JPS5674889A - Random access memory - Google Patents

Random access memory

Info

Publication number
JPS5674889A
JPS5674889A JP15125279A JP15125279A JPS5674889A JP S5674889 A JPS5674889 A JP S5674889A JP 15125279 A JP15125279 A JP 15125279A JP 15125279 A JP15125279 A JP 15125279A JP S5674889 A JPS5674889 A JP S5674889A
Authority
JP
Japan
Prior art keywords
circuit
random access
access memory
standby
pressure reduction
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
JP15125279A
Other languages
Japanese (ja)
Inventor
Tatsuji Asakawa
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP15125279A priority Critical patent/JPS5674889A/en
Publication of JPS5674889A publication Critical patent/JPS5674889A/en
Pending 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

Landscapes

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

Abstract

PURPOSE:To decrease power consumption at the time of standby by supplying reduced power voltage to a part of RAM. CONSTITUTION:The random access memory equips static type memory cell circuit 31, in which plural cells are arrayed in matrix, address input circuits 32 and 33 which specify the addresses of memory cells, decoder circuits 34 and 35, decoder input circuit 36 which conducts I/O of data to/from memory cells, data output circuit 37, data output control circuit 38, and pressure reduction circuit 39. When power down input PD is high at standby, pressure reduction circuit 39 initiated and reduced voltage is supplied to circuit 31.
JP15125279A 1979-11-20 1979-11-20 Random access memory Pending JPS5674889A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15125279A JPS5674889A (en) 1979-11-20 1979-11-20 Random access memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15125279A JPS5674889A (en) 1979-11-20 1979-11-20 Random access memory

Publications (1)

Publication Number Publication Date
JPS5674889A true JPS5674889A (en) 1981-06-20

Family

ID=15514590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15125279A Pending JPS5674889A (en) 1979-11-20 1979-11-20 Random access memory

Country Status (1)

Country Link
JP (1) JPS5674889A (en)

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