Semiconductor integrated circuit with flip-flop circuits...

Details Semiconductor integrated circuit with flip-flop circuits... Semiconductor integrated circuit with flip-flop circuits...

2008-03-07

2010-06-29

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Particular stable state circuit

C327S218000

Reexamination Certificate

active

07746138

ABSTRACT:
A plurality of flip-flop circuits, having different circuit configurations, which perform an identical digital signal processing are mixed on a single semiconductor substrate. A first flip-flop circuit among the plurality of flip-flop circuits receives a clock signal supplied from outside the flip-flop circuits, through at least two stage inverters, and operates with clock signals outputted from the inverters. A second flip-flop circuit receives the clock signal supplied from outside the flip-flop circuits through at least one inverter having a less number of stages than the number of stages of the inverter contained in the first flip-flop circuit, and operates with at least one of the clock signal and a clock signal outputted from the inverter.

REFERENCES:
patent: 6621306 (2003-09-01), Ooishi et al.
patent: 7443218 (2008-10-01), Onouchi et al.
patent: 2002/0005745 (2002-01-01), Robertson et al.
patent: 2004/0088659 (2004-05-01), Mori
patent: 05-054100 (1993-05-01), None

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