JPS5537610A - Microcomputer reset circuit - Google Patents

Microcomputer reset circuit

Info

Publication number
JPS5537610A
JPS5537610A JP10866678A JP10866678A JPS5537610A JP S5537610 A JPS5537610 A JP S5537610A JP 10866678 A JP10866678 A JP 10866678A JP 10866678 A JP10866678 A JP 10866678A JP S5537610 A JPS5537610 A JP S5537610A
Authority
JP
Japan
Prior art keywords
voltage
time
comparator
microcomputer
secured
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
Application number
JP10866678A
Other languages
Japanese (ja)
Inventor
Shunji Iwasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10866678A priority Critical patent/JPS5537610A/en
Publication of JPS5537610A publication Critical patent/JPS5537610A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To make it possible to eliminate malfunction as to power feed or break by equipping a voltage comparator and a reference power supply which provides a voltage higher than the lowest operation guarantee voltage of a microcomputer.
CONSTITUTION: Reference voltage 16 led to the input terminal of voltage comparator 17 is set a little bit higher than minimum value Vcc(min) of the operation guarantee voltage of microcomputer μC1 and power voltage (b) is supplied to the other input terminal; at the time of b<Vr, output voltage (c) (reset voltage) of comparator 17 is held at a high level, and (b) is set between maximum value Vcc (max) of the operation guarantee voltage of μC1 by selecting Zener diode 12. As a result, when switch 6 is turned OFF at time (t2) and ON again at time (t4), the operation is not secured between (t3) and (t5) and the power supply is put to work between (t6) and (t3), and (t5) and (t7) to the contrary, so that reset operation will be secured.
COPYRIGHT: (C)1980,JPO&Japio
JP10866678A 1978-09-06 1978-09-06 Microcomputer reset circuit Pending JPS5537610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10866678A JPS5537610A (en) 1978-09-06 1978-09-06 Microcomputer reset circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10866678A JPS5537610A (en) 1978-09-06 1978-09-06 Microcomputer reset circuit

Publications (1)

Publication Number Publication Date
JPS5537610A true JPS5537610A (en) 1980-03-15

Family

ID=14490590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10866678A Pending JPS5537610A (en) 1978-09-06 1978-09-06 Microcomputer reset circuit

Country Status (1)

Country Link
JP (1) JPS5537610A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196371U (en) * 1981-06-09 1982-12-13
JPS5819539U (en) * 1981-07-31 1983-02-07 日本電気ホームエレクトロニクス株式会社 Starting device for signal processing circuit
JPS59202239A (en) * 1983-04-30 1984-11-16 Denki Kagaku Kogyo Kk Production of spinning dope of alumina/zirconia fiber
JPS60205373A (en) * 1984-03-30 1985-10-16 Aisin Seiki Co Ltd Decreasing voltage detecting device
JPS60252717A (en) * 1984-05-25 1985-12-13 Mitsubishi Chem Ind Ltd Production of ceramic fiber blanket
JPS6269870A (en) * 1985-09-17 1987-03-31 東芝モノフラックス株式会社 Inorganic fiber mat excellent in elasticity and its production
JPS62191513A (en) * 1986-02-17 1987-08-21 Taimei Kagaku Kogyo Kk Production of metal oxide fiber
JPS62191514A (en) * 1986-02-17 1987-08-21 Taimei Kagaku Kogyo Kk Production of metal oxide fiber
JPS62289612A (en) * 1986-04-21 1987-12-16 ミネソタ　マイニング　アンド　マニユフアクチユアリング　カンパニ− Refractory fiber and its production
JPS63274636A (en) * 1987-05-06 1988-11-11 Taimei Kagaku Kogyo Kk Manufacture of fine denier alumina continuous fiber
JPS63288217A (en) * 1987-05-19 1988-11-25 Denki Kagaku Kogyo Kk Production of high-performance alumina filament
KR20000056201A (en) * 1999-02-13 2000-09-15 윤종용 Reset circuit for protection against malfunction of micro-computer

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196371U (en) * 1981-06-09 1982-12-13
JPS5819539U (en) * 1981-07-31 1983-02-07 日本電気ホームエレクトロニクス株式会社 Starting device for signal processing circuit
JPS59202239A (en) * 1983-04-30 1984-11-16 Denki Kagaku Kogyo Kk Production of spinning dope of alumina/zirconia fiber
JPS60205373A (en) * 1984-03-30 1985-10-16 Aisin Seiki Co Ltd Decreasing voltage detecting device
JPH0541726B2 (en) * 1984-05-25 1993-06-24 Mitsubishi Chem Ind
JPS60252717A (en) * 1984-05-25 1985-12-13 Mitsubishi Chem Ind Ltd Production of ceramic fiber blanket
JPS6269870A (en) * 1985-09-17 1987-03-31 東芝モノフラックス株式会社 Inorganic fiber mat excellent in elasticity and its production
JPS62191513A (en) * 1986-02-17 1987-08-21 Taimei Kagaku Kogyo Kk Production of metal oxide fiber
JPS62191514A (en) * 1986-02-17 1987-08-21 Taimei Kagaku Kogyo Kk Production of metal oxide fiber
JPS62289612A (en) * 1986-04-21 1987-12-16 ミネソタ　マイニング　アンド　マニユフアクチユアリング　カンパニ− Refractory fiber and its production
JPS63274636A (en) * 1987-05-06 1988-11-11 Taimei Kagaku Kogyo Kk Manufacture of fine denier alumina continuous fiber
JPS63288217A (en) * 1987-05-19 1988-11-25 Denki Kagaku Kogyo Kk Production of high-performance alumina filament
KR20000056201A (en) * 1999-02-13 2000-09-15 윤종용 Reset circuit for protection against malfunction of micro-computer

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