JPS54112134A - Logical operation circuit - Google Patents

Logical operation circuit

Info

Publication number
JPS54112134A
JPS54112134A JP2006278A JP2006278A JPS54112134A JP S54112134 A JPS54112134 A JP S54112134A JP 2006278 A JP2006278 A JP 2006278A JP 2006278 A JP2006278 A JP 2006278A JP S54112134 A JPS54112134 A JP S54112134A
Authority
JP
Japan
Prior art keywords
carry
output
input
circuit
add
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
JP2006278A
Other languages
Japanese (ja)
Other versions
JPS6152493B2 (en
Inventor
Takashi Sakao
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2006278A priority Critical patent/JPS54112134A/en
Publication of JPS54112134A publication Critical patent/JPS54112134A/en
Publication of JPS6152493B2 publication Critical patent/JPS6152493B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To make is possible to simplify the constitution of a series-parallel logical operation circuit on a ripple carry system, by making use of a carry input even at the time of logical operation execution.
CONSTITUTION: In figure (a) as the constitution example of a unit cell executing ADD and AND operations, operation output 0 with operation control input CAND made "0" at an ADD operation time becomes the addition result among operation inputs A and B, and carry input Ci, and carry output CO becomes the addition carry among A and B, and Ci. At operation output 0, the AND output between operation inputs A and B appears and at carry output CO, "1" appears. The truth table of this circuit is shown in figure (b) and in the figure of circuit (a), a half adder NOR gate uses three-input gate 21 and its operation control input is connected, to that ADD and AND operation circuits can both be obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP2006278A 1978-02-22 1978-02-22 Logical operation circuit Granted JPS54112134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006278A JPS54112134A (en) 1978-02-22 1978-02-22 Logical operation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006278A JPS54112134A (en) 1978-02-22 1978-02-22 Logical operation circuit

Publications (2)

Publication Number Publication Date
JPS54112134A true JPS54112134A (en) 1979-09-01
JPS6152493B2 JPS6152493B2 (en) 1986-11-13

Family

ID=12016589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006278A Granted JPS54112134A (en) 1978-02-22 1978-02-22 Logical operation circuit

Country Status (1)

Country Link
JP (1) JPS54112134A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57501404A (en) * 1980-09-08 1982-08-05

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63196403A (en) * 1987-02-09 1988-08-15 Hakko Denki Seisakusho:Kk Braking device for roller conveyer
JPH05184130A (en) * 1991-12-27 1993-07-23 Isuzu Motors Ltd Eddy current type reduction gearing device
JPH08208011A (en) * 1995-11-14 1996-08-13 Hakko Denki Kk Brake roller of roller conveyer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57501404A (en) * 1980-09-08 1982-08-05

Also Published As

Publication number Publication date
JPS6152493B2 (en) 1986-11-13

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