JPS561545A - Input/output buffer cell for semiconductor integrated circuit - Google Patents

Input/output buffer cell for semiconductor integrated circuit

Info

Publication number
JPS561545A
JPS561545A JP7586479A JP7586479A JPS561545A JP S561545 A JPS561545 A JP S561545A JP 7586479 A JP7586479 A JP 7586479A JP 7586479 A JP7586479 A JP 7586479A JP S561545 A JPS561545 A JP S561545A
Authority
JP
Japan
Prior art keywords
terminal
pad
input
buffer cell
external
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.)
Granted
Application number
JP7586479A
Other languages
Japanese (ja)
Other versions
JPS6362898B2 (en
Inventor
Kazuhiro Sakashita
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7586479A priority Critical patent/JPS561545A/en
Publication of JPS561545A publication Critical patent/JPS561545A/en
Publication of JPS6362898B2 publication Critical patent/JPS6362898B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
    • H01L27/10—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration
    • H01L27/118—Masterslice integrated circuits
    • H01L27/11898—Input and output buffer/driver structures

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Logic Circuits (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Design And Manufacture Of Integrated Circuits (AREA)

Abstract

PURPOSE:To simplify the wiring out of a semiconductor integrated circuit by providing beforehand universal wires in a buffer cell and effectively utilize buffer cell and external pad by using input/output buffer amplifiers as other external pads. CONSTITUTION:The pad terminal 108 of a buffer circuit 100a is connected to the terminal 109 of an input buffer amplifier. In case that an external pad 101a is exclusively used for an input, when the terminal 107 of unused output buffer amplifier 104 is connected to a feedback terminal 112 and a logic gate terminal 110 is connected to the feedback terminal 110 of a buffer cell 100b and the pad terminals 107, 108, a pad 101b can be exclusively used for an output, and unused amplifier 102 can be used for other object by connecting the feedback terminal 113 to the input terminal 109. When the pad terminal 108 of the cell 100b is connected to the terminal 109 or the terminal 113, the pad 101b may become bidirectional external pad. When the universal feedback wire is provided in the input/output buffer cell in this manner, the wire in the external circuit can be simplified to effectively utilize the external pad and the buffer cell with master slice type IC.
JP7586479A 1979-06-15 1979-06-15 Input/output buffer cell for semiconductor integrated circuit Granted JPS561545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7586479A JPS561545A (en) 1979-06-15 1979-06-15 Input/output buffer cell for semiconductor integrated circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7586479A JPS561545A (en) 1979-06-15 1979-06-15 Input/output buffer cell for semiconductor integrated circuit

Publications (2)

Publication Number Publication Date
JPS561545A true JPS561545A (en) 1981-01-09
JPS6362898B2 JPS6362898B2 (en) 1988-12-05

Family

ID=13588535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7586479A Granted JPS561545A (en) 1979-06-15 1979-06-15 Input/output buffer cell for semiconductor integrated circuit

Country Status (1)

Country Link
JP (1) JPS561545A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5245755A (en) * 1975-10-07 1977-04-11 Daikin Ind Ltd Method for confirming correct quantity of cooling medium in refrigerato r unit
JPS57160144A (en) * 1981-03-27 1982-10-02 Fujitsu Ltd Semiconductor integrated circuit device
JPS57211248A (en) * 1981-06-22 1982-12-25 Hitachi Ltd Semiconductor integrated circuit device
JPS58197746A (en) * 1982-05-14 1983-11-17 Hitachi Ltd Semiconductor integrated circuit device
JPS6369336U (en) * 1986-10-22 1988-05-10
JPH0372655A (en) * 1990-08-03 1991-03-27 Hitachi Ltd Semiconductor integrated circuit device
CN104639144A (en) * 2013-11-08 2015-05-20 上海华虹集成电路有限责任公司 Bidirectional analogue buffer circuit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS492871A (en) * 1972-04-22 1974-01-11
JPS492798A (en) * 1972-04-26 1974-01-11
JPS5493376A (en) * 1977-12-30 1979-07-24 Fujitsu Ltd Semiconductor integrated circuit device
JPS5493344A (en) * 1977-12-30 1979-07-24 Fujitsu Ltd Semiconductor integrated circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS492871A (en) * 1972-04-22 1974-01-11
JPS492798A (en) * 1972-04-26 1974-01-11
JPS5493376A (en) * 1977-12-30 1979-07-24 Fujitsu Ltd Semiconductor integrated circuit device
JPS5493344A (en) * 1977-12-30 1979-07-24 Fujitsu Ltd Semiconductor integrated circuit

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5245755A (en) * 1975-10-07 1977-04-11 Daikin Ind Ltd Method for confirming correct quantity of cooling medium in refrigerato r unit
JPS57160144A (en) * 1981-03-27 1982-10-02 Fujitsu Ltd Semiconductor integrated circuit device
JPS6355781B2 (en) * 1981-03-27 1988-11-04 Fujitsu Ltd
JPS57211248A (en) * 1981-06-22 1982-12-25 Hitachi Ltd Semiconductor integrated circuit device
JPH0440866B2 (en) * 1981-06-22 1992-07-06 Hitachi Seisakusho Kk
JPS58197746A (en) * 1982-05-14 1983-11-17 Hitachi Ltd Semiconductor integrated circuit device
JPH058576B2 (en) * 1982-05-14 1993-02-02 Hitachi Ltd
JPS6369336U (en) * 1986-10-22 1988-05-10
JPH0372655A (en) * 1990-08-03 1991-03-27 Hitachi Ltd Semiconductor integrated circuit device
JPH0586067B2 (en) * 1990-08-03 1993-12-09 Hitachi Ltd
CN104639144A (en) * 2013-11-08 2015-05-20 上海华虹集成电路有限责任公司 Bidirectional analogue buffer circuit
CN104639144B (en) * 2013-11-08 2018-02-13 上海华虹集成电路有限责任公司 Bidirectional analog buffer circuits

Also Published As

Publication number Publication date
JPS6362898B2 (en) 1988-12-05

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