JPS5283038A - Memory unit refresh control system - Google Patents

Memory unit refresh control system

Info

Publication number
JPS5283038A
JPS5283038A JP15902975A JP15902975A JPS5283038A JP S5283038 A JPS5283038 A JP S5283038A JP 15902975 A JP15902975 A JP 15902975A JP 15902975 A JP15902975 A JP 15902975A JP S5283038 A JPS5283038 A JP S5283038A
Authority
JP
Japan
Prior art keywords
memory unit
control system
refresh control
unit refresh
halt
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
JP15902975A
Other languages
Japanese (ja)
Inventor
Tetsuo Urushibara
Hiroshi Sagawa
Shoji Kajizuka
Shigemitsu Hatakeyama
Takeshi Ito
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.)
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon Electric 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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP15902975A priority Critical patent/JPS5283038A/en
Publication of JPS5283038A publication Critical patent/JPS5283038A/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

Abstract

PURPOSE:To prevent the destruction and volatile condition of the content of memory unit, even with temporary halt of the refresh signal due to clock halt, by using two refresh start signals having long and short period respectively.
JP15902975A 1975-12-29 1975-12-29 Memory unit refresh control system Pending JPS5283038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15902975A JPS5283038A (en) 1975-12-29 1975-12-29 Memory unit refresh control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15902975A JPS5283038A (en) 1975-12-29 1975-12-29 Memory unit refresh control system

Publications (1)

Publication Number Publication Date
JPS5283038A true JPS5283038A (en) 1977-07-11

Family

ID=15684689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15902975A Pending JPS5283038A (en) 1975-12-29 1975-12-29 Memory unit refresh control system

Country Status (1)

Country Link
JP (1) JPS5283038A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456973A1 (en) * 1979-02-16 1980-12-12 Honeywell Inf Systems DIAGNOSTIC SYSTEM FOR A MICROPROGRAMMED TREATMENT UNIT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456973A1 (en) * 1979-02-16 1980-12-12 Honeywell Inf Systems DIAGNOSTIC SYSTEM FOR A MICROPROGRAMMED TREATMENT UNIT

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