Voltage supplier of semiconductor memory device
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United States of America Patent
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Mar 25, 2008
Grant Date -
Nov 10, 2005
app pub date -
Dec 21, 2004
filing date -
May 6, 2004
priority date (Note) -
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Abstract
The present invention provides voltage supplier for supplying an internal voltage with optimized drivability required for internal operation. The voltage supplier of a semiconductor memory device includes: an internal voltage detection means for detecting a voltage level of an internal voltage; a clock oscillation means for outputting a charge pumping clock signal; an internal voltage control means for controlling the clock oscillation means to be performed selectively in accordance with a data access mode or a non-data access mode; and a charge pumping means for outputting the internal voltage required for internal operation by pumping charges in response to the charge pumping clock signal.
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