Flip-flop and semiconductor integrated circuit

Details Flip-flop and semiconductor integrated circuit Flip-flop and semiconductor integrated circuit

2007-10-23

2009-11-10

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Particular stable state circuit

C327S212000, C327S218000, C327S219000

Reexamination Certificate

active

07616040

ABSTRACT:
A flip-flop is disclosed which includes: a clock supply circuit configured to output or fix a clock signal alternating between two predetermined states in accordance with a sleep signal; a first holding circuit configured to fetch or hold an input signal in accordance with a state the clock signal indicates; a second holding circuit configured to fetch or hold a first signal output by the first holding circuit in accordance with a state the clock signal indicates; an input switching circuit configured to supply as the input signal a second signal output by the second holding circuit or to supply an external signal as the input signal in accordance with the hold signal; and a power supply control circuit configured to supply or not to supply power to the first holding circuit and the input switching circuit in accordance with a power supply control signal.

REFERENCES:
patent: 6614276 (2003-09-01), Robertson et al.
patent: 7492202 (2009-02-01), Inoue
patent: 2004/0090256 (2004-05-01), Cho
patent: 05-191219 (1993-07-01), None
patent: 08-256044 (1996-10-01), None
patent: 09-284101 (1997-10-01), None
patent: 11-284493 (1999-10-01), None
patent: 2001-257566 (2001-09-01), None

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