JPS5727491A - Refresh controller - Google Patents

Refresh controller

Info

Publication number
JPS5727491A
JPS5727491A JP10154080A JP10154080A JPS5727491A JP S5727491 A JPS5727491 A JP S5727491A JP 10154080 A JP10154080 A JP 10154080A JP 10154080 A JP10154080 A JP 10154080A JP S5727491 A JPS5727491 A JP S5727491A
Authority
JP
Japan
Prior art keywords
refresh
control circuit
register
memory
storage device
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
JP10154080A
Other languages
Japanese (ja)
Inventor
Chuji Watabe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10154080A priority Critical patent/JPS5727491A/en
Publication of JPS5727491A publication Critical patent/JPS5727491A/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)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE:To make small the shape of batteries and the current capacity, by providing a refersh adress register and control circuit to a storage device and always enabling memory refresh through battery backup of the storage device only. CONSTITUTION:A storage device 13 having a memory 28 of DRAM constitution is refresh address register 22 where row or column address of an address information ADRS is loaded from a processor 11, while the power supply can be applied from the AC power supply application. After the power supply is possible to be applied, the content of the register 22 is counted and renewed based on a refresh request REF 1 from a refresh control circuit 12 at a control circuit 23 and the result is outputted to a memory 28 as the refresh address. During the interruption of supply of AC power, the device 13 is backed up with a battery 16 and the register 22 is counted and renewed with the refresh request signal made at the control circuit 23 and outputted to the memory 28.
JP10154080A 1980-07-24 1980-07-24 Refresh controller Pending JPS5727491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10154080A JPS5727491A (en) 1980-07-24 1980-07-24 Refresh controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10154080A JPS5727491A (en) 1980-07-24 1980-07-24 Refresh controller

Publications (1)

Publication Number Publication Date
JPS5727491A true JPS5727491A (en) 1982-02-13

Family

ID=14303261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10154080A Pending JPS5727491A (en) 1980-07-24 1980-07-24 Refresh controller

Country Status (1)

Country Link
JP (1) JPS5727491A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5640357A (en) * 1994-12-02 1997-06-17 Fujitsu Limited Storage device using dynamic RAM

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5640357A (en) * 1994-12-02 1997-06-17 Fujitsu Limited Storage device using dynamic RAM

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