JPS6249331U - - Google Patents
Info
- Publication number
- JPS6249331U JPS6249331U JP14023485U JP14023485U JPS6249331U JP S6249331 U JPS6249331 U JP S6249331U JP 14023485 U JP14023485 U JP 14023485U JP 14023485 U JP14023485 U JP 14023485U JP S6249331 U JPS6249331 U JP S6249331U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- time constant
- constant circuit
- chip enable
- converter outputs
- 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
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Description
第１図は、本考案のＩＣへの電圧供給装置の一
実施例の回路図であり、第２図は、第１図の動作
を説明するタイムチヤートである。
１：ＩＣへの電源供給装置、４：第１電圧変換
器、５：第２電圧変換器、７：ＩＣ、８：電源端
子、９，１２：コンデンサ、１１：チツプイネー
ブル端子、１３：トランジスタ。
FIG. 1 is a circuit diagram of an embodiment of a voltage supply device for an IC according to the present invention, and FIG. 2 is a time chart illustrating the operation of FIG. 1. 1: power supply device to IC, 4: first voltage converter, 5: second voltage converter, 7: IC, 8: power supply terminal, 9, 12: capacitor, 11: chip enable terminal, 13: transistor.
Claims (1)
圧変換器でさらに低い第２電圧を出力させ、この
第２電圧を第１時定数回路を介してＩＣの電源端
子に与えるとともに、前記第１時定数回路より時
定数の大きい第２時定数回路を介して前記ＩＣの
チツプイネーブル端子に与え、さらに前記チツプ
イネーブル端子と接地との間にスイツチ回路を介
装させ、このスイツチ回路を前記第１電圧の低下
により導通させるようにしたことを特徴とするＩ
Ｃへの電圧供給装置。 A first voltage converter outputs a first voltage, a second voltage converter outputs a lower second voltage, this second voltage is applied to the power supply terminal of the IC via a first time constant circuit, and the A second time constant circuit having a larger time constant than the first time constant circuit is applied to the chip enable terminal of the IC, and a switch circuit is interposed between the chip enable terminal and the ground. I characterized in that conduction is caused by a decrease in the first voltage.
Voltage supply device to C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14023485U JPS6249331U (en) | 1985-09-13 | 1985-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14023485U JPS6249331U (en) | 1985-09-13 | 1985-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6249331U true JPS6249331U (en) | 1987-03-26 |
Family
ID=31046890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14023485U Pending JPS6249331U (en) | 1985-09-13 | 1985-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6249331U (en) |
-
1985
- 1985-09-13 JP JP14023485U patent/JPS6249331U/ja active Pending
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