JPS574615A - Generating circuit of power-on reset signal - Google Patents

Generating circuit of power-on reset signal

Info

Publication number
JPS574615A
JPS574615A JP7814780A JP7814780A JPS574615A JP S574615 A JPS574615 A JP S574615A JP 7814780 A JP7814780 A JP 7814780A JP 7814780 A JP7814780 A JP 7814780A JP S574615 A JPS574615 A JP S574615A
Authority
JP
Japan
Prior art keywords
terminal
power
capacity
power supply
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
JP7814780A
Other languages
Japanese (ja)
Inventor
Takashi Senba
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7814780A priority Critical patent/JPS574615A/en
Publication of JPS574615A publication Critical patent/JPS574615A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
    • H03K17/223—Modifications for ensuring a predetermined initial state when the supply voltage has been applied in field-effect transistor switches

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To stabilize the pulse duration of a reset signal, by connecting the drain of an MOSFET to a power source, grounding the source via a capacitor and then applying a pulse to a gate before application of power supply. CONSTITUTION:The drain of an MOSFET15 is connected to a power supply terminal 11, and an end of the source is connected to the other end 13 of a capacity 14 with its one end grounded. Then, at least a pulse having a time width with which the capacity 14 can be perfectly discharged is applied to a clock input terminal 12 before application of power source for an integrated circuit or the like. Thus the electric charge is completely discharged for the capacity 14 to set the potential of an output terminal 13 at logic ''O''. After this and at a desired time after application of power supply, the consecutive clock pulses are applied to the terminal 12 to keep the potential of the terminal 13 at logic ''1''.
JP7814780A 1980-06-10 1980-06-10 Generating circuit of power-on reset signal Pending JPS574615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7814780A JPS574615A (en) 1980-06-10 1980-06-10 Generating circuit of power-on reset signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7814780A JPS574615A (en) 1980-06-10 1980-06-10 Generating circuit of power-on reset signal

Publications (1)

Publication Number Publication Date
JPS574615A true JPS574615A (en) 1982-01-11

Family

ID=13653780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7814780A Pending JPS574615A (en) 1980-06-10 1980-06-10 Generating circuit of power-on reset signal

Country Status (1)

Country Link
JP (1) JPS574615A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503344A (en) * 1982-04-09 1985-03-05 Honeywell Inc. Power up reset pulse generator
US5220081A (en) * 1991-06-28 1993-06-15 Mitsui Toatsu Chemicals, Inc. Process for preventing consolidation of p-dichlorobenzene

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503344A (en) * 1982-04-09 1985-03-05 Honeywell Inc. Power up reset pulse generator
US5220081A (en) * 1991-06-28 1993-06-15 Mitsui Toatsu Chemicals, Inc. Process for preventing consolidation of p-dichlorobenzene

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