CIRCUIT FOR GENERATING INITIALIZATION SIGNAL OF SEMICONDUCTOR MEMORY DEVICE, ESPECIALLY PREVENTING UNNECESSARY NOISE

摘要

PURPOSE: A circuit for generating an initialization signal of a semiconductor memory device is provided to perform initialization under an initial state when a command is not applied. CONSTITUTION: An inverter(20) receives a power up signal(pwrup), and an inverter(21) receives a register setting command signal(rstcmd). A NAND gate(22) receives outputs of the two inverters(20,21). An inverter(23) receives an initialization section setting signal(ckelow). An inverter(24) receives an output of the inverter(23). An NOR gate(25) receives an output of the NAND gate(22) and an output of the inverter(24). And an inverter(26) outputs an initialization signal(rstreg) by receiving an output of the NOR gate(25).