JPH01142078U - - Google Patents
Info
- Publication number
- JPH01142078U JPH01142078U JP3914888U JP3914888U JPH01142078U JP H01142078 U JPH01142078 U JP H01142078U JP 3914888 U JP3914888 U JP 3914888U JP 3914888 U JP3914888 U JP 3914888U JP H01142078 U JPH01142078 U JP H01142078U
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor memory
- internal
- terminal
- light emitting
- internal battery
- 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 3
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は、本考案の回路図、第２図は、第１図
のＩＣメモリカードの外形図、第３図は、従来の
回路図である。
Ｄ１……ダイオード、Ｄ２……ツエナーダイオ
ード、Ｄ３……発光ダイオード、Ｒ……抵抗器、
ＳＷ……機械的スイツチ、ＢＡＴ……内部電池、
Ａ０〜Ａｎ……アドレス端子、ＣＳ……チツプセ
レクト端子、……ライトイネーブル端子、Ｒ
ＡＭ１〜ｍ……半導体メモリ、Ｖｃｃ……電源端
子、ＢＣ……内部電池電圧チエツク端子、１……
ＩＣメモリカード本体、２……外部端子、３……
上記ＳＷ、４……小窓。
FIG. 1 is a circuit diagram of the present invention, FIG. 2 is an outline diagram of the IC memory card of FIG. 1, and FIG. 3 is a conventional circuit diagram. D 1 ... diode, D 2 ... Zener diode, D 3 ... light emitting diode, R ... resistor,
SW...mechanical switch, BAT...internal battery,
A 0 to A n ... Address terminal, CS ... Chip select terminal, ... Write enable terminal, R
AM 1~m ...Semiconductor memory, Vcc...Power supply terminal, BC...Internal battery voltage check terminal, 1...
IC memory card body, 2... external terminal, 3...
Above SW, 4...Small window.
Claims (1)
モリカードにおいて、内部半導体メモリの電源端
子と接地間に機械的スイツチとツエナーダイオー
ドと発光ダイオードが直列に接続されていること
を特徴とするメモリカード。 An IC memory card equipped with a semiconductor memory and an internal battery, characterized in that a mechanical switch, a Zener diode, and a light emitting diode are connected in series between a power terminal of the internal semiconductor memory and ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3914888U JPH01142078U (en) | 1988-03-24 | 1988-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3914888U JPH01142078U (en) | 1988-03-24 | 1988-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01142078U true JPH01142078U (en) | 1989-09-28 |
Family
ID=31265670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3914888U Pending JPH01142078U (en) | 1988-03-24 | 1988-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01142078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009505251A (en) * | 2005-08-19 | 2009-02-05 | ギーゼッケ ウント デフリエント ゲーエムベーハー | Card type data carrier |
-
1988
- 1988-03-24 JP JP3914888U patent/JPH01142078U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009505251A (en) * | 2005-08-19 | 2009-02-05 | ギーゼッケ ウント デフリエント ゲーエムベーハー | Card type data carrier |
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