DE3176752D1 - Read-only/read-write memory - Google Patents
Read-only/read-write memoryInfo
- Publication number
- DE3176752D1 DE3176752D1 DE8181304889T DE3176752T DE3176752D1 DE 3176752 D1 DE3176752 D1 DE 3176752D1 DE 8181304889 T DE8181304889 T DE 8181304889T DE 3176752 T DE3176752 T DE 3176752T DE 3176752 D1 DE3176752 D1 DE 3176752D1
- Authority
- DE
- Germany
- Prior art keywords
- read
- write memory
- write
- memory
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/20—Memory cell initialisation circuits, e.g. when powering up or down, memory clear, latent image memory
-
- 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
- G11C11/005—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor comprising combined but independently operative RAM-ROM, RAM-PROM, RAM-EPROM cells
-
- 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
- G11C11/403—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 with charge regeneration common to a multiplicity of memory cells, i.e. external refresh
- G11C11/404—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 with charge regeneration common to a multiplicity of memory cells, i.e. external refresh with one charge-transfer gate, e.g. MOS transistor, per cell
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
- G11C17/08—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements
- G11C17/10—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM
- G11C17/12—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM using field-effect devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Dram (AREA)
- Static Random-Access Memory (AREA)
- Read Only Memory (AREA)
- Semiconductor Memories (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/233,066 US4380803A (en) | 1981-02-10 | 1981-02-10 | Read-only/read-write memory |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3176752D1 true DE3176752D1 (en) | 1988-06-23 |
Family
ID=22875748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8181304889T Expired DE3176752D1 (en) | 1981-02-10 | 1981-10-20 | Read-only/read-write memory |
Country Status (6)
Country | Link |
---|---|
US (1) | US4380803A (de) |
EP (1) | EP0057784B1 (de) |
JP (1) | JPS57143789A (de) |
BR (1) | BR8107810A (de) |
CA (1) | CA1181847A (de) |
DE (1) | DE3176752D1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3202028A1 (de) * | 1982-01-22 | 1983-07-28 | Siemens AG, 1000 Berlin und 8000 München | Integrieter dynamischer schreib-lese-speicher |
JPS60103587A (ja) * | 1983-11-09 | 1985-06-07 | Toshiba Corp | 半導体記憶装置のメモリセルキヤパシタ電圧印加回路 |
JPH0766659B2 (ja) * | 1986-01-30 | 1995-07-19 | 三菱電機株式会社 | 半導体記憶装置 |
JPS62202397A (ja) * | 1986-02-28 | 1987-09-07 | Fujitsu Ltd | 半導体記憶装置 |
JPH0775248B2 (ja) * | 1990-06-07 | 1995-08-09 | 株式会社東芝 | ダイナミック型半導体メモリ |
JPH0685173A (ja) * | 1992-07-17 | 1994-03-25 | Toshiba Corp | 半導体集積回路用キャパシタ |
CA2158467A1 (en) * | 1993-03-17 | 1994-09-29 | Richard D. Freeman | Random access memory (ram) based configurable arrays |
US7337282B2 (en) * | 2003-11-28 | 2008-02-26 | Infineon Technologies Ag | Memory system and process for controlling a memory component to achieve different kinds of memory characteristics on one and the same memory component |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3755793A (en) * | 1972-04-13 | 1973-08-28 | Ibm | Latent image memory with single-device cells of two types |
DE2450116C2 (de) * | 1974-10-22 | 1976-09-16 | Siemens AG, 1000 Berlin und 8000 München | Dynamisches Ein-Transistor-Speicherelement für nichtflüchtige Speicher und Verfahren zu seinem Betrieb |
US3983544A (en) * | 1975-08-25 | 1976-09-28 | International Business Machines Corporation | Split memory array sharing same sensing and bit decode circuitry |
JPS5856264B2 (ja) * | 1977-05-31 | 1983-12-14 | 株式会社東芝 | 半導体記憶装置 |
US4230954A (en) * | 1978-12-29 | 1980-10-28 | International Business Machines Corporation | Permanent or semipermanent charge transfer storage systems |
-
1981
- 1981-02-10 US US06/233,066 patent/US4380803A/en not_active Expired - Lifetime
- 1981-10-20 EP EP81304889A patent/EP0057784B1/de not_active Expired
- 1981-10-20 DE DE8181304889T patent/DE3176752D1/de not_active Expired
- 1981-11-30 BR BR8107810A patent/BR8107810A/pt unknown
-
1982
- 1982-01-18 CA CA000394364A patent/CA1181847A/en not_active Expired
- 1982-01-21 JP JP943482A patent/JPS57143789A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0419710B2 (de) | 1992-03-31 |
BR8107810A (pt) | 1983-04-12 |
US4380803A (en) | 1983-04-19 |
EP0057784B1 (de) | 1988-05-18 |
JPS57143789A (en) | 1982-09-06 |
EP0057784A2 (de) | 1982-08-18 |
CA1181847A (en) | 1985-01-29 |
EP0057784A3 (en) | 1984-09-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |