JPS5546681A - Current switching type logic circuit - Google Patents

Current switching type logic circuit

Info

Publication number
JPS5546681A
JPS5546681A JP12088478A JP12088478A JPS5546681A JP S5546681 A JPS5546681 A JP S5546681A JP 12088478 A JP12088478 A JP 12088478A JP 12088478 A JP12088478 A JP 12088478A JP S5546681 A JPS5546681 A JP S5546681A
Authority
JP
Japan
Prior art keywords
current
source
logical amplitude
held
terminal
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
JP12088478A
Other languages
Japanese (ja)
Inventor
Takamasa Suzuki
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 JP12088478A priority Critical patent/JPS5546681A/en
Publication of JPS5546681A publication Critical patent/JPS5546681A/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 make it possible to adjust logical amplitude by obtaining the sum of a current-source current and control current with a control terminal held at a high level or only the current-source current at a low level. CONSTITUTION:When control terminal 14 held at a high level, a high bias from bias circuit 17 of current-source circuit part 15 is applied to the base of transistor TrQ3, which conducts a load current, the sum of a current from current source 4 and a control current, thereby increasing logical amplitude. When terminal 14 is held at a low level or open, on the other hand, circuit 17 applies a low bias to the base of TrQ3, which puts in an OFF state, so that the logical amplitude will be adjusted only by the value of the current of current source 4 to normal one. Consequently, changing the state of terminal 14 attains adjustments of the logical amplitude.
JP12088478A 1978-09-29 1978-09-29 Current switching type logic circuit Pending JPS5546681A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12088478A JPS5546681A (en) 1978-09-29 1978-09-29 Current switching type logic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12088478A JPS5546681A (en) 1978-09-29 1978-09-29 Current switching type logic circuit

Publications (1)

Publication Number Publication Date
JPS5546681A true JPS5546681A (en) 1980-04-01

Family

ID=14797348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12088478A Pending JPS5546681A (en) 1978-09-29 1978-09-29 Current switching type logic circuit

Country Status (1)

Country Link
JP (1) JPS5546681A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5840014A (en) * 1981-08-31 1983-03-08 亘　重信 Artificial cultivation of mushroom
JPS5853228A (en) * 1981-09-25 1983-03-29 Nec Corp Semiconductor integrated circuit device
EP0082403A2 (en) * 1981-12-21 1983-06-29 International Business Machines Corporation Transistorizd read/write amplifier for a magnetic storage
US4517476A (en) * 1982-04-26 1985-05-14 Siemens Aktiengesellschaft ECL Gate having emitter bias current switched by input signal
JPH05300003A (en) * 1992-04-21 1993-11-12 Mitsubishi Electric Corp Semiconductor device
JPH06338780A (en) * 1993-05-26 1994-12-06 Nec Corp Ecl type logic circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS495258A (en) * 1972-05-01 1974-01-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS495258A (en) * 1972-05-01 1974-01-17

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5840014A (en) * 1981-08-31 1983-03-08 亘　重信 Artificial cultivation of mushroom
JPH0158927B2 (en) * 1981-08-31 1989-12-14 Watari Shigenobu
JPS5853228A (en) * 1981-09-25 1983-03-29 Nec Corp Semiconductor integrated circuit device
EP0082403A2 (en) * 1981-12-21 1983-06-29 International Business Machines Corporation Transistorizd read/write amplifier for a magnetic storage
US4517476A (en) * 1982-04-26 1985-05-14 Siemens Aktiengesellschaft ECL Gate having emitter bias current switched by input signal
JPH05300003A (en) * 1992-04-21 1993-11-12 Mitsubishi Electric Corp Semiconductor device
JPH06338780A (en) * 1993-05-26 1994-12-06 Nec Corp Ecl type logic circuit

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