pad4_ net-_u1-pad4_ NAND_2
+x2 net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad5_ CMOS_INVTR
+* s c m o d e
+* Control Statements
+
+.ends 2_in_and
diff --git a/library/SubcircuitLibrary/SN54L99/2_in_and_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/2_in_and_Previous_Values.xml
new file mode 100644
index 000000000..ecb007d93
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/2_in_and_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x2></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/3_in_and-cache.lib b/library/SubcircuitLibrary/SN54L99/3_in_and-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/3_in_and-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/3_in_and.cir b/library/SubcircuitLibrary/SN54L99/3_in_and.cir
new file mode 100644
index 000000000..d5cf8cd48
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/3_in_and.cir
@@ -0,0 +1,20 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/3_in_and/3_in_and.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 28 01:51:23 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC2-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC6  Net-_SC1-Pad1_ Net-_SC5-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC3  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad4_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC3-Pad3_ Net-_SC2-Pad2_ Net-_SC4-Pad3_ Net-_SC3-Pad4_ sky130_fd_pr__nfet_01v8		
+SC5  Net-_SC4-Pad3_ Net-_SC5-Pad2_ Net-_SC3-Pad4_ Net-_SC3-Pad4_ sky130_fd_pr__nfet_01v8		
+SC7  Net-_SC1-Pad1_ Net-_SC1-Pad1_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC8  Net-_SC1-Pad1_ Net-_SC1-Pad1_ Net-_SC3-Pad4_ Net-_SC3-Pad4_ sky130_fd_pr__nfet_01v8		
+scmode1  SKY130mode		
+U1  Net-_SC1-Pad2_ Net-_SC2-Pad2_ Net-_SC1-Pad3_ Net-_SC3-Pad4_ Net-_SC5-Pad2_ Net-_SC1-Pad1_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/3_in_and.cir.out b/library/SubcircuitLibrary/SN54L99/3_in_and.cir.out
new file mode 100644
index 000000000..91515569e
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/3_in_and.cir.out
@@ -0,0 +1,23 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/3_in_and/3_in_and.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc6 net-_sc1-pad1_ net-_sc5-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc3-pad3_ net-_sc2-pad2_ net-_sc4-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc5 net-_sc4-pad3_ net-_sc5-pad2_ net-_sc3-pad4_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc7 net-_sc1-pad1_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc8 net-_sc1-pad1_ net-_sc1-pad1_ net-_sc3-pad4_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* u1  net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc3-pad4_ net-_sc5-pad2_ net-_sc1-pad1_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/3_in_and.pro b/library/SubcircuitLibrary/SN54L99/3_in_and.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/3_in_and.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/3_in_and.sch b/library/SubcircuitLibrary/SN54L99/3_in_and.sch
new file mode 100644
index 000000000..413d03374
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/3_in_and.sch
@@ -0,0 +1,324 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 685EFB75
+P 4650 2000
+F 0 "SC1" H 4700 2300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4950 2087 50  0000 R CNN
+F 2 "" H 4650 500 50  0001 C CNN
+F 3 "" H 4650 2000 50  0001 C CNN
+	1    4650 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 685EFBB1
+P 6200 2000
+F 0 "SC2" H 6250 2300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6500 2087 50  0000 R CNN
+F 2 "" H 6200 500 50  0001 C CNN
+F 3 "" H 6200 2000 50  0001 C CNN
+	1    6200 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC6
+U 1 1 685EFC40
+P 7750 2000
+F 0 "SC6" H 7800 2300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 8050 2087 50  0000 R CNN
+F 2 "" H 7750 500 50  0001 C CNN
+F 3 "" H 7750 2000 50  0001 C CNN
+	1    7750 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 685EFDF8
+P 6200 2950
+F 0 "SC3" H 6250 3250 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6500 3037 50  0000 R CNN
+F 2 "" H 6200 1450 50  0001 C CNN
+F 3 "" H 6200 2950 50  0001 C CNN
+	1    6200 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 685EFE69
+P 6200 3750
+F 0 "SC4" H 6250 4050 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6500 3837 50  0000 R CNN
+F 2 "" H 6200 2250 50  0001 C CNN
+F 3 "" H 6200 3750 50  0001 C CNN
+	1    6200 3750
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC5
+U 1 1 685EFEFC
+P 6600 4450
+F 0 "SC5" H 6650 4750 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6900 4537 50  0000 R CNN
+F 2 "" H 6600 2950 50  0001 C CNN
+F 3 "" H 6600 4450 50  0001 C CNN
+	1    6600 4450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC7
+U 1 1 685F0235
+P 8600 2000
+F 0 "SC7" H 8650 2300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 8900 2087 50  0000 R CNN
+F 2 "" H 8600 500 50  0001 C CNN
+F 3 "" H 8600 2000 50  0001 C CNN
+	1    8600 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC8
+U 1 1 685F02AE
+P 8600 4500
+F 0 "SC8" H 8650 4800 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 8900 4587 50  0000 R CNN
+F 2 "" H 8600 3000 50  0001 C CNN
+F 3 "" H 8600 4500 50  0001 C CNN
+	1    8600 4500
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 685F03F9
+P 10450 6050
+F 0 "scmode1" H 10450 6200 98  0000 C CNB
+F 1 "SKY130mode" H 10450 5950 118 0000 C CNB
+F 2 "" H 10450 6200 60  0001 C CNN
+F 3 "" H 10450 6200 60  0001 C CNN
+	1    10450 6050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 685F046F
+P 3800 2000
+F 0 "U1" H 3850 2100 30  0000 C CNN
+F 1 "PORT" H 3800 2000 30  0000 C CNN
+F 2 "" H 3800 2000 60  0000 C CNN
+F 3 "" H 3800 2000 60  0000 C CNN
+	1    3800 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685F04F8
+P 5400 2000
+F 0 "U1" H 5450 2100 30  0000 C CNN
+F 1 "PORT" H 5400 2000 30  0000 C CNN
+F 2 "" H 5400 2000 60  0000 C CNN
+F 3 "" H 5400 2000 60  0000 C CNN
+	2    5400 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685F05AF
+P 6950 2000
+F 0 "U1" H 7000 2100 30  0000 C CNN
+F 1 "PORT" H 6950 2000 30  0000 C CNN
+F 2 "" H 6950 2000 60  0000 C CNN
+F 3 "" H 6950 2000 60  0000 C CNN
+	5    6950 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 685F0660
+P 9350 2950
+F 0 "U1" H 9400 3050 30  0000 C CNN
+F 1 "PORT" H 9350 2950 30  0000 C CNN
+F 2 "" H 9350 2950 60  0000 C CNN
+F 3 "" H 9350 2950 60  0000 C CNN
+	6    9350 2950
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685F087C
+P 6150 1250
+F 0 "U1" H 6200 1350 30  0000 C CNN
+F 1 "PORT" H 6150 1250 30  0000 C CNN
+F 2 "" H 6150 1250 60  0000 C CNN
+F 3 "" H 6150 1250 60  0000 C CNN
+	3    6150 1250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685F095F
+P 6150 5100
+F 0 "U1" H 6200 5200 30  0000 C CNN
+F 1 "PORT" H 6150 5100 30  0000 C CNN
+F 2 "" H 6150 5100 60  0000 C CNN
+F 3 "" H 6150 5100 60  0000 C CNN
+	4    6150 5100
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4850 1700 4850 1600
+Wire Wire Line
+	4850 1600 8850 1600
+Wire Wire Line
+	8800 1600 8800 1700
+Wire Wire Line
+	6400 1250 6400 1700
+Connection ~ 6400 1600
+Wire Wire Line
+	7950 1700 7950 1600
+Connection ~ 7950 1600
+Wire Wire Line
+	4850 2300 4850 2350
+Wire Wire Line
+	4850 2350 8800 2350
+Wire Wire Line
+	8800 2300 8800 4200
+Wire Wire Line
+	6400 2300 6400 2650
+Connection ~ 6400 2350
+Wire Wire Line
+	7950 2300 7950 2350
+Connection ~ 7950 2350
+Wire Wire Line
+	4750 2000 4950 2000
+Wire Wire Line
+	4950 2000 4950 1600
+Connection ~ 4950 1600
+Wire Wire Line
+	6300 2000 6500 2000
+Wire Wire Line
+	6500 2000 6500 1600
+Connection ~ 6500 1600
+Wire Wire Line
+	7850 2000 8050 2000
+Wire Wire Line
+	8050 2000 8050 1600
+Connection ~ 8050 1600
+Wire Wire Line
+	8700 2000 8850 2000
+Wire Wire Line
+	8850 2000 8850 1600
+Connection ~ 8800 1600
+Wire Wire Line
+	4350 2000 4050 2000
+Wire Wire Line
+	5900 2000 5650 2000
+Wire Wire Line
+	7450 2000 7200 2000
+Wire Wire Line
+	8300 2000 8300 4500
+Wire Wire Line
+	8300 2450 6400 2450
+Connection ~ 6400 2450
+Wire Wire Line
+	5900 2950 4250 2950
+Wire Wire Line
+	4250 2950 4250 2000
+Connection ~ 4250 2000
+Wire Wire Line
+	5900 3750 5700 3750
+Wire Wire Line
+	5700 3750 5700 2000
+Connection ~ 5700 2000
+Wire Wire Line
+	6900 4450 7350 4450
+Wire Wire Line
+	7350 4450 7350 2000
+Connection ~ 7350 2000
+Wire Wire Line
+	6400 5100 6400 4750
+Wire Wire Line
+	8700 4500 8900 4500
+Wire Wire Line
+	8900 4500 8900 4900
+Wire Wire Line
+	8900 4900 6350 4900
+Connection ~ 6400 4900
+Wire Wire Line
+	8800 4800 8800 4900
+Connection ~ 8800 4900
+Wire Wire Line
+	6500 4450 6350 4450
+Wire Wire Line
+	6350 4450 6350 4900
+Wire Wire Line
+	6400 4050 6400 4150
+Wire Wire Line
+	6300 3750 7000 3750
+Wire Wire Line
+	7000 2950 7000 4900
+Connection ~ 7000 4900
+Wire Wire Line
+	6400 3250 6400 3450
+Wire Wire Line
+	6300 2950 7000 2950
+Connection ~ 7000 3750
+Connection ~ 8800 2350
+Connection ~ 8300 2450
+Wire Wire Line
+	9100 2950 8800 2950
+Connection ~ 8800 2950
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/3_in_and.sub b/library/SubcircuitLibrary/SN54L99/3_in_and.sub
new file mode 100644
index 000000000..be48d3260
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/3_in_and.sub
@@ -0,0 +1,17 @@
+* Subcircuit 3_in_and
+.subckt 3_in_and net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc3-pad4_ net-_sc5-pad2_ net-_sc1-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/3_in_and/3_in_and.cir
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc6 net-_sc1-pad1_ net-_sc5-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc3-pad3_ net-_sc2-pad2_ net-_sc4-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc5 net-_sc4-pad3_ net-_sc5-pad2_ net-_sc3-pad4_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc7 net-_sc1-pad1_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc8 net-_sc1-pad1_ net-_sc1-pad1_ net-_sc3-pad4_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends 3_in_and
diff --git a/library/SubcircuitLibrary/SN54L99/3_in_and_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/3_in_and_Previous_Values.xml
new file mode 100644
index 000000000..d3c2ae7ff
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/3_in_and_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=3 l=0.15</field></sc2><sc6><field>w=3 l=0.15</field></sc6><sc3><field>w=1 l=0.15</field></sc3><sc4><field>w=1 l=0.15</field></sc4><sc5><field>w=1 l=0.15</field></sc5><sc7><field>w=3 l=0.15</field></sc7><sc8><field>w=1 l=0.15</field></sc8></devicemodel><subcircuit /></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/4_in_and-cache.lib b/library/SubcircuitLibrary/SN54L99/4_in_and-cache.lib
new file mode 100644
index 000000000..dc52f48f5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/4_in_and-cache.lib
@@ -0,0 +1,96 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# 2_in_and
+#
+DEF 2_in_and X 0 40 Y Y 1 F N
+F0 "X" 50 0 60 H V C CNN
+F1 "2_in_and" 0 -250 60 H V C CNN
+F2 "" 750 -150 60 H I C CNN
+F3 "" 750 -150 60 H I C CNN
+DRAW
+A 50 0 206 760 -760 0 1 0 N 100 200 100 -200
+P 2 0 1 0 -200 200 100 200 N
+P 3 0 1 0 -200 200 -200 -200 100 -200 N
+X Vdd 1 -400 150 200 R 50 50 1 1 I
+X in1 2 -400 50 200 R 50 50 1 1 I
+X in2 3 -400 -50 200 R 50 50 1 1 I
+X Gnd 4 -400 -150 200 R 50 50 1 1 I
+X out 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# 3_in_and
+#
+DEF 3_in_and X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "3_in_and" 50 -300 60 H V C CNN
+F2 "" 600 -150 60 H I C CNN
+F3 "" 600 -150 60 H I C CNN
+DRAW
+A 100 0 255 787 -787 0 1 0 N 150 250 150 -250
+P 2 0 1 0 -150 250 100 250 N
+P 2 0 1 0 150 250 100 250 N
+P 3 0 1 0 -150 250 -150 -250 150 -250 N
+X in1 1 -350 100 200 R 50 50 1 1 I
+X in2 2 -350 0 200 R 50 50 1 1 I
+X Vdd 3 -350 200 200 R 50 50 1 1 I
+X Gnd 4 -350 -200 200 R 50 50 1 1 I
+X in3 5 -350 -100 200 R 50 50 1 1 I
+X out 6 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/4_in_and.cir b/library/SubcircuitLibrary/SN54L99/4_in_and.cir
new file mode 100644
index 000000000..4e996a12a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/4_in_and.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/4_in_and/4_in_and.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Tue Jul  8 12:53:37 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad1_ Net-_U1-Pad5_ Net-_U1-Pad4_ Net-_X1-Pad6_ 3_in_and		
+X2  Net-_U1-Pad1_ Net-_X1-Pad6_ Net-_U1-Pad6_ Net-_U1-Pad5_ Net-_U1-Pad7_ 2_in_and		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/4_in_and.cir.out b/library/SubcircuitLibrary/SN54L99/4_in_and.cir.out
new file mode 100644
index 000000000..53ad1ee41
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/4_in_and.cir.out
@@ -0,0 +1,24 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/4_in_and/4_in_and.cir
+
+.include 3_in_and.sub
+.include 2_in_and.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad5_ net-_u1-pad4_ net-_x1-pad6_ 3_in_and
+x2 net-_u1-pad1_ net-_x1-pad6_ net-_u1-pad6_ net-_u1-pad5_ net-_u1-pad7_ 2_in_and
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/4_in_and.pro b/library/SubcircuitLibrary/SN54L99/4_in_and.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/4_in_and.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/4_in_and.sch b/library/SubcircuitLibrary/SN54L99/4_in_and.sch
new file mode 100644
index 000000000..db84ffe7b
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/4_in_and.sch
@@ -0,0 +1,196 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L 3_in_and X1
+U 1 1 686CC60C
+P 5250 2300
+F 0 "X1" H 5350 2300 60  0000 C CNN
+F 1 "3_in_and" H 5300 2000 60  0000 C CNN
+F 2 "" H 5850 2150 60  0001 C CNN
+F 3 "" H 5850 2150 60  0001 C CNN
+	1    5250 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L 2_in_and X2
+U 1 1 686CC667
+P 6200 2350
+F 0 "X2" H 6250 2350 60  0000 C CNN
+F 1 "2_in_and" H 6200 2100 60  0000 C CNN
+F 2 "" H 6950 2200 60  0001 C CNN
+F 3 "" H 6950 2200 60  0001 C CNN
+	1    6200 2350
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5800 2150 5800 2200
+Wire Wire Line
+	4750 2150 5800 2150
+Wire Wire Line
+	4900 2150 4900 2100
+Wire Wire Line
+	5800 2450 5800 2500
+Wire Wire Line
+	4750 2450 5800 2450
+Wire Wire Line
+	4900 2450 4900 2500
+Wire Wire Line
+	5800 2400 5650 2400
+Wire Wire Line
+	5650 2400 5650 2600
+Wire Wire Line
+	5650 2600 4750 2600
+Wire Wire Line
+	4900 2400 4750 2400
+Wire Wire Line
+	4900 2300 4750 2300
+Wire Wire Line
+	4900 2200 4750 2200
+Connection ~ 4900 2150
+Connection ~ 4900 2450
+$Comp
+L PORT U1
+U 1 1 686CC71D
+P 4500 2100
+F 0 "U1" H 4550 2200 30  0000 C CNN
+F 1 "PORT" H 4500 2100 30  0000 C CNN
+F 2 "" H 4500 2100 60  0000 C CNN
+F 3 "" H 4500 2100 60  0000 C CNN
+	1    4500 2100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686CC7AC
+P 4500 2200
+F 0 "U1" H 4550 2300 30  0000 C CNN
+F 1 "PORT" H 4500 2200 30  0000 C CNN
+F 2 "" H 4500 2200 60  0000 C CNN
+F 3 "" H 4500 2200 60  0000 C CNN
+	2    4500 2200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686CC80F
+P 4500 2300
+F 0 "U1" H 4550 2400 30  0000 C CNN
+F 1 "PORT" H 4500 2300 30  0000 C CNN
+F 2 "" H 4500 2300 60  0000 C CNN
+F 3 "" H 4500 2300 60  0000 C CNN
+	3    4500 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686CC8BF
+P 4500 2400
+F 0 "U1" H 4550 2500 30  0000 C CNN
+F 1 "PORT" H 4500 2400 30  0000 C CNN
+F 2 "" H 4500 2400 60  0000 C CNN
+F 3 "" H 4500 2400 60  0000 C CNN
+	4    4500 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686CC9C0
+P 4500 2500
+F 0 "U1" H 4550 2600 30  0000 C CNN
+F 1 "PORT" H 4500 2500 30  0000 C CNN
+F 2 "" H 4500 2500 60  0000 C CNN
+F 3 "" H 4500 2500 60  0000 C CNN
+	5    4500 2500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686CC9F9
+P 4500 2600
+F 0 "U1" H 4550 2700 30  0000 C CNN
+F 1 "PORT" H 4500 2600 30  0000 C CNN
+F 2 "" H 4500 2600 60  0000 C CNN
+F 3 "" H 4500 2600 60  0000 C CNN
+	6    4500 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686CCA50
+P 6900 2350
+F 0 "U1" H 6950 2450 30  0000 C CNN
+F 1 "PORT" H 6900 2350 30  0000 C CNN
+F 2 "" H 6900 2350 60  0000 C CNN
+F 3 "" H 6900 2350 60  0000 C CNN
+	7    6900 2350
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4750 2150 4750 2100
+Wire Wire Line
+	4750 2450 4750 2500
+$Comp
+L SKY130mode scmode1
+U 1 1 686CCB41
+P 7350 3350
+F 0 "scmode1" H 7350 3500 98  0000 C CNB
+F 1 "SKY130mode" H 7350 3250 118 0000 C CNB
+F 2 "" H 7350 3500 60  0001 C CNN
+F 3 "" H 7350 3500 60  0001 C CNN
+	1    7350 3350
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/4_in_and.sub b/library/SubcircuitLibrary/SN54L99/4_in_and.sub
new file mode 100644
index 000000000..c7be023c0
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/4_in_and.sub
@@ -0,0 +1,18 @@
+* Subcircuit 4_in_and
+.subckt 4_in_and net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/4_in_and/4_in_and.cir
+.include 3_in_and.sub
+.include 2_in_and.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad5_ net-_u1-pad4_ net-_x1-pad6_ 3_in_and
+x2 net-_u1-pad1_ net-_x1-pad6_ net-_u1-pad6_ net-_u1-pad5_ net-_u1-pad7_ 2_in_and
+* s c m o d e
+* Control Statements
+
+.ends 4_in_and
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/4_in_and_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/4_in_and_Previous_Values.xml
new file mode 100644
index 000000000..2699e57a6
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/4_in_and_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/3_in_and</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/2_in_and</field></x2></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_Buf-cache.lib b/library/SubcircuitLibrary/SN54L99/CMOS_Buf-cache.lib
new file mode 100644
index 000000000..a4da279a5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_Buf-cache.lib
@@ -0,0 +1,74 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 300 0 50 0 1 0 N
+P 2 0 1 0 -200 150 250 0 N
+P 3 0 1 0 -200 150 -200 -150 250 0 N
+X in 1 -400 0 200 R 50 50 1 1 I
+X Vdd 2 -400 100 200 R 50 50 1 1 I
+X Gnd 3 -400 -100 200 R 50 50 1 1 I
+X Out 4 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_Buf-rescue.lib b/library/SubcircuitLibrary/SN54L99/CMOS_Buf-rescue.lib
new file mode 100644
index 000000000..2e8cabd8d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_Buf-rescue.lib
@@ -0,0 +1,22 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR-RESCUE-CMOS_Buf
+#
+DEF CMOS_INVTR-RESCUE-CMOS_Buf X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR-RESCUE-CMOS_Buf" 100 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 550 0 50 0 1 0 N
+P 2 0 1 0 -450 250 500 0 N
+P 3 0 1 0 -450 250 -450 -250 500 0 N
+X IN 1 -650 0 200 R 50 50 1 1 I
+X VDD 2 -650 150 200 R 50 50 1 1 I
+X GND 3 -650 -150 200 R 50 50 1 1 I
+X OUT 4 800 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_Buf.bak b/library/SubcircuitLibrary/SN54L99/CMOS_Buf.bak
new file mode 100644
index 000000000..18c8ff97d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_Buf.bak
@@ -0,0 +1,149 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L CMOS_INVTR X1
+U 1 1 68655F03
+P 4950 3300
+F 0 "X1" H 4950 3300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5050 3050 60  0000 C CNN
+F 2 "" H 4950 3300 60  0001 C CNN
+F 3 "" H 4950 3300 60  0001 C CNN
+	1    4950 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 68655F1A
+P 6500 3300
+F 0 "X2" H 6500 3300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6600 3050 60  0000 C CNN
+F 2 "" H 6500 3300 60  0001 C CNN
+F 3 "" H 6500 3300 60  0001 C CNN
+	1    6500 3300
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5750 3300 5850 3300
+Wire Wire Line
+	4300 3150 4300 3050
+Wire Wire Line
+	4200 3050 5850 3050
+Wire Wire Line
+	5850 3050 5850 3150
+Wire Wire Line
+	4300 3450 4300 3550
+Wire Wire Line
+	4200 3550 5850 3550
+Wire Wire Line
+	5850 3550 5850 3450
+$Comp
+L PORT U1
+U 1 1 68655FBD
+P 3950 3050
+F 0 "U1" H 4000 3150 30  0000 C CNN
+F 1 "PORT" H 3950 3050 30  0000 C CNN
+F 2 "" H 3950 3050 60  0000 C CNN
+F 3 "" H 3950 3050 60  0000 C CNN
+	1    3950 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68655FF0
+P 4050 3300
+F 0 "U1" H 4100 3400 30  0000 C CNN
+F 1 "PORT" H 4050 3300 30  0000 C CNN
+F 2 "" H 4050 3300 60  0000 C CNN
+F 3 "" H 4050 3300 60  0000 C CNN
+	3    4050 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68656163
+P 3950 3550
+F 0 "U1" H 4000 3650 30  0000 C CNN
+F 1 "PORT" H 3950 3550 30  0000 C CNN
+F 2 "" H 3950 3550 60  0000 C CNN
+F 3 "" H 3950 3550 60  0000 C CNN
+	2    3950 3550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68656242
+P 7550 3300
+F 0 "U1" H 7600 3400 30  0000 C CNN
+F 1 "PORT" H 7550 3300 30  0000 C CNN
+F 2 "" H 7550 3300 60  0000 C CNN
+F 3 "" H 7550 3300 60  0000 C CNN
+	4    7550 3300
+	-1   0    0    -1  
+$EndComp
+Connection ~ 4300 3050
+Connection ~ 4300 3550
+$Comp
+L SKY130mode scmode1
+U 1 1 68656379
+P 7900 4200
+F 0 "scmode1" H 7900 4350 98  0000 C CNB
+F 1 "SKY130mode" H 7900 4100 118 0000 C CNB
+F 2 "" H 7900 4350 60  0001 C CNN
+F 3 "" H 7900 4350 60  0001 C CNN
+	1    7900 4200
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_Buf.cir b/library/SubcircuitLibrary/SN54L99/CMOS_Buf.cir
new file mode 100644
index 000000000..a1907752c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_Buf.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_Buf/CMOS_Buf.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sun Jul  6 10:50:24 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ PORT		
+scmode1  SKY130mode		
+X1  Net-_U1-Pad3_ Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_X1-Pad4_ CMOS_INVTR		
+X2  Net-_X1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad4_ CMOS_INVTR		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_Buf.cir.out b/library/SubcircuitLibrary/SN54L99/CMOS_Buf.cir.out
new file mode 100644
index 000000000..c1aedf115
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_Buf.cir.out
@@ -0,0 +1,23 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_buf/cmos_buf.cir
+
+.include CMOS_INVTR.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ port
+* s c m o d e
+x1 net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad2_ net-_x1-pad4_ CMOS_INVTR
+x2 net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad4_ CMOS_INVTR
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_Buf.pro b/library/SubcircuitLibrary/SN54L99/CMOS_Buf.pro
new file mode 100644
index 000000000..78fa1002c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_Buf.pro
@@ -0,0 +1,74 @@
+update=Sun Jul  6 10:49:25 2025
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=CMOS_Buf-rescue
+LibName2=adc-dac
+LibName3=memory
+LibName4=xilinx
+LibName5=microcontrollers
+LibName6=dsp
+LibName7=microchip
+LibName8=analog_switches
+LibName9=motorola
+LibName10=texas
+LibName11=intel
+LibName12=audio
+LibName13=interface
+LibName14=digital-audio
+LibName15=philips
+LibName16=display
+LibName17=cypress
+LibName18=siliconi
+LibName19=opto
+LibName20=atmel
+LibName21=contrib
+LibName22=power
+LibName23=eSim_Plot
+LibName24=transistors
+LibName25=conn
+LibName26=eSim_User
+LibName27=regul
+LibName28=74xx
+LibName29=cmos4000
+LibName30=eSim_Analog
+LibName31=eSim_Devices
+LibName32=eSim_Digital
+LibName33=eSim_Hybrid
+LibName34=eSim_Miscellaneous
+LibName35=eSim_Power
+LibName36=eSim_Sources
+LibName37=eSim_Subckt
+LibName38=eSim_Nghdl
+LibName39=eSim_Ngveri
+LibName40=eSim_SKY130
+LibName41=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_Buf.sch b/library/SubcircuitLibrary/SN54L99/CMOS_Buf.sch
new file mode 100644
index 000000000..0cdb5a05c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_Buf.sch
@@ -0,0 +1,151 @@
+EESchema Schematic File Version 2
+LIBS:CMOS_Buf-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:CMOS_Buf-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L PORT U1
+U 1 1 68655FBD
+P 3950 3050
+F 0 "U1" H 4000 3150 30  0000 C CNN
+F 1 "PORT" H 3950 3050 30  0000 C CNN
+F 2 "" H 3950 3050 60  0000 C CNN
+F 3 "" H 3950 3050 60  0000 C CNN
+	1    3950 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68655FF0
+P 4050 3300
+F 0 "U1" H 4100 3400 30  0000 C CNN
+F 1 "PORT" H 4050 3300 30  0000 C CNN
+F 2 "" H 4050 3300 60  0000 C CNN
+F 3 "" H 4050 3300 60  0000 C CNN
+	3    4050 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68656163
+P 3950 3550
+F 0 "U1" H 4000 3650 30  0000 C CNN
+F 1 "PORT" H 3950 3550 30  0000 C CNN
+F 2 "" H 3950 3550 60  0000 C CNN
+F 3 "" H 3950 3550 60  0000 C CNN
+	2    3950 3550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68656242
+P 7050 3300
+F 0 "U1" H 7100 3400 30  0000 C CNN
+F 1 "PORT" H 7050 3300 30  0000 C CNN
+F 2 "" H 7050 3300 60  0000 C CNN
+F 3 "" H 7050 3300 60  0000 C CNN
+	4    7050 3300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 68656379
+P 7900 4200
+F 0 "scmode1" H 7900 4350 98  0000 C CNB
+F 1 "SKY130mode" H 7900 4100 118 0000 C CNB
+F 2 "" H 7900 4350 60  0001 C CNN
+F 3 "" H 7900 4350 60  0001 C CNN
+	1    7900 4200
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X1
+U 1 1 686A07F2
+P 4700 3300
+F 0 "X1" H 4700 3300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 4750 3100 60  0000 C CNN
+F 2 "" H 4700 3300 60  0001 C CNN
+F 3 "" H 4700 3300 60  0001 C CNN
+	1    4700 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 686A0855
+P 6250 3300
+F 0 "X2" H 6250 3300 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6300 3100 60  0000 C CNN
+F 2 "" H 6250 3300 60  0001 C CNN
+F 3 "" H 6250 3300 60  0001 C CNN
+	1    6250 3300
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5250 3300 5850 3300
+Wire Wire Line
+	4300 3050 4300 3200
+Wire Wire Line
+	4200 3050 5850 3050
+Wire Wire Line
+	5850 3050 5850 3200
+Wire Wire Line
+	4300 3400 4300 3550
+Wire Wire Line
+	5850 3550 4200 3550
+Wire Wire Line
+	5850 3400 5850 3550
+Connection ~ 4300 3050
+Connection ~ 4300 3550
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_Buf.sub b/library/SubcircuitLibrary/SN54L99/CMOS_Buf.sub
new file mode 100644
index 000000000..8d50195f6
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_Buf.sub
@@ -0,0 +1,17 @@
+* Subcircuit CMOS_Buf
+.subckt CMOS_Buf net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_buf/cmos_buf.cir
+.include CMOS_INVTR.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+* s c m o d e
+x1 net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad2_ net-_x1-pad4_ CMOS_INVTR
+x2 net-_x1-pad4_ net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad4_ CMOS_INVTR
+* Control Statements
+
+.ends CMOS_Buf
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_Buf_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/CMOS_Buf_Previous_Values.xml
new file mode 100644
index 000000000..b0e9c717d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_Buf_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x2></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_INVTR-cache.lib b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.cir b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.cir
new file mode 100644
index 000000000..d89b6087d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR/CMOS_INVTR.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 22:03:21 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.cir.out b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.cir.out
new file mode 100644
index 000000000..4058a1829
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.cir.out
@@ -0,0 +1,22 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_invtr/cmos_invtr.cir
+
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.pro b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.sch b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.sch
new file mode 100644
index 000000000..aa7a7ee81
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.sch
@@ -0,0 +1,161 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 684B982F
+P 5350 2950
+F 0 "SC1" H 5400 3250 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5650 3037 50  0000 R CNN
+F 2 "" H 5350 1450 50  0001 C CNN
+F 3 "" H 5350 2950 50  0001 C CNN
+	1    5350 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684B9856
+P 5350 3800
+F 0 "SC2" H 5400 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5650 3887 50  0000 R CNN
+F 2 "" H 5350 2300 50  0001 C CNN
+F 3 "" H 5350 3800 50  0001 C CNN
+	1    5350 3800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684B98AD
+P 4550 3300
+F 0 "U1" H 4600 3400 30  0000 C CNN
+F 1 "PORT" H 4550 3300 30  0000 C CNN
+F 2 "" H 4550 3300 60  0000 C CNN
+F 3 "" H 4550 3300 60  0000 C CNN
+	1    4550 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684B98D8
+P 6300 3350
+F 0 "U1" H 6350 3450 30  0000 C CNN
+F 1 "PORT" H 6300 3350 30  0000 C CNN
+F 2 "" H 6300 3350 60  0000 C CNN
+F 3 "" H 6300 3350 60  0000 C CNN
+	4    6300 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684B9935
+P 5300 4350
+F 0 "U1" H 5350 4450 30  0000 C CNN
+F 1 "PORT" H 5300 4350 30  0000 C CNN
+F 2 "" H 5300 4350 60  0000 C CNN
+F 3 "" H 5300 4350 60  0000 C CNN
+	3    5300 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684B999A
+P 5300 2350
+F 0 "U1" H 5350 2450 30  0000 C CNN
+F 1 "PORT" H 5300 2350 30  0000 C CNN
+F 2 "" H 5300 2350 60  0000 C CNN
+F 3 "" H 5300 2350 60  0000 C CNN
+	2    5300 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684B99CD
+P 7950 3000
+F 0 "scmode1" H 7950 3150 98  0000 C CNB
+F 1 "SKY130mode" H 7950 2900 118 0000 C CNB
+F 2 "" H 7950 3150 60  0001 C CNN
+F 3 "" H 7950 3150 60  0001 C CNN
+	1    7950 3000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5550 2650 5550 2350
+Wire Wire Line
+	5450 2950 5600 2950
+Wire Wire Line
+	5600 2950 5600 2550
+Wire Wire Line
+	5600 2550 5550 2550
+Connection ~ 5550 2550
+Wire Wire Line
+	5550 3250 5550 3500
+Wire Wire Line
+	6050 3350 5550 3350
+Connection ~ 5550 3350
+Wire Wire Line
+	5050 2950 5050 3800
+Wire Wire Line
+	4800 3300 5050 3300
+Connection ~ 5050 3300
+Wire Wire Line
+	5450 3800 5600 3800
+Wire Wire Line
+	5600 3800 5600 4150
+Wire Wire Line
+	5600 4150 5550 4150
+Wire Wire Line
+	5550 4100 5550 4350
+Connection ~ 5550 4150
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.sub b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.sub
new file mode 100644
index 000000000..9dff1ae3f
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR.sub
@@ -0,0 +1,16 @@
+* Subcircuit CMOS_INVTR
+.subckt CMOS_INVTR net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_invtr/cmos_invtr.cir
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends CMOS_INVTR
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/CMOS_INVTR_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR_Previous_Values.xml
new file mode 100644
index 000000000..0fa71b2d4
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/CMOS_INVTR_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/DS_blk-cache.lib b/library/SubcircuitLibrary/SN54L99/DS_blk-cache.lib
new file mode 100644
index 000000000..f32a82db2
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/DS_blk-cache.lib
@@ -0,0 +1,147 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# 2_in_and
+#
+DEF 2_in_and X 0 40 Y Y 1 F N
+F0 "X" 50 0 60 H V C CNN
+F1 "2_in_and" 0 -250 60 H V C CNN
+F2 "" 750 -150 60 H I C CNN
+F3 "" 750 -150 60 H I C CNN
+DRAW
+A 50 0 206 760 -760 0 1 0 N 100 200 100 -200
+P 2 0 1 0 -200 200 100 200 N
+P 3 0 1 0 -200 200 -200 -200 100 -200 N
+X Vdd 1 -400 150 200 R 50 50 1 1 I
+X in1 2 -400 50 200 R 50 50 1 1 I
+X in2 3 -400 -50 200 R 50 50 1 1 I
+X Gnd 4 -400 -150 200 R 50 50 1 1 I
+X out 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CMOS_Buf
+#
+DEF CMOS_Buf X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_Buf" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+P 2 0 1 0 -250 150 250 0 N
+P 3 0 1 0 -250 150 -250 -150 250 0 N
+X Vdd 1 -450 100 200 R 50 50 1 1 I
+X Gnd 2 -450 -100 200 R 50 50 1 1 I
+X in 3 -450 0 200 R 50 50 1 1 I
+X Out 4 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 300 0 50 0 1 0 N
+P 2 0 1 0 -200 150 250 0 N
+P 3 0 1 0 -200 150 -200 -150 250 0 N
+X in 1 -400 0 200 R 50 50 1 1 I
+X Vdd 2 -400 100 200 R 50 50 1 1 I
+X Gnd 3 -400 -100 200 R 50 50 1 1 I
+X Out 4 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# D_FF
+#
+DEF D_FF X 0 40 Y Y 1 F N
+F0 "X" 100 100 60 H V C CNN
+F1 "D_FF" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -200 200 200 -150 0 1 0 N
+X D 1 -400 50 200 R 50 50 1 1 I
+X Clk 2 -400 -50 200 R 50 50 1 1 I
+X Vdd 3 0 400 200 D 50 50 1 1 I
+X Gnd 4 0 -350 200 U 50 50 1 1 I
+X Q 5 400 -50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NOR_2
+#
+DEF NOR_2 X 0 40 Y Y 1 F N
+F0 "X" 50 0 60 H V C CNN
+F1 "NOR_2" 0 -250 60 H V C CNN
+F2 "" -100 0 60 H I C CNN
+F3 "" -100 0 60 H I C CNN
+DRAW
+A -350 0 206 760 -760 0 1 0 N -300 200 -300 -200
+A -226 239 445 -996 -324 0 1 0 N -300 -200 150 0
+A -197 -174 388 1054 266 0 1 0 N -300 200 150 0
+C 200 0 50 0 1 0 N
+X in1 1 -350 50 200 R 50 50 1 1 I
+X Gnd 2 -400 -150 200 R 50 50 1 1 I
+X Vdd 3 -400 150 200 R 50 50 1 1 I
+X in2 4 -350 -50 200 R 50 50 1 1 I
+X out 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/DS_blk.bak b/library/SubcircuitLibrary/SN54L99/DS_blk.bak
new file mode 100644
index 000000000..367ca003a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/DS_blk.bak
@@ -0,0 +1,280 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:DS_blk-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L 2_in_and X1
+U 1 1 686E8DA4
+P 4450 2650
+F 0 "X1" H 4500 2650 60  0000 C CNN
+F 1 "2_in_and" H 4450 2400 60  0000 C CNN
+F 2 "" H 5200 2500 60  0001 C CNN
+F 3 "" H 5200 2500 60  0001 C CNN
+	1    4450 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L 2_in_and X2
+U 1 1 686E8DC5
+P 4450 3500
+F 0 "X2" H 4500 3500 60  0000 C CNN
+F 1 "2_in_and" H 4450 3250 60  0000 C CNN
+F 2 "" H 5200 3350 60  0001 C CNN
+F 3 "" H 5200 3350 60  0001 C CNN
+	1    4450 3500
+	1    0    0    -1  
+$EndComp
+$Comp
+L NOR_2 X3
+U 1 1 686E8DDE
+P 5750 3050
+F 0 "X3" H 5800 3050 60  0000 C CNN
+F 1 "NOR_2" H 5750 2800 60  0000 C CNN
+F 2 "" H 5650 3050 60  0001 C CNN
+F 3 "" H 5650 3050 60  0001 C CNN
+	1    5750 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L D_FF X4
+U 1 1 686E8E0C
+P 7050 3100
+F 0 "X4" H 7150 3200 60  0000 C CNN
+F 1 "D_FF" H 7050 2900 60  0000 C CNN
+F 2 "" H 7050 3100 60  0001 C CNN
+F 3 "" H 7050 3100 60  0001 C CNN
+	1    7050 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 686E8E39
+P 8550 4100
+F 0 "scmode1" H 8550 4250 98  0000 C CNB
+F 1 "SKY130mode" H 8550 4000 118 0000 C CNB
+F 2 "" H 8550 4250 60  0001 C CNN
+F 3 "" H 8550 4250 60  0001 C CNN
+	1    8550 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686E8E58
+P 3800 2600
+F 0 "U1" H 3850 2700 30  0000 C CNN
+F 1 "PORT" H 3800 2600 30  0000 C CNN
+F 2 "" H 3800 2600 60  0000 C CNN
+F 3 "" H 3800 2600 60  0000 C CNN
+	1    3800 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686E8F0F
+P 3800 2700
+F 0 "U1" H 3850 2800 30  0000 C CNN
+F 1 "PORT" H 3800 2700 30  0000 C CNN
+F 2 "" H 3800 2700 60  0000 C CNN
+F 3 "" H 3800 2700 60  0000 C CNN
+	2    3800 2700
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686E8F53
+P 3800 3450
+F 0 "U1" H 3850 3550 30  0000 C CNN
+F 1 "PORT" H 3800 3450 30  0000 C CNN
+F 2 "" H 3800 3450 60  0000 C CNN
+F 3 "" H 3800 3450 60  0000 C CNN
+	3    3800 3450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686E8F80
+P 3800 3550
+F 0 "U1" H 3850 3650 30  0000 C CNN
+F 1 "PORT" H 3800 3550 30  0000 C CNN
+F 2 "" H 3800 3550 60  0000 C CNN
+F 3 "" H 3800 3550 60  0000 C CNN
+	4    3800 3550
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686E901D
+P 6400 3150
+F 0 "U1" H 6450 3250 30  0000 C CNN
+F 1 "PORT" H 6400 3150 30  0000 C CNN
+F 2 "" H 6400 3150 60  0000 C CNN
+F 3 "" H 6400 3150 60  0000 C CNN
+	5    6400 3150
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 8 1 686E9099
+P 7700 3150
+F 0 "U1" H 7750 3250 30  0000 C CNN
+F 1 "PORT" H 7700 3150 30  0000 C CNN
+F 2 "" H 7700 3150 60  0000 C CNN
+F 3 "" H 7700 3150 60  0000 C CNN
+	8    7700 3150
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686E91B5
+P 7300 2400
+F 0 "U1" H 7350 2500 30  0000 C CNN
+F 1 "PORT" H 7300 2400 30  0000 C CNN
+F 2 "" H 7300 2400 60  0000 C CNN
+F 3 "" H 7300 2400 60  0000 C CNN
+	6    7300 2400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686E922A
+P 7300 3550
+F 0 "U1" H 7350 3650 30  0000 C CNN
+F 1 "PORT" H 7300 3550 30  0000 C CNN
+F 2 "" H 7300 3550 60  0000 C CNN
+F 3 "" H 7300 3550 60  0000 C CNN
+	7    7300 3550
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4900 2650 4900 3000
+Wire Wire Line
+	4900 3000 5400 3000
+Wire Wire Line
+	4900 3500 4900 3100
+Wire Wire Line
+	4900 3100 5400 3100
+Wire Wire Line
+	4050 2400 4050 2500
+Wire Wire Line
+	4050 2400 7050 2400
+Wire Wire Line
+	7050 2400 7050 2700
+Connection ~ 7050 2400
+Connection ~ 7050 3550
+Wire Wire Line
+	4050 3650 4050 3800
+Wire Wire Line
+	4050 3800 7050 3800
+Wire Wire Line
+	7050 3800 7050 3450
+Wire Wire Line
+	5350 2900 5350 2400
+Connection ~ 5350 2400
+Wire Wire Line
+	5350 3200 5350 3800
+Connection ~ 5350 3800
+Wire Wire Line
+	4050 3350 4050 3200
+Wire Wire Line
+	4050 3200 5150 3200
+Wire Wire Line
+	5150 3200 5150 2400
+Connection ~ 5150 2400
+Wire Wire Line
+	4050 2800 4050 2950
+Wire Wire Line
+	4050 2950 5200 2950
+Wire Wire Line
+	5200 2950 5200 3800
+Connection ~ 5200 3800
+$Comp
+L CMOS_Buf X5
+U 1 1 686F47C1
+P 6350 2650
+F 0 "X5" H 6350 2650 60  0000 C CNN
+F 1 "CMOS_Buf" H 6350 2450 60  0000 C CNN
+F 2 "" H 6350 2650 60  0001 C CNN
+F 3 "" H 6350 2650 60  0001 C CNN
+	1    6350 2650
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6200 3050 6200 2900
+Wire Wire Line
+	6200 2900 5800 2900
+Wire Wire Line
+	5800 2900 5800 2650
+Wire Wire Line
+	5800 2650 5900 2650
+Wire Wire Line
+	6800 2650 6850 2650
+Wire Wire Line
+	6850 2650 6850 2850
+Wire Wire Line
+	6850 2850 6650 2850
+Wire Wire Line
+	6650 2850 6650 3050
+Wire Wire Line
+	5900 2550 5900 2400
+Connection ~ 5900 2400
+Wire Wire Line
+	5900 2750 5900 2800
+Wire Wire Line
+	5900 2800 6300 2800
+Wire Wire Line
+	6300 2800 6300 3550
+Wire Wire Line
+	6300 3550 7050 3550
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/DS_blk.cir b/library/SubcircuitLibrary/SN54L99/DS_blk.cir
new file mode 100644
index 000000000..a033859ed
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/DS_blk.cir
@@ -0,0 +1,18 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/DS_blk/DS_blk.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Thu Jul 10 11:45:04 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad6_ Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad7_ Net-_X1-Pad5_ 2_in_and		
+X2  Net-_U1-Pad6_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad7_ Net-_X2-Pad5_ 2_in_and		
+X3  Net-_X1-Pad5_ Net-_U1-Pad7_ Net-_U1-Pad6_ Net-_X2-Pad5_ Net-_X3-Pad5_ NOR_2		
+X4  Net-_X3-Pad5_ Net-_X4-Pad2_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ D_FF		
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ PORT		
+X5  Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad5_ Net-_X5-Pad4_ CMOS_Buf		
+X6  Net-_X5-Pad4_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_X4-Pad2_ CMOS_INVTR		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/DS_blk.cir.out b/library/SubcircuitLibrary/SN54L99/DS_blk.cir.out
new file mode 100644
index 000000000..9cbba8aaf
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/DS_blk.cir.out
@@ -0,0 +1,31 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/ds_blk/ds_blk.cir
+
+.include D_FF.sub
+.include 2_in_and.sub
+.include CMOS_INVTR.sub
+.include NOR_2.sub
+.include CMOS_Buf.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+x1 net-_u1-pad6_ net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad7_ net-_x1-pad5_ 2_in_and
+x2 net-_u1-pad6_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad7_ net-_x2-pad5_ 2_in_and
+x3 net-_x1-pad5_ net-_u1-pad7_ net-_u1-pad6_ net-_x2-pad5_ net-_x3-pad5_ NOR_2
+x4 net-_x3-pad5_ net-_x4-pad2_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ D_FF
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ port
+x5 net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad5_ net-_x5-pad4_ CMOS_Buf
+x6 net-_x5-pad4_ net-_u1-pad6_ net-_u1-pad7_ net-_x4-pad2_ CMOS_INVTR
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/DS_blk.pro b/library/SubcircuitLibrary/SN54L99/DS_blk.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/DS_blk.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/DS_blk.sch b/library/SubcircuitLibrary/SN54L99/DS_blk.sch
new file mode 100644
index 000000000..b08a03928
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/DS_blk.sch
@@ -0,0 +1,293 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:DS_blk-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L 2_in_and X1
+U 1 1 686E8DA4
+P 4450 2650
+F 0 "X1" H 4500 2650 60  0000 C CNN
+F 1 "2_in_and" H 4450 2400 60  0000 C CNN
+F 2 "" H 5200 2500 60  0001 C CNN
+F 3 "" H 5200 2500 60  0001 C CNN
+	1    4450 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L 2_in_and X2
+U 1 1 686E8DC5
+P 4450 3500
+F 0 "X2" H 4500 3500 60  0000 C CNN
+F 1 "2_in_and" H 4450 3250 60  0000 C CNN
+F 2 "" H 5200 3350 60  0001 C CNN
+F 3 "" H 5200 3350 60  0001 C CNN
+	1    4450 3500
+	1    0    0    -1  
+$EndComp
+$Comp
+L NOR_2 X3
+U 1 1 686E8DDE
+P 5750 3050
+F 0 "X3" H 5800 3050 60  0000 C CNN
+F 1 "NOR_2" H 5750 2800 60  0000 C CNN
+F 2 "" H 5650 3050 60  0001 C CNN
+F 3 "" H 5650 3050 60  0001 C CNN
+	1    5750 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L D_FF X4
+U 1 1 686E8E0C
+P 7050 3100
+F 0 "X4" H 7150 3200 60  0000 C CNN
+F 1 "D_FF" H 7050 2900 60  0000 C CNN
+F 2 "" H 7050 3100 60  0001 C CNN
+F 3 "" H 7050 3100 60  0001 C CNN
+	1    7050 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 686E8E39
+P 8550 4100
+F 0 "scmode1" H 8550 4250 98  0000 C CNB
+F 1 "SKY130mode" H 8550 4000 118 0000 C CNB
+F 2 "" H 8550 4250 60  0001 C CNN
+F 3 "" H 8550 4250 60  0001 C CNN
+	1    8550 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686E8E58
+P 3800 2600
+F 0 "U1" H 3850 2700 30  0000 C CNN
+F 1 "PORT" H 3800 2600 30  0000 C CNN
+F 2 "" H 3800 2600 60  0000 C CNN
+F 3 "" H 3800 2600 60  0000 C CNN
+	1    3800 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686E8F0F
+P 3800 2700
+F 0 "U1" H 3850 2800 30  0000 C CNN
+F 1 "PORT" H 3800 2700 30  0000 C CNN
+F 2 "" H 3800 2700 60  0000 C CNN
+F 3 "" H 3800 2700 60  0000 C CNN
+	2    3800 2700
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686E8F53
+P 3800 3450
+F 0 "U1" H 3850 3550 30  0000 C CNN
+F 1 "PORT" H 3800 3450 30  0000 C CNN
+F 2 "" H 3800 3450 60  0000 C CNN
+F 3 "" H 3800 3450 60  0000 C CNN
+	3    3800 3450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686E8F80
+P 3800 3550
+F 0 "U1" H 3850 3650 30  0000 C CNN
+F 1 "PORT" H 3800 3550 30  0000 C CNN
+F 2 "" H 3800 3550 60  0000 C CNN
+F 3 "" H 3800 3550 60  0000 C CNN
+	4    3800 3550
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686E901D
+P 5200 4200
+F 0 "U1" H 5250 4300 30  0000 C CNN
+F 1 "PORT" H 5200 4200 30  0000 C CNN
+F 2 "" H 5200 4200 60  0000 C CNN
+F 3 "" H 5200 4200 60  0000 C CNN
+	5    5200 4200
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 8 1 686E9099
+P 7700 3150
+F 0 "U1" H 7750 3250 30  0000 C CNN
+F 1 "PORT" H 7700 3150 30  0000 C CNN
+F 2 "" H 7700 3150 60  0000 C CNN
+F 3 "" H 7700 3150 60  0000 C CNN
+	8    7700 3150
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686E91B5
+P 7300 2400
+F 0 "U1" H 7350 2500 30  0000 C CNN
+F 1 "PORT" H 7300 2400 30  0000 C CNN
+F 2 "" H 7300 2400 60  0000 C CNN
+F 3 "" H 7300 2400 60  0000 C CNN
+	6    7300 2400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686E922A
+P 7300 3550
+F 0 "U1" H 7350 3650 30  0000 C CNN
+F 1 "PORT" H 7300 3550 30  0000 C CNN
+F 2 "" H 7300 3550 60  0000 C CNN
+F 3 "" H 7300 3550 60  0000 C CNN
+	7    7300 3550
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4900 2650 4900 3000
+Wire Wire Line
+	4900 3000 5400 3000
+Wire Wire Line
+	4900 3500 4900 3100
+Wire Wire Line
+	4900 3100 5400 3100
+Wire Wire Line
+	4050 2400 4050 2500
+Wire Wire Line
+	4050 2400 7050 2400
+Wire Wire Line
+	7050 2400 7050 2700
+Connection ~ 7050 2400
+Connection ~ 7050 3550
+Wire Wire Line
+	4050 3650 4050 3800
+Wire Wire Line
+	4050 3800 7050 3800
+Wire Wire Line
+	7050 3800 7050 3450
+Wire Wire Line
+	5350 2900 5350 2400
+Connection ~ 5350 2400
+Wire Wire Line
+	5350 3200 5350 3800
+Connection ~ 5350 3800
+Wire Wire Line
+	4050 3350 4050 3200
+Wire Wire Line
+	4050 3200 5150 3200
+Wire Wire Line
+	5150 3200 5150 2400
+Connection ~ 5150 2400
+Wire Wire Line
+	4050 2800 4050 2950
+Wire Wire Line
+	4050 2950 5200 2950
+Wire Wire Line
+	5200 2950 5200 3800
+Connection ~ 5200 3800
+Wire Wire Line
+	6200 3050 6650 3050
+$Comp
+L CMOS_Buf X5
+U 1 1 686F5D94
+P 5900 4200
+F 0 "X5" H 5900 4200 60  0000 C CNN
+F 1 "CMOS_Buf" H 5900 4000 60  0000 C CNN
+F 2 "" H 5900 4200 60  0001 C CNN
+F 3 "" H 5900 4200 60  0001 C CNN
+	1    5900 4200
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X6
+U 1 1 686F5DD5
+P 6750 4200
+F 0 "X6" H 6750 4200 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6800 4000 60  0000 C CNN
+F 2 "" H 6750 4200 60  0001 C CNN
+F 3 "" H 6750 4200 60  0001 C CNN
+	1    6750 4200
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	7300 4200 7300 3850
+Wire Wire Line
+	7300 3850 6650 3850
+Wire Wire Line
+	6650 3850 6650 3150
+Wire Wire Line
+	5450 4100 5450 4000
+Wire Wire Line
+	5450 4000 6350 4000
+Wire Wire Line
+	6350 2400 6350 4100
+Connection ~ 6350 2400
+Connection ~ 6350 4000
+Wire Wire Line
+	6350 4300 6350 4400
+Wire Wire Line
+	5450 4400 7550 4400
+Wire Wire Line
+	7550 4400 7550 3750
+Wire Wire Line
+	7550 3750 7050 3750
+Wire Wire Line
+	7050 3750 7050 3550
+Wire Wire Line
+	5450 4300 5450 4400
+Connection ~ 6350 4400
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/DS_blk.sub b/library/SubcircuitLibrary/SN54L99/DS_blk.sub
new file mode 100644
index 000000000..6fe4576b5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/DS_blk.sub
@@ -0,0 +1,25 @@
+* Subcircuit DS_blk
+.subckt DS_blk net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/ds_blk/ds_blk.cir
+.include D_FF.sub
+.include 2_in_and.sub
+.include CMOS_INVTR.sub
+.include NOR_2.sub
+.include CMOS_Buf.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+x1 net-_u1-pad6_ net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad7_ net-_x1-pad5_ 2_in_and
+x2 net-_u1-pad6_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad7_ net-_x2-pad5_ 2_in_and
+x3 net-_x1-pad5_ net-_u1-pad7_ net-_u1-pad6_ net-_x2-pad5_ net-_x3-pad5_ NOR_2
+x4 net-_x3-pad5_ net-_x4-pad2_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ D_FF
+* s c m o d e
+x5 net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad5_ net-_x5-pad4_ CMOS_Buf
+x6 net-_x5-pad4_ net-_u1-pad6_ net-_u1-pad7_ net-_x4-pad2_ CMOS_INVTR
+* Control Statements
+
+.ends DS_blk
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/DS_blk_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/DS_blk_Previous_Values.xml
new file mode 100644
index 000000000..d06329f5a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/DS_blk_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/2_in_and</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/2_in_and</field></x2><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NOR_2</field></x3><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_FF</field></x4><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_Buf</field></x5><x6><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x6></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/D_FF-cache.lib b/library/SubcircuitLibrary/SN54L99/D_FF-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/D_FF-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/D_FF.bak b/library/SubcircuitLibrary/SN54L99/D_FF.bak
new file mode 100644
index 000000000..61b02ff48
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/D_FF.bak
@@ -0,0 +1,246 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode?
+U 1 1 685A3E76
+P 9400 3200
+F 0 "scmode?" H 9400 3350 98  0000 C CNB
+F 1 "SKY130mode" H 9400 3100 118 0000 C CNB
+F 2 "" H 9400 3350 60  0001 C CNN
+F 3 "" H 9400 3350 60  0001 C CNN
+	1    9400 3200
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC?
+U 1 1 685A3EBD
+P 4000 3300
+F 0 "SC?" H 4050 3600 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4300 3387 50  0000 R CNN
+F 2 "" H 4000 1800 50  0001 C CNN
+F 3 "" H 4000 3300 50  0001 C CNN
+	1    4000 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC?
+U 1 1 685A3EFC
+P 4000 4100
+F 0 "SC?" H 4050 4400 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4187 50  0000 R CNN
+F 2 "" H 4000 2600 50  0001 C CNN
+F 3 "" H 4000 4100 50  0001 C CNN
+	1    4000 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC?
+U 1 1 685A3F47
+P 4000 4900
+F 0 "SC?" H 4050 5200 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4987 50  0000 R CNN
+F 2 "" H 4000 3400 50  0001 C CNN
+F 3 "" H 4000 4900 50  0001 C CNN
+	1    4000 4900
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC?
+U 1 1 685A3F7A
+P 4950 3700
+F 0 "SC?" H 5000 4000 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5250 3787 50  0000 R CNN
+F 2 "" H 4950 2200 50  0001 C CNN
+F 3 "" H 4950 3700 50  0001 C CNN
+	1    4950 3700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC?
+U 1 1 685A3FCF
+P 4950 4500
+F 0 "SC?" H 5000 4800 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5250 4587 50  0000 R CNN
+F 2 "" H 4950 3000 50  0001 C CNN
+F 3 "" H 4950 4500 50  0001 C CNN
+	1    4950 4500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 1 1 685A401A
+P 3250 3550
+F 0 "U?" H 3300 3650 30  0000 C CNN
+F 1 "PORT" H 3250 3550 30  0000 C CNN
+F 2 "" H 3250 3550 60  0000 C CNN
+F 3 "" H 3250 3550 60  0000 C CNN
+	1    3250 3550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 2 1 685A40FF
+P 3250 4100
+F 0 "U?" H 3300 4200 30  0000 C CNN
+F 1 "PORT" H 3250 4100 30  0000 C CNN
+F 2 "" H 3250 4100 60  0000 C CNN
+F 3 "" H 3250 4100 60  0000 C CNN
+	2    3250 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 3 1 685A4132
+P 3950 2750
+F 0 "U?" H 4000 2850 30  0000 C CNN
+F 1 "PORT" H 3950 2750 30  0000 C CNN
+F 2 "" H 3950 2750 60  0000 C CNN
+F 3 "" H 3950 2750 60  0000 C CNN
+	3    3950 2750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 4 1 685A41B1
+P 3950 5350
+F 0 "U?" H 4000 5450 30  0000 C CNN
+F 1 "PORT" H 3950 5350 30  0000 C CNN
+F 2 "" H 3950 5350 60  0000 C CNN
+F 3 "" H 3950 5350 60  0000 C CNN
+	4    3950 5350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U?
+U 5 1 685A4206
+P 5700 4100
+F 0 "U?" H 5750 4200 30  0000 C CNN
+F 1 "PORT" H 5700 4100 30  0000 C CNN
+F 2 "" H 5700 4100 60  0000 C CNN
+F 3 "" H 5700 4100 60  0000 C CNN
+	5    5700 4100
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	4200 3600 4200 3800
+Wire Wire Line
+	3700 3300 3600 3300
+Wire Wire Line
+	3600 3300 3600 4900
+Wire Wire Line
+	3600 4900 3700 4900
+Wire Wire Line
+	3500 3550 3600 3550
+Connection ~ 3600 3550
+Wire Wire Line
+	3500 4100 3700 4100
+Wire Wire Line
+	4200 2750 4200 3000
+Wire Wire Line
+	4650 3700 4200 3700
+Connection ~ 4200 3700
+Wire Wire Line
+	4200 4400 4200 4600
+Wire Wire Line
+	4650 4500 4200 4500
+Connection ~ 4200 4500
+Wire Wire Line
+	5150 4000 5150 4200
+Wire Wire Line
+	5450 4100 5150 4100
+Connection ~ 5150 4100
+Wire Wire Line
+	4200 5200 4200 5350
+Wire Wire Line
+	4100 4900 4250 4900
+Wire Wire Line
+	4250 4900 4250 5250
+Wire Wire Line
+	4200 5250 5150 5250
+Connection ~ 4200 5250
+Wire Wire Line
+	5150 5250 5150 4800
+Connection ~ 4250 5250
+Wire Wire Line
+	5050 4500 5200 4500
+Wire Wire Line
+	5200 4500 5200 4850
+Wire Wire Line
+	5200 4850 5150 4850
+Connection ~ 5150 4850
+Wire Wire Line
+	4100 4100 4250 4100
+Wire Wire Line
+	4250 4100 4250 4500
+Connection ~ 4250 4500
+Wire Wire Line
+	4100 3300 4250 3300
+Wire Wire Line
+	4250 3300 4250 2950
+Wire Wire Line
+	4200 2950 5150 2950
+Connection ~ 4200 2950
+Wire Wire Line
+	5150 2950 5150 3400
+Connection ~ 4250 2950
+Wire Wire Line
+	5050 3700 5200 3700
+Wire Wire Line
+	5200 3700 5200 3350
+Wire Wire Line
+	5200 3350 5150 3350
+Connection ~ 5150 3350
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/D_FF.cir b/library/SubcircuitLibrary/SN54L99/D_FF.cir
new file mode 100644
index 000000000..7d45c3cd5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/D_FF.cir
@@ -0,0 +1,17 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_FF/D_FF.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sun Jul  6 10:25:49 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+scmode1  SKY130mode		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC2-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+SC3  Net-_SC2-Pad3_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC4-Pad1_ Net-_SC1-Pad1_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC5  Net-_SC4-Pad1_ Net-_SC2-Pad3_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC2-Pad2_ Net-_SC1-Pad3_ Net-_SC3-Pad3_ Net-_SC4-Pad1_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/D_FF.cir.out b/library/SubcircuitLibrary/SN54L99/D_FF.cir.out
new file mode 100644
index 000000000..9d076c7f0
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/D_FF.cir.out
@@ -0,0 +1,25 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/d_ff/d_ff.cir
+
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+* s c m o d e
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc3 net-_sc2-pad3_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc4-pad1_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc4-pad1_ net-_sc2-pad3_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc3-pad3_ net-_sc4-pad1_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/D_FF.pro b/library/SubcircuitLibrary/SN54L99/D_FF.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/D_FF.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/D_FF.sch b/library/SubcircuitLibrary/SN54L99/D_FF.sch
new file mode 100644
index 000000000..722069493
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/D_FF.sch
@@ -0,0 +1,246 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode1
+U 1 1 685A3E76
+P 9400 3200
+F 0 "scmode1" H 9400 3350 98  0000 C CNB
+F 1 "SKY130mode" H 9400 3100 118 0000 C CNB
+F 2 "" H 9400 3350 60  0001 C CNN
+F 3 "" H 9400 3350 60  0001 C CNN
+	1    9400 3200
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 685A3EBD
+P 4000 3300
+F 0 "SC1" H 4050 3600 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4300 3387 50  0000 R CNN
+F 2 "" H 4000 1800 50  0001 C CNN
+F 3 "" H 4000 3300 50  0001 C CNN
+	1    4000 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 685A3EFC
+P 4000 4100
+F 0 "SC2" H 4050 4400 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4187 50  0000 R CNN
+F 2 "" H 4000 2600 50  0001 C CNN
+F 3 "" H 4000 4100 50  0001 C CNN
+	1    4000 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 685A3F47
+P 4000 4900
+F 0 "SC3" H 4050 5200 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4987 50  0000 R CNN
+F 2 "" H 4000 3400 50  0001 C CNN
+F 3 "" H 4000 4900 50  0001 C CNN
+	1    4000 4900
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 685A3F7A
+P 4950 3700
+F 0 "SC4" H 5000 4000 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5250 3787 50  0000 R CNN
+F 2 "" H 4950 2200 50  0001 C CNN
+F 3 "" H 4950 3700 50  0001 C CNN
+	1    4950 3700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC5
+U 1 1 685A3FCF
+P 4950 4500
+F 0 "SC5" H 5000 4800 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5250 4587 50  0000 R CNN
+F 2 "" H 4950 3000 50  0001 C CNN
+F 3 "" H 4950 4500 50  0001 C CNN
+	1    4950 4500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 685A401A
+P 3250 3550
+F 0 "U1" H 3300 3650 30  0000 C CNN
+F 1 "PORT" H 3250 3550 30  0000 C CNN
+F 2 "" H 3250 3550 60  0000 C CNN
+F 3 "" H 3250 3550 60  0000 C CNN
+	1    3250 3550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685A40FF
+P 3250 4100
+F 0 "U1" H 3300 4200 30  0000 C CNN
+F 1 "PORT" H 3250 4100 30  0000 C CNN
+F 2 "" H 3250 4100 60  0000 C CNN
+F 3 "" H 3250 4100 60  0000 C CNN
+	2    3250 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685A4132
+P 3950 2750
+F 0 "U1" H 4000 2850 30  0000 C CNN
+F 1 "PORT" H 3950 2750 30  0000 C CNN
+F 2 "" H 3950 2750 60  0000 C CNN
+F 3 "" H 3950 2750 60  0000 C CNN
+	3    3950 2750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685A41B1
+P 3950 5350
+F 0 "U1" H 4000 5450 30  0000 C CNN
+F 1 "PORT" H 3950 5350 30  0000 C CNN
+F 2 "" H 3950 5350 60  0000 C CNN
+F 3 "" H 3950 5350 60  0000 C CNN
+	4    3950 5350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685A4206
+P 5700 4100
+F 0 "U1" H 5750 4200 30  0000 C CNN
+F 1 "PORT" H 5700 4100 30  0000 C CNN
+F 2 "" H 5700 4100 60  0000 C CNN
+F 3 "" H 5700 4100 60  0000 C CNN
+	5    5700 4100
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	4200 3600 4200 3800
+Wire Wire Line
+	3700 3300 3600 3300
+Wire Wire Line
+	3600 3300 3600 4900
+Wire Wire Line
+	3600 4900 3700 4900
+Wire Wire Line
+	3500 3550 3600 3550
+Connection ~ 3600 3550
+Wire Wire Line
+	3500 4100 3700 4100
+Wire Wire Line
+	4200 2750 4200 3000
+Wire Wire Line
+	4650 3700 4200 3700
+Connection ~ 4200 3700
+Wire Wire Line
+	4200 4400 4200 4600
+Wire Wire Line
+	4650 4500 4200 4500
+Connection ~ 4200 4500
+Wire Wire Line
+	5150 4000 5150 4200
+Wire Wire Line
+	5450 4100 5150 4100
+Connection ~ 5150 4100
+Wire Wire Line
+	4200 5200 4200 5350
+Wire Wire Line
+	4100 4900 4250 4900
+Wire Wire Line
+	4250 4900 4250 5250
+Wire Wire Line
+	4200 5250 5150 5250
+Connection ~ 4200 5250
+Wire Wire Line
+	5150 5250 5150 4800
+Connection ~ 4250 5250
+Wire Wire Line
+	5050 4500 5200 4500
+Wire Wire Line
+	5200 4500 5200 4850
+Wire Wire Line
+	5200 4850 5150 4850
+Connection ~ 5150 4850
+Wire Wire Line
+	4100 4100 4250 4100
+Wire Wire Line
+	4250 4100 4250 4500
+Connection ~ 4250 4500
+Wire Wire Line
+	4100 3300 4250 3300
+Wire Wire Line
+	4250 3300 4250 2950
+Wire Wire Line
+	4200 2950 5150 2950
+Connection ~ 4200 2950
+Wire Wire Line
+	5150 2950 5150 3400
+Connection ~ 4250 2950
+Wire Wire Line
+	5050 3700 5200 3700
+Wire Wire Line
+	5200 3700 5200 3350
+Wire Wire Line
+	5200 3350 5150 3350
+Connection ~ 5150 3350
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/D_FF.sub b/library/SubcircuitLibrary/SN54L99/D_FF.sub
new file mode 100644
index 000000000..d686ca626
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/D_FF.sub
@@ -0,0 +1,19 @@
+* Subcircuit D_FF
+.subckt D_FF net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc3-pad3_ net-_sc4-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/d_ff/d_ff.cir
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+* s c m o d e
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc3 net-_sc2-pad3_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc4-pad1_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc4-pad1_ net-_sc2-pad3_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* Control Statements
+
+.ends D_FF
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/D_FF_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/D_FF_Previous_Values.xml
new file mode 100644
index 000000000..87f2534ab
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/D_FF_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2><sc3><field>w=1 l=0.15</field></sc3><sc4><field>w=3 l=0.15</field></sc4><sc5><field>w=1 l=0.15</field></sc5></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_2-cache.lib b/library/SubcircuitLibrary/SN54L99/NAND_2-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_2-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_2.bak b/library/SubcircuitLibrary/SN54L99/NAND_2.bak
new file mode 100644
index 000000000..ad9819396
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_2.bak
@@ -0,0 +1,221 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 684AF0E9
+P 4750 2050
+F 0 "SC2" H 4800 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5050 2137 50  0000 R CNN
+F 2 "" H 4750 550 50  0001 C CNN
+F 3 "" H 4750 2050 50  0001 C CNN
+	1    4750 2050
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684AF14C
+P 5150 2750
+F 0 "SC3" H 5200 3050 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5450 2837 50  0000 R CNN
+F 2 "" H 5150 1250 50  0001 C CNN
+F 3 "" H 5150 2750 50  0001 C CNN
+	1    5150 2750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF1CF
+P 4200 3600
+F 0 "SC1" H 4250 3900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4500 3687 50  0000 R CNN
+F 2 "" H 4200 2100 50  0001 C CNN
+F 3 "" H 4200 3600 50  0001 C CNN
+	1    4200 3600
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 684AF20C
+P 5550 3600
+F 0 "SC4" H 5600 3900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5850 3687 50  0000 R CNN
+F 2 "" H 5550 2100 50  0001 C CNN
+F 3 "" H 5550 3600 50  0001 C CNN
+	1    5550 3600
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF271
+P 4650 1550
+F 0 "U1" H 4700 1650 30  0000 C CNN
+F 1 "PORT" H 4650 1550 30  0000 C CNN
+F 2 "" H 4650 1550 60  0000 C CNN
+F 3 "" H 4650 1550 60  0000 C CNN
+	3    4650 1550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF336
+P 3550 2650
+F 0 "U1" H 3600 2750 30  0000 C CNN
+F 1 "PORT" H 3550 2650 30  0000 C CNN
+F 2 "" H 3550 2650 60  0000 C CNN
+F 3 "" H 3550 2650 60  0000 C CNN
+	1    3550 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AF413
+P 6200 2750
+F 0 "U1" H 6250 2850 30  0000 C CNN
+F 1 "PORT" H 6200 2750 30  0000 C CNN
+F 2 "" H 6200 2750 60  0000 C CNN
+F 3 "" H 6200 2750 60  0000 C CNN
+	4    6200 2750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF82C
+P 6200 3150
+F 0 "U1" H 6250 3250 30  0000 C CNN
+F 1 "PORT" H 6200 3150 30  0000 C CNN
+F 2 "" H 6200 3150 60  0000 C CNN
+F 3 "" H 6200 3150 60  0000 C CNN
+	5    6200 3150
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF895
+P 4550 4050
+F 0 "U1" H 4600 4150 30  0000 C CNN
+F 1 "PORT" H 4550 4050 30  0000 C CNN
+F 2 "" H 4550 4050 60  0000 C CNN
+F 3 "" H 4550 4050 60  0000 C CNN
+	2    4550 4050
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4400 3900 5350 3900
+Wire Wire Line
+	4800 4050 4800 3900
+Connection ~ 4800 3900
+Wire Wire Line
+	4300 3600 4450 3600
+Wire Wire Line
+	4450 3600 4450 3900
+Connection ~ 4450 3900
+Wire Wire Line
+	5450 3600 5300 3600
+Wire Wire Line
+	5300 3600 5300 3900
+Connection ~ 5300 3900
+Wire Wire Line
+	4400 3300 5350 3300
+Wire Wire Line
+	4950 3050 4950 3300
+Connection ~ 4950 3300
+Wire Wire Line
+	5950 3150 4950 3150
+Connection ~ 4950 3150
+Wire Wire Line
+	5450 2750 5950 2750
+Wire Wire Line
+	5850 2750 5850 3600
+Wire Wire Line
+	5050 2750 4900 2750
+Wire Wire Line
+	4900 2750 4900 2400
+Wire Wire Line
+	4900 2400 4950 2400
+Wire Wire Line
+	4950 2350 4950 2450
+Connection ~ 4950 2400
+Wire Wire Line
+	4450 2050 3900 2050
+Wire Wire Line
+	3900 2050 3900 3600
+Wire Wire Line
+	3800 2650 3900 2650
+Connection ~ 3900 2650
+Connection ~ 5850 2750
+Wire Wire Line
+	4850 2050 5000 2050
+Wire Wire Line
+	5000 2050 5000 1650
+Wire Wire Line
+	5000 1650 4950 1650
+Wire Wire Line
+	4950 1550 4950 1750
+Wire Wire Line
+	4900 1550 4950 1550
+Connection ~ 4950 1650
+$Comp
+L SKY130mode scmode1
+U 1 1 684AFD6B
+P 7350 2150
+F 0 "scmode1" H 7350 2300 98  0000 C CNB
+F 1 "SKY130mode" H 7350 2050 118 0000 C CNB
+F 2 "" H 7350 2300 60  0001 C CNN
+F 3 "" H 7350 2300 60  0001 C CNN
+	1    7350 2150
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_2.cir b/library/SubcircuitLibrary/SN54L99/NAND_2.cir
new file mode 100644
index 000000000..f3da72301
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_2.cir
@@ -0,0 +1,16 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2/NAND_2.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sun Jul  6 17:51:58 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__pfet_01v8		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC1-Pad3_ Net-_SC3-Pad2_ Net-_SC4-Pad3_ Net-_SC4-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC4-Pad3_ Net-_SC2-Pad3_ Net-_SC1-Pad1_ Net-_SC3-Pad2_ PORT		
+scmode1  SKY130mode		
+SC3  Net-_SC1-Pad1_ Net-_SC3-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__pfet_01v8		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_2.cir.out b/library/SubcircuitLibrary/SN54L99/NAND_2.cir.out
new file mode 100644
index 000000000..15401b956
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_2.cir.out
@@ -0,0 +1,18 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_2/nand_2.cir
+
+
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad3_ net-_sc3-pad2_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc4-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ net-_sc3-pad2_ port
+* s c m o d e
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_2.pro b/library/SubcircuitLibrary/SN54L99/NAND_2.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_2.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_2.sch b/library/SubcircuitLibrary/SN54L99/NAND_2.sch
new file mode 100644
index 000000000..ebef1d4c6
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_2.sch
@@ -0,0 +1,222 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:NAND_2-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 684AF0E9
+P 4200 2050
+F 0 "SC2" H 4250 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4500 2137 50  0000 R CNN
+F 2 "" H 4200 550 50  0001 C CNN
+F 3 "" H 4200 2050 50  0001 C CNN
+	1    4200 2050
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF1CF
+P 4450 2850
+F 0 "SC1" H 4500 3150 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4750 2937 50  0000 R CNN
+F 2 "" H 4450 1350 50  0001 C CNN
+F 3 "" H 4450 2850 50  0001 C CNN
+	1    4450 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 684AF20C
+P 4850 3550
+F 0 "SC4" H 4900 3850 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5150 3637 50  0000 R CNN
+F 2 "" H 4850 2050 50  0001 C CNN
+F 3 "" H 4850 3550 50  0001 C CNN
+	1    4850 3550
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF271
+P 4350 1550
+F 0 "U1" H 4400 1650 30  0000 C CNN
+F 1 "PORT" H 4350 1550 30  0000 C CNN
+F 2 "" H 4350 1550 60  0000 C CNN
+F 3 "" H 4350 1550 60  0000 C CNN
+	3    4350 1550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF336
+P 3550 2650
+F 0 "U1" H 3600 2750 30  0000 C CNN
+F 1 "PORT" H 3550 2650 30  0000 C CNN
+F 2 "" H 3550 2650 60  0000 C CNN
+F 3 "" H 3550 2650 60  0000 C CNN
+	1    3550 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AF413
+P 5750 2450
+F 0 "U1" H 5800 2550 30  0000 C CNN
+F 1 "PORT" H 5750 2450 30  0000 C CNN
+F 2 "" H 5750 2450 60  0000 C CNN
+F 3 "" H 5750 2450 60  0000 C CNN
+	4    5750 2450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF82C
+P 5750 3300
+F 0 "U1" H 5800 3400 30  0000 C CNN
+F 1 "PORT" H 5750 3300 30  0000 C CNN
+F 2 "" H 5750 3300 60  0000 C CNN
+F 3 "" H 5750 3300 60  0000 C CNN
+	5    5750 3300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF895
+P 4400 4000
+F 0 "U1" H 4450 4100 30  0000 C CNN
+F 1 "PORT" H 4400 4000 30  0000 C CNN
+F 2 "" H 4400 4000 60  0000 C CNN
+F 3 "" H 4400 4000 60  0000 C CNN
+	2    4400 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684AFD6B
+P 7350 2150
+F 0 "scmode1" H 7350 2300 98  0000 C CNB
+F 1 "SKY130mode" H 7350 2050 118 0000 C CNB
+F 2 "" H 7350 2300 60  0001 C CNN
+F 3 "" H 7350 2300 60  0001 C CNN
+	1    7350 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684CF41D
+P 5000 2050
+F 0 "SC3" H 5050 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5300 2137 50  0000 R CNN
+F 2 "" H 5000 550 50  0001 C CNN
+F 3 "" H 5000 2050 50  0001 C CNN
+	1    5000 2050
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4400 1750 4800 1750
+Wire Wire Line
+	4600 1550 4600 1750
+Connection ~ 4600 1750
+Wire Wire Line
+	4300 2050 4450 2050
+Wire Wire Line
+	4450 2050 4450 1750
+Connection ~ 4450 1750
+Wire Wire Line
+	4900 2050 4750 2050
+Wire Wire Line
+	4750 2050 4750 1750
+Connection ~ 4750 1750
+Wire Wire Line
+	4400 2350 4800 2350
+Wire Wire Line
+	4650 2550 4650 2350
+Connection ~ 4650 2350
+Wire Wire Line
+	5500 2450 4650 2450
+Connection ~ 4650 2450
+Wire Wire Line
+	3900 2050 3900 2850
+Wire Wire Line
+	3900 2850 4150 2850
+Wire Wire Line
+	3800 2650 3900 2650
+Connection ~ 3900 2650
+Wire Wire Line
+	5300 2050 5300 3550
+Wire Wire Line
+	5300 3550 5150 3550
+Wire Wire Line
+	5500 3300 5300 3300
+Connection ~ 5300 3300
+Wire Wire Line
+	4550 2850 4700 2850
+Wire Wire Line
+	4700 2850 4700 3200
+Wire Wire Line
+	4700 3200 4650 3200
+Wire Wire Line
+	4650 3150 4650 3250
+Connection ~ 4650 3200
+Wire Wire Line
+	4650 3850 4650 4000
+Wire Wire Line
+	4750 3550 4600 3550
+Wire Wire Line
+	4600 3550 4600 3900
+Wire Wire Line
+	4600 3900 4650 3900
+Connection ~ 4650 3900
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_2.sub b/library/SubcircuitLibrary/SN54L99/NAND_2.sub
new file mode 100644
index 000000000..aa6beac0d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_2.sub
@@ -0,0 +1,12 @@
+* Subcircuit NAND_2
+.subckt NAND_2 net-_sc1-pad2_ net-_sc4-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ net-_sc3-pad2_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_2/nand_2.cir
+
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad3_ net-_sc3-pad2_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+* Control Statements
+
+.ends NAND_2
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_2_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/NAND_2_Previous_Values.xml
new file mode 100644
index 000000000..066d43a60
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_2_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc2><field>w=3 l=0.15</field></sc2><sc1><field>w=1 l=0.15</field></sc1><sc4><field>w=1 l=0.15</field></sc4><sc3><field>w=3 l=0.15</field></sc3></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_3-cache.lib b/library/SubcircuitLibrary/SN54L99/NAND_3-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_3-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_3.bak b/library/SubcircuitLibrary/SN54L99/NAND_3.bak
new file mode 100644
index 000000000..d9890c5d1
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_3.bak
@@ -0,0 +1,287 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684AF360
+P 5550 2300
+F 0 "SC3" H 5600 2600 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5850 2387 50  0000 R CNN
+F 2 "" H 5550 800 50  0001 C CNN
+F 3 "" H 5550 2300 50  0001 C CNN
+	1    5550 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 684AF39D
+P 5550 3100
+F 0 "SC4" H 5600 3400 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5850 3187 50  0000 R CNN
+F 2 "" H 5550 1600 50  0001 C CNN
+F 3 "" H 5550 3100 50  0001 C CNN
+	1    5550 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC5
+U 1 1 684AF420
+P 5950 3800
+F 0 "SC5" H 6000 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6250 3887 50  0000 R CNN
+F 2 "" H 5950 2300 50  0001 C CNN
+F 3 "" H 5950 3800 50  0001 C CNN
+	1    5950 3800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF50C
+P 4450 4700
+F 0 "SC1" H 4500 5000 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4750 4787 50  0000 R CNN
+F 2 "" H 4450 3200 50  0001 C CNN
+F 3 "" H 4450 4700 50  0001 C CNN
+	1    4450 4700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684AF577
+P 5500 4700
+F 0 "SC2" H 5550 5000 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5800 4787 50  0000 R CNN
+F 2 "" H 5500 3200 50  0001 C CNN
+F 3 "" H 5500 4700 50  0001 C CNN
+	1    5500 4700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC6
+U 1 1 684AF5EC
+P 6450 4700
+F 0 "SC6" H 6500 5000 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6750 4787 50  0000 R CNN
+F 2 "" H 6450 3200 50  0001 C CNN
+F 3 "" H 6450 4700 50  0001 C CNN
+	1    6450 4700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF63F
+P 3700 4000
+F 0 "U1" H 3750 4100 30  0000 C CNN
+F 1 "PORT" H 3700 4000 30  0000 C CNN
+F 2 "" H 3700 4000 60  0000 C CNN
+F 3 "" H 3700 4000 60  0000 C CNN
+	1    3700 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF6CC
+P 4850 3850
+F 0 "U1" H 4900 3950 30  0000 C CNN
+F 1 "PORT" H 4850 3850 30  0000 C CNN
+F 2 "" H 4850 3850 60  0000 C CNN
+F 3 "" H 4850 3850 60  0000 C CNN
+	2    4850 3850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF829
+P 7050 3800
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+F 3 "" H 7050 3800 60  0000 C CNN
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+$Comp
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+F 1 "PORT" H 7150 4200 30  0000 C CNN
+F 2 "" H 7150 4200 60  0000 C CNN
+F 3 "" H 7150 4200 60  0000 C CNN
+	6    7150 4200
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF9FE
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+F 0 "U1" H 5150 5300 30  0000 C CNN
+F 1 "PORT" H 5100 5200 30  0000 C CNN
+F 2 "" H 5100 5200 60  0000 C CNN
+F 3 "" H 5100 5200 60  0000 C CNN
+	3    5100 5200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AFAE6
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+F 0 "U1" H 5550 1850 30  0000 C CNN
+F 1 "PORT" H 5500 1750 30  0000 C CNN
+F 2 "" H 5500 1750 60  0000 C CNN
+F 3 "" H 5500 1750 60  0000 C CNN
+	4    5500 1750
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 5750 1950
+Wire Wire Line
+	5750 2600 5750 2800
+Wire Wire Line
+	5650 3100 5800 3100
+Wire Wire Line
+	5800 3100 5800 2750
+Wire Wire Line
+	5800 2750 5750 2750
+Connection ~ 5750 2750
+Wire Wire Line
+	5750 3500 5750 3400
+Wire Wire Line
+	5850 3800 5700 3800
+Wire Wire Line
+	5700 3800 5700 3450
+Wire Wire Line
+	5700 3450 5750 3450
+Connection ~ 5750 3450
+Wire Wire Line
+	4650 4400 4650 4300
+Wire Wire Line
+	4650 4300 6250 4300
+Wire Wire Line
+	6250 4300 6250 4400
+Wire Wire Line
+	5700 4400 5700 4300
+Connection ~ 5700 4300
+Wire Wire Line
+	5750 4100 5750 4300
+Connection ~ 5750 4300
+Wire Wire Line
+	4650 5000 4650 5050
+Wire Wire Line
+	4650 5050 6250 5050
+Wire Wire Line
+	6250 5050 6250 5000
+Wire Wire Line
+	5700 5000 5700 5050
+Connection ~ 5700 5050
+Wire Wire Line
+	5350 5200 5350 5050
+Connection ~ 5350 5050
+Wire Wire Line
+	4550 4700 4700 4700
+Wire Wire Line
+	4700 4700 4700 5050
+Connection ~ 4700 5050
+Wire Wire Line
+	5600 4700 5750 4700
+Wire Wire Line
+	5750 4700 5750 5050
+Connection ~ 5750 5050
+Wire Wire Line
+	6350 4700 6200 4700
+Wire Wire Line
+	6200 4700 6200 5050
+Connection ~ 6200 5050
+Wire Wire Line
+	4150 2300 4150 4700
+Wire Wire Line
+	3950 4000 4150 4000
+Connection ~ 4150 4000
+Wire Wire Line
+	5250 2300 4150 2300
+Wire Wire Line
+	5250 3100 5200 3100
+Wire Wire Line
+	5200 3100 5200 4700
+Wire Wire Line
+	6250 3800 6800 3800
+Wire Wire Line
+	6750 3800 6750 4700
+Connection ~ 6750 3800
+Wire Wire Line
+	5100 3850 5200 3850
+Connection ~ 5200 3850
+Wire Wire Line
+	6900 4200 5750 4200
+Connection ~ 5750 4200
+$Comp
+L SKY130mode scmode1
+U 1 1 684B00C1
+P 8250 2900
+F 0 "scmode1" H 8250 3050 98  0000 C CNB
+F 1 "SKY130mode" H 8250 2800 118 0000 C CNB
+F 2 "" H 8250 3050 60  0001 C CNN
+F 3 "" H 8250 3050 60  0001 C CNN
+	1    8250 2900
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_3.cir b/library/SubcircuitLibrary/SN54L99/NAND_3.cir
new file mode 100644
index 000000000..e4f46e26d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_3.cir
@@ -0,0 +1,18 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3/NAND_3.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 14 09:30:02 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC3  Net-_SC2-Pad1_ Net-_SC2-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__pfet_01v8		
+SC4  Net-_SC2-Pad1_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__pfet_01v8		
+SC5  Net-_SC2-Pad1_ Net-_SC5-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__pfet_01v8		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC6  Net-_SC1-Pad3_ Net-_SC5-Pad2_ Net-_SC6-Pad3_ Net-_SC6-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC2-Pad2_ Net-_SC1-Pad2_ Net-_SC6-Pad3_ Net-_SC3-Pad3_ Net-_SC2-Pad1_ Net-_SC5-Pad2_ PORT		
+scmode1  SKY130mode		
+SC2  Net-_SC2-Pad1_ Net-_SC2-Pad2_ Net-_SC1-Pad1_ Net-_SC1-Pad1_ sky130_fd_pr__nfet_01v8		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_3.cir.out b/library/SubcircuitLibrary/SN54L99/NAND_3.cir.out
new file mode 100644
index 000000000..b08a2163a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_3.cir.out
@@ -0,0 +1,21 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_3/nand_3.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc3 net-_sc2-pad1_ net-_sc2-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc4 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc2-pad1_ net-_sc5-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc6 net-_sc1-pad3_ net-_sc5-pad2_ net-_sc6-pad3_ net-_sc6-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc2-pad2_ net-_sc1-pad2_ net-_sc6-pad3_ net-_sc3-pad3_ net-_sc2-pad1_ net-_sc5-pad2_ port
+* s c m o d e
+xsc2 net-_sc2-pad1_ net-_sc2-pad2_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_3.pro b/library/SubcircuitLibrary/SN54L99/NAND_3.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_3.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_3.sch b/library/SubcircuitLibrary/SN54L99/NAND_3.sch
new file mode 100644
index 000000000..eb96f8eac
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_3.sch
@@ -0,0 +1,289 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:NAND_3-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684AF360
+P 4200 2350
+F 0 "SC3" H 4250 2650 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4500 2437 50  0000 R CNN
+F 2 "" H 4200 850 50  0001 C CNN
+F 3 "" H 4200 2350 50  0001 C CNN
+	1    4200 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 684AF39D
+P 5250 2350
+F 0 "SC4" H 5300 2650 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5550 2437 50  0000 R CNN
+F 2 "" H 5250 850 50  0001 C CNN
+F 3 "" H 5250 2350 50  0001 C CNN
+	1    5250 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC5
+U 1 1 684AF420
+P 6100 2350
+F 0 "SC5" H 6150 2650 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6400 2437 50  0000 R CNN
+F 2 "" H 6100 850 50  0001 C CNN
+F 3 "" H 6100 2350 50  0001 C CNN
+	1    6100 2350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF50C
+P 5250 4000
+F 0 "SC1" H 5300 4300 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5550 4087 50  0000 R CNN
+F 2 "" H 5250 2500 50  0001 C CNN
+F 3 "" H 5250 4000 50  0001 C CNN
+	1    5250 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC6
+U 1 1 684AF5EC
+P 5650 4700
+F 0 "SC6" H 5700 5000 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5950 4787 50  0000 R CNN
+F 2 "" H 5650 3200 50  0001 C CNN
+F 3 "" H 5650 4700 50  0001 C CNN
+	1    5650 4700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF63F
+P 3450 2350
+F 0 "U1" H 3500 2450 30  0000 C CNN
+F 1 "PORT" H 3450 2350 30  0000 C CNN
+F 2 "" H 3450 2350 60  0000 C CNN
+F 3 "" H 3450 2350 60  0000 C CNN
+	1    3450 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF6CC
+P 4500 4000
+F 0 "U1" H 4550 4100 30  0000 C CNN
+F 1 "PORT" H 4500 4000 30  0000 C CNN
+F 2 "" H 4500 4000 60  0000 C CNN
+F 3 "" H 4500 4000 60  0000 C CNN
+	2    4500 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF829
+P 6300 2800
+F 0 "U1" H 6350 2900 30  0000 C CNN
+F 1 "PORT" H 6300 2800 30  0000 C CNN
+F 2 "" H 6300 2800 60  0000 C CNN
+F 3 "" H 6300 2800 60  0000 C CNN
+	5    6300 2800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 684AF94D
+P 6850 2350
+F 0 "U1" H 6900 2450 30  0000 C CNN
+F 1 "PORT" H 6850 2350 30  0000 C CNN
+F 2 "" H 6850 2350 60  0000 C CNN
+F 3 "" H 6850 2350 60  0000 C CNN
+	6    6850 2350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF9FE
+P 5100 5200
+F 0 "U1" H 5150 5300 30  0000 C CNN
+F 1 "PORT" H 5100 5200 30  0000 C CNN
+F 2 "" H 5100 5200 60  0000 C CNN
+F 3 "" H 5100 5200 60  0000 C CNN
+	3    5100 5200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AFAE6
+P 5500 1750
+F 0 "U1" H 5550 1850 30  0000 C CNN
+F 1 "PORT" H 5500 1750 30  0000 C CNN
+F 2 "" H 5500 1750 60  0000 C CNN
+F 3 "" H 5500 1750 60  0000 C CNN
+	4    5500 1750
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684B00C1
+P 8250 2900
+F 0 "scmode1" H 8250 3050 98  0000 C CNB
+F 1 "SKY130mode" H 8250 2800 118 0000 C CNB
+F 2 "" H 8250 3050 60  0001 C CNN
+F 3 "" H 8250 3050 60  0001 C CNN
+	1    8250 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684AF577
+P 5250 3250
+F 0 "SC2" H 5300 3550 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5550 3337 50  0000 R CNN
+F 2 "" H 5250 1750 50  0001 C CNN
+F 3 "" H 5250 3250 50  0001 C CNN
+	1    5250 3250
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4400 2050 4400 2000
+Wire Wire Line
+	4400 2000 5900 2000
+Wire Wire Line
+	5900 2000 5900 2050
+Wire Wire Line
+	5450 2050 5450 2000
+Connection ~ 5450 2000
+Wire Wire Line
+	5750 1750 5750 2000
+Connection ~ 5750 2000
+Wire Wire Line
+	4300 2350 4450 2350
+Wire Wire Line
+	4450 2350 4450 2000
+Connection ~ 4450 2000
+Wire Wire Line
+	5350 2350 5500 2350
+Wire Wire Line
+	5500 2350 5500 2000
+Connection ~ 5500 2000
+Wire Wire Line
+	6000 2350 5850 2350
+Wire Wire Line
+	5850 2350 5850 2000
+Connection ~ 5850 2000
+Wire Wire Line
+	4400 2650 4400 2700
+Wire Wire Line
+	4400 2700 5900 2700
+Wire Wire Line
+	5900 2700 5900 2650
+Wire Wire Line
+	5450 2650 5450 2950
+Connection ~ 5450 2700
+Wire Wire Line
+	6050 2800 5450 2800
+Connection ~ 5450 2800
+Wire Wire Line
+	3700 2350 3900 2350
+Wire Wire Line
+	3850 2350 3850 3250
+Wire Wire Line
+	3850 3250 4950 3250
+Wire Wire Line
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+Wire Wire Line
+	4800 2350 4800 4000
+Wire Wire Line
+	4750 4000 4950 4000
+Wire Wire Line
+	5350 3250 5500 3250
+Wire Wire Line
+	5500 3250 5500 3600
+Wire Wire Line
+	5500 3600 5450 3600
+Wire Wire Line
+	5450 3550 5450 3700
+Connection ~ 5450 3600
+Wire Wire Line
+	6400 2350 6600 2350
+Wire Wire Line
+	6450 2350 6450 4700
+Wire Wire Line
+	6450 4700 5950 4700
+Connection ~ 6450 2350
+Wire Wire Line
+	5350 4000 5500 4000
+Wire Wire Line
+	5500 4000 5500 4350
+Wire Wire Line
+	5500 4350 5450 4350
+Wire Wire Line
+	5450 4300 5450 4400
+Connection ~ 5450 4350
+Connection ~ 4800 4000
+Wire Wire Line
+	5450 5000 5450 5200
+Wire Wire Line
+	5450 5200 5350 5200
+Wire Wire Line
+	5550 4700 5400 4700
+Wire Wire Line
+	5400 4700 5400 5050
+Wire Wire Line
+	5400 5050 5450 5050
+Connection ~ 5450 5050
+Connection ~ 3850 2350
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_3.sub b/library/SubcircuitLibrary/SN54L99/NAND_3.sub
new file mode 100644
index 000000000..3b4f4b3ff
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_3.sub
@@ -0,0 +1,15 @@
+* Subcircuit NAND_3
+.subckt NAND_3 net-_sc2-pad2_ net-_sc1-pad2_ net-_sc6-pad3_ net-_sc3-pad3_ net-_sc2-pad1_ net-_sc5-pad2_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_3/nand_3.cir
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc3 net-_sc2-pad1_ net-_sc2-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc4 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc2-pad1_ net-_sc5-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc6 net-_sc1-pad3_ net-_sc5-pad2_ net-_sc6-pad3_ net-_sc6-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+xsc2 net-_sc2-pad1_ net-_sc2-pad2_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* Control Statements
+
+.ends NAND_3
diff --git a/library/SubcircuitLibrary/SN54L99/NAND_3_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/NAND_3_Previous_Values.xml
new file mode 100644
index 000000000..c0934485a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NAND_3_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc3><field>w=3 l=0.15</field></sc3><sc4><field>w=3 l=0.15</field></sc4><sc5><field>w=3 l=0.15</field></sc5><sc1><field>w=1 l=0.15</field></sc1><sc6><field>w=1 l=0.15</field></sc6><sc2><field>w=1 l=0.15</field></sc2></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_2-cache.lib b/library/SubcircuitLibrary/SN54L99/NOR_2-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_2-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_2.cir b/library/SubcircuitLibrary/SN54L99/NOR_2.cir
new file mode 100644
index 000000000..976cd2f8e
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_2.cir
@@ -0,0 +1,16 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NOR_2/NOR_2.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Mon Jul  7 11:47:22 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC2  Net-_SC2-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__pfet_01v8		
+SC3  Net-_SC1-Pad1_ Net-_SC3-Pad2_ Net-_SC2-Pad1_ Net-_SC2-Pad1_ sky130_fd_pr__pfet_01v8		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC1-Pad1_ Net-_SC3-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC3-Pad2_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_2.cir.out b/library/SubcircuitLibrary/SN54L99/NOR_2.cir.out
new file mode 100644
index 000000000..5cf58fd73
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_2.cir.out
@@ -0,0 +1,24 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nor_2/nor_2.cir
+
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+xsc2 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad1_ net-_sc2-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc3-pad2_ net-_sc1-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_2.pro b/library/SubcircuitLibrary/SN54L99/NOR_2.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_2.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_2.sch b/library/SubcircuitLibrary/SN54L99/NOR_2.sch
new file mode 100644
index 000000000..86f7c4bc6
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_2.sch
@@ -0,0 +1,219 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 684CE7B8
+P 4750 2600
+F 0 "SC2" H 4800 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5050 2687 50  0000 R CNN
+F 2 "" H 4750 1100 50  0001 C CNN
+F 3 "" H 4750 2600 50  0001 C CNN
+	1    4750 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684CE82E
+P 5150 3400
+F 0 "SC3" H 5200 3700 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5450 3487 50  0000 R CNN
+F 2 "" H 5150 1900 50  0001 C CNN
+F 3 "" H 5150 3400 50  0001 C CNN
+	1    5150 3400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684CE88F
+P 4050 4450
+F 0 "SC1" H 4100 4750 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4350 4537 50  0000 R CNN
+F 2 "" H 4050 2950 50  0001 C CNN
+F 3 "" H 4050 4450 50  0001 C CNN
+	1    4050 4450
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 684CE8CA
+P 5650 4450
+F 0 "SC4" H 5700 4750 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5950 4537 50  0000 R CNN
+F 2 "" H 5650 2950 50  0001 C CNN
+F 3 "" H 5650 4450 50  0001 C CNN
+	1    5650 4450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684CE919
+P 3100 3450
+F 0 "U1" H 3150 3550 30  0000 C CNN
+F 1 "PORT" H 3100 3450 30  0000 C CNN
+F 2 "" H 3100 3450 60  0000 C CNN
+F 3 "" H 3100 3450 60  0000 C CNN
+	1    3100 3450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684CE990
+P 6350 3400
+F 0 "U1" H 6400 3500 30  0000 C CNN
+F 1 "PORT" H 6350 3400 30  0000 C CNN
+F 2 "" H 6350 3400 60  0000 C CNN
+F 3 "" H 6350 3400 60  0000 C CNN
+	4    6350 3400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684CEA11
+P 6450 3900
+F 0 "U1" H 6500 4000 30  0000 C CNN
+F 1 "PORT" H 6450 3900 30  0000 C CNN
+F 2 "" H 6450 3900 60  0000 C CNN
+F 3 "" H 6450 3900 60  0000 C CNN
+	5    6450 3900
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684CEA84
+P 4700 2150
+F 0 "U1" H 4750 2250 30  0000 C CNN
+F 1 "PORT" H 4700 2150 30  0000 C CNN
+F 2 "" H 4700 2150 60  0000 C CNN
+F 3 "" H 4700 2150 60  0000 C CNN
+	3    4700 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684CEB11
+P 4650 5100
+F 0 "U1" H 4700 5200 30  0000 C CNN
+F 1 "PORT" H 4650 5100 30  0000 C CNN
+F 2 "" H 4650 5100 60  0000 C CNN
+F 3 "" H 4650 5100 60  0000 C CNN
+	2    4650 5100
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684CEB6E
+P 8300 2900
+F 0 "scmode1" H 8300 3050 98  0000 C CNB
+F 1 "SKY130mode" H 8300 2800 118 0000 C CNB
+F 2 "" H 8300 3050 60  0001 C CNN
+F 3 "" H 8300 3050 60  0001 C CNN
+	1    8300 2900
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4250 4150 5450 4150
+Wire Wire Line
+	4950 3700 4950 4150
+Connection ~ 4950 4150
+Wire Wire Line
+	6200 3900 4950 3900
+Connection ~ 4950 3900
+Wire Wire Line
+	4250 4750 5450 4750
+Wire Wire Line
+	5550 4450 5400 4450
+Wire Wire Line
+	5400 4450 5400 4750
+Connection ~ 5400 4750
+Wire Wire Line
+	4150 4450 4300 4450
+Wire Wire Line
+	4300 4450 4300 4750
+Connection ~ 4300 4750
+Wire Wire Line
+	4900 5100 4900 4750
+Connection ~ 4900 4750
+Wire Wire Line
+	5450 3400 6100 3400
+Wire Wire Line
+	5950 3400 5950 4450
+Connection ~ 5950 3400
+Wire Wire Line
+	4450 2600 3750 2600
+Wire Wire Line
+	3750 2600 3750 4450
+Wire Wire Line
+	3350 3450 3750 3450
+Connection ~ 3750 3450
+Wire Wire Line
+	4950 2150 4950 2300
+Wire Wire Line
+	4850 2600 5000 2600
+Wire Wire Line
+	5000 2600 5000 2250
+Wire Wire Line
+	5000 2250 4950 2250
+Connection ~ 4950 2250
+Wire Wire Line
+	4950 2900 4950 3100
+Wire Wire Line
+	5050 3400 4900 3400
+Wire Wire Line
+	4900 3400 4900 3050
+Wire Wire Line
+	4900 3050 4950 3050
+Connection ~ 4950 3050
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_2.sub b/library/SubcircuitLibrary/SN54L99/NOR_2.sub
new file mode 100644
index 000000000..f5a7ff023
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_2.sub
@@ -0,0 +1,18 @@
+* Subcircuit NOR_2
+.subckt NOR_2 net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc3-pad2_ net-_sc1-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nor_2/nor_2.cir
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+xsc2 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad1_ net-_sc2-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends NOR_2
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_2_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/NOR_2_Previous_Values.xml
new file mode 100644
index 000000000..62dc0d0a2
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_2_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc2><field>w=3 l=0.15</field></sc2><sc3><field>w=3 l=0.15</field></sc3><sc1><field>w=1 l=0.15</field></sc1><sc4><field>w=1 l=0.15</field></sc4></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_3-cache.lib b/library/SubcircuitLibrary/SN54L99/NOR_3-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_3-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_3.cir b/library/SubcircuitLibrary/SN54L99/NOR_3.cir
new file mode 100644
index 000000000..0738ff996
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_3.cir
@@ -0,0 +1,18 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NOR_3/NOR_3.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Thu Jul 10 16:42:16 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC3  Net-_SC3-Pad1_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__pfet_01v8		
+SC4  Net-_SC4-Pad1_ Net-_SC2-Pad2_ Net-_SC3-Pad1_ Net-_SC3-Pad1_ sky130_fd_pr__pfet_01v8		
+SC5  Net-_SC1-Pad1_ Net-_SC5-Pad2_ Net-_SC4-Pad1_ Net-_SC4-Pad1_ sky130_fd_pr__pfet_01v8		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC2-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC6  Net-_SC1-Pad1_ Net-_SC5-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+scmode1  SKY130mode		
+U1  Net-_SC1-Pad2_ Net-_SC2-Pad2_ Net-_SC1-Pad1_ Net-_SC1-Pad3_ Net-_SC3-Pad3_ Net-_SC5-Pad2_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_3.cir.out b/library/SubcircuitLibrary/SN54L99/NOR_3.cir.out
new file mode 100644
index 000000000..2b5210432
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_3.cir.out
@@ -0,0 +1,20 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nor_3/nor_3.cir
+
+
+xsc3 net-_sc3-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc4 net-_sc4-pad1_ net-_sc2-pad2_ net-_sc3-pad1_ net-_sc3-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc1-pad1_ net-_sc5-pad2_ net-_sc4-pad1_ net-_sc4-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc6 net-_sc1-pad1_ net-_sc5-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* u1  net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc3-pad3_ net-_sc5-pad2_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_3.pro b/library/SubcircuitLibrary/SN54L99/NOR_3.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_3.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_3.sch b/library/SubcircuitLibrary/SN54L99/NOR_3.sch
new file mode 100644
index 000000000..19a2ccb81
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_3.sch
@@ -0,0 +1,278 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 686F9EE9
+P 5700 1900
+F 0 "SC3" H 5750 2200 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6000 1987 50  0000 R CNN
+F 2 "" H 5700 400 50  0001 C CNN
+F 3 "" H 5700 1900 50  0001 C CNN
+	1    5700 1900
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 686F9F00
+P 5700 2600
+F 0 "SC4" H 5750 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6000 2687 50  0000 R CNN
+F 2 "" H 5700 1100 50  0001 C CNN
+F 3 "" H 5700 2600 50  0001 C CNN
+	1    5700 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC5
+U 1 1 686F9F3F
+P 6100 3300
+F 0 "SC5" H 6150 3600 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6400 3387 50  0000 R CNN
+F 2 "" H 6100 1800 50  0001 C CNN
+F 3 "" H 6100 3300 50  0001 C CNN
+	1    6100 3300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 686F9FDA
+P 4700 4250
+F 0 "SC1" H 4750 4550 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5000 4337 50  0000 R CNN
+F 2 "" H 4700 2750 50  0001 C CNN
+F 3 "" H 4700 4250 50  0001 C CNN
+	1    4700 4250
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 686FA080
+P 5650 4250
+F 0 "SC2" H 5700 4550 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5950 4337 50  0000 R CNN
+F 2 "" H 5650 2750 50  0001 C CNN
+F 3 "" H 5650 4250 50  0001 C CNN
+	1    5650 4250
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC6
+U 1 1 686FA290
+P 6650 4250
+F 0 "SC6" H 6700 4550 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6950 4337 50  0000 R CNN
+F 2 "" H 6650 2750 50  0001 C CNN
+F 3 "" H 6650 4250 50  0001 C CNN
+	1    6650 4250
+	-1   0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 686FA309
+P 10350 6000
+F 0 "scmode1" H 10350 6150 98  0000 C CNB
+F 1 "SKY130mode" H 10350 5900 118 0000 C CNB
+F 2 "" H 10350 6150 60  0001 C CNN
+F 3 "" H 10350 6150 60  0001 C CNN
+	1    10350 6000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4900 3950 4900 3900
+Wire Wire Line
+	4900 3900 6450 3900
+Wire Wire Line
+	6450 3900 6450 3950
+Wire Wire Line
+	5850 3950 5850 3900
+Connection ~ 5850 3900
+Wire Wire Line
+	5900 3600 5900 3900
+Connection ~ 5900 3900
+Wire Wire Line
+	4900 4550 4900 4600
+Wire Wire Line
+	4900 4600 6450 4600
+Wire Wire Line
+	6450 4600 6450 4550
+Wire Wire Line
+	5850 4550 5850 4600
+Connection ~ 5850 4600
+Wire Wire Line
+	4800 4250 4950 4250
+Wire Wire Line
+	4950 4250 4950 4600
+Connection ~ 4950 4600
+Wire Wire Line
+	5750 4250 5900 4250
+Wire Wire Line
+	5900 4250 5900 4600
+Connection ~ 5900 4600
+Wire Wire Line
+	6550 4250 6400 4250
+Wire Wire Line
+	6400 4250 6400 4600
+Connection ~ 6400 4600
+Wire Wire Line
+	6000 3300 5850 3300
+Wire Wire Line
+	5850 3300 5850 2950
+Wire Wire Line
+	5850 2950 5900 2950
+Wire Wire Line
+	5900 2900 5900 3000
+Connection ~ 5900 2950
+Wire Wire Line
+	5800 2600 5950 2600
+Wire Wire Line
+	5950 2600 5950 2250
+Wire Wire Line
+	5950 2250 5900 2250
+Wire Wire Line
+	5900 2200 5900 2300
+Connection ~ 5900 2250
+Wire Wire Line
+	5800 1900 5950 1900
+Wire Wire Line
+	5950 1900 5950 1550
+Wire Wire Line
+	5950 1550 5900 1550
+Wire Wire Line
+	5900 1550 5900 1600
+Wire Wire Line
+	5400 1900 4400 1900
+Wire Wire Line
+	4400 1900 4400 4250
+Wire Wire Line
+	5400 2600 5350 2600
+Wire Wire Line
+	5350 2600 5350 4250
+Wire Wire Line
+	6400 3300 6950 3300
+Wire Wire Line
+	6950 3300 6950 4250
+$Comp
+L PORT U1
+U 5 1 686FA7F6
+P 5950 1300
+F 0 "U1" H 6000 1400 30  0000 C CNN
+F 1 "PORT" H 5950 1300 30  0000 C CNN
+F 2 "" H 5950 1300 60  0000 C CNN
+F 3 "" H 5950 1300 60  0000 C CNN
+	5    5950 1300
+	0    1    1    0   
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686FA8CF
+P 4150 1900
+F 0 "U1" H 4200 2000 30  0000 C CNN
+F 1 "PORT" H 4150 1900 30  0000 C CNN
+F 2 "" H 4150 1900 60  0000 C CNN
+F 3 "" H 4150 1900 60  0000 C CNN
+	1    4150 1900
+	1    0    0    -1  
+$EndComp
+Connection ~ 4400 1900
+Connection ~ 5950 1550
+Connection ~ 5350 2600
+Connection ~ 6950 3300
+Connection ~ 5900 3700
+$Comp
+L PORT U1
+U 2 1 686FACDE
+P 5100 2600
+F 0 "U1" H 5150 2700 30  0000 C CNN
+F 1 "PORT" H 5100 2600 30  0000 C CNN
+F 2 "" H 5100 2600 60  0000 C CNN
+F 3 "" H 5100 2600 60  0000 C CNN
+	2    5100 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686FAD41
+P 5650 3700
+F 0 "U1" H 5700 3800 30  0000 C CNN
+F 1 "PORT" H 5650 3700 30  0000 C CNN
+F 2 "" H 5650 3700 60  0000 C CNN
+F 3 "" H 5650 3700 60  0000 C CNN
+	3    5650 3700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686FAD8E
+P 7200 3300
+F 0 "U1" H 7250 3400 30  0000 C CNN
+F 1 "PORT" H 7200 3300 30  0000 C CNN
+F 2 "" H 7200 3300 60  0000 C CNN
+F 3 "" H 7200 3300 60  0000 C CNN
+	6    7200 3300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686FAE65
+P 5900 4850
+F 0 "U1" H 5950 4950 30  0000 C CNN
+F 1 "PORT" H 5900 4850 30  0000 C CNN
+F 2 "" H 5900 4850 60  0000 C CNN
+F 3 "" H 5900 4850 60  0000 C CNN
+	4    5900 4850
+	0    1    -1   0   
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_3.sub b/library/SubcircuitLibrary/SN54L99/NOR_3.sub
new file mode 100644
index 000000000..11cd9a15b
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_3.sub
@@ -0,0 +1,14 @@
+* Subcircuit NOR_3
+.subckt NOR_3 net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc3-pad3_ net-_sc5-pad2_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nor_3/nor_3.cir
+
+xsc3 net-_sc3-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc4 net-_sc4-pad1_ net-_sc2-pad2_ net-_sc3-pad1_ net-_sc3-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc1-pad1_ net-_sc5-pad2_ net-_sc4-pad1_ net-_sc4-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc6 net-_sc1-pad1_ net-_sc5-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends NOR_3
diff --git a/library/SubcircuitLibrary/SN54L99/NOR_3_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/NOR_3_Previous_Values.xml
new file mode 100644
index 000000000..4c32827f4
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/NOR_3_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc3><field>w=3 l=0.15</field></sc3><sc4><field>w=3 l=0.15</field></sc4><sc5><field>w=3 l=0.15</field></sc5><sc1><field>w=1 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2><sc6><field>w=1 l=0.15</field></sc6></devicemodel><subcircuit /></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/SN54L99-cache.lib b/library/SubcircuitLibrary/SN54L99/SN54L99-cache.lib
new file mode 100644
index 000000000..69e245823
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SN54L99-cache.lib
@@ -0,0 +1,153 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# 2_in_and
+#
+DEF 2_in_and X 0 40 Y Y 1 F N
+F0 "X" 50 0 60 H V C CNN
+F1 "2_in_and" 0 -250 60 H V C CNN
+F2 "" 750 -150 60 H I C CNN
+F3 "" 750 -150 60 H I C CNN
+DRAW
+A 50 0 206 760 -760 0 1 0 N 100 200 100 -200
+P 2 0 1 0 -200 200 100 200 N
+P 3 0 1 0 -200 200 -200 -200 100 -200 N
+X Vdd 1 -400 150 200 R 50 50 1 1 I
+X in1 2 -400 50 200 R 50 50 1 1 I
+X in2 3 -400 -50 200 R 50 50 1 1 I
+X Gnd 4 -400 -150 200 R 50 50 1 1 I
+X out 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 300 0 50 0 1 0 N
+P 2 0 1 0 -200 150 250 0 N
+P 3 0 1 0 -200 150 -200 -150 250 0 N
+X in 1 -400 0 200 R 50 50 1 1 I
+X Vdd 2 -400 100 200 R 50 50 1 1 I
+X Gnd 3 -400 -100 200 R 50 50 1 1 I
+X Out 4 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# DS_blk
+#
+DEF DS_blk X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "DS_blk" 0 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 200 250 -200 0 1 0 N
+X in1 1 -450 150 200 R 50 50 1 1 I
+X ws1 2 -450 50 200 R 50 50 1 1 I
+X ws2 3 -450 -50 200 R 50 50 1 1 I
+X in2 4 -450 -150 200 R 50 50 1 1 I
+X Clk 5 450 50 200 L 50 50 1 1 I
+X Vdd 6 450 150 200 L 50 50 1 1 I
+X Gnd 7 450 -150 200 L 50 50 1 1 I
+X Out 8 450 -50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# SerialParallel_blk
+#
+DEF SerialParallel_blk X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "SerialParallel_blk" 0 -300 60 H V C CNN
+F2 "" -850 300 60 H I C CNN
+F3 "" -850 300 60 H I C CNN
+DRAW
+S -350 250 300 -250 0 1 0 N
+X J 1 500 150 200 L 50 50 1 1 I
+X K 2 500 50 200 L 50 50 1 1 I
+X clk 3 -550 0 200 R 50 50 1 1 I
+X A 4 -550 100 200 R 50 50 1 1 I
+X M 5 -550 -100 200 R 50 50 1 1 I
+X M_bar 6 -550 -200 200 R 50 50 1 1 I
+X Vdd 7 -550 200 200 R 50 50 1 1 I
+X Gnd 8 500 -200 200 L 50 50 1 1 I
+X Qa 9 500 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# or_2
+#
+DEF or_2 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "or_2" 0 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A -400 0 206 760 -760 0 1 0 N -350 200 -350 -200
+A -180 -290 519 1091 340 0 1 0 N -350 200 250 0
+A -175 275 506 -1102 -329 0 1 0 N -350 -200 250 0
+X in1 1 -400 50 200 R 50 50 1 1 I
+X in2 2 -400 -50 200 R 50 50 1 1 I
+X Vdd 3 -450 150 200 R 50 50 1 1 I
+X Gnd 4 -450 -150 200 R 50 50 1 1 I
+X out 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/SN54L99.bak b/library/SubcircuitLibrary/SN54L99/SN54L99.bak
new file mode 100644
index 000000000..1e73214eb
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SN54L99.bak
@@ -0,0 +1,518 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SN54L99-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode1
+U 1 1 686FB10F
+P 10500 6100
+F 0 "scmode1" H 10500 6250 98  0000 C CNB
+F 1 "SKY130mode" H 10500 6000 118 0000 C CNB
+F 2 "" H 10500 6250 60  0001 C CNN
+F 3 "" H 10500 6250 60  0001 C CNN
+	1    10500 6100
+	1    0    0    -1  
+$EndComp
+$Comp
+L SerialParallel_blk X4
+U 1 1 686FB703
+P 4200 4050
+F 0 "X4" H 4200 4050 60  0000 C CNN
+F 1 "SerialParallel_blk" H 4200 3750 60  0000 C CNN
+F 2 "" H 3350 4350 60  0001 C CNN
+F 3 "" H 3350 4350 60  0001 C CNN
+	1    4200 4050
+	1    0    0    -1  
+$EndComp
+$Comp
+L DS_blk X6
+U 1 1 686FB752
+P 5600 4050
+F 0 "X6" H 5600 4050 60  0000 C CNN
+F 1 "DS_blk" H 5600 3800 60  0000 C CNN
+F 2 "" H 5600 4050 60  0001 C CNN
+F 3 "" H 5600 4050 60  0001 C CNN
+	1    5600 4050
+	1    0    0    -1  
+$EndComp
+$Comp
+L DS_blk X7
+U 1 1 686FB79D
+P 6850 4050
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+F 1 "DS_blk" H 6850 3800 60  0000 C CNN
+F 2 "" H 6850 4050 60  0001 C CNN
+F 3 "" H 6850 4050 60  0001 C CNN
+	1    6850 4050
+	1    0    0    -1  
+$EndComp
+$Comp
+L DS_blk X8
+U 1 1 686FB8BA
+P 8250 4050
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+F 1 "DS_blk" H 8250 3800 60  0000 C CNN
+F 2 "" H 8250 4050 60  0001 C CNN
+F 3 "" H 8250 4050 60  0001 C CNN
+	1    8250 4050
+	1    0    0    -1  
+$EndComp
+$Comp
+L 2_in_and X2
+U 1 1 686FB9B6
+P 3900 5800
+F 0 "X2" H 3950 5800 60  0000 C CNN
+F 1 "2_in_and" H 3900 5550 60  0000 C CNN
+F 2 "" H 4650 5650 60  0001 C CNN
+F 3 "" H 4650 5650 60  0001 C CNN
+	1    3900 5800
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 0 "X3" H 3950 6450 60  0000 C CNN
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+F 2 "" H 4650 6300 60  0001 C CNN
+F 3 "" H 4650 6300 60  0001 C CNN
+	1    3900 6450
+	1    0    0    -1  
+$EndComp
+$Comp
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+U 1 1 686FBA1C
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+F 1 "or_2" H 4950 5900 60  0000 C CNN
+F 2 "" H 4950 6150 60  0001 C CNN
+F 3 "" H 4950 6150 60  0001 C CNN
+	1    4950 6150
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X1
+U 1 1 686FBA57
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+F 0 "X1" H 3100 5850 60  0000 C CNN
+F 1 "CMOS_INVTR" H 3150 5650 60  0000 C CNN
+F 2 "" H 3100 5850 60  0001 C CNN
+F 3 "" H 3100 5850 60  0001 C CNN
+	1    3100 5850
+	0    -1   -1   0   
+$EndComp
+Text Label 2500 6400 0    60   ~ 0
+mode
+Text Label 2600 5850 0    60   ~ 0
+RS
+Text Label 2600 6500 0    60   ~ 0
+LS
+Wire Wire Line
+	4350 5800 4350 6100
+Wire Wire Line
+	4350 6100 4550 6100
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+	2400 6400 3500 6400
+Wire Wire Line
+	3100 6400 3100 6250
+Wire Wire Line
+	3100 5300 7650 5300
+Connection ~ 3100 6400
+Wire Wire Line
+	3500 5850 2400 5850
+Wire Wire Line
+	3500 6500 2400 6500
+Wire Wire Line
+	3650 4250 3400 4250
+Connection ~ 3400 5300
+Wire Wire Line
+	3650 4150 2950 4150
+Wire Wire Line
+	2950 4150 2950 6400
+Connection ~ 2950 6400
+Wire Wire Line
+	8700 4000 8850 4000
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 4900 5300
+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 6300 5300
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 2950 5100
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 3500 5500
+Wire Wire Line
+	3500 6300 3300 6300
+Wire Wire Line
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+Connection ~ 3300 5500
+Wire Wire Line
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+Connection ~ 4500 5500
+Wire Wire Line
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+Connection ~ 8700 3750
+Wire Wire Line
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+Connection ~ 7300 3750
+Wire Wire Line
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+Connection ~ 6050 3750
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 6050 4350
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+F 2 "" H 4750 4750 60  0000 C CNN
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diff --git a/library/SubcircuitLibrary/SN54L99/SN54L99.cir b/library/SubcircuitLibrary/SN54L99/SN54L99.cir
new file mode 100644
index 000000000..951b7438d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SN54L99.cir
@@ -0,0 +1,20 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SN54L99/SN54L99.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Thu Jul 10 18:58:06 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+scmode1  SKY130mode		
+X4  Net-_U1-Pad7_ Net-_U1-Pad6_ Net-_X4-Pad3_ Net-_U1-Pad4_ /mode Net-_X1-Pad4_ Net-_U1-Pad13_ Net-_U1-Pad15_ Net-_U1-Pad5_ SerialParallel_blk		
+X6  Net-_U1-Pad5_ Net-_X1-Pad4_ /mode Net-_U1-Pad8_ Net-_X4-Pad3_ Net-_U1-Pad13_ Net-_U1-Pad15_ Net-_U1-Pad9_ DS_blk		
+X7  Net-_U1-Pad9_ Net-_X1-Pad4_ /mode Net-_U1-Pad10_ Net-_X4-Pad3_ Net-_U1-Pad13_ Net-_U1-Pad15_ Net-_U1-Pad11_ DS_blk		
+X8  Net-_U1-Pad11_ Net-_X1-Pad4_ /mode Net-_U1-Pad12_ Net-_X4-Pad3_ Net-_U1-Pad13_ Net-_U1-Pad15_ Net-_U1-Pad14_ DS_blk		
+X2  Net-_U1-Pad13_ Net-_X1-Pad4_ /RS Net-_U1-Pad15_ Net-_X2-Pad5_ 2_in_and		
+X3  Net-_U1-Pad13_ /mode /LS Net-_U1-Pad15_ Net-_X3-Pad5_ 2_in_and		
+X5  Net-_X2-Pad5_ Net-_X3-Pad5_ Net-_U1-Pad13_ Net-_U1-Pad15_ Net-_X4-Pad3_ or_2		
+X1  /mode Net-_U1-Pad13_ Net-_U1-Pad15_ Net-_X1-Pad4_ CMOS_INVTR		
+U1  /RS /mode /LS Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad9_ Net-_U1-Pad10_ Net-_U1-Pad11_ Net-_U1-Pad12_ Net-_U1-Pad13_ Net-_U1-Pad14_ Net-_U1-Pad15_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/SN54L99.cir.out b/library/SubcircuitLibrary/SN54L99/SN54L99.cir.out
new file mode 100644
index 000000000..00a95aafd
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SN54L99.cir.out
@@ -0,0 +1,33 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/sn54l99/sn54l99.cir
+
+.include SerialParallel_blk.sub
+.include or_2.sub
+.include DS_blk.sub
+.include CMOS_INVTR.sub
+.include 2_in_and.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+* s c m o d e
+x4 net-_u1-pad7_ net-_u1-pad6_ net-_x4-pad3_ net-_u1-pad4_ /mode net-_x1-pad4_ net-_u1-pad13_ net-_u1-pad15_ net-_u1-pad5_ SerialParallel_blk
+x6 net-_u1-pad5_ net-_x1-pad4_ /mode net-_u1-pad8_ net-_x4-pad3_ net-_u1-pad13_ net-_u1-pad15_ net-_u1-pad9_ DS_blk
+x7 net-_u1-pad9_ net-_x1-pad4_ /mode net-_u1-pad10_ net-_x4-pad3_ net-_u1-pad13_ net-_u1-pad15_ net-_u1-pad11_ DS_blk
+x8 net-_u1-pad11_ net-_x1-pad4_ /mode net-_u1-pad12_ net-_x4-pad3_ net-_u1-pad13_ net-_u1-pad15_ net-_u1-pad14_ DS_blk
+x2 net-_u1-pad13_ net-_x1-pad4_ /rs net-_u1-pad15_ net-_x2-pad5_ 2_in_and
+x3 net-_u1-pad13_ /mode /ls net-_u1-pad15_ net-_x3-pad5_ 2_in_and
+x5 net-_x2-pad5_ net-_x3-pad5_ net-_u1-pad13_ net-_u1-pad15_ net-_x4-pad3_ or_2
+x1 /mode net-_u1-pad13_ net-_u1-pad15_ net-_x1-pad4_ CMOS_INVTR
+* u1  /rs /mode /ls net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/SN54L99.pro b/library/SubcircuitLibrary/SN54L99/SN54L99.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SN54L99.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/SN54L99.sch b/library/SubcircuitLibrary/SN54L99/SN54L99.sch
new file mode 100644
index 000000000..e116ec524
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SN54L99.sch
@@ -0,0 +1,518 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SN54L99-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
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+P 2000 5050
+F 0 "U1" H 2050 5150 30  0000 C CNN
+F 1 "PORT" H 2000 5050 30  0000 C CNN
+F 2 "" H 2000 5050 60  0000 C CNN
+F 3 "" H 2000 5050 60  0000 C CNN
+	3    2000 5050
+	1    0    0    1   
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/SN54L99.sub b/library/SubcircuitLibrary/SN54L99/SN54L99.sub
new file mode 100644
index 000000000..1fc20d442
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SN54L99.sub
@@ -0,0 +1,27 @@
+* Subcircuit SN54L99
+.subckt SN54L99 /rs /mode /ls net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/sn54l99/sn54l99.cir
+.include SerialParallel_blk.sub
+.include or_2.sub
+.include DS_blk.sub
+.include CMOS_INVTR.sub
+.include 2_in_and.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+* s c m o d e
+x4 net-_u1-pad7_ net-_u1-pad6_ net-_x4-pad3_ net-_u1-pad4_ /mode net-_x1-pad4_ net-_u1-pad13_ net-_u1-pad15_ net-_u1-pad5_ SerialParallel_blk
+x6 net-_u1-pad5_ net-_x1-pad4_ /mode net-_u1-pad8_ net-_x4-pad3_ net-_u1-pad13_ net-_u1-pad15_ net-_u1-pad9_ DS_blk
+x7 net-_u1-pad9_ net-_x1-pad4_ /mode net-_u1-pad10_ net-_x4-pad3_ net-_u1-pad13_ net-_u1-pad15_ net-_u1-pad11_ DS_blk
+x8 net-_u1-pad11_ net-_x1-pad4_ /mode net-_u1-pad12_ net-_x4-pad3_ net-_u1-pad13_ net-_u1-pad15_ net-_u1-pad14_ DS_blk
+x2 net-_u1-pad13_ net-_x1-pad4_ /rs net-_u1-pad15_ net-_x2-pad5_ 2_in_and
+x3 net-_u1-pad13_ /mode /ls net-_u1-pad15_ net-_x3-pad5_ 2_in_and
+x5 net-_x2-pad5_ net-_x3-pad5_ net-_u1-pad13_ net-_u1-pad15_ net-_x4-pad3_ or_2
+x1 /mode net-_u1-pad13_ net-_u1-pad15_ net-_x1-pad4_ CMOS_INVTR
+* Control Statements
+
+.ends SN54L99
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/SN54L99_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/SN54L99_Previous_Values.xml
new file mode 100644
index 000000000..b4c5d9bf1
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SN54L99_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SerialParallel_blk</field></x4><x6><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/DS_blk</field></x6><x7><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/DS_blk</field></x7><x8><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/DS_blk</field></x8><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/2_in_and</field></x2><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/2_in_and</field></x3><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/or_2</field></x5><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x1></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/SRFF-cache.lib b/library/SubcircuitLibrary/SN54L99/SRFF-cache.lib
new file mode 100644
index 000000000..eb753a8d1
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SRFF-cache.lib
@@ -0,0 +1,76 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# NAND_2
+#
+DEF NAND_2 X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "NAND_2" 50 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 100 0 206 760 -760 0 1 0 N 150 200 150 -200
+C 350 0 50 0 1 0 N
+P 2 0 1 0 -200 200 150 200 N
+P 3 0 1 0 -200 200 -200 -200 150 -200 N
+X in1 1 -400 50 200 R 50 50 1 1 I
+X Gnd 2 -400 -150 200 R 50 50 1 1 I
+X Vdd 3 -400 150 200 R 50 50 1 1 I
+X out 4 600 0 200 L 50 50 1 1 O
+X in2 5 -400 -50 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/SRFF-rescue.lib b/library/SubcircuitLibrary/SN54L99/SRFF-rescue.lib
new file mode 100644
index 000000000..eb8af4a82
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SRFF-rescue.lib
@@ -0,0 +1,46 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# NAND_2-RESCUE-SRFF
+#
+DEF NAND_2-RESCUE-SRFF X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "NAND_2-RESCUE-SRFF" 400 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 400 0 255 787 -787 0 1 0 N 450 250 450 -250
+C 700 0 0 0 1 0 N
+C 700 0 50 0 1 0 N
+P 2 0 1 0 -300 250 450 250 N
+P 3 0 1 0 -300 250 -300 -250 450 -250 N
+X inA 1 -500 100 200 R 50 50 1 1 I
+X Gnd 2 0 -450 200 U 50 50 1 1 I
+X Vdd 3 0 450 200 D 50 50 1 1 I
+X Out 4 950 0 200 L 50 50 1 1 O
+X inB 5 -500 -100 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# NAND_3-RESCUE-SRFF
+#
+DEF NAND_3-RESCUE-SRFF X 0 40 Y Y 1 F N
+F0 "X" 150 0 60 H V C CNN
+F1 "NAND_3-RESCUE-SRFF" 450 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 500 0 255 787 -787 0 1 0 N 550 250 550 -250
+C 800 0 50 0 1 0 N
+P 2 0 1 0 -250 250 550 250 N
+P 3 0 1 0 -250 250 -250 -250 550 -250 N
+X inA 1 -450 150 200 R 50 50 1 1 I
+X inB 2 -450 0 200 R 50 50 1 1 I
+X Gnd 3 0 -450 200 U 50 50 1 1 I
+X Vdd 4 0 450 200 D 50 50 1 1 I
+X Out 5 1050 0 200 L 50 50 1 1 O
+X inC 6 -450 -150 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/SRFF.bak b/library/SubcircuitLibrary/SN54L99/SRFF.bak
new file mode 100644
index 000000000..0b97aaa25
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SRFF.bak
@@ -0,0 +1,255 @@
+EESchema Schematic File Version 2
+LIBS:SRFF-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SRFF-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode1
+U 1 1 685C24CA
+P 10050 1950
+F 0 "scmode1" H 10050 2100 98  0000 C CNB
+F 1 "SKY130mode" H 10050 1850 118 0000 C CNB
+F 2 "" H 10050 2100 60  0001 C CNN
+F 3 "" H 10050 2100 60  0001 C CNN
+	1    10050 1950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685C276D
+P 3150 3400
+F 0 "U1" H 3200 3500 30  0000 C CNN
+F 1 "PORT" H 3150 3400 30  0000 C CNN
+F 2 "" H 3150 3400 60  0000 C CNN
+F 3 "" H 3150 3400 60  0000 C CNN
+	2    3150 3400
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685C27A4
+P 3250 4150
+F 0 "U1" H 3300 4250 30  0000 C CNN
+F 1 "PORT" H 3250 4150 30  0000 C CNN
+F 2 "" H 3250 4150 60  0000 C CNN
+F 3 "" H 3250 4150 60  0000 C CNN
+	3    3250 4150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 685C27E3
+P 4600 4650
+F 0 "U1" H 4650 4750 30  0000 C CNN
+F 1 "PORT" H 4600 4650 30  0000 C CNN
+F 2 "" H 4600 4650 60  0000 C CNN
+F 3 "" H 4600 4650 60  0000 C CNN
+	6    4600 4650
+	0    -1   -1   0   
+$EndComp
+$Comp
+L PORT U1
+U 8 1 685C2893
+P 6200 2700
+F 0 "U1" H 6250 2800 30  0000 C CNN
+F 1 "PORT" H 6200 2700 30  0000 C CNN
+F 2 "" H 6200 2700 60  0000 C CNN
+F 3 "" H 6200 2700 60  0000 C CNN
+	8    6200 2700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 685C28F8
+P 6200 4050
+F 0 "U1" H 6250 4150 30  0000 C CNN
+F 1 "PORT" H 6200 4050 30  0000 C CNN
+F 2 "" H 6200 4050 60  0000 C CNN
+F 3 "" H 6200 4050 60  0000 C CNN
+	9    6200 4050
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685C293F
+P 4350 2150
+F 0 "U1" H 4400 2250 30  0000 C CNN
+F 1 "PORT" H 4350 2150 30  0000 C CNN
+F 2 "" H 4350 2150 60  0000 C CNN
+F 3 "" H 4350 2150 60  0000 C CNN
+	4    4350 2150
+	0    1    1    0   
+$EndComp
+$Comp
+L NAND_2 X1
+U 1 1 686FA4A9
+P 3900 2650
+F 0 "X1" H 4000 2650 60  0000 C CNN
+F 1 "NAND_2" H 3950 2400 60  0000 C CNN
+F 2 "" H 3900 2650 60  0001 C CNN
+F 3 "" H 3900 2650 60  0001 C CNN
+	1    3900 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_2 X2
+U 1 1 686FA560
+P 3900 4100
+F 0 "X2" H 4000 4100 60  0000 C CNN
+F 1 "NAND_2" H 3950 3850 60  0000 C CNN
+F 2 "" H 3900 4100 60  0001 C CNN
+F 3 "" H 3900 4100 60  0001 C CNN
+	1    3900 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_2 X4
+U 1 1 686FA5A9
+P 5250 4050
+F 0 "X4" H 5350 4050 60  0000 C CNN
+F 1 "NAND_2" H 5300 3800 60  0000 C CNN
+F 2 "" H 5250 4050 60  0001 C CNN
+F 3 "" H 5250 4050 60  0001 C CNN
+	1    5250 4050
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_2 X3
+U 1 1 686FA7E8
+P 5250 2700
+F 0 "X3" H 5350 2700 60  0000 C CNN
+F 1 "NAND_2" H 5300 2450 60  0000 C CNN
+F 2 "" H 5250 2700 60  0001 C CNN
+F 3 "" H 5250 2700 60  0001 C CNN
+	1    5250 2700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 685C2716
+P 3250 2600
+F 0 "U1" H 3300 2700 30  0000 C CNN
+F 1 "PORT" H 3250 2600 30  0000 C CNN
+F 2 "" H 3250 2600 60  0000 C CNN
+F 3 "" H 3250 2600 60  0000 C CNN
+	1    3250 2600
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4850 4000 4750 4000
+Wire Wire Line
+	4750 4000 4750 3800
+Wire Wire Line
+	4750 3800 5950 3800
+Wire Wire Line
+	5950 3800 5950 2700
+Wire Wire Line
+	5950 2700 5850 2700
+Wire Wire Line
+	4850 2750 4750 2750
+Wire Wire Line
+	4750 2750 4750 3000
+Wire Wire Line
+	4750 3000 5950 3000
+Wire Wire Line
+	5950 3000 5950 4050
+Wire Wire Line
+	5950 4050 5850 4050
+Wire Wire Line
+	4500 2650 4850 2650
+Wire Wire Line
+	4500 4100 4850 4100
+Wire Wire Line
+	3400 2700 3500 2700
+Wire Wire Line
+	3400 2700 3400 4050
+Wire Wire Line
+	3400 4050 3500 4050
+Connection ~ 3400 3400
+Connection ~ 5950 2700
+Connection ~ 5950 4050
+Wire Wire Line
+	3500 2500 3500 2400
+Wire Wire Line
+	3500 2400 4850 2400
+Wire Wire Line
+	4850 2400 4850 2550
+Wire Wire Line
+	3500 3750 3500 3950
+Wire Wire Line
+	3500 3750 4850 3750
+Wire Wire Line
+	4850 3750 4850 3900
+Wire Wire Line
+	4850 2850 4850 2950
+Wire Wire Line
+	4850 2950 3500 2950
+Wire Wire Line
+	3500 2950 3500 2800
+Wire Wire Line
+	3500 4250 3500 4400
+Wire Wire Line
+	3500 4400 4850 4400
+Wire Wire Line
+	4850 4400 4850 4200
+Wire Wire Line
+	4350 2400 4350 3750
+Connection ~ 4350 3750
+Connection ~ 4350 2400
+Wire Wire Line
+	4600 2950 4600 4400
+Connection ~ 4600 4400
+Connection ~ 4600 2950
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/SRFF.cir b/library/SubcircuitLibrary/SN54L99/SRFF.cir
new file mode 100644
index 000000000..9ddfeedb5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SRFF.cir
@@ -0,0 +1,16 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SRFF/SRFF.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Thu Jul 10 17:19:56 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ PORT		
+X1  Net-_U1-Pad1_ Net-_U1-Pad5_ Net-_U1-Pad4_ Net-_X1-Pad4_ Net-_U1-Pad2_ NAND_2		
+X2  Net-_U1-Pad2_ Net-_U1-Pad5_ Net-_U1-Pad4_ Net-_X2-Pad4_ Net-_U1-Pad3_ NAND_2		
+X4  Net-_U1-Pad6_ Net-_U1-Pad5_ Net-_U1-Pad4_ Net-_U1-Pad7_ Net-_X2-Pad4_ NAND_2		
+X3  Net-_X1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad4_ Net-_U1-Pad6_ Net-_U1-Pad7_ NAND_2		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/SRFF.cir.out b/library/SubcircuitLibrary/SN54L99/SRFF.cir.out
new file mode 100644
index 000000000..dbe9e83db
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SRFF.cir.out
@@ -0,0 +1,25 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/srff/srff.cir
+
+.include NAND_2.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad6_ net-_u1-pad8_ net-_u1-pad9_ port
+x1 net-_u1-pad1_ net-_u1-pad6_ net-_u1-pad4_ net-_x1-pad4_ net-_u1-pad2_ NAND_2
+x2 net-_u1-pad2_ net-_u1-pad6_ net-_u1-pad4_ net-_x2-pad4_ net-_u1-pad3_ NAND_2
+x4 net-_u1-pad8_ net-_u1-pad6_ net-_u1-pad4_ net-_u1-pad9_ net-_x2-pad4_ NAND_2
+x3 net-_x1-pad4_ net-_u1-pad6_ net-_u1-pad4_ net-_u1-pad8_ net-_u1-pad9_ NAND_2
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/SRFF.pro b/library/SubcircuitLibrary/SN54L99/SRFF.pro
new file mode 100644
index 000000000..c46505591
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SRFF.pro
@@ -0,0 +1,74 @@
+update=Thu Jul 10 16:57:06 2025
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=SRFF-rescue
+LibName2=adc-dac
+LibName3=memory
+LibName4=xilinx
+LibName5=microcontrollers
+LibName6=dsp
+LibName7=microchip
+LibName8=analog_switches
+LibName9=motorola
+LibName10=texas
+LibName11=intel
+LibName12=audio
+LibName13=interface
+LibName14=digital-audio
+LibName15=philips
+LibName16=display
+LibName17=cypress
+LibName18=siliconi
+LibName19=opto
+LibName20=atmel
+LibName21=contrib
+LibName22=power
+LibName23=eSim_Plot
+LibName24=transistors
+LibName25=conn
+LibName26=eSim_User
+LibName27=regul
+LibName28=74xx
+LibName29=cmos4000
+LibName30=eSim_Analog
+LibName31=eSim_Devices
+LibName32=eSim_Digital
+LibName33=eSim_Hybrid
+LibName34=eSim_Miscellaneous
+LibName35=eSim_Power
+LibName36=eSim_Sources
+LibName37=eSim_Subckt
+LibName38=eSim_Nghdl
+LibName39=eSim_Ngveri
+LibName40=eSim_SKY130
+LibName41=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/SRFF.sch b/library/SubcircuitLibrary/SN54L99/SRFF.sch
new file mode 100644
index 000000000..1d06e1c86
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SRFF.sch
@@ -0,0 +1,255 @@
+EESchema Schematic File Version 2
+LIBS:SRFF-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SRFF-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode1
+U 1 1 685C24CA
+P 10050 1950
+F 0 "scmode1" H 10050 2100 98  0000 C CNB
+F 1 "SKY130mode" H 10050 1850 118 0000 C CNB
+F 2 "" H 10050 2100 60  0001 C CNN
+F 3 "" H 10050 2100 60  0001 C CNN
+	1    10050 1950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685C276D
+P 3150 3400
+F 0 "U1" H 3200 3500 30  0000 C CNN
+F 1 "PORT" H 3150 3400 30  0000 C CNN
+F 2 "" H 3150 3400 60  0000 C CNN
+F 3 "" H 3150 3400 60  0000 C CNN
+	2    3150 3400
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685C27A4
+P 3250 4150
+F 0 "U1" H 3300 4250 30  0000 C CNN
+F 1 "PORT" H 3250 4150 30  0000 C CNN
+F 2 "" H 3250 4150 60  0000 C CNN
+F 3 "" H 3250 4150 60  0000 C CNN
+	3    3250 4150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685C293F
+P 4350 2150
+F 0 "U1" H 4400 2250 30  0000 C CNN
+F 1 "PORT" H 4350 2150 30  0000 C CNN
+F 2 "" H 4350 2150 60  0000 C CNN
+F 3 "" H 4350 2150 60  0000 C CNN
+	4    4350 2150
+	0    1    1    0   
+$EndComp
+$Comp
+L NAND_2 X1
+U 1 1 686FA4A9
+P 3900 2650
+F 0 "X1" H 4000 2650 60  0000 C CNN
+F 1 "NAND_2" H 3950 2400 60  0000 C CNN
+F 2 "" H 3900 2650 60  0001 C CNN
+F 3 "" H 3900 2650 60  0001 C CNN
+	1    3900 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_2 X2
+U 1 1 686FA560
+P 3900 4100
+F 0 "X2" H 4000 4100 60  0000 C CNN
+F 1 "NAND_2" H 3950 3850 60  0000 C CNN
+F 2 "" H 3900 4100 60  0001 C CNN
+F 3 "" H 3900 4100 60  0001 C CNN
+	1    3900 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_2 X4
+U 1 1 686FA5A9
+P 5250 4050
+F 0 "X4" H 5350 4050 60  0000 C CNN
+F 1 "NAND_2" H 5300 3800 60  0000 C CNN
+F 2 "" H 5250 4050 60  0001 C CNN
+F 3 "" H 5250 4050 60  0001 C CNN
+	1    5250 4050
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_2 X3
+U 1 1 686FA7E8
+P 5250 2700
+F 0 "X3" H 5350 2700 60  0000 C CNN
+F 1 "NAND_2" H 5300 2450 60  0000 C CNN
+F 2 "" H 5250 2700 60  0001 C CNN
+F 3 "" H 5250 2700 60  0001 C CNN
+	1    5250 2700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 685C2716
+P 3250 2600
+F 0 "U1" H 3300 2700 30  0000 C CNN
+F 1 "PORT" H 3250 2600 30  0000 C CNN
+F 2 "" H 3250 2600 60  0000 C CNN
+F 3 "" H 3250 2600 60  0000 C CNN
+	1    3250 2600
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4850 4000 4750 4000
+Wire Wire Line
+	4750 4000 4750 3800
+Wire Wire Line
+	4750 3800 5950 3800
+Wire Wire Line
+	5950 3800 5950 2700
+Wire Wire Line
+	5950 2700 5850 2700
+Wire Wire Line
+	4850 2750 4750 2750
+Wire Wire Line
+	4750 2750 4750 3000
+Wire Wire Line
+	4750 3000 5950 3000
+Wire Wire Line
+	5950 3000 5950 4050
+Wire Wire Line
+	5950 4050 5850 4050
+Wire Wire Line
+	4500 2650 4850 2650
+Wire Wire Line
+	4500 4100 4850 4100
+Wire Wire Line
+	3400 2700 3500 2700
+Wire Wire Line
+	3400 2700 3400 4050
+Wire Wire Line
+	3400 4050 3500 4050
+Connection ~ 3400 3400
+Connection ~ 5950 2700
+Connection ~ 5950 4050
+Wire Wire Line
+	3500 2500 3500 2400
+Wire Wire Line
+	3500 2400 4850 2400
+Wire Wire Line
+	4850 2400 4850 2550
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+	4850 3750 4850 3900
+Wire Wire Line
+	4850 2850 4850 2950
+Wire Wire Line
+	4850 2950 3500 2950
+Wire Wire Line
+	3500 2950 3500 2800
+Wire Wire Line
+	3500 4250 3500 4400
+Wire Wire Line
+	3500 4400 4850 4400
+Wire Wire Line
+	4850 4400 4850 4200
+Wire Wire Line
+	4350 2400 4350 3750
+Connection ~ 4350 3750
+Connection ~ 4350 2400
+Wire Wire Line
+	4600 2950 4600 4400
+Connection ~ 4600 4400
+Connection ~ 4600 2950
+$Comp
+L PORT U1
+U 5 1 686FC037
+P 4600 4650
+F 0 "U1" H 4650 4750 30  0000 C CNN
+F 1 "PORT" H 4600 4650 30  0000 C CNN
+F 2 "" H 4600 4650 60  0000 C CNN
+F 3 "" H 4600 4650 60  0000 C CNN
+	5    4600 4650
+	0    -1   -1   0   
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686FC0E0
+P 6200 2700
+F 0 "U1" H 6250 2800 30  0000 C CNN
+F 1 "PORT" H 6200 2700 30  0000 C CNN
+F 2 "" H 6200 2700 60  0000 C CNN
+F 3 "" H 6200 2700 60  0000 C CNN
+	6    6200 2700
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686FC1DD
+P 6200 4050
+F 0 "U1" H 6250 4150 30  0000 C CNN
+F 1 "PORT" H 6200 4050 30  0000 C CNN
+F 2 "" H 6200 4050 60  0000 C CNN
+F 3 "" H 6200 4050 60  0000 C CNN
+	7    6200 4050
+	-1   0    0    1   
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/SRFF.sub b/library/SubcircuitLibrary/SN54L99/SRFF.sub
new file mode 100644
index 000000000..31f2380ca
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SRFF.sub
@@ -0,0 +1,19 @@
+* Subcircuit SRFF
+.subckt SRFF net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad6_ net-_u1-pad8_ net-_u1-pad9_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/srff/srff.cir
+.include NAND_2.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+* s c m o d e
+x1 net-_u1-pad1_ net-_u1-pad6_ net-_u1-pad4_ net-_x1-pad4_ net-_u1-pad2_ NAND_2
+x2 net-_u1-pad2_ net-_u1-pad6_ net-_u1-pad4_ net-_x2-pad4_ net-_u1-pad3_ NAND_2
+x4 net-_u1-pad8_ net-_u1-pad6_ net-_u1-pad4_ net-_u1-pad9_ net-_x2-pad4_ NAND_2
+x3 net-_x1-pad4_ net-_u1-pad6_ net-_u1-pad4_ net-_u1-pad8_ net-_u1-pad9_ NAND_2
+* Control Statements
+
+.ends SRFF
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/SRFF_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/SRFF_Previous_Values.xml
new file mode 100644
index 000000000..15c0fb647
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SRFF_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x2><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x4><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x3></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/SerialParallel_blk-cache.lib b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk-cache.lib
new file mode 100644
index 000000000..b32a483e6
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk-cache.lib
@@ -0,0 +1,173 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# 3_in_and
+#
+DEF 3_in_and X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "3_in_and" 50 -300 60 H V C CNN
+F2 "" 600 -150 60 H I C CNN
+F3 "" 600 -150 60 H I C CNN
+DRAW
+A 100 0 255 787 -787 0 1 0 N 150 250 150 -250
+P 2 0 1 0 -150 250 100 250 N
+P 2 0 1 0 150 250 100 250 N
+P 3 0 1 0 -150 250 -150 -250 150 -250 N
+X in1 1 -350 100 200 R 50 50 1 1 I
+X in2 2 -350 0 200 R 50 50 1 1 I
+X Vdd 3 -350 200 200 R 50 50 1 1 I
+X Gnd 4 -350 -200 200 R 50 50 1 1 I
+X in3 5 -350 -100 200 R 50 50 1 1 I
+X out 6 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# 4_in_and
+#
+DEF 4_in_and X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "4_in_and" -50 -400 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 0 -25 329 813 -813 0 1 0 N 50 300 50 -350
+P 2 0 1 0 -250 300 50 300 N
+P 3 0 1 0 -250 300 -250 -350 50 -350 N
+X Vdd 1 -450 250 200 R 50 50 1 1 I
+X in1 2 -450 150 200 R 50 50 1 1 I
+X in2 3 -450 50 200 R 50 50 1 1 I
+X in3 4 -450 -100 200 R 50 50 1 1 I
+X Gnd 5 -450 -300 200 R 50 50 1 1 I
+X in4 6 -450 -200 200 R 50 50 1 1 I
+X out 7 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CMOS_Buf
+#
+DEF CMOS_Buf X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_Buf" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+P 2 0 1 0 -250 150 250 0 N
+P 3 0 1 0 -250 150 -250 -150 250 0 N
+X Vdd 1 -450 100 200 R 50 50 1 1 I
+X Gnd 2 -450 -100 200 R 50 50 1 1 I
+X in 3 -450 0 200 R 50 50 1 1 I
+X Out 4 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 300 0 50 0 1 0 N
+P 2 0 1 0 -200 150 250 0 N
+P 3 0 1 0 -200 150 -200 -150 250 0 N
+X in 1 -400 0 200 R 50 50 1 1 I
+X Vdd 2 -400 100 200 R 50 50 1 1 I
+X Gnd 3 -400 -100 200 R 50 50 1 1 I
+X Out 4 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NOR_3
+#
+DEF NOR_3 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "NOR_3" -150 -350 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A -600 0 361 563 -563 0 1 0 N -400 300 -400 -300
+A -277 -288 601 1018 287 0 1 0 N -400 300 250 0
+A -277 288 601 -1018 -287 0 1 0 N -400 -300 250 0
+C 300 0 50 0 1 0 N
+X in1 1 -450 100 200 R 50 50 1 1 I
+X in2 2 -450 0 200 R 50 50 1 1 I
+X out 3 550 0 200 L 50 50 1 1 O
+X Gnd 4 -500 -200 200 R 50 50 1 1 I
+X Vdd 5 -500 200 200 R 50 50 1 1 I
+X in3 6 -450 -100 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# SRFF
+#
+DEF SRFF X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "SRFF" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 250 300 -150 0 1 0 N
+X S 1 -500 100 200 R 50 50 1 1 I
+X clk 2 -500 0 200 R 50 50 1 1 I
+X R 3 -500 -100 200 R 50 50 1 1 I
+X Vdd 4 -500 200 200 R 50 50 1 1 I
+X Gnd 5 500 -100 200 L 50 50 1 1 I
+X Q 6 500 150 200 L 50 50 1 1 O
+X Qn 7 500 50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.bak b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.bak
new file mode 100644
index 000000000..4784ac42c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.bak
@@ -0,0 +1,557 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L 4_in_and X5
+U 1 1 686FAC82
+P 4850 2050
+F 0 "X5" H 4850 2050 60  0000 C CNN
+F 1 "4_in_and" H 4800 1650 60  0000 C CNN
+F 2 "" H 4850 2050 60  0001 C CNN
+F 3 "" H 4850 2050 60  0001 C CNN
+	1    4850 2050
+	1    0    0    -1  
+$EndComp
+$Comp
+L 3_in_and X3
+U 1 1 686FACB3
+P 4750 3000
+F 0 "X3" H 4850 3000 60  0000 C CNN
+F 1 "3_in_and" H 4800 2700 60  0000 C CNN
+F 2 "" H 5350 2850 60  0001 C CNN
+F 3 "" H 5350 2850 60  0001 C CNN
+	1    4750 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L NOR_3 X8
+U 1 1 686FAE68
+P 6400 2550
+F 0 "X8" H 6400 2550 60  0000 C CNN
+F 1 "NOR_3" H 6250 2200 60  0000 C CNN
+F 2 "" H 6400 2550 60  0001 C CNN
+F 3 "" H 6400 2550 60  0001 C CNN
+	1    6400 2550
+	1    0    0    -1  
+$EndComp
+$Comp
+L 4_in_and X6
+U 1 1 686FB0C6
+P 4850 4300
+F 0 "X6" H 4850 4300 60  0000 C CNN
+F 1 "4_in_and" H 4800 3900 60  0000 C CNN
+F 2 "" H 4850 4300 60  0001 C CNN
+F 3 "" H 4850 4300 60  0001 C CNN
+	1    4850 4300
+	1    0    0    -1  
+$EndComp
+$Comp
+L 3_in_and X4
+U 1 1 686FB0CD
+P 4750 5250
+F 0 "X4" H 4850 5250 60  0000 C CNN
+F 1 "3_in_and" H 4800 4950 60  0000 C CNN
+F 2 "" H 5350 5100 60  0001 C CNN
+F 3 "" H 5350 5100 60  0001 C CNN
+	1    4750 5250
+	1    0    0    -1  
+$EndComp
+$Comp
+L NOR_3 X9
+U 1 1 686FB0D4
+P 6400 4800
+F 0 "X9" H 6400 4800 60  0000 C CNN
+F 1 "NOR_3" H 6250 4450 60  0000 C CNN
+F 2 "" H 6400 4800 60  0001 C CNN
+F 3 "" H 6400 4800 60  0001 C CNN
+	1    6400 4800
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_Buf X10
+U 1 1 686FB13D
+P 6750 3250
+F 0 "X10" H 6750 3250 60  0000 C CNN
+F 1 "CMOS_Buf" H 6750 3050 60  0000 C CNN
+F 2 "" H 6750 3250 60  0001 C CNN
+F 3 "" H 6750 3250 60  0001 C CNN
+	1    6750 3250
+	-1   0    0    1   
+$EndComp
+$Comp
+L CMOS_Buf X11
+U 1 1 686FB1A8
+P 6750 4000
+F 0 "X11" H 6750 4000 60  0000 C CNN
+F 1 "CMOS_Buf" H 6750 3800 60  0000 C CNN
+F 2 "" H 6750 4000 60  0001 C CNN
+F 3 "" H 6750 4000 60  0001 C CNN
+	1    6750 4000
+	-1   0    0    1   
+$EndComp
+$Comp
+L CMOS_INVTR X12
+U 1 1 686FB1FB
+P 7200 3600
+F 0 "X12" H 7200 3600 60  0000 C CNN
+F 1 "CMOS_INVTR" H 7250 3400 60  0000 C CNN
+F 2 "" H 7200 3600 60  0001 C CNN
+F 3 "" H 7200 3600 60  0001 C CNN
+	1    7200 3600
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_Buf X7
+U 1 1 686FB24C
+P 6350 3600
+F 0 "X7" H 6350 3600 60  0000 C CNN
+F 1 "CMOS_Buf" H 6350 3400 60  0000 C CNN
+F 2 "" H 6350 3600 60  0001 C CNN
+F 3 "" H 6350 3600 60  0001 C CNN
+	1    6350 3600
+	1    0    0    -1  
+$EndComp
+$Comp
+L SRFF X13
+U 1 1 686FB30D
+P 8800 3600
+F 0 "X13" H 8800 3600 60  0000 C CNN
+F 1 "SRFF" H 8800 3400 60  0000 C CNN
+F 2 "" H 8800 3600 60  0001 C CNN
+F 3 "" H 8800 3600 60  0001 C CNN
+	1    8800 3600
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5350 2050 5350 2450
+Wire Wire Line
+	5350 2450 5950 2450
+Wire Wire Line
+	5300 3000 5350 3000
+Wire Wire Line
+	5350 3000 5350 2550
+Wire Wire Line
+	5350 2550 5950 2550
+Wire Wire Line
+	6300 3250 5400 3250
+Wire Wire Line
+	5400 3250 5400 2650
+Wire Wire Line
+	5400 2650 5950 2650
+Wire Wire Line
+	5350 4300 5350 4800
+Wire Wire Line
+	5350 4800 5950 4800
+Wire Wire Line
+	5300 5250 5350 5250
+Wire Wire Line
+	5350 5250 5350 4900
+Wire Wire Line
+	5350 4900 5950 4900
+Wire Wire Line
+	6300 4000 5400 4000
+Wire Wire Line
+	5400 4000 5400 4700
+Wire Wire Line
+	5400 4700 5950 4700
+Wire Wire Line
+	4400 2150 4200 2150
+Wire Wire Line
+	4200 2150 4200 5150
+Wire Wire Line
+	4200 4400 4400 4400
+Wire Wire Line
+	4200 5150 4400 5150
+Connection ~ 4200 4400
+Wire Wire Line
+	4400 2900 4200 2900
+Connection ~ 4200 2900
+Wire Wire Line
+	7200 3250 8150 3250
+Wire Wire Line
+	7750 3600 8300 3600
+Wire Wire Line
+	8150 3250 8150 3500
+Wire Wire Line
+	8150 3500 8300 3500
+Wire Wire Line
+	7200 4000 8150 4000
+Wire Wire Line
+	8150 4000 8150 3700
+Wire Wire Line
+	8150 3700 8300 3700
+Wire Wire Line
+	6950 4800 8000 4800
+Wire Wire Line
+	8000 4800 8000 3250
+Connection ~ 8000 3250
+Wire Wire Line
+	8050 4000 8050 2550
+Connection ~ 8050 4000
+Wire Wire Line
+	8050 2550 6950 2550
+Wire Wire Line
+	4400 1900 4200 1900
+Wire Wire Line
+	4200 1900 4200 1650
+Wire Wire Line
+	4200 1650 9550 1650
+Wire Wire Line
+	9550 1650 9550 3550
+Wire Wire Line
+	9550 3550 9300 3550
+Wire Wire Line
+	9300 3450 10150 3450
+Wire Wire Line
+	9600 3450 9600 5600
+Wire Wire Line
+	9600 5600 4100 5600
+Wire Wire Line
+	4100 5600 4100 4250
+Wire Wire Line
+	4100 4250 4400 4250
+Connection ~ 9600 3450
+Wire Wire Line
+	2800 2000 4400 2000
+Wire Wire Line
+	4400 2250 4300 2250
+Wire Wire Line
+	4300 2250 4300 6250
+Wire Wire Line
+	4300 6250 4200 6250
+Wire Wire Line
+	4400 4500 4300 4500
+Connection ~ 4300 4500
+$Comp
+L CMOS_INVTR X1
+U 1 1 686FBB09
+P 3850 4150
+F 0 "X1" H 3850 4150 60  0000 C CNN
+F 1 "CMOS_INVTR" H 3900 3950 60  0000 C CNN
+F 2 "" H 3850 4150 60  0001 C CNN
+F 3 "" H 3850 4150 60  0001 C CNN
+	1    3850 4150
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3450 4150 2800 4150
+Text Label 2900 4150 0    60   ~ 0
+K
+Text Label 2950 2000 0    60   ~ 0
+J
+$Comp
+L CMOS_INVTR X2
+U 1 1 686FBC8F
+P 3850 5350
+F 0 "X2" H 3850 5350 60  0000 C CNN
+F 1 "CMOS_INVTR" H 3900 5150 60  0000 C CNN
+F 2 "" H 3850 5350 60  0001 C CNN
+F 3 "" H 3850 5350 60  0001 C CNN
+	1    3850 5350
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3450 5350 2850 5350
+Text Label 2950 5350 0    60   ~ 0
+A
+Wire Wire Line
+	3300 5350 3300 3100
+Wire Wire Line
+	3300 3100 4400 3100
+Connection ~ 3300 5350
+Wire Wire Line
+	4400 3000 3750 3000
+Wire Wire Line
+	3750 3000 3750 6250
+Wire Wire Line
+	3750 6250 3650 6250
+Text Label 4300 5900 0    60   ~ 0
+M_bar
+Text Label 3750 5900 0    60   ~ 0
+M
+Wire Wire Line
+	4400 5250 3850 5250
+Wire Wire Line
+	3850 5250 3850 5150
+Wire Wire Line
+	3850 5150 3750 5150
+Connection ~ 3750 5150
+Wire Wire Line
+	4400 1800 4400 1700
+Wire Wire Line
+	3450 1700 8300 1700
+Wire Wire Line
+	8300 1700 8300 3400
+Wire Wire Line
+	5900 2350 5900 1700
+Connection ~ 5900 1700
+Wire Wire Line
+	7200 3350 8300 3350
+Connection ~ 8300 3350
+Wire Wire Line
+	6800 3500 6800 3400
+Wire Wire Line
+	5450 3400 7300 3400
+Wire Wire Line
+	7300 3400 7300 3350
+Connection ~ 7300 3350
+Wire Wire Line
+	5900 3500 5900 3400
+Connection ~ 6800 3400
+Wire Wire Line
+	4400 2700 4400 2800
+Wire Wire Line
+	4400 2700 5450 2700
+Wire Wire Line
+	5450 2700 5450 3400
+Connection ~ 5900 3400
+Wire Wire Line
+	7200 4100 7550 4100
+Wire Wire Line
+	7550 4100 7550 3350
+Connection ~ 7550 3350
+Wire Wire Line
+	4400 4050 4400 4000
+Wire Wire Line
+	4400 4000 3450 4000
+Wire Wire Line
+	3450 1700 3450 4050
+Wire Wire Line
+	4400 5050 3450 5050
+Wire Wire Line
+	3450 5050 3450 5250
+Wire Wire Line
+	3900 5050 3900 4000
+Connection ~ 3900 4000
+Connection ~ 3900 5050
+Wire Wire Line
+	5900 4600 5250 4600
+Wire Wire Line
+	5250 4600 5250 4850
+Wire Wire Line
+	5250 4850 3900 4850
+Connection ~ 3900 4850
+Connection ~ 4400 1700
+Connection ~ 3450 4000
+Wire Wire Line
+	4400 2350 4350 2350
+Wire Wire Line
+	4350 2350 4350 5650
+Wire Wire Line
+	4350 3200 4400 3200
+Wire Wire Line
+	3450 4600 4400 4600
+Connection ~ 4350 3200
+Wire Wire Line
+	4350 5450 4400 5450
+Connection ~ 4350 4600
+Wire Wire Line
+	3450 4600 3450 4250
+Wire Wire Line
+	3450 5450 3450 5650
+Wire Wire Line
+	3450 5650 9300 5650
+Connection ~ 4350 5450
+Wire Wire Line
+	5900 5650 5900 5000
+Connection ~ 4350 5650
+Wire Wire Line
+	9300 5650 9300 3700
+Connection ~ 5900 5650
+Wire Wire Line
+	5900 2750 5650 2750
+Wire Wire Line
+	5650 2750 5650 5650
+Connection ~ 5650 5650
+Wire Wire Line
+	5900 3700 5650 3700
+Connection ~ 5650 3700
+Wire Wire Line
+	7200 3150 7200 3050
+Wire Wire Line
+	7200 3050 5650 3050
+Connection ~ 5650 3050
+Wire Wire Line
+	7200 3900 7200 3850
+Wire Wire Line
+	7200 3850 7100 3850
+Wire Wire Line
+	7100 3850 7100 3050
+Connection ~ 7100 3050
+Wire Wire Line
+	6800 3700 6800 3750
+Wire Wire Line
+	6800 3750 7100 3750
+Connection ~ 7100 3750
+Wire Wire Line
+	5900 3600 2850 3600
+Text Label 3050 3600 0    60   ~ 0
+clk
+Text Label 9950 3450 0    60   ~ 0
+Qa
+$Comp
+L PORT U1
+U 1 1 686FD4D2
+P 2550 2000
+F 0 "U1" H 2600 2100 30  0000 C CNN
+F 1 "PORT" H 2550 2000 30  0000 C CNN
+F 2 "" H 2550 2000 60  0000 C CNN
+F 3 "" H 2550 2000 60  0000 C CNN
+	1    2550 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686FD5E7
+P 2600 3600
+F 0 "U1" H 2650 3700 30  0000 C CNN
+F 1 "PORT" H 2600 3600 30  0000 C CNN
+F 2 "" H 2600 3600 60  0000 C CNN
+F 3 "" H 2600 3600 60  0000 C CNN
+	3    2600 3600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686FD6BF
+P 2550 4150
+F 0 "U1" H 2600 4250 30  0000 C CNN
+F 1 "PORT" H 2550 4150 30  0000 C CNN
+F 2 "" H 2550 4150 60  0000 C CNN
+F 3 "" H 2550 4150 60  0000 C CNN
+	2    2550 4150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686FD754
+P 2600 5350
+F 0 "U1" H 2650 5450 30  0000 C CNN
+F 1 "PORT" H 2600 5350 30  0000 C CNN
+F 2 "" H 2600 5350 60  0000 C CNN
+F 3 "" H 2600 5350 60  0000 C CNN
+	4    2600 5350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686FD7DF
+P 3400 6250
+F 0 "U1" H 3450 6350 30  0000 C CNN
+F 1 "PORT" H 3400 6250 30  0000 C CNN
+F 2 "" H 3400 6250 60  0000 C CNN
+F 3 "" H 3400 6250 60  0000 C CNN
+	5    3400 6250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686FD820
+P 3950 6250
+F 0 "U1" H 4000 6350 30  0000 C CNN
+F 1 "PORT" H 3950 6250 30  0000 C CNN
+F 2 "" H 3950 6250 60  0000 C CNN
+F 3 "" H 3950 6250 60  0000 C CNN
+	6    3950 6250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 686FD956
+P 10400 3450
+F 0 "U1" H 10450 3550 30  0000 C CNN
+F 1 "PORT" H 10400 3450 30  0000 C CNN
+F 2 "" H 10400 3450 60  0000 C CNN
+F 3 "" H 10400 3450 60  0000 C CNN
+	9    10400 3450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686FDA9B
+P 8550 3150
+F 0 "U1" H 8600 3250 30  0000 C CNN
+F 1 "PORT" H 8550 3150 30  0000 C CNN
+F 2 "" H 8550 3150 60  0000 C CNN
+F 3 "" H 8550 3150 60  0000 C CNN
+	7    8550 3150
+	-1   0    0    1   
+$EndComp
+Connection ~ 8300 3150
+Connection ~ 9300 4000
+$Comp
+L PORT U1
+U 8 1 686FDB8D
+P 9050 4000
+F 0 "U1" H 9100 4100 30  0000 C CNN
+F 1 "PORT" H 9050 4000 30  0000 C CNN
+F 2 "" H 9050 4000 60  0000 C CNN
+F 3 "" H 9050 4000 60  0000 C CNN
+	8    9050 4000
+	1    0    0    -1  
+$EndComp
+Connection ~ 4200 3600
+$Comp
+L SKY130mode scmode1
+U 1 1 686FE421
+P 6300 6600
+F 0 "scmode1" H 6300 6750 98  0000 C CNB
+F 1 "SKY130mode" H 6300 6500 118 0000 C CNB
+F 2 "" H 6300 6750 60  0001 C CNN
+F 3 "" H 6300 6750 60  0001 C CNN
+	1    6300 6600
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.cir b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.cir
new file mode 100644
index 000000000..059a1c5d0
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.cir
@@ -0,0 +1,25 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SerialParallel_blk/SerialParallel_blk.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Thu Jul 10 18:13:44 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X5  Net-_U1-Pad7_ Net-_X13-Pad7_ Net-_U1-Pad1_ Net-_U1-Pad3_ Net-_U1-Pad8_ Net-_U1-Pad6_ Net-_X5-Pad7_ 4_in_and		
+X3  Net-_U1-Pad3_ Net-_U1-Pad5_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad4_ Net-_X3-Pad6_ 3_in_and		
+X8  Net-_X5-Pad7_ Net-_X3-Pad6_ Net-_X11-Pad3_ Net-_U1-Pad8_ Net-_U1-Pad7_ Net-_X10-Pad4_ NOR_3		
+X6  Net-_U1-Pad7_ Net-_X1-Pad4_ Net-_U1-Pad9_ Net-_U1-Pad3_ Net-_U1-Pad8_ Net-_U1-Pad6_ Net-_X6-Pad7_ 4_in_and		
+X4  Net-_U1-Pad3_ Net-_U1-Pad5_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_X2-Pad4_ Net-_X4-Pad6_ 3_in_and		
+X9  Net-_X11-Pad4_ Net-_X6-Pad7_ Net-_X10-Pad3_ Net-_U1-Pad8_ Net-_U1-Pad7_ Net-_X4-Pad6_ NOR_3		
+X10  Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_X10-Pad3_ Net-_X10-Pad4_ CMOS_Buf		
+X11  Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_X11-Pad3_ Net-_X11-Pad4_ CMOS_Buf		
+X12  Net-_X12-Pad1_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_X12-Pad4_ CMOS_INVTR		
+X7  Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad3_ Net-_X12-Pad1_ CMOS_Buf		
+X13  Net-_X10-Pad3_ Net-_X12-Pad4_ Net-_X11-Pad3_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad9_ Net-_X13-Pad7_ SRFF		
+X1  Net-_U1-Pad2_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_X1-Pad4_ CMOS_INVTR		
+X2  Net-_U1-Pad4_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_X2-Pad4_ CMOS_INVTR		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad9_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.cir.out b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.cir.out
new file mode 100644
index 000000000..e080aa9f9
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.cir.out
@@ -0,0 +1,39 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/serialparallel_blk/serialparallel_blk.cir
+
+.include CMOS_Buf.sub
+.include 4_in_and.sub
+.include SRFF.sub
+.include 3_in_and.sub
+.include CMOS_INVTR.sub
+.include NOR_3.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+x5 net-_u1-pad7_ net-_x13-pad7_ net-_u1-pad1_ net-_u1-pad3_ net-_u1-pad8_ net-_u1-pad6_ net-_x5-pad7_ 4_in_and
+x3 net-_u1-pad3_ net-_u1-pad5_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad4_ net-_x3-pad6_ 3_in_and
+x8 net-_x5-pad7_ net-_x3-pad6_ net-_x11-pad3_ net-_u1-pad8_ net-_u1-pad7_ net-_x10-pad4_ NOR_3
+x6 net-_u1-pad7_ net-_x1-pad4_ net-_u1-pad9_ net-_u1-pad3_ net-_u1-pad8_ net-_u1-pad6_ net-_x6-pad7_ 4_in_and
+x4 net-_u1-pad3_ net-_u1-pad5_ net-_u1-pad7_ net-_u1-pad8_ net-_x2-pad4_ net-_x4-pad6_ 3_in_and
+x9 net-_x11-pad4_ net-_x6-pad7_ net-_x10-pad3_ net-_u1-pad8_ net-_u1-pad7_ net-_x4-pad6_ NOR_3
+x10 net-_u1-pad7_ net-_u1-pad8_ net-_x10-pad3_ net-_x10-pad4_ CMOS_Buf
+x11 net-_u1-pad7_ net-_u1-pad8_ net-_x11-pad3_ net-_x11-pad4_ CMOS_Buf
+x12 net-_x12-pad1_ net-_u1-pad7_ net-_u1-pad8_ net-_x12-pad4_ CMOS_INVTR
+x7 net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad3_ net-_x12-pad1_ CMOS_Buf
+x13 net-_x10-pad3_ net-_x12-pad4_ net-_x11-pad3_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_x13-pad7_ SRFF
+x1 net-_u1-pad2_ net-_u1-pad7_ net-_u1-pad8_ net-_x1-pad4_ CMOS_INVTR
+x2 net-_u1-pad4_ net-_u1-pad7_ net-_u1-pad8_ net-_x2-pad4_ CMOS_INVTR
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.pro b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.sch b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.sch
new file mode 100644
index 000000000..650c73878
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.sch
@@ -0,0 +1,543 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L 4_in_and X5
+U 1 1 686FAC82
+P 4850 2050
+F 0 "X5" H 4850 2050 60  0000 C CNN
+F 1 "4_in_and" H 4800 1650 60  0000 C CNN
+F 2 "" H 4850 2050 60  0001 C CNN
+F 3 "" H 4850 2050 60  0001 C CNN
+	1    4850 2050
+	1    0    0    -1  
+$EndComp
+$Comp
+L 3_in_and X3
+U 1 1 686FACB3
+P 4750 3000
+F 0 "X3" H 4850 3000 60  0000 C CNN
+F 1 "3_in_and" H 4800 2700 60  0000 C CNN
+F 2 "" H 5350 2850 60  0001 C CNN
+F 3 "" H 5350 2850 60  0001 C CNN
+	1    4750 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L NOR_3 X8
+U 1 1 686FAE68
+P 6400 2550
+F 0 "X8" H 6400 2550 60  0000 C CNN
+F 1 "NOR_3" H 6250 2200 60  0000 C CNN
+F 2 "" H 6400 2550 60  0001 C CNN
+F 3 "" H 6400 2550 60  0001 C CNN
+	1    6400 2550
+	1    0    0    -1  
+$EndComp
+$Comp
+L 4_in_and X6
+U 1 1 686FB0C6
+P 4850 4300
+F 0 "X6" H 4850 4300 60  0000 C CNN
+F 1 "4_in_and" H 4800 3900 60  0000 C CNN
+F 2 "" H 4850 4300 60  0001 C CNN
+F 3 "" H 4850 4300 60  0001 C CNN
+	1    4850 4300
+	1    0    0    -1  
+$EndComp
+$Comp
+L 3_in_and X4
+U 1 1 686FB0CD
+P 4750 5250
+F 0 "X4" H 4850 5250 60  0000 C CNN
+F 1 "3_in_and" H 4800 4950 60  0000 C CNN
+F 2 "" H 5350 5100 60  0001 C CNN
+F 3 "" H 5350 5100 60  0001 C CNN
+	1    4750 5250
+	1    0    0    -1  
+$EndComp
+$Comp
+L NOR_3 X9
+U 1 1 686FB0D4
+P 6400 4800
+F 0 "X9" H 6400 4800 60  0000 C CNN
+F 1 "NOR_3" H 6250 4450 60  0000 C CNN
+F 2 "" H 6400 4800 60  0001 C CNN
+F 3 "" H 6400 4800 60  0001 C CNN
+	1    6400 4800
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_Buf X10
+U 1 1 686FB13D
+P 6750 3250
+F 0 "X10" H 6750 3250 60  0000 C CNN
+F 1 "CMOS_Buf" H 6750 3050 60  0000 C CNN
+F 2 "" H 6750 3250 60  0001 C CNN
+F 3 "" H 6750 3250 60  0001 C CNN
+	1    6750 3250
+	-1   0    0    1   
+$EndComp
+$Comp
+L CMOS_Buf X11
+U 1 1 686FB1A8
+P 6750 4000
+F 0 "X11" H 6750 4000 60  0000 C CNN
+F 1 "CMOS_Buf" H 6750 3800 60  0000 C CNN
+F 2 "" H 6750 4000 60  0001 C CNN
+F 3 "" H 6750 4000 60  0001 C CNN
+	1    6750 4000
+	-1   0    0    1   
+$EndComp
+$Comp
+L CMOS_INVTR X12
+U 1 1 686FB1FB
+P 7200 3600
+F 0 "X12" H 7200 3600 60  0000 C CNN
+F 1 "CMOS_INVTR" H 7250 3400 60  0000 C CNN
+F 2 "" H 7200 3600 60  0001 C CNN
+F 3 "" H 7200 3600 60  0001 C CNN
+	1    7200 3600
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_Buf X7
+U 1 1 686FB24C
+P 6350 3600
+F 0 "X7" H 6350 3600 60  0000 C CNN
+F 1 "CMOS_Buf" H 6350 3400 60  0000 C CNN
+F 2 "" H 6350 3600 60  0001 C CNN
+F 3 "" H 6350 3600 60  0001 C CNN
+	1    6350 3600
+	1    0    0    -1  
+$EndComp
+$Comp
+L SRFF X13
+U 1 1 686FB30D
+P 8800 3600
+F 0 "X13" H 8800 3600 60  0000 C CNN
+F 1 "SRFF" H 8800 3400 60  0000 C CNN
+F 2 "" H 8800 3600 60  0001 C CNN
+F 3 "" H 8800 3600 60  0001 C CNN
+	1    8800 3600
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5350 2050 5350 2450
+Wire Wire Line
+	5350 2450 5950 2450
+Wire Wire Line
+	5300 3000 5350 3000
+Wire Wire Line
+	5350 3000 5350 2550
+Wire Wire Line
+	5350 2550 5950 2550
+Wire Wire Line
+	6300 3250 5400 3250
+Wire Wire Line
+	5400 3250 5400 2650
+Wire Wire Line
+	5400 2650 5950 2650
+Wire Wire Line
+	5350 4300 5350 4800
+Wire Wire Line
+	5350 4800 5950 4800
+Wire Wire Line
+	5300 5250 5350 5250
+Wire Wire Line
+	5350 5250 5350 4900
+Wire Wire Line
+	5350 4900 5950 4900
+Wire Wire Line
+	6300 4000 5400 4000
+Wire Wire Line
+	5400 4000 5400 4700
+Wire Wire Line
+	5400 4700 5950 4700
+Wire Wire Line
+	4400 2150 4200 2150
+Wire Wire Line
+	4200 2150 4200 5150
+Wire Wire Line
+	4200 4400 4400 4400
+Wire Wire Line
+	4200 5150 4400 5150
+Connection ~ 4200 4400
+Wire Wire Line
+	4400 2900 4200 2900
+Connection ~ 4200 2900
+Wire Wire Line
+	7200 3250 8150 3250
+Wire Wire Line
+	7750 3600 8300 3600
+Wire Wire Line
+	8150 3250 8150 3500
+Wire Wire Line
+	8150 3500 8300 3500
+Wire Wire Line
+	7200 4000 8150 4000
+Wire Wire Line
+	8150 4000 8150 3700
+Wire Wire Line
+	8150 3700 8300 3700
+Wire Wire Line
+	6950 4800 8000 4800
+Wire Wire Line
+	8000 4800 8000 3250
+Connection ~ 8000 3250
+Wire Wire Line
+	8050 4000 8050 2550
+Connection ~ 8050 4000
+Wire Wire Line
+	8050 2550 6950 2550
+Wire Wire Line
+	4400 1900 4200 1900
+Wire Wire Line
+	4200 1900 4200 1650
+Wire Wire Line
+	4200 1650 9550 1650
+Wire Wire Line
+	9550 1650 9550 3550
+Wire Wire Line
+	9550 3550 9300 3550
+Wire Wire Line
+	9300 3450 10150 3450
+Wire Wire Line
+	9600 3450 9600 5600
+Wire Wire Line
+	9600 5600 4100 5600
+Wire Wire Line
+	4100 5600 4100 4250
+Wire Wire Line
+	4100 4250 4400 4250
+Connection ~ 9600 3450
+Wire Wire Line
+	2800 2000 4400 2000
+Wire Wire Line
+	4400 2250 4300 2250
+Wire Wire Line
+	4300 2250 4300 6250
+Wire Wire Line
+	4300 6250 4200 6250
+Wire Wire Line
+	4400 4500 4300 4500
+Connection ~ 4300 4500
+$Comp
+L CMOS_INVTR X1
+U 1 1 686FBB09
+P 3850 4150
+F 0 "X1" H 3850 4150 60  0000 C CNN
+F 1 "CMOS_INVTR" H 3900 3950 60  0000 C CNN
+F 2 "" H 3850 4150 60  0001 C CNN
+F 3 "" H 3850 4150 60  0001 C CNN
+	1    3850 4150
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3450 4150 2800 4150
+$Comp
+L CMOS_INVTR X2
+U 1 1 686FBC8F
+P 3850 5350
+F 0 "X2" H 3850 5350 60  0000 C CNN
+F 1 "CMOS_INVTR" H 3900 5150 60  0000 C CNN
+F 2 "" H 3850 5350 60  0001 C CNN
+F 3 "" H 3850 5350 60  0001 C CNN
+	1    3850 5350
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3450 5350 2850 5350
+Wire Wire Line
+	3300 5350 3300 3100
+Wire Wire Line
+	3300 3100 4400 3100
+Connection ~ 3300 5350
+Wire Wire Line
+	4400 3000 3750 3000
+Wire Wire Line
+	3750 3000 3750 6250
+Wire Wire Line
+	3750 6250 3650 6250
+Wire Wire Line
+	4400 5250 3850 5250
+Wire Wire Line
+	3850 5250 3850 5150
+Wire Wire Line
+	3850 5150 3750 5150
+Connection ~ 3750 5150
+Wire Wire Line
+	4400 1800 4400 1700
+Wire Wire Line
+	3450 1700 8300 1700
+Wire Wire Line
+	8300 1700 8300 3400
+Wire Wire Line
+	5900 2350 5900 1700
+Connection ~ 5900 1700
+Wire Wire Line
+	7200 3350 8300 3350
+Connection ~ 8300 3350
+Wire Wire Line
+	6800 3500 6800 3400
+Wire Wire Line
+	5450 3400 7300 3400
+Wire Wire Line
+	7300 3400 7300 3350
+Connection ~ 7300 3350
+Wire Wire Line
+	5900 3500 5900 3400
+Connection ~ 6800 3400
+Wire Wire Line
+	4400 2700 4400 2800
+Wire Wire Line
+	4400 2700 5450 2700
+Wire Wire Line
+	5450 2700 5450 3400
+Connection ~ 5900 3400
+Wire Wire Line
+	7200 4100 7550 4100
+Wire Wire Line
+	7550 4100 7550 3350
+Connection ~ 7550 3350
+Wire Wire Line
+	4400 4050 4400 4000
+Wire Wire Line
+	4400 4000 3450 4000
+Wire Wire Line
+	3450 1700 3450 4050
+Wire Wire Line
+	4400 5050 3450 5050
+Wire Wire Line
+	3450 5050 3450 5250
+Wire Wire Line
+	3900 5050 3900 4000
+Connection ~ 3900 4000
+Connection ~ 3900 5050
+Wire Wire Line
+	5900 4600 5250 4600
+Wire Wire Line
+	5250 4600 5250 4850
+Wire Wire Line
+	5250 4850 3900 4850
+Connection ~ 3900 4850
+Connection ~ 4400 1700
+Connection ~ 3450 4000
+Wire Wire Line
+	4400 2350 4350 2350
+Wire Wire Line
+	4350 2350 4350 5650
+Wire Wire Line
+	4350 3200 4400 3200
+Wire Wire Line
+	3450 4600 4400 4600
+Connection ~ 4350 3200
+Wire Wire Line
+	4350 5450 4400 5450
+Connection ~ 4350 4600
+Wire Wire Line
+	3450 4600 3450 4250
+Wire Wire Line
+	3450 5450 3450 5650
+Wire Wire Line
+	3450 5650 9300 5650
+Connection ~ 4350 5450
+Wire Wire Line
+	5900 5650 5900 5000
+Connection ~ 4350 5650
+Wire Wire Line
+	9300 5650 9300 3700
+Connection ~ 5900 5650
+Wire Wire Line
+	5900 2750 5650 2750
+Wire Wire Line
+	5650 2750 5650 5650
+Connection ~ 5650 5650
+Wire Wire Line
+	5900 3700 5650 3700
+Connection ~ 5650 3700
+Wire Wire Line
+	7200 3150 7200 3050
+Wire Wire Line
+	7200 3050 5650 3050
+Connection ~ 5650 3050
+Wire Wire Line
+	7200 3900 7200 3850
+Wire Wire Line
+	7200 3850 7100 3850
+Wire Wire Line
+	7100 3850 7100 3050
+Connection ~ 7100 3050
+Wire Wire Line
+	6800 3700 6800 3750
+Wire Wire Line
+	6800 3750 7100 3750
+Connection ~ 7100 3750
+Wire Wire Line
+	5900 3600 2850 3600
+$Comp
+L PORT U1
+U 1 1 686FD4D2
+P 2550 2000
+F 0 "U1" H 2600 2100 30  0000 C CNN
+F 1 "PORT" H 2550 2000 30  0000 C CNN
+F 2 "" H 2550 2000 60  0000 C CNN
+F 3 "" H 2550 2000 60  0000 C CNN
+	1    2550 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686FD5E7
+P 2600 3600
+F 0 "U1" H 2650 3700 30  0000 C CNN
+F 1 "PORT" H 2600 3600 30  0000 C CNN
+F 2 "" H 2600 3600 60  0000 C CNN
+F 3 "" H 2600 3600 60  0000 C CNN
+	3    2600 3600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686FD6BF
+P 2550 4150
+F 0 "U1" H 2600 4250 30  0000 C CNN
+F 1 "PORT" H 2550 4150 30  0000 C CNN
+F 2 "" H 2550 4150 60  0000 C CNN
+F 3 "" H 2550 4150 60  0000 C CNN
+	2    2550 4150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686FD754
+P 2600 5350
+F 0 "U1" H 2650 5450 30  0000 C CNN
+F 1 "PORT" H 2600 5350 30  0000 C CNN
+F 2 "" H 2600 5350 60  0000 C CNN
+F 3 "" H 2600 5350 60  0000 C CNN
+	4    2600 5350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686FD7DF
+P 3400 6250
+F 0 "U1" H 3450 6350 30  0000 C CNN
+F 1 "PORT" H 3400 6250 30  0000 C CNN
+F 2 "" H 3400 6250 60  0000 C CNN
+F 3 "" H 3400 6250 60  0000 C CNN
+	5    3400 6250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686FD820
+P 3950 6250
+F 0 "U1" H 4000 6350 30  0000 C CNN
+F 1 "PORT" H 3950 6250 30  0000 C CNN
+F 2 "" H 3950 6250 60  0000 C CNN
+F 3 "" H 3950 6250 60  0000 C CNN
+	6    3950 6250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 686FD956
+P 10400 3450
+F 0 "U1" H 10450 3550 30  0000 C CNN
+F 1 "PORT" H 10400 3450 30  0000 C CNN
+F 2 "" H 10400 3450 60  0000 C CNN
+F 3 "" H 10400 3450 60  0000 C CNN
+	9    10400 3450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686FDA9B
+P 8550 3150
+F 0 "U1" H 8600 3250 30  0000 C CNN
+F 1 "PORT" H 8550 3150 30  0000 C CNN
+F 2 "" H 8550 3150 60  0000 C CNN
+F 3 "" H 8550 3150 60  0000 C CNN
+	7    8550 3150
+	-1   0    0    1   
+$EndComp
+Connection ~ 8300 3150
+Connection ~ 9300 4000
+$Comp
+L PORT U1
+U 8 1 686FDB8D
+P 9050 4000
+F 0 "U1" H 9100 4100 30  0000 C CNN
+F 1 "PORT" H 9050 4000 30  0000 C CNN
+F 2 "" H 9050 4000 60  0000 C CNN
+F 3 "" H 9050 4000 60  0000 C CNN
+	8    9050 4000
+	1    0    0    -1  
+$EndComp
+Connection ~ 4200 3600
+$Comp
+L SKY130mode scmode1
+U 1 1 686FE421
+P 6300 6600
+F 0 "scmode1" H 6300 6750 98  0000 C CNB
+F 1 "SKY130mode" H 6300 6500 118 0000 C CNB
+F 2 "" H 6300 6750 60  0001 C CNN
+F 3 "" H 6300 6750 60  0001 C CNN
+	1    6300 6600
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.sub b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.sub
new file mode 100644
index 000000000..683b229ba
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk.sub
@@ -0,0 +1,33 @@
+* Subcircuit SerialParallel_blk
+.subckt SerialParallel_blk net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/serialparallel_blk/serialparallel_blk.cir
+.include CMOS_Buf.sub
+.include 4_in_and.sub
+.include SRFF.sub
+.include 3_in_and.sub
+.include CMOS_INVTR.sub
+.include NOR_3.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+x5 net-_u1-pad7_ net-_x13-pad7_ net-_u1-pad1_ net-_u1-pad3_ net-_u1-pad8_ net-_u1-pad6_ net-_x5-pad7_ 4_in_and
+x3 net-_u1-pad3_ net-_u1-pad5_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad4_ net-_x3-pad6_ 3_in_and
+x8 net-_x5-pad7_ net-_x3-pad6_ net-_x11-pad3_ net-_u1-pad8_ net-_u1-pad7_ net-_x10-pad4_ NOR_3
+x6 net-_u1-pad7_ net-_x1-pad4_ net-_u1-pad9_ net-_u1-pad3_ net-_u1-pad8_ net-_u1-pad6_ net-_x6-pad7_ 4_in_and
+x4 net-_u1-pad3_ net-_u1-pad5_ net-_u1-pad7_ net-_u1-pad8_ net-_x2-pad4_ net-_x4-pad6_ 3_in_and
+x9 net-_x11-pad4_ net-_x6-pad7_ net-_x10-pad3_ net-_u1-pad8_ net-_u1-pad7_ net-_x4-pad6_ NOR_3
+x10 net-_u1-pad7_ net-_u1-pad8_ net-_x10-pad3_ net-_x10-pad4_ CMOS_Buf
+x11 net-_u1-pad7_ net-_u1-pad8_ net-_x11-pad3_ net-_x11-pad4_ CMOS_Buf
+x12 net-_x12-pad1_ net-_u1-pad7_ net-_u1-pad8_ net-_x12-pad4_ CMOS_INVTR
+x7 net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad3_ net-_x12-pad1_ CMOS_Buf
+x13 net-_x10-pad3_ net-_x12-pad4_ net-_x11-pad3_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_x13-pad7_ SRFF
+x1 net-_u1-pad2_ net-_u1-pad7_ net-_u1-pad8_ net-_x1-pad4_ CMOS_INVTR
+x2 net-_u1-pad4_ net-_u1-pad7_ net-_u1-pad8_ net-_x2-pad4_ CMOS_INVTR
+* s c m o d e
+* Control Statements
+
+.ends SerialParallel_blk
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/SerialParallel_blk_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk_Previous_Values.xml
new file mode 100644
index 000000000..e8cf97a6a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/SerialParallel_blk_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/4_in_and</field></x5><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/3_in_and</field></x3><x8><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NOR_3</field></x8><x6><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/4_in_and</field></x6><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/3_in_and</field></x4><x9><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NOR_3</field></x9><x10><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_Buf</field></x10><x11><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_Buf</field></x11><x12><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x12><x7><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_Buf</field></x7><x13><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SRFF</field></x13><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x2></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/analysis b/library/SubcircuitLibrary/SN54L99/analysis
new file mode 100644
index 000000000..a278481ce
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/analysis
@@ -0,0 +1 @@
+.tran 0e-00 0e-00 0e-00
diff --git a/library/SubcircuitLibrary/SN54L99/or_2-cache.lib b/library/SubcircuitLibrary/SN54L99/or_2-cache.lib
new file mode 100644
index 000000000..5f359bfb9
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/or_2-cache.lib
@@ -0,0 +1,94 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 300 0 50 0 1 0 N
+P 2 0 1 0 -200 150 250 0 N
+P 3 0 1 0 -200 150 -200 -150 250 0 N
+X in 1 -400 0 200 R 50 50 1 1 I
+X Vdd 2 -400 100 200 R 50 50 1 1 I
+X Gnd 3 -400 -100 200 R 50 50 1 1 I
+X Out 4 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NOR_2
+#
+DEF NOR_2 X 0 40 Y Y 1 F N
+F0 "X" 50 0 60 H V C CNN
+F1 "NOR_2" 0 -250 60 H V C CNN
+F2 "" -100 0 60 H I C CNN
+F3 "" -100 0 60 H I C CNN
+DRAW
+A -350 0 206 760 -760 0 1 0 N -300 200 -300 -200
+A -226 239 445 -996 -324 0 1 0 N -300 -200 150 0
+A -197 -174 388 1054 266 0 1 0 N -300 200 150 0
+C 200 0 50 0 1 0 N
+X in1 1 -350 50 200 R 50 50 1 1 I
+X Gnd 2 -400 -150 200 R 50 50 1 1 I
+X Vdd 3 -400 150 200 R 50 50 1 1 I
+X in2 4 -350 -50 200 R 50 50 1 1 I
+X out 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN54L99/or_2.bak b/library/SubcircuitLibrary/SN54L99/or_2.bak
new file mode 100644
index 000000000..f2ca541e9
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/or_2.bak
@@ -0,0 +1,154 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L NOR_2 X1
+U 1 1 685C27CC
+P 5650 2350
+F 0 "X1" H 5650 2350 60  0000 C CNN
+F 1 "NOR_2" H 5900 2350 60  0000 C CNN
+F 2 "" H 5650 2350 60  0001 C CNN
+F 3 "" H 5650 2350 60  0001 C CNN
+	1    5650 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 685C2805
+P 7100 2350
+F 0 "X2" H 7100 2350 60  0000 C CNN
+F 1 "CMOS_INVTR" H 7200 2100 60  0000 C CNN
+F 2 "" H 7100 2350 60  0001 C CNN
+F 3 "" H 7100 2350 60  0001 C CNN
+	1    7100 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 685C28CA
+P 5050 2200
+F 0 "U1" H 5100 2300 30  0000 C CNN
+F 1 "PORT" H 5050 2200 30  0000 C CNN
+F 2 "" H 5050 2200 60  0000 C CNN
+F 3 "" H 5050 2200 60  0000 C CNN
+	1    5050 2200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685C2911
+P 5050 2500
+F 0 "U1" H 5100 2600 30  0000 C CNN
+F 1 "PORT" H 5050 2500 30  0000 C CNN
+F 2 "" H 5050 2500 60  0000 C CNN
+F 3 "" H 5050 2500 60  0000 C CNN
+	2    5050 2500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685C2946
+P 8150 2350
+F 0 "U1" H 8200 2450 30  0000 C CNN
+F 1 "PORT" H 8150 2350 30  0000 C CNN
+F 2 "" H 8150 2350 60  0000 C CNN
+F 3 "" H 8150 2350 60  0000 C CNN
+	5    8150 2350
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685C2985
+P 6200 1800
+F 0 "U1" H 6250 1900 30  0000 C CNN
+F 1 "PORT" H 6200 1800 30  0000 C CNN
+F 2 "" H 6200 1800 60  0000 C CNN
+F 3 "" H 6200 1800 60  0000 C CNN
+	3    6200 1800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685C2A3C
+P 6200 2900
+F 0 "U1" H 6250 3000 30  0000 C CNN
+F 1 "PORT" H 6200 2900 30  0000 C CNN
+F 2 "" H 6200 2900 60  0000 C CNN
+F 3 "" H 6200 2900 60  0000 C CNN
+	4    6200 2900
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5750 1900 6450 1900
+Wire Wire Line
+	6450 1800 6450 2200
+Wire Wire Line
+	5750 2800 6450 2800
+Wire Wire Line
+	6450 2500 6450 2900
+Connection ~ 6450 1900
+Connection ~ 6450 2800
+$Comp
+L SKY130mode scmode1
+U 1 1 685C2B66
+P 9500 1400
+F 0 "scmode1" H 9500 1550 98  0000 C CNB
+F 1 "SKY130mode" H 9500 1300 118 0000 C CNB
+F 2 "" H 9500 1550 60  0001 C CNN
+F 3 "" H 9500 1550 60  0001 C CNN
+	1    9500 1400
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/or_2.cir b/library/SubcircuitLibrary/SN54L99/or_2.cir
new file mode 100644
index 000000000..dfdaa9c89
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/or_2.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/or_2/or_2.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Thu Jul 10 18:26:57 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ PORT		
+scmode1  SKY130mode		
+X1  Net-_U1-Pad1_ Net-_U1-Pad4_ Net-_U1-Pad3_ Net-_U1-Pad2_ Net-_X1-Pad5_ NOR_2		
+X2  Net-_X1-Pad5_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ CMOS_INVTR		
+
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/or_2.cir.out b/library/SubcircuitLibrary/SN54L99/or_2.cir.out
new file mode 100644
index 000000000..c1803c3b8
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/or_2.cir.out
@@ -0,0 +1,24 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/or_2/or_2.cir
+
+.include CMOS_INVTR.sub
+.include NOR_2.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ port
+* s c m o d e
+x1 net-_u1-pad1_ net-_u1-pad4_ net-_u1-pad3_ net-_u1-pad2_ net-_x1-pad5_ NOR_2
+x2 net-_x1-pad5_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ CMOS_INVTR
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN54L99/or_2.pro b/library/SubcircuitLibrary/SN54L99/or_2.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/or_2.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN54L99/or_2.sch b/library/SubcircuitLibrary/SN54L99/or_2.sch
new file mode 100644
index 000000000..9adf421b2
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/or_2.sch
@@ -0,0 +1,159 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:or_2-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L PORT U1
+U 1 1 685C28CA
+P 5400 2300
+F 0 "U1" H 5450 2400 30  0000 C CNN
+F 1 "PORT" H 5400 2300 30  0000 C CNN
+F 2 "" H 5400 2300 60  0000 C CNN
+F 3 "" H 5400 2300 60  0000 C CNN
+	1    5400 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685C2911
+P 5400 2400
+F 0 "U1" H 5450 2500 30  0000 C CNN
+F 1 "PORT" H 5400 2400 30  0000 C CNN
+F 2 "" H 5400 2400 60  0000 C CNN
+F 3 "" H 5400 2400 60  0000 C CNN
+	2    5400 2400
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685C2946
+P 7650 2350
+F 0 "U1" H 7700 2450 30  0000 C CNN
+F 1 "PORT" H 7650 2350 30  0000 C CNN
+F 2 "" H 7650 2350 60  0000 C CNN
+F 3 "" H 7650 2350 60  0000 C CNN
+	5    7650 2350
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685C2985
+P 6200 1800
+F 0 "U1" H 6250 1900 30  0000 C CNN
+F 1 "PORT" H 6200 1800 30  0000 C CNN
+F 2 "" H 6200 1800 60  0000 C CNN
+F 3 "" H 6200 1800 60  0000 C CNN
+	3    6200 1800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685C2A3C
+P 6200 2900
+F 0 "U1" H 6250 3000 30  0000 C CNN
+F 1 "PORT" H 6200 2900 30  0000 C CNN
+F 2 "" H 6200 2900 60  0000 C CNN
+F 3 "" H 6200 2900 60  0000 C CNN
+	4    6200 2900
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5600 1900 6450 1900
+Wire Wire Line
+	6450 1800 6450 2250
+Wire Wire Line
+	5600 2800 6450 2800
+Wire Wire Line
+	6450 2450 6450 2900
+Connection ~ 6450 1900
+Connection ~ 6450 2800
+$Comp
+L SKY130mode scmode1
+U 1 1 685C2B66
+P 9500 1400
+F 0 "scmode1" H 9500 1550 98  0000 C CNB
+F 1 "SKY130mode" H 9500 1300 118 0000 C CNB
+F 2 "" H 9500 1550 60  0001 C CNN
+F 3 "" H 9500 1550 60  0001 C CNN
+	1    9500 1400
+	1    0    0    -1  
+$EndComp
+$Comp
+L NOR_2 X1
+U 1 1 686FB89E
+P 6000 2350
+F 0 "X1" H 6050 2350 60  0000 C CNN
+F 1 "NOR_2" H 6000 2100 60  0000 C CNN
+F 2 "" H 5900 2350 60  0001 C CNN
+F 3 "" H 5900 2350 60  0001 C CNN
+	1    6000 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X2
+U 1 1 686FB8DF
+P 6850 2350
+F 0 "X2" H 6850 2350 60  0000 C CNN
+F 1 "CMOS_INVTR" H 6900 2150 60  0000 C CNN
+F 2 "" H 6850 2350 60  0001 C CNN
+F 3 "" H 6850 2350 60  0001 C CNN
+	1    6850 2350
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5600 1900 5600 2200
+Wire Wire Line
+	5600 2800 5600 2500
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN54L99/or_2.sub b/library/SubcircuitLibrary/SN54L99/or_2.sub
new file mode 100644
index 000000000..2e9b374f8
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/or_2.sub
@@ -0,0 +1,18 @@
+* Subcircuit or_2
+.subckt or_2 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/or_2/or_2.cir
+.include CMOS_INVTR.sub
+.include NOR_2.sub
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+* s c m o d e
+x1 net-_u1-pad1_ net-_u1-pad4_ net-_u1-pad3_ net-_u1-pad2_ net-_x1-pad5_ NOR_2
+x2 net-_x1-pad5_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ CMOS_INVTR
+* Control Statements
+
+.ends or_2
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN54L99/or_2_Previous_Values.xml b/library/SubcircuitLibrary/SN54L99/or_2_Previous_Values.xml
new file mode 100644
index 000000000..cddf0d6af
--- /dev/null
+++ b/library/SubcircuitLibrary/SN54L99/or_2_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NOR_2</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x2></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ABT337/NAND_3-cache.lib b/library/SubcircuitLibrary/SN74ABT337/NAND_3-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/NAND_3-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74ABT337/NAND_3.bak b/library/SubcircuitLibrary/SN74ABT337/NAND_3.bak
new file mode 100644
index 000000000..d9890c5d1
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/NAND_3.bak
@@ -0,0 +1,287 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684AF360
+P 5550 2300
+F 0 "SC3" H 5600 2600 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5850 2387 50  0000 R CNN
+F 2 "" H 5550 800 50  0001 C CNN
+F 3 "" H 5550 2300 50  0001 C CNN
+	1    5550 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 684AF39D
+P 5550 3100
+F 0 "SC4" H 5600 3400 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5850 3187 50  0000 R CNN
+F 2 "" H 5550 1600 50  0001 C CNN
+F 3 "" H 5550 3100 50  0001 C CNN
+	1    5550 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC5
+U 1 1 684AF420
+P 5950 3800
+F 0 "SC5" H 6000 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6250 3887 50  0000 R CNN
+F 2 "" H 5950 2300 50  0001 C CNN
+F 3 "" H 5950 3800 50  0001 C CNN
+	1    5950 3800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF50C
+P 4450 4700
+F 0 "SC1" H 4500 5000 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4750 4787 50  0000 R CNN
+F 2 "" H 4450 3200 50  0001 C CNN
+F 3 "" H 4450 4700 50  0001 C CNN
+	1    4450 4700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684AF577
+P 5500 4700
+F 0 "SC2" H 5550 5000 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5800 4787 50  0000 R CNN
+F 2 "" H 5500 3200 50  0001 C CNN
+F 3 "" H 5500 4700 50  0001 C CNN
+	1    5500 4700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC6
+U 1 1 684AF5EC
+P 6450 4700
+F 0 "SC6" H 6500 5000 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6750 4787 50  0000 R CNN
+F 2 "" H 6450 3200 50  0001 C CNN
+F 3 "" H 6450 4700 50  0001 C CNN
+	1    6450 4700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF63F
+P 3700 4000
+F 0 "U1" H 3750 4100 30  0000 C CNN
+F 1 "PORT" H 3700 4000 30  0000 C CNN
+F 2 "" H 3700 4000 60  0000 C CNN
+F 3 "" H 3700 4000 60  0000 C CNN
+	1    3700 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF6CC
+P 4850 3850
+F 0 "U1" H 4900 3950 30  0000 C CNN
+F 1 "PORT" H 4850 3850 30  0000 C CNN
+F 2 "" H 4850 3850 60  0000 C CNN
+F 3 "" H 4850 3850 60  0000 C CNN
+	2    4850 3850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF829
+P 7050 3800
+F 0 "U1" H 7100 3900 30  0000 C CNN
+F 1 "PORT" H 7050 3800 30  0000 C CNN
+F 2 "" H 7050 3800 60  0000 C CNN
+F 3 "" H 7050 3800 60  0000 C CNN
+	5    7050 3800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 684AF94D
+P 7150 4200
+F 0 "U1" H 7200 4300 30  0000 C CNN
+F 1 "PORT" H 7150 4200 30  0000 C CNN
+F 2 "" H 7150 4200 60  0000 C CNN
+F 3 "" H 7150 4200 60  0000 C CNN
+	6    7150 4200
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF9FE
+P 5100 5200
+F 0 "U1" H 5150 5300 30  0000 C CNN
+F 1 "PORT" H 5100 5200 30  0000 C CNN
+F 2 "" H 5100 5200 60  0000 C CNN
+F 3 "" H 5100 5200 60  0000 C CNN
+	3    5100 5200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AFAE6
+P 5500 1750
+F 0 "U1" H 5550 1850 30  0000 C CNN
+F 1 "PORT" H 5500 1750 30  0000 C CNN
+F 2 "" H 5500 1750 60  0000 C CNN
+F 3 "" H 5500 1750 60  0000 C CNN
+	4    5500 1750
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5650 2300 5800 2300
+Wire Wire Line
+	5800 2300 5800 1950
+Wire Wire Line
+	5800 1950 5750 1950
+Wire Wire Line
+	5750 1750 5750 2000
+Connection ~ 5750 1950
+Wire Wire Line
+	5750 2600 5750 2800
+Wire Wire Line
+	5650 3100 5800 3100
+Wire Wire Line
+	5800 3100 5800 2750
+Wire Wire Line
+	5800 2750 5750 2750
+Connection ~ 5750 2750
+Wire Wire Line
+	5750 3500 5750 3400
+Wire Wire Line
+	5850 3800 5700 3800
+Wire Wire Line
+	5700 3800 5700 3450
+Wire Wire Line
+	5700 3450 5750 3450
+Connection ~ 5750 3450
+Wire Wire Line
+	4650 4400 4650 4300
+Wire Wire Line
+	4650 4300 6250 4300
+Wire Wire Line
+	6250 4300 6250 4400
+Wire Wire Line
+	5700 4400 5700 4300
+Connection ~ 5700 4300
+Wire Wire Line
+	5750 4100 5750 4300
+Connection ~ 5750 4300
+Wire Wire Line
+	4650 5000 4650 5050
+Wire Wire Line
+	4650 5050 6250 5050
+Wire Wire Line
+	6250 5050 6250 5000
+Wire Wire Line
+	5700 5000 5700 5050
+Connection ~ 5700 5050
+Wire Wire Line
+	5350 5200 5350 5050
+Connection ~ 5350 5050
+Wire Wire Line
+	4550 4700 4700 4700
+Wire Wire Line
+	4700 4700 4700 5050
+Connection ~ 4700 5050
+Wire Wire Line
+	5600 4700 5750 4700
+Wire Wire Line
+	5750 4700 5750 5050
+Connection ~ 5750 5050
+Wire Wire Line
+	6350 4700 6200 4700
+Wire Wire Line
+	6200 4700 6200 5050
+Connection ~ 6200 5050
+Wire Wire Line
+	4150 2300 4150 4700
+Wire Wire Line
+	3950 4000 4150 4000
+Connection ~ 4150 4000
+Wire Wire Line
+	5250 2300 4150 2300
+Wire Wire Line
+	5250 3100 5200 3100
+Wire Wire Line
+	5200 3100 5200 4700
+Wire Wire Line
+	6250 3800 6800 3800
+Wire Wire Line
+	6750 3800 6750 4700
+Connection ~ 6750 3800
+Wire Wire Line
+	5100 3850 5200 3850
+Connection ~ 5200 3850
+Wire Wire Line
+	6900 4200 5750 4200
+Connection ~ 5750 4200
+$Comp
+L SKY130mode scmode1
+U 1 1 684B00C1
+P 8250 2900
+F 0 "scmode1" H 8250 3050 98  0000 C CNB
+F 1 "SKY130mode" H 8250 2800 118 0000 C CNB
+F 2 "" H 8250 3050 60  0001 C CNN
+F 3 "" H 8250 3050 60  0001 C CNN
+	1    8250 2900
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74ABT337/NAND_3.cir b/library/SubcircuitLibrary/SN74ABT337/NAND_3.cir
new file mode 100644
index 000000000..d9a4458ce
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/NAND_3.cir
@@ -0,0 +1,18 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3/NAND_3.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sun Jul  6 17:55:34 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC3  Net-_SC2-Pad1_ Net-_SC2-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__pfet_01v8		
+SC4  Net-_SC2-Pad1_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__pfet_01v8		
+SC5  Net-_SC2-Pad1_ Net-_SC5-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__pfet_01v8		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC6  Net-_SC1-Pad3_ Net-_SC5-Pad2_ Net-_SC6-Pad3_ Net-_SC6-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC2-Pad2_ Net-_SC1-Pad2_ Net-_SC6-Pad3_ Net-_SC3-Pad3_ Net-_SC2-Pad1_ Net-_SC5-Pad2_ PORT		
+scmode1  SKY130mode		
+SC2  Net-_SC2-Pad1_ Net-_SC2-Pad2_ Net-_SC1-Pad1_ Net-_SC1-Pad1_ sky130_fd_pr__nfet_01v8		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74ABT337/NAND_3.cir.out b/library/SubcircuitLibrary/SN74ABT337/NAND_3.cir.out
new file mode 100644
index 000000000..bcb009b3c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/NAND_3.cir.out
@@ -0,0 +1,26 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_3/nand_3.cir
+
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+xsc3 net-_sc2-pad1_ net-_sc2-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc4 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc2-pad1_ net-_sc5-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc6 net-_sc1-pad3_ net-_sc5-pad2_ net-_sc6-pad3_ net-_sc6-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc2-pad2_ net-_sc1-pad2_ net-_sc6-pad3_ net-_sc3-pad3_ net-_sc2-pad1_ net-_sc5-pad2_ port
+* s c m o d e
+xsc2 net-_sc2-pad1_ net-_sc2-pad2_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74ABT337/NAND_3.pro b/library/SubcircuitLibrary/SN74ABT337/NAND_3.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/NAND_3.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74ABT337/NAND_3.sch b/library/SubcircuitLibrary/SN74ABT337/NAND_3.sch
new file mode 100644
index 000000000..eb96f8eac
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/NAND_3.sch
@@ -0,0 +1,289 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:NAND_3-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684AF360
+P 4200 2350
+F 0 "SC3" H 4250 2650 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4500 2437 50  0000 R CNN
+F 2 "" H 4200 850 50  0001 C CNN
+F 3 "" H 4200 2350 50  0001 C CNN
+	1    4200 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 684AF39D
+P 5250 2350
+F 0 "SC4" H 5300 2650 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5550 2437 50  0000 R CNN
+F 2 "" H 5250 850 50  0001 C CNN
+F 3 "" H 5250 2350 50  0001 C CNN
+	1    5250 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC5
+U 1 1 684AF420
+P 6100 2350
+F 0 "SC5" H 6150 2650 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6400 2437 50  0000 R CNN
+F 2 "" H 6100 850 50  0001 C CNN
+F 3 "" H 6100 2350 50  0001 C CNN
+	1    6100 2350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF50C
+P 5250 4000
+F 0 "SC1" H 5300 4300 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5550 4087 50  0000 R CNN
+F 2 "" H 5250 2500 50  0001 C CNN
+F 3 "" H 5250 4000 50  0001 C CNN
+	1    5250 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC6
+U 1 1 684AF5EC
+P 5650 4700
+F 0 "SC6" H 5700 5000 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5950 4787 50  0000 R CNN
+F 2 "" H 5650 3200 50  0001 C CNN
+F 3 "" H 5650 4700 50  0001 C CNN
+	1    5650 4700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF63F
+P 3450 2350
+F 0 "U1" H 3500 2450 30  0000 C CNN
+F 1 "PORT" H 3450 2350 30  0000 C CNN
+F 2 "" H 3450 2350 60  0000 C CNN
+F 3 "" H 3450 2350 60  0000 C CNN
+	1    3450 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF6CC
+P 4500 4000
+F 0 "U1" H 4550 4100 30  0000 C CNN
+F 1 "PORT" H 4500 4000 30  0000 C CNN
+F 2 "" H 4500 4000 60  0000 C CNN
+F 3 "" H 4500 4000 60  0000 C CNN
+	2    4500 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF829
+P 6300 2800
+F 0 "U1" H 6350 2900 30  0000 C CNN
+F 1 "PORT" H 6300 2800 30  0000 C CNN
+F 2 "" H 6300 2800 60  0000 C CNN
+F 3 "" H 6300 2800 60  0000 C CNN
+	5    6300 2800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 684AF94D
+P 6850 2350
+F 0 "U1" H 6900 2450 30  0000 C CNN
+F 1 "PORT" H 6850 2350 30  0000 C CNN
+F 2 "" H 6850 2350 60  0000 C CNN
+F 3 "" H 6850 2350 60  0000 C CNN
+	6    6850 2350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF9FE
+P 5100 5200
+F 0 "U1" H 5150 5300 30  0000 C CNN
+F 1 "PORT" H 5100 5200 30  0000 C CNN
+F 2 "" H 5100 5200 60  0000 C CNN
+F 3 "" H 5100 5200 60  0000 C CNN
+	3    5100 5200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AFAE6
+P 5500 1750
+F 0 "U1" H 5550 1850 30  0000 C CNN
+F 1 "PORT" H 5500 1750 30  0000 C CNN
+F 2 "" H 5500 1750 60  0000 C CNN
+F 3 "" H 5500 1750 60  0000 C CNN
+	4    5500 1750
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684B00C1
+P 8250 2900
+F 0 "scmode1" H 8250 3050 98  0000 C CNB
+F 1 "SKY130mode" H 8250 2800 118 0000 C CNB
+F 2 "" H 8250 3050 60  0001 C CNN
+F 3 "" H 8250 3050 60  0001 C CNN
+	1    8250 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684AF577
+P 5250 3250
+F 0 "SC2" H 5300 3550 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5550 3337 50  0000 R CNN
+F 2 "" H 5250 1750 50  0001 C CNN
+F 3 "" H 5250 3250 50  0001 C CNN
+	1    5250 3250
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4400 2050 4400 2000
+Wire Wire Line
+	4400 2000 5900 2000
+Wire Wire Line
+	5900 2000 5900 2050
+Wire Wire Line
+	5450 2050 5450 2000
+Connection ~ 5450 2000
+Wire Wire Line
+	5750 1750 5750 2000
+Connection ~ 5750 2000
+Wire Wire Line
+	4300 2350 4450 2350
+Wire Wire Line
+	4450 2350 4450 2000
+Connection ~ 4450 2000
+Wire Wire Line
+	5350 2350 5500 2350
+Wire Wire Line
+	5500 2350 5500 2000
+Connection ~ 5500 2000
+Wire Wire Line
+	6000 2350 5850 2350
+Wire Wire Line
+	5850 2350 5850 2000
+Connection ~ 5850 2000
+Wire Wire Line
+	4400 2650 4400 2700
+Wire Wire Line
+	4400 2700 5900 2700
+Wire Wire Line
+	5900 2700 5900 2650
+Wire Wire Line
+	5450 2650 5450 2950
+Connection ~ 5450 2700
+Wire Wire Line
+	6050 2800 5450 2800
+Connection ~ 5450 2800
+Wire Wire Line
+	3700 2350 3900 2350
+Wire Wire Line
+	3850 2350 3850 3250
+Wire Wire Line
+	3850 3250 4950 3250
+Wire Wire Line
+	4950 2350 4800 2350
+Wire Wire Line
+	4800 2350 4800 4000
+Wire Wire Line
+	4750 4000 4950 4000
+Wire Wire Line
+	5350 3250 5500 3250
+Wire Wire Line
+	5500 3250 5500 3600
+Wire Wire Line
+	5500 3600 5450 3600
+Wire Wire Line
+	5450 3550 5450 3700
+Connection ~ 5450 3600
+Wire Wire Line
+	6400 2350 6600 2350
+Wire Wire Line
+	6450 2350 6450 4700
+Wire Wire Line
+	6450 4700 5950 4700
+Connection ~ 6450 2350
+Wire Wire Line
+	5350 4000 5500 4000
+Wire Wire Line
+	5500 4000 5500 4350
+Wire Wire Line
+	5500 4350 5450 4350
+Wire Wire Line
+	5450 4300 5450 4400
+Connection ~ 5450 4350
+Connection ~ 4800 4000
+Wire Wire Line
+	5450 5000 5450 5200
+Wire Wire Line
+	5450 5200 5350 5200
+Wire Wire Line
+	5550 4700 5400 4700
+Wire Wire Line
+	5400 4700 5400 5050
+Wire Wire Line
+	5400 5050 5450 5050
+Connection ~ 5450 5050
+Connection ~ 3850 2350
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74ABT337/NAND_3.sub b/library/SubcircuitLibrary/SN74ABT337/NAND_3.sub
new file mode 100644
index 000000000..5d17f8353
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/NAND_3.sub
@@ -0,0 +1,20 @@
+* Subcircuit NAND_3
+.subckt NAND_3 net-_sc2-pad2_ net-_sc1-pad2_ net-_sc6-pad3_ net-_sc3-pad3_ net-_sc2-pad1_ net-_sc5-pad2_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_3/nand_3.cir
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+xsc3 net-_sc2-pad1_ net-_sc2-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc4 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc2-pad1_ net-_sc5-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc6 net-_sc1-pad3_ net-_sc5-pad2_ net-_sc6-pad3_ net-_sc6-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+xsc2 net-_sc2-pad1_ net-_sc2-pad2_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* Control Statements
+
+.ends NAND_3
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ABT337/NAND_3_Previous_Values.xml b/library/SubcircuitLibrary/SN74ABT337/NAND_3_Previous_Values.xml
new file mode 100644
index 000000000..c0934485a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/NAND_3_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc3><field>w=3 l=0.15</field></sc3><sc4><field>w=3 l=0.15</field></sc4><sc5><field>w=3 l=0.15</field></sc5><sc1><field>w=1 l=0.15</field></sc1><sc6><field>w=1 l=0.15</field></sc6><sc2><field>w=1 l=0.15</field></sc2></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ABT337/SN74ABT337-cache.lib b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337-cache.lib
new file mode 100644
index 000000000..bec1446a2
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337-cache.lib
@@ -0,0 +1,95 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# TFF_SR
+#
+DEF TFF_SR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "TFF_SR" 50 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 200 350 -200 0 1 0 N
+X Vdd 1 -450 150 200 R 50 50 1 1 I
+X T 2 -450 50 200 R 50 50 1 1 I
+X clk 3 -450 -50 200 R 50 50 1 1 I
+X Gnd 4 550 -150 200 L 50 50 1 1 I
+X set 5 550 150 200 L 50 50 1 1 I
+X Rst 6 -450 -150 200 R 50 50 1 1 I
+X Q 7 550 50 200 L 50 50 1 1 O
+X Q_bar 8 550 -50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# tri_state
+#
+DEF tri_state X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "tri_state" 50 -200 60 H V C CNN
+F2 "" 1450 -500 60 H I C CNN
+F3 "" 1450 -500 60 H I C CNN
+DRAW
+C -50 150 50 0 1 0 N
+P 2 0 1 0 -250 150 250 0 N
+P 3 0 1 0 -250 150 -250 -150 250 0 N
+X in 1 -450 0 200 R 50 50 1 1 I
+X Vdd 2 -450 100 200 R 50 50 1 1 I
+X Gnd 3 -450 -100 200 R 50 50 1 1 I
+X En 4 -50 400 200 D 50 50 1 1 I
+X out 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.bak b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.bak
new file mode 100644
index 000000000..ac9943764
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.bak
@@ -0,0 +1,546 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SN74ABT337-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L TFF_SR X4
+U 1 1 686E156C
+P 3200 6550
+F 0 "X4" H 3200 6550 60  0000 C CNN
+F 1 "TFF_SR" H 3250 6300 60  0000 C CNN
+F 2 "" H 3200 6550 60  0001 C CNN
+F 3 "" H 3200 6550 60  0001 C CNN
+	1    3200 6550
+	1    0    0    -1  
+$EndComp
+$Comp
+L TFF_SR X3
+U 1 1 686E15A5
+P 3200 5850
+F 0 "X3" H 3200 5850 60  0000 C CNN
+F 1 "TFF_SR" H 3250 5600 60  0000 C CNN
+F 2 "" H 3200 5850 60  0001 C CNN
+F 3 "" H 3200 5850 60  0001 C CNN
+	1    3200 5850
+	1    0    0    -1  
+$EndComp
+$Comp
+L TFF_SR X2
+U 1 1 686E1626
+P 3200 5150
+F 0 "X2" H 3200 5150 60  0000 C CNN
+F 1 "TFF_SR" H 3250 4900 60  0000 C CNN
+F 2 "" H 3200 5150 60  0001 C CNN
+F 3 "" H 3200 5150 60  0001 C CNN
+	1    3200 5150
+	1    0    0    -1  
+$EndComp
+$Comp
+L TFF_SR X1
+U 1 1 686E167B
+P 3200 4400
+F 0 "X1" H 3200 4400 60  0000 C CNN
+F 1 "TFF_SR" H 3250 4150 60  0000 C CNN
+F 2 "" H 3200 4400 60  0001 C CNN
+F 3 "" H 3200 4400 60  0001 C CNN
+	1    3200 4400
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3750 6500 4250 6500
+Wire Wire Line
+	4250 6500 4250 6550
+Wire Wire Line
+	4250 6550 4600 6550
+Wire Wire Line
+	3750 5800 4600 5800
+Wire Wire Line
+	3750 5100 4600 5100
+Wire Wire Line
+	3750 4350 4350 4350
+Wire Wire Line
+	4350 4350 4350 4400
+Wire Wire Line
+	4350 4400 4600 4400
+Wire Wire Line
+	2750 4550 2000 4550
+Wire Wire Line
+	2750 5300 2550 5300
+Wire Wire Line
+	2550 4550 2550 6700
+Connection ~ 2550 4550
+Wire Wire Line
+	2550 6000 2750 6000
+Connection ~ 2550 5300
+Wire Wire Line
+	2550 6700 2750 6700
+Connection ~ 2550 6000
+Wire Wire Line
+	2750 4450 2000 4450
+Wire Wire Line
+	2750 5200 2450 5200
+Wire Wire Line
+	2450 1600 2450 6600
+Connection ~ 2450 4450
+Wire Wire Line
+	2450 5900 2750 5900
+Connection ~ 2450 5200
+Wire Wire Line
+	2450 6600 2750 6600
+Connection ~ 2450 5900
+Wire Wire Line
+	4600 3700 2450 3700
+Wire Wire Line
+	4600 3000 2450 3000
+Connection ~ 2450 3700
+Wire Wire Line
+	4600 2300 2450 2300
+Connection ~ 2450 3000
+Wire Wire Line
+	4550 1600 2450 1600
+Connection ~ 2450 2300
+Wire Wire Line
+	4950 1200 1950 1200
+Wire Wire Line
+	5000 1900 4200 1900
+Wire Wire Line
+	4200 1200 4200 6150
+Connection ~ 4200 1200
+Wire Wire Line
+	4200 2600 5000 2600
+Connection ~ 4200 1900
+Wire Wire Line
+	4200 3300 5000 3300
+Connection ~ 4200 2600
+Wire Wire Line
+	4200 4000 5000 4000
+Connection ~ 4200 3300
+Wire Wire Line
+	4200 4700 5000 4700
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+	4600 2200 4350 2200
+Wire Wire Line
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+Connection ~ 4350 4300
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+	2750 6250 4100 6250
+Wire Wire Line
+	4100 6250 4100 6450
+Connection ~ 4350 6450
+Wire Wire Line
+	4550 1700 4450 1700
+Wire Wire Line
+	4450 1700 4450 7000
+Wire Wire Line
+	4450 7000 2000 7000
+Wire Wire Line
+	4600 6650 4450 6650
+Connection ~ 4450 6650
+Wire Wire Line
+	3750 6700 4450 6700
+Connection ~ 4450 6700
+Wire Wire Line
+	4600 5900 4450 5900
+Connection ~ 4450 5900
+Wire Wire Line
+	3750 6000 4450 6000
+Connection ~ 4450 6000
+Wire Wire Line
+	4600 5200 4450 5200
+Connection ~ 4450 5200
+Wire Wire Line
+	3750 5300 4450 5300
+Connection ~ 4450 5300
+Wire Wire Line
+	4600 4500 4450 4500
+Connection ~ 4450 4500
+Wire Wire Line
+	3750 4550 4450 4550
+Connection ~ 4450 4550
+Wire Wire Line
+	4600 3800 4450 3800
+Connection ~ 4450 3800
+Wire Wire Line
+	4600 3100 4450 3100
+Connection ~ 4450 3100
+Wire Wire Line
+	4600 2400 4450 2400
+Connection ~ 4450 2400
+Wire Wire Line
+	2750 5100 2700 5100
+Wire Wire Line
+	2750 5800 2650 5800
+Wire Wire Line
+	2750 6500 2650 6500
+$Comp
+L SKY130mode scmode1
+U 1 1 686E2E86
+P 10300 5750
+F 0 "scmode1" H 10300 5900 98  0000 C CNB
+F 1 "SKY130mode" H 10300 5650 118 0000 C CNB
+F 2 "" H 10300 5900 60  0001 C CNN
+F 3 "" H 10300 5900 60  0001 C CNN
+	1    10300 5750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686E2F88
+P 1700 1200
+F 0 "U1" H 1750 1300 30  0000 C CNN
+F 1 "PORT" H 1700 1200 30  0000 C CNN
+F 2 "" H 1700 1200 60  0000 C CNN
+F 3 "" H 1700 1200 60  0000 C CNN
+	1    1700 1200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686E2FC9
+P 1700 1500
+F 0 "U1" H 1750 1600 30  0000 C CNN
+F 1 "PORT" H 1700 1500 30  0000 C CNN
+F 2 "" H 1700 1500 60  0000 C CNN
+F 3 "" H 1700 1500 60  0000 C CNN
+	2    1700 1500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686E3231
+P 1750 4450
+F 0 "U1" H 1800 4550 30  0000 C CNN
+F 1 "PORT" H 1750 4450 30  0000 C CNN
+F 2 "" H 1750 4450 60  0000 C CNN
+F 3 "" H 1750 4450 60  0000 C CNN
+	3    1750 4450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686E3286
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+F 3 "" H 1750 4550 60  0000 C CNN
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+F 3 "" H 1750 7000 60  0000 C CNN
+	5    1750 7000
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+$Comp
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+F 1 "PORT" H 5700 1600 30  0000 C CNN
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+F 3 "" H 5700 1600 60  0000 C CNN
+	6    5700 1600
+	-1   0    0    -1  
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+F 1 "PORT" H 5750 2300 30  0000 C CNN
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+F 3 "" H 5750 2300 60  0000 C CNN
+	7    5750 2300
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+$Comp
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+F 3 "" H 5750 3000 60  0000 C CNN
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+$Comp
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+F 1 "PORT" H 5750 3700 30  0000 C CNN
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+F 3 "" H 5750 3700 60  0000 C CNN
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+$Comp
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+F 2 "" H 5750 4400 60  0000 C CNN
+F 3 "" H 5750 4400 60  0000 C CNN
+	10   5750 4400
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+F 2 "" H 5750 5100 60  0000 C CNN
+F 3 "" H 5750 5100 60  0000 C CNN
+	11   5750 5100
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+$Comp
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+F 3 "" H 5750 5800 60  0000 C CNN
+	12   5750 5800
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+F 3 "" H 5750 6550 60  0000 C CNN
+	13   5750 6550
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+NoConn ~ 3750 4450
+NoConn ~ 3750 5000
+NoConn ~ 3750 5200
+NoConn ~ 3750 5700
+NoConn ~ 3750 5900
+NoConn ~ 3750 6400
+NoConn ~ 3750 6600
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+F 3 "" H 6450 1100 60  0001 C CNN
+	1    5000 1600
+	1    0    0    -1  
+$EndComp
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+L tri_state X6
+U 1 1 686E8345
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+F 2 "" H 6500 1800 60  0001 C CNN
+F 3 "" H 6500 1800 60  0001 C CNN
+	1    5050 2300
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+$EndComp
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+L tri_state X7
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+F 2 "" H 6500 2500 60  0001 C CNN
+F 3 "" H 6500 2500 60  0001 C CNN
+	1    5050 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L tri_state X8
+U 1 1 686E844B
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+F 1 "tri_state" H 5100 3500 60  0000 C CNN
+F 2 "" H 6500 3200 60  0001 C CNN
+F 3 "" H 6500 3200 60  0001 C CNN
+	1    5050 3700
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+$Comp
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+F 2 "" H 6500 3900 60  0001 C CNN
+F 3 "" H 6500 3900 60  0001 C CNN
+	1    5050 4400
+	1    0    0    -1  
+$EndComp
+$Comp
+L tri_state X10
+U 1 1 686E852F
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+F 2 "" H 6500 4600 60  0001 C CNN
+F 3 "" H 6500 4600 60  0001 C CNN
+	1    5050 5100
+	1    0    0    -1  
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+$Comp
+L tri_state X11
+U 1 1 686E85EE
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+F 2 "" H 6500 5300 60  0001 C CNN
+F 3 "" H 6500 5300 60  0001 C CNN
+	1    5050 5800
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+$Comp
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+U 1 1 686E865B
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+F 2 "" H 6500 6050 60  0001 C CNN
+F 3 "" H 6500 6050 60  0001 C CNN
+	1    5050 6550
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
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+Wire Wire Line
+	2650 6300 2750 6300
+Connection ~ 2750 6300
+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 2750 5650
+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 2750 4950
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 2750 4200
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diff --git a/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.cir b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.cir
new file mode 100644
index 000000000..75fa83172
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.cir
@@ -0,0 +1,24 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Wed Jul  9 20:43:25 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X4  Net-_U1-Pad2_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad5_ ? Net-_U1-Pad4_ Net-_X12-Pad1_ ? TFF_SR		
+X3  Net-_U1-Pad2_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad5_ ? Net-_U1-Pad4_ Net-_X11-Pad1_ ? TFF_SR		
+X2  Net-_U1-Pad2_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad5_ ? Net-_U1-Pad4_ Net-_X10-Pad1_ ? TFF_SR		
+X1  Net-_U1-Pad2_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad5_ ? Net-_U1-Pad4_ Net-_X1-Pad7_ ? TFF_SR		
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad9_ Net-_U1-Pad10_ Net-_U1-Pad11_ Net-_U1-Pad12_ Net-_U1-Pad13_ PORT		
+X5  Net-_U1-Pad3_ Net-_U1-Pad2_ Net-_U1-Pad5_ Net-_U1-Pad1_ Net-_U1-Pad6_ tri_state		
+X6  Net-_U1-Pad3_ Net-_U1-Pad2_ Net-_U1-Pad5_ Net-_U1-Pad1_ Net-_U1-Pad7_ tri_state		
+X7  Net-_U1-Pad3_ Net-_U1-Pad2_ Net-_U1-Pad5_ Net-_U1-Pad1_ Net-_U1-Pad8_ tri_state		
+X8  Net-_U1-Pad3_ Net-_U1-Pad2_ Net-_U1-Pad5_ Net-_U1-Pad1_ Net-_U1-Pad9_ tri_state		
+X9  Net-_X1-Pad7_ Net-_U1-Pad2_ Net-_U1-Pad5_ Net-_U1-Pad1_ Net-_U1-Pad10_ tri_state		
+X10  Net-_X10-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad5_ Net-_U1-Pad1_ Net-_U1-Pad11_ tri_state		
+X11  Net-_X11-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad5_ Net-_U1-Pad1_ Net-_U1-Pad12_ tri_state		
+X12  Net-_X12-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad5_ Net-_U1-Pad1_ Net-_U1-Pad13_ tri_state		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.cir.out b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.cir.out
new file mode 100644
index 000000000..3aa5188f9
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.cir.out
@@ -0,0 +1,34 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/sn74abt337/sn74abt337.cir
+
+.include TFF_SR.sub
+.include tri_state.sub
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+x4 net-_u1-pad2_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad5_ ? net-_u1-pad4_ net-_x12-pad1_ ? TFF_SR
+x3 net-_u1-pad2_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad5_ ? net-_u1-pad4_ net-_x11-pad1_ ? TFF_SR
+x2 net-_u1-pad2_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad5_ ? net-_u1-pad4_ net-_x10-pad1_ ? TFF_SR
+x1 net-_u1-pad2_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad5_ ? net-_u1-pad4_ net-_x1-pad7_ ? TFF_SR
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ port
+x5 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad6_ tri_state
+x6 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad7_ tri_state
+x7 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad8_ tri_state
+x8 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad9_ tri_state
+x9 net-_x1-pad7_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad10_ tri_state
+x10 net-_x10-pad1_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad11_ tri_state
+x11 net-_x11-pad1_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad12_ tri_state
+x12 net-_x12-pad1_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad13_ tri_state
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.pro b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.sch b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.sch
new file mode 100644
index 000000000..0345b9554
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.sch
@@ -0,0 +1,546 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SN74ABT337-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L TFF_SR X4
+U 1 1 686E156C
+P 3200 6550
+F 0 "X4" H 3200 6550 60  0000 C CNN
+F 1 "TFF_SR" H 3250 6300 60  0000 C CNN
+F 2 "" H 3200 6550 60  0001 C CNN
+F 3 "" H 3200 6550 60  0001 C CNN
+	1    3200 6550
+	1    0    0    -1  
+$EndComp
+$Comp
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+U 1 1 686E15A5
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+F 0 "X3" H 3200 5850 60  0000 C CNN
+F 1 "TFF_SR" H 3250 5600 60  0000 C CNN
+F 2 "" H 3200 5850 60  0001 C CNN
+F 3 "" H 3200 5850 60  0001 C CNN
+	1    3200 5850
+	1    0    0    -1  
+$EndComp
+$Comp
+L TFF_SR X2
+U 1 1 686E1626
+P 3200 5150
+F 0 "X2" H 3200 5150 60  0000 C CNN
+F 1 "TFF_SR" H 3250 4900 60  0000 C CNN
+F 2 "" H 3200 5150 60  0001 C CNN
+F 3 "" H 3200 5150 60  0001 C CNN
+	1    3200 5150
+	1    0    0    -1  
+$EndComp
+$Comp
+L TFF_SR X1
+U 1 1 686E167B
+P 3200 4400
+F 0 "X1" H 3200 4400 60  0000 C CNN
+F 1 "TFF_SR" H 3250 4150 60  0000 C CNN
+F 2 "" H 3200 4400 60  0001 C CNN
+F 3 "" H 3200 4400 60  0001 C CNN
+	1    3200 4400
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3750 6500 4250 6500
+Wire Wire Line
+	4250 6500 4250 6550
+Wire Wire Line
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+Wire Wire Line
+	3750 5800 4600 5800
+Wire Wire Line
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+Wire Wire Line
+	3750 4350 4350 4350
+Wire Wire Line
+	4350 4350 4350 4400
+Wire Wire Line
+	4350 4400 4600 4400
+Wire Wire Line
+	2750 4550 2000 4550
+Wire Wire Line
+	2750 5300 2550 5300
+Wire Wire Line
+	2550 4550 2550 6700
+Connection ~ 2550 4550
+Wire Wire Line
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+Connection ~ 2550 5300
+Wire Wire Line
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+Connection ~ 2550 6000
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 2450 4450
+Wire Wire Line
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+Connection ~ 2450 5900
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+Wire Wire Line
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+Connection ~ 2450 3700
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 4200 1200
+Wire Wire Line
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+Connection ~ 4200 1900
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+Connection ~ 4200 2600
+Wire Wire Line
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+Connection ~ 4200 4000
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+Connection ~ 4350 2900
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+Connection ~ 4350 4300
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 4350 6450
+Wire Wire Line
+	4550 1700 4450 1700
+Wire Wire Line
+	4450 1700 4450 7000
+Wire Wire Line
+	4450 7000 2000 7000
+Wire Wire Line
+	4600 6650 4450 6650
+Connection ~ 4450 6650
+Wire Wire Line
+	3750 6700 4450 6700
+Connection ~ 4450 6700
+Wire Wire Line
+	4600 5900 4450 5900
+Connection ~ 4450 5900
+Wire Wire Line
+	3750 6000 4450 6000
+Connection ~ 4450 6000
+Wire Wire Line
+	4600 5200 4450 5200
+Connection ~ 4450 5200
+Wire Wire Line
+	3750 5300 4450 5300
+Connection ~ 4450 5300
+Wire Wire Line
+	4600 4500 4450 4500
+Connection ~ 4450 4500
+Wire Wire Line
+	3750 4550 4450 4550
+Connection ~ 4450 4550
+Wire Wire Line
+	4600 3800 4450 3800
+Connection ~ 4450 3800
+Wire Wire Line
+	4600 3100 4450 3100
+Connection ~ 4450 3100
+Wire Wire Line
+	4600 2400 4450 2400
+Connection ~ 4450 2400
+Wire Wire Line
+	2750 5100 2700 5100
+Wire Wire Line
+	2750 5800 2650 5800
+Wire Wire Line
+	2750 6500 2650 6500
+$Comp
+L SKY130mode scmode1
+U 1 1 686E2E86
+P 1800 3350
+F 0 "scmode1" H 1800 3500 98  0000 C CNB
+F 1 "SKY130mode" H 1800 3250 118 0000 C CNB
+F 2 "" H 1800 3500 60  0001 C CNN
+F 3 "" H 1800 3500 60  0001 C CNN
+	1    1800 3350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686E2F88
+P 1700 1200
+F 0 "U1" H 1750 1300 30  0000 C CNN
+F 1 "PORT" H 1700 1200 30  0000 C CNN
+F 2 "" H 1700 1200 60  0000 C CNN
+F 3 "" H 1700 1200 60  0000 C CNN
+	1    1700 1200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686E2FC9
+P 1700 1500
+F 0 "U1" H 1750 1600 30  0000 C CNN
+F 1 "PORT" H 1700 1500 30  0000 C CNN
+F 2 "" H 1700 1500 60  0000 C CNN
+F 3 "" H 1700 1500 60  0000 C CNN
+	2    1700 1500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686E3231
+P 1750 4450
+F 0 "U1" H 1800 4550 30  0000 C CNN
+F 1 "PORT" H 1750 4450 30  0000 C CNN
+F 2 "" H 1750 4450 60  0000 C CNN
+F 3 "" H 1750 4450 60  0000 C CNN
+	3    1750 4450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686E3286
+P 1750 4550
+F 0 "U1" H 1800 4650 30  0000 C CNN
+F 1 "PORT" H 1750 4550 30  0000 C CNN
+F 2 "" H 1750 4550 60  0000 C CNN
+F 3 "" H 1750 4550 60  0000 C CNN
+	4    1750 4550
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686E3374
+P 1750 7000
+F 0 "U1" H 1800 7100 30  0000 C CNN
+F 1 "PORT" H 1750 7000 30  0000 C CNN
+F 2 "" H 1750 7000 60  0000 C CNN
+F 3 "" H 1750 7000 60  0000 C CNN
+	5    1750 7000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686E3583
+P 5700 1600
+F 0 "U1" H 5750 1700 30  0000 C CNN
+F 1 "PORT" H 5700 1600 30  0000 C CNN
+F 2 "" H 5700 1600 60  0000 C CNN
+F 3 "" H 5700 1600 60  0000 C CNN
+	6    5700 1600
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686E365C
+P 5750 2300
+F 0 "U1" H 5800 2400 30  0000 C CNN
+F 1 "PORT" H 5750 2300 30  0000 C CNN
+F 2 "" H 5750 2300 60  0000 C CNN
+F 3 "" H 5750 2300 60  0000 C CNN
+	7    5750 2300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 8 1 686E38DF
+P 5750 3000
+F 0 "U1" H 5800 3100 30  0000 C CNN
+F 1 "PORT" H 5750 3000 30  0000 C CNN
+F 2 "" H 5750 3000 60  0000 C CNN
+F 3 "" H 5750 3000 60  0000 C CNN
+	8    5750 3000
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 686E3947
+P 5750 3700
+F 0 "U1" H 5800 3800 30  0000 C CNN
+F 1 "PORT" H 5750 3700 30  0000 C CNN
+F 2 "" H 5750 3700 60  0000 C CNN
+F 3 "" H 5750 3700 60  0000 C CNN
+	9    5750 3700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 686E3A12
+P 5750 4400
+F 0 "U1" H 5800 4500 30  0000 C CNN
+F 1 "PORT" H 5750 4400 30  0000 C CNN
+F 2 "" H 5750 4400 60  0000 C CNN
+F 3 "" H 5750 4400 60  0000 C CNN
+	10   5750 4400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 11 1 686E3A91
+P 5750 5100
+F 0 "U1" H 5800 5200 30  0000 C CNN
+F 1 "PORT" H 5750 5100 30  0000 C CNN
+F 2 "" H 5750 5100 60  0000 C CNN
+F 3 "" H 5750 5100 60  0000 C CNN
+	11   5750 5100
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 12 1 686E3B2C
+P 5750 5800
+F 0 "U1" H 5800 5900 30  0000 C CNN
+F 1 "PORT" H 5750 5800 30  0000 C CNN
+F 2 "" H 5750 5800 60  0000 C CNN
+F 3 "" H 5750 5800 60  0000 C CNN
+	12   5750 5800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 13 1 686E3C15
+P 5750 6550
+F 0 "U1" H 5800 6650 30  0000 C CNN
+F 1 "PORT" H 5750 6550 30  0000 C CNN
+F 2 "" H 5750 6550 60  0000 C CNN
+F 3 "" H 5750 6550 60  0000 C CNN
+	13   5750 6550
+	-1   0    0    -1  
+$EndComp
+NoConn ~ 3750 4250
+NoConn ~ 3750 4450
+NoConn ~ 3750 5000
+NoConn ~ 3750 5200
+NoConn ~ 3750 5700
+NoConn ~ 3750 5900
+NoConn ~ 3750 6400
+NoConn ~ 3750 6600
+$Comp
+L tri_state X5
+U 1 1 686E8300
+P 5000 1600
+F 0 "X5" H 5000 1600 60  0000 C CNN
+F 1 "tri_state" H 5050 1400 60  0000 C CNN
+F 2 "" H 6450 1100 60  0001 C CNN
+F 3 "" H 6450 1100 60  0001 C CNN
+	1    5000 1600
+	1    0    0    -1  
+$EndComp
+$Comp
+L tri_state X6
+U 1 1 686E8345
+P 5050 2300
+F 0 "X6" H 5050 2300 60  0000 C CNN
+F 1 "tri_state" H 5100 2100 60  0000 C CNN
+F 2 "" H 6500 1800 60  0001 C CNN
+F 3 "" H 6500 1800 60  0001 C CNN
+	1    5050 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L tri_state X7
+U 1 1 686E83D8
+P 5050 3000
+F 0 "X7" H 5050 3000 60  0000 C CNN
+F 1 "tri_state" H 5100 2800 60  0000 C CNN
+F 2 "" H 6500 2500 60  0001 C CNN
+F 3 "" H 6500 2500 60  0001 C CNN
+	1    5050 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L tri_state X8
+U 1 1 686E844B
+P 5050 3700
+F 0 "X8" H 5050 3700 60  0000 C CNN
+F 1 "tri_state" H 5100 3500 60  0000 C CNN
+F 2 "" H 6500 3200 60  0001 C CNN
+F 3 "" H 6500 3200 60  0001 C CNN
+	1    5050 3700
+	1    0    0    -1  
+$EndComp
+$Comp
+L tri_state X9
+U 1 1 686E84D2
+P 5050 4400
+F 0 "X9" H 5050 4400 60  0000 C CNN
+F 1 "tri_state" H 5100 4200 60  0000 C CNN
+F 2 "" H 6500 3900 60  0001 C CNN
+F 3 "" H 6500 3900 60  0001 C CNN
+	1    5050 4400
+	1    0    0    -1  
+$EndComp
+$Comp
+L tri_state X10
+U 1 1 686E852F
+P 5050 5100
+F 0 "X10" H 5050 5100 60  0000 C CNN
+F 1 "tri_state" H 5100 4900 60  0000 C CNN
+F 2 "" H 6500 4600 60  0001 C CNN
+F 3 "" H 6500 4600 60  0001 C CNN
+	1    5050 5100
+	1    0    0    -1  
+$EndComp
+$Comp
+L tri_state X11
+U 1 1 686E85EE
+P 5050 5800
+F 0 "X11" H 5050 5800 60  0000 C CNN
+F 1 "tri_state" H 5100 5600 60  0000 C CNN
+F 2 "" H 6500 5300 60  0001 C CNN
+F 3 "" H 6500 5300 60  0001 C CNN
+	1    5050 5800
+	1    0    0    -1  
+$EndComp
+$Comp
+L tri_state X12
+U 1 1 686E865B
+P 5050 6550
+F 0 "X12" H 5050 6550 60  0000 C CNN
+F 1 "tri_state" H 5100 6350 60  0000 C CNN
+F 2 "" H 6500 6050 60  0001 C CNN
+F 3 "" H 6500 6050 60  0001 C CNN
+	1    5050 6550
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	2650 6500 2650 6300
+Wire Wire Line
+	2650 6300 2750 6300
+Connection ~ 2750 6300
+Wire Wire Line
+	2650 5800 2650 5650
+Wire Wire Line
+	2650 5650 2750 5650
+Connection ~ 2750 5650
+Wire Wire Line
+	2700 5100 2700 4950
+Wire Wire Line
+	2700 4950 2750 4950
+Connection ~ 2750 4950
+Wire Wire Line
+	2750 4350 2700 4350
+Wire Wire Line
+	2700 4350 2700 4200
+Wire Wire Line
+	2700 4200 2750 4200
+Connection ~ 2750 4200
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.sub b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.sub
new file mode 100644
index 000000000..2db5c09eb
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337.sub
@@ -0,0 +1,28 @@
+* Subcircuit SN74ABT337
+.subckt SN74ABT337 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/sn74abt337/sn74abt337.cir
+.include TFF_SR.sub
+.include tri_state.sub
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+x4 net-_u1-pad2_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad5_ ? net-_u1-pad4_ net-_x12-pad1_ ? TFF_SR
+x3 net-_u1-pad2_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad5_ ? net-_u1-pad4_ net-_x11-pad1_ ? TFF_SR
+x2 net-_u1-pad2_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad5_ ? net-_u1-pad4_ net-_x10-pad1_ ? TFF_SR
+x1 net-_u1-pad2_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad5_ ? net-_u1-pad4_ net-_x1-pad7_ ? TFF_SR
+* s c m o d e
+x5 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad6_ tri_state
+x6 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad7_ tri_state
+x7 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad8_ tri_state
+x8 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad9_ tri_state
+x9 net-_x1-pad7_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad10_ tri_state
+x10 net-_x10-pad1_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad11_ tri_state
+x11 net-_x11-pad1_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad12_ tri_state
+x12 net-_x12-pad1_ net-_u1-pad2_ net-_u1-pad5_ net-_u1-pad1_ net-_u1-pad13_ tri_state
+* Control Statements
+
+.ends SN74ABT337
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ABT337/SN74ABT337_Previous_Values.xml b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337_Previous_Values.xml
new file mode 100644
index 000000000..a30490a42
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/SN74ABT337_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/TFF_SR</field></x4><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/TFF_SR</field></x3><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/TFF_SR</field></x2><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/TFF_SR</field></x1><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/tri_state</field></x5><x6><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/tri_state</field></x6><x7><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/tri_state</field></x7><x8><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/tri_state</field></x8><x9><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/tri_state</field></x9><x10><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/tri_state</field></x10><x11><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/tri_state</field></x11><x12><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/tri_state</field></x12></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ABT337/TFF_SR-cache.lib b/library/SubcircuitLibrary/SN74ABT337/TFF_SR-cache.lib
new file mode 100644
index 000000000..ea3ce275e
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/TFF_SR-cache.lib
@@ -0,0 +1,77 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# NAND_3
+#
+DEF NAND_3 X 0 40 Y Y 1 F N
+F0 "X" 150 0 60 H V C CNN
+F1 "NAND_3" 50 -300 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 100 0 255 787 -787 0 1 0 N 150 250 150 -250
+C 400 0 50 0 1 0 N
+P 2 0 1 0 -250 250 150 250 N
+P 3 0 1 0 -250 250 -250 -250 150 -250 N
+X in1 1 -450 100 200 R 50 50 1 1 I
+X in2 2 -450 0 200 R 50 50 1 1 I
+X Gnd 3 -450 -200 200 R 50 50 1 1 I
+X Vdd 4 -450 200 200 R 50 50 1 1 I
+X out 5 650 0 200 L 50 50 1 1 O
+X in3 6 -450 -100 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74ABT337/TFF_SR.cir b/library/SubcircuitLibrary/SN74ABT337/TFF_SR.cir
new file mode 100644
index 000000000..ccd8c470d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/TFF_SR.cir
@@ -0,0 +1,16 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/TFF_SR/TFF_SR.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Wed Jul  9 11:21:42 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad2_ Net-_U1-Pad8_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_X1-Pad5_ Net-_U1-Pad3_ NAND_3		
+X3  Net-_U1-Pad5_ Net-_X1-Pad5_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad7_ Net-_U1-Pad8_ NAND_3		
+X2  Net-_U1-Pad3_ Net-_U1-Pad7_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_X2-Pad5_ Net-_U1-Pad2_ NAND_3		
+X4  Net-_U1-Pad7_ Net-_X2-Pad5_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad8_ Net-_U1-Pad6_ NAND_3		
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74ABT337/TFF_SR.cir.out b/library/SubcircuitLibrary/SN74ABT337/TFF_SR.cir.out
new file mode 100644
index 000000000..df845ba8f
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/TFF_SR.cir.out
@@ -0,0 +1,25 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/tff_sr/tff_sr.cir
+
+.include NAND_3.sub
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+x1 net-_u1-pad2_ net-_u1-pad8_ net-_u1-pad4_ net-_u1-pad1_ net-_x1-pad5_ net-_u1-pad3_ NAND_3
+x3 net-_u1-pad5_ net-_x1-pad5_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad8_ NAND_3
+x2 net-_u1-pad3_ net-_u1-pad7_ net-_u1-pad4_ net-_u1-pad1_ net-_x2-pad5_ net-_u1-pad2_ NAND_3
+x4 net-_u1-pad7_ net-_x2-pad5_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad8_ net-_u1-pad6_ NAND_3
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74ABT337/TFF_SR.pro b/library/SubcircuitLibrary/SN74ABT337/TFF_SR.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/TFF_SR.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74ABT337/TFF_SR.sch b/library/SubcircuitLibrary/SN74ABT337/TFF_SR.sch
new file mode 100644
index 000000000..f777e5c3c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/TFF_SR.sch
@@ -0,0 +1,301 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L NAND_3 X1
+U 1 1 686E01E6
+P 4550 2450
+F 0 "X1" H 4700 2450 60  0000 C CNN
+F 1 "NAND_3" H 4600 2150 60  0000 C CNN
+F 2 "" H 4550 2450 60  0001 C CNN
+F 3 "" H 4550 2450 60  0001 C CNN
+	1    4550 2450
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_3 X3
+U 1 1 686E0269
+P 6600 2450
+F 0 "X3" H 6750 2450 60  0000 C CNN
+F 1 "NAND_3" H 6650 2150 60  0000 C CNN
+F 2 "" H 6600 2450 60  0001 C CNN
+F 3 "" H 6600 2450 60  0001 C CNN
+	1    6600 2450
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_3 X2
+U 1 1 686E03FC
+P 4550 3400
+F 0 "X2" H 4700 3400 60  0000 C CNN
+F 1 "NAND_3" H 4600 3100 60  0000 C CNN
+F 2 "" H 4550 3400 60  0001 C CNN
+F 3 "" H 4550 3400 60  0001 C CNN
+	1    4550 3400
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_3 X4
+U 1 1 686E047D
+P 6600 3400
+F 0 "X4" H 6750 3400 60  0000 C CNN
+F 1 "NAND_3" H 6650 3100 60  0000 C CNN
+F 2 "" H 6600 3400 60  0001 C CNN
+F 3 "" H 6600 3400 60  0001 C CNN
+	1    6600 3400
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 686E050A
+P 10400 4900
+F 0 "scmode1" H 10400 5050 98  0000 C CNB
+F 1 "SKY130mode" H 10400 4800 118 0000 C CNB
+F 2 "" H 10400 5050 60  0001 C CNN
+F 3 "" H 10400 5050 60  0001 C CNN
+	1    10400 4900
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4100 2550 3900 2550
+Wire Wire Line
+	3900 2550 3900 3300
+Wire Wire Line
+	3900 3300 4100 3300
+Wire Wire Line
+	4100 2350 3850 2350
+Wire Wire Line
+	3850 2350 3850 3500
+Wire Wire Line
+	3850 2750 3200 2750
+Connection ~ 3850 2750
+Wire Wire Line
+	3900 2900 3200 2900
+Connection ~ 3900 2900
+Wire Wire Line
+	3850 3500 4100 3500
+Wire Wire Line
+	6150 2350 5950 2350
+Wire Wire Line
+	5950 2350 5950 1800
+Wire Wire Line
+	6150 3500 5950 3500
+Wire Wire Line
+	5950 3500 5950 3950
+Wire Wire Line
+	6150 2550 6050 2550
+Wire Wire Line
+	6050 2550 6050 2750
+Wire Wire Line
+	4000 2750 7350 2750
+Wire Wire Line
+	7350 2750 7350 3400
+Wire Wire Line
+	7250 3400 7700 3400
+Wire Wire Line
+	6150 3300 6050 3300
+Wire Wire Line
+	6050 3300 6050 3100
+Wire Wire Line
+	4000 3100 7350 3100
+Wire Wire Line
+	7350 3100 7350 2450
+Wire Wire Line
+	7250 2450 7700 2450
+Wire Wire Line
+	5200 2450 6150 2450
+Wire Wire Line
+	5200 3400 6150 3400
+Wire Wire Line
+	4100 2450 4000 2450
+Wire Wire Line
+	4000 2450 4000 2750
+Connection ~ 6050 2750
+Wire Wire Line
+	4100 3400 4000 3400
+Wire Wire Line
+	4000 3400 4000 3100
+Connection ~ 6050 3100
+Wire Wire Line
+	4100 2250 3200 2250
+Wire Wire Line
+	6150 2250 6150 2150
+Wire Wire Line
+	6150 2150 4000 2150
+Wire Wire Line
+	4000 2150 4000 2250
+Connection ~ 4000 2250
+Wire Wire Line
+	4100 3600 3200 3600
+Wire Wire Line
+	6150 3600 6150 3750
+Wire Wire Line
+	6150 3750 3850 3750
+Wire Wire Line
+	3850 3750 3850 3550
+Connection ~ 3850 3600
+Wire Wire Line
+	6150 3200 5850 3200
+Wire Wire Line
+	5850 3200 5850 2150
+Connection ~ 5850 2150
+Wire Wire Line
+	4100 3200 3950 3200
+Wire Wire Line
+	3950 3200 3950 2250
+Wire Wire Line
+	3950 2250 4000 2250
+Wire Wire Line
+	6150 2650 5750 2650
+Wire Wire Line
+	5750 2650 5750 3750
+Connection ~ 5750 3750
+Wire Wire Line
+	4100 2650 3800 2650
+Wire Wire Line
+	3800 2650 3800 3550
+Wire Wire Line
+	3800 3550 3850 3550
+Connection ~ 7350 2450
+Connection ~ 7350 3400
+$Comp
+L PORT U1
+U 1 1 686E09C4
+P 2950 2250
+F 0 "U1" H 3000 2350 30  0000 C CNN
+F 1 "PORT" H 2950 2250 30  0000 C CNN
+F 2 "" H 2950 2250 60  0000 C CNN
+F 3 "" H 2950 2250 60  0000 C CNN
+	1    2950 2250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686E0A05
+P 2950 2750
+F 0 "U1" H 3000 2850 30  0000 C CNN
+F 1 "PORT" H 2950 2750 30  0000 C CNN
+F 2 "" H 2950 2750 60  0000 C CNN
+F 3 "" H 2950 2750 60  0000 C CNN
+	2    2950 2750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686E0A30
+P 2950 2900
+F 0 "U1" H 3000 3000 30  0000 C CNN
+F 1 "PORT" H 2950 2900 30  0000 C CNN
+F 2 "" H 2950 2900 60  0000 C CNN
+F 3 "" H 2950 2900 60  0000 C CNN
+	3    2950 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686E0A61
+P 2950 3600
+F 0 "U1" H 3000 3700 30  0000 C CNN
+F 1 "PORT" H 2950 3600 30  0000 C CNN
+F 2 "" H 2950 3600 60  0000 C CNN
+F 3 "" H 2950 3600 60  0000 C CNN
+	4    2950 3600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686E0AA4
+P 5700 1800
+F 0 "U1" H 5750 1900 30  0000 C CNN
+F 1 "PORT" H 5700 1800 30  0000 C CNN
+F 2 "" H 5700 1800 60  0000 C CNN
+F 3 "" H 5700 1800 60  0000 C CNN
+	5    5700 1800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686E0AE1
+P 5700 3950
+F 0 "U1" H 5750 4050 30  0000 C CNN
+F 1 "PORT" H 5700 3950 30  0000 C CNN
+F 2 "" H 5700 3950 60  0000 C CNN
+F 3 "" H 5700 3950 60  0000 C CNN
+	6    5700 3950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686E0B10
+P 7950 2450
+F 0 "U1" H 8000 2550 30  0000 C CNN
+F 1 "PORT" H 7950 2450 30  0000 C CNN
+F 2 "" H 7950 2450 60  0000 C CNN
+F 3 "" H 7950 2450 60  0000 C CNN
+	7    7950 2450
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 8 1 686E0BAD
+P 7950 3400
+F 0 "U1" H 8000 3500 30  0000 C CNN
+F 1 "PORT" H 7950 3400 30  0000 C CNN
+F 2 "" H 7950 3400 60  0000 C CNN
+F 3 "" H 7950 3400 60  0000 C CNN
+	8    7950 3400
+	-1   0    0    1   
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74ABT337/TFF_SR.sub b/library/SubcircuitLibrary/SN74ABT337/TFF_SR.sub
new file mode 100644
index 000000000..d099db6b1
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/TFF_SR.sub
@@ -0,0 +1,19 @@
+* Subcircuit TFF_SR
+.subckt TFF_SR net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/tff_sr/tff_sr.cir
+.include NAND_3.sub
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+x1 net-_u1-pad2_ net-_u1-pad8_ net-_u1-pad4_ net-_u1-pad1_ net-_x1-pad5_ net-_u1-pad3_ NAND_3
+x3 net-_u1-pad5_ net-_x1-pad5_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad8_ NAND_3
+x2 net-_u1-pad3_ net-_u1-pad7_ net-_u1-pad4_ net-_u1-pad1_ net-_x2-pad5_ net-_u1-pad2_ NAND_3
+x4 net-_u1-pad7_ net-_x2-pad5_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad8_ net-_u1-pad6_ NAND_3
+* s c m o d e
+* Control Statements
+
+.ends TFF_SR
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ABT337/TFF_SR_Previous_Values.xml b/library/SubcircuitLibrary/SN74ABT337/TFF_SR_Previous_Values.xml
new file mode 100644
index 000000000..d8e2f2340
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/TFF_SR_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x1><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x3><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x2><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x4></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ABT337/analysis b/library/SubcircuitLibrary/SN74ABT337/analysis
new file mode 100644
index 000000000..ebd5c0a94
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/analysis
@@ -0,0 +1 @@
+.tran 0e-00 0e-00 0e-00
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ABT337/tri_state-cache.lib b/library/SubcircuitLibrary/SN74ABT337/tri_state-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/tri_state-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74ABT337/tri_state.bak b/library/SubcircuitLibrary/SN74ABT337/tri_state.bak
new file mode 100644
index 000000000..ead3208dc
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/tri_state.bak
@@ -0,0 +1,194 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 686E04ED
+P 5150 2450
+F 0 "SC1" H 5200 2750 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5450 2537 50  0000 R CNN
+F 2 "" H 5150 950 50  0001 C CNN
+F 3 "" H 5150 2450 50  0001 C CNN
+	1    5150 2450
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 686E0554
+P 5150 3250
+F 0 "SC2" H 5200 3550 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5450 3337 50  0000 R CNN
+F 2 "" H 5150 1750 50  0001 C CNN
+F 3 "" H 5150 3250 50  0001 C CNN
+	1    5150 3250
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 686E0577
+P 5950 2600
+F 0 "SC3" H 6000 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6250 2687 50  0000 R CNN
+F 2 "" H 5950 1100 50  0001 C CNN
+F 3 "" H 5950 2600 50  0001 C CNN
+	1    5950 2600
+	0    -1   1    0   
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 686E05B6
+P 9300 2250
+F 0 "scmode1" H 9300 2400 98  0000 C CNB
+F 1 "SKY130mode" H 9300 2150 118 0000 C CNB
+F 2 "" H 9300 2400 60  0001 C CNN
+F 3 "" H 9300 2400 60  0001 C CNN
+	1    9300 2250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686E061D
+P 4200 2800
+F 0 "U1" H 4250 2900 30  0000 C CNN
+F 1 "PORT" H 4200 2800 30  0000 C CNN
+F 2 "" H 4200 2800 60  0000 C CNN
+F 3 "" H 4200 2800 60  0000 C CNN
+	1    4200 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686E069C
+P 5050 1900
+F 0 "U1" H 5100 2000 30  0000 C CNN
+F 1 "PORT" H 5050 1900 30  0000 C CNN
+F 2 "" H 5050 1900 60  0000 C CNN
+F 3 "" H 5050 1900 60  0000 C CNN
+	2    5050 1900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686E0725
+P 5100 3750
+F 0 "U1" H 5150 3850 30  0000 C CNN
+F 1 "PORT" H 5100 3750 30  0000 C CNN
+F 2 "" H 5100 3750 60  0000 C CNN
+F 3 "" H 5100 3750 60  0000 C CNN
+	3    5100 3750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686E0750
+P 6800 2800
+F 0 "U1" H 6850 2900 30  0000 C CNN
+F 1 "PORT" H 6800 2800 30  0000 C CNN
+F 2 "" H 6800 2800 60  0000 C CNN
+F 3 "" H 6800 2800 60  0000 C CNN
+	5    6800 2800
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686E0793
+P 6200 2150
+F 0 "U1" H 6250 2250 30  0000 C CNN
+F 1 "PORT" H 6200 2150 30  0000 C CNN
+F 2 "" H 6200 2150 60  0000 C CNN
+F 3 "" H 6200 2150 60  0000 C CNN
+	4    6200 2150
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	4850 2450 4850 3250
+Wire Wire Line
+	4450 2800 4850 2800
+Connection ~ 4850 2800
+Wire Wire Line
+	5350 2750 5350 2950
+Wire Wire Line
+	5400 2450 5250 2450
+Wire Wire Line
+	5400 1900 5400 2450
+Wire Wire Line
+	5400 2150 5350 2150
+Wire Wire Line
+	5300 1900 5400 1900
+Connection ~ 5400 2150
+Wire Wire Line
+	5250 3250 5400 3250
+Wire Wire Line
+	5400 3250 5400 3750
+Wire Wire Line
+	5400 3550 5350 3550
+Wire Wire Line
+	5400 3750 5350 3750
+Connection ~ 5400 3550
+Wire Wire Line
+	5650 2800 5350 2800
+Connection ~ 5350 2800
+Wire Wire Line
+	5950 2850 5950 2700
+Wire Wire Line
+	5550 2850 5950 2850
+Wire Wire Line
+	5550 2850 5550 2800
+Connection ~ 5550 2800
+Wire Wire Line
+	6250 2800 6550 2800
+Wire Wire Line
+	5950 2300 5950 2150
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74ABT337/tri_state.cir b/library/SubcircuitLibrary/SN74ABT337/tri_state.cir
new file mode 100644
index 000000000..9a1bd9419
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/tri_state.cir
@@ -0,0 +1,15 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/tri_state/tri_state.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Wed Jul  9 20:18:58 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+scmode1  SKY130mode		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC3-Pad2_ Net-_SC3-Pad1_ PORT		
+SC3  Net-_SC3-Pad1_ Net-_SC3-Pad2_ Net-_SC1-Pad1_ Net-_SC1-Pad1_ sky130_fd_pr__nfet_01v8		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74ABT337/tri_state.cir.out b/library/SubcircuitLibrary/SN74ABT337/tri_state.cir.out
new file mode 100644
index 000000000..31969d0e5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/tri_state.cir.out
@@ -0,0 +1,23 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/tri_state/tri_state.cir
+
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc3-pad2_ net-_sc3-pad1_ port
+xsc3 net-_sc3-pad1_ net-_sc3-pad2_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74ABT337/tri_state.pro b/library/SubcircuitLibrary/SN74ABT337/tri_state.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/tri_state.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74ABT337/tri_state.sch b/library/SubcircuitLibrary/SN74ABT337/tri_state.sch
new file mode 100644
index 000000000..33449dcff
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/tri_state.sch
@@ -0,0 +1,195 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:tri_state-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 686E04ED
+P 5150 2450
+F 0 "SC1" H 5200 2750 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5450 2537 50  0000 R CNN
+F 2 "" H 5150 950 50  0001 C CNN
+F 3 "" H 5150 2450 50  0001 C CNN
+	1    5150 2450
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 686E0554
+P 5150 3250
+F 0 "SC2" H 5200 3550 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5450 3337 50  0000 R CNN
+F 2 "" H 5150 1750 50  0001 C CNN
+F 3 "" H 5150 3250 50  0001 C CNN
+	1    5150 3250
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 686E05B6
+P 9300 2250
+F 0 "scmode1" H 9300 2400 98  0000 C CNB
+F 1 "SKY130mode" H 9300 2150 118 0000 C CNB
+F 2 "" H 9300 2400 60  0001 C CNN
+F 3 "" H 9300 2400 60  0001 C CNN
+	1    9300 2250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686E061D
+P 4200 2800
+F 0 "U1" H 4250 2900 30  0000 C CNN
+F 1 "PORT" H 4200 2800 30  0000 C CNN
+F 2 "" H 4200 2800 60  0000 C CNN
+F 3 "" H 4200 2800 60  0000 C CNN
+	1    4200 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686E069C
+P 5050 1900
+F 0 "U1" H 5100 2000 30  0000 C CNN
+F 1 "PORT" H 5050 1900 30  0000 C CNN
+F 2 "" H 5050 1900 60  0000 C CNN
+F 3 "" H 5050 1900 60  0000 C CNN
+	2    5050 1900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686E0725
+P 5100 3750
+F 0 "U1" H 5150 3850 30  0000 C CNN
+F 1 "PORT" H 5100 3750 30  0000 C CNN
+F 2 "" H 5100 3750 60  0000 C CNN
+F 3 "" H 5100 3750 60  0000 C CNN
+	3    5100 3750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686E0750
+P 6800 2800
+F 0 "U1" H 6850 2900 30  0000 C CNN
+F 1 "PORT" H 6800 2800 30  0000 C CNN
+F 2 "" H 6800 2800 60  0000 C CNN
+F 3 "" H 6800 2800 60  0000 C CNN
+	5    6800 2800
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686E0793
+P 6200 2150
+F 0 "U1" H 6250 2250 30  0000 C CNN
+F 1 "PORT" H 6200 2150 30  0000 C CNN
+F 2 "" H 6200 2150 60  0000 C CNN
+F 3 "" H 6200 2150 60  0000 C CNN
+	4    6200 2150
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	4850 2450 4850 3250
+Wire Wire Line
+	4450 2800 4850 2800
+Connection ~ 4850 2800
+Wire Wire Line
+	5350 2750 5350 2950
+Wire Wire Line
+	5400 2450 5250 2450
+Wire Wire Line
+	5400 1900 5400 2450
+Wire Wire Line
+	5400 2150 5350 2150
+Wire Wire Line
+	5300 1900 5400 1900
+Connection ~ 5400 2150
+Wire Wire Line
+	5250 3250 5400 3250
+Wire Wire Line
+	5400 3250 5400 3750
+Wire Wire Line
+	5400 3550 5350 3550
+Wire Wire Line
+	5400 3750 5350 3750
+Connection ~ 5400 3550
+Wire Wire Line
+	5650 2800 5350 2800
+Connection ~ 5350 2800
+Wire Wire Line
+	5950 2850 5950 2700
+Wire Wire Line
+	5550 2850 5950 2850
+Wire Wire Line
+	5550 2850 5550 2800
+Connection ~ 5550 2800
+Wire Wire Line
+	6250 2800 6550 2800
+Wire Wire Line
+	5950 2300 5950 2150
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 686E7F5A
+P 5950 2600
+F 0 "SC3" H 6000 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6250 2687 50  0000 R CNN
+F 2 "" H 5950 1100 50  0001 C CNN
+F 3 "" H 5950 2600 50  0001 C CNN
+	1    5950 2600
+	0    1    1    0   
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74ABT337/tri_state.sub b/library/SubcircuitLibrary/SN74ABT337/tri_state.sub
new file mode 100644
index 000000000..9669589c3
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/tri_state.sub
@@ -0,0 +1,17 @@
+* Subcircuit tri_state
+.subckt tri_state net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc3-pad2_ net-_sc3-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/tri_state/tri_state.cir
+.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__linear.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__r+c.model.spice"
+.include "/usr/share/local/sky130_fd_pr/models/sky130_fd_pr__model__inductors.model.spice"
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+xsc3 net-_sc3-pad1_ net-_sc3-pad2_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* Control Statements
+
+.ends tri_state
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ABT337/tri_state_Previous_Values.xml b/library/SubcircuitLibrary/SN74ABT337/tri_state_Previous_Values.xml
new file mode 100644
index 000000000..bba801349
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ABT337/tri_state_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2><sc3><field>w=1 l=0.15</field></sc3></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/3_in_and-cache.lib b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.cir b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.cir
new file mode 100644
index 000000000..a1633ce81
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.cir
@@ -0,0 +1,20 @@
+* H:\esim\eSim\library\SubcircuitLibrary\3_in_and\3_in_and.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 07/16/25 13:08:42
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC2-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC6  Net-_SC1-Pad1_ Net-_SC5-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC3  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad4_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC3-Pad3_ Net-_SC2-Pad2_ Net-_SC4-Pad3_ Net-_SC3-Pad4_ sky130_fd_pr__nfet_01v8		
+SC5  Net-_SC4-Pad3_ Net-_SC5-Pad2_ Net-_SC3-Pad4_ Net-_SC3-Pad4_ sky130_fd_pr__nfet_01v8		
+SC7  Net-_SC1-Pad1_ Net-_SC1-Pad1_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC8  Net-_SC1-Pad1_ Net-_SC1-Pad1_ Net-_SC3-Pad4_ Net-_SC3-Pad4_ sky130_fd_pr__nfet_01v8		
+scmode1  SKY130mode		
+U1  Net-_SC1-Pad2_ Net-_SC2-Pad2_ Net-_SC1-Pad3_ Net-_SC3-Pad4_ Net-_SC5-Pad2_ Net-_SC1-Pad1_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.cir.out b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.cir.out
new file mode 100644
index 000000000..e7d08eafc
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.cir.out
@@ -0,0 +1,28 @@
+* h:\esim\esim\library\subcircuitlibrary\3_in_and\3_in_and.cir
+
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__r+c.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__linear.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__inductors.model.spice"
+.lib "H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice" tt
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__pnp.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc6 net-_sc1-pad1_ net-_sc5-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc3-pad3_ net-_sc2-pad2_ net-_sc4-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc5 net-_sc4-pad3_ net-_sc5-pad2_ net-_sc3-pad4_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc7 net-_sc1-pad1_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc8 net-_sc1-pad1_ net-_sc1-pad1_ net-_sc3-pad4_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* u1  net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc3-pad4_ net-_sc5-pad2_ net-_sc1-pad1_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.pro b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.sch b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.sch
new file mode 100644
index 000000000..413d03374
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.sch
@@ -0,0 +1,324 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 685EFB75
+P 4650 2000
+F 0 "SC1" H 4700 2300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4950 2087 50  0000 R CNN
+F 2 "" H 4650 500 50  0001 C CNN
+F 3 "" H 4650 2000 50  0001 C CNN
+	1    4650 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 685EFBB1
+P 6200 2000
+F 0 "SC2" H 6250 2300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6500 2087 50  0000 R CNN
+F 2 "" H 6200 500 50  0001 C CNN
+F 3 "" H 6200 2000 50  0001 C CNN
+	1    6200 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC6
+U 1 1 685EFC40
+P 7750 2000
+F 0 "SC6" H 7800 2300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 8050 2087 50  0000 R CNN
+F 2 "" H 7750 500 50  0001 C CNN
+F 3 "" H 7750 2000 50  0001 C CNN
+	1    7750 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 685EFDF8
+P 6200 2950
+F 0 "SC3" H 6250 3250 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6500 3037 50  0000 R CNN
+F 2 "" H 6200 1450 50  0001 C CNN
+F 3 "" H 6200 2950 50  0001 C CNN
+	1    6200 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 685EFE69
+P 6200 3750
+F 0 "SC4" H 6250 4050 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6500 3837 50  0000 R CNN
+F 2 "" H 6200 2250 50  0001 C CNN
+F 3 "" H 6200 3750 50  0001 C CNN
+	1    6200 3750
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC5
+U 1 1 685EFEFC
+P 6600 4450
+F 0 "SC5" H 6650 4750 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6900 4537 50  0000 R CNN
+F 2 "" H 6600 2950 50  0001 C CNN
+F 3 "" H 6600 4450 50  0001 C CNN
+	1    6600 4450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC7
+U 1 1 685F0235
+P 8600 2000
+F 0 "SC7" H 8650 2300 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 8900 2087 50  0000 R CNN
+F 2 "" H 8600 500 50  0001 C CNN
+F 3 "" H 8600 2000 50  0001 C CNN
+	1    8600 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC8
+U 1 1 685F02AE
+P 8600 4500
+F 0 "SC8" H 8650 4800 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 8900 4587 50  0000 R CNN
+F 2 "" H 8600 3000 50  0001 C CNN
+F 3 "" H 8600 4500 50  0001 C CNN
+	1    8600 4500
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 685F03F9
+P 10450 6050
+F 0 "scmode1" H 10450 6200 98  0000 C CNB
+F 1 "SKY130mode" H 10450 5950 118 0000 C CNB
+F 2 "" H 10450 6200 60  0001 C CNN
+F 3 "" H 10450 6200 60  0001 C CNN
+	1    10450 6050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 685F046F
+P 3800 2000
+F 0 "U1" H 3850 2100 30  0000 C CNN
+F 1 "PORT" H 3800 2000 30  0000 C CNN
+F 2 "" H 3800 2000 60  0000 C CNN
+F 3 "" H 3800 2000 60  0000 C CNN
+	1    3800 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685F04F8
+P 5400 2000
+F 0 "U1" H 5450 2100 30  0000 C CNN
+F 1 "PORT" H 5400 2000 30  0000 C CNN
+F 2 "" H 5400 2000 60  0000 C CNN
+F 3 "" H 5400 2000 60  0000 C CNN
+	2    5400 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685F05AF
+P 6950 2000
+F 0 "U1" H 7000 2100 30  0000 C CNN
+F 1 "PORT" H 6950 2000 30  0000 C CNN
+F 2 "" H 6950 2000 60  0000 C CNN
+F 3 "" H 6950 2000 60  0000 C CNN
+	5    6950 2000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 685F0660
+P 9350 2950
+F 0 "U1" H 9400 3050 30  0000 C CNN
+F 1 "PORT" H 9350 2950 30  0000 C CNN
+F 2 "" H 9350 2950 60  0000 C CNN
+F 3 "" H 9350 2950 60  0000 C CNN
+	6    9350 2950
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685F087C
+P 6150 1250
+F 0 "U1" H 6200 1350 30  0000 C CNN
+F 1 "PORT" H 6150 1250 30  0000 C CNN
+F 2 "" H 6150 1250 60  0000 C CNN
+F 3 "" H 6150 1250 60  0000 C CNN
+	3    6150 1250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685F095F
+P 6150 5100
+F 0 "U1" H 6200 5200 30  0000 C CNN
+F 1 "PORT" H 6150 5100 30  0000 C CNN
+F 2 "" H 6150 5100 60  0000 C CNN
+F 3 "" H 6150 5100 60  0000 C CNN
+	4    6150 5100
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4850 1700 4850 1600
+Wire Wire Line
+	4850 1600 8850 1600
+Wire Wire Line
+	8800 1600 8800 1700
+Wire Wire Line
+	6400 1250 6400 1700
+Connection ~ 6400 1600
+Wire Wire Line
+	7950 1700 7950 1600
+Connection ~ 7950 1600
+Wire Wire Line
+	4850 2300 4850 2350
+Wire Wire Line
+	4850 2350 8800 2350
+Wire Wire Line
+	8800 2300 8800 4200
+Wire Wire Line
+	6400 2300 6400 2650
+Connection ~ 6400 2350
+Wire Wire Line
+	7950 2300 7950 2350
+Connection ~ 7950 2350
+Wire Wire Line
+	4750 2000 4950 2000
+Wire Wire Line
+	4950 2000 4950 1600
+Connection ~ 4950 1600
+Wire Wire Line
+	6300 2000 6500 2000
+Wire Wire Line
+	6500 2000 6500 1600
+Connection ~ 6500 1600
+Wire Wire Line
+	7850 2000 8050 2000
+Wire Wire Line
+	8050 2000 8050 1600
+Connection ~ 8050 1600
+Wire Wire Line
+	8700 2000 8850 2000
+Wire Wire Line
+	8850 2000 8850 1600
+Connection ~ 8800 1600
+Wire Wire Line
+	4350 2000 4050 2000
+Wire Wire Line
+	5900 2000 5650 2000
+Wire Wire Line
+	7450 2000 7200 2000
+Wire Wire Line
+	8300 2000 8300 4500
+Wire Wire Line
+	8300 2450 6400 2450
+Connection ~ 6400 2450
+Wire Wire Line
+	5900 2950 4250 2950
+Wire Wire Line
+	4250 2950 4250 2000
+Connection ~ 4250 2000
+Wire Wire Line
+	5900 3750 5700 3750
+Wire Wire Line
+	5700 3750 5700 2000
+Connection ~ 5700 2000
+Wire Wire Line
+	6900 4450 7350 4450
+Wire Wire Line
+	7350 4450 7350 2000
+Connection ~ 7350 2000
+Wire Wire Line
+	6400 5100 6400 4750
+Wire Wire Line
+	8700 4500 8900 4500
+Wire Wire Line
+	8900 4500 8900 4900
+Wire Wire Line
+	8900 4900 6350 4900
+Connection ~ 6400 4900
+Wire Wire Line
+	8800 4800 8800 4900
+Connection ~ 8800 4900
+Wire Wire Line
+	6500 4450 6350 4450
+Wire Wire Line
+	6350 4450 6350 4900
+Wire Wire Line
+	6400 4050 6400 4150
+Wire Wire Line
+	6300 3750 7000 3750
+Wire Wire Line
+	7000 2950 7000 4900
+Connection ~ 7000 4900
+Wire Wire Line
+	6400 3250 6400 3450
+Wire Wire Line
+	6300 2950 7000 2950
+Connection ~ 7000 3750
+Connection ~ 8800 2350
+Connection ~ 8300 2450
+Wire Wire Line
+	9100 2950 8800 2950
+Connection ~ 8800 2950
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.sub b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.sub
new file mode 100644
index 000000000..a88c47594
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and.sub
@@ -0,0 +1,22 @@
+* Subcircuit 3_in_and
+.subckt 3_in_and net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc3-pad4_ net-_sc5-pad2_ net-_sc1-pad1_ 
+* h:\esim\esim\library\subcircuitlibrary\3_in_and\3_in_and.cir
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__r+c.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__linear.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__inductors.model.spice"
+.lib "H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice" tt
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__pnp.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc6 net-_sc1-pad1_ net-_sc5-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc3-pad3_ net-_sc2-pad2_ net-_sc4-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc5 net-_sc4-pad3_ net-_sc5-pad2_ net-_sc3-pad4_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc7 net-_sc1-pad1_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc8 net-_sc1-pad1_ net-_sc1-pad1_ net-_sc3-pad4_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends 3_in_and
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/3_in_and_Previous_Values.xml b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and_Previous_Values.xml
new file mode 100644
index 000000000..f78519633
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/3_in_and_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=3 l=0.15</field></sc2><sc6><field>w=3 l=0.15</field></sc6><sc3><field>w=1 l=0.15</field></sc3><sc4><field>w=1 l=0.15</field></sc4><sc5><field>w=1 l=0.15</field></sc5><sc7><field>w=3 l=0.15</field></sc7><sc8><field>w=1 l=0.15</field></sc8></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR-cache.lib b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.cir b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.cir
new file mode 100644
index 000000000..798338152
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.cir
@@ -0,0 +1,14 @@
+* H:\esim\eSim\library\SubcircuitLibrary\CMOS_INVTR\CMOS_INVTR.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 07/12/25 16:02:08
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.cir.out b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.cir.out
new file mode 100644
index 000000000..268de8701
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.cir.out
@@ -0,0 +1,16 @@
+* h:\esim\esim\library\subcircuitlibrary\cmos_invtr\cmos_invtr.cir
+
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.pro b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.sch b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.sch
new file mode 100644
index 000000000..aa7a7ee81
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.sch
@@ -0,0 +1,161 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 684B982F
+P 5350 2950
+F 0 "SC1" H 5400 3250 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5650 3037 50  0000 R CNN
+F 2 "" H 5350 1450 50  0001 C CNN
+F 3 "" H 5350 2950 50  0001 C CNN
+	1    5350 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684B9856
+P 5350 3800
+F 0 "SC2" H 5400 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5650 3887 50  0000 R CNN
+F 2 "" H 5350 2300 50  0001 C CNN
+F 3 "" H 5350 3800 50  0001 C CNN
+	1    5350 3800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684B98AD
+P 4550 3300
+F 0 "U1" H 4600 3400 30  0000 C CNN
+F 1 "PORT" H 4550 3300 30  0000 C CNN
+F 2 "" H 4550 3300 60  0000 C CNN
+F 3 "" H 4550 3300 60  0000 C CNN
+	1    4550 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684B98D8
+P 6300 3350
+F 0 "U1" H 6350 3450 30  0000 C CNN
+F 1 "PORT" H 6300 3350 30  0000 C CNN
+F 2 "" H 6300 3350 60  0000 C CNN
+F 3 "" H 6300 3350 60  0000 C CNN
+	4    6300 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684B9935
+P 5300 4350
+F 0 "U1" H 5350 4450 30  0000 C CNN
+F 1 "PORT" H 5300 4350 30  0000 C CNN
+F 2 "" H 5300 4350 60  0000 C CNN
+F 3 "" H 5300 4350 60  0000 C CNN
+	3    5300 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684B999A
+P 5300 2350
+F 0 "U1" H 5350 2450 30  0000 C CNN
+F 1 "PORT" H 5300 2350 30  0000 C CNN
+F 2 "" H 5300 2350 60  0000 C CNN
+F 3 "" H 5300 2350 60  0000 C CNN
+	2    5300 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684B99CD
+P 7950 3000
+F 0 "scmode1" H 7950 3150 98  0000 C CNB
+F 1 "SKY130mode" H 7950 2900 118 0000 C CNB
+F 2 "" H 7950 3150 60  0001 C CNN
+F 3 "" H 7950 3150 60  0001 C CNN
+	1    7950 3000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5550 2650 5550 2350
+Wire Wire Line
+	5450 2950 5600 2950
+Wire Wire Line
+	5600 2950 5600 2550
+Wire Wire Line
+	5600 2550 5550 2550
+Connection ~ 5550 2550
+Wire Wire Line
+	5550 3250 5550 3500
+Wire Wire Line
+	6050 3350 5550 3350
+Connection ~ 5550 3350
+Wire Wire Line
+	5050 2950 5050 3800
+Wire Wire Line
+	4800 3300 5050 3300
+Connection ~ 5050 3300
+Wire Wire Line
+	5450 3800 5600 3800
+Wire Wire Line
+	5600 3800 5600 4150
+Wire Wire Line
+	5600 4150 5550 4150
+Wire Wire Line
+	5550 4100 5550 4350
+Connection ~ 5550 4150
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.sub b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.sub
new file mode 100644
index 000000000..dfe6de3e5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR.sub
@@ -0,0 +1,10 @@
+* Subcircuit CMOS_INVTR
+.subckt CMOS_INVTR net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ 
+* h:\esim\esim\library\subcircuitlibrary\cmos_invtr\cmos_invtr.cir
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends CMOS_INVTR
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR_Previous_Values.xml b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR_Previous_Values.xml
new file mode 100644
index 000000000..af4904616
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/CMOS_INVTR_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A-cache.lib b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A-cache.lib
new file mode 100644
index 000000000..be1f74a53
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A-cache.lib
@@ -0,0 +1,128 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" -50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 250 0 50 0 1 0 N
+P 2 0 1 0 -250 150 200 0 N
+P 3 0 1 0 -250 150 -250 -150 200 0 N
+X IN 1 -450 0 200 R 50 50 1 1 I
+X VDD 2 -450 100 200 R 50 50 1 1 I
+X GND 3 -450 -100 200 R 50 50 1 1 I
+X OUT 4 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A-rescue.lib b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A-rescue.lib
new file mode 100644
index 000000000..f0524b5d5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A-rescue.lib
@@ -0,0 +1,25 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# 3_in_and-RESCUE-SN74ALS1011A
+#
+DEF 3_in_and-RESCUE-SN74ALS1011A X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "3_in_and-RESCUE-SN74ALS1011A" 50 -300 60 H V C CNN
+F2 "" 600 -150 60 H I C CNN
+F3 "" 600 -150 60 H I C CNN
+DRAW
+A 100 0 255 787 -787 0 1 0 N 150 250 150 -250
+P 2 0 1 0 -150 250 100 250 N
+P 2 0 1 0 150 250 100 250 N
+P 3 0 1 0 -150 250 -150 -250 150 -250 N
+X in1 1 -350 100 200 R 50 50 1 1 I
+X in2 2 -350 0 200 R 50 50 1 1 I
+X Vdd 3 -350 200 200 R 50 50 1 1 I
+X Gnd 4 -350 -200 200 R 50 50 1 1 I
+X in3 5 -350 -100 200 R 50 50 1 1 I
+X out 6 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.bak b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.bak
new file mode 100644
index 000000000..158dcae59
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.bak
@@ -0,0 +1,300 @@
+EESchema Schematic File Version 2
+LIBS:SN74ALS1011A-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SN74ALS1011A-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+Wire Wire Line
+	4450 2150 3550 2150
+Wire Wire Line
+	4450 2250 3550 2250
+Wire Wire Line
+	4450 2350 3550 2350
+Wire Wire Line
+	4450 2450 3550 2450
+Wire Wire Line
+	4450 2550 3550 2550
+Wire Wire Line
+	4450 2850 4350 2850
+Wire Wire Line
+	4350 2150 4350 3550
+Connection ~ 4350 2150
+Wire Wire Line
+	4450 2950 3550 2950
+Wire Wire Line
+	4450 3050 3550 3050
+Wire Wire Line
+	4450 3150 3550 3150
+Wire Wire Line
+	4450 3250 4250 3250
+Wire Wire Line
+	4250 2550 4250 3950
+Connection ~ 4250 2550
+Wire Wire Line
+	4350 3550 4450 3550
+Connection ~ 4350 2850
+Wire Wire Line
+	4450 3650 3550 3650
+Wire Wire Line
+	4450 3750 3550 3750
+Wire Wire Line
+	4450 3850 3550 3850
+Wire Wire Line
+	4250 3950 4450 3950
+Connection ~ 4250 3250
+Wire Wire Line
+	5350 2350 5700 2350
+Wire Wire Line
+	5350 3050 5700 3050
+Wire Wire Line
+	5350 3750 5700 3750
+$Comp
+L PORT U1
+U 1 1 686CB9D2
+P 3300 2150
+F 0 "U1" H 3350 2250 30  0000 C CNN
+F 1 "PORT" H 3300 2150 30  0000 C CNN
+F 2 "" H 3300 2150 60  0000 C CNN
+F 3 "" H 3300 2150 60  0000 C CNN
+	1    3300 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686CBAC3
+P 3300 2250
+F 0 "U1" H 3350 2350 30  0000 C CNN
+F 1 "PORT" H 3300 2250 30  0000 C CNN
+F 2 "" H 3300 2250 60  0000 C CNN
+F 3 "" H 3300 2250 60  0000 C CNN
+	2    3300 2250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686CBB69
+P 3300 2350
+F 0 "U1" H 3350 2450 30  0000 C CNN
+F 1 "PORT" H 3300 2350 30  0000 C CNN
+F 2 "" H 3300 2350 60  0000 C CNN
+F 3 "" H 3300 2350 60  0000 C CNN
+	3    3300 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686CBB98
+P 3300 2450
+F 0 "U1" H 3350 2550 30  0000 C CNN
+F 1 "PORT" H 3300 2450 30  0000 C CNN
+F 2 "" H 3300 2450 60  0000 C CNN
+F 3 "" H 3300 2450 60  0000 C CNN
+	4    3300 2450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686CBBD5
+P 3300 2550
+F 0 "U1" H 3350 2650 30  0000 C CNN
+F 1 "PORT" H 3300 2550 30  0000 C CNN
+F 2 "" H 3300 2550 60  0000 C CNN
+F 3 "" H 3300 2550 60  0000 C CNN
+	5    3300 2550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 686CBCFE
+P 3300 2950
+F 0 "U1" H 3350 3050 30  0000 C CNN
+F 1 "PORT" H 3300 2950 30  0000 C CNN
+F 2 "" H 3300 2950 60  0000 C CNN
+F 3 "" H 3300 2950 60  0000 C CNN
+	6    3300 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 686CBDC7
+P 3300 3050
+F 0 "U1" H 3350 3150 30  0000 C CNN
+F 1 "PORT" H 3300 3050 30  0000 C CNN
+F 2 "" H 3300 3050 60  0000 C CNN
+F 3 "" H 3300 3050 60  0000 C CNN
+	7    3300 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 8 1 686CBE16
+P 3300 3150
+F 0 "U1" H 3350 3250 30  0000 C CNN
+F 1 "PORT" H 3300 3150 30  0000 C CNN
+F 2 "" H 3300 3150 60  0000 C CNN
+F 3 "" H 3300 3150 60  0000 C CNN
+	8    3300 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 686CBEA9
+P 3300 3650
+F 0 "U1" H 3350 3750 30  0000 C CNN
+F 1 "PORT" H 3300 3650 30  0000 C CNN
+F 2 "" H 3300 3650 60  0000 C CNN
+F 3 "" H 3300 3650 60  0000 C CNN
+	9    3300 3650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 686CC052
+P 3300 3750
+F 0 "U1" H 3350 3850 30  0000 C CNN
+F 1 "PORT" H 3300 3750 30  0000 C CNN
+F 2 "" H 3300 3750 60  0000 C CNN
+F 3 "" H 3300 3750 60  0000 C CNN
+	10   3300 3750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 11 1 686CC0CC
+P 3300 3850
+F 0 "U1" H 3350 3950 30  0000 C CNN
+F 1 "PORT" H 3300 3850 30  0000 C CNN
+F 2 "" H 3300 3850 60  0000 C CNN
+F 3 "" H 3300 3850 60  0000 C CNN
+	11   3300 3850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 12 1 686CC1BD
+P 5950 2350
+F 0 "U1" H 6000 2450 30  0000 C CNN
+F 1 "PORT" H 5950 2350 30  0000 C CNN
+F 2 "" H 5950 2350 60  0000 C CNN
+F 3 "" H 5950 2350 60  0000 C CNN
+	12   5950 2350
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 13 1 686CC2BA
+P 5950 3050
+F 0 "U1" H 6000 3150 30  0000 C CNN
+F 1 "PORT" H 5950 3050 30  0000 C CNN
+F 2 "" H 5950 3050 60  0000 C CNN
+F 3 "" H 5950 3050 60  0000 C CNN
+	13   5950 3050
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 14 1 686CC54C
+P 5950 3750
+F 0 "U1" H 6000 3850 30  0000 C CNN
+F 1 "PORT" H 5950 3750 30  0000 C CNN
+F 2 "" H 5950 3750 60  0000 C CNN
+F 3 "" H 5950 3750 60  0000 C CNN
+	14   5950 3750
+	-1   0    0    1   
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 686CC7EC
+P 7950 3000
+F 0 "scmode1" H 7950 3150 98  0000 C CNB
+F 1 "SKY130mode" H 7950 2900 118 0000 C CNB
+F 2 "" H 7950 3150 60  0001 C CNN
+F 3 "" H 7950 3150 60  0001 C CNN
+	1    7950 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L 3_in_and X1
+U 1 1 6877598F
+P 4900 2350
+F 0 "X1" H 4900 2350 60  0000 C CNN
+F 1 "3_in_and" H 4900 2050 60  0000 C CNN
+F 2 "" H 4900 2350 60  0001 C CNN
+F 3 "" H 4900 2350 60  0001 C CNN
+	1    4900 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L 3_in_and X2
+U 1 1 687759D6
+P 4900 3050
+F 0 "X2" H 4900 3050 60  0000 C CNN
+F 1 "3_in_and" H 4900 2750 60  0000 C CNN
+F 2 "" H 4900 3050 60  0001 C CNN
+F 3 "" H 4900 3050 60  0001 C CNN
+	1    4900 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L 3_in_and X3
+U 1 1 68775A17
+P 4900 3750
+F 0 "X3" H 4900 3750 60  0000 C CNN
+F 1 "3_in_and" H 4900 3450 60  0000 C CNN
+F 2 "" H 4900 3750 60  0001 C CNN
+F 3 "" H 4900 3750 60  0001 C CNN
+	1    4900 3750
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.cir b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.cir
new file mode 100644
index 000000000..e213b6679
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.cir
@@ -0,0 +1,33 @@
+* H:\esim\eSim\library\SubcircuitLibrary\SN74ALS1011A\SN74ALS1011A.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 07/22/25 19:42:49
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC2-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC6  Net-_SC1-Pad1_ Net-_SC5-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC3  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC3-Pad3_ Net-_SC2-Pad2_ Net-_SC4-Pad3_ Net-_SC4-Pad3_ sky130_fd_pr__nfet_01v8		
+SC5  Net-_SC4-Pad3_ Net-_SC5-Pad2_ Net-_SC11-Pad3_ Net-_SC11-Pad3_ sky130_fd_pr__nfet_01v8		
+SC7  Net-_SC12-Pad1_ Net-_SC7-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC8  Net-_SC12-Pad1_ Net-_SC10-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC12  Net-_SC12-Pad1_ Net-_SC11-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC9  Net-_SC12-Pad1_ Net-_SC7-Pad2_ Net-_SC10-Pad1_ Net-_SC10-Pad1_ sky130_fd_pr__nfet_01v8		
+SC10  Net-_SC10-Pad1_ Net-_SC10-Pad2_ Net-_SC10-Pad3_ Net-_SC10-Pad3_ sky130_fd_pr__nfet_01v8		
+SC11  Net-_SC10-Pad3_ Net-_SC11-Pad2_ Net-_SC11-Pad3_ Net-_SC11-Pad3_ sky130_fd_pr__nfet_01v8		
+SC13  Net-_SC13-Pad1_ Net-_SC13-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC14  Net-_SC13-Pad1_ Net-_SC14-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC18  Net-_SC13-Pad1_ Net-_SC17-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC15  Net-_SC13-Pad1_ Net-_SC13-Pad2_ Net-_SC15-Pad3_ Net-_SC15-Pad3_ sky130_fd_pr__nfet_01v8		
+SC16  Net-_SC15-Pad3_ Net-_SC14-Pad2_ Net-_SC16-Pad3_ Net-_SC16-Pad3_ sky130_fd_pr__nfet_01v8		
+SC17  Net-_SC16-Pad3_ Net-_SC17-Pad2_ Net-_SC11-Pad3_ Net-_SC11-Pad3_ sky130_fd_pr__nfet_01v8		
+X1  Net-_SC1-Pad1_ Net-_SC1-Pad3_ Net-_SC11-Pad3_ Net-_U1-Pad6_ CMOS_INVTR		
+X2  Net-_SC12-Pad1_ Net-_SC1-Pad3_ Net-_SC11-Pad3_ Net-_U1-Pad10_ CMOS_INVTR		
+X3  Net-_SC13-Pad1_ Net-_SC1-Pad3_ Net-_SC11-Pad3_ Net-_U1-Pad14_ CMOS_INVTR		
+U1  Net-_SC2-Pad2_ Net-_SC1-Pad2_ Net-_SC5-Pad2_ Net-_SC11-Pad3_ Net-_SC1-Pad3_ Net-_U1-Pad6_ Net-_SC10-Pad2_ Net-_SC7-Pad2_ Net-_SC11-Pad2_ Net-_U1-Pad10_ Net-_SC14-Pad2_ Net-_SC13-Pad2_ Net-_SC17-Pad2_ Net-_U1-Pad14_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.cir.out b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.cir.out
new file mode 100644
index 000000000..4473a3274
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.cir.out
@@ -0,0 +1,42 @@
+* h:\esim\esim\library\subcircuitlibrary\sn74als1011a\sn74als1011a.cir
+
+.include CMOS_INVTR.sub
+.lib "H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice" tt
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__r+c.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__pnp.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__linear.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__inductors.model.spice"
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc6 net-_sc1-pad1_ net-_sc5-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc3-pad3_ net-_sc2-pad2_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc5 net-_sc4-pad3_ net-_sc5-pad2_ net-_sc11-pad3_ net-_sc11-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc7 net-_sc12-pad1_ net-_sc7-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc8 net-_sc12-pad1_ net-_sc10-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc12 net-_sc12-pad1_ net-_sc11-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc9 net-_sc12-pad1_ net-_sc7-pad2_ net-_sc10-pad1_ net-_sc10-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc10 net-_sc10-pad1_ net-_sc10-pad2_ net-_sc10-pad3_ net-_sc10-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc11 net-_sc10-pad3_ net-_sc11-pad2_ net-_sc11-pad3_ net-_sc11-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc13 net-_sc13-pad1_ net-_sc13-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc14 net-_sc13-pad1_ net-_sc14-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc18 net-_sc13-pad1_ net-_sc17-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc15 net-_sc13-pad1_ net-_sc13-pad2_ net-_sc15-pad3_ net-_sc15-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc16 net-_sc15-pad3_ net-_sc14-pad2_ net-_sc16-pad3_ net-_sc16-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc17 net-_sc16-pad3_ net-_sc17-pad2_ net-_sc11-pad3_ net-_sc11-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+x1 net-_sc1-pad1_ net-_sc1-pad3_ net-_sc11-pad3_ net-_u1-pad6_ CMOS_INVTR
+x2 net-_sc12-pad1_ net-_sc1-pad3_ net-_sc11-pad3_ net-_u1-pad10_ CMOS_INVTR
+x3 net-_sc13-pad1_ net-_sc1-pad3_ net-_sc11-pad3_ net-_u1-pad14_ CMOS_INVTR
+* u1  net-_sc2-pad2_ net-_sc1-pad2_ net-_sc5-pad2_ net-_sc11-pad3_ net-_sc1-pad3_ net-_u1-pad6_ net-_sc10-pad2_ net-_sc7-pad2_ net-_sc11-pad2_ net-_u1-pad10_ net-_sc14-pad2_ net-_sc13-pad2_ net-_sc17-pad2_ net-_u1-pad14_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.pro b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.pro
new file mode 100644
index 000000000..bc66536a1
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.pro
@@ -0,0 +1,74 @@
+update=07/16/25 13:11:19
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=SN74ALS1011A-rescue
+LibName2=adc-dac
+LibName3=memory
+LibName4=xilinx
+LibName5=microcontrollers
+LibName6=dsp
+LibName7=microchip
+LibName8=analog_switches
+LibName9=motorola
+LibName10=texas
+LibName11=intel
+LibName12=audio
+LibName13=interface
+LibName14=digital-audio
+LibName15=philips
+LibName16=display
+LibName17=cypress
+LibName18=siliconi
+LibName19=opto
+LibName20=atmel
+LibName21=contrib
+LibName22=power
+LibName23=eSim_Plot
+LibName24=transistors
+LibName25=conn
+LibName26=eSim_User
+LibName27=regul
+LibName28=74xx
+LibName29=cmos4000
+LibName30=eSim_Analog
+LibName31=eSim_Devices
+LibName32=eSim_Digital
+LibName33=eSim_Hybrid
+LibName34=eSim_Miscellaneous
+LibName35=eSim_Power
+LibName36=eSim_Sources
+LibName37=eSim_Subckt
+LibName38=eSim_Nghdl
+LibName39=eSim_Ngveri
+LibName40=eSim_SKY130
+LibName41=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.sch b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.sch
new file mode 100644
index 000000000..e25e66845
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.sch
@@ -0,0 +1,739 @@
+EESchema Schematic File Version 2
+LIBS:SN74ALS1011A-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SN74ALS1011A-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
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+Date ""
+Rev ""
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+	1    5600 2250
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+F 2 "" H 6000 2150 50  0001 C CNN
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+	1    6000 3650
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+	1    7700 1450
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+	1    8450 1450
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+	1    9200 1450
+	1    0    0    -1  
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+F 2 "" H 8450 750 50  0001 C CNN
+F 3 "" H 8450 2250 50  0001 C CNN
+	1    8450 2250
+	1    0    0    -1  
+$EndComp
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+F 2 "" H 8450 1450 50  0001 C CNN
+F 3 "" H 8450 2950 50  0001 C CNN
+	1    8450 2950
+	1    0    0    -1  
+$EndComp
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+F 2 "" H 8850 2150 50  0001 C CNN
+F 3 "" H 8850 3650 50  0001 C CNN
+	1    8850 3650
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+$EndComp
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+F 2 "" H 3800 2400 60  0001 C CNN
+F 3 "" H 3800 2400 60  0001 C CNN
+	1    3800 2400
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+$EndComp
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+F 3 "" H 6700 2400 60  0001 C CNN
+	1    6700 2400
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+	1    9550 2450
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+U 13 1 687FCBCF
+P 9000 2250
+F 0 "U1" H 9050 2350 30  0000 C CNN
+F 1 "PORT" H 9000 2250 30  0000 C CNN
+F 2 "" H 9000 2250 60  0000 C CNN
+F 3 "" H 9000 2250 60  0000 C CNN
+	13   9000 2250
+	0    1    -1   0   
+$EndComp
+$Comp
+L PORT U1
+U 14 1 687FCD4D
+P 9800 2950
+F 0 "U1" H 9850 3050 30  0000 C CNN
+F 1 "PORT" H 9800 2950 30  0000 C CNN
+F 2 "" H 9800 2950 60  0000 C CNN
+F 3 "" H 9800 2950 60  0000 C CNN
+	14   9800 2950
+	-1   0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 687FCE65
+P 7650 3600
+F 0 "scmode1" H 7650 3750 98  0000 C CNB
+F 1 "SKY130mode" H 7650 3500 118 0000 C CNB
+F 2 "" H 7650 3750 60  0001 C CNN
+F 3 "" H 7650 3750 60  0001 C CNN
+	1    7650 3600
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.sub b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.sub
new file mode 100644
index 000000000..9c3996400
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A.sub
@@ -0,0 +1,36 @@
+* Subcircuit SN74ALS1011A
+.subckt SN74ALS1011A net-_sc2-pad2_ net-_sc1-pad2_ net-_sc5-pad2_ net-_sc11-pad3_ net-_sc1-pad3_ net-_u1-pad6_ net-_sc10-pad2_ net-_sc7-pad2_ net-_sc11-pad2_ net-_u1-pad10_ net-_sc14-pad2_ net-_sc13-pad2_ net-_sc17-pad2_ net-_u1-pad14_ 
+* h:\esim\esim\library\subcircuitlibrary\sn74als1011a\sn74als1011a.cir
+.include CMOS_INVTR.sub
+.lib "H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice" tt
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__diode_pd2nw_11v0.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__r+c.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__pnp.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__linear.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__diode_pw2nd_11v0.model.spice"
+.include "H:\esim\eSim\library\sky130_fd_pr\models\sky130_fd_pr__model__inductors.model.spice"
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc6 net-_sc1-pad1_ net-_sc5-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc3-pad3_ net-_sc2-pad2_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc5 net-_sc4-pad3_ net-_sc5-pad2_ net-_sc11-pad3_ net-_sc11-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc7 net-_sc12-pad1_ net-_sc7-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc8 net-_sc12-pad1_ net-_sc10-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc12 net-_sc12-pad1_ net-_sc11-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc9 net-_sc12-pad1_ net-_sc7-pad2_ net-_sc10-pad1_ net-_sc10-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc10 net-_sc10-pad1_ net-_sc10-pad2_ net-_sc10-pad3_ net-_sc10-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc11 net-_sc10-pad3_ net-_sc11-pad2_ net-_sc11-pad3_ net-_sc11-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc13 net-_sc13-pad1_ net-_sc13-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc14 net-_sc13-pad1_ net-_sc14-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc18 net-_sc13-pad1_ net-_sc17-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc15 net-_sc13-pad1_ net-_sc13-pad2_ net-_sc15-pad3_ net-_sc15-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc16 net-_sc15-pad3_ net-_sc14-pad2_ net-_sc16-pad3_ net-_sc16-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc17 net-_sc16-pad3_ net-_sc17-pad2_ net-_sc11-pad3_ net-_sc11-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+x1 net-_sc1-pad1_ net-_sc1-pad3_ net-_sc11-pad3_ net-_u1-pad6_ CMOS_INVTR
+x2 net-_sc12-pad1_ net-_sc1-pad3_ net-_sc11-pad3_ net-_u1-pad10_ CMOS_INVTR
+x3 net-_sc13-pad1_ net-_sc1-pad3_ net-_sc11-pad3_ net-_u1-pad14_ CMOS_INVTR
+* s c m o d e
+* Control Statements
+
+.ends SN74ALS1011A
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A_Previous_Values.xml b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A_Previous_Values.xml
new file mode 100644
index 000000000..020905d17
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/SN74ALS1011A_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=3 l=0.15</field></sc2><sc6><field>w=3 l=0.15</field></sc6><sc3><field>w=1 l=0.15</field></sc3><sc4><field>w=1 l=0.15</field></sc4><sc5><field>w=1 l=0.15</field></sc5><sc7><field>w=3 l=0.15</field></sc7><sc8><field>w=3 l=0.15</field></sc8><sc12><field>w=3 l=0.15</field></sc12><sc9><field>w=1 l=0.15</field></sc9><sc10><field>w=1 l=0.15</field></sc10><sc11><field>w=1 l=0.15</field></sc11><sc13><field>w=3 l=0.15</field></sc13><sc14><field>w=3 l=0.15</field></sc14><sc18><field>w=3 l=0.15</field></sc18><sc15><field>w=1 l=0.15</field></sc15><sc16><field>w=1 l=0.15</field></sc16><sc17><field>w=1 l=0.15</field></sc17></devicemodel><subcircuit><x1><field>H:\esim\eSim\library\SubcircuitLibrary\CMOS_INVTR</field></x1><x2><field>H:\esim\eSim\library\SubcircuitLibrary\CMOS_INVTR</field></x2><x3><field>H:\esim\eSim\library\SubcircuitLibrary\CMOS_INVTR</field></x3></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74ALS1011A/analysis b/library/SubcircuitLibrary/SN74ALS1011A/analysis
new file mode 100644
index 000000000..ebd5c0a94
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74ALS1011A/analysis
@@ -0,0 +1 @@
+.tran 0e-00 0e-00 0e-00
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR-cache.lib b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.cir b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.cir
new file mode 100644
index 000000000..d2199ddbb
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.cir
@@ -0,0 +1,14 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR/CMOS_INVTR.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Fri Jun 13 08:49:20 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.cir.out b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.cir.out
new file mode 100644
index 000000000..dec1c5fa5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_invtr/cmos_invtr.cir
+
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.pro b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.sch b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.sch
new file mode 100644
index 000000000..aa7a7ee81
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.sch
@@ -0,0 +1,161 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 684B982F
+P 5350 2950
+F 0 "SC1" H 5400 3250 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5650 3037 50  0000 R CNN
+F 2 "" H 5350 1450 50  0001 C CNN
+F 3 "" H 5350 2950 50  0001 C CNN
+	1    5350 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684B9856
+P 5350 3800
+F 0 "SC2" H 5400 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5650 3887 50  0000 R CNN
+F 2 "" H 5350 2300 50  0001 C CNN
+F 3 "" H 5350 3800 50  0001 C CNN
+	1    5350 3800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684B98AD
+P 4550 3300
+F 0 "U1" H 4600 3400 30  0000 C CNN
+F 1 "PORT" H 4550 3300 30  0000 C CNN
+F 2 "" H 4550 3300 60  0000 C CNN
+F 3 "" H 4550 3300 60  0000 C CNN
+	1    4550 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684B98D8
+P 6300 3350
+F 0 "U1" H 6350 3450 30  0000 C CNN
+F 1 "PORT" H 6300 3350 30  0000 C CNN
+F 2 "" H 6300 3350 60  0000 C CNN
+F 3 "" H 6300 3350 60  0000 C CNN
+	4    6300 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684B9935
+P 5300 4350
+F 0 "U1" H 5350 4450 30  0000 C CNN
+F 1 "PORT" H 5300 4350 30  0000 C CNN
+F 2 "" H 5300 4350 60  0000 C CNN
+F 3 "" H 5300 4350 60  0000 C CNN
+	3    5300 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684B999A
+P 5300 2350
+F 0 "U1" H 5350 2450 30  0000 C CNN
+F 1 "PORT" H 5300 2350 30  0000 C CNN
+F 2 "" H 5300 2350 60  0000 C CNN
+F 3 "" H 5300 2350 60  0000 C CNN
+	2    5300 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684B99CD
+P 7950 3000
+F 0 "scmode1" H 7950 3150 98  0000 C CNB
+F 1 "SKY130mode" H 7950 2900 118 0000 C CNB
+F 2 "" H 7950 3150 60  0001 C CNN
+F 3 "" H 7950 3150 60  0001 C CNN
+	1    7950 3000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5550 2650 5550 2350
+Wire Wire Line
+	5450 2950 5600 2950
+Wire Wire Line
+	5600 2950 5600 2550
+Wire Wire Line
+	5600 2550 5550 2550
+Connection ~ 5550 2550
+Wire Wire Line
+	5550 3250 5550 3500
+Wire Wire Line
+	6050 3350 5550 3350
+Connection ~ 5550 3350
+Wire Wire Line
+	5050 2950 5050 3800
+Wire Wire Line
+	4800 3300 5050 3300
+Connection ~ 5050 3300
+Wire Wire Line
+	5450 3800 5600 3800
+Wire Wire Line
+	5600 3800 5600 4150
+Wire Wire Line
+	5600 4150 5550 4150
+Wire Wire Line
+	5550 4100 5550 4350
+Connection ~ 5550 4150
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.sub b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.sub
new file mode 100644
index 000000000..8283bca86
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR.sub
@@ -0,0 +1,11 @@
+* Subcircuit CMOS_INVTR
+.subckt CMOS_INVTR net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/cmos_invtr/cmos_invtr.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends CMOS_INVTR
diff --git a/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR_Previous_Values.xml b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR_Previous_Values.xml
new file mode 100644
index 000000000..d17c4f93e
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/CMOS_INVTR_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3, l=0.15</field></sc1><sc2><field>w=1, l=0.15</field></sc2></devicemodel><subcircuit /></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74HC259/D_latch-cache.lib b/library/SubcircuitLibrary/SN74HC259/D_latch-cache.lib
new file mode 100644
index 000000000..00b011e78
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/D_latch-cache.lib
@@ -0,0 +1,98 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# NAND_2
+#
+DEF NAND_2 X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "NAND_2" 400 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 400 0 255 787 -787 0 1 0 N 450 250 450 -250
+C 700 0 0 0 1 0 N
+C 700 0 50 0 1 0 N
+P 2 0 1 0 -300 250 450 250 N
+P 3 0 1 0 -300 250 -300 -250 450 -250 N
+X inA 1 -500 100 200 R 50 50 1 1 I
+X Gnd 2 0 -450 200 U 50 50 1 1 I
+X Vdd 3 0 450 200 D 50 50 1 1 I
+X Out 4 950 0 200 L 50 50 1 1 O
+X inB 5 -500 -100 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# NAND_3
+#
+DEF NAND_3 X 0 40 Y Y 1 F N
+F0 "X" 150 0 60 H V C CNN
+F1 "NAND_3" 450 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 500 0 255 787 -787 0 1 0 N 550 250 550 -250
+C 800 0 50 0 1 0 N
+P 2 0 1 0 -250 250 550 250 N
+P 3 0 1 0 -250 250 -250 -250 550 -250 N
+X inA 1 -450 150 200 R 50 50 1 1 I
+X inB 2 -450 0 200 R 50 50 1 1 I
+X Gnd 3 0 -450 200 U 50 50 1 1 I
+X Vdd 4 0 450 200 D 50 50 1 1 I
+X Out 5 1050 0 200 L 50 50 1 1 O
+X inC 6 -450 -150 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74HC259/D_latch-rescue.lib b/library/SubcircuitLibrary/SN74HC259/D_latch-rescue.lib
new file mode 100644
index 000000000..7569c1e39
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/D_latch-rescue.lib
@@ -0,0 +1,46 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# NAND_2-RESCUE-D_latch
+#
+DEF NAND_2-RESCUE-D_latch X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "NAND_2-RESCUE-D_latch" 400 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 400 0 255 787 -787 0 1 0 N 450 250 450 -250
+C 700 0 0 0 1 0 N
+C 700 0 50 0 1 0 N
+P 2 0 1 0 -300 250 450 250 N
+P 3 0 1 0 -300 250 -300 -250 450 -250 N
+X inA 1 -500 100 200 R 50 50 1 1 I
+X Gnd 2 0 -450 200 U 50 50 1 1 I
+X Vdd 3 0 450 200 D 50 50 1 1 I
+X inB 4 -500 -100 200 R 50 50 1 1 I
+X Out 5 950 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NAND_3-RESCUE-D_latch
+#
+DEF NAND_3-RESCUE-D_latch X 0 40 Y Y 1 F N
+F0 "X" 150 0 60 H V C CNN
+F1 "NAND_3-RESCUE-D_latch" 450 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 500 0 255 787 -787 0 1 0 N 550 250 550 -250
+C 800 0 50 0 1 0 N
+P 2 0 1 0 -250 250 550 250 N
+P 3 0 1 0 -250 250 -250 -250 550 -250 N
+X inA 1 -450 150 200 R 50 50 1 1 I
+X inB 2 -450 0 200 R 50 50 1 1 I
+X Gnd 3 0 -450 200 U 50 50 1 1 I
+X Vdd 4 0 450 200 D 50 50 1 1 I
+X inC 5 -450 -150 200 R 50 50 1 1 I
+X Out 6 1050 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74HC259/D_latch.bak b/library/SubcircuitLibrary/SN74HC259/D_latch.bak
new file mode 100644
index 000000000..1330c40b2
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/D_latch.bak
@@ -0,0 +1,362 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L NAND_2 X4
+U 1 1 684AF5ED
+P 3900 1800
+F 0 "X4" H 4000 1800 60  0000 C CNN
+F 1 "NAND_2" H 4300 1800 60  0000 C CNN
+F 2 "" H 3900 1800 60  0001 C CNN
+F 3 "" H 3900 1800 60  0001 C CNN
+	1    3900 1800
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_2 X6
+U 1 1 684AF614
+P 8000 2950
+F 0 "X6" H 8100 2950 60  0000 C CNN
+F 1 "NAND_2" H 8400 2950 60  0000 C CNN
+F 2 "" H 8000 2950 60  0001 C CNN
+F 3 "" H 8000 2950 60  0001 C CNN
+	1    8000 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_3 X1
+U 1 1 684AF795
+P 3850 3100
+F 0 "X1" H 4000 3100 60  0000 C CNN
+F 1 "NAND_3" H 4300 3100 60  0000 C CNN
+F 2 "" H 3850 3100 60  0001 C CNN
+F 3 "" H 3850 3100 60  0001 C CNN
+	1    3850 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_3 X2
+U 1 1 684AF829
+P 3850 4350
+F 0 "X2" H 4000 4350 60  0000 C CNN
+F 1 "NAND_3" H 4300 4350 60  0000 C CNN
+F 2 "" H 3850 4350 60  0001 C CNN
+F 3 "" H 3850 4350 60  0001 C CNN
+	1    3850 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_3 X3
+U 1 1 684AF8A8
+P 3850 5600
+F 0 "X3" H 4000 5600 60  0000 C CNN
+F 1 "NAND_3" H 4300 5600 60  0000 C CNN
+F 2 "" H 3850 5600 60  0001 C CNN
+F 3 "" H 3850 5600 60  0001 C CNN
+	1    3850 5600
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_3 X5
+U 1 1 684AF935
+P 7950 4400
+F 0 "X5" H 8100 4400 60  0000 C CNN
+F 1 "NAND_3" H 8400 4400 60  0000 C CNN
+F 2 "" H 7950 4400 60  0001 C CNN
+F 3 "" H 7950 4400 60  0001 C CNN
+	1    7950 4400
+	1    0    0    -1  
+$EndComp
+Text Label 3050 3700 0    60   ~ 0
+LE
+Wire Wire Line
+	3400 3100 3050 3100
+Wire Wire Line
+	3050 3100 3050 4350
+Wire Wire Line
+	3050 4350 3400 4350
+Wire Wire Line
+	3050 3700 2400 3700
+Connection ~ 3050 3700
+Wire Wire Line
+	3400 2950 3400 2550
+Wire Wire Line
+	3400 2550 4900 2550
+Wire Wire Line
+	4900 2550 4900 1800
+Wire Wire Line
+	4900 1800 4850 1800
+Wire Wire Line
+	3400 1900 3400 2500
+Wire Wire Line
+	3400 2500 4950 2500
+Wire Wire Line
+	4950 2500 4950 3750
+Wire Wire Line
+	4900 3100 6950 3100
+Wire Wire Line
+	4900 5600 5000 5600
+Wire Wire Line
+	5000 4950 5000 6500
+Wire Wire Line
+	5000 6500 2700 6500
+Wire Wire Line
+	2700 6500 2700 1700
+Wire Wire Line
+	2700 1700 3400 1700
+Wire Wire Line
+	3400 4500 3300 4500
+Wire Wire Line
+	3300 4500 3300 4950
+Wire Wire Line
+	3300 4950 5000 4950
+Connection ~ 5000 5600
+Wire Wire Line
+	4900 4350 7350 4350
+Wire Wire Line
+	4950 4350 4950 5000
+Wire Wire Line
+	4950 5000 3300 5000
+Wire Wire Line
+	3300 5000 3300 5450
+Wire Wire Line
+	3300 5450 3400 5450
+Wire Wire Line
+	3400 5600 2400 5600
+Wire Wire Line
+	3400 3250 2850 3250
+Wire Wire Line
+	2850 3250 2850 6350
+Wire Wire Line
+	2850 6350 5650 6350
+Wire Wire Line
+	2400 5750 3400 5750
+Connection ~ 2850 5750
+Text Label 2850 5750 0    60   ~ 0
+RE
+Text Label 2500 5600 0    60   ~ 0
+D
+Wire Wire Line
+	3400 4200 3300 4200
+Wire Wire Line
+	3300 4200 3300 3750
+Wire Wire Line
+	3300 3750 4950 3750
+Connection ~ 4950 3100
+Wire Wire Line
+	8950 2950 9600 2950
+Wire Wire Line
+	9000 2950 9000 3600
+Wire Wire Line
+	9000 3600 7500 3600
+Wire Wire Line
+	7500 3600 7500 4250
+Wire Wire Line
+	7500 3050 7400 3050
+Wire Wire Line
+	7400 3050 7400 3750
+Wire Wire Line
+	7400 3750 9100 3750
+Wire Wire Line
+	9100 3750 9100 4400
+Wire Wire Line
+	9000 4400 9750 4400
+Wire Wire Line
+	6950 3100 6950 2850
+Wire Wire Line
+	6950 2850 7500 2850
+Wire Wire Line
+	7350 4350 7350 4400
+Wire Wire Line
+	7350 4400 7500 4400
+Connection ~ 4950 4350
+Wire Wire Line
+	7500 4550 5650 4550
+Wire Wire Line
+	5650 4550 5650 6350
+Connection ~ 9000 2950
+Connection ~ 9100 4400
+$Comp
+L PORT U1
+U 2 1 684B0C88
+P 2150 5600
+F 0 "U1" H 2200 5700 30  0000 C CNN
+F 1 "PORT" H 2150 5600 30  0000 C CNN
+F 2 "" H 2150 5600 60  0000 C CNN
+F 3 "" H 2150 5600 60  0000 C CNN
+	2    2150 5600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684B0F85
+P 2150 3700
+F 0 "U1" H 2200 3800 30  0000 C CNN
+F 1 "PORT" H 2150 3700 30  0000 C CNN
+F 2 "" H 2150 3700 60  0000 C CNN
+F 3 "" H 2150 3700 60  0000 C CNN
+	1    2150 3700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684B1102
+P 2150 5750
+F 0 "U1" H 2200 5850 30  0000 C CNN
+F 1 "PORT" H 2150 5750 30  0000 C CNN
+F 2 "" H 2150 5750 60  0000 C CNN
+F 3 "" H 2150 5750 60  0000 C CNN
+	3    2150 5750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 684B120F
+P 9850 2950
+F 0 "U1" H 9900 3050 30  0000 C CNN
+F 1 "PORT" H 9850 2950 30  0000 C CNN
+F 2 "" H 9850 2950 60  0000 C CNN
+F 3 "" H 9850 2950 60  0000 C CNN
+	6    9850 2950
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 684B1432
+P 10000 4400
+F 0 "U1" H 10050 4500 30  0000 C CNN
+F 1 "PORT" H 10000 4400 30  0000 C CNN
+F 2 "" H 10000 4400 60  0000 C CNN
+F 3 "" H 10000 4400 60  0000 C CNN
+	7    10000 4400
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	3900 1350 8000 1350
+Wire Wire Line
+	8000 1350 8000 2500
+Wire Wire Line
+	3850 2650 5300 2650
+Wire Wire Line
+	5300 1350 5300 5150
+Connection ~ 5300 1350
+Wire Wire Line
+	5300 3900 3850 3900
+Connection ~ 5300 2650
+Wire Wire Line
+	5300 5150 3850 5150
+Connection ~ 5300 3900
+Wire Wire Line
+	7950 3950 5300 3950
+Wire Wire Line
+	5300 3950 5300 3900
+Wire Wire Line
+	3900 2250 4200 2250
+Wire Wire Line
+	4200 2250 4200 6050
+Wire Wire Line
+	4200 6050 3850 6050
+Wire Wire Line
+	3850 4800 4200 4800
+Connection ~ 4200 4800
+Wire Wire Line
+	3850 3550 4200 3550
+Connection ~ 4200 3550
+Wire Wire Line
+	8000 3400 4200 3400
+Connection ~ 4200 3400
+Wire Wire Line
+	7950 4850 4200 4850
+Connection ~ 4200 4850
+$Comp
+L PORT U1
+U 5 1 684B1B45
+P 4800 1550
+F 0 "U1" H 4850 1650 30  0000 C CNN
+F 1 "PORT" H 4800 1550 30  0000 C CNN
+F 2 "" H 4800 1550 60  0000 C CNN
+F 3 "" H 4800 1550 60  0000 C CNN
+	5    4800 1550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684B1E48
+P 3750 2400
+F 0 "U1" H 3800 2500 30  0000 C CNN
+F 1 "PORT" H 3750 2400 30  0000 C CNN
+F 2 "" H 3750 2400 60  0000 C CNN
+F 3 "" H 3750 2400 60  0000 C CNN
+	4    3750 2400
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4000 2400 4000 2250
+Connection ~ 4000 2250
+Wire Wire Line
+	5050 1550 5050 1350
+Connection ~ 5050 1350
+$Comp
+L SKY130mode scmode1
+U 1 1 684B2043
+P 10100 1700
+F 0 "scmode1" H 10100 1850 98  0000 C CNB
+F 1 "SKY130mode" H 10100 1600 118 0000 C CNB
+F 2 "" H 10100 1850 60  0001 C CNN
+F 3 "" H 10100 1850 60  0001 C CNN
+	1    10100 1700
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74HC259/D_latch.cir b/library/SubcircuitLibrary/SN74HC259/D_latch.cir
new file mode 100644
index 000000000..e0414df84
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/D_latch.cir
@@ -0,0 +1,18 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_latch/D_latch.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 14 09:45:19 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+U1  /LE /D /RE Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ PORT		
+scmode1  SKY130mode		
+X4  Net-_X2-Pad6_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_X1-Pad1_ Net-_X1-Pad5_ NAND_2		
+X1  Net-_X1-Pad1_ /LE Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_X1-Pad5_ /RE NAND_3		
+X2  Net-_X1-Pad5_ /LE Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_X2-Pad5_ Net-_X2-Pad6_ NAND_3		
+X3  Net-_X2-Pad5_ /D Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_X2-Pad6_ /RE NAND_3		
+X6  Net-_X1-Pad5_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ NAND_2		
+X5  Net-_U1-Pad6_ Net-_X2-Pad5_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad7_ /RE NAND_3		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/D_latch.cir.out b/library/SubcircuitLibrary/SN74HC259/D_latch.cir.out
new file mode 100644
index 000000000..cc8164a26
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/D_latch.cir.out
@@ -0,0 +1,23 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/d_latch/d_latch.cir
+
+.include NAND_2.sub
+.include NAND_3.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+* u1  /le /d /re net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ port
+* s c m o d e
+x4 net-_x2-pad6_ net-_u1-pad4_ net-_u1-pad5_ net-_x1-pad1_ net-_x1-pad5_ NAND_2
+x1 net-_x1-pad1_ /le net-_u1-pad4_ net-_u1-pad5_ net-_x1-pad5_ /re NAND_3
+x2 net-_x1-pad5_ /le net-_u1-pad4_ net-_u1-pad5_ net-_x2-pad5_ net-_x2-pad6_ NAND_3
+x3 net-_x2-pad5_ /d net-_u1-pad4_ net-_u1-pad5_ net-_x2-pad6_ /re NAND_3
+x6 net-_x1-pad5_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ NAND_2
+x5 net-_u1-pad6_ net-_x2-pad5_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad7_ /re NAND_3
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/D_latch.pro b/library/SubcircuitLibrary/SN74HC259/D_latch.pro
new file mode 100644
index 000000000..973266fee
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/D_latch.pro
@@ -0,0 +1,74 @@
+update=Sat Jun 14 09:43:16 2025
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=D_latch-rescue
+LibName2=adc-dac
+LibName3=memory
+LibName4=xilinx
+LibName5=microcontrollers
+LibName6=dsp
+LibName7=microchip
+LibName8=analog_switches
+LibName9=motorola
+LibName10=texas
+LibName11=intel
+LibName12=audio
+LibName13=interface
+LibName14=digital-audio
+LibName15=philips
+LibName16=display
+LibName17=cypress
+LibName18=siliconi
+LibName19=opto
+LibName20=atmel
+LibName21=contrib
+LibName22=power
+LibName23=eSim_Plot
+LibName24=transistors
+LibName25=conn
+LibName26=eSim_User
+LibName27=regul
+LibName28=74xx
+LibName29=cmos4000
+LibName30=eSim_Analog
+LibName31=eSim_Devices
+LibName32=eSim_Digital
+LibName33=eSim_Hybrid
+LibName34=eSim_Miscellaneous
+LibName35=eSim_Power
+LibName36=eSim_Sources
+LibName37=eSim_Subckt
+LibName38=eSim_Nghdl
+LibName39=eSim_Ngveri
+LibName40=eSim_SKY130
+LibName41=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74HC259/D_latch.sch b/library/SubcircuitLibrary/SN74HC259/D_latch.sch
new file mode 100644
index 000000000..98739abf0
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/D_latch.sch
@@ -0,0 +1,364 @@
+EESchema Schematic File Version 2
+LIBS:D_latch-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:D_latch-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+Text Label 3050 3700 0    60   ~ 0
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+F 2 "" H 2150 5600 60  0000 C CNN
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+F 3 "" H 2150 5750 60  0000 C CNN
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+F 2 "" H 9850 2950 60  0000 C CNN
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+	6    9850 2950
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+$Comp
+L PORT U1
+U 7 1 684B1432
+P 10000 4400
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+F 1 "PORT" H 10000 4400 30  0000 C CNN
+F 2 "" H 10000 4400 60  0000 C CNN
+F 3 "" H 10000 4400 60  0000 C CNN
+	7    10000 4400
+	-1   0    0    1   
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+Wire Wire Line
+	3900 1350 8000 1350
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+	5300 3950 5300 3900
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+Wire Wire Line
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+Wire Wire Line
+	4200 6050 3850 6050
+Wire Wire Line
+	3850 4800 4200 4800
+Connection ~ 4200 4800
+Wire Wire Line
+	3850 3550 4200 3550
+Connection ~ 4200 3550
+Wire Wire Line
+	8000 3400 4200 3400
+Connection ~ 4200 3400
+Wire Wire Line
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+Connection ~ 4200 4850
+$Comp
+L PORT U1
+U 5 1 684B1B45
+P 4800 1550
+F 0 "U1" H 4850 1650 30  0000 C CNN
+F 1 "PORT" H 4800 1550 30  0000 C CNN
+F 2 "" H 4800 1550 60  0000 C CNN
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+	1    0    0    -1  
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+$Comp
+L PORT U1
+U 4 1 684B1E48
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+F 2 "" H 3750 2400 60  0000 C CNN
+F 3 "" H 3750 2400 60  0000 C CNN
+	4    3750 2400
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4000 2400 4000 2250
+Connection ~ 4000 2250
+Wire Wire Line
+	5050 1550 5050 1350
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+$Comp
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+U 1 1 684B2043
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+F 2 "" H 10100 1850 60  0001 C CNN
+F 3 "" H 10100 1850 60  0001 C CNN
+	1    10100 1700
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_2 X4
+U 1 1 684CF80D
+P 3900 1800
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+F 2 "" H 3900 1800 60  0001 C CNN
+F 3 "" H 3900 1800 60  0001 C CNN
+	1    3900 1800
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_3 X1
+U 1 1 684CF882
+P 3850 3100
+F 0 "X1" H 4000 3100 60  0000 C CNN
+F 1 "NAND_3" H 4300 3100 60  0000 C CNN
+F 2 "" H 3850 3100 60  0001 C CNN
+F 3 "" H 3850 3100 60  0001 C CNN
+	1    3850 3100
+	1    0    0    -1  
+$EndComp
+$Comp
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+U 1 1 684CF905
+P 3850 4350
+F 0 "X2" H 4000 4350 60  0000 C CNN
+F 1 "NAND_3" H 4300 4350 60  0000 C CNN
+F 2 "" H 3850 4350 60  0001 C CNN
+F 3 "" H 3850 4350 60  0001 C CNN
+	1    3850 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_3 X3
+U 1 1 684CF986
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+F 2 "" H 3850 5600 60  0001 C CNN
+F 3 "" H 3850 5600 60  0001 C CNN
+	1    3850 5600
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_2 X6
+U 1 1 684CFB07
+P 8000 2950
+F 0 "X6" H 8100 2950 60  0000 C CNN
+F 1 "NAND_2" H 8400 2950 60  0000 C CNN
+F 2 "" H 8000 2950 60  0001 C CNN
+F 3 "" H 8000 2950 60  0001 C CNN
+	1    8000 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L NAND_3 X5
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+P 7950 4400
+F 0 "X5" H 8100 4400 60  0000 C CNN
+F 1 "NAND_3" H 8400 4400 60  0000 C CNN
+F 2 "" H 7950 4400 60  0001 C CNN
+F 3 "" H 7950 4400 60  0001 C CNN
+	1    7950 4400
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74HC259/D_latch.sub b/library/SubcircuitLibrary/SN74HC259/D_latch.sub
new file mode 100644
index 000000000..be42d30cc
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/D_latch.sub
@@ -0,0 +1,17 @@
+* Subcircuit D_latch
+.subckt D_latch /le /d /re net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/d_latch/d_latch.cir
+.include NAND_2.sub
+.include NAND_3.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+* s c m o d e
+x4 net-_x2-pad6_ net-_u1-pad4_ net-_u1-pad5_ net-_x1-pad1_ net-_x1-pad5_ NAND_2
+x1 net-_x1-pad1_ /le net-_u1-pad4_ net-_u1-pad5_ net-_x1-pad5_ /re NAND_3
+x2 net-_x1-pad5_ /le net-_u1-pad4_ net-_u1-pad5_ net-_x2-pad5_ net-_x2-pad6_ NAND_3
+x3 net-_x2-pad5_ /d net-_u1-pad4_ net-_u1-pad5_ net-_x2-pad6_ /re NAND_3
+x6 net-_x1-pad5_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ NAND_2
+x5 net-_u1-pad6_ net-_x2-pad5_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad7_ /re NAND_3
+* Control Statements
+
+.ends D_latch
diff --git a/library/SubcircuitLibrary/SN74HC259/D_latch_Previous_Values.xml b/library/SubcircuitLibrary/SN74HC259/D_latch_Previous_Values.xml
new file mode 100644
index 000000000..d8d7bbcf4
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/D_latch_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x4><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x1><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x2><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x3><x6><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x6><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x5></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38-cache.lib b/library/SubcircuitLibrary/SN74HC259/Decoder_38-cache.lib
new file mode 100644
index 000000000..00b011e78
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38-cache.lib
@@ -0,0 +1,98 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# NAND_2
+#
+DEF NAND_2 X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "NAND_2" 400 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 400 0 255 787 -787 0 1 0 N 450 250 450 -250
+C 700 0 0 0 1 0 N
+C 700 0 50 0 1 0 N
+P 2 0 1 0 -300 250 450 250 N
+P 3 0 1 0 -300 250 -300 -250 450 -250 N
+X inA 1 -500 100 200 R 50 50 1 1 I
+X Gnd 2 0 -450 200 U 50 50 1 1 I
+X Vdd 3 0 450 200 D 50 50 1 1 I
+X Out 4 950 0 200 L 50 50 1 1 O
+X inB 5 -500 -100 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# NAND_3
+#
+DEF NAND_3 X 0 40 Y Y 1 F N
+F0 "X" 150 0 60 H V C CNN
+F1 "NAND_3" 450 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 500 0 255 787 -787 0 1 0 N 550 250 550 -250
+C 800 0 50 0 1 0 N
+P 2 0 1 0 -250 250 550 250 N
+P 3 0 1 0 -250 250 -250 -250 550 -250 N
+X inA 1 -450 150 200 R 50 50 1 1 I
+X inB 2 -450 0 200 R 50 50 1 1 I
+X Gnd 3 0 -450 200 U 50 50 1 1 I
+X Vdd 4 0 450 200 D 50 50 1 1 I
+X Out 5 1050 0 200 L 50 50 1 1 O
+X inC 6 -450 -150 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38-rescue.lib b/library/SubcircuitLibrary/SN74HC259/Decoder_38-rescue.lib
new file mode 100644
index 000000000..e66f87023
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38-rescue.lib
@@ -0,0 +1,46 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# NAND_2-RESCUE-Decoder_38
+#
+DEF NAND_2-RESCUE-Decoder_38 X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "NAND_2-RESCUE-Decoder_38" 400 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 400 0 255 787 -787 0 1 0 N 450 250 450 -250
+C 700 0 0 0 1 0 N
+C 700 0 50 0 1 0 N
+P 2 0 1 0 -300 250 450 250 N
+P 3 0 1 0 -300 250 -300 -250 450 -250 N
+X inA 1 -500 100 200 R 50 50 1 1 I
+X Gnd 2 0 -450 200 U 50 50 1 1 I
+X Vdd 3 0 450 200 D 50 50 1 1 I
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+ENDDRAW
+ENDDEF
+#
+# NAND_3-RESCUE-Decoder_38
+#
+DEF NAND_3-RESCUE-Decoder_38 X 0 40 Y Y 1 F N
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+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
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+C 800 0 50 0 1 0 N
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+X inC 5 -450 -150 200 R 50 50 1 1 I
+X Out 6 1050 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38.bak b/library/SubcircuitLibrary/SN74HC259/Decoder_38.bak
new file mode 100644
index 000000000..12de0aaf8
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38.bak
@@ -0,0 +1,745 @@
+EESchema Schematic File Version 2
+LIBS:Decoder_38-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:Decoder_38-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
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diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38.cir b/library/SubcircuitLibrary/SN74HC259/Decoder_38.cir
new file mode 100644
index 000000000..4a6e20d08
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38.cir
@@ -0,0 +1,28 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Decoder_38/Decoder_38.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 14 09:39:18 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+U1  /S0_Bar /S1_Bar /S2_Bar /S0 /S1 /S2 /G_Bar /Vdd /Gnd /d6 /d4 /d0 /d7 /d5 /d2 /d1 /d3 PORT		
+scmode1  SKY130mode		
+X4  /S0_Bar /S1_Bar /Gnd /Vdd Net-_X14-Pad1_ /S2_Bar NAND_3		
+X5  /S0_Bar /S1_Bar /Gnd /Vdd Net-_X5-Pad5_ /S2 NAND_3		
+X1  /S0_Bar /S1 /Gnd /Vdd Net-_X1-Pad5_ /S2_Bar NAND_3		
+X6  /S0_Bar /S1 /Gnd /Vdd Net-_X10-Pad1_ /S2 NAND_3		
+X2  /S0 /S1_Bar /Gnd /Vdd Net-_X16-Pad1_ /S2_Bar NAND_3		
+X7  /S0 /S1_Bar /Gnd /Vdd Net-_X12-Pad1_ /S2 NAND_3		
+X3  /S0 /S1 /Gnd /Vdd Net-_X13-Pad1_ /S2_Bar NAND_3		
+X8  /S0 /S1 /Gnd /Vdd Net-_X11-Pad1_ /S2 NAND_3		
+X11  Net-_X11-Pad1_ /Gnd /Vdd /d0 /G_Bar NAND_2		
+X13  Net-_X13-Pad1_ /Gnd /Vdd /d1 /G_Bar NAND_2		
+X12  Net-_X12-Pad1_ /Gnd /Vdd /d2 /G_Bar NAND_2		
+X16  Net-_X16-Pad1_ /Gnd /Vdd /d3 /G_Bar NAND_2		
+X10  Net-_X10-Pad1_ /Gnd /Vdd /d4 /G_Bar NAND_2		
+X15  Net-_X1-Pad5_ /Gnd /Vdd /d5 /G_Bar NAND_2		
+X9  Net-_X5-Pad5_ /Gnd /Vdd /d6 /G_Bar NAND_2		
+X14  Net-_X14-Pad1_ /Gnd /Vdd /d7 /G_Bar NAND_2		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38.cir.out b/library/SubcircuitLibrary/SN74HC259/Decoder_38.cir.out
new file mode 100644
index 000000000..66b8007cd
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38.cir.out
@@ -0,0 +1,33 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/decoder_38/decoder_38.cir
+
+.include NAND_2.sub
+.include NAND_3.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+* u1  /s0_bar /s1_bar /s2_bar /s0 /s1 /s2 /g_bar /vdd /gnd /d6 /d4 /d0 /d7 /d5 /d2 /d1 /d3 port
+* s c m o d e
+x4 /s0_bar /s1_bar /gnd /vdd net-_x14-pad1_ /s2_bar NAND_3
+x5 /s0_bar /s1_bar /gnd /vdd net-_x5-pad5_ /s2 NAND_3
+x1 /s0_bar /s1 /gnd /vdd net-_x1-pad5_ /s2_bar NAND_3
+x6 /s0_bar /s1 /gnd /vdd net-_x10-pad1_ /s2 NAND_3
+x2 /s0 /s1_bar /gnd /vdd net-_x16-pad1_ /s2_bar NAND_3
+x7 /s0 /s1_bar /gnd /vdd net-_x12-pad1_ /s2 NAND_3
+x3 /s0 /s1 /gnd /vdd net-_x13-pad1_ /s2_bar NAND_3
+x8 /s0 /s1 /gnd /vdd net-_x11-pad1_ /s2 NAND_3
+x11 net-_x11-pad1_ /gnd /vdd /d0 /g_bar NAND_2
+x13 net-_x13-pad1_ /gnd /vdd /d1 /g_bar NAND_2
+x12 net-_x12-pad1_ /gnd /vdd /d2 /g_bar NAND_2
+x16 net-_x16-pad1_ /gnd /vdd /d3 /g_bar NAND_2
+x10 net-_x10-pad1_ /gnd /vdd /d4 /g_bar NAND_2
+x15 net-_x1-pad5_ /gnd /vdd /d5 /g_bar NAND_2
+x9 net-_x5-pad5_ /gnd /vdd /d6 /g_bar NAND_2
+x14 net-_x14-pad1_ /gnd /vdd /d7 /g_bar NAND_2
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38.pro b/library/SubcircuitLibrary/SN74HC259/Decoder_38.pro
new file mode 100644
index 000000000..3b4e7cf7a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38.pro
@@ -0,0 +1,74 @@
+update=Sat Jun 14 09:34:32 2025
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=Decoder_38-rescue
+LibName2=adc-dac
+LibName3=memory
+LibName4=xilinx
+LibName5=microcontrollers
+LibName6=dsp
+LibName7=microchip
+LibName8=analog_switches
+LibName9=motorola
+LibName10=texas
+LibName11=intel
+LibName12=audio
+LibName13=interface
+LibName14=digital-audio
+LibName15=philips
+LibName16=display
+LibName17=cypress
+LibName18=siliconi
+LibName19=opto
+LibName20=atmel
+LibName21=contrib
+LibName22=power
+LibName23=eSim_Plot
+LibName24=transistors
+LibName25=conn
+LibName26=eSim_User
+LibName27=regul
+LibName28=74xx
+LibName29=cmos4000
+LibName30=eSim_Analog
+LibName31=eSim_Devices
+LibName32=eSim_Digital
+LibName33=eSim_Hybrid
+LibName34=eSim_Miscellaneous
+LibName35=eSim_Power
+LibName36=eSim_Sources
+LibName37=eSim_Subckt
+LibName38=eSim_Nghdl
+LibName39=eSim_Ngveri
+LibName40=eSim_SKY130
+LibName41=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38.sch b/library/SubcircuitLibrary/SN74HC259/Decoder_38.sch
new file mode 100644
index 000000000..935b86cf1
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38.sch
@@ -0,0 +1,745 @@
+EESchema Schematic File Version 2
+LIBS:Decoder_38-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:Decoder_38-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+Connection ~ 1150 2900
+Connection ~ 1150 3050
+Connection ~ 1150 3200
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+Connection ~ 1150 3800
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+Wire Wire Line
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+P 900 2900
+F 0 "U1" H 950 3000 30  0000 C CNN
+F 1 "PORT" H 900 2900 30  0000 C CNN
+F 2 "" H 900 2900 60  0000 C CNN
+F 3 "" H 900 2900 60  0000 C CNN
+	1    900  2900
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+F 3 "" H 900 3050 60  0000 C CNN
+	2    900  3050
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+F 0 "U1" H 950 3300 30  0000 C CNN
+F 1 "PORT" H 900 3200 30  0000 C CNN
+F 2 "" H 900 3200 60  0000 C CNN
+F 3 "" H 900 3200 60  0000 C CNN
+	3    900  3200
+	1    0    0    -1  
+$EndComp
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+U 4 1 684B50ED
+P 900 3500
+F 0 "U1" H 950 3600 30  0000 C CNN
+F 1 "PORT" H 900 3500 30  0000 C CNN
+F 2 "" H 900 3500 60  0000 C CNN
+F 3 "" H 900 3500 60  0000 C CNN
+	4    900  3500
+	1    0    0    -1  
+$EndComp
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+F 1 "PORT" H 900 3650 30  0000 C CNN
+F 2 "" H 900 3650 60  0000 C CNN
+F 3 "" H 900 3650 60  0000 C CNN
+	5    900  3650
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+$EndComp
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+F 1 "PORT" H 900 3800 30  0000 C CNN
+F 2 "" H 900 3800 60  0000 C CNN
+F 3 "" H 900 3800 60  0000 C CNN
+	6    900  3800
+	1    0    0    -1  
+$EndComp
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+U 7 1 684B53AC
+P 950 8800
+F 0 "U1" H 1000 8900 30  0000 C CNN
+F 1 "PORT" H 950 8800 30  0000 C CNN
+F 2 "" H 950 8800 60  0000 C CNN
+F 3 "" H 950 8800 60  0000 C CNN
+	7    950  8800
+	1    0    0    -1  
+$EndComp
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+S1_Bar
+Text Label 1150 3200 0    60   ~ 0
+S2_Bar
+Text Label 1150 3500 0    60   ~ 0
+S0
+Text Label 1150 3650 0    60   ~ 0
+S1
+Text Label 1150 3800 0    60   ~ 0
+S2
+$Comp
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+U 8 1 684B5AAA
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+F 1 "PORT" H 4300 600 30  0000 C CNN
+F 2 "" H 4300 600 60  0000 C CNN
+F 3 "" H 4300 600 60  0000 C CNN
+	8    4300 600 
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 684B5B1B
+P 4350 1300
+F 0 "U1" H 4400 1400 30  0000 C CNN
+F 1 "PORT" H 4350 1300 30  0000 C CNN
+F 2 "" H 4350 1300 60  0000 C CNN
+F 3 "" H 4350 1300 60  0000 C CNN
+	9    4350 1300
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4050 600  4000 600 
+Wire Wire Line
+	4000 600  4000 500 
+Connection ~ 4000 500 
+Wire Wire Line
+	4100 1300 4100 1400
+Connection ~ 4100 1400
+Text Label 4000 500  0    60   ~ 0
+Vdd
+Text Label 4100 1400 0    60   ~ 0
+Gnd
+$Comp
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+U 13 1 684B5F75
+P 6900 950
+F 0 "U1" H 6950 1050 30  0000 C CNN
+F 1 "PORT" H 6900 950 30  0000 C CNN
+F 2 "" H 6900 950 60  0000 C CNN
+F 3 "" H 6900 950 60  0000 C CNN
+	13   6900 950 
+	-1   0    0    -1  
+$EndComp
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+U 10 1 684B6132
+P 6750 1950
+F 0 "U1" H 6800 2050 30  0000 C CNN
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+F 3 "" H 6750 1950 60  0000 C CNN
+	10   6750 1950
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+$EndComp
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+F 2 "" H 6900 2950 60  0000 C CNN
+F 3 "" H 6900 2950 60  0000 C CNN
+	14   6900 2950
+	-1   0    0    -1  
+$EndComp
+$Comp
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+U 11 1 684B63FD
+P 6750 4000
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+F 3 "" H 6750 4000 60  0000 C CNN
+	11   6750 4000
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+$EndComp
+$Comp
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+F 3 "" H 6950 5000 60  0000 C CNN
+	17   6950 5000
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+$EndComp
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+F 2 "" H 6900 6000 60  0000 C CNN
+F 3 "" H 6900 6000 60  0000 C CNN
+	15   6900 6000
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+$Comp
+L PORT U1
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+P 6800 8100
+F 0 "U1" H 6850 8200 30  0000 C CNN
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+F 2 "" H 6800 8100 60  0000 C CNN
+F 3 "" H 6800 8100 60  0000 C CNN
+	12   6800 8100
+	-1   0    0    -1  
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+d7
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+d6
+Text Label 6550 2950 0    60   ~ 0
+d5
+Text Label 6400 4000 0    60   ~ 0
+d4
+Text Label 6600 5000 0    60   ~ 0
+d3
+Text Label 6450 6000 0    60   ~ 0
+d2
+Text Label 6550 7050 0    60   ~ 0
+d1
+Text Label 6400 8100 0    60   ~ 0
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+$Comp
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+F 1 "SKY130mode" H 9300 2650 118 0000 C CNB
+F 2 "" H 9300 2900 60  0001 C CNN
+F 3 "" H 9300 2900 60  0001 C CNN
+	1    9300 2750
+	1    0    0    -1  
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+	1    5400 1950
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+F 3 "" H 5600 950 60  0001 C CNN
+	1    5600 950 
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diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38.sub b/library/SubcircuitLibrary/SN74HC259/Decoder_38.sub
new file mode 100644
index 000000000..67271ac43
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38.sub
@@ -0,0 +1,27 @@
+* Subcircuit Decoder_38
+.subckt Decoder_38 /s0_bar /s1_bar /s2_bar /s0 /s1 /s2 /g_bar /vdd /gnd /d6 /d4 /d0 /d7 /d5 /d2 /d1 /d3 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/decoder_38/decoder_38.cir
+.include NAND_2.sub
+.include NAND_3.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+* s c m o d e
+x4 /s0_bar /s1_bar /gnd /vdd net-_x14-pad1_ /s2_bar NAND_3
+x5 /s0_bar /s1_bar /gnd /vdd net-_x5-pad5_ /s2 NAND_3
+x1 /s0_bar /s1 /gnd /vdd net-_x1-pad5_ /s2_bar NAND_3
+x6 /s0_bar /s1 /gnd /vdd net-_x10-pad1_ /s2 NAND_3
+x2 /s0 /s1_bar /gnd /vdd net-_x16-pad1_ /s2_bar NAND_3
+x7 /s0 /s1_bar /gnd /vdd net-_x12-pad1_ /s2 NAND_3
+x3 /s0 /s1 /gnd /vdd net-_x13-pad1_ /s2_bar NAND_3
+x8 /s0 /s1 /gnd /vdd net-_x11-pad1_ /s2 NAND_3
+x11 net-_x11-pad1_ /gnd /vdd /d0 /g_bar NAND_2
+x13 net-_x13-pad1_ /gnd /vdd /d1 /g_bar NAND_2
+x12 net-_x12-pad1_ /gnd /vdd /d2 /g_bar NAND_2
+x16 net-_x16-pad1_ /gnd /vdd /d3 /g_bar NAND_2
+x10 net-_x10-pad1_ /gnd /vdd /d4 /g_bar NAND_2
+x15 net-_x1-pad5_ /gnd /vdd /d5 /g_bar NAND_2
+x9 net-_x5-pad5_ /gnd /vdd /d6 /g_bar NAND_2
+x14 net-_x14-pad1_ /gnd /vdd /d7 /g_bar NAND_2
+* Control Statements
+
+.ends Decoder_38
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage-cache.lib b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage-cache.lib
new file mode 100644
index 000000000..5d471583c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage-cache.lib
@@ -0,0 +1,104 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# D_Latch
+#
+DEF D_Latch X 0 40 Y Y 1 F N
+F0 "X" 100 -100 60 H V C CNN
+F1 "D_Latch" 100 50 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -500 500 650 -450 0 1 0 N
+X D 1 -700 300 200 R 50 50 1 1 I
+X LE 2 -700 0 200 R 50 50 1 1 I
+X RE 3 -700 -300 200 R 50 50 1 1 I
+X Gnd 4 0 -650 200 U 50 50 1 1 I
+X Vdd 5 0 700 200 D 50 50 1 1 I
+X Q 6 850 200 200 L 50 50 1 1 O
+X Q_Bar 7 850 -150 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Decoder_38
+#
+DEF Decoder_38 X 0 40 Y Y 1 F N
+F0 "X" 0 -200 60 H V C CNN
+F1 "Decoder_38" 0 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -700 1200 700 -1200 0 1 0 N
+X S0_Bar 1 -900 850 200 R 50 50 1 1 I
+X S1_Bar 2 -900 550 200 R 50 50 1 1 I
+X S2_Bar 3 -900 250 200 R 50 50 1 1 I
+X S0 4 -900 -300 200 R 50 50 1 1 I
+X S1 5 -900 -600 200 R 50 50 1 1 I
+X S2 6 -900 -900 200 R 50 50 1 1 I
+X G_Bar 7 -900 0 200 R 50 50 1 1 I
+X Vdd 8 0 1400 200 D 50 50 1 1 I
+X Gnd 9 0 -1400 200 U 50 50 1 1 I
+X d6 10 900 -650 200 L 50 50 1 1 O
+X d4 11 900 -150 200 L 50 50 1 1 O
+X d0 12 900 900 200 L 50 50 1 1 O
+X d7 13 900 -900 200 L 50 50 1 1 O
+X d5 14 900 -400 200 L 50 50 1 1 O
+X d2 15 900 400 200 L 50 50 1 1 O
+X d1 16 900 650 200 L 50 50 1 1 O
+X d3 17 900 150 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.bak b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.bak
new file mode 100644
index 000000000..584a16a11
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.bak
@@ -0,0 +1,583 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:Decoder_38_Address_Latch_storage-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
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+F 2 "" H 2100 1700 60  0001 C CNN
+F 3 "" H 2100 1700 60  0001 C CNN
+	1    2100 1700
+	-1   0    0    -1  
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+F 2 "" H 1950 3300 60  0001 C CNN
+F 3 "" H 1950 3300 60  0001 C CNN
+	1    1950 3300
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+$EndComp
+$Comp
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+F 2 "" H 2100 4750 60  0001 C CNN
+F 3 "" H 2100 4750 60  0001 C CNN
+	1    2100 4750
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+$Comp
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+F 3 "" H 2200 6350 60  0001 C CNN
+	1    2200 6350
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+F 3 "" H 4650 1700 60  0001 C CNN
+	1    4650 1700
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+	12   6650 1400
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+$Comp
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+F 2 "" H 3500 1500 60  0000 C CNN
+F 3 "" H 3500 1500 60  0000 C CNN
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+F 3 "" H 8450 3400 60  0001 C CNN
+	1    8450 3400
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+$EndComp
+$Comp
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+F 3 "" H 9900 2550 60  0000 C CNN
+	13   9900 2550
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+$EndComp
+$Comp
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+F 2 "" H 9900 2850 60  0000 C CNN
+F 3 "" H 9900 2850 60  0000 C CNN
+	14   9900 2850
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
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+F 2 "" H 9900 3150 60  0000 C CNN
+F 3 "" H 9900 3150 60  0000 C CNN
+	15   9900 3150
+	-1   0    0    -1  
+$EndComp
+$Comp
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+$EndComp
+$Comp
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+$Comp
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+F 3 "" H 9900 4000 60  0000 C CNN
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+$EndComp
+$Comp
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+F 2 "" H 9900 4300 60  0000 C CNN
+F 3 "" H 9900 4300 60  0000 C CNN
+	19   9900 4300
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+$EndComp
+Wire Wire Line
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+F 2 "" H 10150 1450 60  0001 C CNN
+F 3 "" H 10150 1450 60  0001 C CNN
+	1    10150 1300
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+$EndComp
+NoConn ~ 1250 1850
+NoConn ~ 3800 1850
+NoConn ~ 1100 3450
+NoConn ~ 3900 3450
+NoConn ~ 1250 4900
+NoConn ~ 4100 4900
+NoConn ~ 1350 6500
+NoConn ~ 4300 6500
+NoConn ~ 17800 2250
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.cir b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.cir
new file mode 100644
index 000000000..af8ba3eaa
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.cir
@@ -0,0 +1,21 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Decoder_38_Address_Latch_storage/Decoder_38_Address_Latch_storage.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 14 09:52:10 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ /Vdd /Gnd Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad9_ Net-_U1-Pad10_ Net-_U1-Pad11_ /D Net-_U1-Pad13_ Net-_U1-Pad14_ Net-_U1-Pad15_ Net-_U1-Pad16_ Net-_U1-Pad17_ Net-_U1-Pad18_ Net-_U1-Pad19_ PORT		
+scmode1  SKY130mode		
+X2  /D Net-_X2-Pad2_ Net-_U1-Pad11_ /Gnd /Vdd Net-_U1-Pad3_ ? D_Latch		
+X1  /D Net-_X1-Pad2_ Net-_U1-Pad11_ /Gnd /Vdd Net-_U1-Pad1_ ? D_Latch		
+X3  /D Net-_X3-Pad2_ Net-_U1-Pad11_ /Gnd /Vdd Net-_U1-Pad2_ ? D_Latch		
+X4  /D Net-_X4-Pad2_ Net-_U1-Pad11_ /Gnd /Vdd Net-_U1-Pad4_ ? D_Latch		
+X8  /D Net-_X8-Pad2_ Net-_U1-Pad11_ /Gnd /Vdd Net-_U1-Pad10_ ? D_Latch		
+X7  /D Net-_X7-Pad2_ Net-_U1-Pad11_ /Gnd /Vdd Net-_U1-Pad9_ ? D_Latch		
+X6  /D Net-_X6-Pad2_ Net-_U1-Pad11_ /Gnd /Vdd Net-_U1-Pad8_ ? D_Latch		
+X5  /D Net-_X5-Pad2_ Net-_U1-Pad11_ /Gnd /Vdd Net-_U1-Pad7_ ? D_Latch		
+X9  Net-_U1-Pad13_ Net-_U1-Pad14_ Net-_U1-Pad15_ Net-_U1-Pad17_ Net-_U1-Pad18_ Net-_U1-Pad19_ Net-_U1-Pad16_ /Vdd /Vdd Net-_X7-Pad2_ Net-_X5-Pad2_ Net-_X1-Pad2_ Net-_X8-Pad2_ Net-_X6-Pad2_ Net-_X3-Pad2_ Net-_X2-Pad2_ Net-_X4-Pad2_ Decoder_38		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.cir.out b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.cir.out
new file mode 100644
index 000000000..44855644c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.cir.out
@@ -0,0 +1,26 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/decoder_38_address_latch_storage/decoder_38_address_latch_storage.cir
+
+.include D_latch.sub
+.include Decoder_38.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ /vdd /gnd net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ /d net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ net-_u1-pad17_ net-_u1-pad18_ net-_u1-pad19_ port
+* s c m o d e
+x2 /d net-_x2-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad3_ ? D_latch
+x1 /d net-_x1-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad1_ ? D_latch
+x3 /d net-_x3-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad2_ ? D_latch
+x4 /d net-_x4-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad4_ ? D_latch
+x8 /d net-_x8-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad10_ ? D_latch
+x7 /d net-_x7-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad9_ ? D_latch
+x6 /d net-_x6-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad8_ ? D_latch
+x5 /d net-_x5-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad7_ ? D_latch
+x9 net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad17_ net-_u1-pad18_ net-_u1-pad19_ net-_u1-pad16_ /vdd /vdd net-_x7-pad2_ net-_x5-pad2_ net-_x1-pad2_ net-_x8-pad2_ net-_x6-pad2_ net-_x3-pad2_ net-_x2-pad2_ net-_x4-pad2_ Decoder_38
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.pro b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.sch b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.sch
new file mode 100644
index 000000000..d9508a2dc
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.sch
@@ -0,0 +1,583 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:Decoder_38_Address_Latch_storage-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+Wire Wire Line
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+Connection ~ 3450 5650
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+Text Label 6200 1400 0    60   ~ 0
+D
+Text Label 3450 1000 0    60   ~ 0
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+Text Label 3300 2350 0    60   ~ 0
+Gnd
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+$Comp
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+F 3 "" H 6650 1400 60  0000 C CNN
+	12   6650 1400
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+$EndComp
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+F 2 "" H 5650 2200 60  0000 C CNN
+F 3 "" H 5650 2200 60  0000 C CNN
+	11   5650 2200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
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+F 2 "" H 3200 800 60  0000 C CNN
+F 3 "" H 3200 800 60  0000 C CNN
+	5    3200 800 
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 3 "" H 3300 1950 60  0000 C CNN
+	6    3300 1950
+	0    1    1    0   
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684BA46C
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+F 1 "PORT" H 850 1500 30  0000 C CNN
+F 2 "" H 850 1500 60  0000 C CNN
+F 3 "" H 850 1500 60  0000 C CNN
+	3    850  1500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684BA757
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+F 1 "PORT" H 750 3100 30  0000 C CNN
+F 2 "" H 750 3100 60  0000 C CNN
+F 3 "" H 750 3100 60  0000 C CNN
+	1    750  3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684BA82C
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+F 1 "PORT" H 800 4550 30  0000 C CNN
+F 2 "" H 800 4550 60  0000 C CNN
+F 3 "" H 800 4550 60  0000 C CNN
+	2    800  4550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684BA923
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+F 1 "PORT" H 900 6150 30  0000 C CNN
+F 2 "" H 900 6150 60  0000 C CNN
+F 3 "" H 900 6150 60  0000 C CNN
+	4    900  6150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
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+F 0 "U1" H 4000 6250 30  0000 C CNN
+F 1 "PORT" H 3950 6150 30  0000 C CNN
+F 2 "" H 3950 6150 60  0000 C CNN
+F 3 "" H 3950 6150 60  0000 C CNN
+	10   3950 6150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
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+F 1 "PORT" H 3750 4550 30  0000 C CNN
+F 2 "" H 3750 4550 60  0000 C CNN
+F 3 "" H 3750 4550 60  0000 C CNN
+	9    3750 4550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 8 1 684BAB6F
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+F 1 "PORT" H 3600 3100 30  0000 C CNN
+F 2 "" H 3600 3100 60  0000 C CNN
+F 3 "" H 3600 3100 60  0000 C CNN
+	8    3600 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 684BAC3A
+P 3500 1500
+F 0 "U1" H 3550 1600 30  0000 C CNN
+F 1 "PORT" H 3500 1500 30  0000 C CNN
+F 2 "" H 3500 1500 60  0000 C CNN
+F 3 "" H 3500 1500 60  0000 C CNN
+	7    3500 1500
+	1    0    0    -1  
+$EndComp
+Connection ~ 6200 1400
+Wire Wire Line
+	5900 2200 6000 2200
+Connection ~ 6000 2200
+Wire Wire Line
+	3750 1500 3800 1500
+Wire Wire Line
+	3850 3100 3900 3100
+Wire Wire Line
+	4000 4550 4100 4550
+Wire Wire Line
+	4200 6150 4300 6150
+Wire Wire Line
+	1150 6150 1350 6150
+Wire Wire Line
+	1050 4550 1250 4550
+Wire Wire Line
+	1000 3100 1100 3100
+Wire Wire Line
+	1100 1500 1250 1500
+Wire Wire Line
+	7550 2500 6400 2500
+Wire Wire Line
+	6400 2500 6400 2900
+Wire Wire Line
+	6400 2900 2800 2900
+Wire Wire Line
+	2800 2900 2800 3300
+Wire Wire Line
+	2800 3300 2650 3300
+Wire Wire Line
+	7550 2750 4850 2750
+Wire Wire Line
+	4850 2750 4850 2400
+Wire Wire Line
+	4850 2400 2900 2400
+Wire Wire Line
+	2900 2400 2900 1700
+Wire Wire Line
+	2900 1700 2800 1700
+Wire Wire Line
+	2800 4750 3550 4750
+Wire Wire Line
+	3550 4750 3550 3650
+Wire Wire Line
+	3550 3650 6550 3650
+Wire Wire Line
+	6550 3650 6550 3000
+Wire Wire Line
+	6550 3000 7550 3000
+Wire Wire Line
+	2900 6350 3600 6350
+Wire Wire Line
+	3600 6350 3600 3700
+Wire Wire Line
+	3600 3700 6650 3700
+Wire Wire Line
+	6650 3700 6650 3250
+Wire Wire Line
+	6650 3250 7550 3250
+Wire Wire Line
+	7550 3550 6700 3550
+Wire Wire Line
+	6700 3550 6700 1700
+Wire Wire Line
+	6700 1700 5350 1700
+Wire Wire Line
+	7550 3800 6850 3800
+Wire Wire Line
+	6850 3800 6850 3300
+Wire Wire Line
+	6850 3300 5450 3300
+Wire Wire Line
+	5650 4750 6450 4750
+Wire Wire Line
+	6450 4750 6450 4050
+Wire Wire Line
+	6450 4050 7550 4050
+Wire Wire Line
+	5850 6350 6650 6350
+Wire Wire Line
+	6650 6350 6650 4300
+Wire Wire Line
+	6650 4300 7550 4300
+Wire Wire Line
+	8450 4800 8450 5500
+Wire Wire Line
+	8450 5500 3450 5500
+Connection ~ 3450 5500
+Wire Wire Line
+	3450 900  8450 900 
+Wire Wire Line
+	8450 900  8450 2000
+Connection ~ 3450 900 
+$Comp
+L PORT U1
+U 13 1 684B9841
+P 9900 2550
+F 0 "U1" H 9950 2650 30  0000 C CNN
+F 1 "PORT" H 9900 2550 30  0000 C CNN
+F 2 "" H 9900 2550 60  0000 C CNN
+F 3 "" H 9900 2550 60  0000 C CNN
+	13   9900 2550
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 14 1 684B989E
+P 9900 2850
+F 0 "U1" H 9950 2950 30  0000 C CNN
+F 1 "PORT" H 9900 2850 30  0000 C CNN
+F 2 "" H 9900 2850 60  0000 C CNN
+F 3 "" H 9900 2850 60  0000 C CNN
+	14   9900 2850
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 15 1 684B9931
+P 9900 3150
+F 0 "U1" H 9950 3250 30  0000 C CNN
+F 1 "PORT" H 9900 3150 30  0000 C CNN
+F 2 "" H 9900 3150 60  0000 C CNN
+F 3 "" H 9900 3150 60  0000 C CNN
+	15   9900 3150
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 16 1 684B99A6
+P 9900 3400
+F 0 "U1" H 9950 3500 30  0000 C CNN
+F 1 "PORT" H 9900 3400 30  0000 C CNN
+F 2 "" H 9900 3400 60  0000 C CNN
+F 3 "" H 9900 3400 60  0000 C CNN
+	16   9900 3400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 17 1 684B9A1F
+P 9900 3700
+F 0 "U1" H 9950 3800 30  0000 C CNN
+F 1 "PORT" H 9900 3700 30  0000 C CNN
+F 2 "" H 9900 3700 60  0000 C CNN
+F 3 "" H 9900 3700 60  0000 C CNN
+	17   9900 3700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 18 1 684B9B14
+P 9900 4000
+F 0 "U1" H 9950 4100 30  0000 C CNN
+F 1 "PORT" H 9900 4000 30  0000 C CNN
+F 2 "" H 9900 4000 60  0000 C CNN
+F 3 "" H 9900 4000 60  0000 C CNN
+	18   9900 4000
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 19 1 684B9B8D
+P 9900 4300
+F 0 "U1" H 9950 4400 30  0000 C CNN
+F 1 "PORT" H 9900 4300 30  0000 C CNN
+F 2 "" H 9900 4300 60  0000 C CNN
+F 3 "" H 9900 4300 60  0000 C CNN
+	19   9900 4300
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	9350 2550 9650 2550
+Wire Wire Line
+	9350 2850 9650 2850
+Wire Wire Line
+	9350 3150 9650 3150
+Wire Wire Line
+	9350 3400 9650 3400
+Wire Wire Line
+	9350 3700 9650 3700
+Wire Wire Line
+	9350 4000 9650 4000
+Wire Wire Line
+	9350 4300 9650 4300
+$Comp
+L SKY130mode scmode1
+U 1 1 684BA49C
+P 10150 1300
+F 0 "scmode1" H 10150 1450 98  0000 C CNB
+F 1 "SKY130mode" H 10150 1200 118 0000 C CNB
+F 2 "" H 10150 1450 60  0001 C CNN
+F 3 "" H 10150 1450 60  0001 C CNN
+	1    10150 1300
+	1    0    0    -1  
+$EndComp
+NoConn ~ 1250 1850
+NoConn ~ 3800 1850
+NoConn ~ 1100 3450
+NoConn ~ 3900 3450
+NoConn ~ 1250 4900
+NoConn ~ 4100 4900
+NoConn ~ 1350 6500
+NoConn ~ 4300 6500
+NoConn ~ 17800 2250
+$Comp
+L D_Latch X2
+U 1 1 684CF9C0
+P 2100 1700
+F 0 "X2" H 2200 1600 60  0000 C CNN
+F 1 "D_Latch" H 2200 1750 60  0000 C CNN
+F 2 "" H 2100 1700 60  0001 C CNN
+F 3 "" H 2100 1700 60  0001 C CNN
+	1    2100 1700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L D_Latch X1
+U 1 1 684CFAF2
+P 1950 3300
+F 0 "X1" H 2050 3200 60  0000 C CNN
+F 1 "D_Latch" H 2050 3350 60  0000 C CNN
+F 2 "" H 1950 3300 60  0001 C CNN
+F 3 "" H 1950 3300 60  0001 C CNN
+	1    1950 3300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L D_Latch X3
+U 1 1 684D09F6
+P 2100 4750
+F 0 "X3" H 2200 4650 60  0000 C CNN
+F 1 "D_Latch" H 2200 4800 60  0000 C CNN
+F 2 "" H 2100 4750 60  0001 C CNN
+F 3 "" H 2100 4750 60  0001 C CNN
+	1    2100 4750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L D_Latch X4
+U 1 1 684D0B3B
+P 2200 6350
+F 0 "X4" H 2300 6250 60  0000 C CNN
+F 1 "D_Latch" H 2300 6400 60  0000 C CNN
+F 2 "" H 2200 6350 60  0001 C CNN
+F 3 "" H 2200 6350 60  0001 C CNN
+	1    2200 6350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L D_Latch X8
+U 1 1 684D0C60
+P 5150 6350
+F 0 "X8" H 5250 6250 60  0000 C CNN
+F 1 "D_Latch" H 5250 6400 60  0000 C CNN
+F 2 "" H 5150 6350 60  0001 C CNN
+F 3 "" H 5150 6350 60  0001 C CNN
+	1    5150 6350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L D_Latch X7
+U 1 1 684D0D81
+P 4950 4750
+F 0 "X7" H 5050 4650 60  0000 C CNN
+F 1 "D_Latch" H 5050 4800 60  0000 C CNN
+F 2 "" H 4950 4750 60  0001 C CNN
+F 3 "" H 4950 4750 60  0001 C CNN
+	1    4950 4750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L D_Latch X6
+U 1 1 684D0EF8
+P 4750 3300
+F 0 "X6" H 4850 3200 60  0000 C CNN
+F 1 "D_Latch" H 4850 3350 60  0000 C CNN
+F 2 "" H 4750 3300 60  0001 C CNN
+F 3 "" H 4750 3300 60  0001 C CNN
+	1    4750 3300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L D_Latch X5
+U 1 1 684D103D
+P 4650 1700
+F 0 "X5" H 4750 1600 60  0000 C CNN
+F 1 "D_Latch" H 4750 1750 60  0000 C CNN
+F 2 "" H 4650 1700 60  0001 C CNN
+F 3 "" H 4650 1700 60  0001 C CNN
+	1    4650 1700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L Decoder_38 X9
+U 1 1 684D1335
+P 8450 3400
+F 0 "X9" H 8450 3200 60  0000 C CNN
+F 1 "Decoder_38" H 8450 3400 60  0000 C CNN
+F 2 "" H 8450 3400 60  0001 C CNN
+F 3 "" H 8450 3400 60  0001 C CNN
+	1    8450 3400
+	-1   0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.sub b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.sub
new file mode 100644
index 000000000..8175b2236
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage.sub
@@ -0,0 +1,20 @@
+* Subcircuit Decoder_38_Address_Latch_storage
+.subckt Decoder_38_Address_Latch_storage net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ /vdd /gnd net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ /d net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ net-_u1-pad17_ net-_u1-pad18_ net-_u1-pad19_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/decoder_38_address_latch_storage/decoder_38_address_latch_storage.cir
+.include D_latch.sub
+.include Decoder_38.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+* s c m o d e
+x2 /d net-_x2-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad3_ ? D_latch
+x1 /d net-_x1-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad1_ ? D_latch
+x3 /d net-_x3-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad2_ ? D_latch
+x4 /d net-_x4-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad4_ ? D_latch
+x8 /d net-_x8-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad10_ ? D_latch
+x7 /d net-_x7-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad9_ ? D_latch
+x6 /d net-_x6-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad8_ ? D_latch
+x5 /d net-_x5-pad2_ net-_u1-pad11_ /gnd /vdd net-_u1-pad7_ ? D_latch
+x9 net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad17_ net-_u1-pad18_ net-_u1-pad19_ net-_u1-pad16_ /vdd /vdd net-_x7-pad2_ net-_x5-pad2_ net-_x1-pad2_ net-_x8-pad2_ net-_x6-pad2_ net-_x3-pad2_ net-_x2-pad2_ net-_x4-pad2_ Decoder_38
+* Control Statements
+
+.ends Decoder_38_Address_Latch_storage
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage_Previous_Values.xml b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage_Previous_Values.xml
new file mode 100644
index 000000000..f954fbc7b
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Address_Latch_storage_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_latch</field></x2><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_latch</field></x1><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_latch</field></x3><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_latch</field></x4><x8><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_latch</field></x8><x7><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_latch</field></x7><x6><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_latch</field></x6><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/D_latch</field></x5><x9><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Decoder_38</field></x9></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74HC259/Decoder_38_Previous_Values.xml b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Previous_Values.xml
new file mode 100644
index 000000000..b91e445ab
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Decoder_38_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x4><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x5><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x1><x6><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x6><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x2><x7><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x7><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x3><x8><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3</field></x8><x11><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x11><x13><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x13><x12><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x12><x16><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x16><x10><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x10><x15><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x15><x9><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x9><x14><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2</field></x14></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_2-cache.lib b/library/SubcircuitLibrary/SN74HC259/NAND_2-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_2-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_2.bak b/library/SubcircuitLibrary/SN74HC259/NAND_2.bak
new file mode 100644
index 000000000..ad9819396
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_2.bak
@@ -0,0 +1,221 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 684AF0E9
+P 4750 2050
+F 0 "SC2" H 4800 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5050 2137 50  0000 R CNN
+F 2 "" H 4750 550 50  0001 C CNN
+F 3 "" H 4750 2050 50  0001 C CNN
+	1    4750 2050
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684AF14C
+P 5150 2750
+F 0 "SC3" H 5200 3050 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5450 2837 50  0000 R CNN
+F 2 "" H 5150 1250 50  0001 C CNN
+F 3 "" H 5150 2750 50  0001 C CNN
+	1    5150 2750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF1CF
+P 4200 3600
+F 0 "SC1" H 4250 3900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4500 3687 50  0000 R CNN
+F 2 "" H 4200 2100 50  0001 C CNN
+F 3 "" H 4200 3600 50  0001 C CNN
+	1    4200 3600
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 684AF20C
+P 5550 3600
+F 0 "SC4" H 5600 3900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5850 3687 50  0000 R CNN
+F 2 "" H 5550 2100 50  0001 C CNN
+F 3 "" H 5550 3600 50  0001 C CNN
+	1    5550 3600
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF271
+P 4650 1550
+F 0 "U1" H 4700 1650 30  0000 C CNN
+F 1 "PORT" H 4650 1550 30  0000 C CNN
+F 2 "" H 4650 1550 60  0000 C CNN
+F 3 "" H 4650 1550 60  0000 C CNN
+	3    4650 1550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF336
+P 3550 2650
+F 0 "U1" H 3600 2750 30  0000 C CNN
+F 1 "PORT" H 3550 2650 30  0000 C CNN
+F 2 "" H 3550 2650 60  0000 C CNN
+F 3 "" H 3550 2650 60  0000 C CNN
+	1    3550 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AF413
+P 6200 2750
+F 0 "U1" H 6250 2850 30  0000 C CNN
+F 1 "PORT" H 6200 2750 30  0000 C CNN
+F 2 "" H 6200 2750 60  0000 C CNN
+F 3 "" H 6200 2750 60  0000 C CNN
+	4    6200 2750
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF82C
+P 6200 3150
+F 0 "U1" H 6250 3250 30  0000 C CNN
+F 1 "PORT" H 6200 3150 30  0000 C CNN
+F 2 "" H 6200 3150 60  0000 C CNN
+F 3 "" H 6200 3150 60  0000 C CNN
+	5    6200 3150
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF895
+P 4550 4050
+F 0 "U1" H 4600 4150 30  0000 C CNN
+F 1 "PORT" H 4550 4050 30  0000 C CNN
+F 2 "" H 4550 4050 60  0000 C CNN
+F 3 "" H 4550 4050 60  0000 C CNN
+	2    4550 4050
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4400 3900 5350 3900
+Wire Wire Line
+	4800 4050 4800 3900
+Connection ~ 4800 3900
+Wire Wire Line
+	4300 3600 4450 3600
+Wire Wire Line
+	4450 3600 4450 3900
+Connection ~ 4450 3900
+Wire Wire Line
+	5450 3600 5300 3600
+Wire Wire Line
+	5300 3600 5300 3900
+Connection ~ 5300 3900
+Wire Wire Line
+	4400 3300 5350 3300
+Wire Wire Line
+	4950 3050 4950 3300
+Connection ~ 4950 3300
+Wire Wire Line
+	5950 3150 4950 3150
+Connection ~ 4950 3150
+Wire Wire Line
+	5450 2750 5950 2750
+Wire Wire Line
+	5850 2750 5850 3600
+Wire Wire Line
+	5050 2750 4900 2750
+Wire Wire Line
+	4900 2750 4900 2400
+Wire Wire Line
+	4900 2400 4950 2400
+Wire Wire Line
+	4950 2350 4950 2450
+Connection ~ 4950 2400
+Wire Wire Line
+	4450 2050 3900 2050
+Wire Wire Line
+	3900 2050 3900 3600
+Wire Wire Line
+	3800 2650 3900 2650
+Connection ~ 3900 2650
+Connection ~ 5850 2750
+Wire Wire Line
+	4850 2050 5000 2050
+Wire Wire Line
+	5000 2050 5000 1650
+Wire Wire Line
+	5000 1650 4950 1650
+Wire Wire Line
+	4950 1550 4950 1750
+Wire Wire Line
+	4900 1550 4950 1550
+Connection ~ 4950 1650
+$Comp
+L SKY130mode scmode1
+U 1 1 684AFD6B
+P 7350 2150
+F 0 "scmode1" H 7350 2300 98  0000 C CNB
+F 1 "SKY130mode" H 7350 2050 118 0000 C CNB
+F 2 "" H 7350 2300 60  0001 C CNN
+F 3 "" H 7350 2300 60  0001 C CNN
+	1    7350 2150
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_2.cir b/library/SubcircuitLibrary/SN74HC259/NAND_2.cir
new file mode 100644
index 000000000..1fa1e05e8
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_2.cir
@@ -0,0 +1,16 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_2/NAND_2.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 14 09:19:59 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__pfet_01v8		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC1-Pad3_ Net-_SC3-Pad2_ Net-_SC4-Pad3_ Net-_SC4-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC4-Pad3_ Net-_SC2-Pad3_ Net-_SC1-Pad1_ Net-_SC3-Pad2_ PORT		
+scmode1  SKY130mode		
+SC3  Net-_SC1-Pad1_ Net-_SC3-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__pfet_01v8		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_2.cir.out b/library/SubcircuitLibrary/SN74HC259/NAND_2.cir.out
new file mode 100644
index 000000000..079b2d2c2
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_2.cir.out
@@ -0,0 +1,19 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_2/nand_2.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad3_ net-_sc3-pad2_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc4-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ net-_sc3-pad2_ port
+* s c m o d e
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_2.pro b/library/SubcircuitLibrary/SN74HC259/NAND_2.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_2.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_2.sch b/library/SubcircuitLibrary/SN74HC259/NAND_2.sch
new file mode 100644
index 000000000..ebef1d4c6
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_2.sch
@@ -0,0 +1,222 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:NAND_2-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 684AF0E9
+P 4200 2050
+F 0 "SC2" H 4250 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4500 2137 50  0000 R CNN
+F 2 "" H 4200 550 50  0001 C CNN
+F 3 "" H 4200 2050 50  0001 C CNN
+	1    4200 2050
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF1CF
+P 4450 2850
+F 0 "SC1" H 4500 3150 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4750 2937 50  0000 R CNN
+F 2 "" H 4450 1350 50  0001 C CNN
+F 3 "" H 4450 2850 50  0001 C CNN
+	1    4450 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC4
+U 1 1 684AF20C
+P 4850 3550
+F 0 "SC4" H 4900 3850 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5150 3637 50  0000 R CNN
+F 2 "" H 4850 2050 50  0001 C CNN
+F 3 "" H 4850 3550 50  0001 C CNN
+	1    4850 3550
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF271
+P 4350 1550
+F 0 "U1" H 4400 1650 30  0000 C CNN
+F 1 "PORT" H 4350 1550 30  0000 C CNN
+F 2 "" H 4350 1550 60  0000 C CNN
+F 3 "" H 4350 1550 60  0000 C CNN
+	3    4350 1550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF336
+P 3550 2650
+F 0 "U1" H 3600 2750 30  0000 C CNN
+F 1 "PORT" H 3550 2650 30  0000 C CNN
+F 2 "" H 3550 2650 60  0000 C CNN
+F 3 "" H 3550 2650 60  0000 C CNN
+	1    3550 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AF413
+P 5750 2450
+F 0 "U1" H 5800 2550 30  0000 C CNN
+F 1 "PORT" H 5750 2450 30  0000 C CNN
+F 2 "" H 5750 2450 60  0000 C CNN
+F 3 "" H 5750 2450 60  0000 C CNN
+	4    5750 2450
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF82C
+P 5750 3300
+F 0 "U1" H 5800 3400 30  0000 C CNN
+F 1 "PORT" H 5750 3300 30  0000 C CNN
+F 2 "" H 5750 3300 60  0000 C CNN
+F 3 "" H 5750 3300 60  0000 C CNN
+	5    5750 3300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF895
+P 4400 4000
+F 0 "U1" H 4450 4100 30  0000 C CNN
+F 1 "PORT" H 4400 4000 30  0000 C CNN
+F 2 "" H 4400 4000 60  0000 C CNN
+F 3 "" H 4400 4000 60  0000 C CNN
+	2    4400 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684AFD6B
+P 7350 2150
+F 0 "scmode1" H 7350 2300 98  0000 C CNB
+F 1 "SKY130mode" H 7350 2050 118 0000 C CNB
+F 2 "" H 7350 2300 60  0001 C CNN
+F 3 "" H 7350 2300 60  0001 C CNN
+	1    7350 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684CF41D
+P 5000 2050
+F 0 "SC3" H 5050 2350 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5300 2137 50  0000 R CNN
+F 2 "" H 5000 550 50  0001 C CNN
+F 3 "" H 5000 2050 50  0001 C CNN
+	1    5000 2050
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	4400 1750 4800 1750
+Wire Wire Line
+	4600 1550 4600 1750
+Connection ~ 4600 1750
+Wire Wire Line
+	4300 2050 4450 2050
+Wire Wire Line
+	4450 2050 4450 1750
+Connection ~ 4450 1750
+Wire Wire Line
+	4900 2050 4750 2050
+Wire Wire Line
+	4750 2050 4750 1750
+Connection ~ 4750 1750
+Wire Wire Line
+	4400 2350 4800 2350
+Wire Wire Line
+	4650 2550 4650 2350
+Connection ~ 4650 2350
+Wire Wire Line
+	5500 2450 4650 2450
+Connection ~ 4650 2450
+Wire Wire Line
+	3900 2050 3900 2850
+Wire Wire Line
+	3900 2850 4150 2850
+Wire Wire Line
+	3800 2650 3900 2650
+Connection ~ 3900 2650
+Wire Wire Line
+	5300 2050 5300 3550
+Wire Wire Line
+	5300 3550 5150 3550
+Wire Wire Line
+	5500 3300 5300 3300
+Connection ~ 5300 3300
+Wire Wire Line
+	4550 2850 4700 2850
+Wire Wire Line
+	4700 2850 4700 3200
+Wire Wire Line
+	4700 3200 4650 3200
+Wire Wire Line
+	4650 3150 4650 3250
+Connection ~ 4650 3200
+Wire Wire Line
+	4650 3850 4650 4000
+Wire Wire Line
+	4750 3550 4600 3550
+Wire Wire Line
+	4600 3550 4600 3900
+Wire Wire Line
+	4600 3900 4650 3900
+Connection ~ 4650 3900
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_2.sub b/library/SubcircuitLibrary/SN74HC259/NAND_2.sub
new file mode 100644
index 000000000..47d0bd150
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_2.sub
@@ -0,0 +1,13 @@
+* Subcircuit NAND_2
+.subckt NAND_2 net-_sc1-pad2_ net-_sc4-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ net-_sc3-pad2_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_2/nand_2.cir
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc1-pad3_ net-_sc3-pad2_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+xsc3 net-_sc1-pad1_ net-_sc3-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+* Control Statements
+
+.ends NAND_2
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_2_Previous_Values.xml b/library/SubcircuitLibrary/SN74HC259/NAND_2_Previous_Values.xml
new file mode 100644
index 000000000..066d43a60
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_2_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc2><field>w=3 l=0.15</field></sc2><sc1><field>w=1 l=0.15</field></sc1><sc4><field>w=1 l=0.15</field></sc4><sc3><field>w=3 l=0.15</field></sc3></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_3-cache.lib b/library/SubcircuitLibrary/SN74HC259/NAND_3-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_3-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_3.bak b/library/SubcircuitLibrary/SN74HC259/NAND_3.bak
new file mode 100644
index 000000000..d9890c5d1
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_3.bak
@@ -0,0 +1,287 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684AF360
+P 5550 2300
+F 0 "SC3" H 5600 2600 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5850 2387 50  0000 R CNN
+F 2 "" H 5550 800 50  0001 C CNN
+F 3 "" H 5550 2300 50  0001 C CNN
+	1    5550 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 684AF39D
+P 5550 3100
+F 0 "SC4" H 5600 3400 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5850 3187 50  0000 R CNN
+F 2 "" H 5550 1600 50  0001 C CNN
+F 3 "" H 5550 3100 50  0001 C CNN
+	1    5550 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC5
+U 1 1 684AF420
+P 5950 3800
+F 0 "SC5" H 6000 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6250 3887 50  0000 R CNN
+F 2 "" H 5950 2300 50  0001 C CNN
+F 3 "" H 5950 3800 50  0001 C CNN
+	1    5950 3800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF50C
+P 4450 4700
+F 0 "SC1" H 4500 5000 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4750 4787 50  0000 R CNN
+F 2 "" H 4450 3200 50  0001 C CNN
+F 3 "" H 4450 4700 50  0001 C CNN
+	1    4450 4700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684AF577
+P 5500 4700
+F 0 "SC2" H 5550 5000 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5800 4787 50  0000 R CNN
+F 2 "" H 5500 3200 50  0001 C CNN
+F 3 "" H 5500 4700 50  0001 C CNN
+	1    5500 4700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC6
+U 1 1 684AF5EC
+P 6450 4700
+F 0 "SC6" H 6500 5000 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6750 4787 50  0000 R CNN
+F 2 "" H 6450 3200 50  0001 C CNN
+F 3 "" H 6450 4700 50  0001 C CNN
+	1    6450 4700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF63F
+P 3700 4000
+F 0 "U1" H 3750 4100 30  0000 C CNN
+F 1 "PORT" H 3700 4000 30  0000 C CNN
+F 2 "" H 3700 4000 60  0000 C CNN
+F 3 "" H 3700 4000 60  0000 C CNN
+	1    3700 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF6CC
+P 4850 3850
+F 0 "U1" H 4900 3950 30  0000 C CNN
+F 1 "PORT" H 4850 3850 30  0000 C CNN
+F 2 "" H 4850 3850 60  0000 C CNN
+F 3 "" H 4850 3850 60  0000 C CNN
+	2    4850 3850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF829
+P 7050 3800
+F 0 "U1" H 7100 3900 30  0000 C CNN
+F 1 "PORT" H 7050 3800 30  0000 C CNN
+F 2 "" H 7050 3800 60  0000 C CNN
+F 3 "" H 7050 3800 60  0000 C CNN
+	5    7050 3800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 684AF94D
+P 7150 4200
+F 0 "U1" H 7200 4300 30  0000 C CNN
+F 1 "PORT" H 7150 4200 30  0000 C CNN
+F 2 "" H 7150 4200 60  0000 C CNN
+F 3 "" H 7150 4200 60  0000 C CNN
+	6    7150 4200
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF9FE
+P 5100 5200
+F 0 "U1" H 5150 5300 30  0000 C CNN
+F 1 "PORT" H 5100 5200 30  0000 C CNN
+F 2 "" H 5100 5200 60  0000 C CNN
+F 3 "" H 5100 5200 60  0000 C CNN
+	3    5100 5200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AFAE6
+P 5500 1750
+F 0 "U1" H 5550 1850 30  0000 C CNN
+F 1 "PORT" H 5500 1750 30  0000 C CNN
+F 2 "" H 5500 1750 60  0000 C CNN
+F 3 "" H 5500 1750 60  0000 C CNN
+	4    5500 1750
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5650 2300 5800 2300
+Wire Wire Line
+	5800 2300 5800 1950
+Wire Wire Line
+	5800 1950 5750 1950
+Wire Wire Line
+	5750 1750 5750 2000
+Connection ~ 5750 1950
+Wire Wire Line
+	5750 2600 5750 2800
+Wire Wire Line
+	5650 3100 5800 3100
+Wire Wire Line
+	5800 3100 5800 2750
+Wire Wire Line
+	5800 2750 5750 2750
+Connection ~ 5750 2750
+Wire Wire Line
+	5750 3500 5750 3400
+Wire Wire Line
+	5850 3800 5700 3800
+Wire Wire Line
+	5700 3800 5700 3450
+Wire Wire Line
+	5700 3450 5750 3450
+Connection ~ 5750 3450
+Wire Wire Line
+	4650 4400 4650 4300
+Wire Wire Line
+	4650 4300 6250 4300
+Wire Wire Line
+	6250 4300 6250 4400
+Wire Wire Line
+	5700 4400 5700 4300
+Connection ~ 5700 4300
+Wire Wire Line
+	5750 4100 5750 4300
+Connection ~ 5750 4300
+Wire Wire Line
+	4650 5000 4650 5050
+Wire Wire Line
+	4650 5050 6250 5050
+Wire Wire Line
+	6250 5050 6250 5000
+Wire Wire Line
+	5700 5000 5700 5050
+Connection ~ 5700 5050
+Wire Wire Line
+	5350 5200 5350 5050
+Connection ~ 5350 5050
+Wire Wire Line
+	4550 4700 4700 4700
+Wire Wire Line
+	4700 4700 4700 5050
+Connection ~ 4700 5050
+Wire Wire Line
+	5600 4700 5750 4700
+Wire Wire Line
+	5750 4700 5750 5050
+Connection ~ 5750 5050
+Wire Wire Line
+	6350 4700 6200 4700
+Wire Wire Line
+	6200 4700 6200 5050
+Connection ~ 6200 5050
+Wire Wire Line
+	4150 2300 4150 4700
+Wire Wire Line
+	3950 4000 4150 4000
+Connection ~ 4150 4000
+Wire Wire Line
+	5250 2300 4150 2300
+Wire Wire Line
+	5250 3100 5200 3100
+Wire Wire Line
+	5200 3100 5200 4700
+Wire Wire Line
+	6250 3800 6800 3800
+Wire Wire Line
+	6750 3800 6750 4700
+Connection ~ 6750 3800
+Wire Wire Line
+	5100 3850 5200 3850
+Connection ~ 5200 3850
+Wire Wire Line
+	6900 4200 5750 4200
+Connection ~ 5750 4200
+$Comp
+L SKY130mode scmode1
+U 1 1 684B00C1
+P 8250 2900
+F 0 "scmode1" H 8250 3050 98  0000 C CNB
+F 1 "SKY130mode" H 8250 2800 118 0000 C CNB
+F 2 "" H 8250 3050 60  0001 C CNN
+F 3 "" H 8250 3050 60  0001 C CNN
+	1    8250 2900
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_3.cir b/library/SubcircuitLibrary/SN74HC259/NAND_3.cir
new file mode 100644
index 000000000..e4f46e26d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_3.cir
@@ -0,0 +1,18 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/NAND_3/NAND_3.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 14 09:30:02 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC3  Net-_SC2-Pad1_ Net-_SC2-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__pfet_01v8		
+SC4  Net-_SC2-Pad1_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__pfet_01v8		
+SC5  Net-_SC2-Pad1_ Net-_SC5-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__pfet_01v8		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC6  Net-_SC1-Pad3_ Net-_SC5-Pad2_ Net-_SC6-Pad3_ Net-_SC6-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC2-Pad2_ Net-_SC1-Pad2_ Net-_SC6-Pad3_ Net-_SC3-Pad3_ Net-_SC2-Pad1_ Net-_SC5-Pad2_ PORT		
+scmode1  SKY130mode		
+SC2  Net-_SC2-Pad1_ Net-_SC2-Pad2_ Net-_SC1-Pad1_ Net-_SC1-Pad1_ sky130_fd_pr__nfet_01v8		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_3.cir.out b/library/SubcircuitLibrary/SN74HC259/NAND_3.cir.out
new file mode 100644
index 000000000..b08a2163a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_3.cir.out
@@ -0,0 +1,21 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_3/nand_3.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc3 net-_sc2-pad1_ net-_sc2-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc4 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc2-pad1_ net-_sc5-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc6 net-_sc1-pad3_ net-_sc5-pad2_ net-_sc6-pad3_ net-_sc6-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc2-pad2_ net-_sc1-pad2_ net-_sc6-pad3_ net-_sc3-pad3_ net-_sc2-pad1_ net-_sc5-pad2_ port
+* s c m o d e
+xsc2 net-_sc2-pad1_ net-_sc2-pad2_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_3.pro b/library/SubcircuitLibrary/SN74HC259/NAND_3.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_3.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_3.sch b/library/SubcircuitLibrary/SN74HC259/NAND_3.sch
new file mode 100644
index 000000000..eb96f8eac
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_3.sch
@@ -0,0 +1,289 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:NAND_3-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC3
+U 1 1 684AF360
+P 4200 2350
+F 0 "SC3" H 4250 2650 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4500 2437 50  0000 R CNN
+F 2 "" H 4200 850 50  0001 C CNN
+F 3 "" H 4200 2350 50  0001 C CNN
+	1    4200 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 684AF39D
+P 5250 2350
+F 0 "SC4" H 5300 2650 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5550 2437 50  0000 R CNN
+F 2 "" H 5250 850 50  0001 C CNN
+F 3 "" H 5250 2350 50  0001 C CNN
+	1    5250 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC5
+U 1 1 684AF420
+P 6100 2350
+F 0 "SC5" H 6150 2650 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6400 2437 50  0000 R CNN
+F 2 "" H 6100 850 50  0001 C CNN
+F 3 "" H 6100 2350 50  0001 C CNN
+	1    6100 2350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 684AF50C
+P 5250 4000
+F 0 "SC1" H 5300 4300 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5550 4087 50  0000 R CNN
+F 2 "" H 5250 2500 50  0001 C CNN
+F 3 "" H 5250 4000 50  0001 C CNN
+	1    5250 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC6
+U 1 1 684AF5EC
+P 5650 4700
+F 0 "SC6" H 5700 5000 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5950 4787 50  0000 R CNN
+F 2 "" H 5650 3200 50  0001 C CNN
+F 3 "" H 5650 4700 50  0001 C CNN
+	1    5650 4700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684AF63F
+P 3450 2350
+F 0 "U1" H 3500 2450 30  0000 C CNN
+F 1 "PORT" H 3450 2350 30  0000 C CNN
+F 2 "" H 3450 2350 60  0000 C CNN
+F 3 "" H 3450 2350 60  0000 C CNN
+	1    3450 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684AF6CC
+P 4500 4000
+F 0 "U1" H 4550 4100 30  0000 C CNN
+F 1 "PORT" H 4500 4000 30  0000 C CNN
+F 2 "" H 4500 4000 60  0000 C CNN
+F 3 "" H 4500 4000 60  0000 C CNN
+	2    4500 4000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684AF829
+P 6300 2800
+F 0 "U1" H 6350 2900 30  0000 C CNN
+F 1 "PORT" H 6300 2800 30  0000 C CNN
+F 2 "" H 6300 2800 60  0000 C CNN
+F 3 "" H 6300 2800 60  0000 C CNN
+	5    6300 2800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 684AF94D
+P 6850 2350
+F 0 "U1" H 6900 2450 30  0000 C CNN
+F 1 "PORT" H 6850 2350 30  0000 C CNN
+F 2 "" H 6850 2350 60  0000 C CNN
+F 3 "" H 6850 2350 60  0000 C CNN
+	6    6850 2350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684AF9FE
+P 5100 5200
+F 0 "U1" H 5150 5300 30  0000 C CNN
+F 1 "PORT" H 5100 5200 30  0000 C CNN
+F 2 "" H 5100 5200 60  0000 C CNN
+F 3 "" H 5100 5200 60  0000 C CNN
+	3    5100 5200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684AFAE6
+P 5500 1750
+F 0 "U1" H 5550 1850 30  0000 C CNN
+F 1 "PORT" H 5500 1750 30  0000 C CNN
+F 2 "" H 5500 1750 60  0000 C CNN
+F 3 "" H 5500 1750 60  0000 C CNN
+	4    5500 1750
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684B00C1
+P 8250 2900
+F 0 "scmode1" H 8250 3050 98  0000 C CNB
+F 1 "SKY130mode" H 8250 2800 118 0000 C CNB
+F 2 "" H 8250 3050 60  0001 C CNN
+F 3 "" H 8250 3050 60  0001 C CNN
+	1    8250 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684AF577
+P 5250 3250
+F 0 "SC2" H 5300 3550 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5550 3337 50  0000 R CNN
+F 2 "" H 5250 1750 50  0001 C CNN
+F 3 "" H 5250 3250 50  0001 C CNN
+	1    5250 3250
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4400 2050 4400 2000
+Wire Wire Line
+	4400 2000 5900 2000
+Wire Wire Line
+	5900 2000 5900 2050
+Wire Wire Line
+	5450 2050 5450 2000
+Connection ~ 5450 2000
+Wire Wire Line
+	5750 1750 5750 2000
+Connection ~ 5750 2000
+Wire Wire Line
+	4300 2350 4450 2350
+Wire Wire Line
+	4450 2350 4450 2000
+Connection ~ 4450 2000
+Wire Wire Line
+	5350 2350 5500 2350
+Wire Wire Line
+	5500 2350 5500 2000
+Connection ~ 5500 2000
+Wire Wire Line
+	6000 2350 5850 2350
+Wire Wire Line
+	5850 2350 5850 2000
+Connection ~ 5850 2000
+Wire Wire Line
+	4400 2650 4400 2700
+Wire Wire Line
+	4400 2700 5900 2700
+Wire Wire Line
+	5900 2700 5900 2650
+Wire Wire Line
+	5450 2650 5450 2950
+Connection ~ 5450 2700
+Wire Wire Line
+	6050 2800 5450 2800
+Connection ~ 5450 2800
+Wire Wire Line
+	3700 2350 3900 2350
+Wire Wire Line
+	3850 2350 3850 3250
+Wire Wire Line
+	3850 3250 4950 3250
+Wire Wire Line
+	4950 2350 4800 2350
+Wire Wire Line
+	4800 2350 4800 4000
+Wire Wire Line
+	4750 4000 4950 4000
+Wire Wire Line
+	5350 3250 5500 3250
+Wire Wire Line
+	5500 3250 5500 3600
+Wire Wire Line
+	5500 3600 5450 3600
+Wire Wire Line
+	5450 3550 5450 3700
+Connection ~ 5450 3600
+Wire Wire Line
+	6400 2350 6600 2350
+Wire Wire Line
+	6450 2350 6450 4700
+Wire Wire Line
+	6450 4700 5950 4700
+Connection ~ 6450 2350
+Wire Wire Line
+	5350 4000 5500 4000
+Wire Wire Line
+	5500 4000 5500 4350
+Wire Wire Line
+	5500 4350 5450 4350
+Wire Wire Line
+	5450 4300 5450 4400
+Connection ~ 5450 4350
+Connection ~ 4800 4000
+Wire Wire Line
+	5450 5000 5450 5200
+Wire Wire Line
+	5450 5200 5350 5200
+Wire Wire Line
+	5550 4700 5400 4700
+Wire Wire Line
+	5400 4700 5400 5050
+Wire Wire Line
+	5400 5050 5450 5050
+Connection ~ 5450 5050
+Connection ~ 3850 2350
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_3.sub b/library/SubcircuitLibrary/SN74HC259/NAND_3.sub
new file mode 100644
index 000000000..3b4f4b3ff
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_3.sub
@@ -0,0 +1,15 @@
+* Subcircuit NAND_3
+.subckt NAND_3 net-_sc2-pad2_ net-_sc1-pad2_ net-_sc6-pad3_ net-_sc3-pad3_ net-_sc2-pad1_ net-_sc5-pad2_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/nand_3/nand_3.cir
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc3 net-_sc2-pad1_ net-_sc2-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc4 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc2-pad1_ net-_sc5-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc6 net-_sc1-pad3_ net-_sc5-pad2_ net-_sc6-pad3_ net-_sc6-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+xsc2 net-_sc2-pad1_ net-_sc2-pad2_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* Control Statements
+
+.ends NAND_3
diff --git a/library/SubcircuitLibrary/SN74HC259/NAND_3_Previous_Values.xml b/library/SubcircuitLibrary/SN74HC259/NAND_3_Previous_Values.xml
new file mode 100644
index 000000000..c0934485a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/NAND_3_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc3><field>w=3 l=0.15</field></sc3><sc4><field>w=3 l=0.15</field></sc4><sc5><field>w=3 l=0.15</field></sc5><sc1><field>w=1 l=0.15</field></sc1><sc6><field>w=1 l=0.15</field></sc6><sc2><field>w=1 l=0.15</field></sc2></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74HC259/SN74HC259-cache.lib b/library/SubcircuitLibrary/SN74HC259/SN74HC259-cache.lib
new file mode 100644
index 000000000..aeffc2259
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/SN74HC259-cache.lib
@@ -0,0 +1,126 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" 100 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 550 0 50 0 1 0 N
+P 2 0 1 0 -450 250 500 0 N
+P 3 0 1 0 -450 250 -450 -250 500 0 N
+X IN 1 -650 0 200 R 50 50 1 1 I
+X VDD 2 -650 150 200 R 50 50 1 1 I
+X GND 3 -650 -150 200 R 50 50 1 1 I
+X OUT 4 800 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Decoder_38_Address_Latch_storage
+#
+DEF Decoder_38_Address_Latch_storage X 0 40 Y Y 1 F N
+F0 "X" 0 -150 60 H V C CNN
+F1 "Decoder_38_Address_Latch_storage" 100 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -900 1150 900 -1250 0 1 0 N
+X Q1 1 1100 1000 200 L 50 50 1 1 O
+X Q3 2 1100 500 200 L 50 50 1 1 O
+X Q2 3 1100 750 200 L 50 50 1 1 O
+X Q4 4 1100 250 200 L 50 50 1 1 O
+X VDD 5 -1100 1000 200 R 50 50 1 1 I
+X GND 6 -1150 -1000 200 R 50 50 1 1 I
+X Q5 7 1100 -200 200 L 50 50 1 1 O
+X Q6 8 1100 -400 200 L 50 50 1 1 O
+X Q7 9 1100 -650 200 L 50 50 1 1 O
+X Q8 10 1100 -950 200 L 50 50 1 1 O
+X RE 11 -1100 -450 200 R 50 50 1 1 I
+X D 12 -1100 -650 200 R 50 50 1 1 I
+X S0_BAR 13 -1100 850 200 R 50 50 1 1 I
+X S1_BAR 14 -1100 700 200 R 50 50 1 1 I
+X S2_BAR 15 -1100 550 200 R 50 50 1 1 I
+X G_BAR 16 -1150 -250 200 R 50 50 1 1 I
+X S0 17 -1100 350 200 R 50 50 1 1 I
+X S1 18 -1100 200 200 R 50 50 1 1 I
+X S2 19 -1100 50 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# Schmitt_Trigger
+#
+DEF Schmitt_Trigger X 0 40 Y Y 1 F N
+F0 "X" -400 0 60 H V C CNN
+F1 "Schmitt_Trigger" 50 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+P 2 0 1 0 -650 -150 -700 -150 N
+P 2 0 1 0 -550 150 -450 150 N
+P 2 0 1 0 -450 150 -400 150 N
+P 3 0 1 0 -550 150 -600 -150 -650 -150 N
+P 3 0 1 0 -500 150 -550 -150 -600 -150 N
+P 4 0 1 0 -800 350 900 0 -800 -350 -800 350 N
+X In 1 -1000 0 200 R 50 50 1 1 I
+X Vdd 2 -300 450 200 D 50 50 1 1 I
+X Gnd 3 -300 -450 200 U 50 50 1 1 I
+X Out 4 1100 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74HC259/SN74HC259.bak b/library/SubcircuitLibrary/SN74HC259/SN74HC259.bak
new file mode 100644
index 000000000..ea9ed7bf8
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/SN74HC259.bak
@@ -0,0 +1,531 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SN74HC259-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L CMOS_INVTR X6
+U 1 1 684B99C4
+P 5350 1700
+F 0 "X6" H 5350 1700 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5450 1450 60  0000 C CNN
+F 2 "" H 5350 1700 60  0001 C CNN
+F 3 "" H 5350 1700 60  0001 C CNN
+	1    5350 1700
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X7
+U 1 1 684B9A21
+P 5350 2400
+F 0 "X7" H 5350 2400 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5450 2150 60  0000 C CNN
+F 2 "" H 5350 2400 60  0001 C CNN
+F 3 "" H 5350 2400 60  0001 C CNN
+	1    5350 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X8
+U 1 1 684B9A8E
+P 5350 3250
+F 0 "X8" H 5350 3250 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5450 3000 60  0000 C CNN
+F 2 "" H 5350 3250 60  0001 C CNN
+F 3 "" H 5350 3250 60  0001 C CNN
+	1    5350 3250
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X9
+U 1 1 684B9B4B
+P 5350 4100
+F 0 "X9" H 5350 4100 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5450 3850 60  0000 C CNN
+F 2 "" H 5350 4100 60  0001 C CNN
+F 3 "" H 5350 4100 60  0001 C CNN
+	1    5350 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X10
+U 1 1 684B9D35
+P 5350 4850
+F 0 "X10" H 5350 4850 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5450 4600 60  0000 C CNN
+F 2 "" H 5350 4850 60  0001 C CNN
+F 3 "" H 5350 4850 60  0001 C CNN
+	1    5350 4850
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6150 1700 7750 1700
+Wire Wire Line
+	7750 1700 7750 1750
+Wire Wire Line
+	6150 2400 6150 1900
+Wire Wire Line
+	6150 1900 7750 1900
+Wire Wire Line
+	6150 3250 6350 3250
+Wire Wire Line
+	6350 3250 6350 2050
+Wire Wire Line
+	6350 2050 7750 2050
+Wire Wire Line
+	4000 1700 4700 1700
+Wire Wire Line
+	4350 1700 4350 2100
+Wire Wire Line
+	4350 2100 7750 2100
+Wire Wire Line
+	7750 2100 7750 2250
+Connection ~ 4350 1700
+Wire Wire Line
+	7750 2400 6400 2400
+Wire Wire Line
+	6400 2400 6400 2700
+Wire Wire Line
+	6400 2700 4000 2700
+Wire Wire Line
+	4700 2400 4350 2400
+Wire Wire Line
+	4350 2400 4350 2700
+Connection ~ 4350 2700
+Wire Wire Line
+	7750 2550 6450 2550
+Wire Wire Line
+	6450 2550 6450 2950
+Wire Wire Line
+	6450 2950 4000 2950
+Wire Wire Line
+	4700 3250 4350 3250
+Wire Wire Line
+	4350 3250 4350 2950
+Connection ~ 4350 2950
+Wire Wire Line
+	6150 4100 6750 4100
+Wire Wire Line
+	6750 4100 6750 2850
+Wire Wire Line
+	6750 2850 7700 2850
+Wire Wire Line
+	6150 4850 6900 4850
+Wire Wire Line
+	6900 4850 6900 3050
+Wire Wire Line
+	6900 3050 7750 3050
+Wire Wire Line
+	4700 1850 4550 1850
+Wire Wire Line
+	4550 1850 4550 5450
+Wire Wire Line
+	4550 5000 4700 5000
+Wire Wire Line
+	4700 1550 4450 1550
+Wire Wire Line
+	4450 1250 4450 4700
+Wire Wire Line
+	4450 4700 4700 4700
+Wire Wire Line
+	3950 4100 4700 4100
+Wire Wire Line
+	4700 4850 4050 4850
+Wire Wire Line
+	4700 4250 4550 4250
+Connection ~ 4550 4250
+Wire Wire Line
+	4700 3950 4450 3950
+Connection ~ 4450 3950
+Wire Wire Line
+	4700 3400 4550 3400
+Connection ~ 4550 3400
+Wire Wire Line
+	4700 3100 4450 3100
+Connection ~ 4450 3100
+Wire Wire Line
+	4700 2550 4550 2550
+Connection ~ 4550 2550
+Wire Wire Line
+	2600 2250 4700 2250
+Connection ~ 4450 2250
+Wire Wire Line
+	7700 3600 4550 3600
+Connection ~ 4550 3600
+Wire Wire Line
+	7750 1600 4450 1600
+Connection ~ 4450 1600
+$Comp
+L Schmitt_Trigger X2
+U 1 1 684BA479
+P 2900 1700
+F 0 "X2" H 2500 1700 60  0000 C CNN
+F 1 "Schmitt_Trigger" H 2950 1700 60  0000 C CNN
+F 2 "" H 2900 1700 60  0001 C CNN
+F 3 "" H 2900 1700 60  0001 C CNN
+	1    2900 1700
+	1    0    0    -1  
+$EndComp
+$Comp
+L Schmitt_Trigger X3
+U 1 1 684BA5DA
+P 2900 2700
+F 0 "X3" H 2500 2700 60  0000 C CNN
+F 1 "Schmitt_Trigger" H 2950 2700 60  0000 C CNN
+F 2 "" H 2900 2700 60  0001 C CNN
+F 3 "" H 2900 2700 60  0001 C CNN
+	1    2900 2700
+	1    0    0    -1  
+$EndComp
+$Comp
+L Schmitt_Trigger X4
+U 1 1 684BA619
+P 2900 3750
+F 0 "X4" H 2500 3750 60  0000 C CNN
+F 1 "Schmitt_Trigger" H 2950 3750 60  0000 C CNN
+F 2 "" H 2900 3750 60  0001 C CNN
+F 3 "" H 2900 3750 60  0001 C CNN
+	1    2900 3750
+	1    0    0    -1  
+$EndComp
+$Comp
+L Schmitt_Trigger X1
+U 1 1 684BA672
+P 2850 5000
+F 0 "X1" H 2450 5000 60  0000 C CNN
+F 1 "Schmitt_Trigger" H 2900 5000 60  0000 C CNN
+F 2 "" H 2850 5000 60  0001 C CNN
+F 3 "" H 2850 5000 60  0001 C CNN
+	1    2850 5000
+	1    0    0    -1  
+$EndComp
+$Comp
+L Schmitt_Trigger X5
+U 1 1 684BA77B
+P 2950 6250
+F 0 "X5" H 2550 6250 60  0000 C CNN
+F 1 "Schmitt_Trigger" H 3000 6250 60  0000 C CNN
+F 2 "" H 2950 6250 60  0001 C CNN
+F 3 "" H 2950 6250 60  0001 C CNN
+	1    2950 6250
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4000 2950 4000 3750
+Wire Wire Line
+	3950 5000 3950 4100
+Wire Wire Line
+	4050 4850 4050 6250
+Wire Wire Line
+	2600 1250 4450 1250
+Connection ~ 4450 1550
+Wire Wire Line
+	2600 2150 4550 2150
+Connection ~ 4550 2150
+Wire Wire Line
+	2600 3150 4550 3150
+Connection ~ 4550 3150
+Wire Wire Line
+	2600 3300 4450 3300
+Connection ~ 4450 3300
+Wire Wire Line
+	2600 4200 4550 4200
+Connection ~ 4550 4200
+Wire Wire Line
+	2550 4550 4450 4550
+Connection ~ 4450 4550
+Wire Wire Line
+	4550 5450 2550 5450
+Connection ~ 4550 5000
+Wire Wire Line
+	2650 5800 2650 4550
+Connection ~ 2650 4550
+Wire Wire Line
+	2650 6700 2850 6700
+Wire Wire Line
+	2850 6700 2850 5450
+Connection ~ 2850 5450
+$Comp
+L PORT U1
+U 1 1 684BB024
+P 1400 1700
+F 0 "U1" H 1450 1800 30  0000 C CNN
+F 1 "PORT" H 1400 1700 30  0000 C CNN
+F 2 "" H 1400 1700 60  0000 C CNN
+F 3 "" H 1400 1700 60  0000 C CNN
+	1    1400 1700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684BB087
+P 1400 2700
+F 0 "U1" H 1450 2800 30  0000 C CNN
+F 1 "PORT" H 1400 2700 30  0000 C CNN
+F 2 "" H 1400 2700 60  0000 C CNN
+F 3 "" H 1400 2700 60  0000 C CNN
+	2    1400 2700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684BB103
+P 1400 3750
+F 0 "U1" H 1450 3850 30  0000 C CNN
+F 1 "PORT" H 1400 3750 30  0000 C CNN
+F 2 "" H 1400 3750 60  0000 C CNN
+F 3 "" H 1400 3750 60  0000 C CNN
+	3    1400 3750
+	1    0    0    -1  
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+F 3 "" H 1400 5000 60  0000 C CNN
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+$Comp
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+F 3 "" H 1400 6250 60  0000 C CNN
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+F 3 "" H 7350 1500 60  0000 C CNN
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+F 3 "" H 7350 3250 60  0000 C CNN
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+$Comp
+L PORT U1
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+F 3 "" H 7350 3700 60  0000 C CNN
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+	1    0    0    -1  
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+$Comp
+L PORT U1
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+F 1 "PORT" H 10500 1600 30  0000 C CNN
+F 2 "" H 10500 1600 60  0000 C CNN
+F 3 "" H 10500 1600 60  0000 C CNN
+	9    10500 1600
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+F 1 "PORT" H 10500 1850 30  0000 C CNN
+F 2 "" H 10500 1850 60  0000 C CNN
+F 3 "" H 10500 1850 60  0000 C CNN
+	10   10500 1850
+	-1   0    0    -1  
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+F 1 "PORT" H 10500 2100 30  0000 C CNN
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+F 3 "" H 10500 2100 60  0000 C CNN
+	11   10500 2100
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+F 3 "" H 10500 2350 60  0000 C CNN
+	12   10500 2350
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+$Comp
+L PORT U1
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+F 3 "" H 10500 2800 60  0000 C CNN
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+F 1 "PORT" H 10500 3000 30  0000 C CNN
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+F 3 "" H 10500 3000 60  0000 C CNN
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+F 3 "" H 10500 3250 60  0000 C CNN
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+F 3 "" H 10500 3550 60  0000 C CNN
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+	7600 3700 7600 3600
+Connection ~ 7600 3600
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+Connection ~ 7600 1600
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+Wire Wire Line
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+F 1 "SKY130mode" H 8750 5400 118 0000 C CNB
+F 2 "" H 8750 5650 60  0001 C CNN
+F 3 "" H 8750 5650 60  0001 C CNN
+	1    8750 5500
+	1    0    0    -1  
+$EndComp
+$Comp
+L Decoder_38_Address_Latch_storage X?
+U 1 1 684CFBD4
+P 8850 2600
+F 0 "X?" H 8850 2450 60  0000 C CNN
+F 1 "Decoder_38_Address_Latch_storage" H 8950 2600 60  0000 C CNN
+F 2 "" H 8850 2600 60  0001 C CNN
+F 3 "" H 8850 2600 60  0001 C CNN
+	1    8850 2600
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74HC259/SN74HC259.cir b/library/SubcircuitLibrary/SN74HC259/SN74HC259.cir
new file mode 100644
index 000000000..37dd5be78
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/SN74HC259.cir
@@ -0,0 +1,23 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/SN74HC259/SN74HC259.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jun 14 09:55:16 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X6  Net-_X11-Pad17_ Net-_U1-Pad6_ Net-_U1-Pad8_ Net-_X11-Pad13_ CMOS_INVTR		
+X7  Net-_X11-Pad18_ Net-_U1-Pad6_ Net-_U1-Pad8_ Net-_X11-Pad14_ CMOS_INVTR		
+X8  Net-_X11-Pad19_ Net-_U1-Pad6_ Net-_U1-Pad8_ Net-_X11-Pad15_ CMOS_INVTR		
+X9  Net-_X1-Pad4_ Net-_U1-Pad6_ Net-_U1-Pad8_ Net-_X11-Pad16_ CMOS_INVTR		
+X10  Net-_X10-Pad1_ Net-_U1-Pad6_ Net-_U1-Pad8_ Net-_X10-Pad4_ CMOS_INVTR		
+X2  Net-_U1-Pad1_ Net-_U1-Pad6_ Net-_U1-Pad8_ Net-_X11-Pad17_ Schmitt_Trigger		
+X3  Net-_U1-Pad2_ Net-_U1-Pad6_ Net-_U1-Pad8_ Net-_X11-Pad18_ Schmitt_Trigger		
+X4  Net-_U1-Pad3_ Net-_U1-Pad6_ Net-_U1-Pad8_ Net-_X11-Pad19_ Schmitt_Trigger		
+X1  Net-_U1-Pad4_ Net-_U1-Pad6_ Net-_U1-Pad8_ Net-_X1-Pad4_ Schmitt_Trigger		
+X5  Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad8_ Net-_X10-Pad1_ Schmitt_Trigger		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad9_ Net-_U1-Pad10_ Net-_U1-Pad11_ Net-_U1-Pad12_ Net-_U1-Pad13_ Net-_U1-Pad14_ Net-_U1-Pad15_ Net-_U1-Pad16_ PORT		
+scmode1  SKY130mode		
+X11  Net-_U1-Pad9_ Net-_U1-Pad11_ Net-_U1-Pad10_ Net-_U1-Pad12_ Net-_U1-Pad6_ Net-_U1-Pad8_ Net-_U1-Pad13_ Net-_U1-Pad14_ Net-_U1-Pad15_ Net-_U1-Pad16_ Net-_X10-Pad4_ Net-_U1-Pad7_ Net-_X11-Pad13_ Net-_X11-Pad14_ Net-_X11-Pad15_ Net-_X11-Pad16_ Net-_X11-Pad17_ Net-_X11-Pad18_ Net-_X11-Pad19_ Decoder_38_Address_Latch_storage		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/SN74HC259.cir.out b/library/SubcircuitLibrary/SN74HC259/SN74HC259.cir.out
new file mode 100644
index 000000000..15ad3bb0a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/SN74HC259.cir.out
@@ -0,0 +1,29 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/sn74hc259/sn74hc259.cir
+
+.include CMOS_INVTR.sub
+.include Schmitt_Trigger.sub
+.include Decoder_38_Address_Latch_storage.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x6 net-_x11-pad17_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad13_ CMOS_INVTR
+x7 net-_x11-pad18_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad14_ CMOS_INVTR
+x8 net-_x11-pad19_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad15_ CMOS_INVTR
+x9 net-_x1-pad4_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad16_ CMOS_INVTR
+x10 net-_x10-pad1_ net-_u1-pad6_ net-_u1-pad8_ net-_x10-pad4_ CMOS_INVTR
+x2 net-_u1-pad1_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad17_ Schmitt_Trigger
+x3 net-_u1-pad2_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad18_ Schmitt_Trigger
+x4 net-_u1-pad3_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad19_ Schmitt_Trigger
+x1 net-_u1-pad4_ net-_u1-pad6_ net-_u1-pad8_ net-_x1-pad4_ Schmitt_Trigger
+x5 net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad8_ net-_x10-pad1_ Schmitt_Trigger
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ port
+* s c m o d e
+x11 net-_u1-pad9_ net-_u1-pad11_ net-_u1-pad10_ net-_u1-pad12_ net-_u1-pad6_ net-_u1-pad8_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ net-_x10-pad4_ net-_u1-pad7_ net-_x11-pad13_ net-_x11-pad14_ net-_x11-pad15_ net-_x11-pad16_ net-_x11-pad17_ net-_x11-pad18_ net-_x11-pad19_ Decoder_38_Address_Latch_storage
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/SN74HC259.pro b/library/SubcircuitLibrary/SN74HC259/SN74HC259.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/SN74HC259.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74HC259/SN74HC259.sch b/library/SubcircuitLibrary/SN74HC259/SN74HC259.sch
new file mode 100644
index 000000000..f4dbfed48
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/SN74HC259.sch
@@ -0,0 +1,531 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SN74HC259-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L CMOS_INVTR X6
+U 1 1 684B99C4
+P 5350 1700
+F 0 "X6" H 5350 1700 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5450 1450 60  0000 C CNN
+F 2 "" H 5350 1700 60  0001 C CNN
+F 3 "" H 5350 1700 60  0001 C CNN
+	1    5350 1700
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X7
+U 1 1 684B9A21
+P 5350 2400
+F 0 "X7" H 5350 2400 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5450 2150 60  0000 C CNN
+F 2 "" H 5350 2400 60  0001 C CNN
+F 3 "" H 5350 2400 60  0001 C CNN
+	1    5350 2400
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X8
+U 1 1 684B9A8E
+P 5350 3250
+F 0 "X8" H 5350 3250 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5450 3000 60  0000 C CNN
+F 2 "" H 5350 3250 60  0001 C CNN
+F 3 "" H 5350 3250 60  0001 C CNN
+	1    5350 3250
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X9
+U 1 1 684B9B4B
+P 5350 4100
+F 0 "X9" H 5350 4100 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5450 3850 60  0000 C CNN
+F 2 "" H 5350 4100 60  0001 C CNN
+F 3 "" H 5350 4100 60  0001 C CNN
+	1    5350 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X10
+U 1 1 684B9D35
+P 5350 4850
+F 0 "X10" H 5350 4850 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5450 4600 60  0000 C CNN
+F 2 "" H 5350 4850 60  0001 C CNN
+F 3 "" H 5350 4850 60  0001 C CNN
+	1    5350 4850
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 4350 1700
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 4350 2700
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 4350 2950
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 4550 4250
+Wire Wire Line
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+Connection ~ 4450 3950
+Wire Wire Line
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+Connection ~ 4550 3400
+Wire Wire Line
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+Connection ~ 4450 3100
+Wire Wire Line
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+Connection ~ 4550 2550
+Wire Wire Line
+	2600 2250 4700 2250
+Connection ~ 4450 2250
+Wire Wire Line
+	7700 3600 4550 3600
+Connection ~ 4550 3600
+Wire Wire Line
+	7750 1600 4450 1600
+Connection ~ 4450 1600
+$Comp
+L Schmitt_Trigger X2
+U 1 1 684BA479
+P 2900 1700
+F 0 "X2" H 2500 1700 60  0000 C CNN
+F 1 "Schmitt_Trigger" H 2950 1700 60  0000 C CNN
+F 2 "" H 2900 1700 60  0001 C CNN
+F 3 "" H 2900 1700 60  0001 C CNN
+	1    2900 1700
+	1    0    0    -1  
+$EndComp
+$Comp
+L Schmitt_Trigger X3
+U 1 1 684BA5DA
+P 2900 2700
+F 0 "X3" H 2500 2700 60  0000 C CNN
+F 1 "Schmitt_Trigger" H 2950 2700 60  0000 C CNN
+F 2 "" H 2900 2700 60  0001 C CNN
+F 3 "" H 2900 2700 60  0001 C CNN
+	1    2900 2700
+	1    0    0    -1  
+$EndComp
+$Comp
+L Schmitt_Trigger X4
+U 1 1 684BA619
+P 2900 3750
+F 0 "X4" H 2500 3750 60  0000 C CNN
+F 1 "Schmitt_Trigger" H 2950 3750 60  0000 C CNN
+F 2 "" H 2900 3750 60  0001 C CNN
+F 3 "" H 2900 3750 60  0001 C CNN
+	1    2900 3750
+	1    0    0    -1  
+$EndComp
+$Comp
+L Schmitt_Trigger X1
+U 1 1 684BA672
+P 2850 5000
+F 0 "X1" H 2450 5000 60  0000 C CNN
+F 1 "Schmitt_Trigger" H 2900 5000 60  0000 C CNN
+F 2 "" H 2850 5000 60  0001 C CNN
+F 3 "" H 2850 5000 60  0001 C CNN
+	1    2850 5000
+	1    0    0    -1  
+$EndComp
+$Comp
+L Schmitt_Trigger X5
+U 1 1 684BA77B
+P 2950 6250
+F 0 "X5" H 2550 6250 60  0000 C CNN
+F 1 "Schmitt_Trigger" H 3000 6250 60  0000 C CNN
+F 2 "" H 2950 6250 60  0001 C CNN
+F 3 "" H 2950 6250 60  0001 C CNN
+	1    2950 6250
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4000 2950 4000 3750
+Wire Wire Line
+	3950 5000 3950 4100
+Wire Wire Line
+	4050 4850 4050 6250
+Wire Wire Line
+	2600 1250 4450 1250
+Connection ~ 4450 1550
+Wire Wire Line
+	2600 2150 4550 2150
+Connection ~ 4550 2150
+Wire Wire Line
+	2600 3150 4550 3150
+Connection ~ 4550 3150
+Wire Wire Line
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+Connection ~ 4450 3300
+Wire Wire Line
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+Connection ~ 4550 4200
+Wire Wire Line
+	2550 4550 4450 4550
+Connection ~ 4450 4550
+Wire Wire Line
+	4550 5450 2550 5450
+Connection ~ 4550 5000
+Wire Wire Line
+	2650 5800 2650 4550
+Connection ~ 2650 4550
+Wire Wire Line
+	2650 6700 2850 6700
+Wire Wire Line
+	2850 6700 2850 5450
+Connection ~ 2850 5450
+$Comp
+L PORT U1
+U 1 1 684BB024
+P 1400 1700
+F 0 "U1" H 1450 1800 30  0000 C CNN
+F 1 "PORT" H 1400 1700 30  0000 C CNN
+F 2 "" H 1400 1700 60  0000 C CNN
+F 3 "" H 1400 1700 60  0000 C CNN
+	1    1400 1700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684BB087
+P 1400 2700
+F 0 "U1" H 1450 2800 30  0000 C CNN
+F 1 "PORT" H 1400 2700 30  0000 C CNN
+F 2 "" H 1400 2700 60  0000 C CNN
+F 3 "" H 1400 2700 60  0000 C CNN
+	2    1400 2700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684BB103
+P 1400 3750
+F 0 "U1" H 1450 3850 30  0000 C CNN
+F 1 "PORT" H 1400 3750 30  0000 C CNN
+F 2 "" H 1400 3750 60  0000 C CNN
+F 3 "" H 1400 3750 60  0000 C CNN
+	3    1400 3750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684BB194
+P 1400 5000
+F 0 "U1" H 1450 5100 30  0000 C CNN
+F 1 "PORT" H 1400 5000 30  0000 C CNN
+F 2 "" H 1400 5000 60  0000 C CNN
+F 3 "" H 1400 5000 60  0000 C CNN
+	4    1400 5000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 684BB25E
+P 1400 6250
+F 0 "U1" H 1450 6350 30  0000 C CNN
+F 1 "PORT" H 1400 6250 30  0000 C CNN
+F 2 "" H 1400 6250 60  0000 C CNN
+F 3 "" H 1400 6250 60  0000 C CNN
+	5    1400 6250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 684BB3D1
+P 7350 1500
+F 0 "U1" H 7400 1600 30  0000 C CNN
+F 1 "PORT" H 7350 1500 30  0000 C CNN
+F 2 "" H 7350 1500 60  0000 C CNN
+F 3 "" H 7350 1500 60  0000 C CNN
+	6    7350 1500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 684BB471
+P 7350 3250
+F 0 "U1" H 7400 3350 30  0000 C CNN
+F 1 "PORT" H 7350 3250 30  0000 C CNN
+F 2 "" H 7350 3250 60  0000 C CNN
+F 3 "" H 7350 3250 60  0000 C CNN
+	7    7350 3250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 8 1 684BB4EC
+P 7350 3700
+F 0 "U1" H 7400 3800 30  0000 C CNN
+F 1 "PORT" H 7350 3700 30  0000 C CNN
+F 2 "" H 7350 3700 60  0000 C CNN
+F 3 "" H 7350 3700 60  0000 C CNN
+	8    7350 3700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 684BB5BA
+P 10500 1600
+F 0 "U1" H 10550 1700 30  0000 C CNN
+F 1 "PORT" H 10500 1600 30  0000 C CNN
+F 2 "" H 10500 1600 60  0000 C CNN
+F 3 "" H 10500 1600 60  0000 C CNN
+	9    10500 1600
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 684BB6E5
+P 10500 1850
+F 0 "U1" H 10550 1950 30  0000 C CNN
+F 1 "PORT" H 10500 1850 30  0000 C CNN
+F 2 "" H 10500 1850 60  0000 C CNN
+F 3 "" H 10500 1850 60  0000 C CNN
+	10   10500 1850
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 11 1 684BB74E
+P 10500 2100
+F 0 "U1" H 10550 2200 30  0000 C CNN
+F 1 "PORT" H 10500 2100 30  0000 C CNN
+F 2 "" H 10500 2100 60  0000 C CNN
+F 3 "" H 10500 2100 60  0000 C CNN
+	11   10500 2100
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 12 1 684BB809
+P 10500 2350
+F 0 "U1" H 10550 2450 30  0000 C CNN
+F 1 "PORT" H 10500 2350 30  0000 C CNN
+F 2 "" H 10500 2350 60  0000 C CNN
+F 3 "" H 10500 2350 60  0000 C CNN
+	12   10500 2350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 13 1 684BB87A
+P 10500 2800
+F 0 "U1" H 10550 2900 30  0000 C CNN
+F 1 "PORT" H 10500 2800 30  0000 C CNN
+F 2 "" H 10500 2800 60  0000 C CNN
+F 3 "" H 10500 2800 60  0000 C CNN
+	13   10500 2800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 14 1 684BB913
+P 10500 3000
+F 0 "U1" H 10550 3100 30  0000 C CNN
+F 1 "PORT" H 10500 3000 30  0000 C CNN
+F 2 "" H 10500 3000 60  0000 C CNN
+F 3 "" H 10500 3000 60  0000 C CNN
+	14   10500 3000
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 15 1 684BB98A
+P 10500 3250
+F 0 "U1" H 10550 3350 30  0000 C CNN
+F 1 "PORT" H 10500 3250 30  0000 C CNN
+F 2 "" H 10500 3250 60  0000 C CNN
+F 3 "" H 10500 3250 60  0000 C CNN
+	15   10500 3250
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 16 1 684BB9EB
+P 10500 3550
+F 0 "U1" H 10550 3650 30  0000 C CNN
+F 1 "PORT" H 10500 3550 30  0000 C CNN
+F 2 "" H 10500 3550 60  0000 C CNN
+F 3 "" H 10500 3550 60  0000 C CNN
+	16   10500 3550
+	-1   0    0    -1  
+$EndComp
+Wire Wire Line
+	9950 1600 10250 1600
+Wire Wire Line
+	9950 1850 10250 1850
+Wire Wire Line
+	9950 2100 10250 2100
+Wire Wire Line
+	9950 2350 10250 2350
+Wire Wire Line
+	9950 2800 10250 2800
+Wire Wire Line
+	9950 3000 10250 3000
+Wire Wire Line
+	9950 3250 10250 3250
+Wire Wire Line
+	9950 3550 10250 3550
+Wire Wire Line
+	7600 3250 7750 3250
+Wire Wire Line
+	7600 3700 7600 3600
+Connection ~ 7600 3600
+Wire Wire Line
+	7600 1500 7600 1600
+Connection ~ 7600 1600
+Wire Wire Line
+	1650 1700 1900 1700
+Wire Wire Line
+	1650 2700 1900 2700
+Wire Wire Line
+	1650 3750 1900 3750
+Wire Wire Line
+	1650 5000 1850 5000
+Wire Wire Line
+	1650 6250 1950 6250
+$Comp
+L SKY130mode scmode1
+U 1 1 684BCA2F
+P 8750 5500
+F 0 "scmode1" H 8750 5650 98  0000 C CNB
+F 1 "SKY130mode" H 8750 5400 118 0000 C CNB
+F 2 "" H 8750 5650 60  0001 C CNN
+F 3 "" H 8750 5650 60  0001 C CNN
+	1    8750 5500
+	1    0    0    -1  
+$EndComp
+$Comp
+L Decoder_38_Address_Latch_storage X11
+U 1 1 684CFBD4
+P 8850 2600
+F 0 "X11" H 8850 2450 60  0000 C CNN
+F 1 "Decoder_38_Address_Latch_storage" H 8950 2600 60  0000 C CNN
+F 2 "" H 8850 2600 60  0001 C CNN
+F 3 "" H 8850 2600 60  0001 C CNN
+	1    8850 2600
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74HC259/SN74HC259.sub b/library/SubcircuitLibrary/SN74HC259/SN74HC259.sub
new file mode 100644
index 000000000..279089f43
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/SN74HC259.sub
@@ -0,0 +1,23 @@
+* Subcircuit SN74HC259
+.subckt SN74HC259 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/sn74hc259/sn74hc259.cir
+.include CMOS_INVTR.sub
+.include Schmitt_Trigger.sub
+.include Decoder_38_Address_Latch_storage.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x6 net-_x11-pad17_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad13_ CMOS_INVTR
+x7 net-_x11-pad18_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad14_ CMOS_INVTR
+x8 net-_x11-pad19_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad15_ CMOS_INVTR
+x9 net-_x1-pad4_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad16_ CMOS_INVTR
+x10 net-_x10-pad1_ net-_u1-pad6_ net-_u1-pad8_ net-_x10-pad4_ CMOS_INVTR
+x2 net-_u1-pad1_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad17_ Schmitt_Trigger
+x3 net-_u1-pad2_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad18_ Schmitt_Trigger
+x4 net-_u1-pad3_ net-_u1-pad6_ net-_u1-pad8_ net-_x11-pad19_ Schmitt_Trigger
+x1 net-_u1-pad4_ net-_u1-pad6_ net-_u1-pad8_ net-_x1-pad4_ Schmitt_Trigger
+x5 net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad8_ net-_x10-pad1_ Schmitt_Trigger
+* s c m o d e
+x11 net-_u1-pad9_ net-_u1-pad11_ net-_u1-pad10_ net-_u1-pad12_ net-_u1-pad6_ net-_u1-pad8_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ net-_x10-pad4_ net-_u1-pad7_ net-_x11-pad13_ net-_x11-pad14_ net-_x11-pad15_ net-_x11-pad16_ net-_x11-pad17_ net-_x11-pad18_ net-_x11-pad19_ Decoder_38_Address_Latch_storage
+* Control Statements
+
+.ends SN74HC259
diff --git a/library/SubcircuitLibrary/SN74HC259/SN74HC259_Previous_Values.xml b/library/SubcircuitLibrary/SN74HC259/SN74HC259_Previous_Values.xml
new file mode 100644
index 000000000..67532ae04
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/SN74HC259_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x6><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x6><x7><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x7><x8><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x8><x9><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x9><x10><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/CMOS_INVTR</field></x10><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Schmitt_Trigger</field></x2><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Schmitt_Trigger</field></x3><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Schmitt_Trigger</field></x4><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Schmitt_Trigger</field></x1><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Schmitt_Trigger</field></x5><x11><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Decoder_38_Address_Latch_storage</field></x11></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger-cache.lib b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.cir b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.cir
new file mode 100644
index 000000000..36477c500
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.cir
@@ -0,0 +1,20 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Schmitt_Trigger/Schmitt_Trigger.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Mon Jun  9 08:39:40 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC2-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad1_ Net-_SC1-Pad1_ sky130_fd_pr__pfet_01v8		
+SC3  Net-_SC2-Pad1_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC3-Pad3_ Net-_SC1-Pad2_ Net-_SC4-Pad3_ Net-_SC4-Pad3_ sky130_fd_pr__nfet_01v8		
+SC5  Net-_SC4-Pad3_ Net-_SC2-Pad1_ Net-_SC1-Pad1_ Net-_SC1-Pad1_ sky130_fd_pr__pfet_01v8		
+SC6  Net-_SC1-Pad3_ Net-_SC2-Pad1_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__nfet_01v8		
+SC7  Net-_SC7-Pad1_ Net-_SC2-Pad1_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC8  Net-_SC7-Pad1_ Net-_SC2-Pad1_ Net-_SC4-Pad3_ Net-_SC4-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC4-Pad3_ Net-_SC7-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.cir.out b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.cir.out
new file mode 100644
index 000000000..3935e9ff4
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.cir.out
@@ -0,0 +1,24 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/schmitt_trigger/schmitt_trigger.cir
+
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc3-pad3_ net-_sc1-pad2_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc5 net-_sc4-pad3_ net-_sc2-pad1_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc6 net-_sc1-pad3_ net-_sc2-pad1_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc7 net-_sc7-pad1_ net-_sc2-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc8 net-_sc7-pad1_ net-_sc2-pad1_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc4-pad3_ net-_sc7-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.pro b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.sch b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.sch
new file mode 100644
index 000000000..f8fee114a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.sch
@@ -0,0 +1,312 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
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+$EndDescr
+$Comp
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+F 2 "" H 3850 100 50  0001 C CNN
+F 3 "" H 3850 1600 50  0001 C CNN
+	1    3850 1600
+	1    0    0    -1  
+$EndComp
+$Comp
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+U 1 1 68465252
+P 3850 2400
+F 0 "SC2" H 3900 2700 50  0000 C CNN
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+F 2 "" H 3850 900 50  0001 C CNN
+F 3 "" H 3850 2400 50  0001 C CNN
+	1    3850 2400
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+$EndComp
+$Comp
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+$EndComp
+$Comp
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+$EndComp
+$Comp
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+F 2 "" H 4850 700 50  0001 C CNN
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+	1    4850 2200
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+$EndComp
+$Comp
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+F 2 "" H 4850 2100 50  0001 C CNN
+F 3 "" H 4850 3600 50  0001 C CNN
+	1    4850 3600
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+$EndComp
+$Comp
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+F 2 "" H 5900 400 50  0001 C CNN
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+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC8
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+F 2 "" H 5900 2400 50  0001 C CNN
+F 3 "" H 5900 3900 50  0001 C CNN
+	1    5900 3900
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+Wire Wire Line
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+	1    2850 2900
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+F 3 "" H 4500 1050 60  0000 C CNN
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+$EndComp
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+F 1 "PORT" H 6600 2950 30  0000 C CNN
+F 2 "" H 6600 2950 60  0000 C CNN
+F 3 "" H 6600 2950 60  0000 C CNN
+	4    6600 2950
+	-1   0    0    1   
+$EndComp
+$Comp
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+U 3 1 68466640
+P 4600 4800
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+F 1 "PORT" H 4600 4800 30  0000 C CNN
+F 2 "" H 4600 4800 60  0000 C CNN
+F 3 "" H 4600 4800 60  0000 C CNN
+	3    4600 4800
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 6100 2950
+Wire Wire Line
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+Connection ~ 4750 1300
+$Comp
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+U 1 1 6846736A
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+F 1 "SKY130mode" H 8750 3550 118 0000 C CNB
+F 2 "" H 8750 3800 60  0001 C CNN
+F 3 "" H 8750 3800 60  0001 C CNN
+	1    8750 3650
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+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.sub b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.sub
new file mode 100644
index 000000000..48e9e5d96
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger.sub
@@ -0,0 +1,18 @@
+* Subcircuit Schmitt_Trigger
+.subckt Schmitt_Trigger net-_sc1-pad2_ net-_sc1-pad3_ net-_sc4-pad3_ net-_sc7-pad1_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/schmitt_trigger/schmitt_trigger.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc2-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc3-pad3_ net-_sc1-pad2_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc5 net-_sc4-pad3_ net-_sc2-pad1_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc6 net-_sc1-pad3_ net-_sc2-pad1_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc7 net-_sc7-pad1_ net-_sc2-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc8 net-_sc7-pad1_ net-_sc2-pad1_ net-_sc4-pad3_ net-_sc4-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends Schmitt_Trigger
diff --git a/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger_Previous_Values.xml b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger_Previous_Values.xml
new file mode 100644
index 000000000..7d6ec6b4d
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/Schmitt_Trigger_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=3 l=0.15</field></sc2><sc3><field>w=1 l=0.15</field></sc3><sc4><field>w=1 l=0.15</field></sc4><sc5><field>w=3 l=0.15</field></sc5><sc6><field>w=1 l=0.15</field></sc6><sc7><field>w=3 l=0.15</field></sc7><sc8><field>w=1 l=0.15</field></sc8></devicemodel><subcircuit /></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74HC259/analysis b/library/SubcircuitLibrary/SN74HC259/analysis
new file mode 100644
index 000000000..ebd5c0a94
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74HC259/analysis
@@ -0,0 +1 @@
+.tran 0e-00 0e-00 0e-00
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR-cache.lib b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.cir b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.cir
new file mode 100644
index 000000000..798338152
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.cir
@@ -0,0 +1,14 @@
+* H:\esim\eSim\library\SubcircuitLibrary\CMOS_INVTR\CMOS_INVTR.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 07/12/25 16:02:08
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.cir.out b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.cir.out
new file mode 100644
index 000000000..268de8701
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.cir.out
@@ -0,0 +1,16 @@
+* h:\esim\esim\library\subcircuitlibrary\cmos_invtr\cmos_invtr.cir
+
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.pro b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.sch b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.sch
new file mode 100644
index 000000000..aa7a7ee81
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.sch
@@ -0,0 +1,161 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 684B982F
+P 5350 2950
+F 0 "SC1" H 5400 3250 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5650 3037 50  0000 R CNN
+F 2 "" H 5350 1450 50  0001 C CNN
+F 3 "" H 5350 2950 50  0001 C CNN
+	1    5350 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 684B9856
+P 5350 3800
+F 0 "SC2" H 5400 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5650 3887 50  0000 R CNN
+F 2 "" H 5350 2300 50  0001 C CNN
+F 3 "" H 5350 3800 50  0001 C CNN
+	1    5350 3800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 684B98AD
+P 4550 3300
+F 0 "U1" H 4600 3400 30  0000 C CNN
+F 1 "PORT" H 4550 3300 30  0000 C CNN
+F 2 "" H 4550 3300 60  0000 C CNN
+F 3 "" H 4550 3300 60  0000 C CNN
+	1    4550 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 684B98D8
+P 6300 3350
+F 0 "U1" H 6350 3450 30  0000 C CNN
+F 1 "PORT" H 6300 3350 30  0000 C CNN
+F 2 "" H 6300 3350 60  0000 C CNN
+F 3 "" H 6300 3350 60  0000 C CNN
+	4    6300 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 684B9935
+P 5300 4350
+F 0 "U1" H 5350 4450 30  0000 C CNN
+F 1 "PORT" H 5300 4350 30  0000 C CNN
+F 2 "" H 5300 4350 60  0000 C CNN
+F 3 "" H 5300 4350 60  0000 C CNN
+	3    5300 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 684B999A
+P 5300 2350
+F 0 "U1" H 5350 2450 30  0000 C CNN
+F 1 "PORT" H 5300 2350 30  0000 C CNN
+F 2 "" H 5300 2350 60  0000 C CNN
+F 3 "" H 5300 2350 60  0000 C CNN
+	2    5300 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 684B99CD
+P 7950 3000
+F 0 "scmode1" H 7950 3150 98  0000 C CNB
+F 1 "SKY130mode" H 7950 2900 118 0000 C CNB
+F 2 "" H 7950 3150 60  0001 C CNN
+F 3 "" H 7950 3150 60  0001 C CNN
+	1    7950 3000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5550 2650 5550 2350
+Wire Wire Line
+	5450 2950 5600 2950
+Wire Wire Line
+	5600 2950 5600 2550
+Wire Wire Line
+	5600 2550 5550 2550
+Connection ~ 5550 2550
+Wire Wire Line
+	5550 3250 5550 3500
+Wire Wire Line
+	6050 3350 5550 3350
+Connection ~ 5550 3350
+Wire Wire Line
+	5050 2950 5050 3800
+Wire Wire Line
+	4800 3300 5050 3300
+Connection ~ 5050 3300
+Wire Wire Line
+	5450 3800 5600 3800
+Wire Wire Line
+	5600 3800 5600 4150
+Wire Wire Line
+	5600 4150 5550 4150
+Wire Wire Line
+	5550 4100 5550 4350
+Connection ~ 5550 4150
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.sub b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.sub
new file mode 100644
index 000000000..dfe6de3e5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR.sub
@@ -0,0 +1,10 @@
+* Subcircuit CMOS_INVTR
+.subckt CMOS_INVTR net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc1-pad1_ 
+* h:\esim\esim\library\subcircuitlibrary\cmos_invtr\cmos_invtr.cir
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends CMOS_INVTR
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR_Previous_Values.xml b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR_Previous_Values.xml
new file mode 100644
index 000000000..af4904616
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/CMOS_INVTR_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/DFF_CE-cache.lib b/library/SubcircuitLibrary/SN74LS548/DFF_CE-cache.lib
new file mode 100644
index 000000000..8f800f53f
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/DFF_CE-cache.lib
@@ -0,0 +1,103 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# D_FF
+#
+DEF D_FF X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "D_FF" 50 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 200 300 -200 0 1 0 N
+X D 1 -450 50 200 R 50 50 1 1 I
+X CLK 2 -450 -50 200 R 50 50 1 1 I
+X VDD 3 -450 150 200 R 50 50 1 1 I
+X GND 4 -450 -150 200 R 50 50 1 1 I
+X OUT 5 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74LS548/DFF_CE-rescue.lib b/library/SubcircuitLibrary/SN74LS548/DFF_CE-rescue.lib
new file mode 100644
index 000000000..970123cab
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/DFF_CE-rescue.lib
@@ -0,0 +1,21 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# D_FF-RESCUE-DFF_CE
+#
+DEF D_FF-RESCUE-DFF_CE X 0 40 Y Y 1 F N
+F0 "X" 100 100 60 H V C CNN
+F1 "D_FF-RESCUE-DFF_CE" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -200 200 200 -150 0 1 0 N
+X D 1 -400 50 200 R 50 50 1 1 I
+X Clk 2 -400 -50 200 R 50 50 1 1 I
+X Vdd 3 0 400 200 D 50 50 1 1 I
+X Gnd 4 0 -350 200 U 50 50 1 1 I
+X Q 5 400 -50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74LS548/DFF_CE.bak b/library/SubcircuitLibrary/SN74LS548/DFF_CE.bak
new file mode 100644
index 000000000..749dc6a77
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/DFF_CE.bak
@@ -0,0 +1,172 @@
+EESchema Schematic File Version 2
+LIBS:DFF_CE-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:DFF_CE-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 68712618
+P 4750 2800
+F 0 "SC1" H 4800 3100 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5050 2887 50  0000 R CNN
+F 2 "" H 4750 1300 50  0001 C CNN
+F 3 "" H 4750 2800 50  0001 C CNN
+	1    4750 2800
+	0    -1   1    0   
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 6871269E
+P 9750 3750
+F 0 "scmode1" H 9750 3900 98  0000 C CNB
+F 1 "SKY130mode" H 9750 3650 118 0000 C CNB
+F 2 "" H 9750 3900 60  0001 C CNN
+F 3 "" H 9750 3900 60  0001 C CNN
+	1    9750 3750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 687126DC
+P 4200 3050
+F 0 "U1" H 4250 3150 30  0000 C CNN
+F 1 "PORT" H 4200 3050 30  0000 C CNN
+F 2 "" H 4200 3050 60  0000 C CNN
+F 3 "" H 4200 3050 60  0000 C CNN
+	1    4200 3050
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4750 2900 4750 3050
+Wire Wire Line
+	4750 3050 4450 3050
+Wire Wire Line
+	4450 3050 4450 3000
+Connection ~ 4450 3050
+$Comp
+L PORT U1
+U 3 1 687127CB
+P 5000 2300
+F 0 "U1" H 5050 2400 30  0000 C CNN
+F 1 "PORT" H 5000 2300 30  0000 C CNN
+F 2 "" H 5000 2300 60  0000 C CNN
+F 3 "" H 5000 2300 60  0000 C CNN
+	3    5000 2300
+	0    1    1    0   
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68712813
+P 4500 2500
+F 0 "U1" H 4550 2600 30  0000 C CNN
+F 1 "PORT" H 4500 2500 30  0000 C CNN
+F 2 "" H 4500 2500 60  0000 C CNN
+F 3 "" H 4500 2500 60  0000 C CNN
+	2    4500 2500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 6871285A
+P 5300 2650
+F 0 "U1" H 5350 2750 30  0000 C CNN
+F 1 "PORT" H 5300 2650 30  0000 C CNN
+F 2 "" H 5300 2650 60  0000 C CNN
+F 3 "" H 5300 2650 60  0000 C CNN
+	4    5300 2650
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 687128A1
+P 5300 3250
+F 0 "U1" H 5350 3350 30  0000 C CNN
+F 1 "PORT" H 5300 3250 30  0000 C CNN
+F 2 "" H 5300 3250 60  0000 C CNN
+F 3 "" H 5300 3250 60  0000 C CNN
+	5    5300 3250
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 6 1 687128DA
+P 6250 2950
+F 0 "U1" H 6300 3050 30  0000 C CNN
+F 1 "PORT" H 6250 2950 30  0000 C CNN
+F 2 "" H 6250 2950 60  0000 C CNN
+F 3 "" H 6250 2950 60  0000 C CNN
+	6    6250 2950
+	-1   0    0    -1  
+$EndComp
+$Comp
+L D_FF X1
+U 1 1 6877C57A
+P 5500 2950
+F 0 "X1" H 5500 2950 60  0000 C CNN
+F 1 "D_FF" H 5550 2700 60  0000 C CNN
+F 2 "" H 5500 2950 60  0001 C CNN
+F 3 "" H 5500 2950 60  0001 C CNN
+	1    5500 2950
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5050 2650 5050 2800
+Wire Wire Line
+	5000 2550 5000 2900
+Wire Wire Line
+	5000 2900 5050 2900
+Wire Wire Line
+	5050 3250 5050 3100
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74LS548/DFF_CE.cir b/library/SubcircuitLibrary/SN74LS548/DFF_CE.cir
new file mode 100644
index 000000000..bdc89679c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/DFF_CE.cir
@@ -0,0 +1,14 @@
+* H:\esim\eSim\library\SubcircuitLibrary\DFF_CE\DFF_CE.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 07/16/25 20:58:59
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+scmode1  SKY130mode		
+U1  Net-_SC1-Pad3_ Net-_SC1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ PORT		
+X1  Net-_U1-Pad3_ Net-_SC1-Pad1_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ D_FF		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/DFF_CE.cir.out b/library/SubcircuitLibrary/SN74LS548/DFF_CE.cir.out
new file mode 100644
index 000000000..227f8666c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/DFF_CE.cir.out
@@ -0,0 +1,17 @@
+* h:\esim\esim\library\subcircuitlibrary\dff_ce\dff_ce.cir
+
+.include D_FF.sub
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+* s c m o d e
+* u1  net-_sc1-pad3_ net-_sc1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ port
+x1 net-_u1-pad3_ net-_sc1-pad1_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ D_FF
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/DFF_CE.pro b/library/SubcircuitLibrary/SN74LS548/DFF_CE.pro
new file mode 100644
index 000000000..0cac01afd
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/DFF_CE.pro
@@ -0,0 +1,74 @@
+update=07/16/25 20:56:16
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=DFF_CE-rescue
+LibName2=adc-dac
+LibName3=memory
+LibName4=xilinx
+LibName5=microcontrollers
+LibName6=dsp
+LibName7=microchip
+LibName8=analog_switches
+LibName9=motorola
+LibName10=texas
+LibName11=intel
+LibName12=audio
+LibName13=interface
+LibName14=digital-audio
+LibName15=philips
+LibName16=display
+LibName17=cypress
+LibName18=siliconi
+LibName19=opto
+LibName20=atmel
+LibName21=contrib
+LibName22=power
+LibName23=eSim_Plot
+LibName24=transistors
+LibName25=conn
+LibName26=eSim_User
+LibName27=regul
+LibName28=74xx
+LibName29=cmos4000
+LibName30=eSim_Analog
+LibName31=eSim_Devices
+LibName32=eSim_Digital
+LibName33=eSim_Hybrid
+LibName34=eSim_Miscellaneous
+LibName35=eSim_Power
+LibName36=eSim_Sources
+LibName37=eSim_Subckt
+LibName38=eSim_Nghdl
+LibName39=eSim_Ngveri
+LibName40=eSim_SKY130
+LibName41=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74LS548/DFF_CE.sch b/library/SubcircuitLibrary/SN74LS548/DFF_CE.sch
new file mode 100644
index 000000000..749dc6a77
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/DFF_CE.sch
@@ -0,0 +1,172 @@
+EESchema Schematic File Version 2
+LIBS:DFF_CE-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:DFF_CE-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
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+	1    4750 2800
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+$EndComp
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+	3    5000 2300
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+$EndComp
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+F 2 "" H 5500 2950 60  0001 C CNN
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+	1    5500 2950
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diff --git a/library/SubcircuitLibrary/SN74LS548/DFF_CE.sub b/library/SubcircuitLibrary/SN74LS548/DFF_CE.sub
new file mode 100644
index 000000000..4bb98577f
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/DFF_CE.sub
@@ -0,0 +1,10 @@
+* Subcircuit DFF_CE
+.subckt DFF_CE net-_sc1-pad3_ net-_sc1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ 
+* h:\esim\esim\library\subcircuitlibrary\dff_ce\dff_ce.cir
+.include D_FF.sub
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+* s c m o d e
+x1 net-_u1-pad3_ net-_sc1-pad1_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ D_FF
+* Control Statements
+
+.ends DFF_CE
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/DFF_CE_Previous_Values.xml b/library/SubcircuitLibrary/SN74LS548/DFF_CE_Previous_Values.xml
new file mode 100644
index 000000000..21a8422bd
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/DFF_CE_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1></devicemodel><subcircuit><x1><field>H:\esim\eSim\library\SubcircuitLibrary\D_FF</field></x1></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/D_FF-cache.lib b/library/SubcircuitLibrary/SN74LS548/D_FF-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/D_FF-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
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+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74LS548/D_FF.bak b/library/SubcircuitLibrary/SN74LS548/D_FF.bak
new file mode 100644
index 000000000..61b02ff48
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/D_FF.bak
@@ -0,0 +1,246 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
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+$Comp
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+F 2 "" H 9400 3350 60  0001 C CNN
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+$Comp
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+$EndComp
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+$EndComp
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+$Comp
+L PORT U?
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diff --git a/library/SubcircuitLibrary/SN74LS548/D_FF.cir b/library/SubcircuitLibrary/SN74LS548/D_FF.cir
new file mode 100644
index 000000000..0a7e96074
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/D_FF.cir
@@ -0,0 +1,17 @@
+* H:\esim\eSim\library\SubcircuitLibrary\D_FF\D_FF.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 07/16/25 12:03:13
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+scmode1  SKY130mode		
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC2-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+SC3  Net-_SC2-Pad3_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC4-Pad1_ Net-_SC1-Pad1_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC5  Net-_SC4-Pad1_ Net-_SC2-Pad3_ Net-_SC3-Pad3_ Net-_SC3-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC2-Pad2_ Net-_SC1-Pad3_ Net-_SC3-Pad3_ Net-_SC4-Pad1_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/D_FF.cir.out b/library/SubcircuitLibrary/SN74LS548/D_FF.cir.out
new file mode 100644
index 000000000..27dfd2ff9
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/D_FF.cir.out
@@ -0,0 +1,19 @@
+* h:\esim\esim\library\subcircuitlibrary\d_ff\d_ff.cir
+
+
+* s c m o d e
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc3 net-_sc2-pad3_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc4-pad1_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc4-pad1_ net-_sc2-pad3_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc3-pad3_ net-_sc4-pad1_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/D_FF.pro b/library/SubcircuitLibrary/SN74LS548/D_FF.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/D_FF.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74LS548/D_FF.sch b/library/SubcircuitLibrary/SN74LS548/D_FF.sch
new file mode 100644
index 000000000..722069493
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/D_FF.sch
@@ -0,0 +1,246 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode1
+U 1 1 685A3E76
+P 9400 3200
+F 0 "scmode1" H 9400 3350 98  0000 C CNB
+F 1 "SKY130mode" H 9400 3100 118 0000 C CNB
+F 2 "" H 9400 3350 60  0001 C CNN
+F 3 "" H 9400 3350 60  0001 C CNN
+	1    9400 3200
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 685A3EBD
+P 4000 3300
+F 0 "SC1" H 4050 3600 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4300 3387 50  0000 R CNN
+F 2 "" H 4000 1800 50  0001 C CNN
+F 3 "" H 4000 3300 50  0001 C CNN
+	1    4000 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 685A3EFC
+P 4000 4100
+F 0 "SC2" H 4050 4400 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4187 50  0000 R CNN
+F 2 "" H 4000 2600 50  0001 C CNN
+F 3 "" H 4000 4100 50  0001 C CNN
+	1    4000 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 685A3F47
+P 4000 4900
+F 0 "SC3" H 4050 5200 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 4300 4987 50  0000 R CNN
+F 2 "" H 4000 3400 50  0001 C CNN
+F 3 "" H 4000 4900 50  0001 C CNN
+	1    4000 4900
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC4
+U 1 1 685A3F7A
+P 4950 3700
+F 0 "SC4" H 5000 4000 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5250 3787 50  0000 R CNN
+F 2 "" H 4950 2200 50  0001 C CNN
+F 3 "" H 4950 3700 50  0001 C CNN
+	1    4950 3700
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC5
+U 1 1 685A3FCF
+P 4950 4500
+F 0 "SC5" H 5000 4800 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5250 4587 50  0000 R CNN
+F 2 "" H 4950 3000 50  0001 C CNN
+F 3 "" H 4950 4500 50  0001 C CNN
+	1    4950 4500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 685A401A
+P 3250 3550
+F 0 "U1" H 3300 3650 30  0000 C CNN
+F 1 "PORT" H 3250 3550 30  0000 C CNN
+F 2 "" H 3250 3550 60  0000 C CNN
+F 3 "" H 3250 3550 60  0000 C CNN
+	1    3250 3550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 685A40FF
+P 3250 4100
+F 0 "U1" H 3300 4200 30  0000 C CNN
+F 1 "PORT" H 3250 4100 30  0000 C CNN
+F 2 "" H 3250 4100 60  0000 C CNN
+F 3 "" H 3250 4100 60  0000 C CNN
+	2    3250 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 685A4132
+P 3950 2750
+F 0 "U1" H 4000 2850 30  0000 C CNN
+F 1 "PORT" H 3950 2750 30  0000 C CNN
+F 2 "" H 3950 2750 60  0000 C CNN
+F 3 "" H 3950 2750 60  0000 C CNN
+	3    3950 2750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 685A41B1
+P 3950 5350
+F 0 "U1" H 4000 5450 30  0000 C CNN
+F 1 "PORT" H 3950 5350 30  0000 C CNN
+F 2 "" H 3950 5350 60  0000 C CNN
+F 3 "" H 3950 5350 60  0000 C CNN
+	4    3950 5350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 685A4206
+P 5700 4100
+F 0 "U1" H 5750 4200 30  0000 C CNN
+F 1 "PORT" H 5700 4100 30  0000 C CNN
+F 2 "" H 5700 4100 60  0000 C CNN
+F 3 "" H 5700 4100 60  0000 C CNN
+	5    5700 4100
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	4200 3600 4200 3800
+Wire Wire Line
+	3700 3300 3600 3300
+Wire Wire Line
+	3600 3300 3600 4900
+Wire Wire Line
+	3600 4900 3700 4900
+Wire Wire Line
+	3500 3550 3600 3550
+Connection ~ 3600 3550
+Wire Wire Line
+	3500 4100 3700 4100
+Wire Wire Line
+	4200 2750 4200 3000
+Wire Wire Line
+	4650 3700 4200 3700
+Connection ~ 4200 3700
+Wire Wire Line
+	4200 4400 4200 4600
+Wire Wire Line
+	4650 4500 4200 4500
+Connection ~ 4200 4500
+Wire Wire Line
+	5150 4000 5150 4200
+Wire Wire Line
+	5450 4100 5150 4100
+Connection ~ 5150 4100
+Wire Wire Line
+	4200 5200 4200 5350
+Wire Wire Line
+	4100 4900 4250 4900
+Wire Wire Line
+	4250 4900 4250 5250
+Wire Wire Line
+	4200 5250 5150 5250
+Connection ~ 4200 5250
+Wire Wire Line
+	5150 5250 5150 4800
+Connection ~ 4250 5250
+Wire Wire Line
+	5050 4500 5200 4500
+Wire Wire Line
+	5200 4500 5200 4850
+Wire Wire Line
+	5200 4850 5150 4850
+Connection ~ 5150 4850
+Wire Wire Line
+	4100 4100 4250 4100
+Wire Wire Line
+	4250 4100 4250 4500
+Connection ~ 4250 4500
+Wire Wire Line
+	4100 3300 4250 3300
+Wire Wire Line
+	4250 3300 4250 2950
+Wire Wire Line
+	4200 2950 5150 2950
+Connection ~ 4200 2950
+Wire Wire Line
+	5150 2950 5150 3400
+Connection ~ 4250 2950
+Wire Wire Line
+	5050 3700 5200 3700
+Wire Wire Line
+	5200 3700 5200 3350
+Wire Wire Line
+	5200 3350 5150 3350
+Connection ~ 5150 3350
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74LS548/D_FF.sub b/library/SubcircuitLibrary/SN74LS548/D_FF.sub
new file mode 100644
index 000000000..194596578
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/D_FF.sub
@@ -0,0 +1,13 @@
+* Subcircuit D_FF
+.subckt D_FF net-_sc1-pad2_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc3-pad3_ net-_sc4-pad1_ 
+* h:\esim\esim\library\subcircuitlibrary\d_ff\d_ff.cir
+
+* s c m o d e
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc3 net-_sc2-pad3_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc4-pad1_ net-_sc1-pad1_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc5 net-_sc4-pad1_ net-_sc2-pad3_ net-_sc3-pad3_ net-_sc3-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* Control Statements
+
+.ends D_FF
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/D_FF_Previous_Values.xml b/library/SubcircuitLibrary/SN74LS548/D_FF_Previous_Values.xml
new file mode 100644
index 000000000..cdc78294b
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/D_FF_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2><sc3><field>w=1 l=0.15</field></sc3><sc4><field>w=3 l=0.15</field></sc4><sc5><field>w=1 l=0.15</field></sc5></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/MUX_21-cache.lib b/library/SubcircuitLibrary/SN74LS548/MUX_21-cache.lib
new file mode 100644
index 000000000..cd968f1fb
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/MUX_21-cache.lib
@@ -0,0 +1,98 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" -50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 250 0 50 0 1 0 N
+P 2 0 1 0 -250 150 200 0 N
+P 3 0 1 0 -250 150 -250 -150 200 0 N
+X IN 1 -450 0 200 R 50 50 1 1 I
+X VDD 2 -450 100 200 R 50 50 1 1 I
+X GND 3 -450 -100 200 R 50 50 1 1 I
+X OUT 4 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74LS548/MUX_21-rescue.lib b/library/SubcircuitLibrary/SN74LS548/MUX_21-rescue.lib
new file mode 100644
index 000000000..d9053d1b6
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/MUX_21-rescue.lib
@@ -0,0 +1,22 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# CMOS_INVTR-RESCUE-MUX_21
+#
+DEF CMOS_INVTR-RESCUE-MUX_21 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR-RESCUE-MUX_21" 50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 300 0 50 0 1 0 N
+P 2 0 1 0 -200 150 250 0 N
+P 3 0 1 0 -200 150 -200 -150 250 0 N
+X in 1 -400 0 200 R 50 50 1 1 I
+X Vdd 2 -400 100 200 R 50 50 1 1 I
+X Gnd 3 -400 -100 200 R 50 50 1 1 I
+X Out 4 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74LS548/MUX_21.bak b/library/SubcircuitLibrary/SN74LS548/MUX_21.bak
new file mode 100644
index 000000000..fea7fc6c8
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/MUX_21.bak
@@ -0,0 +1,196 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L CMOS_INVTR X1
+U 1 1 68711FA9
+P 5650 1650
+F 0 "X1" H 5650 1650 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5700 1450 60  0000 C CNN
+F 2 "" H 5650 1650 60  0001 C CNN
+F 3 "" H 5650 1650 60  0001 C CNN
+	1    5650 1650
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 68711FE2
+P 4700 2000
+F 0 "SC1" H 4750 2300 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5000 2087 50  0000 R CNN
+F 2 "" H 4700 500 50  0001 C CNN
+F 3 "" H 4700 2000 50  0001 C CNN
+	1    4700 2000
+	0    1    1    0   
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 68712114
+P 6200 2300
+F 0 "SC2" H 6250 2600 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6500 2387 50  0000 R CNN
+F 2 "" H 6200 800 50  0001 C CNN
+F 3 "" H 6200 2300 50  0001 C CNN
+	1    6200 2300
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	4250 1650 5250 1650
+Wire Wire Line
+	4700 1700 4700 1650
+Connection ~ 4700 1650
+Wire Wire Line
+	4400 2200 4250 2200
+Wire Wire Line
+	4700 2100 4700 2250
+Wire Wire Line
+	4700 2250 4350 2250
+Wire Wire Line
+	4350 2250 4350 2200
+Connection ~ 4350 2200
+Wire Wire Line
+	6200 1650 6200 2000
+Wire Wire Line
+	5900 2500 4250 2500
+Wire Wire Line
+	6200 2400 6200 2550
+Wire Wire Line
+	6200 2550 5800 2550
+Wire Wire Line
+	5800 2550 5800 2500
+Connection ~ 5800 2500
+Wire Wire Line
+	5000 2200 6850 2200
+Wire Wire Line
+	6500 2200 6500 2500
+Connection ~ 6500 2200
+$Comp
+L PORT U1
+U 1 1 687121FA
+P 4000 1650
+F 0 "U1" H 4050 1750 30  0000 C CNN
+F 1 "PORT" H 4000 1650 30  0000 C CNN
+F 2 "" H 4000 1650 60  0000 C CNN
+F 3 "" H 4000 1650 60  0000 C CNN
+	1    4000 1650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68712241
+P 4000 2200
+F 0 "U1" H 4050 2300 30  0000 C CNN
+F 1 "PORT" H 4000 2200 30  0000 C CNN
+F 2 "" H 4000 2200 60  0000 C CNN
+F 3 "" H 4000 2200 60  0000 C CNN
+	2    4000 2200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 6871226C
+P 4000 2500
+F 0 "U1" H 4050 2600 30  0000 C CNN
+F 1 "PORT" H 4000 2500 30  0000 C CNN
+F 2 "" H 4000 2500 60  0000 C CNN
+F 3 "" H 4000 2500 60  0000 C CNN
+	3    4000 2500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68712295
+P 5000 1550
+F 0 "U1" H 5050 1650 30  0000 C CNN
+F 1 "PORT" H 5000 1550 30  0000 C CNN
+F 2 "" H 5000 1550 60  0000 C CNN
+F 3 "" H 5000 1550 60  0000 C CNN
+	4    5000 1550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 687122E8
+P 5000 1750
+F 0 "U1" H 5050 1850 30  0000 C CNN
+F 1 "PORT" H 5000 1750 30  0000 C CNN
+F 2 "" H 5000 1750 60  0000 C CNN
+F 3 "" H 5000 1750 60  0000 C CNN
+	5    5000 1750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 68712317
+P 7100 2200
+F 0 "U1" H 7150 2300 30  0000 C CNN
+F 1 "PORT" H 7100 2200 30  0000 C CNN
+F 2 "" H 7100 2200 60  0000 C CNN
+F 3 "" H 7100 2200 60  0000 C CNN
+	6    7100 2200
+	-1   0    0    1   
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 68712384
+P 8900 2800
+F 0 "scmode1" H 8900 2950 98  0000 C CNB
+F 1 "SKY130mode" H 8900 2700 118 0000 C CNB
+F 2 "" H 8900 2950 60  0001 C CNN
+F 3 "" H 8900 2950 60  0001 C CNN
+	1    8900 2800
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74LS548/MUX_21.cir b/library/SubcircuitLibrary/SN74LS548/MUX_21.cir
new file mode 100644
index 000000000..7c308d4a4
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/MUX_21.cir
@@ -0,0 +1,15 @@
+* H:\esim\eSim\library\SubcircuitLibrary\MUX_21\MUX_21.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 07/16/25 20:44:44
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__nfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC2-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_SC1-Pad1_ PORT		
+scmode1  SKY130mode		
+X1  Net-_SC1-Pad2_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_SC2-Pad2_ CMOS_INVTR		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/MUX_21.cir.out b/library/SubcircuitLibrary/SN74LS548/MUX_21.cir.out
new file mode 100644
index 000000000..7eff53e07
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/MUX_21.cir.out
@@ -0,0 +1,18 @@
+* h:\esim\esim\library\subcircuitlibrary\mux_21\mux_21.cir
+
+.include CMOS_INVTR.sub
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_sc1-pad1_ port
+* s c m o d e
+x1 net-_sc1-pad2_ net-_u1-pad4_ net-_u1-pad5_ net-_sc2-pad2_ CMOS_INVTR
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/MUX_21.pro b/library/SubcircuitLibrary/SN74LS548/MUX_21.pro
new file mode 100644
index 000000000..95be4d314
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/MUX_21.pro
@@ -0,0 +1,74 @@
+update=07/16/25 20:43:20
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=MUX_21-rescue
+LibName2=adc-dac
+LibName3=memory
+LibName4=xilinx
+LibName5=microcontrollers
+LibName6=dsp
+LibName7=microchip
+LibName8=analog_switches
+LibName9=motorola
+LibName10=texas
+LibName11=intel
+LibName12=audio
+LibName13=interface
+LibName14=digital-audio
+LibName15=philips
+LibName16=display
+LibName17=cypress
+LibName18=siliconi
+LibName19=opto
+LibName20=atmel
+LibName21=contrib
+LibName22=power
+LibName23=eSim_Plot
+LibName24=transistors
+LibName25=conn
+LibName26=eSim_User
+LibName27=regul
+LibName28=74xx
+LibName29=cmos4000
+LibName30=eSim_Analog
+LibName31=eSim_Devices
+LibName32=eSim_Digital
+LibName33=eSim_Hybrid
+LibName34=eSim_Miscellaneous
+LibName35=eSim_Power
+LibName36=eSim_Sources
+LibName37=eSim_Subckt
+LibName38=eSim_Nghdl
+LibName39=eSim_Ngveri
+LibName40=eSim_SKY130
+LibName41=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74LS548/MUX_21.sch b/library/SubcircuitLibrary/SN74LS548/MUX_21.sch
new file mode 100644
index 000000000..31974c758
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/MUX_21.sch
@@ -0,0 +1,198 @@
+EESchema Schematic File Version 2
+LIBS:MUX_21-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:MUX_21-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__nfet_01v8 SC1
+U 1 1 68711FE2
+P 4700 2000
+F 0 "SC1" H 4750 2300 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5000 2087 50  0000 R CNN
+F 2 "" H 4700 500 50  0001 C CNN
+F 3 "" H 4700 2000 50  0001 C CNN
+	1    4700 2000
+	0    1    1    0   
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 68712114
+P 6200 2300
+F 0 "SC2" H 6250 2600 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6500 2387 50  0000 R CNN
+F 2 "" H 6200 800 50  0001 C CNN
+F 3 "" H 6200 2300 50  0001 C CNN
+	1    6200 2300
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	4250 1650 5250 1650
+Wire Wire Line
+	4700 1700 4700 1650
+Connection ~ 4700 1650
+Wire Wire Line
+	4400 2200 4250 2200
+Wire Wire Line
+	4700 2100 4700 2250
+Wire Wire Line
+	4700 2250 4350 2250
+Wire Wire Line
+	4350 2250 4350 2200
+Connection ~ 4350 2200
+Wire Wire Line
+	6200 1650 6200 2000
+Wire Wire Line
+	5900 2500 4250 2500
+Wire Wire Line
+	6200 2400 6200 2550
+Wire Wire Line
+	6200 2550 5800 2550
+Wire Wire Line
+	5800 2550 5800 2500
+Connection ~ 5800 2500
+Wire Wire Line
+	5000 2200 6850 2200
+Wire Wire Line
+	6500 2200 6500 2500
+Connection ~ 6500 2200
+$Comp
+L PORT U1
+U 1 1 687121FA
+P 4000 1650
+F 0 "U1" H 4050 1750 30  0000 C CNN
+F 1 "PORT" H 4000 1650 30  0000 C CNN
+F 2 "" H 4000 1650 60  0000 C CNN
+F 3 "" H 4000 1650 60  0000 C CNN
+	1    4000 1650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68712241
+P 4000 2200
+F 0 "U1" H 4050 2300 30  0000 C CNN
+F 1 "PORT" H 4000 2200 30  0000 C CNN
+F 2 "" H 4000 2200 60  0000 C CNN
+F 3 "" H 4000 2200 60  0000 C CNN
+	2    4000 2200
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 6871226C
+P 4000 2500
+F 0 "U1" H 4050 2600 30  0000 C CNN
+F 1 "PORT" H 4000 2500 30  0000 C CNN
+F 2 "" H 4000 2500 60  0000 C CNN
+F 3 "" H 4000 2500 60  0000 C CNN
+	3    4000 2500
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68712295
+P 5000 1550
+F 0 "U1" H 5050 1650 30  0000 C CNN
+F 1 "PORT" H 5000 1550 30  0000 C CNN
+F 2 "" H 5000 1550 60  0000 C CNN
+F 3 "" H 5000 1550 60  0000 C CNN
+	4    5000 1550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 687122E8
+P 5000 1750
+F 0 "U1" H 5050 1850 30  0000 C CNN
+F 1 "PORT" H 5000 1750 30  0000 C CNN
+F 2 "" H 5000 1750 60  0000 C CNN
+F 3 "" H 5000 1750 60  0000 C CNN
+	5    5000 1750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 68712317
+P 7100 2200
+F 0 "U1" H 7150 2300 30  0000 C CNN
+F 1 "PORT" H 7100 2200 30  0000 C CNN
+F 2 "" H 7100 2200 60  0000 C CNN
+F 3 "" H 7100 2200 60  0000 C CNN
+	6    7100 2200
+	-1   0    0    1   
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 68712384
+P 8900 2800
+F 0 "scmode1" H 8900 2950 98  0000 C CNB
+F 1 "SKY130mode" H 8900 2700 118 0000 C CNB
+F 2 "" H 8900 2950 60  0001 C CNN
+F 3 "" H 8900 2950 60  0001 C CNN
+	1    8900 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L CMOS_INVTR X1
+U 1 1 6877C242
+P 5700 1650
+F 0 "X1" H 5700 1650 60  0000 C CNN
+F 1 "CMOS_INVTR" H 5650 1450 60  0000 C CNN
+F 2 "" H 5700 1650 60  0001 C CNN
+F 3 "" H 5700 1650 60  0001 C CNN
+	1    5700 1650
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74LS548/MUX_21.sub b/library/SubcircuitLibrary/SN74LS548/MUX_21.sub
new file mode 100644
index 000000000..bba590027
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/MUX_21.sub
@@ -0,0 +1,12 @@
+* Subcircuit MUX_21
+.subckt MUX_21 net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_sc1-pad1_ 
+* h:\esim\esim\library\subcircuitlibrary\mux_21\mux_21.cir
+.include CMOS_INVTR.sub
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+x1 net-_sc1-pad2_ net-_u1-pad4_ net-_u1-pad5_ net-_sc2-pad2_ CMOS_INVTR
+* Control Statements
+
+.ends MUX_21
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/MUX_21_Previous_Values.xml b/library/SubcircuitLibrary/SN74LS548/MUX_21_Previous_Values.xml
new file mode 100644
index 000000000..1f3ca4497
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/MUX_21_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=1 l=0.15</field></sc1><sc2><field>w=1 l=0.15</field></sc2></devicemodel><subcircuit><x1><field>H:\esim\eSim\library\SubcircuitLibrary\CMOS_INVTR</field></x1></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/Rnk_Blk-cache.lib b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk-cache.lib
new file mode 100644
index 000000000..a31ec5ac2
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk-cache.lib
@@ -0,0 +1,109 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# DFF_CE
+#
+DEF DFF_CE X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "DFF_CE" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -400 150 300 -150 0 1 0 N
+X CLK 1 -600 -100 200 R 50 50 1 1 I
+X CLK_EN 2 -600 0 200 R 50 50 1 1 I
+X D 3 -600 100 200 R 50 50 1 1 I
+X VDD 4 500 100 200 L 50 50 1 1 I
+X GND 5 500 -100 200 L 50 50 1 1 I
+X OUT 6 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# MUX_21
+#
+DEF MUX_21 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "MUX_21" 200 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+P 5 0 1 0 -250 200 -250 -200 200 -100 200 100 -250 200 N
+X S 1 0 -350 200 U 50 50 1 1 O
+X B 2 -450 -50 200 R 50 50 1 1 I
+X A 3 -450 50 200 R 50 50 1 1 I
+X VDD 4 -450 150 200 R 50 50 1 1 I
+X GND 5 -450 -150 200 R 50 50 1 1 I
+X Y 6 400 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# tri_state
+#
+DEF tri_state X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "tri_state" 150 -150 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+P 4 0 1 0 -250 150 350 0 -250 -150 -250 150 N
+X IN 1 -450 0 200 R 50 50 1 1 I
+X VDD 2 -450 100 200 R 50 50 1 1 I
+X GND 3 -450 -100 200 R 50 50 1 1 I
+X EN 4 0 300 200 D 50 50 1 1 I I
+X OUT 5 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74LS548/Rnk_Blk-rescue.lib b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk-rescue.lib
new file mode 100644
index 000000000..4fbf03adc
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk-rescue.lib
@@ -0,0 +1,23 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# tri_state-RESCUE-Rnk_Blk
+#
+DEF tri_state-RESCUE-Rnk_Blk X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "tri_state-RESCUE-Rnk_Blk" 50 -200 60 H V C CNN
+F2 "" 1450 -500 60 H I C CNN
+F3 "" 1450 -500 60 H I C CNN
+DRAW
+C -50 150 50 0 1 0 N
+P 2 0 1 0 -250 150 250 0 N
+P 3 0 1 0 -250 150 -250 -150 250 0 N
+X in 1 -450 0 200 R 50 50 1 1 I
+X Vdd 2 -450 100 200 R 50 50 1 1 I
+X Gnd 3 -450 -100 200 R 50 50 1 1 I
+X En 4 -50 400 200 D 50 50 1 1 I
+X out 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.bak b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.bak
new file mode 100644
index 000000000..ba355107f
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.bak
@@ -0,0 +1,319 @@
+EESchema Schematic File Version 2
+LIBS:Rnk_Blk-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:Rnk_Blk-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 4350 2350
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+	7750 2550 7750 2400
+Wire Wire Line
+	6900 2450 6900 2550
+Connection ~ 6900 2550
+Connection ~ 6650 2550
+Wire Wire Line
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+Connection ~ 4500 2550
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 6900 1950
+Connection ~ 6650 1950
+Wire Wire Line
+	4500 2150 4500 1950
+Connection ~ 4500 1950
+$Comp
+L PORT U1
+U 1 1 68712BF8
+P 2950 2050
+F 0 "U1" H 3000 2150 30  0000 C CNN
+F 1 "PORT" H 2950 2050 30  0000 C CNN
+F 2 "" H 2950 2050 60  0000 C CNN
+F 3 "" H 2950 2050 60  0000 C CNN
+	1    2950 2050
+	1    0    0    -1  
+$EndComp
+Connection ~ 3200 2050
+Connection ~ 3200 2600
+$Comp
+L PORT U1
+U 2 1 68712D01
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+F 0 "U1" H 2950 2450 30  0000 C CNN
+F 1 "PORT" H 2900 2350 30  0000 C CNN
+F 2 "" H 2900 2350 60  0000 C CNN
+F 3 "" H 2900 2350 60  0000 C CNN
+	2    2900 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68712D4B
+P 2950 2600
+F 0 "U1" H 3000 2700 30  0000 C CNN
+F 1 "PORT" H 2950 2600 30  0000 C CNN
+F 2 "" H 2950 2600 60  0000 C CNN
+F 3 "" H 2950 2600 60  0000 C CNN
+	3    2950 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68712D90
+P 4500 1700
+F 0 "U1" H 4550 1800 30  0000 C CNN
+F 1 "PORT" H 4500 1700 30  0000 C CNN
+F 2 "" H 4500 1700 60  0000 C CNN
+F 3 "" H 4500 1700 60  0000 C CNN
+	4    4500 1700
+	0    1    1    0   
+$EndComp
+$Comp
+L PORT U1
+U 5 1 68712DD7
+P 4500 2800
+F 0 "U1" H 4550 2900 30  0000 C CNN
+F 1 "PORT" H 4500 2800 30  0000 C CNN
+F 2 "" H 4500 2800 60  0000 C CNN
+F 3 "" H 4500 2800 60  0000 C CNN
+	5    4500 2800
+	0    -1   -1   0   
+$EndComp
+$Comp
+L PORT U1
+U 6 1 68712F5A
+P 4950 2900
+F 0 "U1" H 5000 3000 30  0000 C CNN
+F 1 "PORT" H 4950 2900 30  0000 C CNN
+F 2 "" H 4950 2900 60  0000 C CNN
+F 3 "" H 4950 2900 60  0000 C CNN
+	6    4950 2900
+	0    -1   -1   0   
+$EndComp
+$Comp
+L PORT U1
+U 7 1 68713016
+P 5350 2350
+F 0 "U1" H 5400 2450 30  0000 C CNN
+F 1 "PORT" H 5350 2350 30  0000 C CNN
+F 2 "" H 5350 2350 60  0000 C CNN
+F 3 "" H 5350 2350 60  0000 C CNN
+	7    5350 2350
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 8 1 687130AE
+P 7100 2650
+F 0 "U1" H 7150 2750 30  0000 C CNN
+F 1 "PORT" H 7100 2650 30  0000 C CNN
+F 2 "" H 7100 2650 60  0000 C CNN
+F 3 "" H 7100 2650 60  0000 C CNN
+	8    7100 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 68713163
+P 8400 1900
+F 0 "U1" H 8450 2000 30  0000 C CNN
+F 1 "PORT" H 8400 1900 30  0000 C CNN
+F 2 "" H 8400 1900 60  0000 C CNN
+F 3 "" H 8400 1900 60  0000 C CNN
+	9    8400 1900
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 6871323C
+P 9000 2300
+F 0 "U1" H 9050 2400 30  0000 C CNN
+F 1 "PORT" H 9000 2300 30  0000 C CNN
+F 2 "" H 9000 2300 60  0000 C CNN
+F 3 "" H 9000 2300 60  0000 C CNN
+	10   9000 2300
+	-1   0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 6871331A
+P 9150 3800
+F 0 "scmode1" H 9150 3950 98  0000 C CNB
+F 1 "SKY130mode" H 9150 3700 118 0000 C CNB
+F 2 "" H 9150 3950 60  0001 C CNN
+F 3 "" H 9150 3950 60  0001 C CNN
+	1    9150 3800
+	1    0    0    -1  
+$EndComp
+$Comp
+L DFF_CE X1
+U 1 1 6877CD0C
+P 3750 2350
+F 0 "X1" H 3750 2350 60  0000 C CNN
+F 1 "DFF_CE" H 3750 2150 60  0000 C CNN
+F 2 "" H 3750 2350 60  0001 C CNN
+F 3 "" H 3750 2350 60  0001 C CNN
+	1    3750 2350
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3200 2050 3200 2150
+Wire Wire Line
+	3200 2150 3150 2150
+Wire Wire Line
+	3150 2150 3150 2250
+Wire Wire Line
+	3200 2600 3200 2500
+Wire Wire Line
+	3200 2500 3150 2500
+Wire Wire Line
+	3150 2500 3150 2450
+$Comp
+L MUX_21 X2
+U 1 1 6877CE6E
+P 4950 2300
+F 0 "X2" H 4950 2300 60  0000 C CNN
+F 1 "MUX_21" H 5150 2100 60  0000 C CNN
+F 2 "" H 4950 2300 60  0001 C CNN
+F 3 "" H 4950 2300 60  0001 C CNN
+	1    4950 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L DFF_CE X3
+U 1 1 6877CF81
+P 6200 2350
+F 0 "X3" H 6200 2350 60  0000 C CNN
+F 1 "DFF_CE" H 6200 2150 60  0000 C CNN
+F 2 "" H 6200 2350 60  0001 C CNN
+F 3 "" H 6200 2350 60  0001 C CNN
+	1    6200 2350
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6650 1950 6650 2150
+Wire Wire Line
+	6650 2150 6700 2150
+Wire Wire Line
+	6700 2150 6700 2250
+Wire Wire Line
+	6700 2350 6900 2350
+Wire Wire Line
+	6700 2450 6700 2500
+Wire Wire Line
+	6700 2500 6650 2500
+Wire Wire Line
+	6650 2500 6650 2550
+$Comp
+L MUX_21 X4
+U 1 1 6877D0DB
+P 7350 2300
+F 0 "X4" H 7350 2300 60  0000 C CNN
+F 1 "MUX_21" H 7550 2100 60  0000 C CNN
+F 2 "" H 7350 2300 60  0001 C CNN
+F 3 "" H 7350 2300 60  0001 C CNN
+	1    7350 2300
+	1    0    0    -1  
+$EndComp
+$Comp
+L tri_state X5
+U 1 1 6877D186
+P 8200 2300
+F 0 "X5" H 8300 2300 60  0000 C CNN
+F 1 "tri_state" H 8350 2150 60  0000 C CNN
+F 2 "" H 8200 2300 60  0001 C CNN
+F 3 "" H 8200 2300 60  0001 C CNN
+	1    8200 2300
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	8150 1900 8150 2000
+Wire Wire Line
+	8150 2000 8200 2000
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.cir b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.cir
new file mode 100644
index 000000000..2b3dc307a
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.cir
@@ -0,0 +1,17 @@
+* H:\esim\eSim\library\SubcircuitLibrary\Rnk_Blk\Rnk_Blk.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 07/17/25 16:26:27
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad9_ Net-_U1-Pad10_ PORT		
+scmode1  SKY130mode		
+X1  Net-_U1-Pad3_ Net-_U1-Pad2_ Net-_U1-Pad1_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_X1-Pad6_ DFF_CE		
+X2  Net-_U1-Pad6_ Net-_X1-Pad6_ Net-_U1-Pad1_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_X2-Pad6_ MUX_21		
+X3  Net-_U1-Pad3_ Net-_U1-Pad7_ Net-_X2-Pad6_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_X3-Pad6_ DFF_CE		
+X4  Net-_U1-Pad8_ Net-_X3-Pad6_ Net-_X1-Pad6_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_X4-Pad6_ MUX_21		
+X5  Net-_X4-Pad6_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad9_ Net-_U1-Pad10_ tri_state		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.cir.out b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.cir.out
new file mode 100644
index 000000000..34c92dedd
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.cir.out
@@ -0,0 +1,22 @@
+* h:\esim\esim\library\subcircuitlibrary\rnk_blk\rnk_blk.cir
+
+.include MUX_21.sub
+.include DFF_CE.sub
+.include tri_state.sub
+
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ port
+* s c m o d e
+x1 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad1_ net-_u1-pad4_ net-_u1-pad5_ net-_x1-pad6_ DFF_CE
+x2 net-_u1-pad6_ net-_x1-pad6_ net-_u1-pad1_ net-_u1-pad4_ net-_u1-pad5_ net-_x2-pad6_ MUX_21
+x3 net-_u1-pad3_ net-_u1-pad7_ net-_x2-pad6_ net-_u1-pad4_ net-_u1-pad5_ net-_x3-pad6_ DFF_CE
+x4 net-_u1-pad8_ net-_x3-pad6_ net-_x1-pad6_ net-_u1-pad4_ net-_u1-pad5_ net-_x4-pad6_ MUX_21
+x5 net-_x4-pad6_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad9_ net-_u1-pad10_ tri_state
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.pro b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.pro
new file mode 100644
index 000000000..24526b126
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.pro
@@ -0,0 +1,74 @@
+update=07/16/25 21:27:45
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=Rnk_Blk-rescue
+LibName2=adc-dac
+LibName3=memory
+LibName4=xilinx
+LibName5=microcontrollers
+LibName6=dsp
+LibName7=microchip
+LibName8=analog_switches
+LibName9=motorola
+LibName10=texas
+LibName11=intel
+LibName12=audio
+LibName13=interface
+LibName14=digital-audio
+LibName15=philips
+LibName16=display
+LibName17=cypress
+LibName18=siliconi
+LibName19=opto
+LibName20=atmel
+LibName21=contrib
+LibName22=power
+LibName23=eSim_Plot
+LibName24=transistors
+LibName25=conn
+LibName26=eSim_User
+LibName27=regul
+LibName28=74xx
+LibName29=cmos4000
+LibName30=eSim_Analog
+LibName31=eSim_Devices
+LibName32=eSim_Digital
+LibName33=eSim_Hybrid
+LibName34=eSim_Miscellaneous
+LibName35=eSim_Power
+LibName36=eSim_Sources
+LibName37=eSim_Subckt
+LibName38=eSim_Nghdl
+LibName39=eSim_Ngveri
+LibName40=eSim_SKY130
+LibName41=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.sch b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.sch
new file mode 100644
index 000000000..ba355107f
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.sch
@@ -0,0 +1,319 @@
+EESchema Schematic File Version 2
+LIBS:Rnk_Blk-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:Rnk_Blk-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+Wire Wire Line
+	4250 2350 4500 2350
+Wire Wire Line
+	3200 2050 4400 2050
+Wire Wire Line
+	4400 2050 4400 2250
+Wire Wire Line
+	4400 2250 4500 2250
+Wire Wire Line
+	5350 2300 5450 2300
+Wire Wire Line
+	5450 2300 5450 2250
+Wire Wire Line
+	5450 2250 5600 2250
+Wire Wire Line
+	6900 2250 6800 2250
+Wire Wire Line
+	6800 2250 6800 2000
+Wire Wire Line
+	6800 2000 4350 2000
+Wire Wire Line
+	4350 2000 4350 2350
+Connection ~ 4350 2350
+Wire Wire Line
+	4250 2450 4250 2550
+Wire Wire Line
+	4250 2550 7750 2550
+Wire Wire Line
+	7750 2550 7750 2400
+Wire Wire Line
+	6900 2450 6900 2550
+Connection ~ 6900 2550
+Connection ~ 6650 2550
+Wire Wire Line
+	4500 2450 4500 2550
+Connection ~ 4500 2550
+Wire Wire Line
+	5600 2450 5600 2600
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+	7750 1950 7750 2200
+Wire Wire Line
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+Connection ~ 6900 1950
+Connection ~ 6650 1950
+Wire Wire Line
+	4500 2150 4500 1950
+Connection ~ 4500 1950
+$Comp
+L PORT U1
+U 1 1 68712BF8
+P 2950 2050
+F 0 "U1" H 3000 2150 30  0000 C CNN
+F 1 "PORT" H 2950 2050 30  0000 C CNN
+F 2 "" H 2950 2050 60  0000 C CNN
+F 3 "" H 2950 2050 60  0000 C CNN
+	1    2950 2050
+	1    0    0    -1  
+$EndComp
+Connection ~ 3200 2050
+Connection ~ 3200 2600
+$Comp
+L PORT U1
+U 2 1 68712D01
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+F 0 "U1" H 2950 2450 30  0000 C CNN
+F 1 "PORT" H 2900 2350 30  0000 C CNN
+F 2 "" H 2900 2350 60  0000 C CNN
+F 3 "" H 2900 2350 60  0000 C CNN
+	2    2900 2350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68712D4B
+P 2950 2600
+F 0 "U1" H 3000 2700 30  0000 C CNN
+F 1 "PORT" H 2950 2600 30  0000 C CNN
+F 2 "" H 2950 2600 60  0000 C CNN
+F 3 "" H 2950 2600 60  0000 C CNN
+	3    2950 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68712D90
+P 4500 1700
+F 0 "U1" H 4550 1800 30  0000 C CNN
+F 1 "PORT" H 4500 1700 30  0000 C CNN
+F 2 "" H 4500 1700 60  0000 C CNN
+F 3 "" H 4500 1700 60  0000 C CNN
+	4    4500 1700
+	0    1    1    0   
+$EndComp
+$Comp
+L PORT U1
+U 5 1 68712DD7
+P 4500 2800
+F 0 "U1" H 4550 2900 30  0000 C CNN
+F 1 "PORT" H 4500 2800 30  0000 C CNN
+F 2 "" H 4500 2800 60  0000 C CNN
+F 3 "" H 4500 2800 60  0000 C CNN
+	5    4500 2800
+	0    -1   -1   0   
+$EndComp
+$Comp
+L PORT U1
+U 6 1 68712F5A
+P 4950 2900
+F 0 "U1" H 5000 3000 30  0000 C CNN
+F 1 "PORT" H 4950 2900 30  0000 C CNN
+F 2 "" H 4950 2900 60  0000 C CNN
+F 3 "" H 4950 2900 60  0000 C CNN
+	6    4950 2900
+	0    -1   -1   0   
+$EndComp
+$Comp
+L PORT U1
+U 7 1 68713016
+P 5350 2350
+F 0 "U1" H 5400 2450 30  0000 C CNN
+F 1 "PORT" H 5350 2350 30  0000 C CNN
+F 2 "" H 5350 2350 60  0000 C CNN
+F 3 "" H 5350 2350 60  0000 C CNN
+	7    5350 2350
+	1    0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 8 1 687130AE
+P 7100 2650
+F 0 "U1" H 7150 2750 30  0000 C CNN
+F 1 "PORT" H 7100 2650 30  0000 C CNN
+F 2 "" H 7100 2650 60  0000 C CNN
+F 3 "" H 7100 2650 60  0000 C CNN
+	8    7100 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 68713163
+P 8400 1900
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+F 2 "" H 8400 1900 60  0000 C CNN
+F 3 "" H 8400 1900 60  0000 C CNN
+	9    8400 1900
+	-1   0    0    -1  
+$EndComp
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+F 3 "" H 9000 2300 60  0000 C CNN
+	10   9000 2300
+	-1   0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 9150 3950 60  0001 C CNN
+F 3 "" H 9150 3950 60  0001 C CNN
+	1    9150 3800
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+$EndComp
+$Comp
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+F 3 "" H 3750 2350 60  0001 C CNN
+	1    3750 2350
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diff --git a/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.sub b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.sub
new file mode 100644
index 000000000..0ba174c5b
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk.sub
@@ -0,0 +1,16 @@
+* Subcircuit Rnk_Blk
+.subckt Rnk_Blk net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ 
+* h:\esim\esim\library\subcircuitlibrary\rnk_blk\rnk_blk.cir
+.include MUX_21.sub
+.include DFF_CE.sub
+.include tri_state.sub
+
+* s c m o d e
+x1 net-_u1-pad3_ net-_u1-pad2_ net-_u1-pad1_ net-_u1-pad4_ net-_u1-pad5_ net-_x1-pad6_ DFF_CE
+x2 net-_u1-pad6_ net-_x1-pad6_ net-_u1-pad1_ net-_u1-pad4_ net-_u1-pad5_ net-_x2-pad6_ MUX_21
+x3 net-_u1-pad3_ net-_u1-pad7_ net-_x2-pad6_ net-_u1-pad4_ net-_u1-pad5_ net-_x3-pad6_ DFF_CE
+x4 net-_u1-pad8_ net-_x3-pad6_ net-_x1-pad6_ net-_u1-pad4_ net-_u1-pad5_ net-_x4-pad6_ MUX_21
+x5 net-_x4-pad6_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad9_ net-_u1-pad10_ tri_state
+* Control Statements
+
+.ends Rnk_Blk
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/Rnk_Blk_Previous_Values.xml b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk_Previous_Values.xml
new file mode 100644
index 000000000..b337a3d34
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/Rnk_Blk_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>H:\esim\eSim\library\SubcircuitLibrary\DFF_CE</field></x1><x2><field>H:\esim\eSim\library\SubcircuitLibrary\MUX_21</field></x2><x3><field>H:\esim\eSim\library\SubcircuitLibrary\DFF_CE</field></x3><x4><field>H:\esim\eSim\library\SubcircuitLibrary\MUX_21</field></x4><x5><field>H:\esim\eSim\library\SubcircuitLibrary\tri_state</field></x5></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/SN74LS548-cache.lib b/library/SubcircuitLibrary/SN74LS548/SN74LS548-cache.lib
new file mode 100644
index 000000000..cbbbe5d45
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/SN74LS548-cache.lib
@@ -0,0 +1,78 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# Rnk_Blk
+#
+DEF Rnk_Blk X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "Rnk_Blk" 0 -300 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 250 350 -250 0 1 0 N
+X D_In 1 -500 100 200 R 50 50 1 1 I
+X CKE1 2 -500 0 200 R 50 50 1 1 I I
+X CLK 3 -500 -100 200 R 50 50 1 1 I C
+X VDD 4 -500 200 200 R 50 50 1 1 I
+X GND 5 550 -200 200 L 50 50 1 1 I
+X INSEL 6 -500 -200 200 R 50 50 1 1 I
+X CKE2 7 550 0 200 L 50 50 1 1 I I
+X OUTSEL 8 550 100 200 L 50 50 1 1 I
+X OE 9 550 200 200 L 50 50 1 1 I I
+X OUT 10 550 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74LS548/SN74LS548-rescue.lib b/library/SubcircuitLibrary/SN74LS548/SN74LS548-rescue.lib
new file mode 100644
index 000000000..8bf544d48
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/SN74LS548-rescue.lib
@@ -0,0 +1,26 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# Rnk_Blk-RESCUE-SN74LS548
+#
+DEF Rnk_Blk-RESCUE-SN74LS548 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "Rnk_Blk-RESCUE-SN74LS548" 0 -300 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -400 250 400 -250 0 1 0 N
+X D_in 1 -600 100 200 R 50 50 1 1 I
+X CKE1 2 -600 0 200 R 50 50 1 1 I I
+X Clk 3 -600 -100 200 R 50 50 1 1 I C
+X Vdd 4 -600 200 200 R 50 50 1 1 I
+X Gnd 5 600 -200 200 L 50 50 1 1 I
+X INSEL 6 -600 -200 200 R 50 50 1 1 I
+X CKE2 7 600 0 200 L 50 50 1 1 I I
+X OUTSEL 8 600 100 200 L 50 50 1 1 I
+X OE 9 600 200 200 L 50 50 1 1 I I
+X Y_out 10 600 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74LS548/SN74LS548.bak b/library/SubcircuitLibrary/SN74LS548/SN74LS548.bak
new file mode 100644
index 000000000..80ed428cb
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/SN74LS548.bak
@@ -0,0 +1,685 @@
+EESchema Schematic File Version 2
+LIBS:SN74LS548-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SN74LS548-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
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+F 3 "" H 6200 7400 60  0001 C CNN
+	1    6200 7250
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+	1    1900 2750
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+F 3 "" H 10450 3350 60  0000 C CNN
+	24   10450 3350
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+	5    2550 2850
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+F 3 "" H 6250 2850 60  0000 C CNN
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+F 1 "PORT" H 10300 4100 30  0000 C CNN
+F 2 "" H 10300 4100 60  0000 C CNN
+F 3 "" H 10300 4100 60  0000 C CNN
+	21   10300 4100
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+L PORT U1
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+F 1 "PORT" H 4250 3050 30  0000 C CNN
+F 2 "" H 4250 3050 60  0000 C CNN
+F 3 "" H 4250 3050 60  0000 C CNN
+	7    4250 3050
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+$Comp
+L PORT U1
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+F 3 "" H 6100 3050 60  0000 C CNN
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+$Comp
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+F 3 "" H 7950 3050 60  0000 C CNN
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+$EndComp
+$Comp
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+F 2 "" H 9700 3050 60  0000 C CNN
+F 3 "" H 9700 3050 60  0000 C CNN
+	19   9700 3050
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+$Comp
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+F 1 "PORT" H 9700 4800 30  0000 C CNN
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+F 3 "" H 9700 4800 60  0000 C CNN
+	20   9700 4800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
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+F 1 "PORT" H 7950 4800 30  0000 C CNN
+F 2 "" H 7950 4800 60  0000 C CNN
+F 3 "" H 7950 4800 60  0000 C CNN
+	16   7950 4800
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+$EndComp
+$Comp
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+F 1 "PORT" H 6100 4800 30  0000 C CNN
+F 2 "" H 6100 4800 60  0000 C CNN
+F 3 "" H 6100 4800 60  0000 C CNN
+	12   6100 4800
+	-1   0    0    -1  
+$EndComp
+$Comp
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+F 0 "U1" H 4300 4900 30  0000 C CNN
+F 1 "PORT" H 4250 4800 30  0000 C CNN
+F 2 "" H 4250 4800 60  0000 C CNN
+F 3 "" H 4250 4800 60  0000 C CNN
+	8    4250 4800
+	-1   0    0    -1  
+$EndComp
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+U 1 1 6878DC64
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+F 1 "Rnk_Blk" H 3300 2650 60  0000 C CNN
+F 2 "" H 3300 2950 60  0001 C CNN
+F 3 "" H 3300 2950 60  0001 C CNN
+	1    3300 2950
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3850 3050 4000 3050
+Wire Wire Line
+	3850 3150 4000 3150
+$Comp
+L Rnk_Blk X3
+U 1 1 6878E1D0
+P 5150 2950
+F 0 "X3" H 5150 2950 60  0000 C CNN
+F 1 "Rnk_Blk" H 5150 2650 60  0000 C CNN
+F 2 "" H 5150 2950 60  0001 C CNN
+F 3 "" H 5150 2950 60  0001 C CNN
+	1    5150 2950
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5850 3050 5700 3050
+Wire Wire Line
+	5850 3150 5700 3150
+$Comp
+L Rnk_Blk X5
+U 1 1 6878E69D
+P 7000 2950
+F 0 "X5" H 7000 2950 60  0000 C CNN
+F 1 "Rnk_Blk" H 7000 2650 60  0000 C CNN
+F 2 "" H 7000 2950 60  0001 C CNN
+F 3 "" H 7000 2950 60  0001 C CNN
+	1    7000 2950
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	7700 3050 7550 3050
+Wire Wire Line
+	7550 3150 7700 3150
+$Comp
+L Rnk_Blk X7
+U 1 1 6878EB72
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+F 1 "Rnk_Blk" H 8750 2650 60  0000 C CNN
+F 2 "" H 8750 2950 60  0001 C CNN
+F 3 "" H 8750 2950 60  0001 C CNN
+	1    8750 2950
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	9450 3050 9300 3050
+$Comp
+L Rnk_Blk X2
+U 1 1 6878F17E
+P 3300 4700
+F 0 "X2" H 3300 4700 60  0000 C CNN
+F 1 "Rnk_Blk" H 3300 4400 60  0000 C CNN
+F 2 "" H 3300 4700 60  0001 C CNN
+F 3 "" H 3300 4700 60  0001 C CNN
+	1    3300 4700
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4000 4800 3850 4800
+Wire Wire Line
+	4000 4900 3850 4900
+$Comp
+L Rnk_Blk X4
+U 1 1 6878F665
+P 5150 4700
+F 0 "X4" H 5150 4700 60  0000 C CNN
+F 1 "Rnk_Blk" H 5150 4400 60  0000 C CNN
+F 2 "" H 5150 4700 60  0001 C CNN
+F 3 "" H 5150 4700 60  0001 C CNN
+	1    5150 4700
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5850 4800 5700 4800
+Wire Wire Line
+	5850 4900 5700 4900
+$Comp
+L Rnk_Blk X6
+U 1 1 6878FB38
+P 7000 4700
+F 0 "X6" H 7000 4700 60  0000 C CNN
+F 1 "Rnk_Blk" H 7000 4400 60  0000 C CNN
+F 2 "" H 7000 4700 60  0001 C CNN
+F 3 "" H 7000 4700 60  0001 C CNN
+	1    7000 4700
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
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+Wire Wire Line
+	7700 4900 7550 4900
+$Comp
+L Rnk_Blk X8
+U 1 1 6878FFD1
+P 8750 4700
+F 0 "X8" H 8750 4700 60  0000 C CNN
+F 1 "Rnk_Blk" H 8750 4400 60  0000 C CNN
+F 2 "" H 8750 4700 60  0001 C CNN
+F 3 "" H 8750 4700 60  0001 C CNN
+	1    8750 4700
+	1    0    0    -1  
+$EndComp
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diff --git a/library/SubcircuitLibrary/SN74LS548/SN74LS548.cir b/library/SubcircuitLibrary/SN74LS548/SN74LS548.cir
new file mode 100644
index 000000000..90427dc2c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/SN74LS548.cir
@@ -0,0 +1,20 @@
+* H:\esim\eSim\library\SubcircuitLibrary\SN74LS548\SN74LS548.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 07/17/25 16:46:39
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ Net-_U1-Pad8_ Net-_U1-Pad9_ Net-_U1-Pad10_ Net-_U1-Pad11_ Net-_U1-Pad12_ Net-_U1-Pad13_ Net-_U1-Pad14_ Net-_U1-Pad15_ Net-_U1-Pad16_ Net-_U1-Pad17_ Net-_U1-Pad18_ Net-_U1-Pad19_ Net-_U1-Pad20_ Net-_U1-Pad21_ Net-_U1-Pad22_ Net-_U1-Pad23_ Net-_U1-Pad24_ PORT		
+X1  Net-_U1-Pad5_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad1_ Net-_U1-Pad24_ Net-_U1-Pad4_ Net-_U1-Pad21_ Net-_U1-Pad22_ Net-_U1-Pad23_ Net-_U1-Pad7_ Rnk_Blk		
+X3  Net-_U1-Pad9_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad1_ Net-_U1-Pad24_ Net-_U1-Pad4_ Net-_U1-Pad21_ Net-_U1-Pad22_ Net-_U1-Pad23_ Net-_U1-Pad11_ Rnk_Blk		
+X5  Net-_U1-Pad13_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad1_ Net-_U1-Pad24_ Net-_U1-Pad4_ Net-_U1-Pad21_ Net-_U1-Pad22_ Net-_U1-Pad23_ Net-_U1-Pad15_ Rnk_Blk		
+X7  Net-_U1-Pad17_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad1_ Net-_U1-Pad24_ Net-_U1-Pad4_ Net-_U1-Pad21_ Net-_U1-Pad22_ Net-_U1-Pad23_ Net-_U1-Pad19_ Rnk_Blk		
+X2  Net-_U1-Pad6_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad1_ Net-_U1-Pad24_ Net-_U1-Pad4_ Net-_U1-Pad21_ Net-_U1-Pad22_ Net-_U1-Pad23_ Net-_U1-Pad8_ Rnk_Blk		
+X4  Net-_U1-Pad10_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad1_ Net-_U1-Pad24_ Net-_U1-Pad4_ Net-_U1-Pad21_ Net-_U1-Pad22_ Net-_U1-Pad23_ Net-_U1-Pad12_ Rnk_Blk		
+X6  Net-_U1-Pad14_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad1_ Net-_U1-Pad24_ Net-_U1-Pad4_ Net-_U1-Pad21_ Net-_U1-Pad22_ Net-_U1-Pad23_ Net-_U1-Pad16_ Rnk_Blk		
+X8  Net-_U1-Pad18_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad1_ Net-_U1-Pad24_ Net-_U1-Pad4_ Net-_U1-Pad21_ Net-_U1-Pad22_ Net-_U1-Pad23_ Net-_U1-Pad20_ Rnk_Blk		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/SN74LS548.cir.out b/library/SubcircuitLibrary/SN74LS548/SN74LS548.cir.out
new file mode 100644
index 000000000..26f92dc98
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/SN74LS548.cir.out
@@ -0,0 +1,23 @@
+* h:\esim\esim\library\subcircuitlibrary\sn74ls548\sn74ls548.cir
+
+.include Rnk_Blk.sub
+
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ net-_u1-pad17_ net-_u1-pad18_ net-_u1-pad19_ net-_u1-pad20_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad24_ port
+x1 net-_u1-pad5_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad7_ Rnk_Blk
+x3 net-_u1-pad9_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad11_ Rnk_Blk
+x5 net-_u1-pad13_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad15_ Rnk_Blk
+x7 net-_u1-pad17_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad19_ Rnk_Blk
+x2 net-_u1-pad6_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad8_ Rnk_Blk
+x4 net-_u1-pad10_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad12_ Rnk_Blk
+x6 net-_u1-pad14_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad16_ Rnk_Blk
+x8 net-_u1-pad18_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad20_ Rnk_Blk
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/SN74LS548.pro b/library/SubcircuitLibrary/SN74LS548/SN74LS548.pro
new file mode 100644
index 000000000..c268182c0
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/SN74LS548.pro
@@ -0,0 +1,74 @@
+update=07/17/25 16:40:51
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=SN74LS548-rescue
+LibName2=adc-dac
+LibName3=memory
+LibName4=xilinx
+LibName5=microcontrollers
+LibName6=dsp
+LibName7=microchip
+LibName8=analog_switches
+LibName9=motorola
+LibName10=texas
+LibName11=intel
+LibName12=audio
+LibName13=interface
+LibName14=digital-audio
+LibName15=philips
+LibName16=display
+LibName17=cypress
+LibName18=siliconi
+LibName19=opto
+LibName20=atmel
+LibName21=contrib
+LibName22=power
+LibName23=eSim_Plot
+LibName24=transistors
+LibName25=conn
+LibName26=eSim_User
+LibName27=regul
+LibName28=74xx
+LibName29=cmos4000
+LibName30=eSim_Analog
+LibName31=eSim_Devices
+LibName32=eSim_Digital
+LibName33=eSim_Hybrid
+LibName34=eSim_Miscellaneous
+LibName35=eSim_Power
+LibName36=eSim_Sources
+LibName37=eSim_Subckt
+LibName38=eSim_Nghdl
+LibName39=eSim_Ngveri
+LibName40=eSim_SKY130
+LibName41=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74LS548/SN74LS548.sch b/library/SubcircuitLibrary/SN74LS548/SN74LS548.sch
new file mode 100644
index 000000000..b36e16465
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/SN74LS548.sch
@@ -0,0 +1,685 @@
+EESchema Schematic File Version 2
+LIBS:SN74LS548-rescue
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:SN74LS548-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L SKY130mode scmode1
+U 1 1 68713AEF
+P 9000 3850
+F 0 "scmode1" H 9000 4000 98  0000 C CNB
+F 1 "SKY130mode" H 9000 3750 118 0000 C CNB
+F 2 "" H 9000 4000 60  0001 C CNN
+F 3 "" H 9000 4000 60  0001 C CNN
+	1    9000 3850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 6871413B
+P 1900 2750
+F 0 "U1" H 1950 2850 30  0000 C CNN
+F 1 "PORT" H 1900 2750 30  0000 C CNN
+F 2 "" H 1900 2750 60  0000 C CNN
+F 3 "" H 1900 2750 60  0000 C CNN
+	1    1900 2750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 24 1 68714254
+P 10450 3350
+F 0 "U1" H 10500 3450 30  0000 C CNN
+F 1 "PORT" H 10450 3350 30  0000 C CNN
+F 2 "" H 10450 3350 60  0000 C CNN
+F 3 "" H 10450 3350 60  0000 C CNN
+	24   10450 3350
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 687142F2
+P 2550 2850
+F 0 "U1" H 2600 2950 30  0000 C CNN
+F 1 "PORT" H 2550 2850 30  0000 C CNN
+F 2 "" H 2550 2850 60  0000 C CNN
+F 3 "" H 2550 2850 60  0000 C CNN
+	5    2550 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 9 1 68714377
+P 4400 2850
+F 0 "U1" H 4450 2950 30  0000 C CNN
+F 1 "PORT" H 4400 2850 30  0000 C CNN
+F 2 "" H 4400 2850 60  0000 C CNN
+F 3 "" H 4400 2850 60  0000 C CNN
+	9    4400 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 13 1 687143B4
+P 6250 2850
+F 0 "U1" H 6300 2950 30  0000 C CNN
+F 1 "PORT" H 6250 2850 30  0000 C CNN
+F 2 "" H 6250 2850 60  0000 C CNN
+F 3 "" H 6250 2850 60  0000 C CNN
+	13   6250 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 17 1 68714411
+P 8000 2850
+F 0 "U1" H 8050 2950 30  0000 C CNN
+F 1 "PORT" H 8000 2850 30  0000 C CNN
+F 2 "" H 8000 2850 60  0000 C CNN
+F 3 "" H 8000 2850 60  0000 C CNN
+	17   8000 2850
+	1    0    0    -1  
+$EndComp
+$Comp
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+$Comp
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+$Comp
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diff --git a/library/SubcircuitLibrary/SN74LS548/SN74LS548.sub b/library/SubcircuitLibrary/SN74LS548/SN74LS548.sub
new file mode 100644
index 000000000..910a910bd
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/SN74LS548.sub
@@ -0,0 +1,17 @@
+* Subcircuit SN74LS548
+.subckt SN74LS548 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ net-_u1-pad9_ net-_u1-pad10_ net-_u1-pad11_ net-_u1-pad12_ net-_u1-pad13_ net-_u1-pad14_ net-_u1-pad15_ net-_u1-pad16_ net-_u1-pad17_ net-_u1-pad18_ net-_u1-pad19_ net-_u1-pad20_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad24_ 
+* h:\esim\esim\library\subcircuitlibrary\sn74ls548\sn74ls548.cir
+.include Rnk_Blk.sub
+
+* s c m o d e
+x1 net-_u1-pad5_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad7_ Rnk_Blk
+x3 net-_u1-pad9_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad11_ Rnk_Blk
+x5 net-_u1-pad13_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad15_ Rnk_Blk
+x7 net-_u1-pad17_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad19_ Rnk_Blk
+x2 net-_u1-pad6_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad8_ Rnk_Blk
+x4 net-_u1-pad10_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad12_ Rnk_Blk
+x6 net-_u1-pad14_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad16_ Rnk_Blk
+x8 net-_u1-pad18_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad1_ net-_u1-pad24_ net-_u1-pad4_ net-_u1-pad21_ net-_u1-pad22_ net-_u1-pad23_ net-_u1-pad20_ Rnk_Blk
+* Control Statements
+
+.ends SN74LS548
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/SN74LS548_Previous_Values.xml b/library/SubcircuitLibrary/SN74LS548/SN74LS548_Previous_Values.xml
new file mode 100644
index 000000000..d52c3ae76
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/SN74LS548_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>H:\esim\eSim\library\sky130_fd_pr\models\sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>H:\esim\eSim\library\SubcircuitLibrary\Rnk_Blk</field></x1><x3><field>H:\esim\eSim\library\SubcircuitLibrary\Rnk_Blk</field></x3><x5><field>H:\esim\eSim\library\SubcircuitLibrary\Rnk_Blk</field></x5><x7><field>H:\esim\eSim\library\SubcircuitLibrary\Rnk_Blk</field></x7><x2><field>H:\esim\eSim\library\SubcircuitLibrary\Rnk_Blk</field></x2><x4><field>H:\esim\eSim\library\SubcircuitLibrary\Rnk_Blk</field></x4><x6><field>H:\esim\eSim\library\SubcircuitLibrary\Rnk_Blk</field></x6><x8><field>H:\esim\eSim\library\SubcircuitLibrary\Rnk_Blk</field></x8></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/analysis b/library/SubcircuitLibrary/SN74LS548/analysis
new file mode 100644
index 000000000..ebd5c0a94
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/analysis
@@ -0,0 +1 @@
+.tran 0e-00 0e-00 0e-00
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/tri_state-cache.lib b/library/SubcircuitLibrary/SN74LS548/tri_state-cache.lib
new file mode 100644
index 000000000..e99b45ce5
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/tri_state-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN74LS548/tri_state.bak b/library/SubcircuitLibrary/SN74LS548/tri_state.bak
new file mode 100644
index 000000000..42f6325e1
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/tri_state.bak
@@ -0,0 +1,195 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:tri_state-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 686E04ED
+P 5150 2450
+F 0 "SC1" H 5200 2750 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5450 2537 50  0000 R CNN
+F 2 "" H 5150 950 50  0001 C CNN
+F 3 "" H 5150 2450 50  0001 C CNN
+	1    5150 2450
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 686E0554
+P 5150 3250
+F 0 "SC2" H 5200 3550 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5450 3337 50  0000 R CNN
+F 2 "" H 5150 1750 50  0001 C CNN
+F 3 "" H 5150 3250 50  0001 C CNN
+	1    5150 3250
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 686E05B6
+P 9300 2250
+F 0 "scmode1" H 9300 2400 98  0000 C CNB
+F 1 "SKY130mode" H 9300 2150 118 0000 C CNB
+F 2 "" H 9300 2400 60  0001 C CNN
+F 3 "" H 9300 2400 60  0001 C CNN
+	1    9300 2250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686E061D
+P 4200 2800
+F 0 "U1" H 4250 2900 30  0000 C CNN
+F 1 "PORT" H 4200 2800 30  0000 C CNN
+F 2 "" H 4200 2800 60  0000 C CNN
+F 3 "" H 4200 2800 60  0000 C CNN
+	1    4200 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686E069C
+P 5050 1900
+F 0 "U1" H 5100 2000 30  0000 C CNN
+F 1 "PORT" H 5050 1900 30  0000 C CNN
+F 2 "" H 5050 1900 60  0000 C CNN
+F 3 "" H 5050 1900 60  0000 C CNN
+	2    5050 1900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686E0725
+P 5100 3750
+F 0 "U1" H 5150 3850 30  0000 C CNN
+F 1 "PORT" H 5100 3750 30  0000 C CNN
+F 2 "" H 5100 3750 60  0000 C CNN
+F 3 "" H 5100 3750 60  0000 C CNN
+	3    5100 3750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686E0750
+P 6800 2800
+F 0 "U1" H 6850 2900 30  0000 C CNN
+F 1 "PORT" H 6800 2800 30  0000 C CNN
+F 2 "" H 6800 2800 60  0000 C CNN
+F 3 "" H 6800 2800 60  0000 C CNN
+	5    6800 2800
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686E0793
+P 6200 2150
+F 0 "U1" H 6250 2250 30  0000 C CNN
+F 1 "PORT" H 6200 2150 30  0000 C CNN
+F 2 "" H 6200 2150 60  0000 C CNN
+F 3 "" H 6200 2150 60  0000 C CNN
+	4    6200 2150
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	4850 2450 4850 3250
+Wire Wire Line
+	4450 2800 4850 2800
+Connection ~ 4850 2800
+Wire Wire Line
+	5350 2750 5350 2950
+Wire Wire Line
+	5400 2450 5250 2450
+Wire Wire Line
+	5400 1900 5400 2450
+Wire Wire Line
+	5400 2150 5350 2150
+Wire Wire Line
+	5300 1900 5400 1900
+Connection ~ 5400 2150
+Wire Wire Line
+	5250 3250 5400 3250
+Wire Wire Line
+	5400 3250 5400 3750
+Wire Wire Line
+	5400 3550 5350 3550
+Wire Wire Line
+	5400 3750 5350 3750
+Connection ~ 5400 3550
+Wire Wire Line
+	5650 2800 5350 2800
+Connection ~ 5350 2800
+Wire Wire Line
+	5950 2850 5950 2700
+Wire Wire Line
+	5550 2850 5950 2850
+Wire Wire Line
+	5550 2850 5550 2800
+Connection ~ 5550 2800
+Wire Wire Line
+	6250 2800 6550 2800
+Wire Wire Line
+	5950 2300 5950 2150
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 686E7F5A
+P 5950 2600
+F 0 "SC3" H 6000 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6250 2687 50  0000 R CNN
+F 2 "" H 5950 1100 50  0001 C CNN
+F 3 "" H 5950 2600 50  0001 C CNN
+	1    5950 2600
+	0    1    1    0   
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74LS548/tri_state.cir b/library/SubcircuitLibrary/SN74LS548/tri_state.cir
new file mode 100644
index 000000000..344a32960
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/tri_state.cir
@@ -0,0 +1,15 @@
+* H:\esim\eSim\library\SubcircuitLibrary\tri_state\tri_state.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 07/16/25 21:17:02
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC2-Pad3_ Net-_SC2-Pad3_ sky130_fd_pr__nfet_01v8		
+scmode1  SKY130mode		
+U1  Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC2-Pad3_ Net-_SC3-Pad2_ Net-_SC3-Pad1_ PORT		
+SC3  Net-_SC3-Pad1_ Net-_SC3-Pad2_ Net-_SC1-Pad1_ Net-_SC1-Pad1_ sky130_fd_pr__nfet_01v8		
+
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/tri_state.cir.out b/library/SubcircuitLibrary/SN74LS548/tri_state.cir.out
new file mode 100644
index 000000000..b8ee10126
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/tri_state.cir.out
@@ -0,0 +1,17 @@
+* h:\esim\esim\library\subcircuitlibrary\tri_state\tri_state.cir
+
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* u1  net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc3-pad2_ net-_sc3-pad1_ port
+xsc3 net-_sc3-pad1_ net-_sc3-pad2_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/SN74LS548/tri_state.pro b/library/SubcircuitLibrary/SN74LS548/tri_state.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/tri_state.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/SN74LS548/tri_state.sch b/library/SubcircuitLibrary/SN74LS548/tri_state.sch
new file mode 100644
index 000000000..42f6325e1
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/tri_state.sch
@@ -0,0 +1,195 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:tri_state-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 686E04ED
+P 5150 2450
+F 0 "SC1" H 5200 2750 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5450 2537 50  0000 R CNN
+F 2 "" H 5150 950 50  0001 C CNN
+F 3 "" H 5150 2450 50  0001 C CNN
+	1    5150 2450
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC2
+U 1 1 686E0554
+P 5150 3250
+F 0 "SC2" H 5200 3550 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5450 3337 50  0000 R CNN
+F 2 "" H 5150 1750 50  0001 C CNN
+F 3 "" H 5150 3250 50  0001 C CNN
+	1    5150 3250
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 686E05B6
+P 9300 2250
+F 0 "scmode1" H 9300 2400 98  0000 C CNB
+F 1 "SKY130mode" H 9300 2150 118 0000 C CNB
+F 2 "" H 9300 2400 60  0001 C CNN
+F 3 "" H 9300 2400 60  0001 C CNN
+	1    9300 2250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 686E061D
+P 4200 2800
+F 0 "U1" H 4250 2900 30  0000 C CNN
+F 1 "PORT" H 4200 2800 30  0000 C CNN
+F 2 "" H 4200 2800 60  0000 C CNN
+F 3 "" H 4200 2800 60  0000 C CNN
+	1    4200 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 686E069C
+P 5050 1900
+F 0 "U1" H 5100 2000 30  0000 C CNN
+F 1 "PORT" H 5050 1900 30  0000 C CNN
+F 2 "" H 5050 1900 60  0000 C CNN
+F 3 "" H 5050 1900 60  0000 C CNN
+	2    5050 1900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 686E0725
+P 5100 3750
+F 0 "U1" H 5150 3850 30  0000 C CNN
+F 1 "PORT" H 5100 3750 30  0000 C CNN
+F 2 "" H 5100 3750 60  0000 C CNN
+F 3 "" H 5100 3750 60  0000 C CNN
+	3    5100 3750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686E0750
+P 6800 2800
+F 0 "U1" H 6850 2900 30  0000 C CNN
+F 1 "PORT" H 6800 2800 30  0000 C CNN
+F 2 "" H 6800 2800 60  0000 C CNN
+F 3 "" H 6800 2800 60  0000 C CNN
+	5    6800 2800
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686E0793
+P 6200 2150
+F 0 "U1" H 6250 2250 30  0000 C CNN
+F 1 "PORT" H 6200 2150 30  0000 C CNN
+F 2 "" H 6200 2150 60  0000 C CNN
+F 3 "" H 6200 2150 60  0000 C CNN
+	4    6200 2150
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	4850 2450 4850 3250
+Wire Wire Line
+	4450 2800 4850 2800
+Connection ~ 4850 2800
+Wire Wire Line
+	5350 2750 5350 2950
+Wire Wire Line
+	5400 2450 5250 2450
+Wire Wire Line
+	5400 1900 5400 2450
+Wire Wire Line
+	5400 2150 5350 2150
+Wire Wire Line
+	5300 1900 5400 1900
+Connection ~ 5400 2150
+Wire Wire Line
+	5250 3250 5400 3250
+Wire Wire Line
+	5400 3250 5400 3750
+Wire Wire Line
+	5400 3550 5350 3550
+Wire Wire Line
+	5400 3750 5350 3750
+Connection ~ 5400 3550
+Wire Wire Line
+	5650 2800 5350 2800
+Connection ~ 5350 2800
+Wire Wire Line
+	5950 2850 5950 2700
+Wire Wire Line
+	5550 2850 5950 2850
+Wire Wire Line
+	5550 2850 5550 2800
+Connection ~ 5550 2800
+Wire Wire Line
+	6250 2800 6550 2800
+Wire Wire Line
+	5950 2300 5950 2150
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 686E7F5A
+P 5950 2600
+F 0 "SC3" H 6000 2900 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 6250 2687 50  0000 R CNN
+F 2 "" H 5950 1100 50  0001 C CNN
+F 3 "" H 5950 2600 50  0001 C CNN
+	1    5950 2600
+	0    1    1    0   
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN74LS548/tri_state.sub b/library/SubcircuitLibrary/SN74LS548/tri_state.sub
new file mode 100644
index 000000000..603f6daee
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/tri_state.sub
@@ -0,0 +1,11 @@
+* Subcircuit tri_state
+.subckt tri_state net-_sc1-pad2_ net-_sc1-pad3_ net-_sc2-pad3_ net-_sc3-pad2_ net-_sc3-pad1_ 
+* h:\esim\esim\library\subcircuitlibrary\tri_state\tri_state.cir
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc2-pad3_ net-_sc2-pad3_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+xsc3 net-_sc3-pad1_ net-_sc3-pad2_ net-_sc1-pad1_ net-_sc1-pad1_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* Control Statements
+
+.ends tri_state
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN74LS548/tri_state_Previous_Values.xml b/library/SubcircuitLibrary/SN74LS548/tri_state_Previous_Values.xml
new file mode 100644
index 000000000..3490db45b
--- /dev/null
+++ b/library/SubcircuitLibrary/SN74LS548/tri_state_Previous_Values.xml
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP-cache.lib b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP-cache.lib
new file mode 100644
index 000000000..14a754158
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP-cache.lib
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+#encoding utf-8
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diff --git a/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.bak b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.bak
new file mode 100644
index 000000000..a1d188a96
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.bak
@@ -0,0 +1,669 @@
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+LIBS:microcontrollers
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+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
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+Wire Wire Line
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+Connection ~ 1950 1800
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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diff --git a/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.cir b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.cir
new file mode 100644
index 000000000..b2dd5c478
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.cir
@@ -0,0 +1,22 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 21:40:54 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  /A_bar /B_bar /Gnd /Vd Net-_U1-Pad5_ /C_bar /D_bar Y0		
+X4  /Vd /A /B_bar /Gnd /C_bar /D_bar Net-_U1-Pad10_ Y1		
+X6  /Vd /A_bar /B /Gnd /C_bar /D_bar Net-_U1-Pad15_ Y2		
+X9  /Vd /A /B /Gnd /C_bar /D_bar Net-_U1-Pad19_ Y3		
+X2  /Vd /A_bar /B_bar /Gnd /C /D_bar Net-_U1-Pad7_ Y4		
+X5  /Vd /A /B_bar /Gnd /C /D_bar Net-_U1-Pad13_ Y5		
+X7  /Vd /A_bar /B /Gnd /C /D_bar Net-_U1-Pad16_ Y6		
+X10  /Vd /A /B /Gnd /C /D_bar Net-_U1-Pad20_ Y7		
+X8  /Vd /A /B_bar /Gnd /C_bar /D Net-_U1-Pad17_ Y9		
+scmode1  SKY130mode		
+U1  /Vd /A_bar /B_bar /D_bar Net-_U1-Pad5_ /A Net-_U1-Pad7_ /Gnd Net-_U1-Pad9_ Net-_U1-Pad10_ /C /C_bar Net-_U1-Pad13_ /B Net-_U1-Pad15_ Net-_U1-Pad16_ Net-_U1-Pad17_ /D Net-_U1-Pad19_ Net-_U1-Pad20_ PORT		
+X3  /Vd /A_bar /B_bar /Gnd /C_bar /D Net-_U1-Pad9_ Y8		
+
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.cir.out b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.cir.out
new file mode 100644
index 000000000..0fcc3f4a9
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.cir.out
@@ -0,0 +1,35 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/tc74hc4028ap/tc74hc4028ap.cir
+
+.include Y5.sub
+.include Y1.sub
+.include Y2.sub
+.include Y8.sub
+.include Y4.sub
+.include Y9.sub
+.include Y7.sub
+.include Y3.sub
+.include Y6.sub
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 /a_bar /b_bar /gnd /vd net-_u1-pad5_ /c_bar /d_bar Y0
+x4 /vd /a /b_bar /gnd /c_bar /d_bar net-_u1-pad10_ Y1
+x6 /vd /a_bar /b /gnd /c_bar /d_bar net-_u1-pad15_ Y2
+x9 /vd /a /b /gnd /c_bar /d_bar net-_u1-pad19_ Y3
+x2 /vd /a_bar /b_bar /gnd /c /d_bar net-_u1-pad7_ Y4
+x5 /vd /a /b_bar /gnd /c /d_bar net-_u1-pad13_ Y5
+x7 /vd /a_bar /b /gnd /c /d_bar net-_u1-pad16_ Y6
+x10 /vd /a /b /gnd /c /d_bar net-_u1-pad20_ Y7
+x8 /vd /a /b_bar /gnd /c_bar /d net-_u1-pad17_ Y9
+* s c m o d e
+* u1  /vd /a_bar /b_bar /d_bar net-_u1-pad5_ /a net-_u1-pad7_ /gnd net-_u1-pad9_ net-_u1-pad10_ /c /c_bar net-_u1-pad13_ /b net-_u1-pad15_ net-_u1-pad16_ net-_u1-pad17_ /d net-_u1-pad19_ net-_u1-pad20_ port
+x3 /vd /a_bar /b_bar /gnd /c_bar /d net-_u1-pad9_ Y8
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.pro b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.sch b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.sch
new file mode 100644
index 000000000..7fbc2d5c9
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.sch
@@ -0,0 +1,669 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:TC74HC4028AP-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
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+L PORT U1
+U 5 1 6869A547
+P 3100 950
+F 0 "U1" H 3150 1050 30  0000 C CNN
+F 1 "PORT" H 3100 950 30  0000 C CNN
+F 2 "" H 3100 950 60  0000 C CNN
+F 3 "" H 3100 950 60  0000 C CNN
+	5    3100 950 
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 10 1 6869A7EA
+P 4150 950
+F 0 "U1" H 4200 1050 30  0000 C CNN
+F 1 "PORT" H 4150 950 30  0000 C CNN
+F 2 "" H 4150 950 60  0000 C CNN
+F 3 "" H 4150 950 60  0000 C CNN
+	10   4150 950 
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	2100 1150 1800 1150
+Wire Wire Line
+	1800 800  1800 2000
+Wire Wire Line
+	1800 800  6500 800 
+Wire Wire Line
+	6500 800  6500 1150
+Wire Wire Line
+	1800 2000 2100 2000
+Connection ~ 1800 1150
+Wire Wire Line
+	3600 1150 3500 1150
+Wire Wire Line
+	3500 800  3500 2700
+Connection ~ 3500 800 
+Wire Wire Line
+	3500 2000 3600 2000
+Connection ~ 3500 1150
+Wire Wire Line
+	5050 1150 4950 1150
+Wire Wire Line
+	4950 800  4950 2000
+Connection ~ 4950 800 
+Wire Wire Line
+	4950 2000 5050 2000
+Connection ~ 4950 1150
+Wire Wire Line
+	6500 2000 6400 2000
+Wire Wire Line
+	6400 2000 6400 800 
+Connection ~ 6400 800 
+Wire Wire Line
+	2950 2900 2950 2700
+Wire Wire Line
+	2950 2700 5700 2700
+Connection ~ 3500 2000
+Wire Wire Line
+	2650 1600 2650 1700
+Wire Wire Line
+	2650 1700 7100 1700
+Wire Wire Line
+	7100 1700 7100 2550
+Wire Wire Line
+	7100 2550 2550 2550
+Wire Wire Line
+	2550 2550 2550 3450
+Wire Wire Line
+	2550 3450 6250 3450
+Wire Wire Line
+	6250 3450 6250 3350
+Wire Wire Line
+	3500 3350 3500 3450
+Connection ~ 3500 3450
+Wire Wire Line
+	2650 2450 2650 2550
+Connection ~ 2650 2550
+Wire Wire Line
+	4150 2450 4150 2550
+Connection ~ 4150 2550
+Wire Wire Line
+	5600 2450 5600 2550
+Connection ~ 5600 2550
+Wire Wire Line
+	7050 2450 7050 2550
+Connection ~ 7050 2550
+Wire Wire Line
+	7000 1600 7000 1700
+Connection ~ 7000 1700
+Wire Wire Line
+	5550 1600 5550 1700
+Connection ~ 5550 1700
+Wire Wire Line
+	4100 1600 4100 1700
+Connection ~ 4100 1700
+Wire Wire Line
+	5700 2700 5700 2900
+Connection ~ 3500 2700
+Wire Wire Line
+	2100 1250 1850 1250
+Wire Wire Line
+	1850 1250 1850 3000
+Wire Wire Line
+	1850 2100 2100 2100
+Wire Wire Line
+	5050 1250 4900 1250
+Wire Wire Line
+	4900 1250 4900 2100
+Wire Wire Line
+	4900 2100 5050 2100
+Wire Wire Line
+	4900 1750 1850 1750
+Connection ~ 1850 1750
+Connection ~ 4900 1750
+Wire Wire Line
+	1850 3000 2950 3000
+Connection ~ 1850 2100
+Wire Wire Line
+	2100 1350 1950 1350
+Wire Wire Line
+	1950 1350 1950 3200
+Wire Wire Line
+	1950 2200 2100 2200
+Wire Wire Line
+	3600 1350 3550 1350
+Wire Wire Line
+	3550 1350 3550 2200
+Wire Wire Line
+	3550 2200 3600 2200
+Wire Wire Line
+	1950 1800 3550 1800
+Connection ~ 3550 1800
+Connection ~ 1950 1800
+Wire Wire Line
+	5700 3100 5700 3200
+Wire Wire Line
+	5700 3200 1950 3200
+Connection ~ 1950 2200
+Wire Wire Line
+	2950 3100 2950 3200
+Connection ~ 2950 3200
+Wire Wire Line
+	3600 1250 3450 1250
+Wire Wire Line
+	3450 1250 3450 2100
+Wire Wire Line
+	3450 2100 3600 2100
+Wire Wire Line
+	6500 1250 6450 1250
+Wire Wire Line
+	6450 1250 6450 2100
+Wire Wire Line
+	6450 2100 6500 2100
+Wire Wire Line
+	3450 1500 6450 1500
+Connection ~ 6450 1500
+Connection ~ 3450 1500
+Wire Wire Line
+	5700 3000 4850 3000
+Wire Wire Line
+	4850 3000 4850 1500
+Connection ~ 4850 1500
+Wire Wire Line
+	5050 1350 5000 1350
+Wire Wire Line
+	5000 1350 5000 2200
+Wire Wire Line
+	5000 2200 5050 2200
+Wire Wire Line
+	6500 1350 6350 1350
+Wire Wire Line
+	6350 1350 6350 2200
+Wire Wire Line
+	6350 2200 6500 2200
+Wire Wire Line
+	6350 1600 5000 1600
+Connection ~ 5000 1600
+Connection ~ 6350 1600
+Wire Wire Line
+	3200 1150 3200 1050
+Wire Wire Line
+	3200 1050 7550 1050
+Wire Wire Line
+	7550 1050 7550 1150
+Wire Wire Line
+	4100 2900 4100 2800
+Wire Wire Line
+	4100 2800 6800 2800
+Wire Wire Line
+	6800 2800 6800 2900
+Wire Wire Line
+	4800 950  4800 2800
+Connection ~ 4800 2800
+Connection ~ 4800 1050
+Wire Wire Line
+	4650 1150 4650 1050
+Connection ~ 4650 1050
+Wire Wire Line
+	6100 1150 6100 1050
+Connection ~ 6100 1050
+Wire Wire Line
+	3200 2000 3200 1900
+Wire Wire Line
+	3200 1900 7600 1900
+Wire Wire Line
+	7600 1900 7600 2000
+Wire Wire Line
+	6150 2000 6150 1900
+Connection ~ 6150 1900
+Wire Wire Line
+	4700 1800 4700 2000
+Connection ~ 4700 1900
+Wire Wire Line
+	3200 1250 3250 1250
+Wire Wire Line
+	3250 1250 3250 2100
+Wire Wire Line
+	3250 2100 3200 2100
+Wire Wire Line
+	4650 1250 4750 1250
+Wire Wire Line
+	4750 1250 4750 2100
+Wire Wire Line
+	4750 2100 4700 2100
+Wire Wire Line
+	6100 1250 6250 1250
+Wire Wire Line
+	6250 1250 6250 2100
+Wire Wire Line
+	6250 2100 6150 2100
+Wire Wire Line
+	7550 1250 7650 1250
+Wire Wire Line
+	7650 1250 7650 2100
+Wire Wire Line
+	7650 2100 7600 2100
+Wire Wire Line
+	3250 1600 4600 1600
+Wire Wire Line
+	4600 1600 4600 1450
+Wire Wire Line
+	4600 1450 7650 1450
+Connection ~ 7650 1450
+Connection ~ 3250 1600
+Connection ~ 6250 1450
+Connection ~ 4750 1450
+Wire Wire Line
+	4100 3000 4200 3000
+Wire Wire Line
+	4200 3000 4200 2650
+Wire Wire Line
+	4200 2650 6900 2650
+Wire Wire Line
+	6900 2650 6900 3000
+Wire Wire Line
+	6800 3000 7000 3000
+Connection ~ 6900 3000
+Wire Wire Line
+	3350 950  3350 1350
+Wire Wire Line
+	3350 1350 3200 1350
+Wire Wire Line
+	4400 950  4700 950 
+Wire Wire Line
+	4700 950  4700 1350
+Wire Wire Line
+	4700 1350 4650 1350
+$Comp
+L PORT U1
+U 15 1 6869A9FB
+P 5950 950
+F 0 "U1" H 6000 1050 30  0000 C CNN
+F 1 "PORT" H 5950 950 30  0000 C CNN
+F 2 "" H 5950 950 60  0000 C CNN
+F 3 "" H 5950 950 60  0000 C CNN
+	15   5950 950 
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6200 950  6200 1350
+Wire Wire Line
+	6200 1350 6100 1350
+$Comp
+L PORT U1
+U 19 1 6869AC25
+P 7800 1350
+F 0 "U1" H 7850 1450 30  0000 C CNN
+F 1 "PORT" H 7800 1350 30  0000 C CNN
+F 2 "" H 7800 1350 60  0000 C CNN
+F 3 "" H 7800 1350 60  0000 C CNN
+	19   7800 1350
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 20 1 6869ACEC
+P 7850 2200
+F 0 "U1" H 7900 2300 30  0000 C CNN
+F 1 "PORT" H 7850 2200 30  0000 C CNN
+F 2 "" H 7850 2200 60  0000 C CNN
+F 3 "" H 7850 2200 60  0000 C CNN
+	20   7850 2200
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 16 1 6869ADC5
+P 6150 2450
+F 0 "U1" H 6200 2550 30  0000 C CNN
+F 1 "PORT" H 6150 2450 30  0000 C CNN
+F 2 "" H 6150 2450 60  0000 C CNN
+F 3 "" H 6150 2450 60  0000 C CNN
+	16   6150 2450
+	0    -1   -1   0   
+$EndComp
+$Comp
+L PORT U1
+U 13 1 6869AF77
+P 4700 2450
+F 0 "U1" H 4750 2550 30  0000 C CNN
+F 1 "PORT" H 4700 2450 30  0000 C CNN
+F 2 "" H 4700 2450 60  0000 C CNN
+F 3 "" H 4700 2450 60  0000 C CNN
+	13   4700 2450
+	0    -1   -1   0   
+$EndComp
+$Comp
+L PORT U1
+U 7 1 6869B03E
+P 3200 2450
+F 0 "U1" H 3250 2550 30  0000 C CNN
+F 1 "PORT" H 3200 2450 30  0000 C CNN
+F 2 "" H 3200 2450 60  0000 C CNN
+F 3 "" H 3200 2450 60  0000 C CNN
+	7    3200 2450
+	0    -1   -1   0   
+$EndComp
+$Comp
+L PORT U1
+U 9 1 6869B11E
+P 4100 3350
+F 0 "U1" H 4150 3450 30  0000 C CNN
+F 1 "PORT" H 4100 3350 30  0000 C CNN
+F 2 "" H 4100 3350 60  0000 C CNN
+F 3 "" H 4100 3350 60  0000 C CNN
+	9    4100 3350
+	0    -1   -1   0   
+$EndComp
+$Comp
+L PORT U1
+U 17 1 6869B205
+P 6800 3350
+F 0 "U1" H 6850 3450 30  0000 C CNN
+F 1 "PORT" H 6800 3350 30  0000 C CNN
+F 2 "" H 6800 3350 60  0000 C CNN
+F 3 "" H 6800 3350 60  0000 C CNN
+	17   6800 3350
+	0    -1   -1   0   
+$EndComp
+$Comp
+L Y8 X3
+U 1 1 68695022
+P 3500 3000
+F 0 "X3" H 3500 3100 60  0000 C CNN
+F 1 "Y8" H 3450 2800 60  0000 C CNN
+F 2 "" H 3500 3000 60  0001 C CNN
+F 3 "" H 3500 3000 60  0001 C CNN
+	1    3500 3000
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.sub b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.sub
new file mode 100644
index 000000000..5a8530dc2
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP.sub
@@ -0,0 +1,29 @@
+* Subcircuit TC74HC4028AP
+.subckt TC74HC4028AP /vd /a_bar /b_bar /d_bar net-_u1-pad5_ /a net-_u1-pad7_ /gnd net-_u1-pad9_ net-_u1-pad10_ /c /c_bar net-_u1-pad13_ /b net-_u1-pad15_ net-_u1-pad16_ net-_u1-pad17_ /d net-_u1-pad19_ net-_u1-pad20_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/tc74hc4028ap/tc74hc4028ap.cir
+.include Y5.sub
+.include Y1.sub
+.include Y2.sub
+.include Y8.sub
+.include Y4.sub
+.include Y9.sub
+.include Y7.sub
+.include Y3.sub
+.include Y6.sub
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 /a_bar /b_bar /gnd /vd net-_u1-pad5_ /c_bar /d_bar Y0
+x4 /vd /a /b_bar /gnd /c_bar /d_bar net-_u1-pad10_ Y1
+x6 /vd /a_bar /b /gnd /c_bar /d_bar net-_u1-pad15_ Y2
+x9 /vd /a /b /gnd /c_bar /d_bar net-_u1-pad19_ Y3
+x2 /vd /a_bar /b_bar /gnd /c /d_bar net-_u1-pad7_ Y4
+x5 /vd /a /b_bar /gnd /c /d_bar net-_u1-pad13_ Y5
+x7 /vd /a_bar /b /gnd /c /d_bar net-_u1-pad16_ Y6
+x10 /vd /a /b /gnd /c /d_bar net-_u1-pad20_ Y7
+x8 /vd /a /b_bar /gnd /c_bar /d net-_u1-pad17_ Y9
+* s c m o d e
+x3 /vd /a_bar /b_bar /gnd /c_bar /d net-_u1-pad9_ Y8
+* Control Statements
+
+.ends TC74HC4028AP
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP_Previous_Values.xml b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP_Previous_Values.xml
new file mode 100644
index 000000000..c9c66b6e4
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/TC74HC4028AP_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y0</field></x1><x4><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y1</field></x4><x6><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y2</field></x6><x9><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y3</field></x9><x2><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y4</field></x2><x5><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y5</field></x5><x7><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y6</field></x7><x10><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y7</field></x10><x8><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y9</field></x8><x3><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y8</field></x3></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y0-cache.lib b/library/SubcircuitLibrary/TC74HC4028AP/Y0-cache.lib
new file mode 100644
index 000000000..b57744f64
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y0-cache.lib
@@ -0,0 +1,110 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__nfet_01v8
+#
+DEF sky130_fd_pr__nfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__nfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 0 2 -200 0 25 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 150 -175 N
+P 2 0 0 2 75 175 200 175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 150 -150 200 -175 150 -200 150 -150 F
+P 4 0 0 1 200 25 150 0 200 -25 200 25 F
+X D 1 200 300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 -300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+# sky130_fd_pr__pfet_01v8
+#
+DEF sky130_fd_pr__pfet_01v8 SC 0 20 Y N 1 F N
+F0 "SC" 50 300 50 H V C CNN
+F1 "sky130_fd_pr__pfet_01v8" 300 87 50 H V R CNN
+F2 "" 0 -1500 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -25 0 50 0 600 0 0 1 N 25 0 0 43
+A -25 0 50 600 1200 0 0 1 N 0 43 -50 43
+A -25 0 50 1200 1800 0 0 1 N -50 43 -75 0
+A -25 0 50 1800 -1200 0 0 1 N -75 0 -50 -43
+A -25 0 50 -1200 -600 0 0 1 N -50 -43 0 -43
+A -25 0 50 -600 0 0 0 1 N 0 -43 25 0
+P 2 0 0 2 -200 0 -75 0 N
+P 2 0 0 2 25 150 25 -150 N
+P 2 0 0 2 75 -175 200 -175 N
+P 2 0 0 2 75 225 75 -225 N
+P 2 0 0 2 125 175 200 175 N
+P 2 0 0 2 200 -175 200 -300 N
+P 2 0 0 2 200 300 200 175 N
+P 4 0 0 1 125 200 75 175 125 150 125 200 F
+P 4 0 0 1 150 25 200 0 150 -25 150 25 F
+X D 1 200 -300 5 R 50 43 1 1 B
+X G 2 -300 0 100 R 50 43 1 1 I
+X S 3 200 300 5 R 50 43 1 1 B
+X B 4 100 0 100 R 50 43 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y0.bak b/library/SubcircuitLibrary/TC74HC4028AP/Y0.bak
new file mode 100644
index 000000000..39c2c4129
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y0.bak
@@ -0,0 +1,330 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L sky130_fd_pr__pfet_01v8 SC1
+U 1 1 68676C8E
+P 3950 1650
+F 0 "SC1" H 4000 1950 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 4250 1737 50  0000 R CNN
+F 2 "" H 3950 150 50  0001 C CNN
+F 3 "" H 3950 1650 50  0001 C CNN
+	1    3950 1650
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC2
+U 1 1 68676CCD
+P 4900 1650
+F 0 "SC2" H 4950 1950 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5200 1737 50  0000 R CNN
+F 2 "" H 4900 150 50  0001 C CNN
+F 3 "" H 4900 1650 50  0001 C CNN
+	1    4900 1650
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC7
+U 1 1 68676D7A
+P 5500 1650
+F 0 "SC7" H 5550 1950 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 5800 1737 50  0000 R CNN
+F 2 "" H 5500 150 50  0001 C CNN
+F 3 "" H 5500 1650 50  0001 C CNN
+	1    5500 1650
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC8
+U 1 1 68676DC9
+P 6450 1650
+F 0 "SC8" H 6500 1950 50  0000 C CNN
+F 1 "sky130_fd_pr__pfet_01v8" H 6750 1737 50  0000 R CNN
+F 2 "" H 6450 150 50  0001 C CNN
+F 3 "" H 6450 1650 50  0001 C CNN
+	1    6450 1650
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC3
+U 1 1 68676F1A
+P 5000 2500
+F 0 "SC3" H 5050 2800 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5300 2587 50  0000 R CNN
+F 2 "" H 5000 1000 50  0001 C CNN
+F 3 "" H 5000 2500 50  0001 C CNN
+	1    5000 2500
+	1    0    0    -1  
+$EndComp
+$Comp
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+U 1 1 68676F92
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+F 2 "" H 5000 1650 50  0001 C CNN
+F 3 "" H 5000 3150 50  0001 C CNN
+	1    5000 3150
+	1    0    0    -1  
+$EndComp
+$Comp
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+U 1 1 68676FE3
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+F 0 "SC5" H 5450 4100 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5700 3887 50  0000 R CNN
+F 2 "" H 5400 2300 50  0001 C CNN
+F 3 "" H 5400 3800 50  0001 C CNN
+	1    5400 3800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__nfet_01v8 SC6
+U 1 1 68677050
+P 5400 4450
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+F 1 "sky130_fd_pr__nfet_01v8" H 5700 4537 50  0000 R CNN
+F 2 "" H 5400 2950 50  0001 C CNN
+F 3 "" H 5400 4450 50  0001 C CNN
+	1    5400 4450
+	-1   0    0    -1  
+$EndComp
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 5150 1300
+Wire Wire Line
+	5150 1650 5150 1300
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+F 3 "" H 4200 2150 60  0000 C CNN
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+F 3 "" H 6450 2850 60  0000 C CNN
+	7    6450 2850
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+F 2 "" H 4800 4750 60  0000 C CNN
+F 3 "" H 4800 4750 60  0000 C CNN
+	3    4800 4750
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+$Comp
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+F 1 "PORT" H 4950 1200 30  0000 C CNN
+F 2 "" H 4950 1200 60  0000 C CNN
+F 3 "" H 4950 1200 60  0000 C CNN
+	4    4950 1200
+	1    0    0    -1  
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+Wire Wire Line
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+Connection ~ 5200 1300
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+Connection ~ 3650 1850
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+Connection ~ 4500 2150
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+Connection ~ 5800 2850
+Wire Wire Line
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+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y0.cir b/library/SubcircuitLibrary/TC74HC4028AP/Y0.cir
new file mode 100644
index 000000000..622527f5c
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y0.cir
@@ -0,0 +1,20 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y0/Y0.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 11:46:28 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+SC1  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC2  Net-_SC1-Pad1_ Net-_SC2-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC7  Net-_SC1-Pad1_ Net-_SC5-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC8  Net-_SC1-Pad1_ Net-_SC6-Pad2_ Net-_SC1-Pad3_ Net-_SC1-Pad3_ sky130_fd_pr__pfet_01v8		
+SC3  Net-_SC1-Pad1_ Net-_SC1-Pad2_ Net-_SC3-Pad3_ Net-_SC3-Pad4_ sky130_fd_pr__nfet_01v8		
+SC4  Net-_SC3-Pad3_ Net-_SC2-Pad2_ Net-_SC4-Pad3_ Net-_SC3-Pad4_ sky130_fd_pr__nfet_01v8		
+SC5  Net-_SC4-Pad3_ Net-_SC5-Pad2_ Net-_SC5-Pad3_ Net-_SC3-Pad4_ sky130_fd_pr__nfet_01v8		
+SC6  Net-_SC5-Pad3_ Net-_SC6-Pad2_ Net-_SC3-Pad4_ Net-_SC3-Pad4_ sky130_fd_pr__nfet_01v8		
+U1  Net-_SC1-Pad2_ Net-_SC2-Pad2_ Net-_SC3-Pad4_ Net-_SC1-Pad3_ Net-_SC1-Pad1_ Net-_SC5-Pad2_ Net-_SC6-Pad2_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y0.cir.out b/library/SubcircuitLibrary/TC74HC4028AP/Y0.cir.out
new file mode 100644
index 000000000..7eb8fc0d0
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y0.cir.out
@@ -0,0 +1,23 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y0/y0.cir
+
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc7 net-_sc1-pad1_ net-_sc5-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc8 net-_sc1-pad1_ net-_sc6-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc3-pad3_ net-_sc2-pad2_ net-_sc4-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc5 net-_sc4-pad3_ net-_sc5-pad2_ net-_sc5-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc6 net-_sc5-pad3_ net-_sc6-pad2_ net-_sc3-pad4_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* u1  net-_sc1-pad2_ net-_sc2-pad2_ net-_sc3-pad4_ net-_sc1-pad3_ net-_sc1-pad1_ net-_sc5-pad2_ net-_sc6-pad2_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y0.pro b/library/SubcircuitLibrary/TC74HC4028AP/Y0.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y0.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y0.sch b/library/SubcircuitLibrary/TC74HC4028AP/Y0.sch
new file mode 100644
index 000000000..ed74e0c7b
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y0.sch
@@ -0,0 +1,341 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
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+F 1 "sky130_fd_pr__pfet_01v8" H 4250 1737 50  0000 R CNN
+F 2 "" H 3950 150 50  0001 C CNN
+F 3 "" H 3950 1650 50  0001 C CNN
+	1    3950 1650
+	1    0    0    -1  
+$EndComp
+$Comp
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+F 2 "" H 4900 150 50  0001 C CNN
+F 3 "" H 4900 1650 50  0001 C CNN
+	1    4900 1650
+	1    0    0    -1  
+$EndComp
+$Comp
+L sky130_fd_pr__pfet_01v8 SC7
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+F 1 "sky130_fd_pr__pfet_01v8" H 5800 1737 50  0000 R CNN
+F 2 "" H 5500 150 50  0001 C CNN
+F 3 "" H 5500 1650 50  0001 C CNN
+	1    5500 1650
+	-1   0    0    -1  
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+F 2 "" H 6450 150 50  0001 C CNN
+F 3 "" H 6450 1650 50  0001 C CNN
+	1    6450 1650
+	-1   0    0    -1  
+$EndComp
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+U 1 1 68676F1A
+P 5000 2500
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+F 2 "" H 5000 1000 50  0001 C CNN
+F 3 "" H 5000 2500 50  0001 C CNN
+	1    5000 2500
+	1    0    0    -1  
+$EndComp
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+F 0 "SC4" H 5050 3450 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5300 3237 50  0000 R CNN
+F 2 "" H 5000 1650 50  0001 C CNN
+F 3 "" H 5000 3150 50  0001 C CNN
+	1    5000 3150
+	1    0    0    -1  
+$EndComp
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+U 1 1 68676FE3
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+F 2 "" H 5400 2300 50  0001 C CNN
+F 3 "" H 5400 3800 50  0001 C CNN
+	1    5400 3800
+	-1   0    0    -1  
+$EndComp
+$Comp
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+U 1 1 68677050
+P 5400 4450
+F 0 "SC6" H 5450 4750 50  0000 C CNN
+F 1 "sky130_fd_pr__nfet_01v8" H 5700 4537 50  0000 R CNN
+F 2 "" H 5400 2950 50  0001 C CNN
+F 3 "" H 5400 4450 50  0001 C CNN
+	1    5400 4450
+	-1   0    0    -1  
+$EndComp
+Connection ~ 6200 1300
+Wire Wire Line
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+Connection ~ 4200 1300
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+	4200 1650 4200 1300
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+Connection ~ 5100 4450
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+Connection ~ 5100 3800
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+$Comp
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+F 3 "" H 3350 1850 60  0000 C CNN
+	1    3350 1850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68677B5F
+P 4200 2150
+F 0 "U1" H 4250 2250 30  0000 C CNN
+F 1 "PORT" H 4200 2150 30  0000 C CNN
+F 2 "" H 4200 2150 60  0000 C CNN
+F 3 "" H 4200 2150 60  0000 C CNN
+	2    4200 2150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 68677BC8
+P 5650 2100
+F 0 "U1" H 5700 2200 30  0000 C CNN
+F 1 "PORT" H 5650 2100 30  0000 C CNN
+F 2 "" H 5650 2100 60  0000 C CNN
+F 3 "" H 5650 2100 60  0000 C CNN
+	5    5650 2100
+	-1   0    0    -1  
+$EndComp
+$Comp
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+U 6 1 68677C7B
+P 6100 2850
+F 0 "U1" H 6150 2950 30  0000 C CNN
+F 1 "PORT" H 6100 2850 30  0000 C CNN
+F 2 "" H 6100 2850 60  0000 C CNN
+F 3 "" H 6100 2850 60  0000 C CNN
+	6    6100 2850
+	-1   0    0    -1  
+$EndComp
+$Comp
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+U 7 1 68677D10
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+F 1 "PORT" H 6450 2850 30  0000 C CNN
+F 2 "" H 6450 2850 60  0000 C CNN
+F 3 "" H 6450 2850 60  0000 C CNN
+	7    6450 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68677DD2
+P 4800 4750
+F 0 "U1" H 4850 4850 30  0000 C CNN
+F 1 "PORT" H 4800 4750 30  0000 C CNN
+F 2 "" H 4800 4750 60  0000 C CNN
+F 3 "" H 4800 4750 60  0000 C CNN
+	3    4800 4750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68677EED
+P 4950 1200
+F 0 "U1" H 5000 1300 30  0000 C CNN
+F 1 "PORT" H 4950 1200 30  0000 C CNN
+F 2 "" H 4950 1200 60  0000 C CNN
+F 3 "" H 4950 1200 60  0000 C CNN
+	4    4950 1200
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5200 1200 5200 1300
+Connection ~ 5200 1300
+Wire Wire Line
+	3600 1850 3650 1850
+Connection ~ 3650 1850
+Wire Wire Line
+	4450 2150 4500 2150
+Connection ~ 4500 2150
+Wire Wire Line
+	5400 2100 5200 2100
+Connection ~ 5200 2100
+Wire Wire Line
+	5850 2850 5800 2850
+Connection ~ 5800 2850
+Wire Wire Line
+	6700 2850 6750 2850
+Connection ~ 6750 2850
+Connection ~ 5100 4750
+$Comp
+L SKY130mode scmode1
+U 1 1 686789A5
+P 8950 2600
+F 0 "scmode1" H 8950 2750 98  0000 C CNB
+F 1 "SKY130mode" H 8950 2500 118 0000 C CNB
+F 2 "" H 8950 2750 60  0001 C CNN
+F 3 "" H 8950 2750 60  0001 C CNN
+	1    8950 2600
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y0.sub b/library/SubcircuitLibrary/TC74HC4028AP/Y0.sub
new file mode 100644
index 000000000..8fa0310cb
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y0.sub
@@ -0,0 +1,17 @@
+* Subcircuit Y0
+.subckt Y0 net-_sc1-pad2_ net-_sc2-pad2_ net-_sc3-pad4_ net-_sc1-pad3_ net-_sc1-pad1_ net-_sc5-pad2_ net-_sc6-pad2_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y0/y0.cir
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+xsc1 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc2 net-_sc1-pad1_ net-_sc2-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc7 net-_sc1-pad1_ net-_sc5-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc8 net-_sc1-pad1_ net-_sc6-pad2_ net-_sc1-pad3_ net-_sc1-pad3_ sky130_fd_pr__pfet_01v8 w=3 l=0.15
+xsc3 net-_sc1-pad1_ net-_sc1-pad2_ net-_sc3-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc4 net-_sc3-pad3_ net-_sc2-pad2_ net-_sc4-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc5 net-_sc4-pad3_ net-_sc5-pad2_ net-_sc5-pad3_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+xsc6 net-_sc5-pad3_ net-_sc6-pad2_ net-_sc3-pad4_ net-_sc3-pad4_ sky130_fd_pr__nfet_01v8 w=1 l=0.15
+* s c m o d e
+* Control Statements
+
+.ends Y0
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y0_Previous_Values.xml b/library/SubcircuitLibrary/TC74HC4028AP/Y0_Previous_Values.xml
new file mode 100644
index 000000000..0520033b7
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y0_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1><sc1><field>w=3 l=0.15</field></sc1><sc2><field>w=3 l=0.15</field></sc2><sc7><field>w=3 l=0.15</field></sc7><sc8><field>w=3 l=0.15</field></sc8><sc3><field>w=1 l=0.15</field></sc3><sc4><field>w=1 l=0.15</field></sc4><sc5><field>w=1 l=0.15</field></sc5><sc6><field>w=1 l=0.15</field></sc6></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y1-cache.lib b/library/SubcircuitLibrary/TC74HC4028AP/Y1-cache.lib
new file mode 100644
index 000000000..25c3aaccc
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y1-cache.lib
@@ -0,0 +1,75 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# Y0
+#
+DEF Y0 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y0" -50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 150 350 -150 0 1 0 N
+X A_bar 1 -550 0 200 R 50 50 1 1 I
+X B_bar 2 -550 -100 200 R 50 50 1 1 I
+X Gnd 3 0 -350 200 U 50 50 1 1 I
+X Vdd 4 -550 100 200 R 50 50 1 1 I
+X Y0 5 550 -100 200 L 50 50 1 1 O
+X C_bar 6 550 100 200 L 50 50 1 1 I
+X D_bar 7 550 0 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y1.bak b/library/SubcircuitLibrary/TC74HC4028AP/Y1.bak
new file mode 100644
index 000000000..d72313891
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y1.bak
@@ -0,0 +1,155 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Y0 X1
+U 1 1 6868C462
+P 5500 2950
+F 0 "X1" H 5500 3050 60  0000 C CNN
+F 1 "Y0" H 5450 2750 60  0000 C CNN
+F 2 "" H 5500 2950 60  0001 C CNN
+F 3 "" H 5500 2950 60  0001 C CNN
+	1    5500 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 6868C694
+P 4700 2850
+F 0 "U1" H 4750 2950 30  0000 C CNN
+F 1 "PORT" H 4700 2850 30  0000 C CNN
+F 2 "" H 4700 2850 60  0000 C CNN
+F 3 "" H 4700 2850 60  0000 C CNN
+	1    4700 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 6868C6F5
+P 4700 2950
+F 0 "U1" H 4750 3050 30  0000 C CNN
+F 1 "PORT" H 4700 2950 30  0000 C CNN
+F 2 "" H 4700 2950 60  0000 C CNN
+F 3 "" H 4700 2950 60  0000 C CNN
+	2    4700 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 6868C7FF
+P 4700 3050
+F 0 "U1" H 4750 3150 30  0000 C CNN
+F 1 "PORT" H 4700 3050 30  0000 C CNN
+F 2 "" H 4700 3050 60  0000 C CNN
+F 3 "" H 4700 3050 60  0000 C CNN
+	3    4700 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 6868C83E
+P 6300 2850
+F 0 "U1" H 6350 2950 30  0000 C CNN
+F 1 "PORT" H 6300 2850 30  0000 C CNN
+F 2 "" H 6300 2850 60  0000 C CNN
+F 3 "" H 6300 2850 60  0000 C CNN
+	5    6300 2850
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 6868C889
+P 6300 2950
+F 0 "U1" H 6350 3050 30  0000 C CNN
+F 1 "PORT" H 6300 2950 30  0000 C CNN
+F 2 "" H 6300 2950 60  0000 C CNN
+F 3 "" H 6300 2950 60  0000 C CNN
+	6    6300 2950
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 6868C8CC
+P 6300 3050
+F 0 "U1" H 6350 3150 30  0000 C CNN
+F 1 "PORT" H 6300 3050 30  0000 C CNN
+F 2 "" H 6300 3050 60  0000 C CNN
+F 3 "" H 6300 3050 60  0000 C CNN
+	7    6300 3050
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 6868C920
+P 5250 3300
+F 0 "U1" H 5300 3400 30  0000 C CNN
+F 1 "PORT" H 5250 3300 30  0000 C CNN
+F 2 "" H 5250 3300 60  0000 C CNN
+F 3 "" H 5250 3300 60  0000 C CNN
+	4    5250 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode?
+U 1 1 6868C9C1
+P 7500 3100
+F 0 "scmode?" H 7500 3250 98  0000 C CNB
+F 1 "SKY130mode" H 7500 3000 118 0000 C CNB
+F 2 "" H 7500 3250 60  0001 C CNN
+F 3 "" H 7500 3250 60  0001 C CNN
+	1    7500 3100
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y1.cir b/library/SubcircuitLibrary/TC74HC4028AP/Y1.cir
new file mode 100644
index 000000000..e63cff5a1
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y1.cir
@@ -0,0 +1,13 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y1/Y1.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 12:02:16 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad7_ Net-_U1-Pad5_ Net-_U1-Pad6_ Y0		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y1.cir.out b/library/SubcircuitLibrary/TC74HC4028AP/Y1.cir.out
new file mode 100644
index 000000000..1e95076e7
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y1.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y1/y1.cir
+
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y1.pro b/library/SubcircuitLibrary/TC74HC4028AP/Y1.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y1.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y1.sch b/library/SubcircuitLibrary/TC74HC4028AP/Y1.sch
new file mode 100644
index 000000000..8a315c74f
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y1.sch
@@ -0,0 +1,155 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Y0 X1
+U 1 1 6868C462
+P 5500 2950
+F 0 "X1" H 5500 3050 60  0000 C CNN
+F 1 "Y0" H 5450 2750 60  0000 C CNN
+F 2 "" H 5500 2950 60  0001 C CNN
+F 3 "" H 5500 2950 60  0001 C CNN
+	1    5500 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 6868C694
+P 4700 2850
+F 0 "U1" H 4750 2950 30  0000 C CNN
+F 1 "PORT" H 4700 2850 30  0000 C CNN
+F 2 "" H 4700 2850 60  0000 C CNN
+F 3 "" H 4700 2850 60  0000 C CNN
+	1    4700 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 6868C6F5
+P 4700 2950
+F 0 "U1" H 4750 3050 30  0000 C CNN
+F 1 "PORT" H 4700 2950 30  0000 C CNN
+F 2 "" H 4700 2950 60  0000 C CNN
+F 3 "" H 4700 2950 60  0000 C CNN
+	2    4700 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 6868C7FF
+P 4700 3050
+F 0 "U1" H 4750 3150 30  0000 C CNN
+F 1 "PORT" H 4700 3050 30  0000 C CNN
+F 2 "" H 4700 3050 60  0000 C CNN
+F 3 "" H 4700 3050 60  0000 C CNN
+	3    4700 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 6868C83E
+P 6300 2850
+F 0 "U1" H 6350 2950 30  0000 C CNN
+F 1 "PORT" H 6300 2850 30  0000 C CNN
+F 2 "" H 6300 2850 60  0000 C CNN
+F 3 "" H 6300 2850 60  0000 C CNN
+	5    6300 2850
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 6868C889
+P 6300 2950
+F 0 "U1" H 6350 3050 30  0000 C CNN
+F 1 "PORT" H 6300 2950 30  0000 C CNN
+F 2 "" H 6300 2950 60  0000 C CNN
+F 3 "" H 6300 2950 60  0000 C CNN
+	6    6300 2950
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 6868C8CC
+P 6300 3050
+F 0 "U1" H 6350 3150 30  0000 C CNN
+F 1 "PORT" H 6300 3050 30  0000 C CNN
+F 2 "" H 6300 3050 60  0000 C CNN
+F 3 "" H 6300 3050 60  0000 C CNN
+	7    6300 3050
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 6868C920
+P 5250 3300
+F 0 "U1" H 5300 3400 30  0000 C CNN
+F 1 "PORT" H 5250 3300 30  0000 C CNN
+F 2 "" H 5250 3300 60  0000 C CNN
+F 3 "" H 5250 3300 60  0000 C CNN
+	4    5250 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 6868C9C1
+P 7500 3100
+F 0 "scmode1" H 7500 3250 98  0000 C CNB
+F 1 "SKY130mode" H 7500 3000 118 0000 C CNB
+F 2 "" H 7500 3250 60  0001 C CNN
+F 3 "" H 7500 3250 60  0001 C CNN
+	1    7500 3100
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y1.sub b/library/SubcircuitLibrary/TC74HC4028AP/Y1.sub
new file mode 100644
index 000000000..f79c5f57c
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y1.sub
@@ -0,0 +1,11 @@
+* Subcircuit Y1
+.subckt Y1 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y1/y1.cir
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* Control Statements
+
+.ends Y1
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y1_Previous_Values.xml b/library/SubcircuitLibrary/TC74HC4028AP/Y1_Previous_Values.xml
new file mode 100644
index 000000000..73bfc204a
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y1_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y0</field></x1></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y2-cache.lib b/library/SubcircuitLibrary/TC74HC4028AP/Y2-cache.lib
new file mode 100644
index 000000000..25c3aaccc
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y2-cache.lib
@@ -0,0 +1,75 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# Y0
+#
+DEF Y0 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y0" -50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 150 350 -150 0 1 0 N
+X A_bar 1 -550 0 200 R 50 50 1 1 I
+X B_bar 2 -550 -100 200 R 50 50 1 1 I
+X Gnd 3 0 -350 200 U 50 50 1 1 I
+X Vdd 4 -550 100 200 R 50 50 1 1 I
+X Y0 5 550 -100 200 L 50 50 1 1 O
+X C_bar 6 550 100 200 L 50 50 1 1 I
+X D_bar 7 550 0 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y2.cir b/library/SubcircuitLibrary/TC74HC4028AP/Y2.cir
new file mode 100644
index 000000000..3d88cac72
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y2.cir
@@ -0,0 +1,13 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y2/Y2.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 12:27:26 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad7_ Net-_U1-Pad5_ Net-_U1-Pad6_ Y0		
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y2.cir.out b/library/SubcircuitLibrary/TC74HC4028AP/Y2.cir.out
new file mode 100644
index 000000000..f93fb21fc
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y2.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y2/y2.cir
+
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y2.pro b/library/SubcircuitLibrary/TC74HC4028AP/Y2.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y2.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y2.sch b/library/SubcircuitLibrary/TC74HC4028AP/Y2.sch
new file mode 100644
index 000000000..d3e74d8f7
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y2.sch
@@ -0,0 +1,155 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Y0 X1
+U 1 1 6868CC9E
+P 5150 3000
+F 0 "X1" H 5150 3100 60  0000 C CNN
+F 1 "Y0" H 5100 2800 60  0000 C CNN
+F 2 "" H 5150 3000 60  0001 C CNN
+F 3 "" H 5150 3000 60  0001 C CNN
+	1    5150 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 6868CD17
+P 6750 5150
+F 0 "scmode1" H 6750 5300 98  0000 C CNB
+F 1 "SKY130mode" H 6750 5050 118 0000 C CNB
+F 2 "" H 6750 5300 60  0001 C CNN
+F 3 "" H 6750 5300 60  0001 C CNN
+	1    6750 5150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 6868CD44
+P 4350 2900
+F 0 "U1" H 4400 3000 30  0000 C CNN
+F 1 "PORT" H 4350 2900 30  0000 C CNN
+F 2 "" H 4350 2900 60  0000 C CNN
+F 3 "" H 4350 2900 60  0000 C CNN
+	1    4350 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 6868CD67
+P 4350 3000
+F 0 "U1" H 4400 3100 30  0000 C CNN
+F 1 "PORT" H 4350 3000 30  0000 C CNN
+F 2 "" H 4350 3000 60  0000 C CNN
+F 3 "" H 4350 3000 60  0000 C CNN
+	2    4350 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 6868CD8C
+P 4350 3100
+F 0 "U1" H 4400 3200 30  0000 C CNN
+F 1 "PORT" H 4350 3100 30  0000 C CNN
+F 2 "" H 4350 3100 60  0000 C CNN
+F 3 "" H 4350 3100 60  0000 C CNN
+	3    4350 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 6868CDB5
+P 4900 3350
+F 0 "U1" H 4950 3450 30  0000 C CNN
+F 1 "PORT" H 4900 3350 30  0000 C CNN
+F 2 "" H 4900 3350 60  0000 C CNN
+F 3 "" H 4900 3350 60  0000 C CNN
+	4    4900 3350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 6868CDE4
+P 5950 2900
+F 0 "U1" H 6000 3000 30  0000 C CNN
+F 1 "PORT" H 5950 2900 30  0000 C CNN
+F 2 "" H 5950 2900 60  0000 C CNN
+F 3 "" H 5950 2900 60  0000 C CNN
+	5    5950 2900
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 6868CE31
+P 5950 3000
+F 0 "U1" H 6000 3100 30  0000 C CNN
+F 1 "PORT" H 5950 3000 30  0000 C CNN
+F 2 "" H 5950 3000 60  0000 C CNN
+F 3 "" H 5950 3000 60  0000 C CNN
+	6    5950 3000
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 6868CE5C
+P 5950 3100
+F 0 "U1" H 6000 3200 30  0000 C CNN
+F 1 "PORT" H 5950 3100 30  0000 C CNN
+F 2 "" H 5950 3100 60  0000 C CNN
+F 3 "" H 5950 3100 60  0000 C CNN
+	7    5950 3100
+	-1   0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y2.sub b/library/SubcircuitLibrary/TC74HC4028AP/Y2.sub
new file mode 100644
index 000000000..5980e933d
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y2.sub
@@ -0,0 +1,11 @@
+* Subcircuit Y2
+.subckt Y2 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y2/y2.cir
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* Control Statements
+
+.ends Y2
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y2_Previous_Values.xml b/library/SubcircuitLibrary/TC74HC4028AP/Y2_Previous_Values.xml
new file mode 100644
index 000000000..73bfc204a
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y2_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y0</field></x1></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y3-cache.lib b/library/SubcircuitLibrary/TC74HC4028AP/Y3-cache.lib
new file mode 100644
index 000000000..25c3aaccc
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y3-cache.lib
@@ -0,0 +1,75 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# Y0
+#
+DEF Y0 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y0" -50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 150 350 -150 0 1 0 N
+X A_bar 1 -550 0 200 R 50 50 1 1 I
+X B_bar 2 -550 -100 200 R 50 50 1 1 I
+X Gnd 3 0 -350 200 U 50 50 1 1 I
+X Vdd 4 -550 100 200 R 50 50 1 1 I
+X Y0 5 550 -100 200 L 50 50 1 1 O
+X C_bar 6 550 100 200 L 50 50 1 1 I
+X D_bar 7 550 0 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y3.bak b/library/SubcircuitLibrary/TC74HC4028AP/Y3.bak
new file mode 100644
index 000000000..e69de29bb
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y3.cir b/library/SubcircuitLibrary/TC74HC4028AP/Y3.cir
new file mode 100644
index 000000000..703e998d7
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y3.cir
@@ -0,0 +1,13 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y3/Y3.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 20:08:43 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad7_ Net-_U1-Pad5_ Net-_U1-Pad6_ Y0		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ PORT		
+scmode1  SKY130mode		
+
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y3.cir.out b/library/SubcircuitLibrary/TC74HC4028AP/Y3.cir.out
new file mode 100644
index 000000000..b4067166c
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y3.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y3/y3.cir
+
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ port
+* s c m o d e
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y3.pro b/library/SubcircuitLibrary/TC74HC4028AP/Y3.pro
new file mode 100644
index 000000000..354f24bb0
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y3.pro
@@ -0,0 +1,83 @@
+update=Sat Jul  5 20:07:25 2025
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
+[schematic_editor]
+version=1
+PageLayoutDescrFile=
+PlotDirectoryName=
+SubpartIdSeparator=0
+SubpartFirstId=65
+NetFmtName=
+SpiceForceRefPrefix=0
+SpiceUseNetNumbers=0
+LabSize=60
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y3.sch b/library/SubcircuitLibrary/TC74HC4028AP/Y3.sch
new file mode 100644
index 000000000..3269c1180
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y3.sch
@@ -0,0 +1,156 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+LIBS:Y3-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Y0 X1
+U 1 1 686938B4
+P 5750 2900
+F 0 "X1" H 5750 3000 60  0000 C CNN
+F 1 "Y0" H 5700 2700 60  0000 C CNN
+F 2 "" H 5750 2900 60  0001 C CNN
+F 3 "" H 5750 2900 60  0001 C CNN
+	1    5750 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 6869391A
+P 4950 2800
+F 0 "U1" H 5000 2900 30  0000 C CNN
+F 1 "PORT" H 4950 2800 30  0000 C CNN
+F 2 "" H 4950 2800 60  0000 C CNN
+F 3 "" H 4950 2800 60  0000 C CNN
+	1    4950 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68693963
+P 4950 2900
+F 0 "U1" H 5000 3000 30  0000 C CNN
+F 1 "PORT" H 4950 2900 30  0000 C CNN
+F 2 "" H 4950 2900 60  0000 C CNN
+F 3 "" H 4950 2900 60  0000 C CNN
+	2    4950 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68693984
+P 4950 3000
+F 0 "U1" H 5000 3100 30  0000 C CNN
+F 1 "PORT" H 4950 3000 30  0000 C CNN
+F 2 "" H 4950 3000 60  0000 C CNN
+F 3 "" H 4950 3000 60  0000 C CNN
+	3    4950 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 686939AB
+P 5500 3250
+F 0 "U1" H 5550 3350 30  0000 C CNN
+F 1 "PORT" H 5500 3250 30  0000 C CNN
+F 2 "" H 5500 3250 60  0000 C CNN
+F 3 "" H 5500 3250 60  0000 C CNN
+	4    5500 3250
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686939D6
+P 6550 2800
+F 0 "U1" H 6600 2900 30  0000 C CNN
+F 1 "PORT" H 6550 2800 30  0000 C CNN
+F 2 "" H 6550 2800 60  0000 C CNN
+F 3 "" H 6550 2800 60  0000 C CNN
+	5    6550 2800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 68693A27
+P 6550 2900
+F 0 "U1" H 6600 3000 30  0000 C CNN
+F 1 "PORT" H 6550 2900 30  0000 C CNN
+F 2 "" H 6550 2900 60  0000 C CNN
+F 3 "" H 6550 2900 60  0000 C CNN
+	6    6550 2900
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 68693A62
+P 6550 3000
+F 0 "U1" H 6600 3100 30  0000 C CNN
+F 1 "PORT" H 6550 3000 30  0000 C CNN
+F 2 "" H 6550 3000 60  0000 C CNN
+F 3 "" H 6550 3000 60  0000 C CNN
+	7    6550 3000
+	-1   0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 68693A89
+P 9150 2850
+F 0 "scmode1" H 9150 3000 98  0000 C CNB
+F 1 "SKY130mode" H 9150 2750 118 0000 C CNB
+F 2 "" H 9150 3000 60  0001 C CNN
+F 3 "" H 9150 3000 60  0001 C CNN
+	1    9150 2850
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y3.sub b/library/SubcircuitLibrary/TC74HC4028AP/Y3.sub
new file mode 100644
index 000000000..d0faae98f
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y3.sub
@@ -0,0 +1,11 @@
+* Subcircuit Y3
+.subckt Y3 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y3/y3.cir
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* Control Statements
+
+.ends Y3
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y3_Previous_Values.xml b/library/SubcircuitLibrary/TC74HC4028AP/Y3_Previous_Values.xml
new file mode 100644
index 000000000..73bfc204a
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y3_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y0</field></x1></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y4-cache.lib b/library/SubcircuitLibrary/TC74HC4028AP/Y4-cache.lib
new file mode 100644
index 000000000..25c3aaccc
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y4-cache.lib
@@ -0,0 +1,75 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# Y0
+#
+DEF Y0 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y0" -50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 150 350 -150 0 1 0 N
+X A_bar 1 -550 0 200 R 50 50 1 1 I
+X B_bar 2 -550 -100 200 R 50 50 1 1 I
+X Gnd 3 0 -350 200 U 50 50 1 1 I
+X Vdd 4 -550 100 200 R 50 50 1 1 I
+X Y0 5 550 -100 200 L 50 50 1 1 O
+X C_bar 6 550 100 200 L 50 50 1 1 I
+X D_bar 7 550 0 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y4.cir b/library/SubcircuitLibrary/TC74HC4028AP/Y4.cir
new file mode 100644
index 000000000..6531f8179
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y4.cir
@@ -0,0 +1,13 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y4/Y4.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 20:15:29 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad7_ Net-_U1-Pad5_ Net-_U1-Pad6_ Y0		
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y4.cir.out b/library/SubcircuitLibrary/TC74HC4028AP/Y4.cir.out
new file mode 100644
index 000000000..396911611
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y4.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y4/y4.cir
+
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y4.pro b/library/SubcircuitLibrary/TC74HC4028AP/Y4.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y4.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y4.sch b/library/SubcircuitLibrary/TC74HC4028AP/Y4.sch
new file mode 100644
index 000000000..5e954bb68
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y4.sch
@@ -0,0 +1,155 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Y0 X1
+U 1 1 68693A51
+P 5250 2700
+F 0 "X1" H 5250 2800 60  0000 C CNN
+F 1 "Y0" H 5200 2500 60  0000 C CNN
+F 2 "" H 5250 2700 60  0001 C CNN
+F 3 "" H 5250 2700 60  0001 C CNN
+	1    5250 2700
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 68693A90
+P 7800 4350
+F 0 "scmode1" H 7800 4500 98  0000 C CNB
+F 1 "SKY130mode" H 7800 4250 118 0000 C CNB
+F 2 "" H 7800 4500 60  0001 C CNN
+F 3 "" H 7800 4500 60  0001 C CNN
+	1    7800 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 68693ADF
+P 4450 2600
+F 0 "U1" H 4500 2700 30  0000 C CNN
+F 1 "PORT" H 4450 2600 30  0000 C CNN
+F 2 "" H 4450 2600 60  0000 C CNN
+F 3 "" H 4450 2600 60  0000 C CNN
+	1    4450 2600
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68693B14
+P 4450 2700
+F 0 "U1" H 4500 2800 30  0000 C CNN
+F 1 "PORT" H 4450 2700 30  0000 C CNN
+F 2 "" H 4450 2700 60  0000 C CNN
+F 3 "" H 4450 2700 60  0000 C CNN
+	2    4450 2700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68693B41
+P 4450 2800
+F 0 "U1" H 4500 2900 30  0000 C CNN
+F 1 "PORT" H 4450 2800 30  0000 C CNN
+F 2 "" H 4450 2800 60  0000 C CNN
+F 3 "" H 4450 2800 60  0000 C CNN
+	3    4450 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68693B62
+P 5000 3050
+F 0 "U1" H 5050 3150 30  0000 C CNN
+F 1 "PORT" H 5000 3050 30  0000 C CNN
+F 2 "" H 5000 3050 60  0000 C CNN
+F 3 "" H 5000 3050 60  0000 C CNN
+	4    5000 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 68693BF5
+P 6050 2600
+F 0 "U1" H 6100 2700 30  0000 C CNN
+F 1 "PORT" H 6050 2600 30  0000 C CNN
+F 2 "" H 6050 2600 60  0000 C CNN
+F 3 "" H 6050 2600 60  0000 C CNN
+	5    6050 2600
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 68693C68
+P 6050 2700
+F 0 "U1" H 6100 2800 30  0000 C CNN
+F 1 "PORT" H 6050 2700 30  0000 C CNN
+F 2 "" H 6050 2700 60  0000 C CNN
+F 3 "" H 6050 2700 60  0000 C CNN
+	6    6050 2700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 68693C95
+P 6050 2800
+F 0 "U1" H 6100 2900 30  0000 C CNN
+F 1 "PORT" H 6050 2800 30  0000 C CNN
+F 2 "" H 6050 2800 60  0000 C CNN
+F 3 "" H 6050 2800 60  0000 C CNN
+	7    6050 2800
+	-1   0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y4.sub b/library/SubcircuitLibrary/TC74HC4028AP/Y4.sub
new file mode 100644
index 000000000..efafa72ed
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y4.sub
@@ -0,0 +1,11 @@
+* Subcircuit Y4
+.subckt Y4 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y4/y4.cir
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* Control Statements
+
+.ends Y4
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y4_Previous_Values.xml b/library/SubcircuitLibrary/TC74HC4028AP/Y4_Previous_Values.xml
new file mode 100644
index 000000000..73bfc204a
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y4_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y0</field></x1></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y5-cache.lib b/library/SubcircuitLibrary/TC74HC4028AP/Y5-cache.lib
new file mode 100644
index 000000000..25c3aaccc
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y5-cache.lib
@@ -0,0 +1,75 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# Y0
+#
+DEF Y0 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y0" -50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 150 350 -150 0 1 0 N
+X A_bar 1 -550 0 200 R 50 50 1 1 I
+X B_bar 2 -550 -100 200 R 50 50 1 1 I
+X Gnd 3 0 -350 200 U 50 50 1 1 I
+X Vdd 4 -550 100 200 R 50 50 1 1 I
+X Y0 5 550 -100 200 L 50 50 1 1 O
+X C_bar 6 550 100 200 L 50 50 1 1 I
+X D_bar 7 550 0 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y5.cir b/library/SubcircuitLibrary/TC74HC4028AP/Y5.cir
new file mode 100644
index 000000000..48276daf8
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y5.cir
@@ -0,0 +1,13 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y5/Y5.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 20:21:17 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad7_ Net-_U1-Pad5_ Net-_U1-Pad6_ Y0		
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y5.cir.out b/library/SubcircuitLibrary/TC74HC4028AP/Y5.cir.out
new file mode 100644
index 000000000..be0c2ec7e
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y5.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y5/y5.cir
+
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y5.pro b/library/SubcircuitLibrary/TC74HC4028AP/Y5.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y5.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y5.sch b/library/SubcircuitLibrary/TC74HC4028AP/Y5.sch
new file mode 100644
index 000000000..1bda8a005
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y5.sch
@@ -0,0 +1,155 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Y0 X1
+U 1 1 68693B83
+P 5200 2800
+F 0 "X1" H 5200 2900 60  0000 C CNN
+F 1 "Y0" H 5150 2600 60  0000 C CNN
+F 2 "" H 5200 2800 60  0001 C CNN
+F 3 "" H 5200 2800 60  0001 C CNN
+	1    5200 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 68693C06
+P 6700 4100
+F 0 "scmode1" H 6700 4250 98  0000 C CNB
+F 1 "SKY130mode" H 6700 4000 118 0000 C CNB
+F 2 "" H 6700 4250 60  0001 C CNN
+F 3 "" H 6700 4250 60  0001 C CNN
+	1    6700 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 68693C2D
+P 4400 2700
+F 0 "U1" H 4450 2800 30  0000 C CNN
+F 1 "PORT" H 4400 2700 30  0000 C CNN
+F 2 "" H 4400 2700 60  0000 C CNN
+F 3 "" H 4400 2700 60  0000 C CNN
+	1    4400 2700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68693CBD
+P 4400 2800
+F 0 "U1" H 4450 2900 30  0000 C CNN
+F 1 "PORT" H 4400 2800 30  0000 C CNN
+F 2 "" H 4400 2800 60  0000 C CNN
+F 3 "" H 4400 2800 60  0000 C CNN
+	2    4400 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68693CF0
+P 4400 2900
+F 0 "U1" H 4450 3000 30  0000 C CNN
+F 1 "PORT" H 4400 2900 30  0000 C CNN
+F 2 "" H 4400 2900 60  0000 C CNN
+F 3 "" H 4400 2900 60  0000 C CNN
+	3    4400 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68693D1D
+P 4950 3150
+F 0 "U1" H 5000 3250 30  0000 C CNN
+F 1 "PORT" H 4950 3150 30  0000 C CNN
+F 2 "" H 4950 3150 60  0000 C CNN
+F 3 "" H 4950 3150 60  0000 C CNN
+	4    4950 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 68693D50
+P 6000 2700
+F 0 "U1" H 6050 2800 30  0000 C CNN
+F 1 "PORT" H 6000 2700 30  0000 C CNN
+F 2 "" H 6000 2700 60  0000 C CNN
+F 3 "" H 6000 2700 60  0000 C CNN
+	5    6000 2700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 68693D9F
+P 6000 2800
+F 0 "U1" H 6050 2900 30  0000 C CNN
+F 1 "PORT" H 6000 2800 30  0000 C CNN
+F 2 "" H 6000 2800 60  0000 C CNN
+F 3 "" H 6000 2800 60  0000 C CNN
+	6    6000 2800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 68693DDE
+P 6000 2900
+F 0 "U1" H 6050 3000 30  0000 C CNN
+F 1 "PORT" H 6000 2900 30  0000 C CNN
+F 2 "" H 6000 2900 60  0000 C CNN
+F 3 "" H 6000 2900 60  0000 C CNN
+	7    6000 2900
+	-1   0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y5.sub b/library/SubcircuitLibrary/TC74HC4028AP/Y5.sub
new file mode 100644
index 000000000..0cddbd9e0
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y5.sub
@@ -0,0 +1,11 @@
+* Subcircuit Y5
+.subckt Y5 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y5/y5.cir
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* Control Statements
+
+.ends Y5
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y5_Previous_Values.xml b/library/SubcircuitLibrary/TC74HC4028AP/Y5_Previous_Values.xml
new file mode 100644
index 000000000..73bfc204a
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y5_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y0</field></x1></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y6-cache.lib b/library/SubcircuitLibrary/TC74HC4028AP/Y6-cache.lib
new file mode 100644
index 000000000..25c3aaccc
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y6-cache.lib
@@ -0,0 +1,75 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# Y0
+#
+DEF Y0 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y0" -50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 150 350 -150 0 1 0 N
+X A_bar 1 -550 0 200 R 50 50 1 1 I
+X B_bar 2 -550 -100 200 R 50 50 1 1 I
+X Gnd 3 0 -350 200 U 50 50 1 1 I
+X Vdd 4 -550 100 200 R 50 50 1 1 I
+X Y0 5 550 -100 200 L 50 50 1 1 O
+X C_bar 6 550 100 200 L 50 50 1 1 I
+X D_bar 7 550 0 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y6.cir b/library/SubcircuitLibrary/TC74HC4028AP/Y6.cir
new file mode 100644
index 000000000..4306bb477
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y6.cir
@@ -0,0 +1,13 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y6/Y6.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 20:24:47 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad7_ Net-_U1-Pad5_ Net-_U1-Pad6_ Y0		
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y6.cir.out b/library/SubcircuitLibrary/TC74HC4028AP/Y6.cir.out
new file mode 100644
index 000000000..cfd954565
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y6.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y6/y6.cir
+
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y6.pro b/library/SubcircuitLibrary/TC74HC4028AP/Y6.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y6.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y6.sch b/library/SubcircuitLibrary/TC74HC4028AP/Y6.sch
new file mode 100644
index 000000000..ebd6439df
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y6.sch
@@ -0,0 +1,155 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Y0 X1
+U 1 1 68693C8D
+P 5400 2950
+F 0 "X1" H 5400 3050 60  0000 C CNN
+F 1 "Y0" H 5350 2750 60  0000 C CNN
+F 2 "" H 5400 2950 60  0001 C CNN
+F 3 "" H 5400 2950 60  0001 C CNN
+	1    5400 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 68693CCE
+P 7500 4750
+F 0 "scmode1" H 7500 4900 98  0000 C CNB
+F 1 "SKY130mode" H 7500 4650 118 0000 C CNB
+F 2 "" H 7500 4900 60  0001 C CNN
+F 3 "" H 7500 4900 60  0001 C CNN
+	1    7500 4750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 68693CF3
+P 4600 2850
+F 0 "U1" H 4650 2950 30  0000 C CNN
+F 1 "PORT" H 4600 2850 30  0000 C CNN
+F 2 "" H 4600 2850 60  0000 C CNN
+F 3 "" H 4600 2850 60  0000 C CNN
+	1    4600 2850
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68693D2E
+P 4600 2950
+F 0 "U1" H 4650 3050 30  0000 C CNN
+F 1 "PORT" H 4600 2950 30  0000 C CNN
+F 2 "" H 4600 2950 60  0000 C CNN
+F 3 "" H 4600 2950 60  0000 C CNN
+	2    4600 2950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68693D85
+P 4600 3050
+F 0 "U1" H 4650 3150 30  0000 C CNN
+F 1 "PORT" H 4600 3050 30  0000 C CNN
+F 2 "" H 4600 3050 60  0000 C CNN
+F 3 "" H 4600 3050 60  0000 C CNN
+	3    4600 3050
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68693DB6
+P 5150 3300
+F 0 "U1" H 5200 3400 30  0000 C CNN
+F 1 "PORT" H 5150 3300 30  0000 C CNN
+F 2 "" H 5150 3300 60  0000 C CNN
+F 3 "" H 5150 3300 60  0000 C CNN
+	4    5150 3300
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 68693DE1
+P 6200 2850
+F 0 "U1" H 6250 2950 30  0000 C CNN
+F 1 "PORT" H 6200 2850 30  0000 C CNN
+F 2 "" H 6200 2850 60  0000 C CNN
+F 3 "" H 6200 2850 60  0000 C CNN
+	5    6200 2850
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 68693E34
+P 6200 2950
+F 0 "U1" H 6250 3050 30  0000 C CNN
+F 1 "PORT" H 6200 2950 30  0000 C CNN
+F 2 "" H 6200 2950 60  0000 C CNN
+F 3 "" H 6200 2950 60  0000 C CNN
+	6    6200 2950
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 68693E67
+P 6200 3050
+F 0 "U1" H 6250 3150 30  0000 C CNN
+F 1 "PORT" H 6200 3050 30  0000 C CNN
+F 2 "" H 6200 3050 60  0000 C CNN
+F 3 "" H 6200 3050 60  0000 C CNN
+	7    6200 3050
+	-1   0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y6.sub b/library/SubcircuitLibrary/TC74HC4028AP/Y6.sub
new file mode 100644
index 000000000..e6bd24004
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y6.sub
@@ -0,0 +1,11 @@
+* Subcircuit Y6
+.subckt Y6 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y6/y6.cir
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* Control Statements
+
+.ends Y6
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y6_Previous_Values.xml b/library/SubcircuitLibrary/TC74HC4028AP/Y6_Previous_Values.xml
new file mode 100644
index 000000000..d866ca8a0
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y6_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y0</field></x1></subcircuit><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y7-cache.lib b/library/SubcircuitLibrary/TC74HC4028AP/Y7-cache.lib
new file mode 100644
index 000000000..25c3aaccc
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y7-cache.lib
@@ -0,0 +1,75 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# Y0
+#
+DEF Y0 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y0" -50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 150 350 -150 0 1 0 N
+X A_bar 1 -550 0 200 R 50 50 1 1 I
+X B_bar 2 -550 -100 200 R 50 50 1 1 I
+X Gnd 3 0 -350 200 U 50 50 1 1 I
+X Vdd 4 -550 100 200 R 50 50 1 1 I
+X Y0 5 550 -100 200 L 50 50 1 1 O
+X C_bar 6 550 100 200 L 50 50 1 1 I
+X D_bar 7 550 0 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y7.cir b/library/SubcircuitLibrary/TC74HC4028AP/Y7.cir
new file mode 100644
index 000000000..aefcdacd5
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y7.cir
@@ -0,0 +1,13 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y7/Y7.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 20:29:26 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad7_ Net-_U1-Pad5_ Net-_U1-Pad6_ Y0		
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y7.cir.out b/library/SubcircuitLibrary/TC74HC4028AP/Y7.cir.out
new file mode 100644
index 000000000..572724c1d
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y7.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y7/y7.cir
+
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y7.pro b/library/SubcircuitLibrary/TC74HC4028AP/Y7.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y7.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y7.sch b/library/SubcircuitLibrary/TC74HC4028AP/Y7.sch
new file mode 100644
index 000000000..f3a0ae254
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y7.sch
@@ -0,0 +1,155 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Y0 X1
+U 1 1 68693DA4
+P 5150 2800
+F 0 "X1" H 5150 2900 60  0000 C CNN
+F 1 "Y0" H 5100 2600 60  0000 C CNN
+F 2 "" H 5150 2800 60  0001 C CNN
+F 3 "" H 5150 2800 60  0001 C CNN
+	1    5150 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 68693DE1
+P 7650 4100
+F 0 "scmode1" H 7650 4250 98  0000 C CNB
+F 1 "SKY130mode" H 7650 4000 118 0000 C CNB
+F 2 "" H 7650 4250 60  0001 C CNN
+F 3 "" H 7650 4250 60  0001 C CNN
+	1    7650 4100
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 68693E14
+P 4350 2700
+F 0 "U1" H 4400 2800 30  0000 C CNN
+F 1 "PORT" H 4350 2700 30  0000 C CNN
+F 2 "" H 4350 2700 60  0000 C CNN
+F 3 "" H 4350 2700 60  0000 C CNN
+	1    4350 2700
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68693EFE
+P 4350 2800
+F 0 "U1" H 4400 2900 30  0000 C CNN
+F 1 "PORT" H 4350 2800 30  0000 C CNN
+F 2 "" H 4350 2800 60  0000 C CNN
+F 3 "" H 4350 2800 60  0000 C CNN
+	2    4350 2800
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68693F27
+P 4350 2900
+F 0 "U1" H 4400 3000 30  0000 C CNN
+F 1 "PORT" H 4350 2900 30  0000 C CNN
+F 2 "" H 4350 2900 60  0000 C CNN
+F 3 "" H 4350 2900 60  0000 C CNN
+	3    4350 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68693F4A
+P 4900 3150
+F 0 "U1" H 4950 3250 30  0000 C CNN
+F 1 "PORT" H 4900 3150 30  0000 C CNN
+F 2 "" H 4900 3150 60  0000 C CNN
+F 3 "" H 4900 3150 60  0000 C CNN
+	4    4900 3150
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 68693F8D
+P 5950 2700
+F 0 "U1" H 6000 2800 30  0000 C CNN
+F 1 "PORT" H 5950 2700 30  0000 C CNN
+F 2 "" H 5950 2700 60  0000 C CNN
+F 3 "" H 5950 2700 60  0000 C CNN
+	5    5950 2700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 6 1 68693FB6
+P 5950 2800
+F 0 "U1" H 6000 2900 30  0000 C CNN
+F 1 "PORT" H 5950 2800 30  0000 C CNN
+F 2 "" H 5950 2800 60  0000 C CNN
+F 3 "" H 5950 2800 60  0000 C CNN
+	6    5950 2800
+	-1   0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 7 1 68693FDF
+P 5950 2900
+F 0 "U1" H 6000 3000 30  0000 C CNN
+F 1 "PORT" H 5950 2900 30  0000 C CNN
+F 2 "" H 5950 2900 60  0000 C CNN
+F 3 "" H 5950 2900 60  0000 C CNN
+	7    5950 2900
+	-1   0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y7.sub b/library/SubcircuitLibrary/TC74HC4028AP/Y7.sub
new file mode 100644
index 000000000..19b5cc503
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y7.sub
@@ -0,0 +1,11 @@
+* Subcircuit Y7
+.subckt Y7 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y7/y7.cir
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* Control Statements
+
+.ends Y7
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y7_Previous_Values.xml b/library/SubcircuitLibrary/TC74HC4028AP/Y7_Previous_Values.xml
new file mode 100644
index 000000000..73bfc204a
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y7_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y0</field></x1></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y8-cache.lib b/library/SubcircuitLibrary/TC74HC4028AP/Y8-cache.lib
new file mode 100644
index 000000000..25c3aaccc
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y8-cache.lib
@@ -0,0 +1,75 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# Y0
+#
+DEF Y0 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y0" -50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 150 350 -150 0 1 0 N
+X A_bar 1 -550 0 200 R 50 50 1 1 I
+X B_bar 2 -550 -100 200 R 50 50 1 1 I
+X Gnd 3 0 -350 200 U 50 50 1 1 I
+X Vdd 4 -550 100 200 R 50 50 1 1 I
+X Y0 5 550 -100 200 L 50 50 1 1 O
+X C_bar 6 550 100 200 L 50 50 1 1 I
+X D_bar 7 550 0 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y8.cir b/library/SubcircuitLibrary/TC74HC4028AP/Y8.cir
new file mode 100644
index 000000000..388978510
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y8.cir
@@ -0,0 +1,13 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y8/Y8.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 20:33:21 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad7_ Net-_U1-Pad5_ Net-_U1-Pad6_ Y0		
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y8.cir.out b/library/SubcircuitLibrary/TC74HC4028AP/Y8.cir.out
new file mode 100644
index 000000000..b5965c648
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y8.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y8/y8.cir
+
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y8.pro b/library/SubcircuitLibrary/TC74HC4028AP/Y8.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y8.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y8.sch b/library/SubcircuitLibrary/TC74HC4028AP/Y8.sch
new file mode 100644
index 000000000..cee28fe81
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y8.sch
@@ -0,0 +1,155 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Y0 X1
+U 1 1 68693E7E
+P 4900 2650
+F 0 "X1" H 4900 2750 60  0000 C CNN
+F 1 "Y0" H 4850 2450 60  0000 C CNN
+F 2 "" H 4900 2650 60  0001 C CNN
+F 3 "" H 4900 2650 60  0001 C CNN
+	1    4900 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 68693ED9
+P 8650 4350
+F 0 "scmode1" H 8650 4500 98  0000 C CNB
+F 1 "SKY130mode" H 8650 4250 118 0000 C CNB
+F 2 "" H 8650 4500 60  0001 C CNN
+F 3 "" H 8650 4500 60  0001 C CNN
+	1    8650 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 68693F20
+P 4100 2550
+F 0 "U1" H 4150 2650 30  0000 C CNN
+F 1 "PORT" H 4100 2550 30  0000 C CNN
+F 2 "" H 4100 2550 60  0000 C CNN
+F 3 "" H 4100 2550 60  0000 C CNN
+	1    4100 2550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68693F57
+P 4100 2650
+F 0 "U1" H 4150 2750 30  0000 C CNN
+F 1 "PORT" H 4100 2650 30  0000 C CNN
+F 2 "" H 4100 2650 60  0000 C CNN
+F 3 "" H 4100 2650 60  0000 C CNN
+	2    4100 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 68693F80
+P 4100 2750
+F 0 "U1" H 4150 2850 30  0000 C CNN
+F 1 "PORT" H 4100 2750 30  0000 C CNN
+F 2 "" H 4100 2750 60  0000 C CNN
+F 3 "" H 4100 2750 60  0000 C CNN
+	3    4100 2750
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 68693FAF
+P 4650 3000
+F 0 "U1" H 4700 3100 30  0000 C CNN
+F 1 "PORT" H 4650 3000 30  0000 C CNN
+F 2 "" H 4650 3000 60  0000 C CNN
+F 3 "" H 4650 3000 60  0000 C CNN
+	4    4650 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 68693FE8
+P 5700 2550
+F 0 "U1" H 5750 2650 30  0000 C CNN
+F 1 "PORT" H 5700 2550 30  0000 C CNN
+F 2 "" H 5700 2550 60  0000 C CNN
+F 3 "" H 5700 2550 60  0000 C CNN
+	5    5700 2550
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 6 1 68694305
+P 5700 2650
+F 0 "U1" H 5750 2750 30  0000 C CNN
+F 1 "PORT" H 5700 2650 30  0000 C CNN
+F 2 "" H 5700 2650 60  0000 C CNN
+F 3 "" H 5700 2650 60  0000 C CNN
+	6    5700 2650
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 7 1 68694342
+P 5700 2750
+F 0 "U1" H 5750 2850 30  0000 C CNN
+F 1 "PORT" H 5700 2750 30  0000 C CNN
+F 2 "" H 5700 2750 60  0000 C CNN
+F 3 "" H 5700 2750 60  0000 C CNN
+	7    5700 2750
+	-1   0    0    1   
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y8.sub b/library/SubcircuitLibrary/TC74HC4028AP/Y8.sub
new file mode 100644
index 000000000..b85b7c552
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y8.sub
@@ -0,0 +1,11 @@
+* Subcircuit Y8
+.subckt Y8 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y8/y8.cir
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* Control Statements
+
+.ends Y8
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y8_Previous_Values.xml b/library/SubcircuitLibrary/TC74HC4028AP/Y8_Previous_Values.xml
new file mode 100644
index 000000000..73bfc204a
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y8_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y0</field></x1></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y9-cache.lib b/library/SubcircuitLibrary/TC74HC4028AP/Y9-cache.lib
new file mode 100644
index 000000000..25c3aaccc
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y9-cache.lib
@@ -0,0 +1,75 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# SKY130mode
+#
+DEF SKY130mode scmode 0 40 Y Y 1 F N
+F0 "scmode" 0 150 98 H V C CNB
+F1 "SKY130mode" 0 -100 118 H V C CNB
+F2 "" 0 150 60 H I C CNN
+F3 "" 0 150 60 H I C CNN
+DRAW
+S -600 350 600 -350 0 1 79 N
+ENDDRAW
+ENDDEF
+#
+# Y0
+#
+DEF Y0 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y0" -50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 150 350 -150 0 1 0 N
+X A_bar 1 -550 0 200 R 50 50 1 1 I
+X B_bar 2 -550 -100 200 R 50 50 1 1 I
+X Gnd 3 0 -350 200 U 50 50 1 1 I
+X Vdd 4 -550 100 200 R 50 50 1 1 I
+X Y0 5 550 -100 200 L 50 50 1 1 O
+X C_bar 6 550 100 200 L 50 50 1 1 I
+X D_bar 7 550 0 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y9.cir b/library/SubcircuitLibrary/TC74HC4028AP/Y9.cir
new file mode 100644
index 000000000..a2b2c1bac
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y9.cir
@@ -0,0 +1,13 @@
+* /home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y9/Y9.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sat Jul  5 20:37:19 2025
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+X1  Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad1_ Net-_U1-Pad7_ Net-_U1-Pad5_ Net-_U1-Pad6_ Y0		
+scmode1  SKY130mode		
+U1  Net-_U1-Pad1_ Net-_U1-Pad2_ Net-_U1-Pad3_ Net-_U1-Pad4_ Net-_U1-Pad5_ Net-_U1-Pad6_ Net-_U1-Pad7_ PORT		
+
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y9.cir.out b/library/SubcircuitLibrary/TC74HC4028AP/Y9.cir.out
new file mode 100644
index 000000000..2ab60d530
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y9.cir.out
@@ -0,0 +1,17 @@
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y9/y9.cir
+
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* u1  net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements 
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y9.pro b/library/SubcircuitLibrary/TC74HC4028AP/Y9.pro
new file mode 100644
index 000000000..e27a398be
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y9.pro
@@ -0,0 +1,73 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=eSim_Plot
+LibName23=transistors
+LibName24=conn
+LibName25=eSim_User
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_Nghdl
+LibName38=eSim_Ngveri
+LibName39=eSim_SKY130
+LibName40=eSim_SKY130_Subckts
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y9.sch b/library/SubcircuitLibrary/TC74HC4028AP/Y9.sch
new file mode 100644
index 000000000..9102285ea
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y9.sch
@@ -0,0 +1,155 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:eSim_Plot
+LIBS:transistors
+LIBS:conn
+LIBS:eSim_User
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:eSim_Ngveri
+LIBS:eSim_SKY130
+LIBS:eSim_SKY130_Subckts
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Y0 X1
+U 1 1 68693F7B
+P 4700 2550
+F 0 "X1" H 4700 2650 60  0000 C CNN
+F 1 "Y0" H 4650 2350 60  0000 C CNN
+F 2 "" H 4700 2550 60  0001 C CNN
+F 3 "" H 4700 2550 60  0001 C CNN
+	1    4700 2550
+	1    0    0    -1  
+$EndComp
+$Comp
+L SKY130mode scmode1
+U 1 1 68693FB8
+P 8250 3950
+F 0 "scmode1" H 8250 4100 98  0000 C CNB
+F 1 "SKY130mode" H 8250 3850 118 0000 C CNB
+F 2 "" H 8250 4100 60  0001 C CNN
+F 3 "" H 8250 4100 60  0001 C CNN
+	1    8250 3950
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 1 1 68693FFF
+P 3900 2450
+F 0 "U1" H 3950 2550 30  0000 C CNN
+F 1 "PORT" H 3900 2450 30  0000 C CNN
+F 2 "" H 3900 2450 60  0000 C CNN
+F 3 "" H 3900 2450 60  0000 C CNN
+	1    3900 2450
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 2 1 68694048
+P 3900 2550
+F 0 "U1" H 3950 2650 30  0000 C CNN
+F 1 "PORT" H 3900 2550 30  0000 C CNN
+F 2 "" H 3900 2550 60  0000 C CNN
+F 3 "" H 3900 2550 60  0000 C CNN
+	2    3900 2550
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 3 1 6869406D
+P 3900 2650
+F 0 "U1" H 3950 2750 30  0000 C CNN
+F 1 "PORT" H 3900 2650 30  0000 C CNN
+F 2 "" H 3900 2650 60  0000 C CNN
+F 3 "" H 3900 2650 60  0000 C CNN
+	3    3900 2650
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 4 1 6869409C
+P 4450 2900
+F 0 "U1" H 4500 3000 30  0000 C CNN
+F 1 "PORT" H 4450 2900 30  0000 C CNN
+F 2 "" H 4450 2900 60  0000 C CNN
+F 3 "" H 4450 2900 60  0000 C CNN
+	4    4450 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L PORT U1
+U 5 1 686940CF
+P 5500 2450
+F 0 "U1" H 5550 2550 30  0000 C CNN
+F 1 "PORT" H 5500 2450 30  0000 C CNN
+F 2 "" H 5500 2450 60  0000 C CNN
+F 3 "" H 5500 2450 60  0000 C CNN
+	5    5500 2450
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 6 1 68694132
+P 5500 2550
+F 0 "U1" H 5550 2650 30  0000 C CNN
+F 1 "PORT" H 5500 2550 30  0000 C CNN
+F 2 "" H 5500 2550 60  0000 C CNN
+F 3 "" H 5500 2550 60  0000 C CNN
+	6    5500 2550
+	-1   0    0    1   
+$EndComp
+$Comp
+L PORT U1
+U 7 1 68694173
+P 5500 2650
+F 0 "U1" H 5550 2750 30  0000 C CNN
+F 1 "PORT" H 5500 2650 30  0000 C CNN
+F 2 "" H 5500 2650 60  0000 C CNN
+F 3 "" H 5500 2650 60  0000 C CNN
+	7    5500 2650
+	-1   0    0    1   
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y9.sub b/library/SubcircuitLibrary/TC74HC4028AP/Y9.sub
new file mode 100644
index 000000000..5449a8396
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y9.sub
@@ -0,0 +1,11 @@
+* Subcircuit Y9
+.subckt Y9 net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ 
+* /home/vsduser/downloads/esim-2.3/library/subcircuitlibrary/y9/y9.cir
+.include Y0.sub
+*.lib "/usr/share/local/sky130_fd_pr/models/sky130.lib.spice" tt
+
+x1 net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad1_ net-_u1-pad7_ net-_u1-pad5_ net-_u1-pad6_ Y0
+* s c m o d e
+* Control Statements
+
+.ends Y9
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/Y9_Previous_Values.xml b/library/SubcircuitLibrary/TC74HC4028AP/Y9_Previous_Values.xml
new file mode 100644
index 000000000..73bfc204a
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/Y9_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><scmode1><field>/usr/share/local/sky130_fd_pr/models/sky130.lib.spice</field><field>tt</field></scmode1></devicemodel><subcircuit><x1><field>/home/vsduser/Downloads/eSim-2.3/library/SubcircuitLibrary/Y0</field></x1></subcircuit></KicadtoNgspice>
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/TC74HC4028AP/analysis b/library/SubcircuitLibrary/TC74HC4028AP/analysis
new file mode 100644
index 000000000..ebd5c0a94
--- /dev/null
+++ b/library/SubcircuitLibrary/TC74HC4028AP/analysis
@@ -0,0 +1 @@
+.tran 0e-00 0e-00 0e-00
\ No newline at end of file
diff --git a/library/SubcircuitLibrary/eSim_Subckt.lib b/library/SubcircuitLibrary/eSim_Subckt.lib
index 56cddf041..d17bd344d 100644
--- a/library/SubcircuitLibrary/eSim_Subckt.lib
+++ b/library/SubcircuitLibrary/eSim_Subckt.lib
@@ -1,1186 +1,1697 @@
-EESchema-LIBRARY Version 2.3
-#encoding utf-8
-#
-# 10bitDAC
-#
-DEF 10bitDAC X 0 40 Y Y 1 F N
-F0 "X" 0 50 60 H V C CNN
-F1 "10bitDAC" -50 -50 60 H V C CNN
-F2 "" 0 50 60 H I C CNN
-F3 "" 0 50 60 H I C CNN
-DRAW
-S -500 500 400 -600 0 1 0 N
-X D0 1 -700 -500 200 R 50 50 1 1 I
-X D1 2 -700 -400 200 R 50 50 1 1 I
-X D2 3 -700 -300 200 R 50 50 1 1 I
-X D3 4 -700 -200 200 R 50 50 1 1 I
-X D4 5 -700 -100 200 R 50 50 1 1 I
-X D5 6 -700 0 200 R 50 50 1 1 I
-X D6 7 -700 100 200 R 50 50 1 1 I
-X D7 8 -700 200 200 R 50 50 1 1 I
-X D8 9 -700 300 200 R 50 50 1 1 I
-X D9 10 -700 400 200 R 50 50 1 1 I
-X AnalogOut 11 600 350 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# 2BITMUL
-#
-DEF 2BITMUL X 0 40 Y Y 1 F N
-F0 "X" 0 0 60 H V C CNN
-F1 "2BITMUL" 0 0 60 H V C CNN
-F2 "" 0 0 60 H I C CNN
-F3 "" 0 0 60 H I C CNN
-DRAW
-S -300 400 300 -400 0 1 0 N
-X A0 1 -500 300 200 R 50 50 1 1 I
-X A1 2 -500 150 200 R 50 50 1 1 I
-X B0 3 -500 -50 200 R 50 50 1 1 I
-X B1 4 -500 -250 200 R 50 50 1 1 I
-X M0 5 500 250 200 L 50 50 1 1 O
-X M1 6 500 100 200 L 50 50 1 1 O
-X M2 7 500 -50 200 L 50 50 1 1 O
-X M3 8 500 -250 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# 3_and
-#
-DEF 3_and X 0 40 Y Y 1 F N
-F0 "X" 100 -50 60 H V C CNN
-F1 "3_and" 150 150 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-A 150 50 158 716 -716 0 1 0 N 200 200 200 -100
-P 2 0 1 0 -150 200 200 200 N
-P 3 0 1 0 -150 200 -150 -100 200 -100 N
-X in1 1 -350 150 200 R 50 50 1 1 I
-X in2 2 -350 50 200 R 50 50 1 1 I
-X in3 3 -350 -50 200 R 50 50 1 1 I
-X out 4 500 50 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# 4_OR
-#
-DEF 4_OR X 0 40 Y Y 1 F N
-F0 "X" 150 -100 60 H V C CNN
-F1 "4_OR" 150 100 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-A -800 0 650 226 -226 0 1 0 N -200 250 -200 -250
-A -73 134 444 -599 -176 0 1 0 N 150 -250 350 0
-A -30 -99 393 627 146 0 1 0 N 150 250 350 0
-P 2 0 1 0 -200 -250 150 -250 N
-P 2 0 1 0 -200 250 150 250 N
-X in1 1 -350 150 200 R 50 50 1 1 I
-X in2 2 -350 50 200 R 50 50 1 1 I
-X in3 3 -350 -50 200 R 50 50 1 1 I
-X in4 4 -350 -150 200 R 50 50 1 1 I
-X out 5 550 0 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# 4_and
-#
-DEF 4_and X 0 40 Y Y 1 F N
-F0 "X" 50 -50 60 H V C CNN
-F1 "4_and" 100 100 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-A 100 0 206 760 -760 0 1 0 N 150 200 150 -200
-P 2 0 1 0 -200 200 150 200 N
-P 4 0 1 0 -200 200 -200 -200 50 -200 150 -200 N
-X in1 1 -400 150 200 R 50 50 1 1 I
-X in2 2 -400 50 200 R 50 50 1 1 I
-X in3 3 -400 -50 200 R 50 50 1 1 I
-X in4 4 -400 -150 200 R 50 50 1 1 I
-X out 5 500 0 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# 556
-#
-DEF 556 X 0 40 Y Y 1 F N
-F0 "X" 0 0 60 H V C CNN
-F1 "556" 0 0 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-S -300 400 250 -550 0 1 0 N
-X dis1 1 -500 150 200 R 50 50 1 1 I
-X thr1 2 -500 -150 200 R 50 50 1 1 I
-X cv1 3 -150 -750 200 U 50 50 1 1 I
-X rst1 4 -200 600 200 D 50 50 1 1 I
-X out1 5 -500 0 200 R 50 50 1 1 O
-X trig1 6 -500 -300 200 R 50 50 1 1 I
-X gnd 7 0 -750 200 U 50 50 1 1 I
-X trig2 8 450 -300 200 L 50 50 1 1 I
-X out2 9 450 0 200 L 50 50 1 1 O
-X rst2 10 100 600 200 D 50 50 1 1 I
-X cv2 11 150 -750 200 U 50 50 1 1 I
-X thr2 12 450 -150 200 L 50 50 1 1 I
-X dis2 13 450 150 200 L 50 50 1 1 I
-X vcc 14 -50 600 200 D 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# 5_and
-#
-DEF 5_and X 0 40 Y Y 1 F N
-F0 "X" 50 -100 60 H V C CNN
-F1 "5_and" 100 150 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-A 100 0 255 787 -787 0 1 0 N 150 250 150 -250
-P 2 0 1 0 -250 250 150 250 N
-P 3 0 1 0 -250 250 -250 -250 150 -250 N
-X in1 1 -450 200 200 R 50 50 1 1 I
-X in2 2 -450 100 200 R 50 50 1 1 I
-X in3 3 -450 0 200 R 50 50 1 1 I
-X in4 4 -450 -100 200 R 50 50 1 1 I
-X in5 5 -450 -200 200 R 50 50 1 1 I
-X out 6 550 0 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# 74HC194
-#
-DEF 74HC194 X 0 40 Y Y 1 F N
-F0 "X" 50 300 60 H V C CNN
-F1 "74HC194" 50 550 60 H V C CNN
-F2 "" 50 300 60 H I C CNN
-F3 "" 50 300 60 H I C CNN
-DRAW
-A 0 1350 100 -1799 -1 0 1 0 N -100 1350 100 1350
-S -400 1350 450 -750 0 1 0 N
-X MR_bar 1 -600 1200 200 R 50 50 1 1 I
-X DSR 2 -600 950 200 R 50 50 1 1 I
-X D0 3 -600 700 200 R 50 50 1 1 I
-X D1 4 -600 450 200 R 50 50 1 1 I
-X D2 5 -600 200 200 R 50 50 1 1 I
-X D3 6 -600 -50 200 R 50 50 1 1 I
-X DSL 7 -600 -300 200 R 50 50 1 1 I
-X GND 8 -600 -550 200 R 50 50 1 1 I
-X S0 9 650 -550 200 L 50 50 1 1 I
-X S1 10 650 -300 200 L 50 50 1 1 I
-X CP 11 650 -50 200 L 50 50 1 1 I
-X Q3 12 650 200 200 L 50 50 1 1 O
-X Q2 13 650 450 200 L 50 50 1 1 O
-X Q1 14 650 700 200 L 50 50 1 1 O
-X Q0 15 650 950 200 L 50 50 1 1 O
-X VCC 16 650 1200 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# AN1186
-#
-DEF AN1186 X 0 40 Y Y 1 F N
-F0 "X" 0 -100 60 H V C CNN
-F1 "AN1186" -50 400 60 H V C CNN
-F2 "" -50 400 60 H I C CNN
-F3 "" -50 400 60 H I C CNN
-DRAW
-S -350 350 250 -350 0 1 0 N
-X Clk 1 -550 300 200 R 50 50 1 1 I
-X rst 2 -550 200 200 R 50 50 1 1 I
-X data_in 3 -550 100 200 R 50 50 1 1 I
-X q0 4 -550 0 200 R 50 50 1 1 O
-X q1 5 -550 -100 200 R 50 50 1 1 O
-X q2 6 -550 -200 200 R 50 50 1 1 O
-X Gnd 7 -550 -300 200 R 50 50 1 1 I
-X q3 8 450 -300 200 L 50 50 1 1 O
-X q4 9 450 -200 200 L 50 50 1 1 O
-X q5 10 450 -100 200 L 50 50 1 1 O
-X q6 11 450 0 200 L 50 50 1 1 O
-X q7 12 450 100 200 L 50 50 1 1 O
-X NC 13 450 200 200 L 50 50 1 1 I
-X Vcc 14 450 300 200 L 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# AN1186_CRC
-#
-DEF AN1186_CRC U 0 40 Y Y 1 F N
-F0 "U" 0 -100 60 H V C CNN
-F1 "AN1186_CRC" -50 400 60 H V C CNN
-F2 "" -50 400 60 H I C CNN
-F3 "" -50 400 60 H I C CNN
-DRAW
-S -350 350 250 -350 0 1 0 N
-X Clk 1 -550 300 200 R 50 50 1 1 I
-X rst 2 -550 200 200 R 50 50 1 1 I
-X data_in 3 -550 100 200 R 50 50 1 1 I
-X q0 4 -550 0 200 R 50 50 1 1 O
-X q1 5 -550 -100 200 R 50 50 1 1 O
-X q2 6 -550 -200 200 R 50 50 1 1 O
-X Gnd 7 -550 -300 200 R 50 50 1 1 I
-X q3 8 450 -300 200 L 50 50 1 1 O
-X q4 9 450 -200 200 L 50 50 1 1 O
-X q5 10 450 -100 200 L 50 50 1 1 O
-X q6 11 450 0 200 L 50 50 1 1 O
-X q7 12 450 100 200 L 50 50 1 1 O
-X NC 13 450 200 200 L 50 50 1 1 I
-X Vcc 14 450 300 200 L 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# AN1186_CRC_Gen
-#
-DEF AN1186_CRC_Gen X 0 40 Y Y 1 F N
-F0 "X" 0 -100 60 H V C CNN
-F1 "AN1186_CRC_Gen" 0 400 60 H V C CNN
-F2 "" 0 -100 60 H I C CNN
-F3 "" 0 -100 60 H I C CNN
-DRAW
-S -300 350 250 -400 0 1 0 N
-X Clk 1 -500 250 200 R 50 50 1 1 I
-X Rst 2 -500 150 200 R 50 50 1 1 I
-X Data_in 3 -500 50 200 R 50 50 1 1 I
-X q0 4 -500 -50 200 R 50 50 1 1 O
-X q1 5 -500 -150 200 R 50 50 1 1 O
-X q2 6 -500 -250 200 R 50 50 1 1 O
-X Gnd 7 -500 -350 200 R 50 50 1 1 I
-X q3 8 450 -350 200 L 50 50 1 1 O
-X q4 9 450 -250 200 L 50 50 1 1 O
-X q5 10 450 -150 200 L 50 50 1 1 O
-X q6 11 450 -50 200 L 50 50 1 1 O
-X q7 12 450 50 200 L 50 50 1 1 O
-X NC 13 450 150 200 L 50 50 1 1 I
-X Vcc 14 450 250 200 L 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# Bidirectional_switch
-#
-DEF Bidirectional_switch X 0 40 Y Y 1 F N
-F0 "X" -150 -200 60 H V C CNN
-F1 "Bidirectional_switch" 50 0 60 H V C CNN
-F2 "" 50 0 60 H I C CNN
-F3 "" 50 0 60 H I C CNN
-DRAW
-P 2 0 1 0 150 -250 500 -250 N
-P 3 0 1 0 -400 -250 -100 -250 150 -100 N
-X ~ 1 -550 -250 200 R 50 50 1 1 B
-X ~ 2 700 -250 200 L 50 50 1 1 B
-X ~ 3 -100 -450 200 U 50 50 1 1 B
-ENDDRAW
-ENDDEF
-#
-# CBTL02043A
-#
-DEF CBTL02043A X 0 40 Y Y 1 F N
-F0 "X" 1550 750 60 H V C CNN
-F1 "CBTL02043A" 1550 850 60 H V C CNN
-F2 "" 1550 850 60 H I C CNN
-F3 "" 1550 850 60 H I C CNN
-DRAW
-S 1200 800 1850 -250 0 1 0 N
-X Vdd 1 1000 700 200 R 50 50 1 1 I
-X XSD 2 1000 600 200 R 50 50 1 1 I
-X A0_P 3 1000 500 200 R 50 50 1 1 B
-X A0_N 4 1000 400 200 R 50 50 1 1 B
-X GND 5 1000 300 200 R 50 50 1 1 I
-X Vdd 6 1000 200 200 R 50 50 1 1 I
-X A1_P 7 1000 100 200 R 50 50 1 1 B
-X A1_N 8 1000 0 200 R 50 50 1 1 B
-X SEL 9 1000 -100 200 R 50 50 1 1 I
-X VDD 10 1000 -200 200 R 50 50 1 1 I
-X GND 20 2050 700 200 L 50 50 1 1 I
-X GND 11 2050 -200 200 L 50 50 1 1 I
-X C1_N 12 2050 -100 200 L 50 50 1 1 B
-X C1_P 13 2050 0 200 L 50 50 1 1 B
-X C0_N 14 2050 100 200 L 50 50 1 1 B
-X C0_P 15 2050 200 200 L 50 50 1 1 B
-X B1_N 16 2050 300 200 L 50 50 1 1 B
-X B1_P 17 2050 400 200 L 50 50 1 1 B
-X B0_N 18 2050 500 200 L 50 50 1 1 B
-X B0_P 19 2050 600 200 L 50 50 1 1 B
-ENDDRAW
-ENDDEF
-#
-# CD4048BMS
-#
-DEF CD4048BMS X 0 40 Y Y 1 F N
-F0 "X" 0 300 60 H V C CNN
-F1 "CD4048BMS" -50 950 60 H V C CNN
-F2 "" -50 950 60 H I C CNN
-F3 "" -50 950 60 H I C CNN
-DRAW
-S -450 900 400 -300 0 1 0 N
-X J(O/P) 1 -650 800 200 R 50 50 1 1 O
-X Kd 2 -650 650 200 R 50 50 1 1 I
-X H 3 -650 500 200 R 50 50 1 1 I
-X G 4 -650 350 200 R 50 50 1 1 I
-X F 5 -650 200 200 R 50 50 1 1 I
-X E 6 -650 50 200 R 50 50 1 1 I
-X Kb 7 -650 -100 200 R 50 50 1 1 I
-X VSS 8 -650 -250 200 R 50 50 1 1 I
-X Kc 9 600 -250 200 L 50 50 1 1 I
-X Ka 10 600 -100 200 L 50 50 1 1 I
-X D 11 600 50 200 L 50 50 1 1 I
-X C 12 600 200 200 L 50 50 1 1 I
-X B 13 600 350 200 L 50 50 1 1 I
-X A 14 600 500 200 L 50 50 1 1 I
-X Expand 15 600 650 200 L 50 50 1 1 I
-X VDD 16 600 800 200 L 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# CMOS_NAND
-#
-DEF CMOS_NAND X 0 40 Y Y 1 F N
-F0 "X" -100 -150 60 H V C CNN
-F1 "CMOS_NAND" 0 -50 60 H V C CNN
-F2 "" 0 0 60 H I C CNN
-F3 "" 0 0 60 H I C CNN
-DRAW
-A 150 -50 381 668 -668 0 1 0 N 300 300 300 -400
-C 550 0 50 0 1 0 N
-P 2 0 1 0 -350 300 300 300 N
-P 3 0 1 0 -350 300 -350 -400 300 -400 N
-X in1 1 -550 250 200 R 50 50 1 1 I
-X in2 2 -550 -300 200 R 50 50 1 1 I
-X out 3 800 0 279 L 79 79 1 1 I
-ENDDRAW
-ENDDEF
-#
-# Clock_pulse_generator
-#
-DEF Clock_pulse_generator X 0 40 Y Y 1 F N
-F0 "X" 0 0 60 H V C CNN
-F1 "Clock_pulse_generator" 0 -100 60 H V C CNN
-F2 "" 0 0 60 H I C CNN
-F3 "" 0 0 60 H I C CNN
-DRAW
-S -550 200 600 -300 0 1 0 N
-X Vdd 1 -750 100 200 R 50 50 1 1 I
-X R 2 -750 -50 200 R 50 50 1 1 I
-X C 3 -750 -200 200 R 50 50 1 1 I
-X Clkout 4 800 0 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# DFF
-#
-DEF DFF X 0 40 Y Y 1 F N
-F0 "X" 0 0 60 H V C CNN
-F1 "DFF" 0 100 60 H V C CNN
-F2 "" 0 0 60 H I C CNN
-F3 "" 0 0 60 H I C CNN
-DRAW
-S -550 750 550 -500 0 1 0 N
-X D 1 -750 550 200 R 50 50 1 1 I
-X CLK 2 -750 -250 200 R 50 50 1 1 I
-X SET 3 0 950 200 D 50 50 1 1 I
-X RESET 4 0 -700 200 U 50 50 1 1 I
-X Q 5 750 550 200 L 50 50 1 1 O
-X Q_bar 6 750 -250 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# IC-LM3900
-#
-DEF IC-LM3900 X 0 40 Y Y 1 F N
-F0 "X" 0 -300 60 H V C CNN
-F1 "IC-LM3900" 0 -200 60 H V C CNN
-F2 "" 0 -200 60 H I C CNN
-F3 "" 0 -200 60 H I C CNN
-DRAW
-A -1200 -100 150 -899 899 0 0 0 N -1200 -250 -1200 50
-T 0 -550 -500 60 0 0 0 + Normal 0 C C
-T 0 -550 50 60 0 0 0 + Normal 0 C C
-T 0 750 -300 60 0 0 0 + Normal 0 C C
-T 0 750 250 60 0 0 0 + Normal 0 C C
-T 0 -550 -250 60 0 0 0 - Normal 0 C C
-T 0 -550 300 60 0 0 0 - Normal 0 C C
-T 0 750 -500 60 0 0 0 - Normal 0 C C
-T 0 750 50 60 0 0 0 - Normal 0 C C
-T 0 650 -400 60 0 0 0 1 Normal 0 C C
-T 0 -450 -400 60 0 0 0 2 Normal 0 C C
-T 0 650 150 60 0 0 0 3 Normal 0 C C
-T 0 -450 150 60 0 0 0 4 Normal 0 C C
-S -1200 750 1150 -1050 0 0 0 N
-P 3 0 0 0 -600 -550 -650 -550 -650 -800 N
-P 3 0 0 0 -200 -400 50 -400 50 -800 N
-P 3 0 0 0 400 -400 350 -400 350 -800 N
-P 3 0 0 0 800 0 950 0 950 500 N
-P 5 0 0 0 -600 -250 -800 -250 -800 -700 -300 -700 -300 -800 N
-P 5 0 0 0 -600 0 -800 0 -800 400 -300 400 -300 500 N
-P 5 0 0 0 -600 300 -700 300 -700 450 50 450 50 500 N
-P 5 0 0 0 -200 150 150 150 150 450 350 450 350 500 N
-P 5 0 0 0 400 150 250 150 250 400 650 400 650 500 N
-P 5 0 0 0 800 -550 900 -550 900 -750 650 -750 650 -800 N
-P 5 0 0 0 800 -250 950 -250 950 -650 -950 -650 -950 -800 N
-P 6 0 0 0 800 300 1000 300 1000 -100 -1000 -100 -1000 500 -650 500 N
-C -600 -400 71 0 1 0 N
-C -600 150 71 0 1 0 N
-C 800 -400 71 0 1 0 N
-C 800 150 71 0 1 0 N
-P 4 0 1 0 -650 -350 -600 -450 -550 -350 -650 -350 N
-P 4 0 1 0 -650 200 -600 100 -550 200 -650 200 N
-P 4 0 1 0 -600 -200 -600 -600 -200 -400 -600 -200 N
-P 4 0 1 0 -600 350 -600 -50 -200 150 -600 350 N
-P 4 0 1 0 800 -600 800 -200 400 -400 800 -600 N
-P 4 0 1 0 800 -50 800 350 400 150 800 -50 N
-P 4 0 1 0 850 -450 800 -350 750 -450 850 -450 N
-P 4 0 1 0 850 100 800 200 750 100 850 100 N
-X IN1+ 1 -950 -1250 200 U 50 50 1 1 I
-X IN2+ 2 -650 -1250 200 U 50 50 1 1 I
-X IN2- 3 -300 -1250 200 U 50 50 1 1 I
-X OUT2 4 50 -1250 200 U 50 50 1 1 O
-X OUT1 5 350 -1250 200 U 50 50 1 1 O
-X IN1- 6 650 -1250 200 U 50 50 1 1 I
-X GND 7 950 -1250 200 U 50 50 1 1 I
-X IN3- 8 950 950 200 D 50 50 1 1 I
-X OUT3 9 650 950 200 D 50 50 1 1 O
-X OUT4 10 350 950 200 D 50 50 1 1 O
-X IN4- 11 50 950 200 D 50 50 1 1 I
-X IN4+ 12 -300 950 200 D 50 50 1 1 I
-X IN3+ 13 -650 950 200 D 50 50 1 1 I
-X VCC 14 -950 950 200 D 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# IC_4002
-#
-DEF IC_4002 X 0 40 Y Y 1 F N
-F0 "X" 0 150 60 H V C CNN
-F1 "IC_4002" 0 0 60 H V C CNN
-F2 "" 50 -150 60 H V C CNN
-F3 "" 50 -150 60 H V C CNN
-DRAW
-S -250 350 250 -400 0 1 0 N
-X 1Y 1 -450 250 200 R 50 50 1 1 O
-X 1A 2 -450 150 200 R 50 50 1 1 I
-X 1B 3 -450 50 200 R 50 50 1 1 I
-X 1C 4 -450 -50 200 R 50 50 1 1 I
-X 1D 5 -450 -150 200 R 50 50 1 1 I
-X NC 6 -450 -250 200 R 50 50 1 1 I
-X GND 7 -450 -350 200 R 50 50 1 1 I
-X NC 8 450 -350 200 L 50 50 1 1 I
-X 2A 9 450 -250 200 L 50 50 1 1 I
-X 2B 10 450 -150 200 L 50 50 1 1 I
-X 2C 11 450 -50 200 L 50 50 1 1 I
-X 2D 12 450 50 200 L 50 50 1 1 I
-X 2Y 13 450 150 200 L 50 50 1 1 O
-X VCC 14 450 250 200 L 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# IC_4012
-#
-DEF IC_4012 X 0 40 Y Y 1 F N
-F0 "X" 0 0 60 H V C CNN
-F1 "IC_4012" 0 200 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-S -300 400 350 -400 0 1 0 N
-X Q1 1 -500 300 200 R 50 50 1 1 O
-X A1 2 -500 200 200 R 50 50 1 1 I
-X B1 3 -500 100 200 R 50 50 1 1 I
-X C1 4 -500 0 200 R 50 50 1 1 I
-X D1 5 -500 -100 200 R 50 50 1 1 I
-X NC 6 -500 -200 200 R 50 50 1 1 N
-X VSS 7 -500 -300 200 R 50 50 1 1 I
-X NC 8 550 -300 200 L 50 50 1 1 N
-X A2 9 550 -200 200 L 50 50 1 1 I
-X B2 10 550 -100 200 L 50 50 1 1 I
-X C2 11 550 0 200 L 50 50 1 1 I
-X D2 12 550 100 200 L 50 50 1 1 I
-X Q2 13 550 200 200 L 50 50 1 1 O
-X VDD 14 550 300 200 L 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# IC_4017
-#
-DEF IC_4017 X 0 40 Y Y 1 F N
-F0 "X" 0 0 60 H V C CNN
-F1 "IC_4017" 0 0 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-S -350 850 400 -850 0 1 0 N
-X 1 1 600 650 200 L 50 50 1 1 O
-X 2 2 600 500 200 L 50 50 1 1 O
-X 3 3 600 350 200 L 50 50 1 1 O
-X 4 4 600 200 200 L 50 50 1 1 O
-X 5 5 600 50 200 L 50 50 1 1 O
-X 6 6 600 -100 200 L 50 50 1 1 O
-X 7 7 600 -250 200 L 50 50 1 1 O
-X 8 8 600 -400 200 L 50 50 1 1 O
-X 9 9 600 -600 200 L 50 50 1 1 O
-X 10 10 600 -750 200 L 50 50 1 1 O
-X RST 11 -550 -400 200 R 50 50 1 1 I
-X CLK 12 -550 350 200 R 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# IC_4023
-#
-DEF IC_4023 X 0 40 Y Y 1 F N
-F0 "X" 0 -100 60 H V C CNN
-F1 "IC_4023" 0 100 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-S -300 450 300 -450 0 1 0 N
-X A1 1 -500 300 200 R 50 50 1 1 I
-X B1 2 -500 200 200 R 50 50 1 1 I
-X A2 3 -500 100 200 R 50 50 1 1 I
-X B2 4 -500 0 200 R 50 50 1 1 I
-X C2 5 -500 -100 200 R 50 50 1 1 I
-X Q2 6 -500 -200 200 R 50 50 1 1 O
-X Vss 7 -500 -300 200 R 50 50 1 1 I
-X C1 8 500 -300 200 L 50 50 1 1 I
-X Q1 9 500 -200 200 L 50 50 1 1 O
-X Q3 10 500 -100 200 L 50 50 1 1 O
-X C3 11 500 0 200 L 50 50 1 1 I
-X B3 12 500 100 200 L 50 50 1 1 I
-X A3 13 500 200 200 L 50 50 1 1 I
-X Vdd 14 500 300 200 L 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# IC_4028
-#
-DEF IC_4028 X 0 40 Y Y 1 F N
-F0 "X" 0 -100 60 H V C CNN
-F1 "IC_4028" 0 50 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-S -300 450 300 -450 0 1 0 N
-X Q4 1 -500 350 200 R 50 50 1 1 O
-X Q2 2 -500 250 200 R 50 50 1 1 O
-X Q0 3 -500 150 200 R 50 50 1 1 O
-X Q7 4 -500 50 200 R 50 50 1 1 O
-X Q9 5 -500 -50 200 R 50 50 1 1 O
-X Q5 6 -500 -150 200 R 50 50 1 1 O
-X Q6 7 -500 -250 200 R 50 50 1 1 O
-X Vss 8 -500 -350 200 R 50 50 1 1 I
-X Q8 9 500 -350 200 L 50 50 1 1 O
-X A0 10 500 -250 200 L 50 50 1 1 I
-X A3 11 500 -150 200 L 50 50 1 1 I
-X A2 12 500 -50 200 L 50 50 1 1 I
-X A1 13 500 50 200 L 50 50 1 1 I
-X Q1 14 500 150 200 L 50 50 1 1 O
-X Q3 15 500 250 200 L 50 50 1 1 O
-X Vdd 16 500 350 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# IC_4073
-#
-DEF IC_4073 X 0 40 Y Y 1 F N
-F0 "X" 0 -100 60 H V C CNN
-F1 "IC_4073" 0 50 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-S -300 400 300 -400 0 1 0 N
-X A1 1 -500 300 200 R 50 50 1 1 I
-X B1 2 -500 200 200 R 50 50 1 1 I
-X A2 3 -500 100 200 R 50 50 1 1 I
-X B2 4 -500 0 200 R 50 50 1 1 I
-X C2 5 -500 -100 200 R 50 50 1 1 I
-X Q2 6 -500 -200 200 R 50 50 1 1 O
-X Vss 7 -500 -300 200 R 50 50 1 1 I
-X C1 8 500 -300 200 L 50 50 1 1 I
-X Q1 9 500 -200 200 L 50 50 1 1 O
-X Q3 10 500 -100 200 L 50 50 1 1 O
-X A3 11 500 0 200 L 50 50 1 1 I
-X B3 12 500 100 200 L 50 50 1 1 I
-X C3 13 500 200 200 L 50 50 1 1 I
-X Vdd 14 500 300 200 L 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# IC_74153
-#
-DEF IC_74153 X 0 40 Y Y 1 F N
-F0 "X" 100 50 60 H V C CNN
-F1 "IC_74153" 100 150 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-T 0 100 -200 60 0 0 0 4:1 Normal 0 C C
-T 0 100 -100 60 0 0 0 DUAL Normal 0 C C
-T 0 100 -300 60 0 0 0 MUX Normal 0 C C
-S -200 500 350 -550 0 1 0 N
-X a0 1 -400 350 200 R 50 50 1 1 I
-X a1 2 -400 250 200 R 50 50 1 1 I
-X a2 3 -400 150 200 R 50 50 1 1 I
-X a3 4 -400 50 200 R 50 50 1 1 I
-X EA 5 0 700 200 D 50 50 1 1 I I
-X b0 6 -400 -150 200 R 50 50 1 1 I
-X b1 7 -400 -250 200 R 50 50 1 1 I
-X b2 8 -400 -350 200 R 50 50 1 1 I
-X b3 9 -400 -450 200 R 50 50 1 1 I
-X EB 10 200 700 200 D 50 50 1 1 I I
-X s1 11 50 -750 200 U 50 50 1 1 I
-X s0 12 150 -750 200 U 50 50 1 1 I
-X ya 13 550 250 200 L 50 50 1 1 O
-X yb 14 550 -300 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# IC_74154
-#
-DEF IC_74154 X 0 40 Y Y 1 F N
-F0 "X" 0 -200 60 H V C CNN
-F1 "IC_74154" 50 -50 60 H V C CNN
-F2 "" 0 50 60 H V C CNN
-F3 "" 0 50 60 H V C CNN
-DRAW
-T 0 0 400 60 0 0 0 4:16~ Normal 0 C C
-T 0 0 250 60 0 0 0 decoder Normal 0 C C
-S -350 700 400 -700 0 0 0 N
-X ~Y0 1 -550 550 200 R 50 50 1 1 O I
-X ~Y1 2 -550 450 200 R 50 50 1 1 O I
-X ~Y2 3 -550 350 200 R 50 50 1 1 O I
-X ~Y3 4 -550 250 200 R 50 50 1 1 O I
-X ~Y4 5 -550 150 200 R 50 50 1 1 O I
-X ~Y5 6 -550 50 200 R 50 50 1 1 O I
-X ~Y6 7 -550 -50 200 R 50 50 1 1 O I
-X ~Y7 8 -550 -150 200 R 50 50 1 1 O I
-X ~Y8 9 -550 -250 200 R 50 50 1 1 O I
-X ~Y9 10 -550 -350 200 R 50 50 1 1 O I
-X A3 20 600 150 200 L 50 50 1 1 I
-X ~Y10 11 -550 -450 200 R 50 50 1 1 O I
-X A2 21 600 250 200 L 50 50 1 1 I
-X GND 12 -550 -550 200 R 50 50 1 1 I
-X A1 22 600 350 200 L 50 50 1 1 I
-X ~Y11 13 600 -550 200 L 50 50 1 1 O I
-X A0 23 600 450 200 L 50 50 1 1 I
-X ~Y12 14 600 -450 200 L 50 50 1 1 O I
-X Vcc 24 600 550 200 L 50 50 1 1 I
-X ~Y13 15 600 -350 200 L 50 50 1 1 O I
-X ~Y14 16 600 -250 200 L 50 50 1 1 O I
-X ~Y15 17 600 -150 200 L 50 50 1 1 O I
-X ~E0 18 600 -50 200 L 50 50 1 1 I I
-X ~E1 19 600 50 200 L 50 50 1 1 I I
-ENDDRAW
-ENDDEF
-#
-# IC_74157
-#
-DEF IC_74157 X 0 40 Y Y 1 F N
-F0 "X" 50 -50 60 H V C CNN
-F1 "IC_74157" 50 100 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-T 0 50 -300 60 0 0 0 2:1 Normal 0 C C
-T 0 50 -400 60 0 0 0 MUX Normal 0 C C
-T 0 50 -200 60 0 0 0 QUAD Normal 0 C C
-S -350 550 400 -650 0 1 0 N
-X a0 1 -550 450 200 R 50 50 1 1 I
-X a1 2 -550 300 200 R 50 50 1 1 I
-X b0 3 -550 200 200 R 50 50 1 1 I
-X b1 4 -550 100 200 R 50 50 1 1 I
-X c0 5 -550 0 200 R 50 50 1 1 I
-X c1 6 -550 -100 200 R 50 50 1 1 I
-X d0 7 -550 -200 200 R 50 50 1 1 I
-X d1 8 -550 -300 200 R 50 50 1 1 I
-X EN 9 -550 -550 200 R 50 50 1 1 I I
-X S 10 -550 -450 200 R 50 50 1 1 I
-X Yd 11 600 0 200 L 50 50 1 1 O
-X Ya 12 600 300 200 L 50 50 1 1 O
-X Yb 13 600 200 200 L 50 50 1 1 O
-X Yc 14 600 100 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# IC_7485
-#
-DEF IC_7485 X 0 40 Y Y 1 F N
-F0 "X" -50 -100 60 H V C CNN
-F1 "IC_7485" -50 50 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-T 0 0 550 60 0 0 0 4~BIT~comparator Normal 0 C C
-S -350 450 400 -400 0 1 0 N
-X A<B(in) 1 600 -100 200 L 50 50 1 1 I
-X A=B(in) 2 600 -200 200 L 50 50 1 1 I
-X A>B(in) 3 600 -300 200 L 50 50 1 1 I
-X A3 4 -550 100 200 R 50 50 1 1 I
-X B3 5 -550 -350 200 R 50 50 1 1 I
-X A2 6 -550 200 200 R 50 50 1 1 I
-X B2 7 -550 -250 200 R 50 50 1 1 I
-X A1 8 -550 300 200 R 50 50 1 1 I
-X B1 9 -550 -150 200 R 50 50 1 1 I
-X A0 10 -550 400 200 R 50 50 1 1 I
-X B0 11 -550 -50 200 R 50 50 1 1 I
-X A>B(out) 12 600 350 200 L 50 50 1 1 O
-X A=B(out) 13 600 250 200 L 50 50 1 1 O
-X A<B(out) 14 600 150 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# IC_LM3900
-#
-DEF IC_LM3900 X 0 40 Y Y 1 F N
-F0 "X" 4050 -2350 60 H V C CNN
-F1 "IC_LM3900" 4050 -2350 60 H V C CNN
-F2 "" 4050 -2350 60 H I C CNN
-F3 "" 4050 -2350 60 H I C CNN
-DRAW
-C 3650 -2350 112 0 1 0 N
-P 4 0 1 0 3550 -2300 3650 -2450 3750 -2300 3550 -2300 N
-P 5 0 1 0 3650 -2000 3650 -2700 4650 -2350 3650 -2000 3650 -2350 N
-X IN- 1 3450 -2100 200 R 50 50 1 1 I
-X IN+ 2 3450 -2600 200 R 50 50 1 1 I
-X OUT 3 4850 -2350 200 L 50 50 1 1 O
-X VCC 4 3950 -1900 200 D 50 50 1 1 I
-X GND 5 3950 -2800 200 U 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# INVCMOS
-#
-DEF INVCMOS X 0 40 Y Y 1 F N
-F0 "X" 0 0 60 H V C CNN
-F1 "INVCMOS" -450 150 60 H V C CNN
-F2 "" 0 0 60 H I C CNN
-F3 "" 0 0 60 H I C CNN
-DRAW
-C 400 0 112 0 1 0 N
-S -250 200 -250 -200 0 1 0 N
-P 3 0 1 0 -250 200 300 0 -250 -200 N
-X in 1 -450 0 200 R 50 50 1 1 P
-X out 2 700 0 200 L 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# LM3900
-#
-DEF LM3900 X 0 40 Y Y 1 F N
-F0 "X" 0 0 60 H V C CNN
-F1 "LM3900" 0 0 60 H V C CNN
-F2 "" 0 0 60 H I C CNN
-F3 "" 0 0 60 H I C CNN
-DRAW
-S -750 550 -750 550 0 1 0 N
-S -750 800 750 -1150 0 1 0 N
-X VCC 1 -950 550 200 R 50 50 1 1 I
-X GND 2 -950 -800 200 R 50 50 1 1 I
-X IN+ 3 -950 150 200 R 50 50 1 1 I
-X IN- 4 -950 -350 200 R 50 50 1 1 I
-X OUT 5 950 -100 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# LM555N
-#
-DEF LM555N X 0 40 Y Y 1 F N
-F0 "X" 0 -50 60 H V C CNN
-F1 "LM555N" 0 100 60 H V C CNN
-F2 "" -50 0 60 H V C CNN
-F3 "" -50 0 60 H V C CNN
-DRAW
-S 350 -400 -350 400 0 1 0 N
-X GND 1 0 -600 200 U 50 50 1 1 W
-X TR 2 -550 250 200 R 50 50 1 1 I
-X Q 3 550 250 200 L 50 50 1 1 O
-X R 4 -550 -250 200 R 50 50 1 1 I I
-X CV 5 -550 0 200 R 50 50 1 1 I
-X THR 6 550 -250 200 L 50 50 1 1 I
-X DIS 7 550 0 200 L 50 50 1 1 I
-X VCC 8 0 600 200 D 50 50 1 1 W
-ENDDRAW
-ENDDEF
-#
-# LM_7812
-#
-DEF LM_7812 X 0 40 Y Y 1 F N
-F0 "X" 0 50 60 H V C CNN
-F1 "LM_7812" 0 150 60 H V C CNN
-F2 "" 0 0 60 H I C CNN
-F3 "" 0 0 60 H I C CNN
-DRAW
-S -350 200 350 -200 0 1 0 N
-X IN 1 -550 0 200 R 50 50 1 1 I
-X GND 2 0 -400 200 U 50 50 1 1 I
-X OUT 3 550 0 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# Lm_7805
-#
-DEF Lm_7805 X 0 40 Y Y 1 F N
-F0 "X" 0 0 60 H V C CNN
-F1 "Lm_7805" 50 150 60 H V C CNN
-F2 "" 0 0 60 H I C CNN
-F3 "" 0 0 60 H I C CNN
-DRAW
-S -350 100 350 -200 0 1 0 N
-X Vin 1 -550 0 200 R 50 50 1 1 P
-X GND 2 0 -400 200 U 50 50 1 1 P
-X Vout 3 550 0 200 L 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Registered_transciever_IC
-#
-DEF Registered_transciever_IC X 0 40 Y Y 1 F N
-F0 "X" 0 0 60 H V C CNN
-F1 "Registered_transciever_IC" 50 300 60 H V C CNN
-F2 "" 50 300 60 H I C CNN
-F3 "" 50 300 60 H I C CNN
-DRAW
-S -600 250 650 -250 0 1 0 N
-X Din 1 -800 150 200 R 50 50 1 1 I
-X Oeab 2 -800 50 200 R 50 50 1 1 I
-X Clkab 3 -800 -150 200 R 50 50 1 1 I
-X Leab 4 -800 -50 200 R 50 50 1 1 I
-X Out 5 850 0 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# SCR
-#
-DEF SCR X 0 10 Y N 1 F N
-F0 "X" 150 200 50 H V C CNN
-F1 "SCR" 150 -350 50 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-P 2 0 0 0 -200 -150 200 -150 N
-P 2 0 1 0 0 -150 -200 -400 N
-P 3 0 1 0 -150 100 150 100 0 -150 F
-X A 1 0 400 300 D 60 60 1 1 I
-X K 2 0 -550 400 U 60 70 1 1 I
-X G 3 -350 -400 150 R 60 60 1 1 I
-ENDDRAW
-ENDDEF
-#
-# SN54LS385
-#
-DEF SN54LS385 X 0 40 Y Y 1 F N
-F0 "X" -150 -200 60 H V C CNN
-F1 "SN54LS385" -200 0 60 H V C CNN
-F2 "" -200 0 60 H I C CNN
-F3 "" -200 0 60 H I C CNN
-DRAW
-S -900 1100 450 -1700 0 1 0 N
-X A 1 -1100 700 200 R 50 50 1 1 I
-X B 2 -1100 150 200 R 50 50 1 1 I
-X A_S 3 -1100 -400 200 R 50 50 1 1 I
-X CLK 4 -1100 -900 200 R 50 50 1 1 I
-X CLR 5 -1100 -1450 200 R 50 50 1 1 I
-X Sum 6 650 -150 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# SN74100
-#
-DEF SN74100 X 0 40 Y Y 1 F N
-F0 "X" -250 50 60 H V C CNN
-F1 "SN74100" -250 900 60 H V C CNN
-F2 "" -250 900 60 H I C CNN
-F3 "" -250 900 60 H I C CNN
-DRAW
-A -250 850 50 -1799 -1 0 1 0 N -300 850 -200 850
-S -550 850 50 -950 0 1 0 N
-X NC 1 -750 750 200 R 50 50 1 1 I
-X 1D1 2 -750 600 200 R 50 50 1 1 I
-X 1D2 3 -750 450 200 R 50 50 1 1 I
-X 1Q2 4 -750 300 200 R 50 50 1 1 O
-X 1Q1 5 -750 150 200 R 50 50 1 1 O
-X NC 6 -750 0 200 R 50 50 1 1 I
-X GND 7 -750 -150 200 R 50 50 1 1 I
-X 2Q1 8 -750 -300 200 R 50 50 1 1 O
-X 2Q2 9 -750 -450 200 R 50 50 1 1 O
-X 2D2 10 -750 -600 200 R 50 50 1 1 I
-X 1Q4 20 250 150 200 L 50 50 1 1 O
-X 2D1 11 -750 -750 200 R 50 50 1 1 I
-X 1D4 21 250 300 200 L 50 50 1 1 I
-X 2C 12 -750 -900 200 R 50 50 1 1 I
-X 1D3 22 250 450 200 L 50 50 1 1 I
-X NC 13 250 -900 200 L 50 50 1 1 I
-X 1C 23 250 600 200 L 50 50 1 1 I
-X NC 14 250 -750 200 L 50 50 1 1 I
-X VCC 24 250 750 200 L 50 50 1 1 I
-X 2D3 15 250 -600 200 L 50 50 1 1 I
-X 2D4 16 250 -450 200 L 50 50 1 1 I
-X 2Q4 17 250 -300 200 L 50 50 1 1 O
-X 2Q3 18 250 -150 200 L 50 50 1 1 O
-X 1Q3 19 250 0 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# SN74120
-#
-DEF SN74120 X 0 40 Y Y 1 F N
-F0 "X" 0 800 60 H V C CNN
-F1 "SN74120" 0 1000 60 H V C CNN
-F2 "" 0 800 60 H I C CNN
-F3 "" 0 800 60 H I C CNN
-DRAW
-S -500 1100 500 -950 0 1 0 N
-X M_1 1 -700 950 200 R 50 50 1 1 I
-X S1_bar_1 2 -700 700 200 R 50 50 1 1 I
-X S2_bar_1 3 -700 450 200 R 50 50 1 1 I
-X R_bar_1 4 -700 200 200 R 50 50 1 1 I
-X C_1 5 -700 -50 200 R 50 50 1 1 I
-X Y_1 6 -700 -300 200 R 50 50 1 1 O
-X Y_bar_1 7 -700 -550 200 R 50 50 1 1 O
-X GND 8 -700 -800 200 R 50 50 1 1 I
-X Y_bar_2 9 700 -800 200 L 50 50 1 1 O
-X Y_2 10 700 -550 200 L 50 50 1 1 O
-X C_2 11 700 -300 200 L 50 50 1 1 I
-X R_bar_2 12 700 -50 200 L 50 50 1 1 I
-X S1_bar_2 13 700 200 200 L 50 50 1 1 I
-X S2_bar_2 14 700 450 200 L 50 50 1 1 I
-X M_2 15 700 700 200 L 50 50 1 1 I
-X VCC 16 700 950 200 L 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# SN74LVC4245A
-#
-DEF SN74LVC4245A X 0 40 Y Y 1 F N
-F0 "X" -50 -1200 60 H V C CNN
-F1 "SN74LVC4245A" -50 1400 60 H V C CNN
-F2 "" -50 1400 60 H I C CNN
-F3 "" -50 1400 60 H I C CNN
-DRAW
-S -300 1350 200 -1150 0 1 0 N
-X VccA(5V) 1 -500 1200 200 R 50 31 1 1 I
-X DIR 2 -500 1000 200 R 50 50 1 1 I
-X A1 3 -500 800 200 R 50 50 1 1 B
-X A2 4 -500 600 200 R 50 50 1 1 B
-X A3 5 -500 400 200 R 50 50 1 1 B
-X A4 6 -500 200 200 R 50 50 1 1 B
-X A5 7 -500 0 200 R 50 50 1 1 B
-X A6 8 -500 -200 200 R 50 50 1 1 B
-X A7 9 -500 -400 200 R 50 50 1 1 B
-X A8 10 -500 -600 200 R 50 50 1 1 B
-X B2 20 400 400 200 L 50 50 1 1 B
-X GND 11 -500 -800 200 R 50 50 1 1 I
-X B1 21 400 600 200 L 50 50 1 1 B
-X GND 12 -500 -1000 200 R 50 50 1 1 I
-X OE_bar 22 400 800 200 L 50 50 1 1 B
-X GND 13 400 -1000 200 L 50 50 1 1 I
-X VccB(3.3V) 23 400 1000 200 L 50 31 1 1 B
-X B8 14 400 -800 200 L 50 50 1 1 B
-X Vcc 24 400 1200 200 L 50 50 1 1 B
-X B7 15 400 -600 200 L 50 50 1 1 B
-X B6 16 400 -400 200 L 50 50 1 1 B
-X B5 17 400 -200 200 L 50 50 1 1 B
-X B4 18 400 0 200 L 50 50 1 1 B
-X B3 19 400 200 200 L 50 50 1 1 B
-ENDDRAW
-ENDDEF
-#
-# SN74S64
-#
-DEF SN74S64 X 0 40 Y Y 1 F N
-F0 "X" 50 -850 60 H V C CNN
-F1 "SN74S64" 50 350 60 H V C CNN
-F2 "" 50 350 60 H I C CNN
-F3 "" 50 350 60 H I C CNN
-DRAW
-S -200 300 250 -800 0 1 0 N
-X A 1 -300 200 121 R 34 50 1 1 I
-X E 2 -300 50 121 R 34 50 1 1 I
-X F 3 -300 -100 121 R 34 50 1 1 I
-X G 4 -300 -250 121 R 34 50 1 1 I
-X H 5 -300 -400 121 R 34 50 1 1 I
-X I 6 -300 -550 121 R 34 50 1 1 I
-X GND 7 -300 -700 121 R 34 50 1 1 I
-X Y 8 350 -700 121 L 34 50 1 1 O
-X J 9 350 -550 121 L 34 50 1 1 I
-X K 10 350 -400 121 L 34 50 1 1 I
-X B 11 350 -250 121 L 34 50 1 1 I
-X C 12 350 -100 121 L 34 50 1 1 I
-X D 13 350 50 121 L 34 50 1 1 I
-X VCC 14 350 200 121 L 34 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# Tri_Buffer
-#
-DEF Tri_Buffer X 0 40 Y Y 1 F N
-F0 "X" 100 -150 31 H V C CNN
-F1 "Tri_Buffer" 150 150 31 H V C CNN
-F2 "" 150 150 60 H I C CNN
-F3 "" 150 150 60 H I C CNN
-DRAW
-P 4 0 1 0 -150 200 -150 -200 200 0 -150 200 N
-X In 1 -350 0 200 R 31 31 1 1 I
-X En 2 -50 -350 200 U 31 31 1 1 I
-X Vcc 3 -50 350 200 D 31 31 1 1 I
-X Gnd 4 0 300 200 D 31 31 1 1 I
-X Out 5 400 0 200 L 31 31 1 1 O
-ENDDRAW
-ENDDEF
-#
-# UAF42
-#
-DEF UAF42 X 0 40 Y Y 1 F N
-F0 "X" 100 -100 60 H V C CNN
-F1 "UAF42" 100 0 60 H V C CNN
-F2 "" 100 0 60 H I C CNN
-F3 "" 100 0 60 H I C CNN
-DRAW
-S -550 800 750 -1250 0 1 0 N
-S 100 0 100 0 0 1 0 N
-X Low_Pass_O/P 1 -750 650 200 R 50 50 1 1 O
-X VIN3 2 -750 400 200 R 50 50 1 1 I
-X VIN2 3 -750 100 200 R 50 50 1 1 I
-X Auxiliary_In+ 4 -750 -200 200 R 50 50 1 1 I
-X Auxiliary_In- 5 -750 -550 200 R 50 50 1 1 I
-X Auxiliary_O/P 6 -750 -850 200 R 50 50 1 1 O
-X Band_Pass_O/P 7 -750 -1150 200 R 50 50 1 1 O
-X Freq_Adjust_1 8 950 -1150 200 L 50 50 1 1 I
-X V- 9 950 -850 200 L 50 50 1 1 I
-X V+ 10 950 -550 200 L 50 50 1 1 I
-X GND 11 950 -200 200 L 50 50 1 1 I
-X VIN1 12 950 100 200 L 50 50 1 1 I
-X High_Pass_O/P 13 950 400 200 L 50 50 1 1 O
-X Freq_Adjust_2 14 950 650 200 L 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# UJT
-#
-DEF UJT X 0 40 Y Y 1 F N
-F0 "X" -50 -50 60 H V C CNN
-F1 "UJT" 50 -50 60 H V C CNN
-F2 "" -50 -50 60 H I C CNN
-F3 "" -50 -50 60 H I C CNN
-DRAW
-C -50 -50 206 0 1 0 N
-P 2 0 1 0 -100 100 -100 -200 N
-P 3 0 1 0 -250 0 -200 0 -100 -100 N
-P 3 0 1 0 -200 -50 -150 -50 -150 0 N
-P 3 0 1 0 -100 -150 0 -150 0 -250 N
-P 3 0 1 0 -100 50 0 50 0 150 N
-X E 1 -450 0 200 R 50 50 1 1 I
-X B1 2 0 -450 200 U 50 50 1 1 B
-X B2 3 0 350 200 D 50 50 1 1 B
-ENDDRAW
-ENDDEF
-#
-# eSim_74LS04
-#
-DEF eSim_74LS04 X 0 40 Y Y 1 F N
-F0 "X" 0 100 60 H V C CNN
-F1 "eSim_74LS04" 0 0 60 H V C CNN
-F2 "" 0 0 60 H I C CNN
-F3 "" 0 0 60 H I C CNN
-DRAW
-S 350 500 -350 -500 0 1 0 N
-X ~ 1 -550 450 200 R 50 50 1 1 P
-X ~ 2 -550 300 200 R 50 50 1 1 P I
-X ~ 3 -550 150 200 R 50 50 1 1 P
-X ~ 4 -550 0 200 R 50 50 1 1 P I
-X ~ 5 -550 -150 200 R 50 50 1 1 P
-X ~ 6 -550 -300 200 R 50 50 1 1 P I
-X GND 7 -550 -450 200 R 50 50 1 1 P
-X ~ 8 550 -450 200 L 50 50 1 1 P I
-X ~ 9 550 -300 200 L 50 50 1 1 P
-X ~ 10 550 -150 200 L 50 50 1 1 P I
-X ~ 11 550 0 200 L 50 50 1 1 P
-X ~ 12 550 150 200 L 50 50 1 1 P I
-X ~ 13 550 300 200 L 50 50 1 1 P
-X VCC 14 550 450 200 L 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# full_adder
-#
-DEF full_adder X 0 40 Y Y 1 F N
-F0 "X" 1400 700 60 H V C CNN
-F1 "full_adder" 1400 600 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-S 800 1150 1950 0 0 1 0 N
-X IN1 1 600 950 200 R 50 50 1 1 I
-X IN2 2 600 550 200 R 50 50 1 1 I
-X CIN 3 600 150 200 R 50 50 1 1 I
-X SUM 4 2150 950 200 L 50 50 1 1 O
-X COUT 5 2150 150 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# full_sub
-#
-DEF full_sub X 0 40 Y Y 1 F N
-F0 "X" 0 0 60 H V C CNN
-F1 "full_sub" 0 0 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-S -550 650 450 -600 0 1 0 N
-X A 1 -750 400 200 R 50 50 1 1 I
-X B 2 -750 200 200 R 50 50 1 1 I
-X BIN 3 -750 -200 200 R 50 50 1 1 I
-X DIFF 4 650 450 200 L 50 50 1 1 O
-X BORROW 5 650 150 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# half_adder
-#
-DEF half_adder X 0 40 Y Y 1 F N
-F0 "X" 900 500 60 H V C CNN
-F1 "half_adder" 900 400 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-S 500 800 1250 0 0 1 0 N
-X IN1 1 300 700 200 R 50 50 1 1 I
-X IN2 2 300 100 200 R 50 50 1 1 I
-X SUM 3 1450 700 200 L 50 50 1 1 O
-X COUT 4 1450 100 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# half_sub
-#
-DEF half_sub X 0 40 Y Y 1 F N
-F0 "X" 0 0 60 H V C CNN
-F1 "half_sub" 0 0 60 H V C CNN
-F2 "" 0 0 60 H I C CNN
-F3 "" 0 0 60 H I C CNN
-DRAW
-S -300 300 300 -300 0 1 0 N
-X A 1 -500 200 200 R 50 50 1 1 I
-X B 2 -500 -100 200 R 50 50 1 1 I
-X D 3 500 150 200 L 50 50 1 1 O
-X BORROW 4 500 -100 200 L 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# lm_741
-#
-DEF lm_741 X 0 40 Y Y 1 F N
-F0 "X" -200 0 60 H V C CNN
-F1 "lm_741" -100 -250 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-P 4 0 1 0 -350 350 350 0 -350 -350 -350 350 N
-X off_null 1 -50 400 200 D 50 38 1 1 I
-X inv 2 -550 150 200 R 50 38 1 1 I
-X non_inv 3 -550 -100 200 R 50 38 1 1 I
-X v_neg 4 -150 -450 200 U 50 38 1 1 I
-X off_null 5 50 350 200 D 50 38 1 1 I
-X out 6 550 0 200 L 50 38 1 1 O
-X v_pos 7 -150 450 200 D 50 38 1 1 I
-X NC 8 150 -300 200 U 50 38 1 1 N
-ENDDRAW
-ENDDEF
-#
-#End Library
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# 10bitDAC
+#
+DEF 10bitDAC X 0 40 Y Y 1 F N
+F0 "X" 0 50 60 H V C CNN
+F1 "10bitDAC" -50 -50 60 H V C CNN
+F2 "" 0 50 60 H I C CNN
+F3 "" 0 50 60 H I C CNN
+DRAW
+S -500 500 400 -600 0 1 0 N
+X D0 1 -700 -500 200 R 50 50 1 1 I
+X D1 2 -700 -400 200 R 50 50 1 1 I
+X D2 3 -700 -300 200 R 50 50 1 1 I
+X D3 4 -700 -200 200 R 50 50 1 1 I
+X D4 5 -700 -100 200 R 50 50 1 1 I
+X D5 6 -700 0 200 R 50 50 1 1 I
+X D6 7 -700 100 200 R 50 50 1 1 I
+X D7 8 -700 200 200 R 50 50 1 1 I
+X D8 9 -700 300 200 R 50 50 1 1 I
+X D9 10 -700 400 200 R 50 50 1 1 I
+X AnalogOut 11 600 350 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# 2BITMUL
+#
+DEF 2BITMUL X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "2BITMUL" 0 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 400 300 -400 0 1 0 N
+X A0 1 -500 300 200 R 50 50 1 1 I
+X A1 2 -500 150 200 R 50 50 1 1 I
+X B0 3 -500 -50 200 R 50 50 1 1 I
+X B1 4 -500 -250 200 R 50 50 1 1 I
+X M0 5 500 250 200 L 50 50 1 1 O
+X M1 6 500 100 200 L 50 50 1 1 O
+X M2 7 500 -50 200 L 50 50 1 1 O
+X M3 8 500 -250 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# 2_in_and
+#
+DEF 2_in_and X 0 40 Y Y 1 F N
+F0 "X" -50 0 60 H V C CNN
+F1 "2_in_and" -100 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A -50 0 206 760 -760 0 1 0 N 0 200 0 -200
+P 2 0 1 0 -250 200 -250 -200 N
+P 2 0 1 0 -250 200 0 200 N
+P 2 0 1 0 0 -200 0 -200 N
+P 3 0 1 0 -250 -200 -50 -200 0 -200 N
+X vdd 1 -450 150 200 R 50 50 1 1 I
+X Gnd 2 -450 -150 200 R 50 50 1 1 I
+X in1 3 -450 50 200 R 50 50 1 1 I
+X in2 4 -450 -50 200 R 50 50 1 1 I
+X out 5 350 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# 3_and
+#
+DEF 3_and X 0 40 Y Y 1 F N
+F0 "X" 100 -50 60 H V C CNN
+F1 "3_and" 150 150 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 150 50 158 716 -716 0 1 0 N 200 200 200 -100
+P 2 0 1 0 -150 200 200 200 N
+P 3 0 1 0 -150 200 -150 -100 200 -100 N
+X in1 1 -350 150 200 R 50 50 1 1 I
+X in2 2 -350 50 200 R 50 50 1 1 I
+X in3 3 -350 -50 200 R 50 50 1 1 I
+X out 4 500 50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# 3_in_and
+#
+DEF 3_in_and X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "3_in_and" 0 -300 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 0 0 255 787 -787 0 1 0 N 50 250 50 -250
+P 2 0 1 0 -250 250 50 250 N
+P 3 0 1 0 -250 250 -250 -250 50 -250 N
+X in1 1 -450 100 200 R 50 50 1 1 I
+X in2 2 -450 0 200 R 50 50 1 1 I
+X VDD 3 -450 200 200 R 50 50 1 1 I
+X GND 4 -450 -200 200 R 50 50 1 1 I
+X in3 5 -450 -100 200 R 50 50 1 1 I
+X OUT 6 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# 4_OR
+#
+DEF 4_OR X 0 40 Y Y 1 F N
+F0 "X" 150 -100 60 H V C CNN
+F1 "4_OR" 150 100 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A -800 0 650 226 -226 0 1 0 N -200 250 -200 -250
+A -73 134 444 -599 -176 0 1 0 N 150 -250 350 0
+A -30 -99 393 627 146 0 1 0 N 150 250 350 0
+P 2 0 1 0 -200 -250 150 -250 N
+P 2 0 1 0 -200 250 150 250 N
+X in1 1 -350 150 200 R 50 50 1 1 I
+X in2 2 -350 50 200 R 50 50 1 1 I
+X in3 3 -350 -50 200 R 50 50 1 1 I
+X in4 4 -350 -150 200 R 50 50 1 1 I
+X out 5 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# 4_and
+#
+DEF 4_and X 0 40 Y Y 1 F N
+F0 "X" 50 -50 60 H V C CNN
+F1 "4_and" 100 100 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 100 0 206 760 -760 0 1 0 N 150 200 150 -200
+P 2 0 1 0 -200 200 150 200 N
+P 4 0 1 0 -200 200 -200 -200 50 -200 150 -200 N
+X in1 1 -400 150 200 R 50 50 1 1 I
+X in2 2 -400 50 200 R 50 50 1 1 I
+X in3 3 -400 -50 200 R 50 50 1 1 I
+X in4 4 -400 -150 200 R 50 50 1 1 I
+X out 5 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# 4_in_and
+#
+DEF 4_in_and X 0 40 Y Y 1 F N
+F0 "X" -50 0 60 H V C CNN
+F1 "4_in_and" -100 -350 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A -100 0 304 805 -805 0 1 0 N -50 300 -50 -300
+P 2 0 1 0 -350 -300 -50 -300 N
+P 2 0 1 0 -350 300 -350 -300 N
+P 2 0 1 0 -350 300 -100 300 N
+P 2 0 1 0 -100 300 -50 300 N
+X vdd 1 -550 250 200 R 50 50 1 1 I
+X in1 2 -550 150 200 R 50 50 1 1 I
+X in2 3 -550 50 200 R 50 50 1 1 I
+X in3 4 -550 -50 200 R 50 50 1 1 I
+X Gnd 5 -550 -250 200 R 50 50 1 1 I
+X in4 6 -550 -150 200 R 50 50 1 1 I
+X out 7 400 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# 556
+#
+DEF 556 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "556" 0 0 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -300 400 250 -550 0 1 0 N
+X dis1 1 -500 150 200 R 50 50 1 1 I
+X thr1 2 -500 -150 200 R 50 50 1 1 I
+X cv1 3 -150 -750 200 U 50 50 1 1 I
+X rst1 4 -200 600 200 D 50 50 1 1 I
+X out1 5 -500 0 200 R 50 50 1 1 O
+X trig1 6 -500 -300 200 R 50 50 1 1 I
+X gnd 7 0 -750 200 U 50 50 1 1 I
+X trig2 8 450 -300 200 L 50 50 1 1 I
+X out2 9 450 0 200 L 50 50 1 1 O
+X rst2 10 100 600 200 D 50 50 1 1 I
+X cv2 11 150 -750 200 U 50 50 1 1 I
+X thr2 12 450 -150 200 L 50 50 1 1 I
+X dis2 13 450 150 200 L 50 50 1 1 I
+X vcc 14 -50 600 200 D 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# 5_and
+#
+DEF 5_and X 0 40 Y Y 1 F N
+F0 "X" 50 -100 60 H V C CNN
+F1 "5_and" 100 150 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 100 0 255 787 -787 0 1 0 N 150 250 150 -250
+P 2 0 1 0 -250 250 150 250 N
+P 3 0 1 0 -250 250 -250 -250 150 -250 N
+X in1 1 -450 200 200 R 50 50 1 1 I
+X in2 2 -450 100 200 R 50 50 1 1 I
+X in3 3 -450 0 200 R 50 50 1 1 I
+X in4 4 -450 -100 200 R 50 50 1 1 I
+X in5 5 -450 -200 200 R 50 50 1 1 I
+X out 6 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CD4042B
+#
+DEF CD4042B X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CD4042B" 0 -450 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -450 400 450 -400 0 1 0 N
+X CLOCK 1 -650 -150 200 R 50 50 1 1 I
+X POLARITY 2 -650 -250 200 R 50 50 1 1 I
+X D1 3 -650 250 200 R 50 50 1 1 I
+X D2 4 -650 150 200 R 50 50 1 1 I
+X D3 5 -650 50 200 R 50 50 1 1 I
+X D4 6 -650 -50 200 R 50 50 1 1 I
+X VDD 7 -650 350 200 R 50 50 1 1 I
+X GND 8 -650 -350 200 R 50 50 1 1 I
+X Q1 9 650 350 200 L 50 50 1 1 O
+X Q2 10 650 250 200 L 50 50 1 1 O
+X Q3 11 650 150 200 L 50 50 1 1 O
+X Q4 12 650 50 200 L 50 50 1 1 O
+X Q1_Bar 13 650 -50 200 L 50 50 1 1 O
+X Q2_Bar 14 650 -150 200 L 50 50 1 1 O
+X Q3_Bar 15 650 -250 200 L 50 50 1 1 O
+X Q4_Bar 16 650 -350 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CD4044BMS
+#
+DEF CD4044BMS X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CD4044BMS" 0 -450 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 350 350 -350 0 1 0 N
+X S1 1 -500 200 200 R 50 50 1 1 I
+X E 2 0 550 200 D 50 50 1 1 I
+X R1 3 -500 -200 200 R 50 50 1 1 I
+X S2 4 -500 100 200 R 50 50 1 1 I
+X R2 5 -500 -300 200 R 50 50 1 1 I
+X S3 6 -500 0 200 R 50 50 1 1 I
+X R3 7 550 300 200 L 50 50 1 1 I
+X S4 8 -500 -100 200 R 50 50 1 1 I
+X R4 9 550 200 200 L 50 50 1 1 I
+X GND 10 550 -300 200 L 50 50 1 1 I
+X VDD 11 -500 300 200 R 50 50 1 1 I
+X O1 12 550 100 200 L 50 50 1 1 O
+X O3 13 550 -100 200 L 50 50 1 1 O
+X O2 14 550 0 200 L 50 50 1 1 O
+X O4 15 550 -200 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CD4068B
+#
+DEF CD4068B X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CD4068B" 0 -350 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 300 350 -300 0 1 0 N
+X in1 1 -500 150 200 R 50 50 1 1 I
+X in2 2 -500 50 200 R 50 50 1 1 I
+X in3 3 -500 -50 200 R 50 50 1 1 I
+X in4 4 -500 -150 200 R 50 50 1 1 I
+X in5 5 -500 -250 200 R 50 50 1 1 I
+X in6 6 550 250 200 L 50 50 1 1 I
+X in7 7 550 150 200 L 50 50 1 1 I
+X in8 8 550 50 200 L 50 50 1 1 I
+X VDD 9 -500 250 200 R 50 50 1 1 I
+X GND 10 550 -250 200 L 50 50 1 1 I
+X OUT 11 550 -50 200 L 50 50 1 1 O
+X OUT_Bar 12 550 -150 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CMOS_BUF
+#
+DEF CMOS_BUF X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_BUF" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+P 4 0 1 0 -250 150 -250 -150 250 0 -250 150 N
+X VDD 1 -450 100 200 R 50 50 1 1 I
+X GND 2 -450 -100 200 R 50 50 1 1 I
+X IN 3 -450 0 200 R 50 50 1 1 I
+X OUT 4 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CMOS_INVTR
+#
+DEF CMOS_INVTR X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "CMOS_INVTR" -50 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 250 0 50 0 1 0 N
+P 2 0 1 0 -250 150 200 0 N
+P 3 0 1 0 -250 150 -250 -150 200 0 N
+X IN 1 -450 0 200 R 50 50 1 1 I
+X VDD 2 -450 100 200 R 50 50 1 1 I
+X GND 3 -450 -100 200 R 50 50 1 1 I
+X OUT 4 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# CMOS_NAND
+#
+DEF CMOS_NAND X 0 40 Y Y 1 F N
+F0 "X" -100 -150 60 H V C CNN
+F1 "CMOS_NAND" 0 -50 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 150 -50 381 668 -668 0 1 0 N 300 300 300 -400
+C 550 0 50 0 1 0 N
+P 2 0 1 0 -350 300 300 300 N
+P 3 0 1 0 -350 300 -350 -400 300 -400 N
+X in1 1 -550 250 200 R 50 50 1 1 I
+X in2 2 -550 -300 200 R 50 50 1 1 I
+X out 3 800 0 279 L 79 79 1 1 I
+ENDDRAW
+ENDDEF
+#
+# Clock_pulse_generator
+#
+DEF Clock_pulse_generator X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "Clock_pulse_generator" 0 -100 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -550 200 600 -300 0 1 0 N
+X Vdd 1 -750 100 200 R 50 50 1 1 I
+X R 2 -750 -50 200 R 50 50 1 1 I
+X C 3 -750 -200 200 R 50 50 1 1 I
+X Clkout 4 800 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# DFF_CE
+#
+DEF DFF_CE X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "DFF_CE" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -400 150 300 -150 0 1 0 N
+X CLK 1 -600 -100 200 R 50 50 1 1 I
+X CLK_EN 2 -600 0 200 R 50 50 1 1 I
+X D 3 -600 100 200 R 50 50 1 1 I
+X VDD 4 500 100 200 L 50 50 1 1 I
+X GND 5 500 -100 200 L 50 50 1 1 I
+X OUT 6 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# DS_blk
+#
+DEF DS_blk X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "DS_blk" 50 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 200 250 -200 0 1 0 N
+X in1 1 -450 150 200 R 50 50 1 1 I
+X ws1 2 -450 50 200 R 50 50 1 1 I
+X ws2 3 -450 -50 200 R 50 50 1 1 I
+X in2 4 -450 -150 200 R 50 50 1 1 I
+X clk 5 450 50 200 L 50 50 1 1 I C
+X vdd 6 450 150 200 L 50 50 1 1 I
+X gnd 7 450 -150 200 L 50 50 1 1 I
+X out 8 450 -50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# D_FF
+#
+DEF D_FF X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "D_FF" 50 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 200 300 -200 0 1 0 N
+X D 1 -450 50 200 R 50 50 1 1 I
+X CLK 2 -450 -50 200 R 50 50 1 1 I
+X VDD 3 -450 150 200 R 50 50 1 1 I
+X GND 4 -450 -150 200 R 50 50 1 1 I
+X OUT 5 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# D_Latch
+#
+DEF D_Latch X 0 40 Y Y 1 F N
+F0 "X" -50 0 60 H V C CNN
+F1 "D_Latch" 0 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 200 300 -200 0 1 0 N
+X LE 1 -450 100 200 R 50 50 1 1 I
+X D 2 -450 0 200 R 50 50 1 1 I
+X RE 3 -450 -100 200 R 50 50 1 1 I
+X Gnd 4 0 -400 200 U 50 50 1 1 I
+X Vdd 5 0 400 200 D 50 50 1 1 I
+X Q 6 500 50 200 L 50 50 1 1 O
+X Q_Bar 7 500 -50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Decoder_38
+#
+DEF Decoder_38 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "Decoder_38" 0 -500 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 450 250 -450 0 1 0 N
+X S0_B 1 -500 300 200 R 50 50 1 1 I I
+X S1_B 2 -500 200 200 R 50 50 1 1 I I
+X S2_B 3 -500 100 200 R 50 50 1 1 I I
+X S0 4 -500 -100 200 R 50 50 1 1 I
+X S1 5 -500 -200 200 R 50 50 1 1 I
+X S2 6 -500 -300 200 R 50 50 1 1 I
+X G 7 -500 0 200 R 50 50 1 1 I I
+X Vdd 8 -500 400 200 R 50 50 1 1 I
+X Gnd 9 -500 -400 200 R 50 50 1 1 I
+X D6 10 450 -300 200 L 50 50 1 1 O
+X D4 11 450 -100 200 L 50 50 1 1 O
+X D0 12 450 400 200 L 50 50 1 1 O
+X D7 13 450 -400 200 L 50 50 1 1 O
+X D5 14 450 -200 200 L 50 50 1 1 O
+X D2 15 450 200 200 L 50 50 1 1 O
+X D1 16 450 300 200 L 50 50 1 1 O
+X D3 17 450 100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Decoder_38_Address_Latch_storage
+#
+DEF Decoder_38_Address_Latch_storage X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "Decoder_38_Address_Latch_storage" 0 -600 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 550 200 -550 0 1 0 N
+X Q1 1 400 350 200 L 50 50 1 1 O
+X Q3 2 400 150 200 L 50 50 1 1 O
+X Q2 3 400 250 200 L 50 50 1 1 O
+X Q4 4 400 50 200 L 50 50 1 1 O
+X Vdd 5 -450 500 200 R 50 50 1 1 I
+X Gnd 6 -450 -500 200 R 50 50 1 1 I
+X Q5 7 400 -50 200 L 50 50 1 1 O
+X Q6 8 400 -150 200 L 50 50 1 1 O
+X Q7 9 400 -250 200 L 50 50 1 1 O
+X Q8 10 400 -350 200 L 50 50 1 1 O
+X RE 11 -450 -300 200 R 50 50 1 1 I
+X D 12 -450 -400 200 R 50 50 1 1 I
+X S0_B 13 -450 400 200 R 50 50 1 1 I I
+X S1_B 14 -450 300 200 R 50 50 1 1 I I
+X S2_B 15 -450 200 200 R 50 50 1 1 I I
+X G 16 -450 -200 200 R 50 50 1 1 I I
+X S0 17 -450 100 200 R 50 50 1 1 I
+X S1 18 -450 0 200 R 50 50 1 1 I
+X S2 19 -450 -100 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# IC_4002
+#
+DEF IC_4002 X 0 40 Y Y 1 F N
+F0 "X" 0 150 60 H V C CNN
+F1 "IC_4002" 0 0 60 H V C CNN
+F2 "" 50 -150 60 H V C CNN
+F3 "" 50 -150 60 H V C CNN
+DRAW
+S -250 350 250 -400 0 1 0 N
+X 1Y 1 -450 250 200 R 50 50 1 1 O
+X 1A 2 -450 150 200 R 50 50 1 1 I
+X 1B 3 -450 50 200 R 50 50 1 1 I
+X 1C 4 -450 -50 200 R 50 50 1 1 I
+X 1D 5 -450 -150 200 R 50 50 1 1 I
+X NC 6 -450 -250 200 R 50 50 1 1 I
+X GND 7 -450 -350 200 R 50 50 1 1 I
+X NC 8 450 -350 200 L 50 50 1 1 I
+X 2A 9 450 -250 200 L 50 50 1 1 I
+X 2B 10 450 -150 200 L 50 50 1 1 I
+X 2C 11 450 -50 200 L 50 50 1 1 I
+X 2D 12 450 50 200 L 50 50 1 1 I
+X 2Y 13 450 150 200 L 50 50 1 1 O
+X VCC 14 450 250 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# IC_4012
+#
+DEF IC_4012 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "IC_4012" 0 200 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -300 400 350 -400 0 1 0 N
+X Q1 1 -500 300 200 R 50 50 1 1 O
+X A1 2 -500 200 200 R 50 50 1 1 I
+X B1 3 -500 100 200 R 50 50 1 1 I
+X C1 4 -500 0 200 R 50 50 1 1 I
+X D1 5 -500 -100 200 R 50 50 1 1 I
+X NC 6 -500 -200 200 R 50 50 1 1 N
+X VSS 7 -500 -300 200 R 50 50 1 1 I
+X NC 8 550 -300 200 L 50 50 1 1 N
+X A2 9 550 -200 200 L 50 50 1 1 I
+X B2 10 550 -100 200 L 50 50 1 1 I
+X C2 11 550 0 200 L 50 50 1 1 I
+X D2 12 550 100 200 L 50 50 1 1 I
+X Q2 13 550 200 200 L 50 50 1 1 O
+X VDD 14 550 300 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# IC_4017
+#
+DEF IC_4017 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "IC_4017" 0 0 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -350 850 400 -850 0 1 0 N
+X 1 1 600 650 200 L 50 50 1 1 O
+X 2 2 600 500 200 L 50 50 1 1 O
+X 3 3 600 350 200 L 50 50 1 1 O
+X 4 4 600 200 200 L 50 50 1 1 O
+X 5 5 600 50 200 L 50 50 1 1 O
+X 6 6 600 -100 200 L 50 50 1 1 O
+X 7 7 600 -250 200 L 50 50 1 1 O
+X 8 8 600 -400 200 L 50 50 1 1 O
+X 9 9 600 -600 200 L 50 50 1 1 O
+X 10 10 600 -750 200 L 50 50 1 1 O
+X RST 11 -550 -400 200 R 50 50 1 1 I
+X CLK 12 -550 350 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# IC_4023
+#
+DEF IC_4023 X 0 40 Y Y 1 F N
+F0 "X" 0 -100 60 H V C CNN
+F1 "IC_4023" 0 100 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -300 450 300 -450 0 1 0 N
+X A1 1 -500 300 200 R 50 50 1 1 I
+X B1 2 -500 200 200 R 50 50 1 1 I
+X A2 3 -500 100 200 R 50 50 1 1 I
+X B2 4 -500 0 200 R 50 50 1 1 I
+X C2 5 -500 -100 200 R 50 50 1 1 I
+X Q2 6 -500 -200 200 R 50 50 1 1 O
+X Vss 7 -500 -300 200 R 50 50 1 1 I
+X C1 8 500 -300 200 L 50 50 1 1 I
+X Q1 9 500 -200 200 L 50 50 1 1 O
+X Q3 10 500 -100 200 L 50 50 1 1 O
+X C3 11 500 0 200 L 50 50 1 1 I
+X B3 12 500 100 200 L 50 50 1 1 I
+X A3 13 500 200 200 L 50 50 1 1 I
+X Vdd 14 500 300 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# IC_4028
+#
+DEF IC_4028 X 0 40 Y Y 1 F N
+F0 "X" 0 -100 60 H V C CNN
+F1 "IC_4028" 0 50 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -300 450 300 -450 0 1 0 N
+X Q4 1 -500 350 200 R 50 50 1 1 O
+X Q2 2 -500 250 200 R 50 50 1 1 O
+X Q0 3 -500 150 200 R 50 50 1 1 O
+X Q7 4 -500 50 200 R 50 50 1 1 O
+X Q9 5 -500 -50 200 R 50 50 1 1 O
+X Q5 6 -500 -150 200 R 50 50 1 1 O
+X Q6 7 -500 -250 200 R 50 50 1 1 O
+X Vss 8 -500 -350 200 R 50 50 1 1 I
+X Q8 9 500 -350 200 L 50 50 1 1 O
+X A0 10 500 -250 200 L 50 50 1 1 I
+X A3 11 500 -150 200 L 50 50 1 1 I
+X A2 12 500 -50 200 L 50 50 1 1 I
+X A1 13 500 50 200 L 50 50 1 1 I
+X Q1 14 500 150 200 L 50 50 1 1 O
+X Q3 15 500 250 200 L 50 50 1 1 O
+X Vdd 16 500 350 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# IC_4073
+#
+DEF IC_4073 X 0 40 Y Y 1 F N
+F0 "X" 0 -100 60 H V C CNN
+F1 "IC_4073" 0 50 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -300 400 300 -400 0 1 0 N
+X A1 1 -500 300 200 R 50 50 1 1 I
+X B1 2 -500 200 200 R 50 50 1 1 I
+X A2 3 -500 100 200 R 50 50 1 1 I
+X B2 4 -500 0 200 R 50 50 1 1 I
+X C2 5 -500 -100 200 R 50 50 1 1 I
+X Q2 6 -500 -200 200 R 50 50 1 1 O
+X Vss 7 -500 -300 200 R 50 50 1 1 I
+X C1 8 500 -300 200 L 50 50 1 1 I
+X Q1 9 500 -200 200 L 50 50 1 1 O
+X Q3 10 500 -100 200 L 50 50 1 1 O
+X A3 11 500 0 200 L 50 50 1 1 I
+X B3 12 500 100 200 L 50 50 1 1 I
+X C3 13 500 200 200 L 50 50 1 1 I
+X Vdd 14 500 300 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# IC_74153
+#
+DEF IC_74153 X 0 40 Y Y 1 F N
+F0 "X" 100 50 60 H V C CNN
+F1 "IC_74153" 100 150 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+T 0 100 -200 60 0 0 0 4:1 Normal 0 C C
+T 0 100 -100 60 0 0 0 DUAL Normal 0 C C
+T 0 100 -300 60 0 0 0 MUX Normal 0 C C
+S -200 500 350 -550 0 1 0 N
+X a0 1 -400 350 200 R 50 50 1 1 I
+X a1 2 -400 250 200 R 50 50 1 1 I
+X a2 3 -400 150 200 R 50 50 1 1 I
+X a3 4 -400 50 200 R 50 50 1 1 I
+X EA 5 0 700 200 D 50 50 1 1 I I
+X b0 6 -400 -150 200 R 50 50 1 1 I
+X b1 7 -400 -250 200 R 50 50 1 1 I
+X b2 8 -400 -350 200 R 50 50 1 1 I
+X b3 9 -400 -450 200 R 50 50 1 1 I
+X EB 10 200 700 200 D 50 50 1 1 I I
+X s1 11 50 -750 200 U 50 50 1 1 I
+X s0 12 150 -750 200 U 50 50 1 1 I
+X ya 13 550 250 200 L 50 50 1 1 O
+X yb 14 550 -300 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# IC_74154
+#
+DEF IC_74154 X 0 40 Y Y 1 F N
+F0 "X" 0 -200 60 H V C CNN
+F1 "IC_74154" 50 -50 60 H V C CNN
+F2 "" 0 50 60 H V C CNN
+F3 "" 0 50 60 H V C CNN
+DRAW
+T 0 0 400 60 0 0 0 4:16~ Normal 0 C C
+T 0 0 250 60 0 0 0 decoder Normal 0 C C
+S -350 700 400 -700 0 0 0 N
+X ~Y0 1 -550 550 200 R 50 50 1 1 O I
+X ~Y1 2 -550 450 200 R 50 50 1 1 O I
+X ~Y2 3 -550 350 200 R 50 50 1 1 O I
+X ~Y3 4 -550 250 200 R 50 50 1 1 O I
+X ~Y4 5 -550 150 200 R 50 50 1 1 O I
+X ~Y5 6 -550 50 200 R 50 50 1 1 O I
+X ~Y6 7 -550 -50 200 R 50 50 1 1 O I
+X ~Y7 8 -550 -150 200 R 50 50 1 1 O I
+X ~Y8 9 -550 -250 200 R 50 50 1 1 O I
+X ~Y9 10 -550 -350 200 R 50 50 1 1 O I
+X A3 20 600 150 200 L 50 50 1 1 I
+X ~Y10 11 -550 -450 200 R 50 50 1 1 O I
+X A2 21 600 250 200 L 50 50 1 1 I
+X GND 12 -550 -550 200 R 50 50 1 1 I
+X A1 22 600 350 200 L 50 50 1 1 I
+X ~Y11 13 600 -550 200 L 50 50 1 1 O I
+X A0 23 600 450 200 L 50 50 1 1 I
+X ~Y12 14 600 -450 200 L 50 50 1 1 O I
+X Vcc 24 600 550 200 L 50 50 1 1 I
+X ~Y13 15 600 -350 200 L 50 50 1 1 O I
+X ~Y14 16 600 -250 200 L 50 50 1 1 O I
+X ~Y15 17 600 -150 200 L 50 50 1 1 O I
+X ~E0 18 600 -50 200 L 50 50 1 1 I I
+X ~E1 19 600 50 200 L 50 50 1 1 I I
+ENDDRAW
+ENDDEF
+#
+# IC_74157
+#
+DEF IC_74157 X 0 40 Y Y 1 F N
+F0 "X" 50 -50 60 H V C CNN
+F1 "IC_74157" 50 100 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+T 0 50 -300 60 0 0 0 2:1 Normal 0 C C
+T 0 50 -400 60 0 0 0 MUX Normal 0 C C
+T 0 50 -200 60 0 0 0 QUAD Normal 0 C C
+S -350 550 400 -650 0 1 0 N
+X a0 1 -550 450 200 R 50 50 1 1 I
+X a1 2 -550 300 200 R 50 50 1 1 I
+X b0 3 -550 200 200 R 50 50 1 1 I
+X b1 4 -550 100 200 R 50 50 1 1 I
+X c0 5 -550 0 200 R 50 50 1 1 I
+X c1 6 -550 -100 200 R 50 50 1 1 I
+X d0 7 -550 -200 200 R 50 50 1 1 I
+X d1 8 -550 -300 200 R 50 50 1 1 I
+X EN 9 -550 -550 200 R 50 50 1 1 I I
+X S 10 -550 -450 200 R 50 50 1 1 I
+X Yd 11 600 0 200 L 50 50 1 1 O
+X Ya 12 600 300 200 L 50 50 1 1 O
+X Yb 13 600 200 200 L 50 50 1 1 O
+X Yc 14 600 100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# IC_7485
+#
+DEF IC_7485 X 0 40 Y Y 1 F N
+F0 "X" -50 -100 60 H V C CNN
+F1 "IC_7485" -50 50 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+T 0 0 550 60 0 0 0 4~BIT~comparator Normal 0 C C
+S -350 450 400 -400 0 1 0 N
+X A<B(in) 1 600 -100 200 L 50 50 1 1 I
+X A=B(in) 2 600 -200 200 L 50 50 1 1 I
+X A>B(in) 3 600 -300 200 L 50 50 1 1 I
+X A3 4 -550 100 200 R 50 50 1 1 I
+X B3 5 -550 -350 200 R 50 50 1 1 I
+X A2 6 -550 200 200 R 50 50 1 1 I
+X B2 7 -550 -250 200 R 50 50 1 1 I
+X A1 8 -550 300 200 R 50 50 1 1 I
+X B1 9 -550 -150 200 R 50 50 1 1 I
+X A0 10 -550 400 200 R 50 50 1 1 I
+X B0 11 -550 -50 200 R 50 50 1 1 I
+X A>B(out) 12 600 350 200 L 50 50 1 1 O
+X A=B(out) 13 600 250 200 L 50 50 1 1 O
+X A<B(out) 14 600 150 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# INVCMOS
+#
+DEF INVCMOS X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "INVCMOS" -450 150 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 400 0 112 0 1 0 N
+S -250 200 -250 -200 0 1 0 N
+P 3 0 1 0 -250 200 300 0 -250 -200 N
+X in 1 -450 0 200 R 50 50 1 1 P
+X out 2 700 0 200 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# LM555N
+#
+DEF LM555N X 0 40 Y Y 1 F N
+F0 "X" 0 -50 60 H V C CNN
+F1 "LM555N" 0 100 60 H V C CNN
+F2 "" -50 0 60 H V C CNN
+F3 "" -50 0 60 H V C CNN
+DRAW
+S 350 -400 -350 400 0 1 0 N
+X GND 1 0 -600 200 U 50 50 1 1 W
+X TR 2 -550 250 200 R 50 50 1 1 I
+X Q 3 550 250 200 L 50 50 1 1 O
+X R 4 -550 -250 200 R 50 50 1 1 I I
+X CV 5 -550 0 200 R 50 50 1 1 I
+X THR 6 550 -250 200 L 50 50 1 1 I
+X DIS 7 550 0 200 L 50 50 1 1 I
+X VCC 8 0 600 200 D 50 50 1 1 W
+ENDDRAW
+ENDDEF
+#
+# LM_7812
+#
+DEF LM_7812 X 0 40 Y Y 1 F N
+F0 "X" 0 50 60 H V C CNN
+F1 "LM_7812" 0 150 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 200 350 -200 0 1 0 N
+X IN 1 -550 0 200 R 50 50 1 1 I
+X GND 2 0 -400 200 U 50 50 1 1 I
+X OUT 3 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Lm_7805
+#
+DEF Lm_7805 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "Lm_7805" 50 150 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 100 350 -200 0 1 0 N
+X Vin 1 -550 0 200 R 50 50 1 1 P
+X GND 2 0 -400 200 U 50 50 1 1 P
+X Vout 3 550 0 200 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# MUX_21
+#
+DEF MUX_21 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "MUX_21" 200 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+P 5 0 1 0 -250 200 -250 -200 200 -100 200 100 -250 200 N
+X S 1 0 -350 200 U 50 50 1 1 O
+X B 2 -450 -50 200 R 50 50 1 1 I
+X A 3 -450 50 200 R 50 50 1 1 I
+X VDD 4 -450 150 200 R 50 50 1 1 I
+X GND 5 -450 -150 200 R 50 50 1 1 I
+X Y 6 400 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NAND_2
+#
+DEF NAND_2 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "NAND_2" 0 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A -50 0 206 760 -760 0 1 0 N 0 200 0 -200
+C 200 0 50 0 1 0 N
+P 2 0 1 0 -250 200 0 200 N
+P 3 0 1 0 -250 200 -250 -200 0 -200 N
+X IN1 1 -450 50 200 R 50 50 1 1 I
+X GND 2 -450 -150 200 R 50 50 1 1 I
+X VDD 3 -450 150 200 R 50 50 1 1 I
+X IN2 4 -450 -50 200 R 50 50 1 1 I
+X OUT 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NAND_3
+#
+DEF NAND_3 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "NAND_3" 0 -300 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A 0 0 255 787 -787 0 1 0 N 50 250 50 -250
+C 300 0 50 0 1 0 N
+P 2 0 1 0 -250 250 50 250 N
+P 3 0 1 0 -250 250 -250 -250 50 -250 N
+X IN1 1 -450 100 200 R 50 50 1 1 I
+X IN2 2 -450 0 200 R 50 50 1 1 I
+X GND 3 -450 -200 200 R 50 50 1 1 I
+X VDD 4 -450 200 200 R 50 50 1 1 I
+X OUT 5 550 0 200 L 50 50 1 1 O
+X IN3 6 -450 -100 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# NOR_2
+#
+DEF NOR_2 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "NOR_2" 0 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A -450 0 250 531 -531 0 1 0 N -300 200 -300 -200
+A -178 -219 436 1062 301 0 1 0 N -300 200 200 0
+A -174 210 429 -1071 -293 0 1 0 N -300 -200 200 0
+C 250 0 50 0 1 0 N
+X IN1 1 -400 50 200 R 50 50 1 1 I
+X GND 2 -450 -150 200 R 50 50 1 1 I
+X VDD 3 -450 150 200 R 50 50 1 1 I
+X IN2 4 -400 -50 200 R 50 50 1 1 I
+X OUT 5 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# NOR_3
+#
+DEF NOR_3 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "NOR_3" 50 -300 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A -500 0 320 513 -513 0 1 0 N -300 250 -300 -250
+A -163 265 533 -1049 -298 0 1 0 N -300 -250 300 0
+A -148 -230 503 1076 272 0 1 0 N -300 250 300 0
+C 350 0 50 0 1 0 N
+X in1 1 -400 100 200 R 50 50 1 1 I
+X in2 2 -400 0 200 R 50 50 1 1 I
+X out 3 600 0 200 L 50 50 1 1 O
+X Gnd 4 -450 -200 200 R 50 50 1 1 I
+X vdd 5 -450 200 200 R 50 50 1 1 I
+X in3 6 -400 -100 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# NOR_Latch
+#
+DEF NOR_Latch X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "NOR_Latch" 50 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -200 200 300 -200 0 1 0 N
+X S 1 -400 50 200 R 50 50 1 1 I
+X R 2 -400 -50 200 R 50 50 1 1 I
+X VDD 3 -400 150 200 R 50 50 1 1 I
+X GND 4 -400 -150 200 R 50 50 1 1 I
+X OUT 5 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Quad_D_FF
+#
+DEF Quad_D_FF X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "Quad_D_FF" 100 -500 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 350 400 -450 0 1 0 N
+X D1 1 -450 150 200 R 50 50 1 1 I
+X CLK 2 -450 -250 200 R 50 50 1 1 I
+X D2 3 -450 50 200 R 50 50 1 1 I
+X D3 4 -450 -50 200 R 50 50 1 1 I
+X D4 5 -450 -150 200 R 50 50 1 1 I
+X GND 6 -450 -350 200 R 50 50 1 1 I
+X Vdd 7 -450 250 200 R 50 50 1 1 I
+X Q1 8 600 300 200 L 50 50 1 1 O
+X Q2 9 600 200 200 L 50 50 1 1 O
+X Q3 10 600 100 200 L 50 50 1 1 O
+X Q4 11 600 0 200 L 50 50 1 1 O
+X Q1_Bar 12 600 -100 200 L 50 50 1 1 O
+X Q2_Bar 13 600 -200 200 L 50 50 1 1 O
+X Q3_Bar 14 600 -300 200 L 50 50 1 1 O
+X Q4_Bar 15 600 -400 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Rnk_Blk
+#
+DEF Rnk_Blk X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "Rnk_Blk" 0 -300 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 250 350 -250 0 1 0 N
+X D_In 1 -500 100 200 R 50 50 1 1 I
+X CKE1 2 -500 0 200 R 50 50 1 1 I I
+X CLK 3 -500 -100 200 R 50 50 1 1 I C
+X VDD 4 -500 200 200 R 50 50 1 1 I
+X GND 5 550 -200 200 L 50 50 1 1 I
+X INSEL 6 -500 -200 200 R 50 50 1 1 I
+X CKE2 7 550 0 200 L 50 50 1 1 I I
+X OUTSEL 8 550 100 200 L 50 50 1 1 I
+X OE 9 550 200 200 L 50 50 1 1 I I
+X OUT 10 550 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# SCR
+#
+DEF SCR X 0 10 Y N 1 F N
+F0 "X" 150 200 50 H V C CNN
+F1 "SCR" 150 -350 50 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+P 2 0 0 0 -200 -150 200 -150 N
+P 2 0 1 0 0 -150 -200 -400 N
+P 3 0 1 0 -150 100 150 100 0 -150 F
+X A 1 0 400 300 D 60 60 1 1 I
+X K 2 0 -550 400 U 60 70 1 1 I
+X G 3 -350 -400 150 R 60 60 1 1 I
+ENDDRAW
+ENDDEF
+#
+# SN54L98
+#
+DEF SN54L98 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "SN54L98" 0 -450 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 400 250 -400 0 1 0 N
+X ws 1 -450 250 200 R 50 50 1 1 I
+X Vdd 2 -450 350 200 R 50 50 1 1 I
+X Gnd 3 450 -350 200 L 50 50 1 1 I
+X clk 4 -450 150 200 R 50 50 1 1 I C
+X A1 5 -450 50 200 R 50 50 1 1 I
+X A2 6 -450 -50 200 R 50 50 1 1 I
+X B1 7 -450 -150 200 R 50 50 1 1 I
+X B2 8 -450 -250 200 R 50 50 1 1 I
+X C1 9 -450 -350 200 R 50 50 1 1 I
+X C2 10 450 350 200 L 50 50 1 1 I
+X D1 11 450 250 200 L 50 50 1 1 I
+X D2 12 450 150 200 L 50 50 1 1 I
+X Oa 13 450 50 200 L 50 50 1 1 O
+X Ob 14 450 -50 200 L 50 50 1 1 O
+X Oc 15 450 -150 200 L 50 50 1 1 O
+X Od 16 450 -250 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# SN54L99
+#
+DEF SN54L99 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "SN54L99" 0 -400 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 350 250 -350 0 1 0 N
+X CL_R 2 -450 200 200 R 50 50 1 1 I C
+X CL_L 3 -450 100 200 R 50 50 1 1 I C
+X A 4 -450 0 200 R 50 50 1 1 I
+X Oa 5 450 300 200 L 50 50 1 1 O
+X K 6 450 -200 200 L 50 50 1 1 I
+X J 7 450 -100 200 L 50 50 1 1 I
+X B 8 -450 -100 200 R 50 50 1 1 I
+X Ob 9 450 200 200 L 50 50 1 1 O
+X C 10 -450 -200 200 R 50 50 1 1 I
+X Oc 11 450 100 200 L 50 50 1 1 O
+X D 12 -450 -300 200 R 50 50 1 1 I
+X Vdd 13 -450 300 200 R 50 50 1 1 I
+X Od 14 450 0 200 L 50 50 1 1 O
+X Gnd 15 450 -300 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# SN74ABT337
+#
+DEF SN74ABT337 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "SN74ABT337" 0 -350 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 300 300 -300 0 1 0 N
+X G 1 0 500 200 D 50 50 1 1 I I
+X VDD 2 -500 250 200 R 50 50 1 1 I
+X CLK 3 -500 150 200 R 50 50 1 1 I C
+X CLR 4 -500 50 200 R 50 50 1 1 I I
+X GND 5 500 -250 200 L 50 50 1 1 I
+X Y1 6 -500 -50 200 R 50 50 1 1 O
+X Y2 7 -500 -150 200 R 50 50 1 1 O
+X Y3 8 -500 -250 200 R 50 50 1 1 O
+X Y4 9 500 250 200 L 50 50 1 1 O
+X Q1 10 500 150 200 L 50 50 1 1 O
+X Q2 11 500 50 200 L 50 50 1 1 O
+X Q3 12 500 -50 200 L 50 50 1 1 O
+X Q4 13 500 -150 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# SN74ALS1011A
+#
+DEF SN74ALS1011A X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "SN74ALS1011A" 0 -400 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 350 350 -350 0 1 0 N
+X in1_2 1 -550 100 200 R 50 50 1 1 I
+X in1_1 2 -550 200 200 R 50 50 1 1 I
+X in1_3 3 -550 0 200 R 50 50 1 1 I
+X GND 4 550 -300 200 L 50 50 1 1 I
+X VDD 5 -550 300 200 R 50 50 1 1 I
+X O1 6 550 0 200 L 50 50 1 1 O
+X in2_2 7 -550 -200 200 R 50 50 1 1 I
+X in2_1 8 -550 -100 200 R 50 50 1 1 I
+X in2_3 9 -550 -300 200 R 50 50 1 1 I
+X O2 10 550 -100 200 L 50 50 1 1 O
+X in3_2 11 550 200 200 L 50 50 1 1 I
+X in3_1 12 550 300 200 L 50 50 1 1 I
+X in3_3 13 550 100 200 L 50 50 1 1 I
+X O3 14 550 -200 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# SN74HC259
+#
+DEF SN74HC259 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "SN74HC259" 0 -450 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -200 400 200 -400 0 1 0 N
+X S0 1 -400 250 200 R 50 50 1 1 I
+X S1 2 -400 150 200 R 50 50 1 1 I
+X S2 3 -400 50 200 R 50 50 1 1 I
+X G 4 -400 -50 200 R 50 50 1 1 I I
+X RE 5 -400 -150 200 R 50 50 1 1 I I
+X VDD 6 -400 350 200 R 50 50 1 1 I
+X D 7 -400 -250 200 R 50 50 1 1 I
+X GND 8 -400 -350 200 R 50 50 1 1 I
+X Q1 9 400 350 200 L 50 50 1 1 O
+X Q2 10 400 250 200 L 50 50 1 1 O
+X Q3 11 400 150 200 L 50 50 1 1 O
+X Q4 12 400 50 200 L 50 50 1 1 O
+X Q5 13 400 -50 200 L 50 50 1 1 O
+X Q6 14 400 -150 200 L 50 50 1 1 O
+X Q7 15 400 -250 200 L 50 50 1 1 O
+X Q8 16 400 -350 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# SN74LS548
+#
+DEF SN74LS548 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "SN74LS548" 0 -450 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 400 350 -400 0 1 0 N
+X VDD 1 -50 600 200 D 50 50 1 1 I
+X CKE1 2 -150 -600 200 U 50 50 1 1 I
+X CLK 3 -150 600 200 D 50 50 1 1 I
+X INSEL 4 50 600 200 D 50 50 1 1 I
+X D1 5 -550 350 200 R 50 50 1 1 I
+X D2 6 -550 250 200 R 50 50 1 1 I
+X Y1 7 550 350 200 L 50 50 1 1 O
+X Y2 8 550 250 200 L 50 50 1 1 O
+X D3 9 -550 150 200 R 50 50 1 1 I
+X D4 10 -550 50 200 R 50 50 1 1 I
+X Y8 20 550 -350 200 L 50 50 1 1 O
+X Y3 11 550 150 200 L 50 50 1 1 O
+X CKE2 21 -50 -600 200 U 50 50 1 1 I
+X Y4 12 550 50 200 L 50 50 1 1 O
+X OUTSEL 22 50 -600 200 U 50 50 1 1 I
+X D5 13 -550 -50 200 R 50 50 1 1 I
+X OE 23 150 600 200 D 50 50 1 1 I
+X D6 14 -550 -150 200 R 50 50 1 1 I
+X GND 24 150 -600 200 U 50 50 1 1 I
+X Y5 15 550 -50 200 L 50 50 1 1 O
+X Y6 16 550 -150 200 L 50 50 1 1 O
+X D7 17 -550 -250 200 R 50 50 1 1 I
+X D8 18 -550 -350 200 R 50 50 1 1 I
+X Y7 19 550 -250 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# SRFF
+#
+DEF SRFF X 0 40 Y Y 1 F N
+F0 "X" -50 0 60 H V C CNN
+F1 "SRFF" 0 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 200 200 -200 0 1 0 N
+X S 1 -450 50 200 R 50 50 1 1 I
+X Clk 2 -450 -50 200 R 50 50 1 1 I C
+X R 3 -450 -150 200 R 50 50 1 1 I
+X Vdd 4 -450 150 200 R 50 50 1 1 I
+X Gnd 5 400 -150 200 L 50 50 1 1 I
+X Q 6 400 100 200 L 50 50 1 1 O
+X Q_n 7 400 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# SR_Latch_with_Enable
+#
+DEF SR_Latch_with_Enable X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "SR_Latch_with_Enable" 0 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 150 250 -150 0 1 0 N
+X Vdd 1 -450 100 200 R 50 50 1 1 I
+X E 2 -450 0 200 R 50 50 1 1 I
+X Gnd 3 450 -100 200 L 50 50 1 1 I
+X S 4 -450 -100 200 R 50 50 1 1 I
+X R 5 450 100 200 L 50 50 1 1 I
+X Out 6 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Schmitt_Trigger
+#
+DEF Schmitt_Trigger X 0 40 Y Y 1 F N
+F0 "X" 50 0 60 H V C CNN
+F1 "Schmitt_Trigger" 0 -200 60 H V C CNN
+F2 "" 250 0 60 H I C CNN
+F3 "" 250 0 60 H I C CNN
+DRAW
+P 2 0 1 0 0 50 50 50 N
+P 3 0 1 0 -150 -50 -50 -50 0 50 N
+P 3 0 1 0 -100 -50 -50 50 0 50 N
+P 4 0 1 0 -300 150 -300 -150 300 0 -300 150 N
+X in 1 -500 0 200 R 50 50 1 1 I
+X Vdd 2 -500 100 200 R 50 50 1 1 I
+X Gnd 3 -500 -100 200 R 50 50 1 1 I
+X Out 4 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# SerialParallel_blk
+#
+DEF SerialParallel_blk X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "SerialParallel_blk" 0 -300 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 250 200 -250 0 1 0 N
+X J 1 400 200 200 L 50 50 1 1 I
+X K 2 400 100 200 L 50 50 1 1 I
+X Clk 3 -500 0 200 R 50 50 1 1 I C
+X A 4 -500 100 200 R 50 50 1 1 I
+X M 5 -500 -100 200 R 50 50 1 1 I
+X M_Bar 6 -500 -200 200 R 50 50 1 1 I
+X Vdd 7 -500 200 200 R 50 50 1 1 I
+X Gnd 8 400 -200 200 L 50 50 1 1 I
+X Qa 9 400 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# TC74HC4028AP
+#
+DEF TC74HC4028AP X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "TC74HC4028AP" 0 -550 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 500 200 -500 0 1 0 N
+X VDD 1 -450 450 200 R 50 50 1 1 I
+X A_b 2 -450 250 200 R 50 50 1 1 I I
+X B_b 3 -450 50 200 R 50 50 1 1 I I
+X D_B 4 -450 -350 200 R 50 50 1 1 I I
+X A 6 -450 350 200 R 50 50 1 1 I
+X Y4 7 400 150 200 L 50 50 1 1 O
+X GND 8 400 -450 200 L 50 50 1 1 I
+X Y8 9 400 -250 200 L 50 50 1 1 O
+X Y0 10 -450 -450 200 R 50 50 1 1 O
+X Y1 10 400 450 200 L 50 50 1 1 O
+X Y7 20 400 -150 200 L 50 50 1 1 O
+X C 11 -450 -50 200 R 50 50 1 1 I
+X C_B 12 -450 -150 200 R 50 50 1 1 I I
+X Y5 13 400 50 200 L 50 50 1 1 O
+X B 14 -450 150 200 R 50 50 1 1 I
+X Y2 15 400 350 200 L 50 50 1 1 O
+X Y6 16 400 -50 200 L 50 50 1 1 O
+X Y9 17 400 -350 200 L 50 50 1 1 O
+X D 18 -450 -250 200 R 50 50 1 1 I
+X Y3 19 400 250 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# TFF_SR
+#
+DEF TFF_SR X 0 40 Y Y 1 F N
+F0 "X" -50 50 60 H V C CNN
+F1 "TFF_SR" -50 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 200 250 -200 0 1 0 N
+X VDD 1 -500 150 200 R 50 50 1 1 I
+X T 2 -500 50 200 R 50 50 1 1 I
+X CLK 3 -500 -50 200 R 50 50 1 1 I C
+X GND 4 450 -150 200 L 50 50 1 1 I
+X SET 5 450 150 200 L 50 50 1 1 I
+X RST 6 -500 -150 200 R 50 50 1 1 I
+X Q 7 450 50 200 L 50 50 1 1 O
+X Q_bar 8 450 -50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# TG_D_Latch_ctrl
+#
+DEF TG_D_Latch_ctrl X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "TG_D_Latch_ctrl" -100 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -550 200 300 -200 0 1 0 N
+X CLOCK 1 -750 50 200 R 50 50 1 1 I
+X POLARITY 2 -750 -50 200 R 50 50 1 1 I
+X VDD 3 -750 150 200 R 50 50 1 1 I
+X GND 4 -750 -150 200 R 50 50 1 1 I
+X OUT 5 500 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# UJT
+#
+DEF UJT X 0 40 Y Y 1 F N
+F0 "X" -50 -50 60 H V C CNN
+F1 "UJT" 50 -50 60 H V C CNN
+F2 "" -50 -50 60 H I C CNN
+F3 "" -50 -50 60 H I C CNN
+DRAW
+C -50 -50 206 0 1 0 N
+P 2 0 1 0 -100 100 -100 -200 N
+P 3 0 1 0 -250 0 -200 0 -100 -100 N
+P 3 0 1 0 -200 -50 -150 -50 -150 0 N
+P 3 0 1 0 -100 -150 0 -150 0 -250 N
+P 3 0 1 0 -100 50 0 50 0 150 N
+X E 1 -450 0 200 R 50 50 1 1 I
+X B1 2 0 -450 200 U 50 50 1 1 B
+X B2 3 0 350 200 D 50 50 1 1 B
+ENDDRAW
+ENDDEF
+#
+# Y0
+#
+DEF Y0 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y0" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -350 150 300 -150 0 1 0 N
+X A_b 1 -550 0 200 R 50 50 1 1 I I
+X B_b 2 -550 -100 200 R 50 50 1 1 I I
+X Gnd 3 0 -350 200 U 50 50 1 1 I
+X Vdd 4 -550 100 200 R 50 50 1 1 I
+X Y0 5 500 -100 200 L 50 50 1 1 O
+X C_b 6 500 100 200 L 50 50 1 1 I I
+X D_b 7 500 0 200 L 50 50 1 1 I I
+ENDDRAW
+ENDDEF
+#
+# Y1
+#
+DEF Y1 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y1" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 150 300 -150 0 1 0 N
+X Vdd 1 -500 100 200 R 50 50 1 1 I
+X A 2 -500 0 200 R 50 50 1 1 I
+X B_b 3 -500 -100 200 R 50 50 1 1 I I
+X Gnd 4 0 -350 200 U 50 50 1 1 I
+X C_b 5 500 100 200 L 50 50 1 1 I I
+X D_b 6 500 0 200 L 50 50 1 1 I I
+X Y1 7 500 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Y2
+#
+DEF Y2 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y2" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 150 250 -150 0 1 0 N
+X VDD 1 -500 100 200 R 50 50 1 1 I
+X A_b 2 -500 0 200 R 50 50 1 1 I I
+X B 3 -500 -100 200 R 50 50 1 1 I
+X GND 4 0 -350 200 U 50 50 1 1 I
+X C_b 5 450 100 200 L 50 50 1 1 I I
+X D_b 6 450 0 200 L 50 50 1 1 I I
+X Y2 7 450 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Y3
+#
+DEF Y3 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y3" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 150 250 -150 0 1 0 N
+X VDD 1 -450 100 200 R 50 50 1 1 I
+X A 2 -450 0 200 R 50 50 1 1 I
+X B 3 -450 -100 200 R 50 50 1 1 I
+X GND 4 0 -350 200 U 50 50 1 1 I
+X C_b 5 450 100 200 L 50 50 1 1 I I
+X D_B 6 450 0 200 L 50 50 1 1 I I
+X Y3 7 450 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Y4
+#
+DEF Y4 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y4" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 150 250 -150 0 1 0 N
+X VDD 1 -500 100 200 R 50 50 1 1 I
+X A_b 2 -500 0 200 R 50 50 1 1 I I
+X B_b 3 -500 -100 200 R 50 50 1 1 I I
+X GND 4 0 -350 200 U 50 50 1 1 I
+X C 5 450 100 200 L 50 50 1 1 I
+X D_b 6 450 0 200 L 50 50 1 1 I I
+X Y4 7 450 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Y5
+#
+DEF Y5 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y5" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 150 250 -150 0 1 0 N
+X VDD 1 -500 100 200 R 50 50 1 1 I
+X A 2 -500 0 200 R 50 50 1 1 I
+X B_b 3 -500 -100 200 R 50 50 1 1 I I
+X GND 4 0 -350 200 U 50 50 1 1 I
+X C 5 450 100 200 L 50 50 1 1 I
+X D_b 6 450 0 200 L 50 50 1 1 I I
+X Y5 7 450 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Y6
+#
+DEF Y6 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y6" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 150 250 -150 0 1 0 N
+X VDD 1 -500 100 200 R 50 50 1 1 I
+X A_b 2 -500 0 200 R 50 50 1 1 I I
+X B 3 -500 -100 200 R 50 50 1 1 I
+X GND 4 0 -350 200 U 50 50 1 1 I
+X C 5 450 100 200 L 50 50 1 1 I
+X D_B 6 450 0 200 L 50 50 1 1 I I
+X Y6 7 450 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Y7
+#
+DEF Y7 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y7" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 150 250 -150 0 1 0 N
+X VDD 1 -500 100 200 R 50 50 1 1 I
+X A 2 -500 0 200 R 50 50 1 1 I
+X B 3 -500 -100 200 R 50 50 1 1 I
+X GND 4 0 -350 200 U 50 50 1 1 I
+X C 5 450 100 200 L 50 50 1 1 I
+X D_B 6 450 0 200 L 50 50 1 1 I I
+X Y7 7 450 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Y8
+#
+DEF Y8 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y8" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 150 250 -150 0 1 0 N
+X VDD 1 -500 100 200 R 50 50 1 1 I
+X A_b 2 -500 0 200 R 50 50 1 1 I I
+X B_b 3 -500 -100 200 R 50 50 1 1 I I
+X GND 4 0 -350 200 U 50 50 1 1 I
+X C_b 5 450 100 200 L 50 50 1 1 I I
+X D 6 450 0 200 L 50 50 1 1 I
+X Y8 7 450 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Y9
+#
+DEF Y9 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "Y9" 0 -200 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 150 250 -150 0 1 0 N
+X VDD 1 -450 100 200 R 50 50 1 1 I
+X A 2 -450 0 200 R 50 50 1 1 I
+X B_b 3 -450 -100 200 R 50 50 1 1 I I
+X GND 4 0 -350 200 U 50 50 1 1 I
+X C_b 5 450 100 200 L 50 50 1 1 I I
+X D 6 450 0 200 L 50 50 1 1 I
+X Y9 7 450 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# eSim_74LS04
+#
+DEF eSim_74LS04 X 0 40 Y Y 1 F N
+F0 "X" 0 100 60 H V C CNN
+F1 "eSim_74LS04" 0 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S 350 500 -350 -500 0 1 0 N
+X ~ 1 -550 450 200 R 50 50 1 1 P
+X ~ 2 -550 300 200 R 50 50 1 1 P I
+X ~ 3 -550 150 200 R 50 50 1 1 P
+X ~ 4 -550 0 200 R 50 50 1 1 P I
+X ~ 5 -550 -150 200 R 50 50 1 1 P
+X ~ 6 -550 -300 200 R 50 50 1 1 P I
+X GND 7 -550 -450 200 R 50 50 1 1 P
+X ~ 8 550 -450 200 L 50 50 1 1 P I
+X ~ 9 550 -300 200 L 50 50 1 1 P
+X ~ 10 550 -150 200 L 50 50 1 1 P I
+X ~ 11 550 0 200 L 50 50 1 1 P
+X ~ 12 550 150 200 L 50 50 1 1 P I
+X ~ 13 550 300 200 L 50 50 1 1 P
+X VCC 14 550 450 200 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# full_adder
+#
+DEF full_adder X 0 40 Y Y 1 F N
+F0 "X" 1400 700 60 H V C CNN
+F1 "full_adder" 1400 600 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S 800 1150 1950 0 0 1 0 N
+X IN1 1 600 950 200 R 50 50 1 1 I
+X IN2 2 600 550 200 R 50 50 1 1 I
+X CIN 3 600 150 200 R 50 50 1 1 I
+X SUM 4 2150 950 200 L 50 50 1 1 O
+X COUT 5 2150 150 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# full_sub
+#
+DEF full_sub X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "full_sub" 0 0 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -550 650 450 -600 0 1 0 N
+X A 1 -750 400 200 R 50 50 1 1 I
+X B 2 -750 200 200 R 50 50 1 1 I
+X BIN 3 -750 -200 200 R 50 50 1 1 I
+X DIFF 4 650 450 200 L 50 50 1 1 O
+X BORROW 5 650 150 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# half_adder
+#
+DEF half_adder X 0 40 Y Y 1 F N
+F0 "X" 900 500 60 H V C CNN
+F1 "half_adder" 900 400 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S 500 800 1250 0 0 1 0 N
+X IN1 1 300 700 200 R 50 50 1 1 I
+X IN2 2 300 100 200 R 50 50 1 1 I
+X SUM 3 1450 700 200 L 50 50 1 1 O
+X COUT 4 1450 100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# half_sub
+#
+DEF half_sub X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "half_sub" 0 0 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -300 300 300 -300 0 1 0 N
+X A 1 -500 200 200 R 50 50 1 1 I
+X B 2 -500 -100 200 R 50 50 1 1 I
+X D 3 500 150 200 L 50 50 1 1 O
+X BORROW 4 500 -100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# lm_741
+#
+DEF lm_741 X 0 40 Y Y 1 F N
+F0 "X" -200 0 60 H V C CNN
+F1 "lm_741" -100 -250 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+P 4 0 1 0 -350 350 350 0 -350 -350 -350 350 N
+X off_null 1 -50 400 200 D 50 38 1 1 I
+X inv 2 -550 150 200 R 50 38 1 1 I
+X non_inv 3 -550 -100 200 R 50 38 1 1 I
+X v_neg 4 -150 -450 200 U 50 38 1 1 I
+X off_null 5 50 350 200 D 50 38 1 1 I
+X out 6 550 0 200 L 50 38 1 1 O
+X v_pos 7 -150 450 200 D 50 38 1 1 I
+X NC 8 150 -300 200 U 50 38 1 1 N
+ENDDRAW
+ENDDEF
+#
+# or_2
+#
+DEF or_2 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "or_2" 0 -250 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+A -450 0 250 531 -531 0 1 0 N -300 200 -300 -200
+A -154 -253 476 1079 321 0 1 0 N -300 200 250 0
+A -154 253 476 -1079 -321 0 1 0 N -300 -200 250 0
+X in1 1 -400 50 200 R 50 50 1 1 I
+X in2 2 -400 -50 200 R 50 50 1 1 I
+X vdd 3 -450 150 200 R 50 50 1 1 I
+X Gnd 4 -450 -150 200 R 50 50 1 1 I
+X out 5 450 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# tri_state
+#
+DEF tri_state X 0 40 Y Y 1 F N
+F0 "X" 100 0 60 H V C CNN
+F1 "tri_state" 150 -150 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+P 4 0 1 0 -250 150 350 0 -250 -150 -250 150 N
+X IN 1 -450 0 200 R 50 50 1 1 I
+X VDD 2 -450 100 200 R 50 50 1 1 I
+X GND 3 -450 -100 200 R 50 50 1 1 I
+X EN 4 0 300 200 D 50 50 1 1 I I
+X OUT 5 550 0 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library