SELF REFRESH CIRCUIT OF SEMICONDUCTOR MEMORY APPARATUS

摘要

A self refresh circuit of a semiconductor memory apparatus is provided to prevent a glitch self refresh pulse from being outputted. A pulse generation unit(100) generates a pulse by receiving an oscillator signal. An enable signal generation unit(200) generates an enable signal enabled in response to a self refresh enable signal, and generates the enable signal disabled in response to the pulse and a self refresh precharge signal. A self refresh pulse generation unit(150) outputs the pulse as a self refresh pulse in response to the enable signal. The pulse generation unit generates the pulse enabled at timing when the oscillator signal is disabled.