Refresh control circuit and method for semiconductor memory...

Details Refresh control circuit and method for semiconductor memory... Refresh control circuit and method for semiconductor memory...

2005-05-17

2005-05-17

Le, Thong Q. (Department: 2818)

Static information storage and retrieval

Read/write circuit

Data refresh

C365S197000

Reexamination Certificate

active

06894942

ABSTRACT:
A refresh control circuit and a method for refreshing control of a semiconductor memory device are described. The refresh control circuit includes a sense amplifier control circuit configured to generate a sense amplifier driving signal by selectively applying a first delay time and a second delay time (first delay time+third delay time) in response to a sense amplifier enable signal and a refresh command signal (or refresh fail detect signal), and a sense amplifier driver configured to output a sense amplifier driving voltage by applying the first delay time or the second delay time according to a mode.

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