SEMICONDUCTOR DEVICE AND OPRATING METHOD THEREOF

摘要

PURPOSE: A semiconductor device and an operating method thereof quickly and reliably read data stored in a memory cell by increasing a level difference between a bit line and a complementary bit line during a precharge operation when a power supply voltage is low. CONSTITUTION: A sense amplifier (130-1) is connected between a bit line and a complementary bit line. A first power supply circuit (MP1) floats a first node among power nodes of the sense amplifier based on a first control signal. A first boosting circuit (132) boosts the floated first node based on a second control signal.