Abstract: Disclosed is a low power consuming logic circuit to restrain a short circuit current which flows within an inverter circuit of an inverter having a clock input connected behind a pass-transistor logic circuit. In the logic circuit, the inverter having a clock input is provided on the output of a pass-transistor logic circuit. The inverter having a clock input includes the inverter circuit and write control means. A data holding circuit is connected to the output of the write control means. In the logic circuit, a clock is input to the inverter having a clock input after the output of the pass-transistor logic circuit is stabilized. Thus, the short circuit current which flows in the inverter circuit is restrained. In addition to the logic circuit, a positive feedback circuit for supplying an inverted signal from the inverter circuit to the output of the inverter having a clock input can be provided.