Patent ID: 7956677
Filing Date: 2011-06-07
Classification: H03K

Abstract:
1. A semiconductor integrated circuit comprising: a first voltage line on which a specific one of a power-supply voltage and a reference voltage appears; a second voltage line; a plurality of circuit cells each receiving power generated as a difference between a voltage appearing on said second voltage line and the other one of said power-supply voltage and said reference voltage; a plurality of switch transistors connected in parallel between said first and second voltage lines to serve as switch transistors including switch transistors having conducting-state resistances which are different from each other; and a switch conduction control section configured to control a transition of each of said switch transistors from a non-conducting state to a conducting state at separate points of time while abiding by a rule stating: any specific one of said switch transistors shall be put in a conducting state only after all said switch transistors each having a conducting-state resistance greater than the conducting-state resistance of said specific switch transistor have been put in a conducting state.