JPH0250736U - - Google Patents
Info
- Publication number
- JPH0250736U JPH0250736U JP12935388U JP12935388U JPH0250736U JP H0250736 U JPH0250736 U JP H0250736U JP 12935388 U JP12935388 U JP 12935388U JP 12935388 U JP12935388 U JP 12935388U JP H0250736 U JPH0250736 U JP H0250736U
- Authority
- JP
- Japan
- Prior art keywords
- memory
- pattern
- mounting
- pin
- switches
- 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
- 239000004065 semiconductor Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
- Dram (AREA)
Description
第１図及び第２図は本考案の実施例を示す回路
図、第３図は６４Ｋｂのメモリ容量を有する半導
体メモリ素子と２５６Ｋｂのメモリ容量を有する
半導体メモリ素子とのピン配列を説明するための
模式図である。
１，２，１０……半導体メモリ素子、３〜５…
…第１〜第３切換回路。
1 and 2 are circuit diagrams showing an embodiment of the present invention, and FIG. 3 is a circuit diagram for explaining the pin arrangement of a semiconductor memory device having a memory capacity of 64 Kb and a semiconductor memory device having a memory capacity of 256 Kb. It is a schematic diagram. 1, 2, 10... semiconductor memory element, 3-5...
...First to third switching circuits.
Claims (1)
リ容量を有する半導体メモリ素子を選択的に実装
可能な取付けパターンと、該パターンに夫々接続
される上記メモリ素子の各ピンへ供給される信号
を上記メモリ素子毎に切換える切換回路とを備え
たことを特徴とする電子機器。 A mounting pattern capable of selectively mounting semiconductor memory elements having the same pin arrangement and different memory capacities, and a mounting pattern that allows signals to be supplied to each pin of the memory element connected to the pattern to be connected to the memory. An electronic device characterized by comprising a switching circuit that switches each element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12935388U JPH0250736U (en) | 1988-09-30 | 1988-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12935388U JPH0250736U (en) | 1988-09-30 | 1988-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0250736U true JPH0250736U (en) | 1990-04-10 |
Family
ID=31383553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12935388U Pending JPH0250736U (en) | 1988-09-30 | 1988-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0250736U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63153795A (en) * | 1986-12-18 | 1988-06-27 | Victor Co Of Japan Ltd | Dynamic ram access circuit |
-
1988
- 1988-09-30 JP JP12935388U patent/JPH0250736U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63153795A (en) * | 1986-12-18 | 1988-06-27 | Victor Co Of Japan Ltd | Dynamic ram access circuit |