GB1337842A - Variable function transistor logic circuit - Google Patents

Variable function transistor logic circuit

Info

Publication number
GB1337842A
GB1337842A GB2398271A GB2398271A GB1337842A GB 1337842 A GB1337842 A GB 1337842A GB 2398271 A GB2398271 A GB 2398271A GB 2398271 A GB2398271 A GB 2398271A GB 1337842 A GB1337842 A GB 1337842A
Authority
GB
United Kingdom
Prior art keywords
nand
circuits
earth
gate
logic circuit
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.)
Expired
Application number
GB2398271A
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.)
Bull HN Information Systems Italia SpA
Original Assignee
Honeywell Information Systems Italia SpA
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 Honeywell Information Systems Italia SpA filed Critical Honeywell Information Systems Italia SpA
Publication of GB1337842A publication Critical patent/GB1337842A/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
    • H03K19/0175—Coupling arrangements; Interface arrangements
    • H03K19/0185—Coupling arrangements; Interface arrangements using field effect transistors only
    • H03K19/018557—Coupling arrangements; Impedance matching circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
    • H01L27/08—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind
    • H01L27/085—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only
    • H01L27/088—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
    • 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
    • H03K19/08—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices
    • H03K19/094—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using field-effect transistors
    • H03K19/0944—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using field-effect transistors using MOSFET or insulated gate field-effect transistors, i.e. IGFET
    • H03K19/09441—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using field-effect transistors using MOSFET or insulated gate field-effect transistors, i.e. IGFET of the same canal type
    • 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
    • H03K19/1733—Controllable logic circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Logic Circuits (AREA)
  • Design And Manufacture Of Integrated Circuits (AREA)

Abstract

1337842 FET logic circuits HONEYWELL INFORMATION SYSTEMS ITALIA SpA 19 April 1971 [12 March 1970] 23982/71 Heading H3T A variable-function logic circuit has field effect transistors 1, 2, 3 arranged to perform different logic functions (NAND or NOR) according to whether further F.E.T.'s 5, 6 are made conductive or not by a command signal E. If E holds F.E.T.'s 5, 6 off, then a series path exists from the supply V A through a load F.E.T. 4 and F.E.T.'s 3, 2, 1 to earth, so that if any of inputs A, B, C is low and its F.E.T. therefore non-conductive, the output E is high (+V A ) and a NAND function performed. If E turns on F.E.T.'s 5, 6, then F.E.T.'s 1, 2, 3 are effectively connected in parallel between U and earth. Thus if any of A, B, C is high to turn on its F.E.T. then output U goes to earth, and a NOR function performed. More transistors may be added (Fig. 8, not shown) to extend the number of inputs to the NAND/NOR gate. An exclusive -OR gate (Fig. 6, not shown) uses four of the Fig. 2 circuits, two of which are biased to act as NAND circuits and two as NOR circuits. Another exclusive-OR gate uses six NAND gates (Fig. 5, not shown). The load F.E.T. bias + V G is changed in accordance with E, to present the right impedance to the series and to the parallel circuits containing F.E.T.'s 1, 2, 3 in the NOR and NAND circuits respectively.
GB2398271A 1970-03-12 1971-04-19 Variable function transistor logic circuit Expired GB1337842A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2181370 1970-03-12

Publications (1)

Publication Number Publication Date
GB1337842A true GB1337842A (en) 1973-11-21

Family

ID=11187199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2398271A Expired GB1337842A (en) 1970-03-12 1971-04-19 Variable function transistor logic circuit

Country Status (3)

Country Link
DE (1) DE2109803C3 (en)
FR (1) FR2081890B1 (en)
GB (1) GB1337842A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808475A (en) * 1972-07-10 1974-04-30 Amdahl Corp Lsi chip construction and method
NL7612223A (en) * 1976-11-04 1978-05-08 Philips Nv INTEGRATED CIRCUIT.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100838A (en) * 1960-06-22 1963-08-13 Rca Corp Binary full adder utilizing integrated unipolar transistors
US3201574A (en) * 1960-10-07 1965-08-17 Rca Corp Flexible logic circuit

Also Published As

Publication number Publication date
DE2109803B2 (en) 1979-10-04
FR2081890A1 (en) 1971-12-10
FR2081890B1 (en) 1973-06-08
DE2109803A1 (en) 1971-09-23
DE2109803C3 (en) 1981-09-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee