JPS6414795A - Semiconductor storage device - Google Patents
Semiconductor storage deviceInfo
- Publication number
- JPS6414795A JPS6414795A JP62168659A JP16865987A JPS6414795A JP S6414795 A JPS6414795 A JP S6414795A JP 62168659 A JP62168659 A JP 62168659A JP 16865987 A JP16865987 A JP 16865987A JP S6414795 A JPS6414795 A JP S6414795A
- Authority
- JP
- Japan
- Prior art keywords
- phias
- selectively
- timing signal
- dynamic type
- type ram
- 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
- Dram (AREA)
Abstract
PURPOSE:To attain rapid I/O operation to/from all memory cells by providing the titled device with a function for selectively fetching only a prescribed low address signal for selecting a memory array by combining control signals supplied from the external by a prescribed method. CONSTITUTION:Two X-address signals AXi-1, AXi consisting of upper 2 bits are fetched into an array selecting circuit ASL through a low address buffer RADB in accordance with a timing signal phias and held. When a dynamic type RAM is in a page mode, the timing signal phias is selectively and independently formed. At that time, the dynamic type RAM is kept at a selected state. Thus, the timing signal phias is independently formed and the row address consisting of upper 2 bits is selectively fetched. Consequently, the dynamic type RAM can execute a rapid access mode such as a page mode over all the memory arrays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62168659A JPS6414795A (en) | 1987-07-08 | 1987-07-08 | Semiconductor storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62168659A JPS6414795A (en) | 1987-07-08 | 1987-07-08 | Semiconductor storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6414795A true JPS6414795A (en) | 1989-01-18 |
Family
ID=15872120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62168659A Pending JPS6414795A (en) | 1987-07-08 | 1987-07-08 | Semiconductor storage device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6414795A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05182452A (en) * | 1991-12-27 | 1993-07-23 | Nec Corp | High speed dynamic random access memory device |
| US6034911A (en) * | 1995-10-13 | 2000-03-07 | Nec Corporation | Semiconductor memory device for a rapid random access |
| WO2005004164A1 (en) * | 2003-06-30 | 2005-01-13 | Fujitsu Limited | Semiconductor storage device |
-
1987
- 1987-07-08 JP JP62168659A patent/JPS6414795A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05182452A (en) * | 1991-12-27 | 1993-07-23 | Nec Corp | High speed dynamic random access memory device |
| US6034911A (en) * | 1995-10-13 | 2000-03-07 | Nec Corporation | Semiconductor memory device for a rapid random access |
| WO2005004164A1 (en) * | 2003-06-30 | 2005-01-13 | Fujitsu Limited | Semiconductor storage device |
| US7102960B2 (en) | 2003-06-30 | 2006-09-05 | Fujitsu Limited | Semiconductor memory device |
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