Semiconductor device

摘要

A semiconductor device having a power-saving circuit. The semiconductor device includes an input-output terminal and a holding circuit. When the input-output terminal is used, an inverter loop of the holding circuit is made not to operate by controlling a switch, and when the input-output terminal is not used, the inverter loop of the holding circuit operate by controlling the switch. Power consumption of the holding circuit can be reduced. An OS transistor is preferably used for the switch.

主权项

1. A semiconductor device comprising:
an input-output terminal; a three-state buffer directly connected to the input-output terminal; and a first circuit electrically connected to the input-output terminal, the first circuit comprising a first inverter, a second inverter, and a first switch, wherein an input terminal of the first inverter is electrically connected to an output terminal of the second inverter, wherein an output terminal of the first inverter is electrically connected to an input terminal of the second inverter, and wherein the first inverter is electrically connected to a high-potential power source or a low-potential power source via the first switch.