Version 4
SHEET 1 13828 1048
WIRE -464 -624 -496 -624
WIRE 848 -624 816 -624
WIRE -496 -592 -496 -624
WIRE 848 -592 848 -624
WIRE -320 -432 -352 -432
WIRE 464 -432 320 -432
WIRE 544 -432 464 -432
WIRE 624 -432 544 -432
WIRE 704 -432 624 -432
WIRE 224 -416 192 -416
WIRE 256 -416 224 -416
WIRE -320 -400 -320 -432
WIRE 352 -400 320 -400
WIRE 464 -400 464 -432
WIRE 416 -384 384 -384
WIRE 544 -384 544 -432
WIRE 624 -384 624 -432
WIRE 384 -336 384 -384
WIRE 192 -320 192 -416
WIRE 256 -320 192 -320
WIRE -320 -304 -320 -336
WIRE -240 -304 -320 -304
WIRE -112 -304 -240 -304
WIRE -16 -304 -48 -304
WIRE 48 -304 -16 -304
WIRE 384 -304 384 -336
WIRE 384 -304 320 -304
WIRE -320 -288 -320 -304
WIRE -320 -288 -368 -288
WIRE 144 -288 112 -288
WIRE 256 -288 144 -288
WIRE 416 -288 416 -336
WIRE 432 -288 416 -288
WIRE 464 -288 464 -320
WIRE 544 -288 544 -320
WIRE 544 -288 464 -288
WIRE 624 -288 624 -320
WIRE 624 -288 544 -288
WIRE 720 -288 624 -288
WIRE -112 -272 -160 -272
WIRE -16 -272 -48 -272
WIRE 0 -272 -16 -272
WIRE 48 -272 16 -272
WIRE 256 -272 176 -272
WIRE 384 -272 320 -272
WIRE -320 -256 -320 -288
WIRE -240 -256 -240 -304
WIRE 0 -256 16 -272
WIRE 16 -256 0 -272
WIRE 256 -256 192 -256
WIRE 464 -256 464 -288
WIRE 544 -256 544 -288
WIRE 624 -256 624 -288
WIRE 384 -240 384 -272
WIRE 416 -240 416 -288
WIRE 384 -192 384 -240
WIRE 416 -192 384 -192
WIRE -320 -144 -320 -192
WIRE -320 -144 -352 -144
WIRE -240 -144 -240 -192
WIRE -240 -144 -320 -144
WIRE -160 -144 -160 -272
WIRE -160 -144 -240 -144
WIRE 352 -144 352 -400
WIRE 464 -144 464 -176
WIRE 464 -144 352 -144
WIRE 544 -144 544 -192
WIRE 544 -144 464 -144
WIRE 624 -144 624 -192
WIRE 624 -144 544 -144
WIRE 704 -144 624 -144
WIRE 624 -80 544 -80
WIRE 704 -80 624 -80
WIRE -320 -64 -352 -64
WIRE -96 -64 -112 -64
WIRE -96 -48 -96 -64
WIRE 544 -48 544 -80
WIRE 624 -48 624 -80
WIRE -320 -32 -320 -64
WIRE 16 48 16 -256
WIRE 48 48 16 48
WIRE 624 48 624 16
WIRE 704 48 624 48
WIRE -320 64 -320 32
WIRE -240 64 -320 64
WIRE -208 64 -240 64
WIRE -112 64 -128 64
WIRE -96 64 -96 32
WIRE -96 64 -112 64
WIRE 144 64 112 64
WIRE 160 64 144 64
WIRE -320 80 -320 64
WIRE -320 80 -352 80
WIRE -16 80 -32 80
WIRE 0 80 0 -256
WIRE 0 80 -16 80
WIRE 48 80 0 80
WIRE 368 96 352 96
WIRE 464 96 448 96
WIRE 624 96 464 96
WIRE 704 96 624 96
WIRE -320 112 -320 80
WIRE -240 112 -240 64
WIRE -32 112 -32 80
WIRE -96 128 -96 64
WIRE -80 128 -96 128
WIRE 464 128 464 96
WIRE 624 128 624 96
WIRE -80 176 -96 176
WIRE -320 224 -320 176
WIRE -320 224 -352 224
WIRE -240 224 -240 176
WIRE -240 224 -320 224
WIRE -96 224 -96 176
WIRE -96 224 -240 224
WIRE -32 224 -32 192
WIRE -16 224 -32 224
WIRE 464 224 464 192
WIRE 464 224 352 224
WIRE 544 224 544 16
WIRE 624 224 624 192
WIRE 624 224 544 224
WIRE 704 224 624 224
WIRE -96 240 -96 224
WIRE -32 256 -32 224
WIRE -32 256 -48 256
WIRE -320 304 -352 304
WIRE -32 304 -48 304
WIRE 464 304 320 304
WIRE 544 304 464 304
WIRE 624 304 544 304
WIRE 704 304 624 304
WIRE 192 320 192 -256
WIRE 224 320 192 320
WIRE 256 320 224 320
WIRE -320 336 -320 304
WIRE -224 336 -240 336
WIRE -96 336 -96 320
WIRE -96 336 -112 336
WIRE -32 336 -32 304
WIRE 192 336 192 320
WIRE 192 336 -32 336
WIRE 352 336 320 336
WIRE 464 336 464 304
WIRE -240 352 -240 336
WIRE 416 352 384 352
WIRE 544 352 544 304
WIRE 624 352 624 304
WIRE 384 400 384 352
WIRE 192 416 192 336
WIRE 256 416 192 416
WIRE -320 432 -320 400
WIRE -240 432 -240 416
WIRE -240 432 -320 432
WIRE -112 432 -240 432
WIRE -16 432 -48 432
WIRE 176 432 176 -272
WIRE 176 432 -16 432
WIRE 256 432 176 432
WIRE 384 432 384 400
WIRE 384 432 320 432
WIRE -320 448 -320 432
WIRE -320 448 -352 448
WIRE 160 448 160 64
WIRE 256 448 160 448
WIRE 416 448 416 400
WIRE 432 448 416 448
WIRE 464 448 464 416
WIRE 544 448 544 416
WIRE 544 448 464 448
WIRE 624 448 624 416
WIRE 624 448 544 448
WIRE 720 448 624 448
WIRE -112 464 -160 464
WIRE 384 464 320 464
WIRE -320 480 -320 448
WIRE 464 480 464 448
WIRE 544 480 544 448
WIRE 624 480 624 448
WIRE 384 496 384 464
WIRE 416 496 416 448
WIRE 384 544 384 496
WIRE 416 544 384 544
WIRE -320 592 -320 544
WIRE -320 592 -352 592
WIRE -160 592 -160 464
WIRE -160 592 -320 592
WIRE 352 592 352 336
WIRE 464 592 464 560
WIRE 464 592 352 592
WIRE 544 592 544 544
WIRE 544 592 464 592
WIRE 624 592 624 544
WIRE 624 592 544 592
WIRE 704 592 624 592
WIRE -496 672 -496 640
WIRE -464 672 -496 672
WIRE 848 672 848 640
WIRE 848 672 816 672
FLAG 720 -288 Ho
IOPIN 720 -288 Out
FLAG -368 -288 In
IOPIN -368 -288 In
FLAG 704 -432 Vb
IOPIN 704 -432 In
FLAG 704 -144 Vs
IOPIN 704 -144 In
FLAG -352 -144 Vss
IOPIN -352 -144 In
FLAG 704 224 Com
IOPIN 704 224 In
FLAG -352 80 DT
IOPIN -352 80 In
FLAG -352 224 Vss
IOPIN -352 224 In
FLAG 704 304 Vcc
IOPIN 704 304 In
FLAG 704 592 Com
IOPIN 704 592 In
FLAG 720 448 Lo
IOPIN 720 448 Out
FLAG 432 -288 0
FLAG 224 -416 7
FLAG 144 -288 6
FLAG -16 432 5
FLAG 384 -240 9
FLAG 384 400 12
FLAG -352 448 SD\
IOPIN -352 448 In
FLAG -352 592 Vss
IOPIN -352 592 In
FLAG 704 96 Vcc
IOPIN 704 96 In
FLAG 352 224 Vss
IOPIN 352 224 In
FLAG 704 -80 Vb
IOPIN 704 -80 In
FLAG 704 48 Vs
IOPIN 704 48 In
FLAG -16 80 4
FLAG 224 320 11
FLAG 384 -336 8
FLAG -16 224 0
FLAG -112 336 5V
FLAG -112 -64 5V
FLAG -224 336 5V
FLAG -352 -432 Vcc
IOPIN -352 -432 In
FLAG -352 -64 Vcc
IOPIN -352 -64 In
FLAG -352 304 Vcc
IOPIN -352 304 In
FLAG -112 64 3
FLAG -16 -304 1
FLAG -16 -272 2
FLAG 144 64 10
FLAG 352 96 Com
IOPIN 352 96 In
FLAG 384 496 13
FLAG 432 448 0
SYMBOL diode -336 -336 M180
WINDOW 0 31 64 Left 2
WINDOW 3 32 0 Left 2
SYMATTR InstName D1
SYMATTR Value Dd
SYMBOL zener -336 -192 M180
WINDOW 0 32 64 Left 2
WINDOW 3 32 0 Left 2
SYMATTR InstName D2
SYMATTR Value 10V
SYMBOL cap -256 -256 R0
WINDOW 0 32 0 Left 2
WINDOW 3 32 64 Left 2
WINDOW 39 32 131 Center 2
SYMATTR InstName C1
SYMATTR Value 10p
SYMATTR SpiceLine Rpar=1e6
SYMBOL Digital\\diffschmitt -112 -352 R0
WINDOW 0 32 24 Center 2
WINDOW 3 -32 0 Left 2
WINDOW 123 -32 120 Left 2
WINDOW 39 -32 144 Left 2
WINDOW 40 -32 168 Left 2
SYMATTR InstName A1
SYMATTR Value Vt=1.75 Vh=0.95
SYMATTR Value2 Trise=5u7
SYMATTR SpiceLine Tfall=5n
SYMATTR SpiceLine2 Tripdt=100n
SYMBOL diode -336 32 M180
WINDOW 0 31 64 Left 2
WINDOW 3 32 0 Left 2
SYMATTR InstName D3
SYMATTR Value Dd
SYMBOL zener -336 176 M180
WINDOW 0 32 64 Left 2
WINDOW 3 32 0 Left 2
SYMATTR InstName D4
SYMATTR Value 10V
SYMBOL cap -256 112 R0
WINDOW 0 32 0 Left 2
WINDOW 3 32 64 Left 2
WINDOW 39 32 131 Center 2
SYMATTR InstName C2
SYMATTR Value 10p
SYMATTR SpiceLine Rpar=1e6
SYMBOL res -112 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1k6
SYMBOL res -112 -64 R0
SYMATTR InstName R2
SYMATTR Value 28k4
SYMBOL e -32 96 R0
WINDOW 0 -9 8 Right 2
WINDOW 3 -8 104 Right 2
SYMATTR InstName E1
SYMATTR Value .2
SYMBOL e -96 336 R180
WINDOW 0 -16 8 Right 2
WINDOW 3 -16 104 Right 2
SYMATTR InstName E2
SYMATTR Value 5
SYMBOL diode -336 400 M180
WINDOW 0 31 64 Left 2
WINDOW 3 32 0 Left 2
SYMATTR InstName D5
SYMATTR Value Dd
SYMBOL zener -336 544 M180
WINDOW 0 32 64 Left 2
WINDOW 3 32 0 Left 2
SYMATTR InstName D6
SYMATTR Value 10V
SYMBOL cap -256 352 R0
WINDOW 0 32 13 Left 2
WINDOW 3 32 51 Left 2
WINDOW 39 32 -45 Center 2
SYMATTR InstName C3
SYMATTR Value 10p
SYMATTR SpiceLine Rpar=1e6
SYMBOL Digital\\diffschmitt -112 384 R0
WINDOW 0 32 24 Center 2
WINDOW 3 -32 0 Left 2
WINDOW 123 -32 120 Left 2
SYMATTR InstName A2
SYMATTR Value Vt=1.75 Vh=0.95
SYMATTR Value2 Td=130n Tripdt=30n
SYMBOL Digital\\diffschmtbuf 48 -352 R0
WINDOW 0 32 24 Center 2
WINDOW 3 -16 120 Left 2
WINDOW 123 -16 144 Left 2
WINDOW 39 -16 168 Left 2
SYMATTR InstName A3
SYMATTR Value Vt=0 Vh=0
SYMATTR Value2 Td=215n
SYMATTR SpiceLine Tripdt=70n
SYMBOL Digital\\diffschmtbuf 48 0 R0
WINDOW 0 32 24 Center 2
WINDOW 3 -16 120 Left 2
WINDOW 123 -16 144 Left 2
WINDOW 39 -16 168 Left 2
SYMATTR InstName A4
SYMATTR Value Vt=0 Vh=0
SYMATTR Value2 Td=215n
SYMATTR SpiceLine Tripdt=70n
SYMBOL Digital\\diffschmtbuf 320 -480 M0
WINDOW 0 40 25 Center 2
WINDOW 3 -16 25 Right 2
WINDOW 123 -16 0 Right 2
SYMATTR InstName A5
SYMATTR Value Vt=8.55 Vh=.35
SYMATTR Value2 Td=50n Tripdt=10n
SYMBOL Digital\\and 288 -352 R0
WINDOW 0 -8 16 Center 2
WINDOW 3 -64 120 Left 2
WINDOW 123 -64 144 Left 2
SYMATTR InstName A6
SYMATTR Value Tau=30n
SYMATTR Value2 Tripdt=10n
SYMBOL sw 464 -304 M180
WINDOW 0 32 80 Left 2
WINDOW 3 32 16 Left 2
SYMATTR InstName S1
SYMATTR Value SH
SYMBOL sw 464 -272 R0
WINDOW 0 32 16 Left 2
WINDOW 3 32 80 Left 2
SYMATTR InstName S2
SYMATTR Value SL
SYMBOL cap 528 -384 R0
WINDOW 0 32 0 Left 2
WINDOW 3 32 64 Left 2
SYMATTR InstName C4
SYMATTR Value 42p
SYMBOL cap 528 -256 R0
WINDOW 0 32 0 Left 2
WINDOW 3 32 64 Left 2
WINDOW 39 32 131 Center 2
SYMATTR InstName C5
SYMATTR Value 50p
SYMATTR SpiceLine Rpar=100k
SYMBOL diode 608 -320 M180
WINDOW 0 32 64 Left 2
WINDOW 3 32 0 Left 2
SYMATTR InstName D7
SYMATTR Value Dd
SYMBOL diode 608 -192 M180
WINDOW 0 32 64 Left 2
WINDOW 3 32 0 Left 2
SYMATTR InstName D8
SYMATTR Value Dd
SYMBOL zener 528 16 M180
WINDOW 0 0 64 Right 2
WINDOW 3 0 0 Right 2
SYMATTR InstName D9
SYMATTR Value 625V
SYMBOL zener 608 16 M180
WINDOW 0 0 64 Right 2
WINDOW 3 0 0 Right 2
SYMATTR InstName D10
SYMATTR Value 25V
SYMBOL zener 448 192 M180
WINDOW 0 32 64 Left 2
WINDOW 3 32 0 Left 2
SYMATTR InstName D11
SYMATTR Value 25V
SYMBOL zener 608 192 M180
WINDOW 0 0 64 Right 2
WINDOW 3 0 0 Right 2
SYMATTR InstName D12
SYMATTR Value 25V
SYMBOL res 464 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 17k
SYMBOL Digital\\diffschmtbuf 320 256 M0
WINDOW 0 40 25 Center 2
WINDOW 3 -16 25 Right 2
WINDOW 123 -16 0 Right 2
SYMATTR InstName A7
SYMATTR Value Vt=8.55 Vh=.35
SYMATTR Value2 Td=50n Tripdt=10n
SYMBOL Digital\\and 288 384 R0
WINDOW 0 -8 16 Center 2
WINDOW 3 -64 120 Left 2
WINDOW 123 -64 144 Left 2
SYMATTR InstName A8
SYMATTR Value Tau=30n
SYMATTR Value2 Tripdt=10n
SYMBOL sw 464 432 M180
WINDOW 0 32 80 Left 2
WINDOW 3 32 16 Left 2
SYMATTR InstName S3
SYMATTR Value SH
SYMBOL sw 464 464 R0
WINDOW 0 32 16 Left 2
WINDOW 3 32 80 Left 2
SYMATTR InstName S4
SYMATTR Value SL
SYMBOL cap 528 352 R0
WINDOW 0 32 0 Left 2
WINDOW 3 32 64 Left 2
SYMATTR InstName C6
SYMATTR Value 42p
SYMBOL cap 528 480 R0
WINDOW 0 32 0 Left 2
WINDOW 3 32 64 Left 2
WINDOW 39 32 131 Center 2
SYMATTR InstName C7
SYMATTR Value 50p
SYMATTR SpiceLine Rpar=100k
SYMBOL diode 608 416 M180
WINDOW 0 32 64 Left 2
WINDOW 3 32 0 Left 2
SYMATTR InstName D13
SYMATTR Value Dd
SYMBOL diode 608 544 M180
WINDOW 0 32 64 Left 2
WINDOW 3 32 0 Left 2
SYMATTR InstName D14
SYMATTR Value Dd
TEXT 176 -624 Center 2 ;>> IR21844 Behavioral Model by analog@ieee.org 12/2005 Rev - <<
TEXT -432 -576 Left 2 !.model Dd D(Ron=.5 Vfwd=.5)\n.model 10V D(Ron=.5 Vfwd=.5 Vrev=10)\n.model 25V D(Ron=.5 Vfwd=.5 Vrev=25.2 Roff=250k)\n.model 625V D(Ron=.5 Vfwd=.5 Vrev=625 Roff=12e6)
TEXT 192 -576 Left 2 !.model SH SW(Vt=.5 Vh=-.5 Ron=8 Ilimit=1.9 Vser=1.2)\n.model SL SW(Vt=.5 Vh=-.5 Ron=3 Ilimit=2.3)
TEXT 280 -24 Center 2 ;Td=50ns\n(outputs)
RECTANGLE Normal 832 656 -480 -608