Version 4
SHEET 1 1648 932
WIRE 352 -64 80 -64
WIRE 560 -64 352 -64
WIRE 80 -32 80 -64
WIRE 352 -32 352 -64
WIRE 560 -32 560 -64
WIRE 352 80 352 48
WIRE -16 112 -32 112
WIRE 80 112 80 48
WIRE 80 112 -16 112
WIRE 288 112 80 112
WIRE 560 112 560 48
WIRE 560 112 432 112
WIRE 672 112 560 112
WIRE 688 112 672 112
WIRE 80 144 80 112
WIRE 560 176 560 112
WIRE 176 224 128 224
WIRE 432 224 432 112
WIRE 432 224 176 224
WIRE 288 256 288 112
WIRE 448 256 288 256
WIRE 512 256 448 256
WIRE 176 288 176 224
WIRE 448 288 448 256
WIRE 0 368 -64 368
WIRE 128 368 0 368
WIRE 656 368 496 368
WIRE 688 368 656 368
WIRE -64 416 -64 368
WIRE 688 416 688 368
WIRE 80 464 80 240
WIRE 176 464 176 384
WIRE 176 464 80 464
WIRE 352 464 176 464
WIRE 448 464 448 384
WIRE 448 464 352 464
WIRE 560 464 560 272
WIRE 560 464 448 464
WIRE 352 512 352 464
WIRE -64 528 -64 496
WIRE 688 528 688 496
FLAG 352 -64 VCC
FLAG 352 512 0
FLAG -16 112 Q1
FLAG 0 368 RST
FLAG 656 368 SET
FLAG 672 112 Q2
FLAG -64 528 0
FLAG 688 528 0
FLAG 352 80 0
SYMBOL nmos 128 288 R0
WINDOW 3 62 79 Left 2
SYMATTR Value Si9420DY
SYMATTR InstName M3
SYMBOL res 64 -48 R0
SYMATTR InstName R1
SYMATTR Value 1K
SYMBOL res 544 -48 R0
SYMATTR InstName R2
SYMATTR Value 1K
SYMBOL voltage -64 400 R0
WINDOW 3 -7 168 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(0 5 1ms .1u .1u 1u 10m)
SYMATTR InstName V1
SYMBOL voltage 688 400 R0
WINDOW 3 -232 175 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(0 5 4ms .1u .1u 1u 10m)
SYMATTR InstName V2
SYMBOL voltage 352 -48 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL nmos 496 288 M0
WINDOW 3 55 81 Left 2
SYMATTR Value Si9420DY
SYMATTR InstName M4
SYMBOL nmos 128 144 M0
WINDOW 3 62 79 Left 2
SYMATTR Value Si9420DY
SYMATTR InstName M1
SYMBOL nmos 512 176 R0
WINDOW 3 62 79 Left 2
SYMATTR Value Si9420DY
SYMATTR InstName M2
TEXT -80 616 Left 2 !.tran 25ms startup 
TEXT -80 648 Left 2 !.options plotwinsize=0