JP5064171B2 - 連想記憶装置 - Google Patents

連想記憶装置 Download PDF

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Publication number
JP5064171B2
JP5064171B2 JP2007283462A JP2007283462A JP5064171B2 JP 5064171 B2 JP5064171 B2 JP 5064171B2 JP 2007283462 A JP2007283462 A JP 2007283462A JP 2007283462 A JP2007283462 A JP 2007283462A JP 5064171 B2 JP5064171 B2 JP 5064171B2
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JP
Japan
Prior art keywords
line
search
match
match line
field effect
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Active
Application number
JP2007283462A
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English (en)
Japanese (ja)
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JP2009110616A5 (enExample
JP2009110616A (ja
Inventor
勝己 堂阪
和民 有本
吉雄 松田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renesas Electronics Corp
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Renesas Electronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Renesas Electronics Corp filed Critical Renesas Electronics Corp
Priority to JP2007283462A priority Critical patent/JP5064171B2/ja
Priority to US12/261,598 priority patent/US8169807B2/en
Publication of JP2009110616A publication Critical patent/JP2009110616A/ja
Publication of JP2009110616A5 publication Critical patent/JP2009110616A5/ja
Application granted granted Critical
Publication of JP5064171B2 publication Critical patent/JP5064171B2/ja
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C15/00—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores
    • G11C15/04—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores using semiconductor elements
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/903—Querying
    • G06F16/90335—Query processing
    • G06F16/90339—Query processing by using parallel associative memories or content-addressable memories
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Data Mining & Analysis (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Semiconductor Memories (AREA)
  • Static Random-Access Memory (AREA)
JP2007283462A 2007-10-31 2007-10-31 連想記憶装置 Active JP5064171B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007283462A JP5064171B2 (ja) 2007-10-31 2007-10-31 連想記憶装置
US12/261,598 US8169807B2 (en) 2007-10-31 2008-10-30 Content addressable memory device having match line equalizer circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007283462A JP5064171B2 (ja) 2007-10-31 2007-10-31 連想記憶装置

Publications (3)

Publication Number Publication Date
JP2009110616A JP2009110616A (ja) 2009-05-21
JP2009110616A5 JP2009110616A5 (enExample) 2010-12-02
JP5064171B2 true JP5064171B2 (ja) 2012-10-31

Family

ID=40584378

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007283462A Active JP5064171B2 (ja) 2007-10-31 2007-10-31 連想記憶装置

Country Status (2)

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US (1) US8169807B2 (enExample)
JP (1) JP5064171B2 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140369103A1 (en) * 2013-06-14 2014-12-18 Mediatek Inc. Content addressable memory cells and ternary content addressable memory cells
US9275735B2 (en) * 2014-01-06 2016-03-01 International Business Machines Corporation Array organization and architecture to perform range-match operations with content addressable memory (CAM) circuits
JP2015225682A (ja) 2014-05-27 2015-12-14 ルネサスエレクトロニクス株式会社 半導体集積回路
US9536608B1 (en) 2015-11-17 2017-01-03 International Business Machines Corporation Content addressable memory device
JP6832799B2 (ja) * 2016-09-07 2021-02-24 ルネサスエレクトロニクス株式会社 半導体装置
US9728258B1 (en) * 2016-10-04 2017-08-08 National Tsing Hua University Ternary content addressable memory
US10714181B2 (en) * 2016-11-30 2020-07-14 Taiwan Semiconductor Manufacturing Co., Ltd. Memory cell
US10910056B2 (en) * 2018-02-22 2021-02-02 Renesas Electronics Corporation Semiconductor device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4732596B2 (ja) * 2000-03-03 2011-07-27 川崎マイクロエレクトロニクス株式会社 連想メモリ装置
JP2002358791A (ja) 2001-05-30 2002-12-13 Fujitsu Ltd 連想記憶装置及びプリチャージ方法
JP2003132686A (ja) * 2001-10-19 2003-05-09 Kawasaki Microelectronics Kk 連想メモリ
JP2003242784A (ja) * 2002-02-15 2003-08-29 Kawasaki Microelectronics Kk 連想メモリ装置
US6704216B1 (en) * 2002-08-15 2004-03-09 Integrated Silicon Solution, Inc. Dual match-line, twin-cell, binary-ternary CAM
JP2004192695A (ja) * 2002-12-10 2004-07-08 Kawasaki Microelectronics Kk 連想メモリ装置
JP4149296B2 (ja) 2003-03-26 2008-09-10 株式会社ルネサステクノロジ 半導体記憶装置
JP4861012B2 (ja) * 2005-03-31 2012-01-25 ルネサスエレクトロニクス株式会社 Ｃａｍ装置
JP2007317342A (ja) * 2006-04-25 2007-12-06 Renesas Technology Corp 内容参照メモリ

Also Published As

Publication number Publication date
US8169807B2 (en) 2012-05-01
US20090113122A1 (en) 2009-04-30
JP2009110616A (ja) 2009-05-21

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