JPS5698797A - Memory device - Google Patents
Memory deviceInfo
- Publication number
- JPS5698797A JPS5698797A JP17231479A JP17231479A JPS5698797A JP S5698797 A JPS5698797 A JP S5698797A JP 17231479 A JP17231479 A JP 17231479A JP 17231479 A JP17231479 A JP 17231479A JP S5698797 A JPS5698797 A JP S5698797A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- stand
- memory element
- normal
- memory elements
- 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
Links
Landscapes
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
PURPOSE: To decrease the number of stand-by memories, by substituting a normal memory, having memory elements arranged in an m-by-n matrix, by one stand-by memory element.
CONSTITUTION: The normal memory consists of memory elements M11WMnm arrayed in an m-by-n matrix and is provided one stand-by memory element Ma, which can substitute for any of memory elements M11WMnm of the siad normal memory. If memory element M13 gets out of order, change-over control signal B3 among change-over control signals B1WBm is activated and corresponding write data DI3 is selected and inputted to stand-by memory element Ma; and then chip selection signal CS1 is supplied to control circuit 4, from which signal CSa is outputted and applied to stand-by memory element Ma. As a result, stand-by memory element Ma operates simultaneously with memory elements M11WM1m.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17231479A JPS5698797A (en) | 1979-12-29 | 1979-12-29 | Memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17231479A JPS5698797A (en) | 1979-12-29 | 1979-12-29 | Memory device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5698797A true JPS5698797A (en) | 1981-08-08 |
Family
ID=15939611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17231479A Pending JPS5698797A (en) | 1979-12-29 | 1979-12-29 | Memory device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5698797A (en) |
-
1979
- 1979-12-29 JP JP17231479A patent/JPS5698797A/en active Pending
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