JPS55117790A - Memory circuit - Google Patents

Memory circuit

Info

Publication number
JPS55117790A
JPS55117790A JP2348079A JP2348079A JPS55117790A JP S55117790 A JPS55117790 A JP S55117790A JP 2348079 A JP2348079 A JP 2348079A JP 2348079 A JP2348079 A JP 2348079A JP S55117790 A JPS55117790 A JP S55117790A
Authority
JP
Japan
Prior art keywords
current
circuit
write
read
turns
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
JP2348079A
Other languages
Japanese (ja)
Other versions
JPS6129067B2 (en
Inventor
Teruo Isobe
Kuniyasu Kawarada
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.)
Hitachi Ltd
NTT Inc
Original Assignee
Hitachi Ltd
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 Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Hitachi Ltd
Priority to JP2348079A priority Critical patent/JPS55117790A/en
Publication of JPS55117790A publication Critical patent/JPS55117790A/en
Publication of JPS6129067B2 publication Critical patent/JPS6129067B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
    • G11C11/41—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming static cells with positive feedback, i.e. cells not needing refreshing or charge regeneration, e.g. bistable multivibrator or Schmitt trigger
    • G11C11/413—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing, timing or power reduction
    • G11C11/414—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing, timing or power reduction for memory cells of the bipolar type
    • G11C11/416—Read-write [R-W] circuits 

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Static Random-Access Memory (AREA)

Abstract

PURPOSE:To increase read and write speeds by using a current through a current switching transistor when write operation is not done as a holding current for cells. CONSTITUTION:This memory circuit is provided with memory cells MS11-MS22 including a couple of transistors with bases and collectors cross-connected, read circuit 4, transistor Q45 applied with a bias voltage at its base, Q16 and Q17 supplied with a complementary signal corresponding to input signal IN, current source IWS, and write circuit 5 including a driver circuit which turns ON Q15 in read operation and also turns ON Q16 or Q17 in write operation. Then, each cell MS increases in holding current by the collector current of Q15.
JP2348079A 1979-03-02 1979-03-02 Memory circuit Granted JPS55117790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2348079A JPS55117790A (en) 1979-03-02 1979-03-02 Memory circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2348079A JPS55117790A (en) 1979-03-02 1979-03-02 Memory circuit

Publications (2)

Publication Number Publication Date
JPS55117790A true JPS55117790A (en) 1980-09-10
JPS6129067B2 JPS6129067B2 (en) 1986-07-04

Family

ID=12111683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2348079A Granted JPS55117790A (en) 1979-03-02 1979-03-02 Memory circuit

Country Status (1)

Country Link
JP (1) JPS55117790A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62291474A (en) * 1986-06-11 1987-12-18 Mitsubishi Electric Corp Internal combustion engine stop device

Also Published As

Publication number Publication date
JPS6129067B2 (en) 1986-07-04

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