JPS5717043A - Power-on resetting circuit - Google Patents

Power-on resetting circuit

Info

Publication number
JPS5717043A
JPS5717043A JP9065480A JP9065480A JPS5717043A JP S5717043 A JPS5717043 A JP S5717043A JP 9065480 A JP9065480 A JP 9065480A JP 9065480 A JP9065480 A JP 9065480A JP S5717043 A JPS5717043 A JP S5717043A
Authority
JP
Japan
Prior art keywords
gate
supplied
output
certain time
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
Application number
JP9065480A
Other languages
Japanese (ja)
Inventor
Katsuzo Sakai
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 JP9065480A priority Critical patent/JPS5717043A/en
Publication of JPS5717043A publication Critical patent/JPS5717043A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/24—Resetting means

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To obtain the reset signal that continues for a certain time necessary for initial resetting, by resetting an FF in a certain time after installing the FF and an integral network in case the initialization reset signal is obtained to be used for a microcomputer. CONSTITUTION:The power source +Vcc is supplied to an integral network 1 consisting of a resistance R1 and a capacitor C1 and receives a waveform shaping through a Schmitt gate 2 and an inverter gate 3. The output of the shaped gate 3 is supplied to a terminal S formed with NOR gates 7 and 8. Then a power-on reset signal 13 is extracted out of the output of the gate 8 and at the same time supplied to an inverter gate 10. And the output of an integral network 11 comprising a resistance R2 and a capacitor C2 is supplied to the input of the terminal R of an FF9 after a waveform shaping received through a Schmitt gate 12. In such constitution, a signal 15 that continues for a certain time after a normal rise of the power source is obtained at the signal 13. Thus a hang-up can be prevented for a computer.
JP9065480A 1980-07-04 1980-07-04 Power-on resetting circuit Pending JPS5717043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9065480A JPS5717043A (en) 1980-07-04 1980-07-04 Power-on resetting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9065480A JPS5717043A (en) 1980-07-04 1980-07-04 Power-on resetting circuit

Publications (1)

Publication Number Publication Date
JPS5717043A true JPS5717043A (en) 1982-01-28

Family

ID=14004501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9065480A Pending JPS5717043A (en) 1980-07-04 1980-07-04 Power-on resetting circuit

Country Status (1)

Country Link
JP (1) JPS5717043A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59126322A (en) * 1982-12-29 1984-07-20 Fujitsu Ltd Semiconductor integrated circuit
JPS6095635U (en) * 1983-11-30 1985-06-29 松下電工株式会社 reset circuit
JPS63246919A (en) * 1987-04-01 1988-10-13 Mitsubishi Electric Corp Power-on reset pulse generating circuit
JPH02177612A (en) * 1988-12-28 1990-07-10 Omron Tateisi Electron Co Power source reset circuit for direct current two-wire type sensor
JPH0292233U (en) * 1989-01-09 1990-07-23

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5111448A (en) * 1974-06-12 1976-01-29 Varian Associates
JPS5114858A (en) * 1974-07-27 1976-02-05 Hitachi Cable EKIATSUOSHI DASHIHO
JPS521027B2 (en) * 1974-01-31 1977-01-12
JPS52130561A (en) * 1976-04-26 1977-11-01 Seiko Epson Corp Auto-clear circuit
JPS5515816B2 (en) * 1971-08-31 1980-04-26

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5515816B2 (en) * 1971-08-31 1980-04-26
JPS521027B2 (en) * 1974-01-31 1977-01-12
JPS5111448A (en) * 1974-06-12 1976-01-29 Varian Associates
JPS5114858A (en) * 1974-07-27 1976-02-05 Hitachi Cable EKIATSUOSHI DASHIHO
JPS52130561A (en) * 1976-04-26 1977-11-01 Seiko Epson Corp Auto-clear circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59126322A (en) * 1982-12-29 1984-07-20 Fujitsu Ltd Semiconductor integrated circuit
JPS6095635U (en) * 1983-11-30 1985-06-29 松下電工株式会社 reset circuit
JPS63246919A (en) * 1987-04-01 1988-10-13 Mitsubishi Electric Corp Power-on reset pulse generating circuit
JPH02177612A (en) * 1988-12-28 1990-07-10 Omron Tateisi Electron Co Power source reset circuit for direct current two-wire type sensor
JPH0292233U (en) * 1989-01-09 1990-07-23

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