JPS60236193A - Memory cell circuit - Google Patents

Memory cell circuit

Info

Publication number
JPS60236193A
JPS60236193A JP9227284A JP9227284A JPS60236193A JP S60236193 A JPS60236193 A JP S60236193A JP 9227284 A JP9227284 A JP 9227284A JP 9227284 A JP9227284 A JP 9227284A JP S60236193 A JPS60236193 A JP S60236193A
Authority
JP
Japan
Prior art keywords
line
potential
transistors
memory cell
ground
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
JP9227284A
Inventor
Hiroshi Kadota
Yoshihito Nishimichi
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Priority to JP9227284A priority Critical patent/JPS60236193A/en
Publication of JPS60236193A publication Critical patent/JPS60236193A/en
Application status is Pending legal-status Critical

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C15/00Digital 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
    • G11C15/04Digital 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

Abstract

PURPOSE:To obtain an associative memory cell which has less number of constituting transistors and acts at a high speed by providing a sensor line where the connection to the ground in the same direction as that of a word line is controlled by serial transistors acting in correspondence to a bit line potential and storage contents of a memory cell. CONSTITUTION:A sensor line (d) is provided whose potential is set to a high level in the same direction as that of a word line (c) of an associative memory cell Mo formed by inverters I1 and I2 having two sets of nodes X is and Y, etc. Between said line (d) and a ground transisitors Q3 and Q5 controlled in accordance with potential of bit lines (a) and (b), and transistors Q4 and Q6, which are connected to said transistors Q3 and Q5 in serial and controlled by potentials of the nodes X and Y, are provided. When a refrerence potential is different from a momory potential produced by the lines (a) and (b), the line (d) is connected to the ground. Consequently, if the line (d) is set to a high potential level, cells are not sequentially detected by any one of cell forming words at the time of the dissident detection, but the line (d) goes to a grounding potential instantaneously. Thus an associative memory which has less number of constituting transistors and acts at a high speed can be obtained.
JP9227284A 1984-05-08 1984-05-08 Memory cell circuit Pending JPS60236193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9227284A JPS60236193A (en) 1984-05-08 1984-05-08 Memory cell circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9227284A JPS60236193A (en) 1984-05-08 1984-05-08 Memory cell circuit

Publications (1)

Publication Number Publication Date
JPS60236193A true JPS60236193A (en) 1985-11-22

Family

ID=14049758

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9227284A Pending JPS60236193A (en) 1984-05-08 1984-05-08 Memory cell circuit

Country Status (1)

Country Link
JP (1) JPS60236193A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63281299A (en) * 1987-05-13 1988-11-17 Hitachi Ltd Associative memory device
US5305262A (en) * 1991-09-11 1994-04-19 Kawasaki Steel Corporation Semiconductor integrated circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53136447A (en) * 1977-05-02 1978-11-29 Nippon Telegr & Teleph Corp <Ntt> Associative memory

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53136447A (en) * 1977-05-02 1978-11-29 Nippon Telegr & Teleph Corp <Ntt> Associative memory

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63281299A (en) * 1987-05-13 1988-11-17 Hitachi Ltd Associative memory device
US5305262A (en) * 1991-09-11 1994-04-19 Kawasaki Steel Corporation Semiconductor integrated circuit

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