SEMICONDUCTOR MEMORY DEVICE

摘要

PURPOSE: A semiconductor memory device is provided to prevent an area of a semiconductor memory device from increasing by sharing a voltage terminal driving circuit and a voltage detection circuit. CONSTITUTION: A discharge pulse generator(350) generates a discharge pulse determining an activation section in response to an active signal and an auto refresh signal corresponding to banks. A discharge common voltage detector(300) detects the voltage level of the internal voltage terminal based on a first target level in response to the discharge pulse. A discharge common driver(310) discharges and drives the internal voltage terminal in response to the output signal of the discharge common voltage detector.