JPS5586223A - Logic circuit - Google Patents

Logic circuit

Info

Publication number
JPS5586223A
JPS5586223A JP16325878A JP16325878A JPS5586223A JP S5586223 A JPS5586223 A JP S5586223A JP 16325878 A JP16325878 A JP 16325878A JP 16325878 A JP16325878 A JP 16325878A JP S5586223 A JPS5586223 A JP S5586223A
Authority
JP
Japan
Prior art keywords
common
circuit
terminal
power supply
output 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.)
Granted
Application number
JP16325878A
Other languages
Japanese (ja)
Other versions
JPS6046894B2 (en
Inventor
Hiroshi Enomoto
Yasushi Yasuda
Hitoshi Omichi
Katsuharu Mitono
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 JP16325878A priority Critical patent/JPS6046894B2/en
Publication of JPS5586223A publication Critical patent/JPS5586223A/en
Publication of JPS6046894B2 publication Critical patent/JPS6046894B2/en
Expired 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
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • 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
    • H03K19/20—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits
    • H03K19/21—EXCLUSIVE-OR circuits, i.e. giving output if input signal exists at only one input; COINCIDENCE circuits, i.e. giving output only if all input signals are identical
    • H03K19/212—EXCLUSIVE-OR circuits, i.e. giving output if input signal exists at only one input; COINCIDENCE circuits, i.e. giving output only if all input signals are identical using bipolar transistors

Landscapes

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

Abstract

PURPOSE:To attain IC-implementation by using a small number of elements and also to simplify the designing of a circuit when connecting several unit circuits by connecting respective collectors to an output terminal and power supply in common while connecting respective emitters in common. CONSTITUTION:Between the base and emitter of transistor TrQ11 and an input terminal, diodes D10 and D11 are connected respectively and between the collector and base and power supply Vcc, resistances R10 and R11 are also connected to constitute a unit circuit. To connect unit circuits composed of TrQ11 and Q12 here, collectors of Trs Q11 and Q12 connected in common are connected to power supply Vcc by way of output terminal Y and resistance R10, and emitters are connected in common. As a result, when input terminals A and B are both held at ''1'' or ''0'', output terminal Y is at ''1'' and when either terminal A or B is at ''1'' and the other at ''0'', terminal Y is at ''0'', constituting an OR-ElSE circuit. Consequently, the designing of the circuit is simplified and the number of elements is reduced, thereby attaining easy IC-implementation.
JP16325878A 1978-12-25 1978-12-25 logic circuit Expired JPS6046894B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16325878A JPS6046894B2 (en) 1978-12-25 1978-12-25 logic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16325878A JPS6046894B2 (en) 1978-12-25 1978-12-25 logic circuit

Publications (2)

Publication Number Publication Date
JPS5586223A true JPS5586223A (en) 1980-06-28
JPS6046894B2 JPS6046894B2 (en) 1985-10-18

Family

ID=15770369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16325878A Expired JPS6046894B2 (en) 1978-12-25 1978-12-25 logic circuit

Country Status (1)

Country Link
JP (1) JPS6046894B2 (en)

Also Published As

Publication number Publication date
JPS6046894B2 (en) 1985-10-18

Similar Documents

Publication Publication Date Title
JPS6462016A (en) Output buffer circuit
JPS5586223A (en) Logic circuit
EP0196616A3 (en) Logic circuit
JPS5616225A (en) Input selection circuit for microcomputer
JPS561769A (en) Constant current circuit
JPS566537A (en) Input circuit
JPS555575A (en) Logic circuit
JPS5487160A (en) Logic circuit
JPS5526790A (en) Emitter follower circuit
JPS579133A (en) Semiconductor logical circuit device
JPS5534771A (en) Constant voltage circuit
JPS5684034A (en) Logic circuit
JPS54128656A (en) Flip flop circuit of current selection type
JPS55107312A (en) Current mirror circuit
JPS5744336A (en) Logical circuit
JPS56123124A (en) Interface circuit
JPS5769932A (en) Current switching type logical circuit
JPS5792909A (en) Power amplifying circuit
JPS6451824A (en) Transistor logic circuit
JPS57133726A (en) Exclusive nor circuit
JPS5357723A (en) Interface circuit
JPS5673928A (en) Pulse circuit
JPS5558608A (en) Current miller output circuit
JPS54108563A (en) Switching circuit
JPS6425604A (en) Semiconductor output circuit