JPS5723323A - Initial resetting circuit - Google Patents

Initial resetting circuit

Info

Publication number
JPS5723323A
JPS5723323A JP9772480A JP9772480A JPS5723323A JP S5723323 A JPS5723323 A JP S5723323A JP 9772480 A JP9772480 A JP 9772480A JP 9772480 A JP9772480 A JP 9772480A JP S5723323 A JPS5723323 A JP S5723323A
Authority
JP
Japan
Prior art keywords
vdd
vss2
turned
electric power
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
JP9772480A
Other languages
Japanese (ja)
Inventor
Kenshirou Arase
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP9772480A priority Critical patent/JPS5723323A/en
Publication of JPS5723323A publication Critical patent/JPS5723323A/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 make an external capacitor for forming a reset signal unnecessary, by utilizing an internal boosting circuit and forming a reset signal in case when an electric power supply is turned on, in an MOS type integrated circuit incorporating a boosting circuit of supply voltage. CONSTITUTION:A supply voltage VDD-VSS1 system is boosted by two times to a VDD-VSS2 system through a boosting circuit 8. In this case, when an electric power supply is turned on, a time is required to some extent before boosted voltage develops in the VDD-VSS2 system, and during this period, an n channel MOSFET2 is off. On the other hand, a p channel MOSFET1 turns on as soon as the electric power supply is turned on, and a reset signal of a low level appears in a terminal 7. When boosted voltage develops in the VDD-VSS2 system, MOSFETs 1, 2 both turn on, and when an on-resistance of the MOSFET1 is made larger than an on-resistance of the MOSFET2, a voltage level of the terminal 7 becomes a high level.
JP9772480A 1980-07-17 1980-07-17 Initial resetting circuit Pending JPS5723323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9772480A JPS5723323A (en) 1980-07-17 1980-07-17 Initial resetting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9772480A JPS5723323A (en) 1980-07-17 1980-07-17 Initial resetting circuit

Publications (1)

Publication Number Publication Date
JPS5723323A true JPS5723323A (en) 1982-02-06

Family

ID=14199829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9772480A Pending JPS5723323A (en) 1980-07-17 1980-07-17 Initial resetting circuit

Country Status (1)

Country Link
JP (1) JPS5723323A (en)

Similar Documents

Publication Publication Date Title
JPS5723323A (en) Initial resetting circuit
JPS5422557A (en) Constant current circuit
JPS5213649A (en) Device to control the power
JPS57112135A (en) Mos type analogue switch integrated circuit
JPS5498067A (en) Discharge lamp lighting device
JPS57189086A (en) Circuit for electronic timepiece
JPS57115030A (en) Power-on reset circuit
JPS55115730A (en) Switching circuit
JPS5437223A (en) All wave rectifying circuit
JPS56159716A (en) Direct-current electric power device
JPS5723318A (en) Comparator using programable unijunction transistor
JPS5284874A (en) Starting device for discharge lamp
JPS56160132A (en) Resetting circuit
JPS5572012A (en) Plunger solenoid driving circuit
JPS57175962A (en) Detecting and resetting circuit for voltage drop
JPS51118059A (en) Switching mode regulator circuit
JPS53129531A (en) Tablet-type terminal equipment
JPS5741034A (en) Resetting circuit
JPS57170625A (en) Transitor circuit
JPS5297642A (en) Malfunction prevention circuit
JPS5261442A (en) Driving system of magnetic memory device
JPS6430323A (en) Semiconductor integrated circuit device
JPS549536A (en) Magnetic bubble memory device
JPS5779457A (en) Voltage comparing circuit
JPS53132750A (en) Constant voltage circuit