JPS57200995A - Refresh system of non-volatile memory - Google Patents

Refresh system of non-volatile memory

Info

Publication number
JPS57200995A
JPS57200995A JP8642881A JP8642881A JPS57200995A JP S57200995 A JPS57200995 A JP S57200995A JP 8642881 A JP8642881 A JP 8642881A JP 8642881 A JP8642881 A JP 8642881A JP S57200995 A JPS57200995 A JP S57200995A
Authority
JP
Japan
Prior art keywords
memories
registers
mode
addresses
written
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
JP8642881A
Other languages
Japanese (ja)
Other versions
JPS6037557B2 (en
Inventor
Masaaki Fujita
Kazumi Kawashima
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56086428A priority Critical patent/JPS6037557B2/en
Publication of JPS57200995A publication Critical patent/JPS57200995A/en
Publication of JPS6037557B2 publication Critical patent/JPS6037557B2/en
Expired 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)
  • Read Only Memory (AREA)

Abstract

PURPOSE:To execute refreshment in a short time, by controlling plural memories so that the processes requiring a comparatively long time are executed simultaneously. CONSTITUTION:On memory circuits 1, 1', NMOS memories 3, 3' are provided. Its addresses to be read out or to be written are designated by address registers 5, 5' through address drivers 4, 4', and also data contents of said addresses are read out by data registers 7, 7' or are written from the data registers 7, 7', through input/output circuit 6, 6'. Those operation modes are switched in accordance with a mode signal from a controlling circuit 2, by both mode decoders 8, 8' and mode registers 9, 9'. In case of refreshing the memories 3, 3', the memories 3, 3' are controlled so that the processes requiring a comparatively long time are executed simultaneously.
JP56086428A 1981-06-04 1981-06-04 Non-volatile memory refresh method Expired JPS6037557B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56086428A JPS6037557B2 (en) 1981-06-04 1981-06-04 Non-volatile memory refresh method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56086428A JPS6037557B2 (en) 1981-06-04 1981-06-04 Non-volatile memory refresh method

Publications (2)

Publication Number Publication Date
JPS57200995A true JPS57200995A (en) 1982-12-09
JPS6037557B2 JPS6037557B2 (en) 1985-08-27

Family

ID=13886625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56086428A Expired JPS6037557B2 (en) 1981-06-04 1981-06-04 Non-volatile memory refresh method

Country Status (1)

Country Link
JP (1) JPS6037557B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6489099A (en) * 1987-09-30 1989-04-03 Toshiba Corp Restorage device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6489099A (en) * 1987-09-30 1989-04-03 Toshiba Corp Restorage device

Also Published As

Publication number Publication date
JPS6037557B2 (en) 1985-08-27

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