Static protection circuit for a semiconductor integrated circuit device

摘要

A static protection circuit for a semiconductor integrated circuit device which provides static protection for an integrated circuit driven on multiple different power supply voltages is provided. The static protection circuit comprises a transistor having its two controlled terminals connected to each of the power supply lines and a GND line, respectively, and its control line connected to one of said controlled terminals; and a transistor having its controlled terminals connected to each of said power supply lines and its control terminal to which a nonconductive voltage is applied.