Low-power CAM cell

Details Low-power CAM cell Low-power CAM cell

2008-01-25

2008-08-19

Elms, Richard T. (Department: 2824)

Static information storage and retrieval

Associative memories

Compare/search/match circuit

C365S049110

Reexamination Certificate

active

07414873

ABSTRACT:
A CAM cell is provided that includes: an SRAM cell adapted to store a bit; a data line adapted to provide a corresponding comparand bit; an XOR gate adapted to XOR the stored bit and the comparand bit to provide an XOR output, and a switch adapted to close in response to the XOR output.

REFERENCES:
patent: 6191970 (2001-02-01), Pereira
patent: 6243280 (2001-06-01), Wong et al.
patent: 6411538 (2002-06-01), Kengeri
patent: 6768659 (2004-07-01), Gillingham et al.
patent: 6903953 (2005-06-01), Khanna
patent: 6967856 (2005-11-01), Park et al.
patent: 7006368 (2006-02-01), Arsovski et al.
patent: 7113415 (2006-09-01), Khanna
K. Pagiamtzis, “A Low-Powr Content-Addressable Memory (CAM) Using Pipelined Hierarchical Search Scheme,” IEEE Journal Solid Circuits, vol. 39,No. 9 Sep. 2004,pp. 1512-1519.

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