esd/testcase07.sp

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* I/O Port Diode Protection

.include "models.sp"

.subckt testcase07 PAD1_OK PAD2_BAD PAD3_BAD PAD4_BAD
* OK, with both diodes
D1 GND PAD1_OK diode
D2 PAD1_OK VDD diode
M1 VDD PAD1_OK GND GND nch

* BAD, up diode missing
D3 GND PAD2_BAD diode
M2 VDD PAD2_BAD GND GND nch

* BAD, down diode missing
D4 PAD3_BAD VDD diode
M3 VDD PAD3_BAD GND GND nch

* BAD, both diodes missing
M4 VDD PAD4_BAD GND GND nch

.ends

.end