Power gating circuit and integrated circuit including same

Details Power gating circuit and integrated circuit including same Power gating circuit and integrated circuit including same

2011-05-24

2011-05-24

Tran, Anh Q (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Signal level or switching threshold stabilization

C326S112000, C326S119000, C326S121000

Reexamination Certificate

active

07948263

ABSTRACT:
A power gating circuit includes a logic circuit, a switching element and a retention flip-flop. The logic circuit is coupled between a first power rail and a virtual power rail. The switching element selectively couples the virtual power rail to a second power rail in response to a mode control signal indicating an active mode or a standby mode. The retention flip-flop selectively performs a flip-flop operation or a data retention operation in response to a voltage of the virtual power rail.

REFERENCES:
patent: 6788122 (2004-09-01), Jones, Jr.
patent: 7649393 (2010-01-01), Maeda
patent: 2008/0106299 (2008-05-01), Oh
patent: 2005-268694 (2005-09-01), None
patent: 2006-042304 (2006-02-01), None
patent: 10-0734328 (2007-06-01), None

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