发明名称 |
High voltage generator and semiconductor memory device |
摘要 |
A high voltage generator includes: a high voltage detecting unit for detecting a level of a high voltage and outputting a high enable signal; an auto refresh control unit for enabling an auto refresh high enable signal in response to a detection signal enabled when a level of a power supplying voltage is lower than a certain level and in response to the pumping enable signal during an auto refresh operation; and a high voltage generating unit for generating a high voltage by performing a pumping operation in response to the auto refresh pumping enable signal.
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申请公布号 |
US7573771(B2) |
申请公布日期 |
2009.08.11 |
申请号 |
US20060528531 |
申请日期 |
2006.09.28 |
申请人 |
HYNIX SEMICONDUCTOR, INC. |
发明人 |
KIM KYUNG-WHAN |
分类号 |
G11C7/00 |
主分类号 |
G11C7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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