Low leakage power management

Details Low leakage power management Low leakage power management

2011-08-23

2011-08-23

Hiltunen, Thomas J (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C326S034000

Reexamination Certificate

active

08004352

ABSTRACT:
A low leakage power management system is provided. An external voltage domain is selectively coupled to the internal voltage domain of an integrated circuit according to demand for the functions provided by the integrated circuit. An external voltage VDDis connected to the internal supply voltage plane of the integrated circuit when the integrated circuit is active. The external supply voltage VDDis disconnected from the integrated circuit chip during idle periods. A plurality of switch cells may be provided for connecting the external voltage VDDto the integrated circuit. A multi-step sequence is provided for connecting the external supply voltage VDDto the chip's internal supply voltage plane to prevent excessive current from flowing through any individual switch cell.

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