* lab2d - 5 stage driver
.options list node post
.model pch pmos
.model nch nmos
.tran 1n 10n
.print tran v(1) v(2) i(vcc)
.global vcc
vcc vcc 0 5
vin 1 0 2.5 pulse .2 4.8 2n 1n 1n 5n 20n
xinv1 1 2 inv
xinv2 2 3 inv
xinv3 3 4 inv
xinv4 4 5 inv
xinv5 5 6 inv
cd1 6 0 1.75f
.subckt inv in out 
m1 vcc in out vcc pch l=1u w=20u
m2 out in 0 0 nch l=1u w=20u
.ends inv
.end