Version 4
SHEET 1 880 680
WIRE 144 144 -80 144
WIRE 144 160 144 144
WIRE -304 192 -336 192
WIRE -192 192 -224 192
WIRE -336 224 -336 192
WIRE -192 224 -192 192
WIRE -80 224 -80 144
WIRE 144 256 144 240
WIRE 208 256 144 256
WIRE 144 272 144 256
WIRE -336 336 -336 304
WIRE -192 336 -192 304
WIRE -80 368 -80 304
WIRE 144 368 144 352
WIRE 144 368 -80 368
WIRE -80 384 -80 368
FLAG -80 384 0
FLAG 208 256 OUTPUT
IOPIN 208 256 Out
FLAG -192 336 0
FLAG -336 336 0
SYMBOL voltage -80 208 R0
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL res 128 256 R0
SYMATTR InstName R2
SYMATTR Value 1
SYMBOL csw 144 160 R0
WINDOW 3 32 64 Left 2
SYMATTR Value CSW_1
SYMATTR InstName W1
SYMATTR SpiceModel V2
SYMBOL current -336 304 R180
WINDOW 0 24 80 Left 2
WINDOW 3 -234 -68 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName I1
SYMATTR Value PULSE(0 10 0 1n 1n 1m 2m)
SYMBOL voltage -192 208 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 0
SYMBOL res -208 176 R90
WINDOW 0 6 56 VBottom 2
WINDOW 3 26 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1
TEXT -240 424 Left 2 !.Model CSW_1 CSW(Ron=1m Roff=100Meg It=5)
TEXT -240 448 Left 2 !.tran 10m