JPS621236U - - Google Patents
Info
- Publication number
- JPS621236U JPS621236U JP9175585U JP9175585U JPS621236U JP S621236 U JPS621236 U JP S621236U JP 9175585 U JP9175585 U JP 9175585U JP 9175585 U JP9175585 U JP 9175585U JP S621236 U JPS621236 U JP S621236U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- ground
- microcomputer
- base end
- reset signal
- 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 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electronic Switches (AREA)
Description
第１図は本考案の実施例を示す回路図、第２図
は従来例を示す回路図、第３図は第２図の回路の
動作を示す電圧波形説明図である。
Ｔｒはスイツチングトランジスタ、Ｂはベース
端、Ｅはアース端、ＶＤＤは電源、Ｃ２，Ｃ３は
コンデンサ。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing a conventional example, and FIG. 3 is a voltage waveform explanatory diagram showing the operation of the circuit shown in FIG. Tr is a switching transistor, B is a base terminal, E is a ground terminal, VDD is a power supply, and C2 and C3 are capacitors.
Claims (1)
電源投入時にリセツト信号を出力するマイクロコ
ンピユータ用リセツト回路において、リセツト信
号の出力をＯＮ―ＯＦＦするスイツチングトラン
ジスタのベース端とアースとの間及びベース端と
電源との間に夫々コンデンサを付加したことを特
徴とするマイクロコンピユータ用リセツト回路。 In a microcomputer reset circuit that outputs a reset signal when the power supply voltage drops below a set voltage or when the power is turned on, there is a connection between the base end and ground of the switching transistor that turns the output of the reset signal ON and OFF, and between the base end and the ground. A reset circuit for a microcomputer, characterized in that a capacitor is added between each power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9175585U JPS621236U (en) | 1985-06-18 | 1985-06-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9175585U JPS621236U (en) | 1985-06-18 | 1985-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS621236U true JPS621236U (en) | 1987-01-07 |
Family
ID=30647925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9175585U Pending JPS621236U (en) | 1985-06-18 | 1985-06-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS621236U (en) |
-
1985
- 1985-06-18 JP JP9175585U patent/JPS621236U/ja active Pending