JPS56123128A - Logic circuit - Google Patents

Logic circuit

Info

Publication number
JPS56123128A
JPS56123128A JP2695480A JP2695480A JPS56123128A JP S56123128 A JPS56123128 A JP S56123128A JP 2695480 A JP2695480 A JP 2695480A JP 2695480 A JP2695480 A JP 2695480A JP S56123128 A JPS56123128 A JP S56123128A
Authority
JP
Japan
Prior art keywords
transistor
constant voltage
vbe
fluctuations
input
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
JP2695480A
Other languages
Japanese (ja)
Other versions
JPH0331014B2 (en
Inventor
Yoji Hirano
Ryosuke Takeyoshi
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
NEC Engineering Ltd
Original Assignee
NEC Corp
NEC Engineering Ltd
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, NEC Engineering Ltd, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2695480A priority Critical patent/JPS56123128A/en
Publication of JPS56123128A publication Critical patent/JPS56123128A/en
Publication of JPH0331014B2 publication Critical patent/JPH0331014B2/ja
Granted 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
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/08—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices
    • H03K19/082—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using bipolar transistors
    • H03K19/086—Emitter coupled logic

Landscapes

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

Abstract

PURPOSE:To enable high-speed operation by connecting a transistor, applied with a constant voltage at its base, in series to the input transistor of a current switching type logic circuit. CONSTITUTION:To collectors of input transistors T1-Tn connected in parallel while their bases are used as input terminals, constant voltage transistor TV connected to a constant voltage source at its base is connected. At this time, fluctuations of VBE of constant voltage transistor TV are nearly equal to those of VBE when input transistors T1-Tn are turned off and on. Therefore, fluctuations of VBE of transistor TV and fluctuations of collector potential of transistors T1-Tn are approximately a half the output logical amplitude and the Miller effect is reduced, so that switching characteristics will be improved.
JP2695480A 1980-03-04 1980-03-04 Logic circuit Granted JPS56123128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2695480A JPS56123128A (en) 1980-03-04 1980-03-04 Logic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2695480A JPS56123128A (en) 1980-03-04 1980-03-04 Logic circuit

Publications (2)

Publication Number Publication Date
JPS56123128A true JPS56123128A (en) 1981-09-28
JPH0331014B2 JPH0331014B2 (en) 1991-05-02

Family

ID=12207541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2695480A Granted JPS56123128A (en) 1980-03-04 1980-03-04 Logic circuit

Country Status (1)

Country Link
JP (1) JPS56123128A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100332847B1 (en) * 1993-06-16 2002-11-13 코닌클리케 필립스 일렉트로닉스 엔.브이. Integrated logic circuit with single-ended input logic gate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54109363A (en) * 1978-02-15 1979-08-27 Nec Corp Gate circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54109363A (en) * 1978-02-15 1979-08-27 Nec Corp Gate circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100332847B1 (en) * 1993-06-16 2002-11-13 코닌클리케 필립스 일렉트로닉스 엔.브이. Integrated logic circuit with single-ended input logic gate

Also Published As

Publication number Publication date
JPH0331014B2 (en) 1991-05-02

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