Content addressable memory (CAM) cell having column-wise...

Details Content addressable memory (CAM) cell having column-wise... Content addressable memory (CAM) cell having column-wise...

2008-10-22

2010-10-12

Ho, Hoai V (Department: 2827)

Static information storage and retrieval

Associative memories

Compare/search/match circuit

C365S049100, C365S049110

Reexamination Certificate

active

07813155

ABSTRACT:
A content addressable memory (CAM) device can include a plurality of CAM cells arranged in rows and columns to form multi-byte words. Each CAM cell can include a comparator circuit and one or more data storing circuits. Each comparator circuit can have one or more charge transfer paths arranged between a match line and a first voltage source node. Each data storing circuit can include a write circuit that provides a controllable impedance path between one or more charge transfer paths and a data storage node of the data storing circuit.

REFERENCES:
patent: 6266263 (2001-07-01), Lien et al.
patent: 7173837 (2007-02-01), Bettman et al.
patent: 7298635 (2007-11-01), Maheshwari
patent: 7433217 (2008-10-01), Maheshwarl
patent: 7450409 (2008-11-01), Maheshwari
patent: 7570503 (2009-08-01), Maheshwari et al.

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