发明名称 |
INTERNAL VOLTAGE GENERATING CIRCUIT |
摘要 |
Disclosed is an internal voltage generating circuit that pumps charge to generate an internal driving voltage. The internal voltage generating circuit includes: a first oscillation signal generating unit that provides a first oscillation signal in response to a detected internal voltage and a predetermined test mode signal; a second oscillation signal generating unit that divides an external clock to provide a second oscillation signal having a variable oscillation period; and a switching unit that selects the first oscillation signal or the second oscillation signal in response to the predetermined test mode signal and provides the selected signal as a pumping period signal.
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申请公布号 |
US2009091376(A1) |
申请公布日期 |
2009.04.09 |
申请号 |
US20080051748 |
申请日期 |
2008.03.19 |
申请人 |
HYNIX SEMICONDUCTOR, INC. |
发明人 |
KIM MYUNG-JIN;KIM DONG-HWEE |
分类号 |
G05F1/10;H03K3/03 |
主分类号 |
G05F1/10 |
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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