| SRAM Cell Read SNM |
| * Static Noise Margin |
| |
| .lib "./libs/models/sky130.lib.spice" tt |
| |
| XM1 qbar1 q1 gnd gnd sky130_fd_pr__nfet_01v8 W=0.42 l=0.21 |
| XM2 qbar1 q1 vdd vdd sky130_fd_pr__pfet_01v8 W=0.84 l=0.21 |
| XM5 qbar1 vdd vdd gnd sky130_fd_pr__nfet_01v8 W=0.42 l=0.21 |
| |
| XM3 q2 qbar2 gnd gnd sky130_fd_pr__nfet_01v8 W=0.42 l=0.21 |
| XM4 q2 qbar2 vdd vdd sky130_fd_pr__pfet_01v8 W=0.84 l=0.21 |
| XM6 q2 vdd vdd gnd sky130_fd_pr__nfet_01v8 W=0.42 l=0.21 |
| |
| V1 vdd gnd 1.8V |
| V2 q1 gnd dc 1.8V |
| V3 qbar2 gnd dc 1.8V |
| .dc V2 0 1.8 0.01 V3 0 1.8 0.01 |
| .control |
| run |
| plot V(qbar1) vs V(q1) V(qbar2) vs V(q2) |
| .endc |
| .end |
| |
| |