Semiconductor memory device with a self refresh mode
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United States of America Patent
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Nov 25, 2003
Grant Date -
Jul 25, 2002
app pub date -
Jan 18, 2002
filing date -
Jan 22, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A semiconductor memory device having a self refresh mode may enter the self refresh mode in response to a self refresh set command and may be released from the self-refresh mode in response to a self refresh release command. The self refresh release command may include a plurality of self refresh release commands sequentially executed while a clock enable signal (CKE) is in a clock enable state. In this way, noise on a clock enable signal may not erroneously release the self refresh mode and the reliability of the self refresh mode may be improved.
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