SEMICONDUCTOR MEMORY DEVICE

摘要

PURPOSE: A semiconductor memory device is provided to improve performance characteristics by enhancing the sensing margin of a sensing amp. CONSTITUTION: In a semiconductor memory device, a sense amp drive controller includes a first driving controller and a second driving controller. A connection part interlinks a first bit line and a second bit line. A connection controller generates a connect signal which activates the connection part. The connection controller includes a signal input unit and a level shifter(520). A signal input unit generates an internal signal. The level shifter shifts the level of the internal signal and outputs the connection signal.