JPS5717227A - Integrated circuit device - Google Patents

Integrated circuit device

Info

Publication number
JPS5717227A
JPS5717227A JP9064980A JP9064980A JPS5717227A JP S5717227 A JPS5717227 A JP S5717227A JP 9064980 A JP9064980 A JP 9064980A JP 9064980 A JP9064980 A JP 9064980A JP S5717227 A JPS5717227 A JP S5717227A
Authority
JP
Japan
Prior art keywords
power supply
vcc
terminal
voltage
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
JP9064980A
Other languages
Japanese (ja)
Inventor
Toshiaki Masuhara
Osamu Minato
Toshio Sasaki
Kazuo Yoshizaki
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 JP9064980A priority Critical patent/JPS5717227A/en
Publication of JPS5717227A publication Critical patent/JPS5717227A/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
    • H03K19/00369—Modifications for compensating variations of temperature, supply voltage or other physical parameters

Abstract

PURPOSE:To avoid latch-up, fluctuation in elements such as threshold voltage and mutual conductance, and defective elements, by disconnecting external power supply terminals from the power supply terminals of an integrated circuit at the excessive fluctuation of the power supply. CONSTITUTION:A reference voltage Vcc' proportional to a power supply voltage Vcc is applied to a terminal 4 of a control circuit 6 having a differential amplifier, a reference voltage VR is applied to a terminal 5 to control a gate voltage of a P channel MOS transistor 7 connected between a terminal 2 to which a power supply Vcc is applied and an entire circuit or a suitable circuit block 1 such as a terminal 2 to which the power supply voltage Vcc is applied, logical circuits, analog circuits and memory circuits. The entire region 8 is integrated on the same silicon substrate. When an excessive voltage is applied to the Vcc terminal 2 and Vcc'>VR is obtained, the MOS transistor switch 7 is nonconductive to disconnect the circuit block 1.
JP9064980A 1980-07-04 1980-07-04 Integrated circuit device Pending JPS5717227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9064980A JPS5717227A (en) 1980-07-04 1980-07-04 Integrated circuit device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9064980A JPS5717227A (en) 1980-07-04 1980-07-04 Integrated circuit device

Publications (1)

Publication Number Publication Date
JPS5717227A true JPS5717227A (en) 1982-01-28

Family

ID=14004353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9064980A Pending JPS5717227A (en) 1980-07-04 1980-07-04 Integrated circuit device

Country Status (1)

Country Link
JP (1) JPS5717227A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02215154A (en) * 1989-02-16 1990-08-28 Toshiba Corp Voltage control circuit
EP0848498A1 (en) * 1996-12-10 1998-06-17 Fujitsu Limited Output driver circuit in semiconductor device
JP4829880B2 (en) * 2004-06-03 2011-12-07 アルテラ コーポレイション Electrostatic discharge protection circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5010450A (en) * 1973-06-06 1975-02-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5010450A (en) * 1973-06-06 1975-02-03

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02215154A (en) * 1989-02-16 1990-08-28 Toshiba Corp Voltage control circuit
EP0848498A1 (en) * 1996-12-10 1998-06-17 Fujitsu Limited Output driver circuit in semiconductor device
US5936456A (en) * 1996-12-10 1999-08-10 Fujitsu Limited Output driver circuit in semiconductor device
JP4829880B2 (en) * 2004-06-03 2011-12-07 アルテラ コーポレイション Electrostatic discharge protection circuit

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