JPS53124934A - Semiconductor memory unit - Google Patents

Semiconductor memory unit

Info

Publication number
JPS53124934A
JPS53124934A JP3934877A JP3934877A JPS53124934A JP S53124934 A JPS53124934 A JP S53124934A JP 3934877 A JP3934877 A JP 3934877A JP 3934877 A JP3934877 A JP 3934877A JP S53124934 A JPS53124934 A JP S53124934A
Authority
JP
Japan
Prior art keywords
semiconductor memory
memory unit
refresh
compulsively
resetting
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
JP3934877A
Other languages
Japanese (ja)
Inventor
Takayoshi Ishii
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
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3934877A priority Critical patent/JPS53124934A/en
Publication of JPS53124934A publication Critical patent/JPS53124934A/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
    • G11C11/401—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 cells needing refreshing or charge regeneration, i.e. dynamic cells
    • G11C11/406—Management or control of the refreshing or charge-regeneration cycles

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • For Increasing The Reliability Of Semiconductor Memories (AREA)

Abstract

PURPOSE:To prevent hanging up, by enabling the reception of the next operation request, through resetting the FF generating the refresh selection signal compulsively, if the condition that the refresh operation is not released more than a given time continues.
JP3934877A 1977-04-06 1977-04-06 Semiconductor memory unit Pending JPS53124934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3934877A JPS53124934A (en) 1977-04-06 1977-04-06 Semiconductor memory unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3934877A JPS53124934A (en) 1977-04-06 1977-04-06 Semiconductor memory unit

Publications (1)

Publication Number Publication Date
JPS53124934A true JPS53124934A (en) 1978-10-31

Family

ID=12550563

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3934877A Pending JPS53124934A (en) 1977-04-06 1977-04-06 Semiconductor memory unit

Country Status (1)

Country Link
JP (1) JPS53124934A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546737A (en) * 1977-06-17 1979-01-19 Nec Corp Refresh unit of memory device
JPS6212995A (en) * 1985-07-09 1987-01-21 Panafacom Ltd Refresh control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546737A (en) * 1977-06-17 1979-01-19 Nec Corp Refresh unit of memory device
JPS5758758B2 (en) * 1977-06-17 1982-12-10 Nippon Denki Kk
JPS6212995A (en) * 1985-07-09 1987-01-21 Panafacom Ltd Refresh control system

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