PRECHARGE METHOD OF SEMICONDUCTOR MEMORY DEVICE FOR CONTORLLING PRECHARGE STARTING TIME OF EACH BANK AT BANK PRECHARGE OPERATION AND SEMICONDUCTOR MEMORY DEVICE USING IT

摘要

PURPOSE: A precharging method for a semiconductor memory device and the semiconductor memory device using the same are provided to perform a precharge operation by reducing a power noise by differently controlling a precharge operation point at each bank according to a write sequence. CONSTITUTION: A bank selector(2) activates corresponding row decoder among a plurality of row decoders(3) in response to a bank address. A column decoder designates a specific row of a memory cell array(5). The memory cell array includes a sense amplifier unit comprised of a plurality of sense amplifiers. A command decoder(6) outputs a bank precharge command and all precharge commands. A precharge controller(7) outputs a row decoder by activating a plurality of final precharge signals.