IT970965B - Sistema di memoria perfezionato - Google Patents
Sistema di memoria perfezionatoInfo
- Publication number
- IT970965B IT970965B IT31776/72A IT3177672A IT970965B IT 970965 B IT970965 B IT 970965B IT 31776/72 A IT31776/72 A IT 31776/72A IT 3177672 A IT3177672 A IT 3177672A IT 970965 B IT970965 B IT 970965B
- Authority
- IT
- Italy
- Prior art keywords
- memory system
- improved memory
- improved
- memory
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/18—Digital stores in which the information is moved stepwise, e.g. shift registers using capacitors as main elements of the stages
- G11C19/182—Digital stores in which the information is moved stepwise, e.g. shift registers using capacitors as main elements of the stages in combination with semiconductor elements, e.g. bipolar transistors, diodes
- G11C19/188—Organisation of a multiplicity of shift registers, e.g. regeneration, timing or input-output circuits
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
- G06F13/4234—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a memory bus
- G06F13/4243—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a memory bus with synchronous protocol
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
- G11C19/287—Organisation of a multiplicity of shift registers
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Memory System (AREA)
- Dram (AREA)
- Memory System Of A Hierarchy Structure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00214364A US3800295A (en) | 1971-12-30 | 1971-12-30 | Asynchronously operated memory system |
Publications (1)
Publication Number | Publication Date |
---|---|
IT970965B true IT970965B (it) | 1974-04-20 |
Family
ID=22798792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT31776/72A IT970965B (it) | 1971-12-30 | 1972-11-17 | Sistema di memoria perfezionato |
Country Status (7)
Country | Link |
---|---|
US (1) | US3800295A (it) |
JP (1) | JPS5539072B2 (it) |
CA (1) | CA975466A (it) |
DE (1) | DE2252489A1 (it) |
FR (1) | FR2166225B1 (it) |
GB (1) | GB1356530A (it) |
IT (1) | IT970965B (it) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2247835C3 (de) * | 1972-09-29 | 1978-10-05 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zum Regenerieren der Speicherinhalte von MOS-Speichern und MOS-Speicher zur Durchführung dieses Verfahrens |
US4028675A (en) * | 1973-05-14 | 1977-06-07 | Hewlett-Packard Company | Method and apparatus for refreshing semiconductor memories in multi-port and multi-module memory system |
NL7410610A (nl) * | 1973-08-10 | 1975-02-12 | Data General Corp | Stelsel voor het verwerken van gegevens. |
USRE30331E (en) * | 1973-08-10 | 1980-07-08 | Data General Corporation | Data processing system having a unique CPU and memory timing relationship and data path configuration |
US3986176A (en) * | 1975-06-09 | 1976-10-12 | Rca Corporation | Charge transfer memories |
JPS589510B2 (ja) * | 1975-08-08 | 1983-02-21 | 三菱電機株式会社 | キオクソウチ |
IT1041882B (it) * | 1975-08-20 | 1980-01-10 | Honeywell Inf Systems | Memoria dinamica a semiconduttori e relativo sistema di recarica |
JPS5255337A (en) * | 1975-10-31 | 1977-05-06 | Hitachi Ltd | Refresh control system |
US4172282A (en) * | 1976-10-29 | 1979-10-23 | International Business Machines Corporation | Processor controlled memory refresh |
US4110842A (en) * | 1976-11-15 | 1978-08-29 | Advanced Micro Devices, Inc. | Random access memory with memory status for improved access and cycle times |
IT1117301B (it) * | 1977-05-25 | 1986-02-17 | Olivetti & Co Spa | Calcotore elettronico con dispositivo di rinfresco di una memoria operativa dinamica |
JPS588075B2 (ja) * | 1977-07-29 | 1983-02-14 | 富士通株式会社 | メモリ・アレイ・カ−ド |
US4238842A (en) * | 1978-12-26 | 1980-12-09 | Ibm Corporation | LARAM Memory with reordered selection sequence for refresh |
JPS55132593A (en) * | 1979-04-02 | 1980-10-15 | Fujitsu Ltd | Refresh control method for memory unit |
FR2474227A1 (fr) * | 1980-01-17 | 1981-07-24 | Cii Honeywell Bull | Procede de rafraichissement pour banc de memoire a circuit " mos " et sequenceur correspondant |
JPS59140694A (ja) * | 1983-01-31 | 1984-08-13 | Sharp Corp | ダイナミツクramのリフレツシユ方法 |
AT389014B (de) * | 1983-09-30 | 1989-10-10 | Schoellauf Hannes Ing | Zentraleinheit mit speicher |
US4701843A (en) * | 1985-04-01 | 1987-10-20 | Ncr Corporation | Refresh system for a page addressable memory |
US5193165A (en) * | 1989-12-13 | 1993-03-09 | International Business Machines Corporation | Memory card refresh buffer |
US5522064A (en) * | 1990-10-01 | 1996-05-28 | International Business Machines Corporation | Data processing apparatus for dynamically setting timings in a dynamic memory system |
US5335201A (en) * | 1991-04-15 | 1994-08-02 | Micron Technology, Inc. | Method for providing synchronous refresh cycles in self-refreshing interruptable DRAMs |
US5379400A (en) * | 1992-08-07 | 1995-01-03 | International Business Machines Corp. | Method and system for determining memory refresh rate |
US5638529A (en) * | 1992-08-24 | 1997-06-10 | Intel Corporation | Variable refresh intervals for system devices including setting the refresh interval to zero |
US5617551A (en) * | 1992-09-18 | 1997-04-01 | New Media Corporation | Controller for refreshing a PSRAM using individual automatic refresh cycles |
AU6988494A (en) * | 1993-05-28 | 1994-12-20 | Rambus Inc. | Method and apparatus for implementing refresh in a synchronous dram system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3599180A (en) * | 1968-11-29 | 1971-08-10 | Gen Instrument Corp | Random access read-write memory system having data refreshing capabilities and memory cell therefor |
US3665422A (en) * | 1970-01-26 | 1972-05-23 | Electronic Arrays | Integrated circuit,random access memory |
US3705392A (en) * | 1971-09-07 | 1972-12-05 | Texas Instruments Inc | Mos dynamic memory |
US3760379A (en) * | 1971-12-29 | 1973-09-18 | Honeywell Inf Systems | Apparatus and method for memory refreshment control |
-
1971
- 1971-12-30 US US00214364A patent/US3800295A/en not_active Expired - Lifetime
-
1972
- 1972-10-26 DE DE2252489A patent/DE2252489A1/de active Pending
- 1972-11-17 IT IT31776/72A patent/IT970965B/it active
- 1972-11-22 GB GB5404772A patent/GB1356530A/en not_active Expired
- 1972-11-28 JP JP11862272A patent/JPS5539072B2/ja not_active Expired
- 1972-12-21 FR FR7247117A patent/FR2166225B1/fr not_active Expired
- 1972-12-27 CA CA159,937A patent/CA975466A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS4878836A (it) | 1973-10-23 |
DE2252489A1 (de) | 1973-07-05 |
CA975466A (en) | 1975-09-30 |
FR2166225A1 (it) | 1973-08-10 |
US3800295A (en) | 1974-03-26 |
FR2166225B1 (it) | 1976-08-27 |
GB1356530A (en) | 1974-06-12 |
JPS5539072B2 (it) | 1980-10-08 |
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