Integrated circuit devices that support dynamic voltage scaling of power supply voltages
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United States of America Patent
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Aug 12, 2008
Grant Date -
Aug 25, 2005
app pub date -
Feb 18, 2005
filing date -
Feb 20, 2004
priority date (Note) -
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Abstract
An integrated circuit device is provided with a power supply voltage generator therein. This voltage generator is configured to respond to an operating mode control signal by generating first and second power supply voltages at equivalent voltage levels when the operating mode control signal designates a normal mode of operation within the integrated circuit device. The power supply voltage generator is also configured to reduce the first and second power supply voltages to unequal lower voltage levels when the operating mode control signal designates a power saving mode of operation within the integrated circuit device. The power supply voltage generator may also generate a third power supply voltage at a constant level during both the normal and power saving modes of operation.
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