* SPICE netlist
VCC VCC 0 {VCC}
Q9 N009 N010 N011 0 2N3904
R168 N006 N008 810
R169 N005 N007 1k
R171 N011 N016 15
R174 I1 N010 22
V_BIT5 A_IN N004 PULSE(0 {VH-VL} 0 {rise} {rise} {1/freq/2-rise} {1/freq} {256*reps}) AC {VH}
A11 _B_IN N004 A_IN N004 N004 _B_IN B_IN N004 DFLOP Vhigh={VH-VL}
A13 _C_IN N004 B_IN N004 N004 _C_IN C_IN N004 DFLOP Vhigh={VH-VL}
A15 N002 N004 N001 N004 N004 N002 _AND_EN N004 DFLOP Vhigh={VH-VL}
A16 N003 N004 _AND_EN N004 N004 N003 _OR_EN N004 DFLOP Vhigh={VH-VL}
A14 _ADD_EN N004 C_IN N004 N004 _ADD_EN N001 N004 DFLOP Vhigh={VH-VL}
R107 COUT_1 _AND_EN 1m
R109 COUT_0 N001 1m
R11 B_IN D 1m
R12 _B_IN _D 1m
R26 A_IN EN 1m
Q1 N007 N008 N009 0 2N3904
R1 N008 N011 100
D1 0 N016 1N4148
VCC_NEG 0 N017 12
R3 N017 N016 180
VCC_12 N005 0 30
V_IN I1 0 PULSE(0 3 0 1n 1n 24n 50n 1000)
VCC_1 N006 0 12
R2 I1 0 75
R4 _O1 N007 220
R5 0 _O1 10k
Q2 O1 N023 N029 0 2N3904
R8 N029 0 1m
R9 IN N023 200
R24 N013 VCC 1m
V_IN1 IN 0 PULSE({VL} {VH} 0 1n 1n 24n 50n 1000)
D2 N023 O1 BAT54
R13 O1 N023 1k
R21 N013 O1 500
R7 N023 N036 20
D7 N036 0 1N914
Q3 O2 N024 N030 0 2N3904
R6 N030 0 1m
R10 O1 N024 200
D3 N024 O2 BAT54
R14 O2 N024 1k
R15 N013 O2 500
R16 N024 N037 20
D4 N037 0 1N914
Q4 O3 N025 N031 0 2N3904
R17 N031 0 1m
R18 O2 N025 200
D5 N025 O3 BAT54
R19 O3 N025 1k
R20 N013 O3 500
R22 N025 N038 20
D6 N038 0 1N914
Q5 O4 N026 N032 0 2N3904
R23 N032 0 1m
R25 O3 N026 200
D8 N026 O4 BAT54
R27 O4 N026 1k
R28 N013 O4 500
R29 N026 N039 20
D9 N039 0 1N914
Q6 S1 N045 N051 0 2N3904
R30 N051 0 1m
R31 IN N045 100
VCC_3 N042 0 3
R32 N043 N042 1m
D10 N045 S1 BAT54
R33 S1 N045 1k
R34 N043 S1 500
R35 N045 N054 20
D11 N054 0 1N914
R36 N043 N048 1m
R37 IN N049 100
D12 S2 N049 BAT54
R38 N049 S2 1k
R39 S2 0 500
R40 N044 N049 20
D13 N044 N043 1N914
Q8 S3 N046 N052 0 2N3904
R41 N052 0 1m
R42 N050 N046 100
D14 N046 S3 BAT54
R43 S3 N046 1k
R44 N043 S3 500
R45 N046 N055 20
D15 N055 0 1N914
Q10 S4 N047 N053 0 2N3904
R46 N053 0 1m
R47 S3 N047 100
D16 N047 S4 BAT54
R48 S4 N047 1k
R49 N043 S4 500
R50 N047 N056 20
D17 N056 0 1N914
Q7 S2 N049 N048 0 2N3906
Q11 _O N028 N034 0 2N3904
R51 N034 0 1m
R52 O N028 100
D18 N028 _O BAT54
R53 _O N028 1k
R54 N012 _O 500
R55 N028 N041 20
D19 N041 0 1N914
Q12 O N027 N033 0 2N3904
R56 N033 0 1m
R57 _O N027 100
D20 N027 O BAT54
R58 O N027 1k
R59 N012 O 500
R60 N027 N040 20
D21 N040 0 1N914
Q13 0 N019 O 0 2N3906
Q14 0 N020 _O 0 2N3906
R61 N019 _B_IN 100
R62 N014 C_IN 100
R64 B_IN N020 100
Q17 N012 N014 N019 0 2N3904
R63 N015 C_IN 100
Q15 N012 N015 N020 0 2N3904
Q16 _OO N018 0 0 2N3904
R65 N012 _OO 2k
Q18 NC_06 N022 0 0 2N3904
R66 N012 NC_07 1k
R67 N021 N018 2k
R68 N022 NC_08 1k
R70 N022 0 1k
D22 N018 _OO BAT54
R71 N012 VCC 1m
VCC1 N004 0 {VL}
R72 NC_09 0 2k
Q19 N035 N035 0 0 2N3904
R69 VCC N035 10k
Q21 N012 O N021 0 2N3904
R73 N021 0 1k
.param VCC=5
.param freq=20mega
.param rise=1n
.param reps=1
.param Rb=200
.tran 500n
.step temp -25 125 25
;.step param VH 1 2.5 0.1
.param VH=1.5
.param VL=0.0

* LTspice schematic (.asc)
Version 4
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WIRE -2448 1664 -2448 1552
WIRE -2448 1664 -2496 1664
WIRE -2368 1664 -2448 1664
WIRE -2272 1664 -2368 1664
WIRE -2064 1664 -2272 1664
WIRE -1632 1664 -1808 1664
WIRE -1504 1664 -1552 1664
WIRE -1456 1664 -1456 1520
WIRE -1456 1664 -1504 1664
WIRE -1392 1664 -1392 1552
WIRE -1392 1664 -1456 1664
WIRE -1120 1664 -1392 1664
WIRE -880 1664 -880 1408
WIRE -704 1664 -880 1664
WIRE -576 1664 -624 1664
WIRE -528 1664 -528 1520
WIRE -528 1664 -576 1664
WIRE -464 1664 -464 1552
WIRE -464 1664 -528 1664
WIRE -192 1664 -464 1664
WIRE -2368 1760 -2368 1664
WIRE -2272 1808 -2272 1664
WIRE -2176 1808 -2272 1808
WIRE -2000 1808 -2000 1712
WIRE -2000 1808 -2112 1808
WIRE -4176 1840 -4176 1200
WIRE -2000 1840 -2000 1808
WIRE -1888 1840 -2000 1840
WIRE -1808 1840 -1888 1840
WIRE -3376 1872 -3376 1664
WIRE -1504 1872 -1504 1664
WIRE -576 1872 -576 1664
WIRE -2368 1920 -2368 1840
WIRE -2000 1920 -2000 1840
WIRE -2000 1920 -2368 1920
WIRE -2928 2064 -2928 1712
WIRE -2000 2064 -2000 1920
WIRE -1056 2064 -1056 1712
WIRE -128 2064 -128 1712
WIRE -3376 2160 -3376 1952
WIRE -1504 2160 -1504 1952
WIRE -576 2160 -576 1952
WIRE -4176 2496 -4176 1920
WIRE -3488 2496 -4176 2496
WIRE -3376 2496 -3376 2224
WIRE -3376 2496 -3488 2496
WIRE -2928 2496 -2928 2144
WIRE -2928 2496 -3376 2496
WIRE -2000 2496 -2000 2144
WIRE -2000 2496 -2928 2496
WIRE -1504 2496 -1504 2224
WIRE -1504 2496 -2000 2496
WIRE -1056 2496 -1056 2144
WIRE -1056 2496 -1504 2496
WIRE -576 2496 -576 2224
WIRE -576 2496 -1056 2496
WIRE -128 2496 -128 2144
WIRE -128 2496 -576 2496
WIRE -3488 2544 -3488 2496
FLAG -5936 -2096 0
FLAG -5936 -2224 VCC
FLAG -5536 -240 0
FLAG -5408 -2208 A_IN
FLAG -5008 -2208 B_IN
FLAG -4656 -2208 C_IN
FLAG -4384 -2368 _ADD_EN
FLAG -3808 -2208 _AND_EN
FLAG -3392 -2208 _OR_EN
FLAG -4016 -2496 COUT_0
FLAG -3552 -2528 COUT_1
FLAG -5056 -2288 _B_IN
FLAG -2704 -1264 EN
FLAG -2704 -1184 _D
FLAG -2704 -1104 D
FLAG -2960 -1264 A_IN
FLAG -2960 -1184 _B_IN
FLAG -2960 -1104 B_IN
FLAG -4880 -1264 _O1
FLAG -5680 -1120 I1
FLAG -3456 800 0
FLAG -2816 -336 O1
FLAG -3584 -80 IN
FLAG -1872 -336 O2
FLAG -16 -336 O4
FLAG -944 -336 O3
FLAG -3488 2544 0
FLAG -2848 1408 S1
FLAG -3616 1664 IN
FLAG -1888 1840 S2
FLAG -48 1408 S4
FLAG -976 1408 S3
FLAG -2672 1664 IN
FLAG 2992 -336 O
FLAG -4752 -2368 _C_IN
FLAG 1008 -352 _B_IN
FLAG 5968 -352 B_IN
FLAG 1008 -528 C_IN
FLAG 3856 800 0
FLAG -4096 -544 VCC
FLAG 1056 -704 VCC
FLAG 5936 -528 C_IN
FLAG 4800 -336 _O
FLAG -5184 -1968 0
FLAG 1520 -528 _OO
FLAG 1200 208 VCC
SYMBOL voltage -5936 -2208 R0
SYMATTR InstName VCC
SYMATTR Value {VCC}
SYMBOL npn -5200 -1168 R0
SYMATTR InstName Q9
SYMATTR Value 2N3904
SYMBOL res -5360 -1536 R0
SYMATTR InstName R168
SYMATTR Value 810
SYMBOL res -5152 -1632 R0
SYMATTR InstName R169
SYMATTR Value 1k
SYMBOL res -5152 -736 R0
SYMATTR InstName R171
SYMATTR Value 15
SYMBOL res -5568 -1104 R270
SYMATTR InstName R174
SYMATTR Value 22
SYMBOL voltage -5504 -2192 R0
SYMATTR Value2 AC {VH}
SYMATTR InstName V_BIT5
SYMATTR Value PULSE(0 {VH-VL} 0 {rise} {rise} {1/freq/2-rise} {1/freq} {256*reps})
SYMBOL Digital\\dflop -5232 -2304 R0
SYMATTR SpiceLine Vhigh={VH-VL}
SYMATTR InstName A11
SYMBOL Digital\\dflop -4832 -2304 R0
SYMATTR SpiceLine Vhigh={VH-VL}
SYMATTR InstName A13
SYMBOL Digital\\dflop -4032 -2304 R0
SYMATTR SpiceLine Vhigh={VH-VL}
SYMATTR InstName A15
SYMBOL Digital\\dflop -3632 -2304 R0
SYMATTR SpiceLine Vhigh={VH-VL}
SYMATTR InstName A16
SYMBOL Digital\\dflop -4432 -2304 R0
SYMATTR SpiceLine Vhigh={VH-VL}
SYMATTR InstName A14
SYMBOL res -3648 -2544 R90
SYMATTR InstName R107
SYMATTR Value 1m
SYMBOL res -4080 -2512 R90
SYMATTR InstName R109
SYMATTR Value 1m
SYMBOL res -2880 -1088 R270
SYMATTR InstName R11
SYMATTR Value 1m
SYMBOL res -2880 -1168 R270
SYMATTR InstName R12
SYMATTR Value 1m
SYMBOL res -2880 -1248 R270
SYMATTR InstName R26
SYMATTR Value 1m
SYMBOL npn -5200 -1424 R0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL res -5360 -1040 R0
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL diode -5120 -336 R180
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL voltage -5008 -304 R180
SYMATTR InstName VCC_NEG
SYMATTR Value 12
SYMBOL res -5008 -528 R90
SYMATTR InstName R3
SYMATTR Value 180
SYMBOL voltage -4464 -960 R0
SYMATTR InstName VCC_12
SYMATTR Value 30
SYMBOL voltage -5616 -592 R0
SYMATTR InstName V_IN
SYMATTR Value PULSE(0 3 0 1n 1n 24n 50n 1000)
SYMBOL voltage -6000 -928 R0
SYMATTR InstName VCC_1
SYMATTR Value 12
SYMBOL res -5760 -608 R0
SYMATTR InstName R2
SYMATTR Value 75
SYMBOL res -4944 -1280 R90
SYMATTR InstName R4
SYMATTR Value 220
SYMBOL res -4896 -992 R180
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL npn -2960 -128 R0
SYMATTR InstName Q2
SYMATTR Value 2N3904
SYMBOL res -2912 304 R0
SYMATTR InstName R8
SYMATTR Value 1m
SYMBOL res -3488 -64 R270
SYMATTR InstName R9
SYMATTR Value 200
SYMBOL res -3888 -560 R90
SYMATTR InstName R24
SYMATTR Value 1m
SYMBOL voltage -3632 256 R0
SYMATTR InstName V_IN1
SYMATTR Value PULSE({VL} {VH} 0 1n 1n 24n 50n 1000)
SYMBOL schottky -3184 -176 R270
SYMATTR InstName D2
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -3312 -320 R0
SYMATTR InstName R13
SYMATTR Value 1k
SYMBOL res -2912 -496 R0
SYMATTR InstName R21
SYMATTR Value 500
SYMBOL res -3360 112 R0
SYMATTR InstName R7
SYMATTR Value 20
SYMBOL diode -3360 416 R0
SYMATTR InstName D7
SYMATTR Value 1N914
SYMBOL npn -2032 -128 R0
SYMATTR InstName Q3
SYMATTR Value 2N3904
SYMBOL res -1984 304 R0
SYMATTR InstName R6
SYMATTR Value 1m
SYMBOL res -2560 -64 R270
SYMATTR InstName R10
SYMATTR Value 200
SYMBOL schottky -2256 -176 R270
SYMATTR InstName D3
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -2384 -320 R0
SYMATTR InstName R14
SYMATTR Value 1k
SYMBOL res -1984 -496 R0
SYMATTR InstName R15
SYMATTR Value 500
SYMBOL res -2432 112 R0
SYMATTR InstName R16
SYMATTR Value 20
SYMBOL diode -2432 416 R0
SYMATTR InstName D4
SYMATTR Value 1N914
SYMBOL npn -1088 -128 R0
SYMATTR InstName Q4
SYMATTR Value 2N3904
SYMBOL res -1040 304 R0
SYMATTR InstName R17
SYMATTR Value 1m
SYMBOL res -1616 -64 R270
SYMATTR InstName R18
SYMATTR Value 200
SYMBOL schottky -1312 -176 R270
SYMATTR InstName D5
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -1440 -320 R0
SYMATTR InstName R19
SYMATTR Value 1k
SYMBOL res -1040 -496 R0
SYMATTR InstName R20
SYMATTR Value 500
SYMBOL res -1488 112 R0
SYMATTR InstName R22
SYMATTR Value 20
SYMBOL diode -1488 416 R0
SYMATTR InstName D6
SYMATTR Value 1N914
SYMBOL npn -160 -128 R0
SYMATTR InstName Q5
SYMATTR Value 2N3904
SYMBOL res -112 304 R0
SYMATTR InstName R23
SYMATTR Value 1m
SYMBOL res -688 -64 R270
SYMATTR InstName R25
SYMATTR Value 200
SYMBOL schottky -384 -176 R270
SYMATTR InstName D8
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -512 -320 R0
SYMATTR InstName R27
SYMATTR Value 1k
SYMBOL res -112 -496 R0
SYMATTR InstName R28
SYMATTR Value 500
SYMBOL res -560 112 R0
SYMATTR InstName R29
SYMATTR Value 20
SYMBOL diode -560 416 R0
SYMATTR InstName D9
SYMATTR Value 1N914
SYMBOL npn -2992 1616 R0
SYMATTR InstName Q6
SYMATTR Value 2N3904
SYMBOL res -2944 2048 R0
SYMATTR InstName R30
SYMATTR Value 1m
SYMBOL res -3520 1680 R270
SYMATTR InstName R31
SYMATTR Value 100
SYMBOL voltage -4176 1824 R0
SYMATTR InstName VCC_3
SYMATTR Value 3
SYMBOL res -3920 1184 R90
SYMATTR InstName R32
SYMATTR Value 1m
SYMBOL schottky -3216 1568 R270
SYMATTR InstName D10
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -3344 1424 R0
SYMATTR InstName R33
SYMATTR Value 1k
SYMBOL res -2944 1248 R0
SYMATTR InstName R34
SYMATTR Value 500
SYMBOL res -3392 1856 R0
SYMATTR InstName R35
SYMATTR Value 20
SYMBOL diode -3392 2160 R0
SYMATTR InstName D11
SYMATTR Value 1N914
SYMBOL res -2016 1248 R0
SYMATTR InstName R36
SYMATTR Value 1m
SYMBOL res -2592 1680 R270
SYMATTR InstName R37
SYMATTR Value 100
SYMBOL schottky -2112 1792 R90
SYMATTR InstName D12
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -2384 1744 R0
SYMATTR InstName R38
SYMATTR Value 1k
SYMBOL res -2016 2048 R0
SYMATTR InstName R39
SYMATTR Value 500
SYMBOL res -2464 1456 R0
SYMATTR InstName R40
SYMATTR Value 20
SYMBOL diode -2432 1344 R180
SYMATTR InstName D13
SYMATTR Value 1N914
SYMBOL npn -1120 1616 R0
SYMATTR InstName Q8
SYMATTR Value 2N3904
SYMBOL res -1072 2048 R0
SYMATTR InstName R41
SYMATTR Value 1m
SYMBOL res -1648 1680 R270
SYMATTR InstName R42
SYMATTR Value 100
SYMBOL schottky -1344 1568 R270
SYMATTR InstName D14
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -1472 1424 R0
SYMATTR InstName R43
SYMATTR Value 1k
SYMBOL res -1072 1248 R0
SYMATTR InstName R44
SYMATTR Value 500
SYMBOL res -1520 1856 R0
SYMATTR InstName R45
SYMATTR Value 20
SYMBOL diode -1520 2160 R0
SYMATTR InstName D15
SYMATTR Value 1N914
SYMBOL npn -192 1616 R0
SYMATTR InstName Q10
SYMATTR Value 2N3904
SYMBOL res -144 2048 R0
SYMATTR InstName R46
SYMATTR Value 1m
SYMBOL res -720 1680 R270
SYMATTR InstName R47
SYMATTR Value 100
SYMBOL schottky -416 1568 R270
SYMATTR InstName D16
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -544 1424 R0
SYMATTR InstName R48
SYMATTR Value 1k
SYMBOL res -144 1248 R0
SYMATTR InstName R49
SYMATTR Value 500
SYMBOL res -592 1856 R0
SYMATTR InstName R50
SYMATTR Value 20
SYMBOL diode -592 2160 R0
SYMATTR InstName D17
SYMATTR Value 1N914
SYMBOL pnp -2064 1712 M180
SYMATTR InstName Q7
SYMATTR Value 2N3906
SYMBOL npn 4656 -128 R0
SYMATTR InstName Q11
SYMATTR Value 2N3904
SYMBOL res 4704 304 R0
SYMATTR InstName R51
SYMATTR Value 1m
SYMBOL res 4128 -64 R270
SYMATTR InstName R52
SYMATTR Value 100
SYMBOL schottky 4432 -176 R270
SYMATTR InstName D18
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 4304 -320 R0
SYMATTR InstName R53
SYMATTR Value 1k
SYMBOL res 4704 -656 R0
SYMATTR InstName R54
SYMATTR Value 500
SYMBOL res 4256 112 R0
SYMATTR InstName R55
SYMATTR Value 20
SYMBOL diode 4256 416 R0
SYMATTR InstName D19
SYMATTR Value 1N914
SYMBOL npn 3136 -128 M0
SYMATTR InstName Q12
SYMATTR Value 2N3904
SYMBOL res 3088 304 M0
SYMATTR InstName R56
SYMATTR Value 1m
SYMBOL res 3664 -64 M270
SYMATTR InstName R57
SYMATTR Value 100
SYMBOL schottky 3360 -176 M270
SYMATTR InstName D20
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 3488 -320 M0
SYMATTR InstName R58
SYMATTR Value 1k
SYMBOL res 3088 -656 M0
SYMATTR InstName R59
SYMATTR Value 500
SYMBOL res 3536 112 M0
SYMATTR InstName R60
SYMATTR Value 20
SYMBOL diode 3536 416 M0
SYMATTR InstName D21
SYMATTR Value 1N914
SYMBOL pnp 1360 -304 M180
SYMATTR InstName Q13
SYMATTR Value 2N3906
SYMBOL pnp 5568 -304 R180
SYMATTR InstName Q14
SYMATTR Value 2N3906
SYMBOL res 1200 -336 M270
SYMATTR InstName R61
SYMATTR Value 100
SYMBOL res 1200 -512 M270
SYMATTR InstName R62
SYMATTR Value 100
SYMBOL res 5872 -336 M270
SYMATTR InstName R64
SYMATTR Value 100
SYMBOL npn 1216 -576 R0
SYMATTR InstName Q17
SYMATTR Value 2N3904
SYMBOL res 5744 -512 R270
SYMATTR InstName R63
SYMATTR Value 100
SYMBOL npn 5728 -576 M0
SYMATTR InstName Q15
SYMATTR Value 2N3904
SYMBOL npn 1696 -384 M0
SYMATTR InstName Q16
SYMATTR Value 2N3904
SYMBOL res 1648 -656 M0
SYMATTR InstName R65
SYMATTR Value 2k
SYMBOL npn 5280 -384 R0
SYMATTR InstName Q18
SYMATTR Value 2N3904
SYMBOL res 5328 -656 R0
SYMATTR InstName R66
SYMATTR Value 1k
SYMBOL res 1952 -320 M270
SYMATTR InstName R67
SYMATTR Value 2k
SYMBOL res 5008 -320 M270
SYMATTR InstName R68
SYMATTR Value 1k
SYMBOL res 5136 -64 M0
SYMATTR InstName R70
SYMATTR Value 1k
SYMBOL schottky 1760 -416 M270
SYMATTR InstName D22
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 1200 -688 M270
SYMATTR InstName R71
SYMATTR Value 1m
SYMBOL voltage -5184 -2064 R0
SYMATTR InstName VCC1
SYMATTR Value {VL}
SYMBOL res 1776 -64 M0
SYMATTR InstName R72
SYMATTR Value 2k
SYMBOL npn 1184 384 M0
SYMATTR InstName Q19
SYMATTR Value 2N3904
SYMBOL res 1104 224 R0
SYMATTR InstName R69
SYMATTR Value 10k
SYMBOL npn 2912 -384 M0
SYMATTR InstName Q21
SYMATTR Value 2N3904
SYMBOL res 2864 -80 M0
SYMATTR InstName R73
SYMATTR Value 1k