Isolator circuit and semiconductor device

摘要

An isolator circuit capable of two-way electrical disconnection and a semiconductor device including the isolator circuit are provided. A data holding portion is provided in an isolator circuit without the need for additional provision of a data holding portion outside the isolator circuit, and data which is to be input to a logic circuit that is in an off state at this moment is stored in the data holding portion. The data holding portion may be formed using a transistor with small off-state current and a buffer. The buffer can include an inverter circuit and a clocked inverter circuit.

主权项

1. An isolator circuit comprising:
a first terminal; a second terminal; a first transistor; a second transistor; a first buffer; and a second buffer, wherein the first terminal is electrically connected to one of a source and a drain of the first transistor, wherein the first terminal is electrically connected to an output terminal of the second buffer, wherein the other of the source and the drain of the first transistor is electrically connected to an input terminal of the first buffer, wherein an input terminal of the second buffer is electrically connected to one of a source and a drain of the second transistor, wherein the second terminal is electrically connected to an output terminal of the first buffer, and wherein the second terminal is electrically connected to the other of the source and the drain of the second transistor.