CMPEN 411 VLSI Digital Circuits

Kyusun Choi

Circuit SimulationHspice Tip

Hspice circuit simulation program

0. Design synthesis

1. Before the expensive chip fabrication

2. Be sure correct working

3. Estimate its performance parameters

Hspice circuit simulation

Simple example of 2 input AND gate

Hspice circuit simulation: and2

Hspice circuit simulation: and2

and2.s

netlist file

Hspice circuit simulation: and2

and2.hsp

command file

Hspice circuit simulation: and2

and2.hsp

command file

Combine and2.hsp and and2.s files to generate

and2.sp spice simulation file:

% hsp50 and2

Hspice circuit simulation: and2

and2.sp

spice file

Hspice circuit simulation: and2

and2.sp

spice file

Hspice circuit simulation: and2

and2.sp

spice file

Hspice circuit simulation: and2

and2.sp

spice file

Hspice circuit simulation: and2

and2.sp

spice file

Hspice circuit simulation: and2

% hspice and2.sp

Run

simulation

Hspice circuit simulation: and2

% sc and2.tr0 &

View

result

Hspice circuit simulation: and2

Timing measurement on the signal plot

Hspice circuit simulation: and2

and2.hsp

command file

Add useful

spice

.MEASURE

commands

Hspice circuit simulation: and2

Resulting

and2.sp

spice file

with

.MEASURE

commands

Hspice circuit simulation: and2

.MEASURE

Results: