Version 4
SHEET 1 880 680
WIRE 208 128 112 128
WIRE 304 128 256 128
WIRE 320 128 304 128
WIRE 320 144 320 128
WIRE 352 144 320 144
WIRE 48 160 0 160
WIRE 112 160 112 128
WIRE 112 160 96 160
WIRE 144 160 112 160
WIRE 224 160 192 160
WIRE 240 160 224 160
WIRE 448 160 432 160
WIRE 336 176 320 176
WIRE 352 176 336 176
WIRE 240 192 208 192
WIRE 208 224 208 192
FLAG 0 160 IN
FLAG 448 160 OUT
FLAG 208 224 0
FLAG 112 160 _IN
FLAG 304 128 _IN_NTI
FLAG 224 160 _IN_PTI
FLAG 336 176 INI
SYMBOL nti 224 128 R0
WINDOW 0 -10 -32 Left 0
SYMATTR InstName Xnti
SYMBOL pti 160 160 R0
WINDOW 0 -6 25 Left 0
SYMATTR InstName Xpti
SYMBOL sti 64 160 R0
WINDOW 0 -12 -36 Left 0
SYMATTR InstName Xsti
SYMBOL tnor 384 160 R0
WINDOW 0 1 -47 Left 0
SYMATTR InstName Xtnor1
SYMBOL tnor 272 176 R0
WINDOW 0 -7 50 Left 0
SYMATTR InstName Xtnor0
