Self-refresh control device

摘要

A self-refresh control device may be provided. The self-refresh control device may include a refresh signal output circuit configured to generate self-refresh signals with an oscillator and provide a refresh signal. The self-refresh control device may begin a self-refresh mode in response to a clock enable signal and a self-refresh signal within a self-refresh entry period, and may prevent performance of a new self-refresh operation by delaying an additional self-refresh signal until after the self-refresh entry period has ended.

主权项

1. A self-refresh control device comprising:
an enable signal generation circuit configured to latch a clock enable signal for a predetermined time to output an oscillation enable signal; an end signal generation circuit configured to select any one of the oscillation enable signal and a self-refresh command signal to output the selected signal as an oscillation end signal; and a refresh signal output circuit configured to generate a self-refresh signal in response to the oscillation end signal, and output a refresh signal by combining the oscillation end signal and the self-refresh signal.