JPH0164730U - - Google Patents
Info
- Publication number
- JPH0164730U JPH0164730U JP1987160135U JP16013587U JPH0164730U JP H0164730 U JPH0164730 U JP H0164730U JP 1987160135 U JP1987160135 U JP 1987160135U JP 16013587 U JP16013587 U JP 16013587U JP H0164730 U JPH0164730 U JP H0164730U
- Authority
- JP
- Japan
- Prior art keywords
- time constant
- circuit
- microcomputer
- reset signal
- voltage
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Power Sources (AREA)
Description
第１図は、本考案の一実施例を示す回路図、及
び第２図は従来のマイコンの制御回路を示す回路
図である。
６……電源端子、７……時定数回路、１０……
リセツト信号発生用ＩＣ、１１……マイコン、１
３……検出回路。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a circuit diagram showing a conventional microcomputer control circuit. 6...Power terminal, 7 ...Time constant circuit, 10...
Reset signal generation IC, 11...Microcomputer, 1
3...Detection circuit.
Claims (1)
圧を発生する時定数回路と、該時定数回路の出力
電圧が所定レベル以下のときリセツト信号を発生
するリセツト信号発生回路と、電源電圧の瞬時低
下を検出する検出回路と、前記リセツト信号に応
じてリセツトされ、前記検出回路の出力信号に応
じてスタンバイモードとなるマイクロコンピユー
タとを備え、電源電圧の瞬時低下を前記時定数回
路により吸収する様にしたことを特徴とするマイ
クロコンピユータの制御回路。 A time constant circuit that generates an output voltage that rises at a predetermined time constant when the power is turned on, a reset signal generation circuit that generates a reset signal when the output voltage of the time constant circuit is below a predetermined level, and an instantaneous rise of the power supply voltage. The microcomputer is equipped with a detection circuit for detecting a voltage drop, and a microcomputer that is reset in response to the reset signal and placed in standby mode in response to the output signal of the detection circuit, and is configured to absorb an instantaneous drop in power supply voltage by the time constant circuit. A microcomputer control circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160135U JPH0164730U (en) | 1987-10-20 | 1987-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160135U JPH0164730U (en) | 1987-10-20 | 1987-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0164730U true JPH0164730U (en) | 1989-04-25 |
Family
ID=31441937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987160135U Pending JPH0164730U (en) | 1987-10-20 | 1987-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0164730U (en) |
-
1987
- 1987-10-20 JP JP1987160135U patent/JPH0164730U/ja active Pending
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