Patent ID: 7215178

Claim:
A MOS type semiconductor integrated circuit device, comprising: a plurality of MOS type circuits, each of which has at least one P-channel MOS transistor and one N-channel MOS transistor and has a power supply node, the MOS type circuits being connected in a multistage manner that an output signal at a front stage is supplied as an input signal at a rear stage; a first switch element inserted between a first power voltage node and a power supply node of each of MOS type circuits at an odd numbered stage viewed from a final stage from among said plurality of MOS type circuits; a second switch element inserted between the first power voltage node and a power supply node of each of MOS type circuits at an even numbered stage viewed from the final stage from among said plurality of MOS type circuits; and a control circuit connected to the first and second switch elements to control the first and second switch elements, the control circuit first making the second switch element conductive, and then, making the first switch element conductive when said plurality of MOS type circuits, each of which is established in a standby state, are recovered from the standby state to an active state.