JPS57127991A - Refresh controlling system - Google Patents

Refresh controlling system

Info

Publication number
JPS57127991A
JPS57127991A JP56010454A JP1045481A JPS57127991A JP S57127991 A JPS57127991 A JP S57127991A JP 56010454 A JP56010454 A JP 56010454A JP 1045481 A JP1045481 A JP 1045481A JP S57127991 A JPS57127991 A JP S57127991A
Authority
JP
Japan
Prior art keywords
refresh operation
refresh
storage device
start signal
starters
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
JP56010454A
Other languages
Japanese (ja)
Other versions
JPH0157437B2 (en
Inventor
Tadashi Kawanobe
Ryoji Miwa
Makoto Ebihara
Yoshio Sakurai
Yutaka Amano
Saburo Inoue
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 JP56010454A priority Critical patent/JPS57127991A/en
Publication of JPS57127991A publication Critical patent/JPS57127991A/en
Publication of JPH0157437B2 publication Critical patent/JPH0157437B2/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
    • G11C11/401—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)

Abstract

PURPOSE:To prevent all information stored in a storage device from being destroyed with a failure of a single section, by starting refresh operation at the same time from a plurality of refresh operation starting devices. CONSTITUTION:To a storage device 31 requiring refresh operation each specified period, refresh operation is instructed from a plurality of refresh starters 11, 12 at the same time. A storage device 31 receiving the instruction of this operation checks if a respective refresh start signal receivaing the said plurality of refresh operation starters 11, 12 satisfies the specified period or not. Through the logical sum of a start signal in which the result of check is normal, the refresh operation in the storage device 31 is started. For example, a refresh operation start signal reception control section 51 consisting of refresh operation start signal monitor circuits 81, 82, logical product gates 91, 92 and logical sum gate 93, is provided for the said control.
JP56010454A 1981-01-27 1981-01-27 Refresh controlling system Granted JPS57127991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56010454A JPS57127991A (en) 1981-01-27 1981-01-27 Refresh controlling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56010454A JPS57127991A (en) 1981-01-27 1981-01-27 Refresh controlling system

Publications (2)

Publication Number Publication Date
JPS57127991A true JPS57127991A (en) 1982-08-09
JPH0157437B2 JPH0157437B2 (en) 1989-12-05

Family

ID=11750583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56010454A Granted JPS57127991A (en) 1981-01-27 1981-01-27 Refresh controlling system

Country Status (1)

Country Link
JP (1) JPS57127991A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8096790B2 (en) 2007-11-19 2012-01-17 Yamada Manufacturing Co., Ltd. Oil pump resonator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51149730A (en) * 1975-06-13 1976-12-22 Hitachi Ltd Refreshing system for ic memory
JPS5597899U (en) * 1980-01-17 1980-07-08
JPS55160391A (en) * 1979-06-01 1980-12-13 Hitachi Ltd Abnormal load current prevention system of memory unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51149730A (en) * 1975-06-13 1976-12-22 Hitachi Ltd Refreshing system for ic memory
JPS55160391A (en) * 1979-06-01 1980-12-13 Hitachi Ltd Abnormal load current prevention system of memory unit
JPS5597899U (en) * 1980-01-17 1980-07-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8096790B2 (en) 2007-11-19 2012-01-17 Yamada Manufacturing Co., Ltd. Oil pump resonator

Also Published As

Publication number Publication date
JPH0157437B2 (en) 1989-12-05

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