summaryrefslogtreecommitdiff
path: root/library/SubcircuitLibrary/SN7420
diff options
context:
space:
mode:
Diffstat (limited to 'library/SubcircuitLibrary/SN7420')
-rw-r--r--library/SubcircuitLibrary/SN7420/D.lib2
-rw-r--r--library/SubcircuitLibrary/SN7420/NPN.lib4
-rw-r--r--library/SubcircuitLibrary/SN7420/SN7420-cache.lib120
-rw-r--r--library/SubcircuitLibrary/SN7420/SN7420.cir43
-rw-r--r--library/SubcircuitLibrary/SN7420/SN7420.cir.out46
-rw-r--r--library/SubcircuitLibrary/SN7420/SN7420.pro73
-rw-r--r--library/SubcircuitLibrary/SN7420/SN7420.sch837
-rw-r--r--library/SubcircuitLibrary/SN7420/SN7420.sub40
-rw-r--r--library/SubcircuitLibrary/SN7420/SN7420IC.dcm7
-rw-r--r--library/SubcircuitLibrary/SN7420/SN7420IC.lib1092
-rw-r--r--library/SubcircuitLibrary/SN7420/SN7420_Previous_Values.xml1
-rw-r--r--library/SubcircuitLibrary/SN7420/analysis1
12 files changed, 2266 insertions, 0 deletions
diff --git a/library/SubcircuitLibrary/SN7420/D.lib b/library/SubcircuitLibrary/SN7420/D.lib
new file mode 100644
index 00000000..f53bf3e0
--- /dev/null
+++ b/library/SubcircuitLibrary/SN7420/D.lib
@@ -0,0 +1,2 @@
+.model 1N4148 D(is=2.495E-09 rs=4.755E-01 n=1.679E+00 tt=3.030E-09 cjo=1.700E-12 vj=1 m=1.959E-01 bv=1.000E+02 ibv=1.000E-04)
+
diff --git a/library/SubcircuitLibrary/SN7420/NPN.lib b/library/SubcircuitLibrary/SN7420/NPN.lib
new file mode 100644
index 00000000..be5f3073
--- /dev/null
+++ b/library/SubcircuitLibrary/SN7420/NPN.lib
@@ -0,0 +1,4 @@
+.model Q2N2222 NPN( Is=14.34f Xti=3 Eg=1.11 Vaf=74.03 Bf=400 Ne=1.307
++ Ise=14.34f Ikf=0.2847 Xtb=1.5 Br=6.092 Nc=2 Isc=0 Ikr=0 Rc=1 Cjc=7.306p
++ Mjc=0.3416 Vjc=0.75 Fc=0.5 Cje=22.01p Mje=0.377 Vje=0.75 Tr=46.91n Tf=411.1p
++ Itf=0.6 Vtf=1.7 Xtf=3 Rb=10)
diff --git a/library/SubcircuitLibrary/SN7420/SN7420-cache.lib b/library/SubcircuitLibrary/SN7420/SN7420-cache.lib
new file mode 100644
index 00000000..80d6c006
--- /dev/null
+++ b/library/SubcircuitLibrary/SN7420/SN7420-cache.lib
@@ -0,0 +1,120 @@
+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
+#
+# eSim_Diode
+#
+DEF eSim_Diode D 0 40 N N 1 F N
+F0 "D" 0 100 50 H V C CNN
+F1 "eSim_Diode" 0 -100 50 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ TO-???*
+ *SingleDiode
+ *_Diode_*
+ *SingleDiode*
+ D_*
+$ENDFPLIST
+DRAW
+T 0 -100 50 60 0 0 0 A Normal 0 C C
+T 0 100 50 60 0 0 0 K Normal 0 C C
+P 2 0 1 6 50 50 50 -50 N
+P 3 0 1 0 -50 50 50 0 -50 -50 F
+X A 1 -150 0 100 R 40 40 1 1 P
+X K 2 150 0 100 L 40 40 1 1 P
+ENDDRAW
+ENDDEF
+#
+# eSim_GND
+#
+DEF eSim_GND #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -250 50 H I C CNN
+F1 "eSim_GND" 0 -150 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
+X GND 1 0 0 0 D 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+# eSim_NPN
+#
+DEF eSim_NPN Q 0 0 Y N 1 F N
+F0 "Q" -100 50 50 H V R CNN
+F1 "eSim_NPN" -50 150 50 H V R CNN
+F2 "" 200 100 29 H V C CNN
+F3 "" 0 0 60 H V C CNN
+ALIAS BC547 Q2N2222
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
+X C 1 100 200 100 D 50 50 1 1 P
+X B 2 -200 0 225 R 50 50 1 1 P
+X E 3 100 -200 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# eSim_R
+#
+DEF eSim_R R 0 0 N Y 1 F N
+F0 "R" 50 130 50 H V C CNN
+F1 "eSim_R" 50 -50 50 H V C CNN
+F2 "" 50 -20 30 H V C CNN
+F3 "" 50 50 30 V V C CNN
+ALIAS resistor
+$FPLIST
+ R_*
+ Resistor_*
+$ENDFPLIST
+DRAW
+S 150 10 -50 90 0 1 10 N
+X ~ 1 -100 50 50 R 60 60 1 1 P
+X ~ 2 200 50 50 L 60 60 1 1 P
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN7420/SN7420.cir b/library/SubcircuitLibrary/SN7420/SN7420.cir
new file mode 100644
index 00000000..0f1f2233
--- /dev/null
+++ b/library/SubcircuitLibrary/SN7420/SN7420.cir
@@ -0,0 +1,43 @@
+* C:\FOSSEE\eSim\library\SubcircuitLibrary\SN7420\SN7420.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 02/11/25 17:51:11
+
+* 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: /
+R1 Net-_R1-Pad1_ Net-_Q1-Pad2_ 4k
+Q1 Net-_Q1-Pad1_ Net-_Q1-Pad2_ Net-_D1-Pad2_ eSim_NPN
+Q2 Net-_Q1-Pad1_ Net-_Q1-Pad2_ Net-_D2-Pad2_ eSim_NPN
+Q3 Net-_Q1-Pad1_ Net-_Q1-Pad2_ Net-_D3-Pad2_ eSim_NPN
+Q4 Net-_Q1-Pad1_ Net-_Q1-Pad2_ Net-_D4-Pad2_ eSim_NPN
+D1 GND Net-_D1-Pad2_ eSim_Diode
+D2 GND Net-_D2-Pad2_ eSim_Diode
+D3 GND Net-_D3-Pad2_ eSim_Diode
+D4 GND Net-_D4-Pad2_ eSim_Diode
+Q5 Net-_Q5-Pad1_ Net-_Q1-Pad1_ Net-_Q5-Pad3_ eSim_NPN
+R3 Net-_R1-Pad1_ Net-_Q5-Pad1_ 1.6k
+Q6 Net-_Q6-Pad1_ Net-_Q5-Pad1_ Net-_D5-Pad1_ eSim_NPN
+R4 Net-_R1-Pad1_ Net-_Q6-Pad1_ 130
+D5 Net-_D5-Pad1_ Net-_D5-Pad2_ eSim_Diode
+Q7 Net-_D5-Pad2_ Net-_Q5-Pad3_ GND eSim_NPN
+R2 Net-_Q5-Pad3_ GND 1k
+R5 Net-_R1-Pad1_ Net-_Q10-Pad2_ 4k
+Q8 Net-_Q10-Pad1_ Net-_Q10-Pad2_ Net-_D6-Pad2_ eSim_NPN
+Q9 Net-_Q10-Pad1_ Net-_Q10-Pad2_ Net-_D7-Pad2_ eSim_NPN
+Q10 Net-_Q10-Pad1_ Net-_Q10-Pad2_ Net-_D8-Pad2_ eSim_NPN
+Q11 Net-_Q10-Pad1_ Net-_Q10-Pad2_ Net-_D9-Pad2_ eSim_NPN
+D6 GND Net-_D6-Pad2_ eSim_Diode
+D7 GND Net-_D7-Pad2_ eSim_Diode
+D8 GND Net-_D8-Pad2_ eSim_Diode
+D9 GND Net-_D9-Pad2_ eSim_Diode
+Q12 Net-_Q12-Pad1_ Net-_Q10-Pad1_ Net-_Q12-Pad3_ eSim_NPN
+R7 Net-_R1-Pad1_ Net-_Q12-Pad1_ 1.6k
+Q13 Net-_Q13-Pad1_ Net-_Q12-Pad1_ Net-_D10-Pad1_ eSim_NPN
+R8 Net-_R1-Pad1_ Net-_Q13-Pad1_ 130
+D10 Net-_D10-Pad1_ Net-_D10-Pad2_ eSim_Diode
+Q14 Net-_D10-Pad2_ Net-_Q12-Pad3_ GND eSim_NPN
+R6 Net-_Q12-Pad3_ GND 1k
+U1 Net-_D1-Pad2_ Net-_D2-Pad2_ GND Net-_D3-Pad2_ Net-_D4-Pad2_ Net-_D5-Pad2_ GND Net-_D10-Pad2_ Net-_D6-Pad2_ Net-_D7-Pad2_ GND Net-_D8-Pad2_ Net-_D9-Pad2_ Net-_R1-Pad1_ PORT
+
+.end
diff --git a/library/SubcircuitLibrary/SN7420/SN7420.cir.out b/library/SubcircuitLibrary/SN7420/SN7420.cir.out
new file mode 100644
index 00000000..7083039c
--- /dev/null
+++ b/library/SubcircuitLibrary/SN7420/SN7420.cir.out
@@ -0,0 +1,46 @@
+* c:\fossee\esim\library\subcircuitlibrary\sn7420\sn7420.cir
+
+.include D.lib
+.include NPN.lib
+r1 net-_r1-pad1_ net-_q1-pad2_ 4k
+q1 net-_q1-pad1_ net-_q1-pad2_ net-_d1-pad2_ Q2N2222
+q2 net-_q1-pad1_ net-_q1-pad2_ net-_d2-pad2_ Q2N2222
+q3 net-_q1-pad1_ net-_q1-pad2_ net-_d3-pad2_ Q2N2222
+q4 net-_q1-pad1_ net-_q1-pad2_ net-_d4-pad2_ Q2N2222
+d1 gnd net-_d1-pad2_ 1N4148
+d2 gnd net-_d2-pad2_ 1N4148
+d3 gnd net-_d3-pad2_ 1N4148
+d4 gnd net-_d4-pad2_ 1N4148
+q5 net-_q5-pad1_ net-_q1-pad1_ net-_q5-pad3_ Q2N2222
+r3 net-_r1-pad1_ net-_q5-pad1_ 1.6k
+q6 net-_q6-pad1_ net-_q5-pad1_ net-_d5-pad1_ Q2N2222
+r4 net-_r1-pad1_ net-_q6-pad1_ 130
+d5 net-_d5-pad1_ net-_d5-pad2_ 1N4148
+q7 net-_d5-pad2_ net-_q5-pad3_ gnd Q2N2222
+r2 net-_q5-pad3_ gnd 1k
+r5 net-_r1-pad1_ net-_q10-pad2_ 4k
+q8 net-_q10-pad1_ net-_q10-pad2_ net-_d6-pad2_ Q2N2222
+q9 net-_q10-pad1_ net-_q10-pad2_ net-_d7-pad2_ Q2N2222
+q10 net-_q10-pad1_ net-_q10-pad2_ net-_d8-pad2_ Q2N2222
+q11 net-_q10-pad1_ net-_q10-pad2_ net-_d9-pad2_ Q2N2222
+d6 gnd net-_d6-pad2_ 1N4148
+d7 gnd net-_d7-pad2_ 1N4148
+d8 gnd net-_d8-pad2_ 1N4148
+d9 gnd net-_d9-pad2_ 1N4148
+q12 net-_q12-pad1_ net-_q10-pad1_ net-_q12-pad3_ Q2N2222
+r7 net-_r1-pad1_ net-_q12-pad1_ 1.6k
+q13 net-_q13-pad1_ net-_q12-pad1_ net-_d10-pad1_ Q2N2222
+r8 net-_r1-pad1_ net-_q13-pad1_ 130
+d10 net-_d10-pad1_ net-_d10-pad2_ 1N4148
+q14 net-_d10-pad2_ net-_q12-pad3_ gnd Q2N2222
+r6 net-_q12-pad3_ gnd 1k
+* u1 net-_d1-pad2_ net-_d2-pad2_ gnd net-_d3-pad2_ net-_d4-pad2_ net-_d5-pad2_ gnd net-_d10-pad2_ net-_d6-pad2_ net-_d7-pad2_ gnd net-_d8-pad2_ net-_d9-pad2_ net-_r1-pad1_ port
+.tran 0.01e-00 0.1e-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/SN7420/SN7420.pro b/library/SubcircuitLibrary/SN7420/SN7420.pro
new file mode 100644
index 00000000..e27a398b
--- /dev/null
+++ b/library/SubcircuitLibrary/SN7420/SN7420.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/SN7420/SN7420.sch b/library/SubcircuitLibrary/SN7420/SN7420.sch
new file mode 100644
index 00000000..fbe1d640
--- /dev/null
+++ b/library/SubcircuitLibrary/SN7420/SN7420.sch
@@ -0,0 +1,837 @@
+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:SN7420-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
+$Comp
+L resistor R1
+U 1 1 67AB3E79
+P 2800 2350
+F 0 "R1" H 2850 2480 50 0000 C CNN
+F 1 "4k" H 2850 2300 50 0000 C CNN
+F 2 "" H 2850 2330 30 0000 C CNN
+F 3 "" V 2850 2400 30 0000 C CNN
+ 1 2800 2350
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q1
+U 1 1 67AB3E7A
+P 2050 3200
+F 0 "Q1" H 1950 3250 50 0000 R CNN
+F 1 "eSim_NPN" H 2000 3350 50 0000 R CNN
+F 2 "" H 2250 3300 29 0000 C CNN
+F 3 "" H 2050 3200 60 0000 C CNN
+ 1 2050 3200
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q2
+U 1 1 67AB3E7B
+P 2650 3200
+F 0 "Q2" H 2550 3250 50 0000 R CNN
+F 1 "eSim_NPN" H 2600 3350 50 0000 R CNN
+F 2 "" H 2850 3300 29 0000 C CNN
+F 3 "" H 2650 3200 60 0000 C CNN
+ 1 2650 3200
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q3
+U 1 1 67AB3E7C
+P 3200 3200
+F 0 "Q3" H 3100 3250 50 0000 R CNN
+F 1 "eSim_NPN" H 3150 3350 50 0000 R CNN
+F 2 "" H 3400 3300 29 0000 C CNN
+F 3 "" H 3200 3200 60 0000 C CNN
+ 1 3200 3200
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q4
+U 1 1 67AB3E7D
+P 3700 3200
+F 0 "Q4" H 3600 3250 50 0000 R CNN
+F 1 "eSim_NPN" H 3650 3350 50 0000 R CNN
+F 2 "" H 3900 3300 29 0000 C CNN
+F 3 "" H 3700 3200 60 0000 C CNN
+ 1 3700 3200
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_Diode D1
+U 1 1 67AB3E7E
+P 1850 4350
+F 0 "D1" H 1850 4450 50 0000 C CNN
+F 1 "eSim_Diode" H 1850 4250 50 0000 C CNN
+F 2 "" H 1850 4350 60 0000 C CNN
+F 3 "" H 1850 4350 60 0000 C CNN
+ 1 1850 4350
+ 0 -1 -1 0
+$EndComp
+$Comp
+L eSim_Diode D2
+U 1 1 67AB3E7F
+P 2450 4350
+F 0 "D2" H 2450 4450 50 0000 C CNN
+F 1 "eSim_Diode" H 2450 4250 50 0000 C CNN
+F 2 "" H 2450 4350 60 0000 C CNN
+F 3 "" H 2450 4350 60 0000 C CNN
+ 1 2450 4350
+ 0 -1 -1 0
+$EndComp
+$Comp
+L eSim_Diode D3
+U 1 1 67AB3E80
+P 3000 4350
+F 0 "D3" H 3000 4450 50 0000 C CNN
+F 1 "eSim_Diode" H 3000 4250 50 0000 C CNN
+F 2 "" H 3000 4350 60 0000 C CNN
+F 3 "" H 3000 4350 60 0000 C CNN
+ 1 3000 4350
+ 0 -1 -1 0
+$EndComp
+$Comp
+L eSim_Diode D4
+U 1 1 67AB3E81
+P 3500 4350
+F 0 "D4" H 3500 4450 50 0000 C CNN
+F 1 "eSim_Diode" H 3500 4250 50 0000 C CNN
+F 2 "" H 3500 4350 60 0000 C CNN
+F 3 "" H 3500 4350 60 0000 C CNN
+ 1 3500 4350
+ 0 -1 -1 0
+$EndComp
+$Comp
+L eSim_NPN Q5
+U 1 1 67AB3E82
+P 4300 3550
+F 0 "Q5" H 4200 3600 50 0000 R CNN
+F 1 "eSim_NPN" H 4250 3700 50 0000 R CNN
+F 2 "" H 4500 3650 29 0000 C CNN
+F 3 "" H 4300 3550 60 0000 C CNN
+ 1 4300 3550
+ 1 0 0 -1
+$EndComp
+$Comp
+L resistor R3
+U 1 1 67AB3E83
+P 4550 2350
+F 0 "R3" H 4600 2480 50 0000 C CNN
+F 1 "1.6k" H 4600 2300 50 0000 C CNN
+F 2 "" H 4600 2330 30 0000 C CNN
+F 3 "" V 4600 2400 30 0000 C CNN
+ 1 4550 2350
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q6
+U 1 1 67AB3E84
+P 4950 3050
+F 0 "Q6" H 4850 3100 50 0000 R CNN
+F 1 "eSim_NPN" H 4900 3200 50 0000 R CNN
+F 2 "" H 5150 3150 29 0000 C CNN
+F 3 "" H 4950 3050 60 0000 C CNN
+ 1 4950 3050
+ 1 0 0 -1
+$EndComp
+$Comp
+L resistor R4
+U 1 1 67AB3E85
+P 5000 2350
+F 0 "R4" H 5050 2480 50 0000 C CNN
+F 1 "130" H 5050 2300 50 0000 C CNN
+F 2 "" H 5050 2330 30 0000 C CNN
+F 3 "" V 5050 2400 30 0000 C CNN
+ 1 5000 2350
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_Diode D5
+U 1 1 67AB3E86
+P 5050 3650
+F 0 "D5" H 5050 3750 50 0000 C CNN
+F 1 "eSim_Diode" H 5050 3550 50 0000 C CNN
+F 2 "" H 5050 3650 60 0000 C CNN
+F 3 "" H 5050 3650 60 0000 C CNN
+ 1 5050 3650
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q7
+U 1 1 67AB3E87
+P 4950 4150
+F 0 "Q7" H 4850 4200 50 0000 R CNN
+F 1 "eSim_NPN" H 4900 4300 50 0000 R CNN
+F 2 "" H 5150 4250 29 0000 C CNN
+F 3 "" H 4950 4150 60 0000 C CNN
+ 1 4950 4150
+ 1 0 0 -1
+$EndComp
+$Comp
+L resistor R2
+U 1 1 67AB3E88
+P 4350 4300
+F 0 "R2" H 4400 4430 50 0000 C CNN
+F 1 "1k" H 4400 4250 50 0000 C CNN
+F 2 "" H 4400 4280 30 0000 C CNN
+F 3 "" V 4400 4350 30 0000 C CNN
+ 1 4350 4300
+ 0 1 1 0
+$EndComp
+Wire Wire Line
+ 1850 3300 1850 4200
+Wire Wire Line
+ 2450 3300 2450 4200
+Wire Wire Line
+ 3000 3300 3000 4200
+Wire Wire Line
+ 3500 3300 3500 4200
+Wire Wire Line
+ 3900 3550 3900 3300
+Wire Wire Line
+ 2250 3550 4100 3550
+Wire Wire Line
+ 3400 3300 3400 3550
+Connection ~ 3900 3550
+Wire Wire Line
+ 2850 3300 2850 3550
+Connection ~ 3400 3550
+Wire Wire Line
+ 2250 3300 2250 3550
+Connection ~ 2850 3550
+Wire Wire Line
+ 4400 3750 4400 4200
+Wire Wire Line
+ 2050 3000 2050 2850
+Wire Wire Line
+ 2050 2850 3700 2850
+Wire Wire Line
+ 2850 2550 2850 3000
+Wire Wire Line
+ 2850 3000 2650 3000
+Connection ~ 2850 2850
+Wire Wire Line
+ 3200 2850 3200 3000
+Wire Wire Line
+ 3700 2850 3700 3000
+Connection ~ 3200 2850
+Wire Wire Line
+ 4400 3350 4400 3050
+Wire Wire Line
+ 4400 3050 4750 3050
+Wire Wire Line
+ 4600 2550 4600 3050
+Connection ~ 4600 3050
+Wire Wire Line
+ 5050 2550 5050 2850
+Wire Wire Line
+ 5050 3250 5050 3500
+Wire Wire Line
+ 5050 3800 5050 3950
+Wire Wire Line
+ 4750 4150 4400 4150
+Connection ~ 4400 4150
+Wire Wire Line
+ 5050 4350 5050 4650
+Wire Wire Line
+ 1850 4500 1850 4650
+Wire Wire Line
+ 1850 4650 5900 4650
+Wire Wire Line
+ 4400 4500 4400 4650
+Connection ~ 4400 4650
+Wire Wire Line
+ 2450 4500 2450 4650
+Connection ~ 2450 4650
+Wire Wire Line
+ 3000 4500 3000 4650
+Connection ~ 3000 4650
+Wire Wire Line
+ 3500 4500 3500 4650
+Connection ~ 3500 4650
+Wire Wire Line
+ 2850 2250 2850 2200
+Wire Wire Line
+ 2850 2200 5900 2200
+Wire Wire Line
+ 4600 2250 4600 2200
+Connection ~ 4600 2200
+Wire Wire Line
+ 5050 2250 5050 2200
+Connection ~ 5050 2200
+$Comp
+L eSim_GND #PWR1
+U 1 1 67AB3E89
+P 3900 4750
+F 0 "#PWR1" H 3900 4500 50 0001 C CNN
+F 1 "eSim_GND" H 3900 4600 50 0000 C CNN
+F 2 "" H 3900 4750 50 0001 C CNN
+F 3 "" H 3900 4750 50 0001 C CNN
+ 1 3900 4750
+ 1 0 0 -1
+$EndComp
+Connection ~ 3900 4650
+Wire Wire Line
+ 3900 4650 3900 4750
+Wire Wire Line
+ 5050 3850 5300 3850
+Connection ~ 5050 3850
+Wire Wire Line
+ 1850 3500 1600 3500
+Connection ~ 1850 3500
+Wire Wire Line
+ 2450 3700 1600 3700
+Connection ~ 2450 3700
+Wire Wire Line
+ 3000 3850 1600 3850
+Connection ~ 3000 3850
+Wire Wire Line
+ 3500 4050 1600 4050
+Connection ~ 3500 4050
+Connection ~ 5050 4650
+$Comp
+L resistor R5
+U 1 1 67AB3E8A
+P 7600 2300
+F 0 "R5" H 7650 2430 50 0000 C CNN
+F 1 "4k" H 7650 2250 50 0000 C CNN
+F 2 "" H 7650 2280 30 0000 C CNN
+F 3 "" V 7650 2350 30 0000 C CNN
+ 1 7600 2300
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q8
+U 1 1 67AB3E8B
+P 6850 3150
+F 0 "Q8" H 6750 3200 50 0000 R CNN
+F 1 "eSim_NPN" H 6800 3300 50 0000 R CNN
+F 2 "" H 7050 3250 29 0000 C CNN
+F 3 "" H 6850 3150 60 0000 C CNN
+ 1 6850 3150
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q9
+U 1 1 67AB3E8C
+P 7450 3150
+F 0 "Q9" H 7350 3200 50 0000 R CNN
+F 1 "eSim_NPN" H 7400 3300 50 0000 R CNN
+F 2 "" H 7650 3250 29 0000 C CNN
+F 3 "" H 7450 3150 60 0000 C CNN
+ 1 7450 3150
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q10
+U 1 1 67AB3E8D
+P 8000 3150
+F 0 "Q10" H 7900 3200 50 0000 R CNN
+F 1 "eSim_NPN" H 7950 3300 50 0000 R CNN
+F 2 "" H 8200 3250 29 0000 C CNN
+F 3 "" H 8000 3150 60 0000 C CNN
+ 1 8000 3150
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q11
+U 1 1 67AB3E8E
+P 8500 3150
+F 0 "Q11" H 8400 3200 50 0000 R CNN
+F 1 "eSim_NPN" H 8450 3300 50 0000 R CNN
+F 2 "" H 8700 3250 29 0000 C CNN
+F 3 "" H 8500 3150 60 0000 C CNN
+ 1 8500 3150
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_Diode D6
+U 1 1 67AB3E8F
+P 6650 4300
+F 0 "D6" H 6650 4400 50 0000 C CNN
+F 1 "eSim_Diode" H 6650 4200 50 0000 C CNN
+F 2 "" H 6650 4300 60 0000 C CNN
+F 3 "" H 6650 4300 60 0000 C CNN
+ 1 6650 4300
+ 0 -1 -1 0
+$EndComp
+$Comp
+L eSim_Diode D7
+U 1 1 67AB3E90
+P 7250 4300
+F 0 "D7" H 7250 4400 50 0000 C CNN
+F 1 "eSim_Diode" H 7250 4200 50 0000 C CNN
+F 2 "" H 7250 4300 60 0000 C CNN
+F 3 "" H 7250 4300 60 0000 C CNN
+ 1 7250 4300
+ 0 -1 -1 0
+$EndComp
+$Comp
+L eSim_Diode D8
+U 1 1 67AB3E91
+P 7800 4300
+F 0 "D8" H 7800 4400 50 0000 C CNN
+F 1 "eSim_Diode" H 7800 4200 50 0000 C CNN
+F 2 "" H 7800 4300 60 0000 C CNN
+F 3 "" H 7800 4300 60 0000 C CNN
+ 1 7800 4300
+ 0 -1 -1 0
+$EndComp
+$Comp
+L eSim_Diode D9
+U 1 1 67AB3E92
+P 8300 4300
+F 0 "D9" H 8300 4400 50 0000 C CNN
+F 1 "eSim_Diode" H 8300 4200 50 0000 C CNN
+F 2 "" H 8300 4300 60 0000 C CNN
+F 3 "" H 8300 4300 60 0000 C CNN
+ 1 8300 4300
+ 0 -1 -1 0
+$EndComp
+$Comp
+L eSim_NPN Q12
+U 1 1 67AB3E93
+P 9100 3500
+F 0 "Q12" H 9000 3550 50 0000 R CNN
+F 1 "eSim_NPN" H 9050 3650 50 0000 R CNN
+F 2 "" H 9300 3600 29 0000 C CNN
+F 3 "" H 9100 3500 60 0000 C CNN
+ 1 9100 3500
+ 1 0 0 -1
+$EndComp
+$Comp
+L resistor R7
+U 1 1 67AB3E94
+P 9350 2300
+F 0 "R7" H 9400 2430 50 0000 C CNN
+F 1 "1.6k" H 9400 2250 50 0000 C CNN
+F 2 "" H 9400 2280 30 0000 C CNN
+F 3 "" V 9400 2350 30 0000 C CNN
+ 1 9350 2300
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q13
+U 1 1 67AB3E95
+P 9750 3000
+F 0 "Q13" H 9650 3050 50 0000 R CNN
+F 1 "eSim_NPN" H 9700 3150 50 0000 R CNN
+F 2 "" H 9950 3100 29 0000 C CNN
+F 3 "" H 9750 3000 60 0000 C CNN
+ 1 9750 3000
+ 1 0 0 -1
+$EndComp
+$Comp
+L resistor R8
+U 1 1 67AB3E96
+P 9800 2300
+F 0 "R8" H 9850 2430 50 0000 C CNN
+F 1 "130" H 9850 2250 50 0000 C CNN
+F 2 "" H 9850 2280 30 0000 C CNN
+F 3 "" V 9850 2350 30 0000 C CNN
+ 1 9800 2300
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_Diode D10
+U 1 1 67AB3E97
+P 9850 3600
+F 0 "D10" H 9850 3700 50 0000 C CNN
+F 1 "eSim_Diode" H 9850 3500 50 0000 C CNN
+F 2 "" H 9850 3600 60 0000 C CNN
+F 3 "" H 9850 3600 60 0000 C CNN
+ 1 9850 3600
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q14
+U 1 1 67AB3E98
+P 9750 4100
+F 0 "Q14" H 9650 4150 50 0000 R CNN
+F 1 "eSim_NPN" H 9700 4250 50 0000 R CNN
+F 2 "" H 9950 4200 29 0000 C CNN
+F 3 "" H 9750 4100 60 0000 C CNN
+ 1 9750 4100
+ 1 0 0 -1
+$EndComp
+$Comp
+L resistor R6
+U 1 1 67AB3E99
+P 9150 4250
+F 0 "R6" H 9200 4380 50 0000 C CNN
+F 1 "1k" H 9200 4200 50 0000 C CNN
+F 2 "" H 9200 4230 30 0000 C CNN
+F 3 "" V 9200 4300 30 0000 C CNN
+ 1 9150 4250
+ 0 1 1 0
+$EndComp
+Wire Wire Line
+ 6650 3250 6650 4150
+Wire Wire Line
+ 7250 3250 7250 4150
+Wire Wire Line
+ 7800 3250 7800 4150
+Wire Wire Line
+ 8300 3250 8300 4150
+Wire Wire Line
+ 8700 3500 8700 3250
+Wire Wire Line
+ 7050 3500 8900 3500
+Wire Wire Line
+ 8200 3250 8200 3500
+Connection ~ 8700 3500
+Wire Wire Line
+ 7650 3250 7650 3500
+Connection ~ 8200 3500
+Wire Wire Line
+ 7050 3250 7050 3500
+Connection ~ 7650 3500
+Wire Wire Line
+ 9200 3700 9200 4150
+Wire Wire Line
+ 6850 2950 6850 2800
+Wire Wire Line
+ 6850 2800 8500 2800
+Wire Wire Line
+ 7650 2500 7650 2950
+Wire Wire Line
+ 7650 2950 7450 2950
+Connection ~ 7650 2800
+Wire Wire Line
+ 8000 2800 8000 2950
+Wire Wire Line
+ 8500 2800 8500 2950
+Connection ~ 8000 2800
+Wire Wire Line
+ 9200 3300 9200 3000
+Wire Wire Line
+ 9200 3000 9550 3000
+Wire Wire Line
+ 9400 2500 9400 3000
+Connection ~ 9400 3000
+Wire Wire Line
+ 9850 2500 9850 2800
+Wire Wire Line
+ 9850 3200 9850 3450
+Wire Wire Line
+ 9850 3750 9850 3900
+Wire Wire Line
+ 9550 4100 9200 4100
+Connection ~ 9200 4100
+Wire Wire Line
+ 9850 4300 9850 4600
+Wire Wire Line
+ 6650 4450 6650 4600
+Wire Wire Line
+ 6650 4600 10600 4600
+Wire Wire Line
+ 9200 4450 9200 4600
+Connection ~ 9200 4600
+Wire Wire Line
+ 7250 4450 7250 4600
+Connection ~ 7250 4600
+Wire Wire Line
+ 7800 4450 7800 4600
+Connection ~ 7800 4600
+Wire Wire Line
+ 8300 4450 8300 4600
+Connection ~ 8300 4600
+Wire Wire Line
+ 7650 2200 7650 2150
+Wire Wire Line
+ 7650 2150 10050 2150
+Wire Wire Line
+ 9400 2200 9400 2150
+Connection ~ 9400 2150
+Wire Wire Line
+ 9850 2200 9850 2150
+Connection ~ 9850 2150
+$Comp
+L eSim_GND #PWR2
+U 1 1 67AB3E9A
+P 8700 4700
+F 0 "#PWR2" H 8700 4450 50 0001 C CNN
+F 1 "eSim_GND" H 8700 4550 50 0000 C CNN
+F 2 "" H 8700 4700 50 0001 C CNN
+F 3 "" H 8700 4700 50 0001 C CNN
+ 1 8700 4700
+ 1 0 0 -1
+$EndComp
+Connection ~ 8700 4600
+Wire Wire Line
+ 8700 4600 8700 4700
+Wire Wire Line
+ 9850 3800 10100 3800
+Connection ~ 9850 3800
+Wire Wire Line
+ 6650 3450 6400 3450
+Connection ~ 6650 3450
+Wire Wire Line
+ 7250 3650 6400 3650
+Connection ~ 7250 3650
+Wire Wire Line
+ 7800 3800 6400 3800
+Connection ~ 7800 3800
+Wire Wire Line
+ 8300 4000 6400 4000
+Connection ~ 8300 4000
+Connection ~ 9850 4600
+$Comp
+L PORT U1
+U 7 1 67AB3FC2
+P 6800 1350
+F 0 "U1" H 6850 1450 30 0000 C CNN
+F 1 "PORT" H 6800 1350 30 0000 C CNN
+F 2 "" H 6800 1350 60 0000 C CNN
+F 3 "" H 6800 1350 60 0000 C CNN
+ 7 6800 1350
+ 0 1 1 0
+$EndComp
+$Comp
+L PORT U1
+U 8 1 67AB4038
+P 10350 3800
+F 0 "U1" H 10400 3900 30 0000 C CNN
+F 1 "PORT" H 10350 3800 30 0000 C CNN
+F 2 "" H 10350 3800 60 0000 C CNN
+F 3 "" H 10350 3800 60 0000 C CNN
+ 8 10350 3800
+ -1 0 0 1
+$EndComp
+$Comp
+L PORT U1
+U 9 1 67AB410C
+P 6150 3450
+F 0 "U1" H 6200 3550 30 0000 C CNN
+F 1 "PORT" H 6150 3450 30 0000 C CNN
+F 2 "" H 6150 3450 60 0000 C CNN
+F 3 "" H 6150 3450 60 0000 C CNN
+ 9 6150 3450
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 10 1 67AB41A1
+P 6150 3650
+F 0 "U1" H 6200 3750 30 0000 C CNN
+F 1 "PORT" H 6150 3650 30 0000 C CNN
+F 2 "" H 6150 3650 60 0000 C CNN
+F 3 "" H 6150 3650 60 0000 C CNN
+ 10 6150 3650
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 11 1 67AB4221
+P 10650 2200
+F 0 "U1" H 10700 2300 30 0000 C CNN
+F 1 "PORT" H 10650 2200 30 0000 C CNN
+F 2 "" H 10650 2200 60 0000 C CNN
+F 3 "" H 10650 2200 60 0000 C CNN
+ 11 10650 2200
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 12 1 67AB42A8
+P 6150 3800
+F 0 "U1" H 6200 3900 30 0000 C CNN
+F 1 "PORT" H 6150 3800 30 0000 C CNN
+F 2 "" H 6150 3800 60 0000 C CNN
+F 3 "" H 6150 3800 60 0000 C CNN
+ 12 6150 3800
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 13 1 67AB432E
+P 6150 4000
+F 0 "U1" H 6200 4100 30 0000 C CNN
+F 1 "PORT" H 6150 4000 30 0000 C CNN
+F 2 "" H 6150 4000 60 0000 C CNN
+F 3 "" H 6150 4000 60 0000 C CNN
+ 13 6150 4000
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 14 1 67AB43BD
+P 5900 1350
+F 0 "U1" H 5950 1450 30 0000 C CNN
+F 1 "PORT" H 5900 1350 30 0000 C CNN
+F 2 "" H 5900 1350 60 0000 C CNN
+F 3 "" H 5900 1350 60 0000 C CNN
+ 14 5900 1350
+ 0 1 1 0
+$EndComp
+$Comp
+L PORT U1
+U 1 1 67AB4449
+P 1350 3500
+F 0 "U1" H 1400 3600 30 0000 C CNN
+F 1 "PORT" H 1350 3500 30 0000 C CNN
+F 2 "" H 1350 3500 60 0000 C CNN
+F 3 "" H 1350 3500 60 0000 C CNN
+ 1 1350 3500
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 2 1 67AB4503
+P 1350 3700
+F 0 "U1" H 1400 3800 30 0000 C CNN
+F 1 "PORT" H 1350 3700 30 0000 C CNN
+F 2 "" H 1350 3700 60 0000 C CNN
+F 3 "" H 1350 3700 60 0000 C CNN
+ 2 1350 3700
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 3 1 67AB45ED
+P 850 1700
+F 0 "U1" H 900 1800 30 0000 C CNN
+F 1 "PORT" H 850 1700 30 0000 C CNN
+F 2 "" H 850 1700 60 0000 C CNN
+F 3 "" H 850 1700 60 0000 C CNN
+ 3 850 1700
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 4 1 67AB4682
+P 1350 3850
+F 0 "U1" H 1400 3950 30 0000 C CNN
+F 1 "PORT" H 1350 3850 30 0000 C CNN
+F 2 "" H 1350 3850 60 0000 C CNN
+F 3 "" H 1350 3850 60 0000 C CNN
+ 4 1350 3850
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 5 1 67AB4718
+P 1350 4050
+F 0 "U1" H 1400 4150 30 0000 C CNN
+F 1 "PORT" H 1350 4050 30 0000 C CNN
+F 2 "" H 1350 4050 60 0000 C CNN
+F 3 "" H 1350 4050 60 0000 C CNN
+ 5 1350 4050
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 6 1 67AB47B5
+P 5550 3850
+F 0 "U1" H 5600 3950 30 0000 C CNN
+F 1 "PORT" H 5550 3850 30 0000 C CNN
+F 2 "" H 5550 3850 60 0000 C CNN
+F 3 "" H 5550 3850 60 0000 C CNN
+ 6 5550 3850
+ -1 0 0 1
+$EndComp
+$Comp
+L eSim_GND #PWR?
+U 1 1 67AB8D01
+P 10950 2250
+F 0 "#PWR?" H 10950 2000 50 0001 C CNN
+F 1 "eSim_GND" H 10950 2100 50 0000 C CNN
+F 2 "" H 10950 2250 50 0001 C CNN
+F 3 "" H 10950 2250 50 0001 C CNN
+ 1 10950 2250
+ 1 0 0 -1
+$EndComp
+$Comp
+L eSim_GND #PWR?
+U 1 1 67AB8F6B
+P 1150 1750
+F 0 "#PWR?" H 1150 1500 50 0001 C CNN
+F 1 "eSim_GND" H 1150 1600 50 0000 C CNN
+F 2 "" H 1150 1750 50 0001 C CNN
+F 3 "" H 1150 1750 50 0001 C CNN
+ 1 1150 1750
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 10900 2200 10950 2200
+Wire Wire Line
+ 10950 2200 10950 2250
+Wire Wire Line
+ 1100 1700 1150 1700
+Wire Wire Line
+ 1150 1700 1150 1750
+Wire Wire Line
+ 5900 2200 5900 1600
+Wire Wire Line
+ 10050 2150 10050 2000
+Wire Wire Line
+ 10050 2000 5900 2000
+Connection ~ 5900 2000
+Wire Wire Line
+ 5900 4650 5900 2350
+Wire Wire Line
+ 5900 2350 6800 2350
+Wire Wire Line
+ 6800 2350 6800 1600
+Wire Wire Line
+ 10600 4600 10600 2750
+Wire Wire Line
+ 10600 2750 10250 2750
+Wire Wire Line
+ 10250 2750 10250 1750
+Wire Wire Line
+ 10250 1750 6800 1750
+Connection ~ 6800 1750
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/SN7420/SN7420.sub b/library/SubcircuitLibrary/SN7420/SN7420.sub
new file mode 100644
index 00000000..f07a21ea
--- /dev/null
+++ b/library/SubcircuitLibrary/SN7420/SN7420.sub
@@ -0,0 +1,40 @@
+* Subcircuit SN7420
+.subckt SN7420 net-_d1-pad2_ net-_d2-pad2_ gnd net-_d3-pad2_ net-_d4-pad2_ net-_d5-pad2_ gnd net-_d10-pad2_ net-_d6-pad2_ net-_d7-pad2_ gnd net-_d8-pad2_ net-_d9-pad2_ net-_r1-pad1_
+* c:\fossee\esim\library\subcircuitlibrary\sn7420\sn7420.cir
+.include D.lib
+.include NPN.lib
+r1 net-_r1-pad1_ net-_q1-pad2_ 4k
+q1 net-_q1-pad1_ net-_q1-pad2_ net-_d1-pad2_ Q2N2222
+q2 net-_q1-pad1_ net-_q1-pad2_ net-_d2-pad2_ Q2N2222
+q3 net-_q1-pad1_ net-_q1-pad2_ net-_d3-pad2_ Q2N2222
+q4 net-_q1-pad1_ net-_q1-pad2_ net-_d4-pad2_ Q2N2222
+d1 gnd net-_d1-pad2_ 1N4148
+d2 gnd net-_d2-pad2_ 1N4148
+d3 gnd net-_d3-pad2_ 1N4148
+d4 gnd net-_d4-pad2_ 1N4148
+q5 net-_q5-pad1_ net-_q1-pad1_ net-_q5-pad3_ Q2N2222
+r3 net-_r1-pad1_ net-_q5-pad1_ 1.6k
+q6 net-_q6-pad1_ net-_q5-pad1_ net-_d5-pad1_ Q2N2222
+r4 net-_r1-pad1_ net-_q6-pad1_ 130
+d5 net-_d5-pad1_ net-_d5-pad2_ 1N4148
+q7 net-_d5-pad2_ net-_q5-pad3_ gnd Q2N2222
+r2 net-_q5-pad3_ gnd 1k
+r5 net-_r1-pad1_ net-_q10-pad2_ 4k
+q8 net-_q10-pad1_ net-_q10-pad2_ net-_d6-pad2_ Q2N2222
+q9 net-_q10-pad1_ net-_q10-pad2_ net-_d7-pad2_ Q2N2222
+q10 net-_q10-pad1_ net-_q10-pad2_ net-_d8-pad2_ Q2N2222
+q11 net-_q10-pad1_ net-_q10-pad2_ net-_d9-pad2_ Q2N2222
+d6 gnd net-_d6-pad2_ 1N4148
+d7 gnd net-_d7-pad2_ 1N4148
+d8 gnd net-_d8-pad2_ 1N4148
+d9 gnd net-_d9-pad2_ 1N4148
+q12 net-_q12-pad1_ net-_q10-pad1_ net-_q12-pad3_ Q2N2222
+r7 net-_r1-pad1_ net-_q12-pad1_ 1.6k
+q13 net-_q13-pad1_ net-_q12-pad1_ net-_d10-pad1_ Q2N2222
+r8 net-_r1-pad1_ net-_q13-pad1_ 130
+d10 net-_d10-pad1_ net-_d10-pad2_ 1N4148
+q14 net-_d10-pad2_ net-_q12-pad3_ gnd Q2N2222
+r6 net-_q12-pad3_ gnd 1k
+* Control Statements
+
+.ends SN7420 \ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN7420/SN7420IC.dcm b/library/SubcircuitLibrary/SN7420/SN7420IC.dcm
new file mode 100644
index 00000000..763f9bcf
--- /dev/null
+++ b/library/SubcircuitLibrary/SN7420/SN7420IC.dcm
@@ -0,0 +1,7 @@
+EESchema-DOCLIB Version 2.0
+#
+$CMP SCR
+D Thyristor
+$ENDCMP
+#
+#End Doc Library
diff --git a/library/SubcircuitLibrary/SN7420/SN7420IC.lib b/library/SubcircuitLibrary/SN7420/SN7420IC.lib
new file mode 100644
index 00000000..49ec8dd2
--- /dev/null
+++ b/library/SubcircuitLibrary/SN7420/SN7420IC.lib
@@ -0,0 +1,1092 @@
+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
+#
+# AD823
+#
+DEF AD823 X 0 40 Y Y 1 F N
+F0 "X" -7 -446 60 H V C CNN
+F1 "AD823" -23 404 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -273 352 255 -372 0 1 0 N
+X +IN1 ~ -473 -76 200 R 50 50 1 1 I
+X +IN2 ~ 457 -218 200 L 50 50 1 1 I
+X +Vs ~ 459 254 200 L 50 50 1 1 I
+X -IN1 ~ -477 94 200 R 50 50 1 1 I
+X -IN2 ~ 457 -74 200 L 50 50 1 1 I
+X -Vs ~ -477 -230 200 R 50 50 1 1 I
+X OUT1 ~ -477 242 200 R 50 50 1 1 O
+X OUT2 ~ 457 100 200 L 50 50 1 1 O
+X ~ ~ -477 244 200 R 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
+#
+# 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
+#
+# L601
+#
+DEF L601 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "L601" 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 -400 800 400 -650 0 1 0 N
+X IN1 1 -600 650 200 R 50 50 1 1 I
+X IN2 2 -600 500 200 R 50 50 1 1 I
+X IN3 3 -600 350 200 R 50 50 1 1 I
+X IN4 4 -600 200 200 R 50 50 1 1 I
+X IN5 5 -600 50 200 R 50 50 1 1 I
+X IN6 6 -600 -100 200 R 50 50 1 1 I
+X IN7 7 -600 -250 200 R 50 50 1 1 I
+X IN8 8 -600 -400 200 R 50 50 1 1 I
+X GND 9 -600 -550 200 R 50 50 1 1 I
+X COM 10 600 -550 200 L 50 50 1 1 O
+X OUT8 11 600 -400 200 L 50 50 1 1 O
+X OUT7 12 600 -250 200 L 50 50 1 1 O
+X OUT6 13 600 -100 200 L 50 50 1 1 O
+X OUT5 14 600 50 200 L 50 50 1 1 O
+X OUT4 15 600 200 200 L 50 50 1 1 O
+X OUT3 16 600 350 200 L 50 50 1 1 O
+X OUT2 17 600 500 200 L 50 50 1 1 O
+X OUT1 18 600 650 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# LM2940
+#
+DEF LM2940 X 0 40 Y Y 1 F N
+F0 "X" 0 50 60 H V C CNN
+F1 "LM2940" 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 -250 200 250 -200 0 1 0 N
+X IN 1 -450 0 200 R 50 50 1 1 I
+X OUT 2 450 0 200 L 50 50 1 1 O
+X GND 3 0 -400 200 U 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# LM2941
+#
+DEF LM2941 X 0 40 Y Y 1 F N
+F0 "X" 50 -250 60 H V C CNN
+F1 "LM2941" 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 -300 450 350 -400 0 1 0 N
+X ON/OFF 1 -500 350 200 R 50 50 1 1 I
+X GND 2 -500 150 200 R 50 50 1 1 I
+X IN 3 -500 -50 200 R 50 50 1 1 I
+X NC 4 -500 -250 200 R 50 50 1 1 I
+X OUT 5 550 -250 200 L 50 50 1 1 O
+X NC 6 550 -50 200 L 50 50 1 1 I
+X GND 7 550 150 200 L 50 50 1 1 I
+X ADJ 8 550 350 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# LM431
+#
+DEF LM431 X 0 40 Y Y 1 F N
+F0 "X" 15 -160 60 H V C CNN
+F1 "LM431" 11 30 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -200 150 200 -250 0 1 0 N
+X REF 1 400 -50 200 L 50 50 1 1 I
+X - 2 -400 -50 200 R 50 50 1 1 I
+X + 3 0 350 200 D 50 50 1 1 I
+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
+#
+# LM567
+#
+DEF LM567 X 0 40 Y Y 1 F N
+F0 "X" 0 -300 60 H V C CNN
+F1 "LM567" 50 350 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -200 300 200 -250 0 1 0 N
+X OUT_FIL 1 -400 200 200 R 50 50 1 1 I
+X LOOP_FIL 2 -400 100 200 R 50 50 1 1 I
+X INP 3 -400 0 200 R 50 50 1 1 I
+X V+ 4 -400 -100 200 R 50 50 1 1 I
+X TIM_RES 5 400 -100 200 L 50 50 1 1 I
+X TIM_CAP 6 400 0 200 L 50 50 1 1 I
+X GND 7 400 100 200 L 50 50 1 1 I
+X OUT 8 400 200 200 L 50 50 1 1 O
+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
+#
+# LP2954
+#
+DEF LP2954 X 0 40 Y Y 1 F N
+F0 "X" -100 -50 60 H V C CNN
+F1 "LP2954" -6 155 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 -100 0 1 0 N
+S 250 0 250 100 0 1 0 N
+X IN 1 -450 50 200 R 50 50 1 1 I
+X GND 2 0 -300 200 U 50 50 1 1 O
+X OUT 3 450 50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# LT138
+#
+DEF LT138 X 0 40 Y Y 1 F N
+F0 "X" -100 -100 60 H V C CNN
+F1 "LT138" 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 -250 250 250 -200 0 1 0 N
+X VIN 1 -450 50 200 R 50 50 1 1 I
+X VOUT 2 450 50 200 L 50 50 1 1 O
+X ADJ 3 0 -400 200 U 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
+#
+# NE592
+#
+DEF NE592 X 0 40 Y Y 1 F N
+F0 "X" 0 -500 60 H V C CNN
+F1 "NE592" 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 -600 800 650 -750 0 1 0 N
+X IN+ 1 -800 600 200 R 50 50 1 1 I
+X NC 2 -800 400 200 R 50 50 1 1 I
+X Gain_adj_2A 3 -800 200 200 R 50 50 1 1 I
+X Gain_adj_1A 4 -800 0 200 R 50 50 1 1 I
+X VCC- 5 -800 -200 200 R 50 50 1 1 I
+X NC 6 -800 -400 200 R 50 50 1 1 I
+X OUT+ 7 -800 -600 200 R 50 50 1 1 O
+X OUT- 8 850 -600 200 L 50 50 1 1 O
+X NC 9 850 -400 200 L 50 50 1 1 I
+X VCC+ 10 850 -200 200 L 50 50 1 1 I
+X Gain_adj_1B 11 850 0 200 L 50 50 1 1 I
+X Gain_adj_2B 12 850 200 200 L 50 50 1 1 I
+X NC 13 850 400 200 L 50 50 1 1 I
+X IN- 14 850 600 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# OP470
+#
+DEF OP470 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "OP470" 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 -300 550 300 -400 0 1 0 N
+X OUTA 1 -500 450 200 R 50 50 1 1 O
+X -INA 2 -500 300 200 R 50 50 1 1 I
+X +INA 3 -500 150 200 R 50 50 1 1 I
+X V+ 4 -500 50 200 R 50 50 1 1 I
+X +INB 5 -500 -50 200 R 50 50 1 1 I
+X -INB 6 -500 -150 200 R 50 50 1 1 I
+X OUTB 7 -500 -250 200 R 50 50 1 1 O
+X OUTC 8 500 -250 200 L 50 50 1 1 O
+X -INC 9 500 -150 200 L 50 50 1 1 I
+X +INC 10 500 -50 200 L 50 50 1 1 I
+X V- 11 500 50 200 L 50 50 1 1 I
+X +IND 12 500 150 200 L 50 50 1 1 I
+X -IND 13 500 300 200 L 50 50 1 1 I
+X OUTD 14 500 450 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# OP470.1
+#
+DEF OP470.1 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "OP470.1" -21 342 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -250 450 250 -150 0 1 0 N
+X -IN 1 -450 300 200 R 50 50 1 1 I
+X +IN 2 -450 150 200 R 50 50 1 1 I
+X V+ 3 -450 0 200 R 50 50 1 1 I
+X V- 4 450 0 200 L 50 50 1 1 I
+X OUT 5 450 250 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# OPA627
+#
+DEF OPA627 X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "OPA627" 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 -300 500 300 -400 0 1 0 N
+X OFF_TRIM 1 -500 350 200 R 50 50 1 1 I
+X -IN 2 -500 150 200 R 50 50 1 1 I
+X +IN 3 -500 -50 200 R 50 50 1 1 I
+X -Vs 4 -500 -250 200 R 50 50 1 1 I
+X OFF_TRIM 5 500 -250 200 L 50 50 1 1 I
+X OUT 6 500 -50 200 L 50 50 1 1 O
+X +Vs 7 500 150 200 L 50 50 1 1 I
+X NC 8 500 350 200 L 50 50 1 1 I
+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
+#
+# SN54125
+#
+DEF SN54125 X 0 40 Y Y 1 F N
+F0 "X" 0 -400 60 H V C CNN
+F1 "SN54125" 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 -450 600 500 -550 0 1 0 N
+X 1CON_IN_G 1 -650 500 200 R 50 50 1 1 I
+X 1IN 2 -650 350 200 R 50 50 1 1 I
+X 1OUT 3 -650 200 200 R 50 50 1 1 O
+X 2CON_IN_G 4 -650 50 200 R 50 50 1 1 I
+X 2IN 5 -650 -100 200 R 50 50 1 1 I
+X 2OUT 6 -650 -250 200 R 50 50 1 1 O
+X GND 7 -650 -400 200 R 50 50 1 1 I
+X 3OUT 8 700 -400 200 L 50 50 1 1 O
+X 3IN 9 700 -250 200 L 50 50 1 1 I
+X 3CON_IN_G 10 700 -100 200 L 50 50 1 1 I
+X 4OUT 11 700 50 200 L 50 50 1 1 O
+X 4IN 12 700 200 200 L 50 50 1 1 I
+X 4CON_IN_G 13 700 350 200 L 50 50 1 1 I
+X Vcc 14 700 500 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# SN74125
+#
+DEF SN74125 X 0 40 Y Y 1 F N
+F0 "X" 0 -400 60 H V C CNN
+F1 "SN74125" 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 -450 600 500 -550 0 1 0 N
+X 1CON_IN_G 1 -650 500 200 R 50 50 1 1 I
+X 1IN 2 -650 350 200 R 50 50 1 1 I
+X 1OUT 3 -650 200 200 R 50 50 1 1 O
+X 2CON_IN_G 4 -650 50 200 R 50 50 1 1 I
+X 2IN 5 -650 -100 200 R 50 50 1 1 I
+X 2OUT 6 -650 -250 200 R 50 50 1 1 O
+X GND 7 -650 -400 200 R 50 50 1 1 I
+X 3OUT 8 700 -400 200 L 50 50 1 1 O
+X 3IN 9 700 -250 200 L 50 50 1 1 I
+X 3CON_IN_G 10 700 -100 200 L 50 50 1 1 I
+X 4OUT 11 700 50 200 L 50 50 1 1 O
+X 4IN 12 700 200 200 L 50 50 1 1 I
+X 4CON_IN_G 13 700 350 200 L 50 50 1 1 I
+X Vcc 14 700 500 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# SN7420
+#
+DEF SN7420 X 0 40 Y Y 1 F N
+F0 "X" 0 -300 60 H V C CNN
+F1 "SN7420" 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 -300 450 300 -400 0 1 0 N
+X 1A 1 -500 300 200 R 50 50 1 1 I
+X 1B 2 -500 200 200 R 50 50 1 1 I
+X NC 3 -500 100 200 R 50 50 1 1 I
+X 1C 4 -500 0 200 R 50 50 1 1 I
+X 1D 5 -500 -100 200 R 50 50 1 1 I
+X 1Y 6 -500 -200 200 R 50 50 1 1 O
+X GND 7 -500 -300 200 R 50 50 1 1 I
+X 2Y 8 500 -300 200 L 50 50 1 1 O
+X 2A 9 500 -200 200 L 50 50 1 1 I
+X 2B 10 500 -100 200 L 50 50 1 1 I
+X NC 11 500 0 200 L 50 50 1 1 I
+X 2C 12 500 100 200 L 50 50 1 1 I
+X 2D 13 500 200 200 L 50 50 1 1 I
+X Vcc 14 500 300 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# TL783
+#
+DEF TL783 X 0 40 Y Y 1 F N
+F0 "X" -100 0 60 H V C CNN
+F1 "TL783" -50 100 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -200 250 200 -100 0 1 0 N
+X IN 1 0 450 200 D 50 50 1 1 I
+X OUT 2 400 100 200 L 50 50 1 1 O
+X ADJ 3 0 -300 200 U 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# TLC2272
+#
+DEF TLC2272 X 0 40 Y Y 1 F N
+F0 "X" 50 0 60 H V C CNN
+F1 "TLC2272" 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 IN- 1 -450 100 200 R 50 50 1 1 I
+X IN+ 2 -450 0 200 R 50 50 1 1 I
+X VDD+ 3 -450 -100 200 R 50 50 1 1 I
+X VDD- 4 450 -100 200 L 50 50 1 1 I
+X OUT 5 450 100 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# UA741
+#
+DEF UA741 X 0 40 Y Y 1 F N
+F0 "X" 0 -200 60 H V C CNN
+F1 "UA741" 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 -250 0 1 0 N
+S 250 250 250 300 0 1 0 N
+X OFF_NULL1 1 -450 250 200 R 50 50 1 1 I
+X INV_INP 2 -450 150 200 R 50 50 1 1 I
+X NON-INV_INP 3 -450 0 200 R 50 50 1 1 I
+X Vcc- 4 -450 -100 200 R 50 50 1 1 I
+X OFF_NULL2 5 450 -100 200 L 50 50 1 1 I
+X OUT 6 450 0 200 L 50 50 1 1 I
+X Vcc+ 7 450 150 200 L 50 50 1 1 I
+X NC 8 450 250 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# UA748
+#
+DEF UA748 X 0 40 Y Y 1 F N
+F0 "X" 0 -300 60 H V C CNN
+F1 "UA748" 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 -250 250 250 -450 0 1 0 N
+S 250 -50 250 -350 0 1 0 N
+X COM 1 -450 150 200 R 50 50 1 1 I
+X INV_INP 2 -450 0 200 R 50 50 1 1 I
+X NON_INV_INP 3 -450 -200 200 R 50 50 1 1 I
+X Vcc- 4 -450 -350 200 R 50 50 1 1 I
+X NULL 5 450 -350 200 L 50 50 1 1 I
+X OUT 6 450 -200 200 L 50 50 1 1 O
+X Vcc+ 7 450 0 200 L 50 50 1 1 I
+X COM 8 450 150 200 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
+#
+# uA308
+#
+DEF uA308 X 0 40 Y Y 1 F N
+F0 "X" 100 -400 60 H V C CNN
+F1 "uA308" 50 400 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+S -200 300 350 -300 0 1 0 N
+X comp1 1 -400 200 200 R 50 50 1 1 I
+X -IN 2 -400 50 200 R 50 50 1 1 I
+X +IN 3 -400 -100 200 R 50 50 1 1 I
+X V- 4 -400 -250 200 R 50 50 1 1 I
+X NC 5 550 -250 200 L 50 50 1 1 I
+X OUT 6 550 -100 200 L 50 50 1 1 O
+X V+ 7 550 50 200 L 50 50 1 1 I
+X comp2 8 550 200 200 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/SN7420/SN7420_Previous_Values.xml b/library/SubcircuitLibrary/SN7420/SN7420_Previous_Values.xml
new file mode 100644
index 00000000..9120a6ce
--- /dev/null
+++ b/library/SubcircuitLibrary/SN7420/SN7420_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">0</field1><field2 name="Step Time">0.01</field2><field3 name="Stop Time">0.1</field3><field4 name="Start Combo">sec</field4><field5 name="Step Combo">sec</field5><field6 name="Stop Combo">sec</field6></tran></analysis><source /><model /><devicemodel><q1><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q1><q2><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q2><q3><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q3><q4><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q4><d1><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Diode\D.lib</field></d1><d2><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Diode\D.lib</field></d2><d3><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Diode\D.lib</field></d3><d4><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Diode\D.lib</field></d4><q5><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q5><q6><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q6><d5><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Diode\D.lib</field></d5><q7><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q7><q8><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q8><q9><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q9><q10><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q10><q11><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q11><d6><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Diode\D.lib</field></d6><d7><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Diode\D.lib</field></d7><d8><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Diode\D.lib</field></d8><d9><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Diode\D.lib</field></d9><q12><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q12><q13><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q13><d10><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Diode\D.lib</field></d10><q14><field>C:\FOSSEE\eSim\library\deviceModelLibrary\Transistor\NPN.lib</field></q14></devicemodel><subcircuit /></KicadtoNgspice> \ No newline at end of file
diff --git a/library/SubcircuitLibrary/SN7420/analysis b/library/SubcircuitLibrary/SN7420/analysis
new file mode 100644
index 00000000..f709edd1
--- /dev/null
+++ b/library/SubcircuitLibrary/SN7420/analysis
@@ -0,0 +1 @@
+.tran 0.01e-00 0.1e-00 0e-00 \ No newline at end of file
generated by cgit (git 2.34.1) at 2025-07-05 01:37:13 +0000