JPS5584099A - Memory device - Google Patents
Memory deviceInfo
- Publication number
- JPS5584099A JPS5584099A JP15628078A JP15628078A JPS5584099A JP S5584099 A JPS5584099 A JP S5584099A JP 15628078 A JP15628078 A JP 15628078A JP 15628078 A JP15628078 A JP 15628078A JP S5584099 A JPS5584099 A JP S5584099A
- Authority
- JP
- Japan
- Prior art keywords
- selector
- error detection
- devices
- memory device
- memory devices
- 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
Abstract
PURPOSE: To enhance the reliability and durability of the memory device by selecting one of the duplicated memory devices in the state under which the selection latch of the selector is switched according to the error detection and then connected to the selector.
CONSTITUTION: When the same data after duplication is written into memory devices 11-A and 11-B each, the write data of either one of the two devices is applied to register 13 via selector 12. And when the error of the reading data is detected at error detection part 14 to the writing data, the latching output delivered from selection latch circuit 15 consisting of exclusive OR circuit 16 and FF17 switches with every error detection to give the control to the selection latch of selector 12. Accordingly, the alternative selection is given to devices 11-A and 11-B while being connected to selector 12, and the reading is carried out continuously with no cut-off between these two memory devices via the error detection of once. As a result, both the reliability and the duarability can be enhanced for the memory device.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15628078A JPS5584099A (en) | 1978-12-20 | 1978-12-20 | Memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15628078A JPS5584099A (en) | 1978-12-20 | 1978-12-20 | Memory device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5584099A true JPS5584099A (en) | 1980-06-24 |
Family
ID=15624361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15628078A Pending JPS5584099A (en) | 1978-12-20 | 1978-12-20 | Memory device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5584099A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5883396A (en) * | 1981-11-11 | 1983-05-19 | Toshiba Corp | Data processor |
JPS59177796A (en) * | 1983-03-25 | 1984-10-08 | Fuji Electric Co Ltd | Duplication control system of memory |
JPS60179860A (en) * | 1984-02-27 | 1985-09-13 | Fuji Electric Co Ltd | Switching control system of storage device |
CN105788638A (en) * | 2011-03-04 | 2016-07-20 | 瑞萨电子株式会社 | Semiconductor device |
-
1978
- 1978-12-20 JP JP15628078A patent/JPS5584099A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5883396A (en) * | 1981-11-11 | 1983-05-19 | Toshiba Corp | Data processor |
JPS59177796A (en) * | 1983-03-25 | 1984-10-08 | Fuji Electric Co Ltd | Duplication control system of memory |
JPH0238969B2 (en) * | 1983-03-25 | 1990-09-03 | Fuji Denki Kk | |
JPS60179860A (en) * | 1984-02-27 | 1985-09-13 | Fuji Electric Co Ltd | Switching control system of storage device |
JPH0315213B2 (en) * | 1984-02-27 | 1991-02-28 | Fuji Denki Kk | |
CN105788638A (en) * | 2011-03-04 | 2016-07-20 | 瑞萨电子株式会社 | Semiconductor device |
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