Version 4
SHEET 1 2496 1988
WIRE 208 528 -160 528
WIRE 208 528 208 560
WIRE -336 496 -336 528
WIRE -336 416 -336 384
WIRE -208 256 -160 256
WIRE 208 288 208 256
WIRE 208 256 256 256
WIRE 208 368 208 400
WIRE -32 400 208 400
WIRE 208 400 208 432
WIRE -96 400 -160 400
WIRE -160 400 -160 432
WIRE -160 400 -160 256
WIRE -160 256 -112 256
WIRE -160 496 -160 528
WIRE -160 528 -336 528
WIRE 208 496 208 528
WIRE 176 256 208 256
WIRE -32 256 64 256
WIRE 64 256 64 208
WIRE 64 256 96 256
WIRE 64 208 256 208
FLAG 208 560 0
FLAG 256 256 AC
IOPIN 256 256 Out
FLAG -336 384 +5V
IOPIN -336 384 Out
FLAG -208 256 IN
IOPIN -208 256 In
FLAG 256 208 OP
IOPIN 256 208 Out
SYMBOL voltage -336 400 R0
WINDOW 0 37 45 Left 0
WINDOW 3 34 69 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V5
SYMATTR Value +5V
SYMBOL MISC\\XTAL -32 384 R90
WINDOW 0 61 35 VBottom 0
WINDOW 3 56 32 VTop 0
SYMATTR InstName Y1
SYMATTR Value 5p
SYMATTR SpiceLine Rser=0.1 Lser=5 Cpar=50p
SYMBOL res 192 272 R0
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL res -16 240 R90
WINDOW 0 -35 56 VBottom 0
WINDOW 3 -38 49 VTop 0
SYMATTR InstName R2
SYMATTR Value 1E6
SYMBOL cap 192 432 R0
WINDOW 0 37 12 Left 0
WINDOW 3 38 33 Left 0
SYMATTR InstName C1
SYMATTR Value 220p
SYMBOL cap -176 432 R0
WINDOW 0 -51 12 Left 0
WINDOW 3 -51 34 Left 0
SYMATTR InstName C2
SYMATTR Value 470p
SYMBOL voltage 192 256 R90
WINDOW 0 60 77 VBottom 0
WINDOW 3 32 56 VTop 0
WINDOW 123 58 54 VTop 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value ""
SYMATTR Value2 AC 1 0
TEXT -352 -128 Left 0 ;.tran 0 10m 0 startup
TEXT -344 -72 Left 0 !MP1 OP  IN +5V +5V  MHCPEF W=  88U L=2.4U AD= 350P AS= 350P PD=100U PS=  88U\nMN1 OP  IN 0 0  MHCNEF W=  56U L=2.4U AD= 225P AS= 225P PD= 70U PS=  56U
TEXT -352 -8 Left 0 !.Model MHCNEF NMOS(+LEVEL=3 KP=49.6E-6 VTO=0.52 TOX=49.0E-9 NSUB=4.0E15\n+GAMMA=0.74 PHI=0.65 VMAX=135E3 RS=30 RD=30 XJ=0.10E-6 LD=0.69E-6\n+DELTA=0.38 THETA=0.048 ETA=0.020 KAPPA=0.0 WD=0.5E-6)
TEXT -352 80 Left 0 !.Model MHCPEF PMOS(LEVEL=3 KP=24.6E-6 VTO=-0.51 TOX=49.0E-9 NSUB=3.6E16\n+GAMMA=0.82 PHI=0.65 VMAX=600E3 RS=60 RD=60 XJ=0.61E-6 LD=0.35E-6\n+DELTA=2.12 THETA=0.100 ETA=0.260 KAPPA=0.0 WD=0.5E-6)
TEXT -352 -104 Left 0 !.ac dec 20 1 1E6