JPS56112125A - Logical circuit - Google Patents

Logical circuit

Info

Publication number
JPS56112125A
JPS56112125A JP1565580A JP1565580A JPS56112125A JP S56112125 A JPS56112125 A JP S56112125A JP 1565580 A JP1565580 A JP 1565580A JP 1565580 A JP1565580 A JP 1565580A JP S56112125 A JPS56112125 A JP S56112125A
Authority
JP
Japan
Prior art keywords
output
mosfets
input
case
electric potential
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
JP1565580A
Other languages
Japanese (ja)
Other versions
JPH0127612B2 (en
Inventor
Takashi Umezawa
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 JP1565580A priority Critical patent/JPS56112125A/en
Publication of JPS56112125A publication Critical patent/JPS56112125A/en
Publication of JPH0127612B2 publication Critical patent/JPH0127612B2/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
    • H03K19/20—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
    • H03K19/215—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 field-effect 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 reduce a loss of the effective area by the coupling line nd raise the integration degree, by connecting in series plural logical circuits in which the series connectors of plural transistors have been connected in parallel, and obtaining an exclusive ''or'' output. CONSTITUTION:In case when the input is a logical level and (A1, A2, A3) (B1, B2, B3) (0, 0, 0), the MOSFETs 7, 8, 15, 16, 23, 24 conduct, the low electric potential VL is transferred to the output C0, and in case when the input is (A1, A2, A3) (B1, B2, B3) (1, 1, 1), the MOSFETs 5, 6, 13, 14, 21, 22 conduct, and the low electric potential VL is transferred to the output C0'. On the other hand, in case when (A1, A2, A3) and (B1, B2, B3) in the input are not , at least one pair of the MOSFETs 1 and 2, 3, and 4, 9 and 10, 11 and 12, 17 and 18, 19 and 20 becomes a conducting state at the same time, and there exists a bus to the high electric potential VH, therefore, a logical level 1 is generated in the output C0'.
JP1565580A 1980-02-12 1980-02-12 Logical circuit Granted JPS56112125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1565580A JPS56112125A (en) 1980-02-12 1980-02-12 Logical circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1565580A JPS56112125A (en) 1980-02-12 1980-02-12 Logical circuit

Publications (2)

Publication Number Publication Date
JPS56112125A true JPS56112125A (en) 1981-09-04
JPH0127612B2 JPH0127612B2 (en) 1989-05-30

Family

ID=11894730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1565580A Granted JPS56112125A (en) 1980-02-12 1980-02-12 Logical circuit

Country Status (1)

Country Link
JP (1) JPS56112125A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085762A2 (en) * 1981-12-21 1983-08-17 International Business Machines Corporation Logic parity circuit
JPS62293426A (en) * 1986-06-12 1987-12-21 Matsushita Electric Ind Co Ltd Coincidence detecting circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085762A2 (en) * 1981-12-21 1983-08-17 International Business Machines Corporation Logic parity circuit
EP0085762A3 (en) * 1981-12-21 1986-03-19 International Business Machines Corporation Logic parity circuit
JPS62293426A (en) * 1986-06-12 1987-12-21 Matsushita Electric Ind Co Ltd Coincidence detecting circuit

Also Published As

Publication number Publication date
JPH0127612B2 (en) 1989-05-30

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