JPS6484492A - Semiconductor memory - Google Patents
Semiconductor memoryInfo
- Publication number
- JPS6484492A JPS6484492A JP62241054A JP24105487A JPS6484492A JP S6484492 A JPS6484492 A JP S6484492A JP 62241054 A JP62241054 A JP 62241054A JP 24105487 A JP24105487 A JP 24105487A JP S6484492 A JPS6484492 A JP S6484492A
- Authority
- JP
- Japan
- Prior art keywords
- block
- dram
- information
- cache hit
- entry
- 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
- Static Random-Access Memory (AREA)
- Dram (AREA)
Abstract
PURPOSE:To improve a cache hit ratio thanks to the entry of information at every block by fetching the information of respective blocks in a sense amplifier set beforehand into plural data registers. CONSTITUTION:A comparator 24 compares an inputted row address with the row address stored in a latch 22b, when they are identical, it regards them as a cache hit, and sends a signal CH at an 'H' level to DRAM 11-18 and to a state machine 25. At such a time, a block decoder 34 receives a column address CA of the DRAM 11-18, and selects a block B2. On the other hand, the state machine 25 to have received the signal CH takes off the data of a data register 32b of the DRAM 11-18 through an address multiplexer 21 by way of an I/O switch 9. Thus, by performing the entry of the information in units of a block, the cache hit ratio can be improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62241054A JPS6484492A (en) | 1987-09-26 | 1987-09-26 | Semiconductor memory |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62241054A JPS6484492A (en) | 1987-09-26 | 1987-09-26 | Semiconductor memory |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8122019A Division JPH08297968A (en) | 1996-05-16 | 1996-05-16 | Semiconductor memory |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6484492A true JPS6484492A (en) | 1989-03-29 |
Family
ID=17068623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62241054A Pending JPS6484492A (en) | 1987-09-26 | 1987-09-26 | Semiconductor memory |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6484492A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0212687A (en) * | 1988-03-31 | 1990-01-17 | Texas Instr Inc <Ti> | Processing sysem using multi-line cache dram |
JPH02121191A (en) * | 1988-10-29 | 1990-05-09 | Nec Corp | Semiconductor memory device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6238590A (en) * | 1985-08-13 | 1987-02-19 | Fujitsu Ltd | Semiconductor memory device |
JPS62146490A (en) * | 1985-12-20 | 1987-06-30 | Sanyo Electric Co Ltd | Semiconductor memory |
-
1987
- 1987-09-26 JP JP62241054A patent/JPS6484492A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6238590A (en) * | 1985-08-13 | 1987-02-19 | Fujitsu Ltd | Semiconductor memory device |
JPS62146490A (en) * | 1985-12-20 | 1987-06-30 | Sanyo Electric Co Ltd | Semiconductor memory |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0212687A (en) * | 1988-03-31 | 1990-01-17 | Texas Instr Inc <Ti> | Processing sysem using multi-line cache dram |
JPH02121191A (en) * | 1988-10-29 | 1990-05-09 | Nec Corp | Semiconductor memory device |
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