The purpose of the present invention is to realize reduction of power consumption of reconfigurable integrated circuits such as FPGAs by decreasing leakage current in SRAMs.A reconfigurable integrated circuit is provided which includes transistors and comprises a first switch with an input terminal, an output terminal, and a control terminal, a first memory with a memory cell connected to the control terminal of the first switch, a second switch capable of shutting down a power supply line or a ground line of the first memory, and a second memory to control the second switch, wherein a value to open the second switch is written into the second memory when the first switch is not operated, thereby shutting down the power supply line or the ground line of the first memory.