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JPS54158852A - Logic circuit - Google Patents

Logic circuit

Info

Publication number
JPS54158852A
JPS54158852A JP6806178A JP6806178A JPS54158852A JP S54158852 A JPS54158852 A JP S54158852A JP 6806178 A JP6806178 A JP 6806178A JP 6806178 A JP6806178 A JP 6806178A JP S54158852 A JPS54158852 A JP S54158852A
Authority
JP
Japan
Prior art keywords
signal input
circuit
signal output
groups
signal
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
JP6806178A
Other languages
Japanese (ja)
Other versions
JPS5833729B2 (en
Inventor
Yasunobu Inabe
Keisuke Kataoka
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP6806178A priority Critical patent/JPS5833729B2/en
Publication of JPS54158852A publication Critical patent/JPS54158852A/en
Publication of JPS5833729B2 publication Critical patent/JPS5833729B2/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
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/17704—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form the logic functions being realised by the interconnection of rows and columns
    • H03K19/17708—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form the logic functions being realised by the interconnection of rows and columns using an AND matrix followed by an OR matrix, i.e. programmable logic arrays

Landscapes

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

Abstract

PURPOSE:To make it possible to increase integration density with circuit components reduced in number by dividing signal input lines into two groups, by arranging integrally logical functions at cross points of respective signal input lines and then by extracting signal outputs combined in common. CONSTITUTION:The circuit consists of signal input terminal Al(l=1 to 7) signal output terminal X, 1st signal input groups N11 to N14, 2nd signal input line groups N21 to N23, signal output line N31, inverters G11 to G14, transistor Trm (m=1 to 6), and resistance R7. Although the logical function of the above-mentioned circuit is the same as before, the number of circuit component elements is smaller. Namely, the function of each Trm is equivalent to the sum of functions of diodes distributed on eah conventional signal output line and collectors of respective Trs can be combined commonly into one signal output line N21, so that the need of a circuit element equivalent to a conventional OR gate will be eliminated.
JP6806178A 1978-06-06 1978-06-06 logic circuit Expired JPS5833729B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6806178A JPS5833729B2 (en) 1978-06-06 1978-06-06 logic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6806178A JPS5833729B2 (en) 1978-06-06 1978-06-06 logic circuit

Publications (2)

Publication Number Publication Date
JPS54158852A true JPS54158852A (en) 1979-12-15
JPS5833729B2 JPS5833729B2 (en) 1983-07-21

Family

ID=13362884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6806178A Expired JPS5833729B2 (en) 1978-06-06 1978-06-06 logic circuit

Country Status (1)

Country Link
JP (1) JPS5833729B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0132071A2 (en) * 1983-07-15 1985-01-23 Northern Telecom Limited Programmable logic array

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60187328U (en) * 1984-05-23 1985-12-12 マツダ株式会社 Engine cooling structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0132071A2 (en) * 1983-07-15 1985-01-23 Northern Telecom Limited Programmable logic array

Also Published As

Publication number Publication date
JPS5833729B2 (en) 1983-07-21

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