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JPS5547727A - Power on reset circuit - Google Patents

Power on reset circuit

Info

Publication number
JPS5547727A
JPS5547727A JP12169078A JP12169078A JPS5547727A JP S5547727 A JPS5547727 A JP S5547727A JP 12169078 A JP12169078 A JP 12169078A JP 12169078 A JP12169078 A JP 12169078A JP S5547727 A JPS5547727 A JP S5547727A
Authority
JP
Japan
Prior art keywords
circuit
power supply
power
reset pulse
inverter
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
JP12169078A
Other languages
Japanese (ja)
Inventor
Masayoshi Tomita
Fumitaka Asami
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP12169078A priority Critical patent/JPS5547727A/en
Publication of JPS5547727A publication Critical patent/JPS5547727A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
    • H03K3/356—Bistable circuits
    • H03K3/356008—Bistable circuits ensuring a predetermined initial state when the supply voltage has been applied; storing the actual state when the supply voltage fails

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To save power by avoiding power consumption almost other than reset pulse generation. CONSTITUTION:The power supply voltage VDD is picked up as the reset pulse output(f) for clear of IC chip via the voltage division circuit 1, first inverter 2, two input NAND circuit 3, weighting circuit 4, second inverter circuit 5, third inverter circuit 6, and fourth inverter circuit 7. Each circuit is constituted with MOS transistors having the threshold voltage VTH, and the potential at each point (a)-(f) at transient time from the time point t1 of power supply application to the rising of power supply voltage VDD, is as shown in Figure, and the pulse (f) leading for a given period at time t2 and again trailing, is used as the reset pulse.
JP12169078A 1978-10-03 1978-10-03 Power on reset circuit Pending JPS5547727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12169078A JPS5547727A (en) 1978-10-03 1978-10-03 Power on reset circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12169078A JPS5547727A (en) 1978-10-03 1978-10-03 Power on reset circuit

Publications (1)

Publication Number Publication Date
JPS5547727A true JPS5547727A (en) 1980-04-04

Family

ID=14817455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12169078A Pending JPS5547727A (en) 1978-10-03 1978-10-03 Power on reset circuit

Country Status (1)

Country Link
JP (1) JPS5547727A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4367422A (en) * 1980-10-01 1983-01-04 General Electric Company Power on restart circuit
US4463270A (en) * 1980-07-24 1984-07-31 Fairchild Camera & Instrument Corp. MOS Comparator circuit
US4633107A (en) * 1984-11-20 1986-12-30 Harris Corporation CMOS power-up reset circuit for gate arrays and standard cells
JPS63266921A (en) * 1987-04-23 1988-11-04 Nec Ic Microcomput Syst Ltd Power-on reset signal generating circuit
US5008566A (en) * 1988-11-30 1991-04-16 Nec Corporation Power supply voltage drop detection circuit for use in EEPROM memory
US5323067A (en) * 1993-04-14 1994-06-21 National Semiconductor Corporation Self-disabling power-up detection circuit
JPH06296126A (en) * 1993-07-23 1994-10-21 Toshiba Corp Control pulse signal generating circuit
US5396115A (en) * 1993-10-26 1995-03-07 Texas Instruments Incorporated Current-sensing power-on reset circuit for integrated circuits
US5508649A (en) * 1994-07-21 1996-04-16 National Semiconductor Corporation Voltage level triggered ESD protection circuit
US6498523B1 (en) * 1995-10-19 2002-12-24 Compaq Information Technologies Group, L.P. Circuit for powering up a microprocessor
US7298185B2 (en) 2004-02-09 2007-11-20 Infineon Technologies Ag Circuit arrangement for production of a reset signal after a supply has fallen and risen again

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463270A (en) * 1980-07-24 1984-07-31 Fairchild Camera & Instrument Corp. MOS Comparator circuit
US4367422A (en) * 1980-10-01 1983-01-04 General Electric Company Power on restart circuit
US4633107A (en) * 1984-11-20 1986-12-30 Harris Corporation CMOS power-up reset circuit for gate arrays and standard cells
JPS63266921A (en) * 1987-04-23 1988-11-04 Nec Ic Microcomput Syst Ltd Power-on reset signal generating circuit
US5008566A (en) * 1988-11-30 1991-04-16 Nec Corporation Power supply voltage drop detection circuit for use in EEPROM memory
US5323067A (en) * 1993-04-14 1994-06-21 National Semiconductor Corporation Self-disabling power-up detection circuit
JPH06296126A (en) * 1993-07-23 1994-10-21 Toshiba Corp Control pulse signal generating circuit
US5396115A (en) * 1993-10-26 1995-03-07 Texas Instruments Incorporated Current-sensing power-on reset circuit for integrated circuits
US5508649A (en) * 1994-07-21 1996-04-16 National Semiconductor Corporation Voltage level triggered ESD protection circuit
US6498523B1 (en) * 1995-10-19 2002-12-24 Compaq Information Technologies Group, L.P. Circuit for powering up a microprocessor
US7298185B2 (en) 2004-02-09 2007-11-20 Infineon Technologies Ag Circuit arrangement for production of a reset signal after a supply has fallen and risen again

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