Semiconductor integrated circuit

摘要

A semiconductor integrated circuit in which a semiconductor chip 4 having a semiconductor memory and a mother chip 2 having logic circuit are mounted in a single package, wherein the leak current of the semiconductor chip 4 is reduced in standby state. A switch cell 20 that connects to the power pad 10 of the semiconductor chip 4 and that supplies power voltage from the exterior to the semiconductor chip 4 is provided to the mother chip 2 . The switch cell 20 cuts off the connection between the power pad 10 of the semiconductor chip 4 and the power voltage line of the semiconductor memory of the mother chip 2 by using a control signal from a control circuit when the semiconductor memory is in standby mode. Leak current generated in the semiconductor memory can thereby be reduced.