SCHMIDT TRIGGER CIRCUIT, SEMICONDUCTOR DEVICE, AND METHOD OF MANUFACTURING SCHMIDT TRIGGER CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a Schmidt trigger circuit with a simple configuration, which reduces power consumption and easily adjusts hysteresis characteristics.;SOLUTION: The Schmidt trigger circuit includes: a first PMOS transistor 10 connected in series between a power supply voltage and a reference potential; second PMOS transistor 20; second NMOS transistor 30; first NMOS transistor 40; inverter circuit 70; third PMOS transistor 50 connected in parallel to the transistor 10 and having a gate connected to an output terminal; and third NMOS transistor 60 connected in parallel to the transistor 40 and having a gate connected to an output terminal. A gate of the transistor 10 is connected to the reference potential, a gate of the transistor 40 is connected to the power supply voltage, and gates of the transistors 20 and 30 are commonly connected to the input terminal.;COPYRIGHT: (C)2005,JPO&NCIPI