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JPS55154829A - Logic circuit - Google Patents

Logic circuit

Info

Publication number
JPS55154829A
JPS55154829A JP6299779A JP6299779A JPS55154829A JP S55154829 A JPS55154829 A JP S55154829A JP 6299779 A JP6299779 A JP 6299779A JP 6299779 A JP6299779 A JP 6299779A JP S55154829 A JPS55154829 A JP S55154829A
Authority
JP
Japan
Prior art keywords
circuit
output
circuits
true
complement
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
JP6299779A
Other languages
Japanese (ja)
Inventor
Hiroetsu Yamazaki
Akira Aso
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
Original Assignee
NEC Corp
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, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6299779A priority Critical patent/JPS55154829A/en
Publication of JPS55154829A publication Critical patent/JPS55154829A/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
    • H03K19/02—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 obtain a decoder circuit of current change-over circuit structure available for high-speed operation by leading each of a fixed number of input signals to one corresponding logic stage and then by supplying the true number and complement output of this logic stage to a group of current change-over type logic circuits. CONSTITUTION:Signal lines 10 and 11 to which input signals A and B are input are connected to gate circuits G7 and G8, and G9 and G10 and true outputs of circuits G7 and G9 are connected to output line 12 while the complement output of circuit G7 and the true output of circuit 10 are led to output line 13. Further, the true output of circuit G8 and the complement output of circuit G9 are connected to output line 14 and complement outputs of circuits G8 and G10 are further connected to output line 15 to generate logic outputs from output lines 12-15. Circuits G7 and G9, and G8 and G10 to which those signals A and B are input are made into a group of current change-over circuits consisting of transistors Q6-Q9 and current sources I3-I4 so as to enable a decoder circuit, composed of a current change-over circuit CML circuit, to operate at a high speed.
JP6299779A 1979-05-22 1979-05-22 Logic circuit Pending JPS55154829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6299779A JPS55154829A (en) 1979-05-22 1979-05-22 Logic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6299779A JPS55154829A (en) 1979-05-22 1979-05-22 Logic circuit

Publications (1)

Publication Number Publication Date
JPS55154829A true JPS55154829A (en) 1980-12-02

Family

ID=13216516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6299779A Pending JPS55154829A (en) 1979-05-22 1979-05-22 Logic circuit

Country Status (1)

Country Link
JP (1) JPS55154829A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5295135A (en) * 1976-02-06 1977-08-10 Nippon Telegr & Teleph Corp <Ntt> Semi-conductor logic circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5295135A (en) * 1976-02-06 1977-08-10 Nippon Telegr & Teleph Corp <Ntt> Semi-conductor logic circuit

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