Patent ID: 7532036
Filing Date: 2009-05-12
Classification: H03K

Abstract:
1. A semiconductor device comprising: a main power supply wiring; a pseudo power supply wiring; a circuit block including a plurality of transistors, in which a source of at least one of the transistors that is fixed to turn off in a standby state is connected to the pseudo power supply wiring; and first and second transistors connected in parallel between the main power supply wiring and the pseudo power supply wiring, turning on in an active state, and turning off in a standby state, wherein: the first transistor has a first conductivity type; the second transistor has a second conductivity type different from the first conductivity type; and a source of at least one of the transistors included in the circuit block that is fixed to turn on in the standby state is connected to the main power supply wiring.