Version 4
SHEET 1 880 680
WIRE -224 -16 -240 -16
WIRE 208 -16 192 -16
WIRE 304 -16 288 -16
WIRE -240 0 -240 -16
WIRE 192 16 192 -16
WIRE 144 32 96 32
WIRE 288 64 288 -16
WIRE 288 64 192 64
WIRE 368 64 288 64
WIRE 192 128 192 112
WIRE 320 128 192 128
WIRE 368 128 368 64
WIRE 448 128 416 128
WIRE 192 144 192 128
WIRE 96 160 96 32
WIRE 144 160 96 160
WIRE 288 192 288 64
WIRE 288 192 192 192
WIRE 96 272 96 160
WIRE 96 272 -240 272
WIRE 192 272 192 240
WIRE 400 272 400 176
WIRE 400 272 192 272
WIRE 464 272 400 272
WIRE 192 304 192 272
WIRE 288 352 192 352
WIRE 400 368 400 272
WIRE 96 384 96 272
WIRE 144 384 96 384
WIRE 192 416 192 400
WIRE 320 416 192 416
WIRE 448 416 416 416
WIRE 192 432 192 416
WIRE -240 480 -240 272
WIRE 288 480 288 352
WIRE 288 480 192 480
WIRE 368 480 368 416
WIRE 368 480 288 480
WIRE 96 512 96 384
WIRE 144 512 96 512
WIRE 192 560 192 528
WIRE 288 560 288 480
FLAG 192 -16 VDD
FLAG 288 -16 VDD
FLAG 192 560 0
FLAG 288 560 0
FLAG 448 416 VDD
FLAG 448 128 0
FLAG 464 272 out
IOPIN 464 272 Out
FLAG -240 80 0
FLAG -240 -16 VDD
FLAG -240 560 0
FLAG -240 272 in
SYMBOL pmos4 144 112 M180
SYMATTR InstName M1
SYMBOL pmos4 144 240 M180
SYMATTR InstName M2
SYMBOL pmos4 320 176 R270
SYMATTR InstName M3
SYMBOL nmos4 144 304 R0
SYMATTR InstName M4
SYMBOL nmos4 144 432 R0
SYMATTR InstName M5
SYMBOL nmos4 320 368 M90
SYMATTR InstName M6
SYMBOL voltage -240 -16 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5V
SYMBOL voltage -240 464 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(0V 5V 0 50s 50s 0)
TEXT 392 560 Left 0 !.tran 0 100s 0s