Content addressable memory (CAM) devices that support power...

Details Content addressable memory (CAM) devices that support power... Content addressable memory (CAM) devices that support power...

2006-05-23

2006-05-23

Nguyen, Tan T. (Department: 2827)

Static information storage and retrieval

Associative memories

Ferroelectric cell

C365S189050, C711S108000

Reexamination Certificate

active

07050317

ABSTRACT:
Content addressable memory (CAM) devices include at least one CAM array having a plurality of columns of ternary CAM cells therein. A bit/data line driver circuit, which receives search words and write words, is electrically coupled to the CAM array. The bit/data line driver circuit is configured to save power by logically combining incoming search words with a global mask that designates locations of active ones of the plurality of columns having exclusively locally masked CAM cells at valid entries therein. The bit/data line driver circuit includes a global mask generator configured to receive write words to be added to the CAM array during respective write operations.

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