Pseudo ternary content addressable memory device having row...

Details Pseudo ternary content addressable memory device having row... Pseudo ternary content addressable memory device having row...

2007-05-22

2007-05-22

Dinh, Son T. (Department: 2824)

Static information storage and retrieval

Associative memories

Ferroelectric cell

C365S189070, C365S200000

Reexamination Certificate

active

11281227

ABSTRACT:
A pseudo ternary content addressable memory (PTCAM) device (100) can include a number of PTCAM blocks (102-0to102-63), each of which can include a number of standard PTCAM rows (106-0to106-63) and a standard memory row (104-0to104-63) for storing and providing mask information for the PTCAM rows. Redundancy for replacing a defective standard PTCAM row can be provided by a redundant section (108) that include fewer PTCAM rows than in a PTCAM block (102-0to102-63). Non-defective PTCAM rows within a standard PTCAM block containing a defective PTCAM row can continue to operate.

REFERENCES:
patent: 6766317 (2004-07-01), Sharma et al.
patent: 6781857 (2004-08-01), Lien et al.
patent: 2003/0165073 (2003-09-01), Lien et al.

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