Sense amplifier enable signal generator for semiconductor memory device

摘要

A sense amplifier enable signal generator for a semiconductor memory device, comprising a counter for generating a pulse signal synchronously with a clock signal when a row address strobe bar signal is made active and suppressing the generation of the pulse signal when the row address strobe bar signal is disabled, and a comparator for generating a sense amplifier enable signal when an output value from the counter reaches a predetermined time delay value and suppressing the generation of the sense amplifier enable signal when the row address strobe bar signal is disabled. According to the present invention, a sense amplifier can be operated at a proper time without being affected by a process parameter, an operating voltage, temperature, etc.