JPS56115038A - Logic circuit - Google Patents

Logic circuit

Info

Publication number
JPS56115038A
JPS56115038A JP1874980A JP1874980A JPS56115038A JP S56115038 A JPS56115038 A JP S56115038A JP 1874980 A JP1874980 A JP 1874980A JP 1874980 A JP1874980 A JP 1874980A JP S56115038 A JPS56115038 A JP S56115038A
Authority
JP
Japan
Prior art keywords
level
output
turns
turned
resistances
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
JP1874980A
Other languages
Japanese (ja)
Other versions
JPH0116058B2 (en
Inventor
Toshio Nakajima
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 JP1874980A priority Critical patent/JPS56115038A/en
Publication of JPS56115038A publication Critical patent/JPS56115038A/en
Publication of JPH0116058B2 publication Critical patent/JPH0116058B2/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
    • H03K19/01—Modifications for accelerating switching
    • H03K19/017—Modifications for accelerating switching in field-effect transistor circuits
    • H03K19/01707—Modifications for accelerating switching in field-effect transistor circuits in asynchronous circuits
    • H03K19/01721—Modifications for accelerating switching in field-effect transistor circuits in asynchronous circuits by means of a pull-up or down element

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 realize a low-voltage operation, by installing a load element in parallel to the load means to give a control to the load element in accordance with the output of a logic circuit and thus eliminating the effect of the leak component of a formed transistor. CONSTITUTION:When the set signal of the input terminal 24 is at the GND level, the P type transistor TR30 and N type transistor TR29 are turned on and off, respectively. Thus the output 25 turns to the +V level, and the output of the inverter 33 turns to the GND level. As a result, the P type TR31 is turned on. In this case, the output 25 is fixed at the +V level by the TR31 although the leak resistances R36 and R37 shown by the broken lines 36, 37 exist. Then the set signal of the terminal 24 turns to the +V leve with the TR29 and 30 turned on and off each. Under such conditions, the +V level is supplied to the logic TR36 to turn on it. In such state, the division level decided by the resistance ratio among TR31, 26 and 29 each is applied to the potential of the output 25. In this case, a steady level is kept for the output 25 if the sum value of resistances R36 and R37 is higher than the prescribed value.
JP1874980A 1980-02-18 1980-02-18 Logic circuit Granted JPS56115038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1874980A JPS56115038A (en) 1980-02-18 1980-02-18 Logic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1874980A JPS56115038A (en) 1980-02-18 1980-02-18 Logic circuit

Publications (2)

Publication Number Publication Date
JPS56115038A true JPS56115038A (en) 1981-09-10
JPH0116058B2 JPH0116058B2 (en) 1989-03-22

Family

ID=11980291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1874980A Granted JPS56115038A (en) 1980-02-18 1980-02-18 Logic circuit

Country Status (1)

Country Link
JP (1) JPS56115038A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5974733A (en) * 1982-10-21 1984-04-27 Toshiba Corp Decoder and encoder circuit
JPS60114029A (en) * 1983-11-21 1985-06-20 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Differential logic circuit
JPS60180330A (en) * 1984-02-28 1985-09-14 Nec Corp Cmos ratio circuit and its using method
US4613772A (en) * 1984-04-11 1986-09-23 Harris Corporation Current compensation for logic gates
JPS625723A (en) * 1985-02-07 1987-01-12 Hitachi Ltd Semiconductor device
JP2009014196A (en) * 2006-12-28 2009-01-22 Harmonic Drive Syst Ind Co Ltd Nonexcitation-operated electromagnetic brake

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5974733A (en) * 1982-10-21 1984-04-27 Toshiba Corp Decoder and encoder circuit
JPH0436486B2 (en) * 1982-10-21 1992-06-16 Tokyo Shibaura Electric Co
JPS60114029A (en) * 1983-11-21 1985-06-20 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Differential logic circuit
JPS60180330A (en) * 1984-02-28 1985-09-14 Nec Corp Cmos ratio circuit and its using method
US4613772A (en) * 1984-04-11 1986-09-23 Harris Corporation Current compensation for logic gates
JPS625723A (en) * 1985-02-07 1987-01-12 Hitachi Ltd Semiconductor device
JP2009014196A (en) * 2006-12-28 2009-01-22 Harmonic Drive Syst Ind Co Ltd Nonexcitation-operated electromagnetic brake

Also Published As

Publication number Publication date
JPH0116058B2 (en) 1989-03-22

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