SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit device for mounting a reference voltage generation circuit for performing tuning without changing the circuit when process conditions fluctuate. SOLUTION: This semiconductor integrated circuit device is provided with a voltage drop circuit for supplying a control signal for switching switches MSW1 and /MSW1 being formed by a test mode for tuning from a switch control circuit to the reference voltage generation circuit that is configured so that two circuit configurations with different temperature characteristics are switched by the switches MSW1 and /MSW1, and tuning is made by the switching of switches SW1-SW4, and then supplying a control signal by cutting off the fuse of the switch control circuit, and outputting a reference voltage Vref using a reference voltage generation circuit.