Single ended match sense amplifier

Details Single ended match sense amplifier Single ended match sense amplifier

1997-09-30

1999-08-10

Nelms, David

Static information storage and retrieval

Associative memories

Ferroelectric cell

365203, G11C 1500

Patent

active

059368730

ABSTRACT:
A single-ended match sense amplifier is provided for use in a translation lookaside buffer. The translation lookaside buffer includes a CAM array for storing x bit virtual addresses. The CAM array has n rows and x columns of CAM cells, each CAM cell having input node for receiving a virtual address bit signal, and a CAM miss/match node. N rows and minor sense amplifier circuits are coupled to n major sense amplifier circuits via n major sense lines. Each minor sense amplifier circuit has a minor sense input node, and a minor sense miss/match node. Each minor sense line is also coupled to at least two CAM cell miss/match nodes. A minor sense precharging device is coupled to each minor sense line. The minor sense precharging device selectively conducts current to precharge the minor sense lines to a first predetermined voltage. Each of the major sense amplifiers has a major sense input node, and a major sense miss/match node. Each major sense line is coupled to at least two minor sense miss/match nodes and one major sense input node. Major sense precharging devices are coupled to each major sense line. The major sense precharging devices selectively conduct current to precharge the major sense lines to the first predetermined voltage.

REFERENCES:
patent: 5222222 (1993-06-01), Mehring et al.
patent: 5299147 (1994-03-01), Holst
patent: 5327372 (1994-07-01), Oka et al.
patent: 5475825 (1995-12-01), Yonezawa et al.
patent: 5638315 (1997-06-01), Braceras et al.
patent: 5642114 (1997-06-01), Komoto et al.
U.S. application No. 08/940,297.

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