summaryrefslogtreecommitdiff
path: root/library/SubcircuitLibrary/Tri_state_buffer
diff options
context:
space:
mode:
Diffstat (limited to 'library/SubcircuitLibrary/Tri_state_buffer')
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/NMOS-180nm.lib13
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/PMOS-180nm.lib11
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer-cache.lib100
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.bck7
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.cir19
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.cir.out22
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.dcm7
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.lib957
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.pro73
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.sch325
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.sub16
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer_Previous_Values.xml1
-rw-r--r--library/SubcircuitLibrary/Tri_state_buffer/analysis1
13 files changed, 1552 insertions, 0 deletions
diff --git a/library/SubcircuitLibrary/Tri_state_buffer/NMOS-180nm.lib b/library/SubcircuitLibrary/Tri_state_buffer/NMOS-180nm.lib
new file mode 100644
index 00000000..51e9b119
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/NMOS-180nm.lib
@@ -0,0 +1,13 @@
+.model CMOSN NMOS (LEVEL=8 VERSION=3.2 TNOM=27 TOX=4.1E-9 XJ=1E-7 NCH=2.3549E17 VTH0=0.3823463 K1=0.5810697
++ K2=4.774618E-3 K3=0.0431669 K3B=1.1498346 W0=1E-7 NLX=1.910552E-7 DVT0W=0 DVT1W=0 DVT2W=0
++ DVT0=1.2894824 DVT1=0.3622063 DVT2=0.0713729 U0=280.633249 UA=-1.208537E-9 UB=2.158625E-18
++ UC=5.342807E-11 VSAT=9.366802E4 A0=1.7593146 AGS=0.3939741 B0=-6.413949E-9 B1=-1E-7 KETA=-5.180424E-4
++ A1=0 A2=1 RDSW=105.5517558 PRWG=0.5 PRWB=-0.1998871 WR=1 WINT=7.904732E-10 LINT=1.571424E-8 XL=0
++ XW=-1E-8 DWG=1.297221E-9 DWB=1.479041E-9 VOFF=-0.0955434 NFACTOR=2.4358891 CIT=0 CDSC=2.4E-4 CDSCD=0
++ CDSCB=0 ETA0=3.104851E-3 ETAB=-2.512384E-5 DSUB=0.0167075 PCLM=0.8073191 PDIBLC1=0.1666161 PDIBLC2=3.112892E-3
++ PDIBLCB=-0.1 DROUT=0.7875618 PSCBE1=8E10 PSCBE2=9.213635E-10 PVAG=3.85243E-3 DELTA=0.01 RSH=6.7 MOBMOD=1
++ PRT=0 UTE=-1.5 KT1=-0.11 KT1L=0 KT2=0.022 UA1=4.31E-9 UB1=-7.61E-18 UC1=-5.6E-11 AT=3.3E4 WL=0 WLN=1
++ WW=0 WWN=1 WWL=0 LL=0 LLN=1 LW=0 LWN=1 LWL=0 CAPMOD=2 XPART=0.5 CGDO=7.08E-10 CGSO=7.08E-10 CGBO=1E-12
++ CJ=9.68858E-4 PB=0.8 MJ=0.3864502 CJSW=2.512138E-10 PBSW=0.809286 MJSW=0.1060414 CJSWG=3.3E-10 PBSWG=0.809286
++ MJSWG=0.1060414 CF=0 PVTH0=-1.192722E-3 PRDSW=-5 PK2=6.450505E-5 WKETA=-4.27294E-4 LKETA=-0.0104078
++ PU0=6.3268729 PUA=2.226552E-11 PUB=0 PVSAT=969.1480157 PETA0=1E-4 PKETA=-1.049509E-3)
diff --git a/library/SubcircuitLibrary/Tri_state_buffer/PMOS-180nm.lib b/library/SubcircuitLibrary/Tri_state_buffer/PMOS-180nm.lib
new file mode 100644
index 00000000..032b5b95
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/PMOS-180nm.lib
@@ -0,0 +1,11 @@
+.model CMOSP PMOS (LEVEL=8 VERSION=3.2 TNOM=27 TOX=4.1E-9 XJ=1E-7 NCH=4.1589E17 VTH0=-0.3938813 K1=0.5479015
++ K2=0.0360586 K3=0.0993095 K3B=5.7086622 W0=1E-6 NLX=1.313191E-7 DVT0W=0 DVT1W=0 DVT2W=0 DVT0=0.4911363
++ DVT1=0.2227356 DVT2=0.1 U0=115.6852975 UA=1.505832E-9 UB=1E-21 UC=-1E-10 VSAT=1.329694E5 A0=1.7590478
++ AGS=0.3641621 B0=3.427126E-7 B1=1.062928E-6 KETA=0.0134667 A1=0.6859506 A2=0.3506788 RDSW=168.5705677
++ PRWG=0.5 PRWB=-0.4987371 WR=1 WINT=0 LINT=3.028832E-8 XL=0 XW=-1E-8 DWG=-2.349633E-8 DWB=-7.152486E-9
++ VOFF=-0.0994037 NFACTOR=1.9424315 CIT=0 CDSC=2.4E-4 CDSCD=0 CDSCB=0 ETA0=0.0608072 ETAB=-0.0426148
++ DSUB=0.7343015 PCLM=3.2579974 PDIBLC1=7.229527E-6 PDIBLC2=0.025389 PDIBLCB=-1E-3 DROUT=0 PSCBE1=1.454878E10
++ PSCBE2=4.202027E-9 PVAG=15 DELTA=0.01 RSH=7.8 MOBMOD=1 PRT=0 UTE=-1.5 KT1=-0.11 KT1L=0 KT2=0.022 UA1=4.31E-9
++ UB1=-7.61E-18 UC1=-5.6E-11 AT=3.3E4 WL=0 WLN=1 WW=0 WWN=1 WWL=0 LL=0 LLN=1 LW=0 LWN=1 LWL=0 CAPMOD=2 XPART=0.5
++ CGDO=6.32E-10 CGSO=6.32E-10 CGBO=1E-12 CJ=1.172138E-3 PB=0.8421173 MJ=0.4109788 CJSW=2.242609E-10 PBSW=0.8 + MJSW=0.3752089 CJSWG=4.22E-10 PBSWG=0.8 MJSWG=0.3752089 CF=0 PVTH0=1.888482E-3 PRDSW=11.5315407 PK2=1.559399E-3
++ WKETA=0.0319301 LKETA=2.955547E-3 PU0=-1.1105313 PUA=-4.62102E-11 PUB=1E-21 PVSAT=50 PETA0=1E-4 PKETA=-4.346368E-3)
diff --git a/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer-cache.lib b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer-cache.lib
new file mode 100644
index 00000000..6c512720
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer-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
+#
+# eSim_MOS_N
+#
+DEF eSim_MOS_N M 0 0 Y N 1 F N
+F0 "M" 0 -150 50 H V R CNN
+F1 "eSim_MOS_N" 100 -50 50 H V R CNN
+F2 "" 300 -300 29 H V C CNN
+F3 "" 100 -200 60 H V C CNN
+ALIAS mosfet_n
+DRAW
+C 150 -200 111 0 1 10 N
+P 2 0 1 10 130 -290 130 -250 N
+P 2 0 1 0 130 -270 200 -270 N
+P 2 0 1 10 130 -220 130 -180 N
+P 2 0 1 0 130 -200 200 -200 N
+P 2 0 1 10 130 -150 130 -110 N
+P 2 0 1 0 130 -130 200 -130 N
+P 2 0 1 0 200 -300 200 -270 N
+P 2 0 1 0 200 -130 200 -100 N
+P 3 0 1 10 110 -275 110 -125 110 -125 N
+P 3 0 1 0 200 -200 300 -200 300 -250 N
+P 4 0 1 0 140 -200 180 -215 180 -185 140 -200 F
+X D 1 200 0 100 D 50 50 1 1 P
+X G 2 -100 -200 210 R 50 50 1 1 P
+X S 3 200 -400 100 U 50 50 1 1 P
+X B 4 300 -350 98 U 47 47 1 1 P
+ENDDRAW
+ENDDEF
+#
+# eSim_MOS_P
+#
+DEF eSim_MOS_P M 0 0 Y N 1 F N
+F0 "M" -50 50 50 H V R CNN
+F1 "eSim_MOS_P" 50 150 50 H V R CNN
+F2 "" 250 100 29 H V C CNN
+F3 "" 50 0 60 H V C CNN
+ALIAS mosfet_p
+DRAW
+C 100 0 111 0 1 10 N
+P 2 0 1 0 80 -70 150 -70 N
+P 2 0 1 10 80 -50 80 -90 N
+P 2 0 1 0 80 0 150 0 N
+P 2 0 1 10 80 20 80 -20 N
+P 2 0 1 0 80 70 150 70 N
+P 2 0 1 10 80 90 80 50 N
+P 2 0 1 0 150 -70 150 -100 N
+P 2 0 1 0 150 100 150 70 N
+P 3 0 1 10 60 75 60 -75 60 -75 N
+P 3 0 1 0 150 0 250 0 250 -50 N
+P 4 0 1 0 140 0 100 -15 100 15 140 0 F
+X D 1 150 200 100 D 50 50 1 1 P
+X G 2 -150 0 210 R 50 50 1 1 P
+X S 3 150 -200 100 U 50 50 1 1 P
+X B 4 250 -150 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.bck b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.bck
new file mode 100644
index 00000000..1980d0d1
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.bck
@@ -0,0 +1,7 @@
+EESchema-DOCLIB Version 2.0
+#
+$CMP SCR
+D Thyristor
+$ENDCMP
+#
+#End Doc Library
diff --git a/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.cir b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.cir
new file mode 100644
index 00000000..56c27a72
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.cir
@@ -0,0 +1,19 @@
+* C:\FOSSEE\eSim\library\SubcircuitLibrary\Tri_state_buffer\Tri_state_buffer.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 05/29/25 11:44:13
+
+* 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: /
+M2 Net-_M1-Pad1_ Net-_M1-Pad2_ Net-_M2-Pad3_ Net-_M2-Pad3_ mosfet_p
+M5 Net-_M5-Pad1_ Net-_M3-Pad2_ Net-_M5-Pad3_ Net-_M1-Pad3_ mosfet_n
+M6 Net-_M5-Pad3_ Net-_M1-Pad1_ Net-_M1-Pad3_ Net-_M1-Pad3_ mosfet_n
+M8 Net-_M5-Pad1_ Net-_M3-Pad1_ Net-_M7-Pad1_ Net-_M2-Pad3_ mosfet_p
+M7 Net-_M7-Pad1_ Net-_M1-Pad1_ Net-_M2-Pad3_ Net-_M2-Pad3_ mosfet_p
+M1 Net-_M1-Pad1_ Net-_M1-Pad2_ Net-_M1-Pad3_ Net-_M1-Pad3_ mosfet_n
+M4 Net-_M3-Pad1_ Net-_M3-Pad2_ Net-_M2-Pad3_ Net-_M2-Pad3_ mosfet_p
+M3 Net-_M3-Pad1_ Net-_M3-Pad2_ Net-_M1-Pad3_ Net-_M1-Pad3_ mosfet_n
+U1 Net-_M1-Pad2_ Net-_M3-Pad2_ Net-_M2-Pad3_ Net-_M1-Pad3_ Net-_M5-Pad1_ PORT
+
+.end
diff --git a/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.cir.out b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.cir.out
new file mode 100644
index 00000000..dc7148e0
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.cir.out
@@ -0,0 +1,22 @@
+* c:\fossee\esim\library\subcircuitlibrary\tri_state_buffer\tri_state_buffer.cir
+
+.include PMOS-180nm.lib
+.include NMOS-180nm.lib
+m2 net-_m1-pad1_ net-_m1-pad2_ net-_m2-pad3_ net-_m2-pad3_ CMOSP W=100u L=100u M=1
+m5 net-_m5-pad1_ net-_m3-pad2_ net-_m5-pad3_ net-_m1-pad3_ CMOSN W=100u L=100u M=1
+m6 net-_m5-pad3_ net-_m1-pad1_ net-_m1-pad3_ net-_m1-pad3_ CMOSN W=100u L=100u M=1
+m8 net-_m5-pad1_ net-_m3-pad1_ net-_m7-pad1_ net-_m2-pad3_ CMOSP W=100u L=100u M=1
+m7 net-_m7-pad1_ net-_m1-pad1_ net-_m2-pad3_ net-_m2-pad3_ CMOSP W=100u L=100u M=1
+m1 net-_m1-pad1_ net-_m1-pad2_ net-_m1-pad3_ net-_m1-pad3_ CMOSN W=100u L=100u M=1
+m4 net-_m3-pad1_ net-_m3-pad2_ net-_m2-pad3_ net-_m2-pad3_ CMOSP W=100u L=100u M=1
+m3 net-_m3-pad1_ net-_m3-pad2_ net-_m1-pad3_ net-_m1-pad3_ CMOSN W=100u L=100u M=1
+* u1 net-_m1-pad2_ net-_m3-pad2_ net-_m2-pad3_ net-_m1-pad3_ net-_m5-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/Tri_state_buffer/Tri_state_buffer.dcm b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.dcm
new file mode 100644
index 00000000..1980d0d1
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.dcm
@@ -0,0 +1,7 @@
+EESchema-DOCLIB Version 2.0
+#
+$CMP SCR
+D Thyristor
+$ENDCMP
+#
+#End Doc Library
diff --git a/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.lib b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.lib
new file mode 100644
index 00000000..20c5b5ea
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.lib
@@ -0,0 +1,957 @@
+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
+#
+# 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
+#
+# 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" 2450 50 60 H V C CNN
+F1 "SN74100" 2450 300 60 H V C CNN
+F2 "" 2450 300 60 H I C CNN
+F3 "" 2450 300 60 H I C CNN
+DRAW
+S 3150 -550 1750 850 0 1 0 N
+X OUT 1 3350 200 200 L 50 50 1 1 O
+X Enable_C 2 1550 -200 200 R 50 50 1 1 I
+X Data 3 1550 500 200 R 50 50 1 1 I
+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
+#
+# 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
diff --git a/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.pro b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.pro
new file mode 100644
index 00000000..e27a398b
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.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/Tri_state_buffer/Tri_state_buffer.sch b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.sch
new file mode 100644
index 00000000..beb1899d
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.sch
@@ -0,0 +1,325 @@
+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_buffer-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
+$Comp
+L mosfet_p M2
+U 1 1 6836AEEF
+P 4350 3250
+F 0 "M2" H 4300 3300 50 0000 R CNN
+F 1 "mosfet_p" H 4400 3400 50 0000 R CNN
+F 2 "" H 4600 3350 29 0000 C CNN
+F 3 "" H 4400 3250 60 0000 C CNN
+ 1 4350 3250
+ 1 0 0 1
+$EndComp
+Wire Wire Line
+ 4500 3450 4500 3850
+Wire Wire Line
+ 4200 3250 4200 4050
+Wire Wire Line
+ 4600 4200 4600 4800
+Wire Wire Line
+ 4600 3100 4600 3050
+Wire Wire Line
+ 4600 3050 4500 3050
+Connection ~ 4200 3600
+Connection ~ 4500 3550
+Wire Wire Line
+ 4550 2600 4550 3050
+Connection ~ 4550 3050
+$Comp
+L mosfet_n M5
+U 1 1 683749D7
+P 5150 3800
+F 0 "M5" H 5150 3650 50 0000 R CNN
+F 1 "mosfet_n" H 5250 3750 50 0000 R CNN
+F 2 "" H 5450 3500 29 0000 C CNN
+F 3 "" H 5250 3600 60 0000 C CNN
+ 1 5150 3800
+ 1 0 0 -1
+$EndComp
+$Comp
+L mosfet_n M6
+U 1 1 68374A1E
+P 5150 4350
+F 0 "M6" H 5150 4200 50 0000 R CNN
+F 1 "mosfet_n" H 5250 4300 50 0000 R CNN
+F 2 "" H 5450 4050 29 0000 C CNN
+F 3 "" H 5250 4150 60 0000 C CNN
+ 1 5150 4350
+ 1 0 0 -1
+$EndComp
+$Comp
+L mosfet_p M8
+U 1 1 68374A51
+P 5200 3400
+F 0 "M8" H 5150 3450 50 0000 R CNN
+F 1 "mosfet_p" H 5250 3550 50 0000 R CNN
+F 2 "" H 5450 3500 29 0000 C CNN
+F 3 "" H 5250 3400 60 0000 C CNN
+ 1 5200 3400
+ 1 0 0 1
+$EndComp
+$Comp
+L mosfet_p M7
+U 1 1 68374A9C
+P 5200 2850
+F 0 "M7" H 5150 2900 50 0000 R CNN
+F 1 "mosfet_p" H 5250 3000 50 0000 R CNN
+F 2 "" H 5450 2950 29 0000 C CNN
+F 3 "" H 5250 2850 60 0000 C CNN
+ 1 5200 2850
+ 1 0 0 1
+$EndComp
+Wire Wire Line
+ 5350 3600 5350 3800
+Wire Wire Line
+ 5350 3200 5350 3050
+Wire Wire Line
+ 5600 3250 5450 3250
+Wire Wire Line
+ 5600 2650 5600 3250
+Wire Wire Line
+ 5600 2700 5450 2700
+Wire Wire Line
+ 5350 2650 5600 2650
+Connection ~ 5600 2700
+Wire Wire Line
+ 5350 4200 5350 4350
+Wire Wire Line
+ 5450 4150 5600 4150
+Wire Wire Line
+ 5600 4150 5600 4750
+Wire Wire Line
+ 5600 4700 5450 4700
+Wire Wire Line
+ 5600 4750 5350 4750
+Connection ~ 5600 4700
+$Comp
+L mosfet_n M1
+U 1 1 6836AF30
+P 4300 3850
+F 0 "M1" H 4300 3700 50 0000 R CNN
+F 1 "mosfet_n" H 4400 3800 50 0000 R CNN
+F 2 "" H 4600 3550 29 0000 C CNN
+F 3 "" H 4400 3650 60 0000 C CNN
+ 1 4300 3850
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 3250 4800 5450 4800
+Wire Wire Line
+ 5450 4800 5450 4750
+Connection ~ 5450 4750
+Connection ~ 4950 4800
+Wire Wire Line
+ 4500 4250 4500 4350
+Wire Wire Line
+ 4500 4350 4600 4350
+Connection ~ 4600 4350
+Wire Wire Line
+ 5050 2850 4800 2850
+Wire Wire Line
+ 4800 2850 4800 4550
+Wire Wire Line
+ 4800 4550 5050 4550
+Wire Wire Line
+ 4550 2600 5450 2600
+Wire Wire Line
+ 5450 2600 5450 2650
+Connection ~ 5450 2650
+Wire Wire Line
+ 4500 3550 4800 3550
+Connection ~ 4800 3550
+$Comp
+L mosfet_p M4
+U 1 1 683753B5
+P 3100 2050
+F 0 "M4" H 3050 2100 50 0000 R CNN
+F 1 "mosfet_p" H 3150 2200 50 0000 R CNN
+F 2 "" H 3350 2150 29 0000 C CNN
+F 3 "" H 3150 2050 60 0000 C CNN
+ 1 3100 2050
+ 1 0 0 1
+$EndComp
+$Comp
+L mosfet_n M3
+U 1 1 68375452
+P 3050 2450
+F 0 "M3" H 3050 2300 50 0000 R CNN
+F 1 "mosfet_n" H 3150 2400 50 0000 R CNN
+F 2 "" H 3350 2150 29 0000 C CNN
+F 3 "" H 3150 2250 60 0000 C CNN
+ 1 3050 2450
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 3250 1800 3250 1850
+Wire Wire Line
+ 3250 1800 4700 1800
+Wire Wire Line
+ 4700 1800 4700 2600
+Connection ~ 4700 2600
+Wire Wire Line
+ 3350 1900 3350 1800
+Connection ~ 3350 1800
+Wire Wire Line
+ 3250 2250 3250 2450
+Wire Wire Line
+ 3250 2850 3250 4800
+Wire Wire Line
+ 3350 2800 3350 3050
+Wire Wire Line
+ 3350 3050 3250 3050
+Connection ~ 3250 3050
+Wire Wire Line
+ 2950 2050 2950 2650
+Connection ~ 2950 2350
+Wire Wire Line
+ 2650 2350 2650 3500
+Wire Wire Line
+ 2650 3500 3750 3500
+Wire Wire Line
+ 3750 3500 3750 3700
+Wire Wire Line
+ 3750 3700 5050 3700
+Wire Wire Line
+ 5050 3700 5050 4000
+Connection ~ 2650 2350
+Wire Wire Line
+ 3250 2350 4850 2350
+Wire Wire Line
+ 4850 2350 4850 3400
+Wire Wire Line
+ 4850 3400 5050 3400
+Connection ~ 3250 2350
+Connection ~ 5350 3700
+Wire Wire Line
+ 2450 2350 2950 2350
+Wire Wire Line
+ 4200 3600 2350 3600
+Connection ~ 4600 4800
+Wire Wire Line
+ 4950 4800 4950 5050
+Wire Wire Line
+ 4950 5050 2850 5050
+Wire Wire Line
+ 2850 5050 2850 3800
+Wire Wire Line
+ 2850 3800 2350 3800
+Wire Wire Line
+ 3750 1800 3750 1700
+Wire Wire Line
+ 3750 1700 2500 1700
+Connection ~ 3750 1800
+Wire Wire Line
+ 5350 3700 6000 3700
+$Comp
+L PORT U1
+U 3 1 6837F170
+P 2250 1700
+F 0 "U1" H 2300 1800 30 0000 C CNN
+F 1 "PORT" H 2250 1700 30 0000 C CNN
+F 2 "" H 2250 1700 60 0000 C CNN
+F 3 "" H 2250 1700 60 0000 C CNN
+ 3 2250 1700
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 1 1 6837F1DD
+P 2100 3600
+F 0 "U1" H 2150 3700 30 0000 C CNN
+F 1 "PORT" H 2100 3600 30 0000 C CNN
+F 2 "" H 2100 3600 60 0000 C CNN
+F 3 "" H 2100 3600 60 0000 C CNN
+ 1 2100 3600
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 4 1 6837F228
+P 2100 3800
+F 0 "U1" H 2150 3900 30 0000 C CNN
+F 1 "PORT" H 2100 3800 30 0000 C CNN
+F 2 "" H 2100 3800 60 0000 C CNN
+F 3 "" H 2100 3800 60 0000 C CNN
+ 4 2100 3800
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 2 1 6837F257
+P 2200 2350
+F 0 "U1" H 2250 2450 30 0000 C CNN
+F 1 "PORT" H 2200 2350 30 0000 C CNN
+F 2 "" H 2200 2350 60 0000 C CNN
+F 3 "" H 2200 2350 60 0000 C CNN
+ 2 2200 2350
+ 1 0 0 -1
+$EndComp
+$Comp
+L PORT U1
+U 5 1 6837F284
+P 6250 3700
+F 0 "U1" H 6300 3800 30 0000 C CNN
+F 1 "PORT" H 6250 3700 30 0000 C CNN
+F 2 "" H 6250 3700 60 0000 C CNN
+F 3 "" H 6250 3700 60 0000 C CNN
+ 5 6250 3700
+ -1 0 0 1
+$EndComp
+$EndSCHEMATC
diff --git a/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.sub b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.sub
new file mode 100644
index 00000000..889b0628
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer.sub
@@ -0,0 +1,16 @@
+* Subcircuit Tri_state_buffer
+.subckt Tri_state_buffer net-_m1-pad2_ net-_m3-pad2_ net-_m2-pad3_ net-_m1-pad3_ net-_m5-pad1_
+* c:\fossee\esim\library\subcircuitlibrary\tri_state_buffer\tri_state_buffer.cir
+.include PMOS-180nm.lib
+.include NMOS-180nm.lib
+m2 net-_m1-pad1_ net-_m1-pad2_ net-_m2-pad3_ net-_m2-pad3_ CMOSP W=100u L=100u M=1
+m5 net-_m5-pad1_ net-_m3-pad2_ net-_m5-pad3_ net-_m1-pad3_ CMOSN W=100u L=100u M=1
+m6 net-_m5-pad3_ net-_m1-pad1_ net-_m1-pad3_ net-_m1-pad3_ CMOSN W=100u L=100u M=1
+m8 net-_m5-pad1_ net-_m3-pad1_ net-_m7-pad1_ net-_m2-pad3_ CMOSP W=100u L=100u M=1
+m7 net-_m7-pad1_ net-_m1-pad1_ net-_m2-pad3_ net-_m2-pad3_ CMOSP W=100u L=100u M=1
+m1 net-_m1-pad1_ net-_m1-pad2_ net-_m1-pad3_ net-_m1-pad3_ CMOSN W=100u L=100u M=1
+m4 net-_m3-pad1_ net-_m3-pad2_ net-_m2-pad3_ net-_m2-pad3_ CMOSP W=100u L=100u M=1
+m3 net-_m3-pad1_ net-_m3-pad2_ net-_m1-pad3_ net-_m1-pad3_ CMOSN W=100u L=100u M=1
+* Control Statements
+
+.ends Tri_state_buffer \ No newline at end of file
diff --git a/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer_Previous_Values.xml b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer_Previous_Values.xml
new file mode 100644
index 00000000..eca7f726
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/Tri_state_buffer_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><m2><field>C:\FOSSEE\eSim\library\deviceModelLibrary\MOS\PMOS-180nm.lib</field><field /><field /><field /></m2><m5><field>C:\FOSSEE\eSim\library\deviceModelLibrary\MOS\NMOS-180nm.lib</field><field /><field /><field /></m5><m6><field>C:\FOSSEE\eSim\library\deviceModelLibrary\MOS\NMOS-180nm.lib</field><field /><field /><field /></m6><m8><field>C:\FOSSEE\eSim\library\deviceModelLibrary\MOS\PMOS-180nm.lib</field><field /><field /><field /></m8><m7><field>C:\FOSSEE\eSim\library\deviceModelLibrary\MOS\PMOS-180nm.lib</field><field /><field /><field /></m7><m1><field>C:\FOSSEE\eSim\library\deviceModelLibrary\MOS\NMOS-180nm.lib</field><field /><field /><field /></m1><m4><field>C:\FOSSEE\eSim\library\deviceModelLibrary\MOS\PMOS-180nm.lib</field><field /><field /><field /></m4><m3><field>C:\FOSSEE\eSim\library\deviceModelLibrary\MOS\NMOS-180nm.lib</field><field /><field /><field /></m3></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/Tri_state_buffer/analysis b/library/SubcircuitLibrary/Tri_state_buffer/analysis
new file mode 100644
index 00000000..ebd5c0a9
--- /dev/null
+++ b/library/SubcircuitLibrary/Tri_state_buffer/analysis
@@ -0,0 +1 @@
+.tran 0e-00 0e-00 0e-00 \ No newline at end of file