LOGIC CIRCUIT AND SEMICONDUCTOR DEVICE INCLUDING LOGIC CIRCUIT

摘要

A logic circuit that can retain a state even without power supply is provided. The logic circuit includes a first circuit, a pair of retention circuits, and a second circuit. The pair of retention circuits includes two switches electrically connected to each other in series and a capacitor electrically connected to a connection portion of the two switches. Each of the two switches is formed using an oxide semiconductor transistor. The first circuit has a function of generating complementary data from a piece of input data. The pair of retention circuits retains the complementary data. The second circuit has a function of amplifying the complementary data retained in the pair of retention circuits.

主权项

1. A logic circuit comprising:
a first circuit; a first retention circuit; a second retention circuit; and a second circuit, wherein each of the first retention circuit and the second retention circuit comprises a first switch and a second switch electrically connected to each other in series and a capacitor electrically connected to a connection portion of the first switch and the second switch, wherein each of the first switch and the second switch of each of the first retention circuit and the second retention circuit is a transistor comprising a channel formation region comprising an oxide semiconductor, wherein the first circuit is configured to generate complementary data from a piece of input data, wherein the first retention circuit and the second retention circuit are configured to retain the complementary data, and wherein the second circuit is configured to amplify the complementary data retained in the first retention circuit and the second retention circuit.