SEMICONDUCTOR MEMORY DEVICE

摘要

A semiconductor memory device includes: a memory-cell array provided between a first region and a second region, and including a plurality of memory cells; a first row decoder and a second row decoder; a first power line provided in the first region; a second power line provided in the first region; a first power-supply circuit configured to supply the first voltage to the first power line and to the second power line; a first switching circuit; and a second switching circuit. In a write operation, the first switching circuit connects the first power line and the first power-supply circuit to each other whereas the second switching circuit disconnects the second power line and the first power-supply circuit from each other.