JPS5592040A - Ttl gate circuit - Google Patents

Ttl gate circuit

Info

Publication number
JPS5592040A
JPS5592040A JP16506078A JP16506078A JPS5592040A JP S5592040 A JPS5592040 A JP S5592040A JP 16506078 A JP16506078 A JP 16506078A JP 16506078 A JP16506078 A JP 16506078A JP S5592040 A JPS5592040 A JP S5592040A
Authority
JP
Japan
Prior art keywords
pull
vcc
power source
trq7
base
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
JP16506078A
Other languages
Japanese (ja)
Inventor
Osamu Oba
Norikuni Azuma
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16506078A priority Critical patent/JPS5592040A/en
Publication of JPS5592040A publication Critical patent/JPS5592040A/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
    • H03K19/088—Transistor-transistor logic

Landscapes

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

Abstract

PURPOSE:To make it possible to obtain a high-level output voltage over a prescribed value by separating a pull-up circuit and a pull-down circuit from the input terminal and by operating them independently. CONSTITUTION:Transistor TrQ7 and Q3 are connected in series between power source +VCC and the earth, and signals are supplied to their gates. TrQ3 is emitter-grounded, and the base is connected to the earth through a resistance, etc., and is connected to power source +VCC through TrQ2, and therefore, the pull- down circuit receives one divided input signal IN to turn on and off TrQ3. Meanwhile, TrQ7 has the collector connected to power source +VCC, and the base is connected to power source +VCC through resistance R5, and the base is grounded through TrQ6, and therefore, the pull-up circuit receives the other divided input signal IN to turn on and of TrQ7. As the result, pull-up and pull-down circuits can be operated independently to obtain a high-level output voltage over a prescribed value.
JP16506078A 1978-12-29 1978-12-29 Ttl gate circuit Pending JPS5592040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16506078A JPS5592040A (en) 1978-12-29 1978-12-29 Ttl gate circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16506078A JPS5592040A (en) 1978-12-29 1978-12-29 Ttl gate circuit

Publications (1)

Publication Number Publication Date
JPS5592040A true JPS5592040A (en) 1980-07-12

Family

ID=15805081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16506078A Pending JPS5592040A (en) 1978-12-29 1978-12-29 Ttl gate circuit

Country Status (1)

Country Link
JP (1) JPS5592040A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189564A2 (en) * 1985-01-31 1986-08-06 Texas Instruments Incorporated High to low transition speed up circuit for TTL-type gates
US4703202A (en) * 1984-02-13 1987-10-27 Fujitsu Limited Two-stage gate circuit providing inverted and non-inverted outputs
US5034631A (en) * 1989-02-24 1991-07-23 Sgs-Thomson Microelectronics S.A. TTL compatible output circuit with a high switching speed
US5512847A (en) * 1983-01-31 1996-04-30 Hitachi, Ltd. BiCMOS tri-state output driver
JP2006083857A (en) * 2004-09-15 2006-03-30 General Electric Co <Ge> High-thrust gas turbine engine including improved core system
KR100843540B1 (en) 2006-08-04 2008-07-03 백종현 Turbine for generating mechanical energy

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493288A (en) * 1972-03-30 1974-01-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493288A (en) * 1972-03-30 1974-01-12

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512847A (en) * 1983-01-31 1996-04-30 Hitachi, Ltd. BiCMOS tri-state output driver
US4703202A (en) * 1984-02-13 1987-10-27 Fujitsu Limited Two-stage gate circuit providing inverted and non-inverted outputs
EP0189564A2 (en) * 1985-01-31 1986-08-06 Texas Instruments Incorporated High to low transition speed up circuit for TTL-type gates
US5034631A (en) * 1989-02-24 1991-07-23 Sgs-Thomson Microelectronics S.A. TTL compatible output circuit with a high switching speed
JP2006083857A (en) * 2004-09-15 2006-03-30 General Electric Co <Ge> High-thrust gas turbine engine including improved core system
KR100843540B1 (en) 2006-08-04 2008-07-03 백종현 Turbine for generating mechanical energy

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