JPS5634197A - Memory unit - Google Patents
Memory unitInfo
- Publication number
- JPS5634197A JPS5634197A JP10879679A JP10879679A JPS5634197A JP S5634197 A JPS5634197 A JP S5634197A JP 10879679 A JP10879679 A JP 10879679A JP 10879679 A JP10879679 A JP 10879679A JP S5634197 A JPS5634197 A JP S5634197A
- Authority
- JP
- Japan
- Prior art keywords
- block
- memory
- address
- unit
- sets
- 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
Links
Landscapes
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
PURPOSE: To reduce the unit of change-over than the memory unit, without causing section loss, by sectioning the memory unit into a plurality of blocks and performing accessing to normal block at the change-over circuit corresponding to each block.
CONSTITUTION: The memory unit 1 consists of n sets of memory units 2, and each unit 2 consists of the memory section 4, 2X×2Y sets of change-over circuits 3, and conversion circuit 28. The memory section 4 is logically sectioned into 2X×2Y sets of memory blocks designated with the block address 29. The circuit 3 corresponds to each block by one to one, and the flag 11 displays the deficiency of block. The memory section 4 selects and drives the cell with X block address 25, Y block address 26, address 30 in X block from the address information 22 accessed, and address 31 in Y block, and the data signal 9 is received and transmitted on the bus 10.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54108796A JPS5935120B2 (en) | 1979-08-27 | 1979-08-27 | memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54108796A JPS5935120B2 (en) | 1979-08-27 | 1979-08-27 | memory device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5634197A true JPS5634197A (en) | 1981-04-06 |
JPS5935120B2 JPS5935120B2 (en) | 1984-08-27 |
Family
ID=14493696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54108796A Expired JPS5935120B2 (en) | 1979-08-27 | 1979-08-27 | memory device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5935120B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH018424Y2 (en) * | 1984-09-06 | 1989-03-07 | ||
JPS6336420Y2 (en) * | 1984-09-06 | 1988-09-27 | ||
JPS61262254A (en) * | 1985-05-11 | 1986-11-20 | Toyota Motor Corp | Power distributing apparatus for car |
-
1979
- 1979-08-27 JP JP54108796A patent/JPS5935120B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5935120B2 (en) | 1984-08-27 |
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