JPS5672535A - Logical circuit - Google Patents

Logical circuit

Info

Publication number
JPS5672535A
JPS5672535A JP14983379A JP14983379A JPS5672535A JP S5672535 A JPS5672535 A JP S5672535A JP 14983379 A JP14983379 A JP 14983379A JP 14983379 A JP14983379 A JP 14983379A JP S5672535 A JPS5672535 A JP S5672535A
Authority
JP
Japan
Prior art keywords
transistor
input
input transistor
logical circuit
group
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
JP14983379A
Other languages
Japanese (ja)
Other versions
JPS6337979B2 (en
Inventor
Yoji Hirano
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 JP14983379A priority Critical patent/JPS5672535A/en
Publication of JPS5672535A publication Critical patent/JPS5672535A/en
Publication of JPS6337979B2 publication Critical patent/JPS6337979B2/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 reduce the capacity formed by the input transistor group, by connecting the transistor for applying the constant-voltage to the base, in series with the input transistor group. CONSTITUTION:The current switching logical circuit is constituted of the input transistor Q1, the input transistor group Q2-Q5, the constant-voltage transistor Q7 and the reference transistor Q6. And when one or more of the input transistor Q2-Q5 conduct, the potential of the terminal 11 is decided so that the transistor Q7 conducts. Also, when the transistors Q2-Q5 do not conduct, the transistor Q7 is cut off, and therefore the capacity of the collector becomes small, and the switching characteristic of the transistor Q1 is elevated.
JP14983379A 1979-11-19 1979-11-19 Logical circuit Granted JPS5672535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14983379A JPS5672535A (en) 1979-11-19 1979-11-19 Logical circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14983379A JPS5672535A (en) 1979-11-19 1979-11-19 Logical circuit

Publications (2)

Publication Number Publication Date
JPS5672535A true JPS5672535A (en) 1981-06-16
JPS6337979B2 JPS6337979B2 (en) 1988-07-27

Family

ID=15483653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14983379A Granted JPS5672535A (en) 1979-11-19 1979-11-19 Logical circuit

Country Status (1)

Country Link
JP (1) JPS5672535A (en)

Also Published As

Publication number Publication date
JPS6337979B2 (en) 1988-07-27

Similar Documents

Publication Publication Date Title
JPS5672535A (en) Logical circuit
JPS5426646A (en) Current miller circuit
JPS561767A (en) Gate circuit for thyristor
JPS55166342A (en) Minute potential difference comparing circuit
JPS53140906A (en) Direct current supplying circuit
JPS5313852A (en) Level conversion circuit
JPS548951A (en) Differential amplifying circuit
JPS5383569A (en) Switching circuit
JPS5223244A (en) Limiter circuit
JPS52129311A (en) Driving circuit of swtich matrix
JPS526458A (en) Integrated semi-conductor logicalcircuit
JPS5478964A (en) Selection circuit
JPS56166518A (en) Power supply circuit
JPS55166952A (en) Bistable circuit
JPS53102654A (en) Non-volatile flip flop circuit
JPS547556A (en) Minute current source circuit
JPS56143027A (en) Constant current circuit
JPS5753152A (en) Inverter circuit
JPS52149056A (en) Stability compensation method for emitter follower circuit
JPS5373342A (en) Switching circuit
JPS55166319A (en) Limiter circuit
JPS5251855A (en) Semiconductor relay equipment
JPS5428563A (en) Driving circuit for switching transistor
JPS55107333A (en) Switch circuit of bridge type
JPS52117543A (en) Transistor circuit