* SPICE netlist
C1 In COM 10p Rpar=1Meg
D1 In Vcc Dd
D2 COM In Dd
A3 3 1 0 6 7 5 4 0 AND Trise=100n Tripdt=20n
A1 In COM 0 0 0 2 1 0 SCHMITT Vt=1.9 Vh=1 Trise=1110n Tfall=100n Tripdt=50n
A2 VB VS 0 0 0 0 3 0 SCHMITT Vt=8.9 Vh=.35
S1 HO VB 4 0 SH
C2 HO VB 22p
D3 HO VB Dd
S2 HO VS 5 0 SL
C3 HO VS 22p Rpar=100k
D4 VS HO Dd
D5 VS VB 25V
D6 COM VB 625V
C4 _SD COM 10p Rpar=1Meg
D8 COM _SD Dd
D7 _SD Vcc Dd
A4 _SD COM 0 0 0 0 6 0 SCHMITT Vt=1.9 Vh=1 Trise=120nd Tripdt=25n
A5 Vcc com 0 0 0 0 7 0 SCHMITT Vt=8.9 Vh=.35
A6 7 6 0 2 0 9 8 0 AND Trise=100n Tripdt=20n
S3 LO Vcc 8 0 SH
C5 LO Vcc 22p
D9 LO Vcc Dd
S4 LO com 9 0 SL
C6 LO com 22p Rpar=100k
D10 com LO Dd
D11 com Vcc 25V

* LTspice schematic (.asc)
Version 4
SHEET 1 1104 1008
WIRE -296 -472 -296 -504
WIRE -296 -472 -376 -472
WIRE -376 -456 -376 -472
WIRE -296 -440 -296 -472
WIRE -376 -360 -376 -392
WIRE -296 -360 -296 -376
WIRE -296 -360 -376 -360
WIRE -376 -344 -376 -360
WIRE -376 -264 -376 -280
WIRE -376 -264 -536 -264
WIRE -296 -216 -296 -360
WIRE -296 -216 -552 -216
WIRE -264 -216 -296 -216
WIRE -168 -216 -200 -216
WIRE -152 -216 -168 -216
WIRE -264 -184 -296 -184
WIRE -120 -184 -200 -184
WIRE -104 -184 -120 -184
WIRE 296 -136 216 -136
WIRE 376 -136 296 -136
WIRE 472 -136 376 -136
WIRE 552 -136 472 -136
WIRE 216 -120 216 -136
WIRE 168 -104 24 -104
WIRE 296 -104 296 -136
WIRE 376 -104 376 -136
WIRE 472 -104 472 -136
WIRE -72 -56 -104 -56
WIRE -72 -40 -88 -40
WIRE 24 -40 24 -104
WIRE 24 -40 -8 -40
WIRE 40 -40 24 -40
WIRE -472 -24 -472 -56
WIRE 168 -24 168 -56
WIRE 168 -24 152 -24
WIRE 216 -24 216 -40
WIRE 296 -24 296 -40
WIRE 296 -24 216 -24
WIRE 376 -24 376 -40
WIRE 376 -24 296 -24
WIRE 552 -24 376 -24
WIRE -168 -8 -168 -216
WIRE -72 -8 -168 -8
WIRE 24 -8 -8 -8
WIRE 40 -8 24 -8
WIRE 216 -8 216 -24
WIRE 296 -8 296 -24
WIRE 376 -8 376 -24
WIRE -264 8 -296 8
WIRE -152 8 -200 8
WIRE -72 8 -152 8
WIRE 168 8 168 -24
WIRE -152 24 -152 8
WIRE -264 40 -296 40
WIRE -472 56 -472 40
WIRE -456 56 -472 56
WIRE 24 56 24 -8
WIRE 168 56 24 56
WIRE 216 88 216 72
WIRE 296 88 296 56
WIRE 296 88 216 88
WIRE 376 88 376 56
WIRE 376 88 296 88
WIRE 472 88 472 -40
WIRE 472 88 376 88
WIRE 552 88 472 88
WIRE -472 104 -472 56
WIRE -472 104 -536 104
WIRE -456 104 -472 104
WIRE -392 104 -392 56
WIRE -376 104 -392 104
WIRE 472 120 472 88
WIRE -472 168 -472 104
WIRE -248 168 -472 168
WIRE -152 168 -184 168
WIRE -88 168 -88 -40
WIRE -88 168 -152 168
WIRE -72 168 -88 168
WIRE -248 200 -280 200
WIRE 472 216 472 184
WIRE 216 264 216 248
WIRE 296 264 216 264
WIRE 376 264 296 264
WIRE 472 264 376 264
WIRE 216 280 216 264
WIRE 168 296 24 296
WIRE 296 296 296 264
WIRE 376 296 376 264
WIRE 472 296 472 264
WIRE -120 360 -120 -184
WIRE -72 360 -120 360
WIRE 24 360 24 296
WIRE 24 360 -8 360
WIRE 40 360 24 360
WIRE 168 376 168 344
WIRE 168 376 152 376
WIRE 216 376 216 360
WIRE 296 376 296 360
WIRE 296 376 216 376
WIRE 376 376 376 360
WIRE 376 376 296 376
WIRE 552 376 376 376
WIRE -152 392 -152 168
WIRE -72 392 -152 392
WIRE 24 392 -8 392
WIRE 40 392 24 392
WIRE 216 392 216 376
WIRE 296 392 296 376
WIRE 376 392 376 376
WIRE -264 408 -296 408
WIRE -168 408 -200 408
WIRE -104 408 -104 -56
WIRE -104 408 -168 408
WIRE -72 408 -104 408
WIRE 168 408 168 376
WIRE -264 440 -296 440
WIRE -168 440 -168 408
WIRE 24 456 24 392
WIRE 168 456 24 456
WIRE 216 488 216 472
WIRE 296 488 296 456
WIRE 296 488 216 488
WIRE 376 488 376 456
WIRE 376 488 296 488
WIRE 472 488 472 360
WIRE 472 488 376 488
WIRE 216 504 216 488
FLAG -296 -504 COM
IOPIN 560 -416 BiDir
FLAG -536 -264 Vcc
IOPIN 320 -176 In
FLAG -152 -216 1
FLAG -104 -184 2
FLAG -552 -216 In
IOPIN 304 -128 In
FLAG -296 -184 COM
FLAG -152 24 3
FLAG -296 8 VB
FLAG -296 40 VS
FLAG 40 -8 4
FLAG 40 -40 5
FLAG 552 -24 HO
IOPIN 1408 64 BiDir
FLAG 552 88 VB
IOPIN 1408 176 BiDir
FLAG 552 -136 VS
IOPIN 1408 -48 BiDir
FLAG 472 216 COM
FLAG -376 104 COM
FLAG -536 104 _SD
IOPIN 320 192 BiDir
FLAG -472 -56 Vcc
FLAG -72 168 6
FLAG -280 200 COM
FLAG -168 440 7
FLAG -296 408 Vcc
FLAG -296 440 com
FLAG 40 392 8
FLAG 40 360 9
FLAG 552 376 LO
IOPIN 1408 464 BiDir
FLAG 216 504 Vcc
FLAG 216 248 com
FLAG 152 -24 0
FLAG 152 376 0
SYMBOL cap -312 -376 M180
SYMATTR InstName C1
SYMATTR Value 10p
SYMATTR SpiceLine Rpar=1Meg
SYMBOL diode -360 -344 M0
SYMATTR InstName D1
SYMATTR Value Dd
SYMBOL diode -360 -456 M0
SYMATTR InstName D2
SYMATTR Value Dd
SYMBOL Digital\\and -40 40 M180
SYMATTR Value Trise=100n
SYMATTR Value2 Tripdt=20n
SYMATTR InstName A3
SYMBOL Digital\\diffschmitt -264 -264 R0
SYMATTR Value Vt=1.9 Vh=1
SYMATTR Value2 Trise=1110n Tfall=100n
SYMATTR SpiceLine Tripdt=50n
SYMATTR InstName A1
SYMBOL Digital\\diffschmitt -264 -40 R0
SYMATTR Value Vt=8.9 Vh=.35
SYMATTR InstName A2
SYMBOL sw 216 -24 R0
SYMATTR InstName S1
SYMATTR Value SH
SYMBOL cap 280 -8 R0
SYMATTR InstName C2
SYMATTR Value 22p
SYMBOL diode 360 -8 R0
SYMATTR InstName D3
SYMATTR Value Dd
SYMBOL sw 216 -24 M180
SYMATTR InstName S2
SYMATTR Value SL
SYMBOL cap 280 -40 M180
SYMATTR InstName C3
SYMATTR Value 22p
SYMATTR SpiceLine Rpar=100k
SYMBOL diode 360 -104 R0
SYMATTR InstName D4
SYMATTR Value Dd
SYMBOL diode 456 -104 R0
SYMATTR InstName D5
SYMATTR Value 25V
SYMBOL diode 488 184 R180
SYMATTR InstName D6
SYMATTR Value 625V
SYMBOL cap -456 120 R270
SYMATTR InstName C4
SYMATTR Value 10p
SYMATTR SpiceLine Rpar=1Meg
SYMBOL diode -392 40 R90
SYMATTR InstName D8
SYMATTR Value Dd
SYMBOL diode -456 40 R180
SYMATTR InstName D7
SYMATTR Value Dd
SYMBOL Digital\\diffschmitt -248 120 R0
SYMATTR Value Vt=1.9 Vh=1
SYMATTR Value2 Trise=120nd
SYMATTR SpiceLine Tripdt=25n
SYMATTR InstName A4
SYMBOL Digital\\diffschmitt -264 360 R0
SYMATTR Value Vt=8.9 Vh=.35
SYMATTR InstName A5
SYMBOL Digital\\and -40 440 M180
SYMATTR Value Trise=100n
SYMATTR Value2 Tripdt=20n
SYMATTR InstName A6
SYMBOL sw 216 376 R0
SYMATTR InstName S3
SYMATTR Value SH
SYMBOL cap 280 392 R0
SYMATTR InstName C5
SYMATTR Value 22p
SYMBOL diode 360 392 R0
SYMATTR InstName D9
SYMATTR Value Dd
SYMBOL sw 216 376 M180
SYMATTR InstName S4
SYMATTR Value SL
SYMBOL cap 280 360 M180
SYMATTR InstName C6
SYMATTR Value 22p
SYMATTR SpiceLine Rpar=100k
SYMBOL diode 360 296 R0
SYMATTR InstName D10
SYMATTR Value Dd
SYMBOL diode 456 296 R0
SYMATTR InstName D11
SYMATTR Value 25V