JPS5698791A - Associative memory - Google Patents

Associative memory

Info

Publication number
JPS5698791A
JPS5698791A JP111680A JP111680A JPS5698791A JP S5698791 A JPS5698791 A JP S5698791A JP 111680 A JP111680 A JP 111680A JP 111680 A JP111680 A JP 111680A JP S5698791 A JPS5698791 A JP S5698791A
Authority
JP
Japan
Prior art keywords
voltage
resistance
information
unreversibly
varies
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP111680A
Other languages
Japanese (ja)
Other versions
JPS6045507B2 (en
Inventor
Masato Wada
Masabumi Tanimoto
Tsuneo Mano
Nobuaki Ieda
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP55001116A priority Critical patent/JPS6045507B2/en
Publication of JPS5698791A publication Critical patent/JPS5698791A/en
Publication of JPS6045507B2 publication Critical patent/JPS6045507B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G11C15/046—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 using non-volatile storage elements

Landscapes

  • Read Only Memory (AREA)
  • For Increasing The Reliability Of Semiconductor Memories (AREA)

Abstract

PURPOSE: To simplify the constitution by collating memory information with input data by using a variable resistance element whose resistance value depending upon an applied voltage, current or the both varies unreversibly and a semiconductor active element such as a field effect transistor.
CONSTITUTION: To write information "0", input data line D0 is held at a high voltage and inverted input data line D0' at a low voltage; and a voltage higher than the threshold value when variable resistance element R11 varies unreversibly from high resistance to low resistance, current or the both are applied to node N0. Variable resistance element R11 varies unreversibly from high resistance to low resistance. To read the information, write/earth voltage line N0 is held at the earth voltage and collation output line M0 is disconnected from the earth. By holding variable resistance R12 at low resistance, information "1" is written in.
COPYRIGHT: (C)1981,JPO&Japio
JP55001116A 1980-01-09 1980-01-09 associative memory Expired JPS6045507B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55001116A JPS6045507B2 (en) 1980-01-09 1980-01-09 associative memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55001116A JPS6045507B2 (en) 1980-01-09 1980-01-09 associative memory

Publications (2)

Publication Number Publication Date
JPS5698791A true JPS5698791A (en) 1981-08-08
JPS6045507B2 JPS6045507B2 (en) 1985-10-09

Family

ID=11492480

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55001116A Expired JPS6045507B2 (en) 1980-01-09 1980-01-09 associative memory

Country Status (1)

Country Link
JP (1) JPS6045507B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2141707A1 (en) * 2008-06-30 2010-01-06 International Business Machines Corporation High density content addressable memory using phase change devices
JP2011048894A (en) * 2009-08-28 2011-03-10 Internatl Business Mach Corp <Ibm> Associative memory array

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0496114U (en) * 1991-01-21 1992-08-20

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2141707A1 (en) * 2008-06-30 2010-01-06 International Business Machines Corporation High density content addressable memory using phase change devices
JP2010015663A (en) * 2008-06-30 2010-01-21 Internatl Business Mach Corp <Ibm> High density content addressable memory using phase change device
US7782646B2 (en) 2008-06-30 2010-08-24 International Business Machines Corporation High density content addressable memory using phase change devices
TWI497493B (en) * 2008-06-30 2015-08-21 Ibm High density content addressable memory using phase change devices
JP2011048894A (en) * 2009-08-28 2011-03-10 Internatl Business Mach Corp <Ibm> Associative memory array

Also Published As

Publication number Publication date
JPS6045507B2 (en) 1985-10-09

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