Invention Grant
- Patent Title: Content addressable memory
- Patent Title (中): 内容可寻址内存
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Application No.: US12849384Application Date: 2010-08-03
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Publication No.: US08902624B2Publication Date: 2014-12-02
- Inventor: Naoya Watanabe
- Applicant: Naoya Watanabe
- Applicant Address: JP Kanagawa
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Kanagawa
- Agency: McDermott Will & Emery LLP
- Priority: JP2009-180502 20090803
- Main IPC: G11C15/00
- IPC: G11C15/00 ; G11C15/04

Abstract:
The present invention provides a content addressable memory capable of higher frequency operation than conventional. When a search enable signal supplied from a search control circuit is asserted, each of search line drivers transfers search data to each CAM cell of a CAM memory array via a search line pair. The search line enable signal is transmitted to the search line drivers via a single control signal line coupled to the search control circuit. The control signal line is coupled to the search line drivers in such a manner that the search line enable signal passes through coupling nodes between the search line drivers and the control signal line in an arrangement order of the search line drivers from the side far away as viewed from match amplifiers.
Public/Granted literature
- US20110026288A1 CONTENT ADDRESSABLE MEMORY Public/Granted day:2011-02-03
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