JPS6439692A - Semiconductor memory device - Google Patents
Semiconductor memory deviceInfo
- Publication number
- JPS6439692A JPS6439692A JP62194490A JP19449087A JPS6439692A JP S6439692 A JPS6439692 A JP S6439692A JP 62194490 A JP62194490 A JP 62194490A JP 19449087 A JP19449087 A JP 19449087A JP S6439692 A JPS6439692 A JP S6439692A
- Authority
- JP
- Japan
- Prior art keywords
- plane
- planes
- address
- ram
- write
- 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 use a RAM large in capacity as the one easy to use and with a size like the RAM small or medium in capacity, by mapping memory cells in which an internal RAM is divided on the same address, and making its constitution into a plane. CONSTITUTION:The planes 2 are formed by dividing the memory cell 1 into N parts. An address buffer 3 which outputs an equivalent address Ab from an external address bus Ai to each plane is provided, and furthermore, a data buffer which performs the input and output of data (d1...dm) from a common data bus Db to N planes 2 is provided. In each of N planes 2, a memory cell control register 5 which controls read/write in a plane unit by the data bus Db is provided. In such a way, it is possible to perform the simultaneous read/ write of the plane.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62194490A JPS6439692A (en) | 1987-08-05 | 1987-08-05 | Semiconductor memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62194490A JPS6439692A (en) | 1987-08-05 | 1987-08-05 | Semiconductor memory device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6439692A true JPS6439692A (en) | 1989-02-09 |
Family
ID=16325390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62194490A Pending JPS6439692A (en) | 1987-08-05 | 1987-08-05 | Semiconductor memory device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6439692A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100328374B1 (en) * | 1997-09-30 | 2002-09-04 | 닛본 덴기 가부시끼가이샤 | Semiconductor memory and its driving method |
-
1987
- 1987-08-05 JP JP62194490A patent/JPS6439692A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100328374B1 (en) * | 1997-09-30 | 2002-09-04 | 닛본 덴기 가부시끼가이샤 | Semiconductor memory and its driving method |
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