SEMICONDUCTOR INTEGRATED CIRCUIT

摘要

PROBLEM TO BE SOLVED: To reduce power consumption by suppressing transition of data while suppressing increase of the chip area due to addition of a circuit. SOLUTION: Input section 110 of a second logic circuit 140 is constituted of an inverter while separating the power supply thereof from a processing section 120 and connected with an output fixing signal s150 being generated from an output fixing signal generating means 150. When the outputs s111o-s116o at the input section 110 is fixed to logic "0", the output fixing signal s150 is set at logic "0" . Power consumption can be reduced by providing a means for fixing the data input while suppressing increase in the chip area due to addition of a circuit by dropping the output forcibly to logic "0" utilizing a pMOS in the inverter thereby suppressing transition of a nonoperating circuit. COPYRIGHT: (C)2004,JPO