JPS5650629A - Complementary mos integrated circuit - Google Patents

Complementary mos integrated circuit

Info

Publication number
JPS5650629A
JPS5650629A JP12530279A JP12530279A JPS5650629A JP S5650629 A JPS5650629 A JP S5650629A JP 12530279 A JP12530279 A JP 12530279A JP 12530279 A JP12530279 A JP 12530279A JP S5650629 A JPS5650629 A JP S5650629A
Authority
JP
Japan
Prior art keywords
vdd
vin
power supply
case
integrated circuit
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
JP12530279A
Other languages
Japanese (ja)
Inventor
Riichi Uetsuki
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 JP12530279A priority Critical patent/JPS5650629A/en
Publication of JPS5650629A publication Critical patent/JPS5650629A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/003—Modifications for increasing the reliability for protection
    • H03K19/00315—Modifications for increasing the reliability for protection in field-effect transistor circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Electronic Switches (AREA)
  • Logic Circuits (AREA)

Abstract

PURPOSE:To prevent the overvoltage for the device, by producing the switch circuit control signal through a comparison between the input voltage and the power supply voltage and then securing a switch action by the control signal. CONSTITUTION:A comparison is given through the comparator 7 between the power supply voltage VDD and the input voltage Vin which is obtained via the input protecting circuit 5 and to be applied to the device 1. And in the case of Vin<=VDD, the transistor 31 of the switch circuit 8 has an on-action to apply the voltage VDD to the device 1. In case the input voltage is overvoltage, i.e., in the case of Vin> VDD, the output signal is obtained through the comparator 7. Thus te transistor 31 is turned off, and then the power supply circuit is cut off to the device 1 to given on-control to the device 1. In this way, the device can be protected by cutting off the overcurrent flowing between the VDD of the device can be protected by cutting off the overcurrent flowing between the VDD of the device 1 and the earth VSS.
JP12530279A 1979-10-01 1979-10-01 Complementary mos integrated circuit Pending JPS5650629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12530279A JPS5650629A (en) 1979-10-01 1979-10-01 Complementary mos integrated circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12530279A JPS5650629A (en) 1979-10-01 1979-10-01 Complementary mos integrated circuit

Publications (1)

Publication Number Publication Date
JPS5650629A true JPS5650629A (en) 1981-05-07

Family

ID=14906715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12530279A Pending JPS5650629A (en) 1979-10-01 1979-10-01 Complementary mos integrated circuit

Country Status (1)

Country Link
JP (1) JPS5650629A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0357111A2 (en) * 1988-08-02 1990-03-07 Philips Patentverwaltung GmbH Detection circuit for several voltage ranges
JPH05177397A (en) * 1991-12-27 1993-07-20 Shintoo:Kk Method and device for automatically compressing empty can
JPH0623327U (en) * 1992-08-25 1994-03-25 日本電気ホームエレクトロニクス株式会社 Electronic circuit failure diagnostic device
JPH10224201A (en) * 1997-02-03 1998-08-21 Fujitsu Ltd Semiconductor integration circuit device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0357111A2 (en) * 1988-08-02 1990-03-07 Philips Patentverwaltung GmbH Detection circuit for several voltage ranges
EP0357111A3 (en) * 1988-08-02 1990-10-31 Philips Patentverwaltung GmbH Detection circuit for several voltage ranges
JPH05177397A (en) * 1991-12-27 1993-07-20 Shintoo:Kk Method and device for automatically compressing empty can
JPH0623327U (en) * 1992-08-25 1994-03-25 日本電気ホームエレクトロニクス株式会社 Electronic circuit failure diagnostic device
JPH10224201A (en) * 1997-02-03 1998-08-21 Fujitsu Ltd Semiconductor integration circuit device

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