JPS5248441A - Memory system - Google Patents
Memory systemInfo
- Publication number
- JPS5248441A JPS5248441A JP50063713A JP6371375A JPS5248441A JP S5248441 A JPS5248441 A JP S5248441A JP 50063713 A JP50063713 A JP 50063713A JP 6371375 A JP6371375 A JP 6371375A JP S5248441 A JPS5248441 A JP S5248441A
- Authority
- JP
- Japan
- Prior art keywords
- memory system
- request
- refresh
- given
- processor
- 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
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50063713A JPS5248441A (en) | 1975-05-28 | 1975-05-28 | Memory system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50063713A JPS5248441A (en) | 1975-05-28 | 1975-05-28 | Memory system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5248441A true JPS5248441A (en) | 1977-04-18 |
Family
ID=13237287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50063713A Pending JPS5248441A (en) | 1975-05-28 | 1975-05-28 | Memory system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5248441A (ja) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50131704A (ja) * | 1974-03-29 | 1975-10-18 | ||
JPS50147205A (ja) * | 1974-05-15 | 1975-11-26 | ||
JPS53136924A (en) * | 1977-05-06 | 1978-11-29 | Fujitsu Ltd | Control system for memory device |
JPS5447444A (en) * | 1977-09-21 | 1979-04-14 | Hitachi Ltd | Memory unit |
JPS5489442A (en) * | 1977-12-27 | 1979-07-16 | Nec Corp | Semiconductor memory device |
JPS5792990A (en) * | 1980-12-01 | 1982-06-09 | Nippon Telegr & Teleph Corp <Ntt> | Electronic key telephone device |
JPS6061994A (ja) * | 1983-09-14 | 1985-04-09 | Toshiba Corp | ダイナミック型メモリの制御回路 |
US4536615A (en) * | 1982-06-05 | 1985-08-20 | Nitsuko Limited | Key telephone equipment and associated method |
JPH03102695A (ja) * | 1988-11-07 | 1991-04-30 | Hitachi Ltd | 半導体装置 |
US6049500A (en) * | 1988-11-01 | 2000-04-11 | Hitachi, Ltd. | Semiconductor memory device and defect remedying method thereof |
US6212089B1 (en) | 1996-03-19 | 2001-04-03 | Hitachi, Ltd. | Semiconductor memory device and defect remedying method thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4848044A (ja) * | 1971-10-20 | 1973-07-07 | ||
JPS4878839A (ja) * | 1971-12-29 | 1973-10-23 | ||
JPS49132943A (ja) * | 1973-04-25 | 1974-12-20 | ||
JPS5042754A (ja) * | 1973-08-20 | 1975-04-18 |
-
1975
- 1975-05-28 JP JP50063713A patent/JPS5248441A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4848044A (ja) * | 1971-10-20 | 1973-07-07 | ||
JPS4878839A (ja) * | 1971-12-29 | 1973-10-23 | ||
JPS49132943A (ja) * | 1973-04-25 | 1974-12-20 | ||
JPS5042754A (ja) * | 1973-08-20 | 1975-04-18 |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS584878B2 (ja) * | 1974-03-29 | 1983-01-28 | ウエスタ−ン エレクトリツク カムパニ− インコ−ポレ−テツド | ボタン電話システムにおける制御回路 |
JPS50131704A (ja) * | 1974-03-29 | 1975-10-18 | ||
JPS50147205A (ja) * | 1974-05-15 | 1975-11-26 | ||
JPS5410401B2 (ja) * | 1974-05-15 | 1979-05-07 | ||
JPS53136924A (en) * | 1977-05-06 | 1978-11-29 | Fujitsu Ltd | Control system for memory device |
JPS5447444A (en) * | 1977-09-21 | 1979-04-14 | Hitachi Ltd | Memory unit |
JPS5489442A (en) * | 1977-12-27 | 1979-07-16 | Nec Corp | Semiconductor memory device |
JPH0136310B2 (ja) * | 1980-12-01 | 1989-07-31 | Nippon Telegraph & Telephone | |
JPS5792990A (en) * | 1980-12-01 | 1982-06-09 | Nippon Telegr & Teleph Corp <Ntt> | Electronic key telephone device |
US4536615A (en) * | 1982-06-05 | 1985-08-20 | Nitsuko Limited | Key telephone equipment and associated method |
JPS6061994A (ja) * | 1983-09-14 | 1985-04-09 | Toshiba Corp | ダイナミック型メモリの制御回路 |
US7203101B2 (en) | 1988-11-01 | 2007-04-10 | Hitachi, Ltd. | Semiconductor memory device and defect remedying method thereof |
US6049500A (en) * | 1988-11-01 | 2000-04-11 | Hitachi, Ltd. | Semiconductor memory device and defect remedying method thereof |
US6160744A (en) * | 1988-11-01 | 2000-12-12 | Hitachi, Ltd. | Semiconductor memory device and defect remedying method thereof |
US7499340B2 (en) | 1988-11-01 | 2009-03-03 | Hitachi, Ltd. | Semiconductor memory device and defect remedying method thereof |
US6335884B1 (en) | 1988-11-01 | 2002-01-01 | Hitachi, Ltd. | Semiconductor memory device and defect remedying method thereof |
US6515913B2 (en) | 1988-11-01 | 2003-02-04 | Hitachi, Ltd. | Semiconductor memory device and defect remedying method thereof |
US6657901B2 (en) | 1988-11-01 | 2003-12-02 | Hitachi, Ltd. | Semiconductor device formed in a rectangle region on a semiconductor substrate including a voltage generating circuit |
US7016236B2 (en) | 1988-11-01 | 2006-03-21 | Hitachi, Ltd. | Semiconductor memory device and defect remedying method thereof |
JPH03102695A (ja) * | 1988-11-07 | 1991-04-30 | Hitachi Ltd | 半導体装置 |
US6212089B1 (en) | 1996-03-19 | 2001-04-03 | Hitachi, Ltd. | Semiconductor memory device and defect remedying method thereof |
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