JPS55146694A - Semiconductor memory device - Google Patents

Semiconductor memory device

Info

Publication number
JPS55146694A
JPS55146694A JP3928680A JP3928680A JPS55146694A JP S55146694 A JPS55146694 A JP S55146694A JP 3928680 A JP3928680 A JP 3928680A JP 3928680 A JP3928680 A JP 3928680A JP S55146694 A JPS55146694 A JP S55146694A
Authority
JP
Japan
Prior art keywords
refreshing
read
digit line
row
word line
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
JP3928680A
Other languages
Japanese (ja)
Inventor
Junichi Mogi
Kiyoshi Miyasaka
Fumio Baba
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
Original Assignee
Fujitsu 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 filed Critical Fujitsu Ltd
Priority to JP3928680A priority Critical patent/JPS55146694A/en
Publication of JPS55146694A publication Critical patent/JPS55146694A/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)

Abstract

PURPOSE:To eliminate the need to increase electric power capacity for refreshing even when the scale is made larger by providing a sequence control circuit and by refreshing separately with memory cells connecting with a word line several times. CONSTITUTION:Row decoder 2 selects read word line R/W1 and also selects all column-directional read digit lines R/D to transfer information, stored in memory cell MC1, to read digit line R/D1. Then, sequence circuit 4 is put into operation to supply only refreshing circuit 31 with an operating signal and then the information read out to digit line R/D1 is tranferred to digit line W/D1 by selecting write word line W/W1 and digit line W/D1 and then written again in cell MC1. Similarly, memory cell MC2 is refreshed and the refreshing operation is carried on in the row direction sequentially; after the refreshing operation for one row ends, the next row is refreshed, thereby refreshing all memory cells.
JP3928680A 1980-03-27 1980-03-27 Semiconductor memory device Pending JPS55146694A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3928680A JPS55146694A (en) 1980-03-27 1980-03-27 Semiconductor memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3928680A JPS55146694A (en) 1980-03-27 1980-03-27 Semiconductor memory device

Publications (1)

Publication Number Publication Date
JPS55146694A true JPS55146694A (en) 1980-11-15

Family

ID=12548906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3928680A Pending JPS55146694A (en) 1980-03-27 1980-03-27 Semiconductor memory device

Country Status (1)

Country Link
JP (1) JPS55146694A (en)

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