Non-volatile NOR-type CAM memory

Details Non-volatile NOR-type CAM memory Non-volatile NOR-type CAM memory

2005-09-13

2005-09-13

Yoha, Connie C. (Department: 2827)

Static information storage and retrieval

Associative memories

Ferroelectric cell

C365S185180, C365S185050

Reexamination Certificate

active

06944038

ABSTRACT:
A non-volatile CAM-type memory having a multiplicity of memory cells ordered into a matrix of rows and columns, a word line and a match line associated with every row of cells and a first and a second bit line associated with every column of cells. In order to speed up the search for a data item in the memory and to simplify the circuit structure of the memory, each row of cells is associated with a ground control line and a ground line and every cell also includes a first controlled electronic switch connected between a ground line and a match line associated with the row containing the cell and having a control terminal connected to a match node of the cell and a second controlled electronic switch connected between the match node of the cell and the ground line associated with the row containing the cell, and further having a control terminal connected to the ground control line associated with the row containing the cell.

REFERENCES:
patent: 5051948 (1991-09-01), Watabe et al.
patent: 5111427 (1992-05-01), Kobayashi et al.
patent: 6005790 (1999-12-01), Chan et al.
patent: 6373739 (2002-04-01), Lien et al.
patent: 6542392 (2003-04-01), Yanagawa
U.S. Appl. No. 10/676,731, filed Oct. 1, 2003, de Sandre.

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