JPS5949239U - Power-on clear circuit - Google Patents
Power-on clear circuitInfo
- Publication number
- JPS5949239U JPS5949239U JP11205983U JP11205983U JPS5949239U JP S5949239 U JPS5949239 U JP S5949239U JP 11205983 U JP11205983 U JP 11205983U JP 11205983 U JP11205983 U JP 11205983U JP S5949239 U JPS5949239 U JP S5949239U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- capacitor
- potential side
- power
- 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.)
- Granted
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図〜第３図は従来のパワー−オンクリア回路の回路
図および動作説明用波形図、第４図は本考案回路の基本
部分の回路図、第５図および第６図はその動作説明用波
形図、第゛７図は本考案の実施例を示す回路図である。
図面でＩ７． ＮＧはインバータ、ＶＤＤは電源の高電
位側、ＶＳＳは電源の低電位側、Ｃ６，Ｃ６はコンデン
サ、ＮＯＲ，Ｉｓはリセツ１−信号出力回路である。Figures 1 to 3 are circuit diagrams and waveform diagrams for explaining the operation of a conventional power-on-clear circuit, Figure 4 is a circuit diagram of the basic part of the circuit of the present invention, and Figures 5 and 6 are for explaining its operation. FIG. 7 is a circuit diagram showing an embodiment of the present invention. I7. NG is an inverter, VDD is a high potential side of the power supply, VSS is a low potential side of the power supply, C6 and C6 are capacitors, and NOR and Is are reset 1 signal output circuits.
Claims (1)
なり、該２つのゲート回路のうち一方のゲート回路の出
力端はコンデンサにより電源の高電位側へ、他方のゲー
ト回路の出力端は他のコンデンサにより電源の低電位側
へ接続し、該一方のゲート回路は該他方のゲート回路よ
りスレッショルド電圧を高くしたフリップフロップと、
該フリップフロップの出力により回路群がすべてクリア
されたことを検出して該フリップフロップをリセットす
る信号を出力する回路とを有し、上記回路群のクリア検
出出力は各々コンデンサを介して電源の高電位側へ接続
したことを特徴とするパワーオンクリア回路。The output terminal of one of the two gate circuits is connected to the high potential side of the power supply by a capacitor, and the output terminal of the other gate circuit is connected to the high potential side of the power supply by a capacitor. a flip-flop connected to the low potential side of a power supply through a capacitor, one gate circuit having a higher threshold voltage than the other gate circuit;
The circuit includes a circuit that detects that all the circuit groups have been cleared by the output of the flip-flop and outputs a signal to reset the flip-flop, and the clear detection output of the circuit group is connected to the high voltage of the power supply via a capacitor. A power-on clear circuit characterized by being connected to the potential side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11205983U JPS5949239U (en) | 1983-07-19 | 1983-07-19 | Power-on clear circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11205983U JPS5949239U (en) | 1983-07-19 | 1983-07-19 | Power-on clear circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5949239U true JPS5949239U (en) | 1984-04-02 |
| JPS647388Y2 JPS647388Y2 (en) | 1989-02-28 |
Family
ID=30259920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11205983U Granted JPS5949239U (en) | 1983-07-19 | 1983-07-19 | Power-on clear circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5949239U (en) |
-
1983
- 1983-07-19 JP JP11205983U patent/JPS5949239U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS647388Y2 (en) | 1989-02-28 |
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