Invention Grant
- Patent Title: Low power ternary content-addressable memory (TCAM)
- Patent Title (中): 低功耗三元内容可寻址存储器(TCAM)
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Application No.: US12111350Application Date: 2008-04-29
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Publication No.: US08125810B2Publication Date: 2012-02-28
- Inventor: Patrick W. Bosshart
- Applicant: Patrick W. Bosshart
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent John R. Pessetto; W. James Brady; Frederick J. Telecky, Jr.
- Main IPC: G11C19/00
- IPC: G11C19/00

Abstract:
An integrated circuit (200) includes a semiconductor memory device (202) operative for determining match between received search data and stored data in a plurality of ternary content addressable memory (TCAM) bitcells (100). The plurality of TCAM bitcells (100) each include bit storage including a pair of memory cells (102-0, 102-1) for holding stored data. The TCAM bitcells (100) also include bit comparison circuitry (104) operative for comparing between the stored data and search data on a search line coupled to the TCAM bitcell, wherein the bit comparison circuitry includes a static logic gate operable to provide a match output signal exclusive of a pulsed input. Match circuitry (205) is coupled to receive the match output signal (108) from the plurality of TCAM bitcells (100) for determining whether a match is present for a given search word.
Public/Granted literature
- US20090034311A1 LOW POWER TERNARY CONTENT-ADDRESSABLE MEMORY (TCAM) Public/Granted day:2009-02-05
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