JPS573291A - Associative memory circuit - Google Patents

Associative memory circuit

Info

Publication number
JPS573291A
JPS573291A JP7737380A JP7737380A JPS573291A JP S573291 A JPS573291 A JP S573291A JP 7737380 A JP7737380 A JP 7737380A JP 7737380 A JP7737380 A JP 7737380A JP S573291 A JPS573291 A JP S573291A
Authority
JP
Japan
Prior art keywords
potentials
information
data
memory circuit
appear
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.)
Pending
Application number
JP7737380A
Other languages
Japanese (ja)
Inventor
Takeshi Ogura
Tadanobu Nikaido
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 JP7737380A priority Critical patent/JPS573291A/en
Publication of JPS573291A publication Critical patent/JPS573291A/en
Pending 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
    • G11C15/043—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 capacitive charge storage elements
    • 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

Landscapes

  • Static Random-Access Memory (AREA)

Abstract

PURPOSE:To obtain an associative memory circuit which performs writing and reading operations simultaneously with less constituent elements, by controlling three switching transistors (TR), connected together as prescribed, by stored information and its complementary information. CONSTITUTION:When either one of bit lines 2 and 3 is held at a high potential according to written data and the other at a low potential, data is written in a memory circuit 1 and potentials M and M' coinciding with stored data and its complementary data appear at terminals 5 and 6. Those potentials M and M' control switching MIS TRs 7 and 8 connected to common lines 10 and 11 at the same potentials with pieces of retrieval information S and S' and also holds a common line 12 at a low potential to turn off a switching MIS TR9 grounded via a common line 14. Then, anti information on the sum of potentials M and S appear at a common terminal 14 between the TRs 7 and 8, performing associative operation. In reading and writing data, the potentials of the stored information and its complementary information appear via independent lines 10 and 11 to perform writing and reading operations with less constituent elements.
JP7737380A 1980-06-09 1980-06-09 Associative memory circuit Pending JPS573291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7737380A JPS573291A (en) 1980-06-09 1980-06-09 Associative memory circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7737380A JPS573291A (en) 1980-06-09 1980-06-09 Associative memory circuit

Publications (1)

Publication Number Publication Date
JPS573291A true JPS573291A (en) 1982-01-08

Family

ID=13632090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7737380A Pending JPS573291A (en) 1980-06-09 1980-06-09 Associative memory circuit

Country Status (1)

Country Link
JP (1) JPS573291A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62267998A (en) * 1986-05-16 1987-11-20 Nec Corp Associative memory cell circuit
JPH01311809A (en) * 1988-06-07 1989-12-15 Hitachi Cable Ltd Power wiring system in building
WO2010050283A1 (en) * 2008-10-31 2010-05-06 インターナショナル・ビジネス・マシーンズ・コーポレーション Memory cells and associative storage device using same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62267998A (en) * 1986-05-16 1987-11-20 Nec Corp Associative memory cell circuit
JPH01311809A (en) * 1988-06-07 1989-12-15 Hitachi Cable Ltd Power wiring system in building
WO2010050283A1 (en) * 2008-10-31 2010-05-06 インターナショナル・ビジネス・マシーンズ・コーポレーション Memory cells and associative storage device using same

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