Integrated XNOR flip-flop

Details Integrated XNOR flip-flop Integrated XNOR flip-flop

1999-05-17

2000-05-02

Tokar, Michael

Electronic digital logic circuitry

Exclusive function

Exclusive nor

326 52, 326 55, 327166, H03K 1921

Patent

active

060577096

ABSTRACT:
An integrated XNOR flip-flop is provided which is faster than conventional XNOR flip-flop combinations. The integrated XNOR flip-flop is faster and uses less area than conventional XNOR flip-flop combinations. The integrated circuit has few gates along the critical path and takes advantage of the set up times inherent in the flip-flop. Accordingly, the integrated XNOR flip-flop is able to perform the same function in an expedient manner. In one illustrative embodiment, a plurality of the integrated XNOR flip-flops are used to compare a tag of a cache memory with an address to determine whether the desired address is available in the cache.

REFERENCES:
patent: 3646332 (1972-02-01), Suzuki
patent: 4424460 (1984-01-01), Best
patent: 4988901 (1991-01-01), Kamuro et al.
patent: 5087840 (1992-02-01), Davies et al.
patent: 5291076 (1994-03-01), Bridges et al.

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