JPH0290538U - - Google Patents
Info
- Publication number
- JPH0290538U JPH0290538U JP16948088U JP16948088U JPH0290538U JP H0290538 U JPH0290538 U JP H0290538U JP 16948088 U JP16948088 U JP 16948088U JP 16948088 U JP16948088 U JP 16948088U JP H0290538 U JPH0290538 U JP H0290538U
- Authority
- JP
- Japan
- Prior art keywords
- clear
- circuit
- power supply
- output
- resistors
- 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
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Description
第１図は本考案によるパワーオン・クリア回路
の一実施例を示すブロツク図である。
１…電源端子、２…ＣＲ積分回路、３…２入力
シユミツト・トリガＮＡＮＤ回路、４…インバー
タ、５…抵抗、６…抵抗、７…クリア信号出力端
子。
FIG. 1 is a block diagram showing an embodiment of a power-on clear circuit according to the present invention. 1... Power supply terminal, 2... CR integration circuit, 3... 2-input Schmitt trigger NAND circuit, 4... Inverter, 5... Resistor, 6... Resistor, 7... Clear signal output terminal.
Claims (1)
ツトし直す回路等に送出するクリア信号を電源起
動後、一定時間経過後に出力するパワーオン・ク
リア回路において、電源電圧の印加により動作を
開始するＣＲ積分回路と、電源端子とクリア出力
端子間に、直列接続された第１および第２抵抗と
、２入力が前記ＣＲ積分回路出力と前記第１およ
び第２抵抗の接続点にそれぞれ接続され、出力が
クリア出力端子に接続された論理積回路とから構
成されたことを特徴とするパワーオン・クリア回
路。 A CR that starts operating when power supply voltage is applied in a power-on clear circuit that collects data periodically and outputs a clear signal to the reset circuit etc. after a certain period of time has elapsed after the power supply is turned on, in order to collect and identify data. an integrator circuit, first and second resistors connected in series between a power supply terminal and a clear output terminal, two inputs each connected to a connection point between the CR integrator circuit output and the first and second resistors, and an output and an AND circuit connected to a clear output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16948088U JPH0290538U (en) | 1988-12-28 | 1988-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16948088U JPH0290538U (en) | 1988-12-28 | 1988-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0290538U true JPH0290538U (en) | 1990-07-18 |
Family
ID=31459579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16948088U Pending JPH0290538U (en) | 1988-12-28 | 1988-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0290538U (en) |
-
1988
- 1988-12-28 JP JP16948088U patent/JPH0290538U/ja active Pending
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