Logic Gates

Logic gates are physical components in a circuit that control the flow of a signal by implementing a Boolean function, processing a signal to binary information. Logic gates are foundational in logic circuits, or in any electronic circuit process that involves digital to analogue signal conversion, or the flow of digital information. Logic gates are primarily implemented using diodes or transistors as electrical switches, but can also be constructed using electromagnetic relays (relay logic), vacuum tubes, optics, molecules, fluidic logic, pneumatic logic, or even mechanical elements.

Types of Logic Gate

Logic gates have distinct logic functions. The most common of these are known as basic gates. These include:

  • AND Gates - these gates have multiple inputs that are processed into a single signal output depending on the positive combination of high signals in the inputs. It will only produce a high signal if both inputs register as high (e.g. two ones will result in a one, otherwise, it will have an output of zero).
  • OR Gates - similar to the AND gate, an OR gate has multiple inputs and a single output. In this case, it does not require a positive combination of one signals but will implement logical produce a high signal if one or all of the inputs are high. (e.g a one and a zero, or two ones, may produce a high signal, but two zeros will produce zeros.)
  • NOT Gates -also known as inverters, the NOT gates will process the signal as the opposite of its value (eg. a one will invert as a zero, and a zero will invert as a 1.)

There are also combined function logic gates that modify typical functions with an inversion.

  • NAND Gate - unlike an AND gate, NAND will process two high signals as a zero and all other combinations as a one.
  • NOR Gate - unlike an OR gate, this will produce a one if the inputs register a zero signal in any combination, rather than a high signal.
  • Buffer Gate - a buffer logic gate behaves in the opposite manner of a NOT gate, in that it passes a signal unchanged from input to output.

Applications

As CPUs employ binary logic, logic gates are essentially the building blocks of computers. As such, they can be found in many kinds of digital circuits such as:

  • Encoders & Decoders
  • Multiplexers & Demultiplexers
  • Full and half adders

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Omschrijving Prijs Logic Function Mounting Type Number of Elements Number of Inputs per Gate Schmitt Trigger Input Package Type Pin Count Logic Family Input Type Maximum Operating Supply Voltage Maximum High Level Output Current Maximum Propagation Delay Time @ Maximum CL Minimum Operating Supply Voltage Maximum Low Level Output Current
RS-stocknr. 103-8153
FabrikantnummerHEF4011BT,652
FabrikantNexperia
0,25 €
Each (In a Tube of 57)
Aantal stuks
NAND Surface Mount 4 2 No SOIC 14 4000 - 15 V -3.6mA 35 ns @ 15 V, 45 ns @ 10 V, 110 ns @ 5 V 3 V 3.6mA
RS-stocknr. 103-8395
FabrikantnummerHEF4001BT,652
FabrikantNexperia
0,259 €
Each (In a Tube of 57)
Aantal stuks
NOR Surface Mount 4 2 No SOIC 14 4000 - 15 V -4.2mA 40 ns @ 15 V, 50 ns @ 10 V, 120 ns @ 5 V 3 V 4.2mA
RS-stocknr. 166-1442
Fabrikantnummer74LVC1G00GW,125
FabrikantNexperia
0,032 €
Each (On a Reel of 3000)
Aantal stuks
NAND Surface Mount 1 2 No TSSOP 5 LVC - 5.5 V -32mA - 1.65 V 32mA
RS-stocknr. 170-7993
FabrikantnummerHEF4011BT,653
FabrikantNexperia
0,101 €
Each (On a Reel of 2500)
Aantal stuks
NAND Surface Mount 4 2 - SO 14 HEF CMOS 15 V -4.2mA 110 ns @ 50 pF 3 V 4.2mA
RS-stocknr. 510-308
Fabrikantnummer74LVC1G00GW,125
FabrikantNexperia
0,15 €
Each (In a Pack of 50)
Aantal stuks
NAND Surface Mount 1 2 No TSSOP 5 LVC - 5.5 V -32mA - 1.65 V 32mA
RS-stocknr. 813-9244
Fabrikantnummer74AUP1G02GW,125
FabrikantNexperia
0,231 €
Each (On a Tape of 40)
Aantal stuks
NOR Surface Mount 1 2 Yes TSSOP 5 AUP Schmitt Trigger 3.6 V -4mA 24.7 ns @ 30 pF 0.8 V 4mA
RS-stocknr. 178-7128
Fabrikantnummer74LVC1G08GW,125
FabrikantNexperia
0,026 €
Each (On a Reel of 3000)
Aantal stuks
AND Surface Mount 1 2 No TSSOP 5 LVC - 5.5 V -32mA - 1.65 V 32mA
RS-stocknr. 510-201
Fabrikantnummer74LVC1G08GW,125
FabrikantNexperia
0,12 €
Each (In a Pack of 50)
Aantal stuks
AND Surface Mount 1 2 No TSSOP 5 LVC - 5.5 V -32mA - 1.65 V 32mA
RS-stocknr. 165-9927
Fabrikantnummer74AUP1G02GW,125
FabrikantNexperia
0,071 €
Each (On a Reel of 3000)
Aantal stuks
NOR Surface Mount 1 2 Yes TSSOP 5 AUP Schmitt Trigger 3.6 V -4mA 24.7 ns @ 30 pF 0.8 V 4mA
RS-stocknr. 787-369
FabrikantnummerHEF4011BT,652
FabrikantNexperia
0,338 €
Each (In a Pack of 5)
Aantal stuks
NAND Surface Mount 4 2 No SOIC 14 4000 - 15 V -3.6mA 35 ns @ 15 V, 45 ns @ 10 V, 110 ns @ 5 V 3 V 3.6mA
RS-stocknr. 483-7941
FabrikantnummerHEF4077BT,652
FabrikantNexperia
0,279 €
Each (In a Pack of 20)
Aantal stuks
XNOR Surface Mount 4 2 No SOIC 14 4000 - 15 V -3.6mA 55 ns @ 15 V, 70 ns @ 10 V, 150 ns @ 5 V 3 V 3.6mA
RS-stocknr. 355-9167
FabrikantnummerHEF4093BT,652
FabrikantNexperia
0,40 €
Each
Aantal stuks
NAND Surface Mount 4 2 Yes SOIC 14 4000 Schmitt Trigger 15 V -4.2mA 60 ns @ 15 V, 80 ns @ 10 V, 185 ns @ 5 V 3 V 4.2mA
RS-stocknr. 170-7964
FabrikantnummerHEF4093BT,653
FabrikantNexperia
0,089 €
Each (On a Reel of 2500)
Aantal stuks
NAND Surface Mount 4 2 Yes SO 14 HEF Schmitt Trigger 15 V -4.2mA 185 ns @ 50 pF 3 V 4.2mA
RS-stocknr. 113-0130
Fabrikantnummer74HC32D,652
FabrikantNexperia
0,30 €
Each
Aantal stuks
OR Surface Mount 4 2 No SOIC 14 HC - 6 V -5.2mA 15 ns @ 6 V, 18 ns @ 4.5 V, 90 ns @ 2 V 2 V 5.2mA
RS-stocknr. 178-7127
Fabrikantnummer74LVC1G02GW,125
FabrikantNexperia
0,028 €
Each (On a Reel of 3000)
Aantal stuks
NOR Surface Mount 1 2 No TSSOP 5 LVC - 5.5 V -32mA - 1.65 V 32mA
RS-stocknr. 103-8093
Fabrikantnummer74HC1G86GW,125
FabrikantNexperia
0,043 €
Each (On a Reel of 3000)
Aantal stuks
XOR Surface Mount 1 2 No TSSOP 5 HC CMOS 6 V -2.6mA 135ns 2 V 2.6mA
RS-stocknr. 124-2258
Fabrikantnummer74HC32D,652
FabrikantNexperia
0,223 €
Each (In a Tube of 57)
Aantal stuks
OR Surface Mount 4 2 - SOIC 14 HC - 6 V -5.2mA 15 ns @ 6 V, 18 ns @ 4.5 V, 90 ns @ 2 V 2 V 5.2mA
RS-stocknr. 166-1287
Fabrikantnummer74HC11D,652
FabrikantNexperia
0,296 €
Each (In a Tube of 57)
Aantal stuks
AND Surface Mount 3 3 No SOIC 14 HC - 6 V -5.2mA 17 ns @ 6 V, 20 ns @ 4.5 V, 100 ns @ 2 V 2 V 5.2mA
RS-stocknr. 368-6720
FabrikantnummerHEF4001BT,652
FabrikantNexperia
0,259 €
Each (In a Tube of 57)
Aantal stuks
NOR Surface Mount 4 2 No SOIC 14 4000 - 15 V -4.2mA 40 ns @ 15 V, 50 ns @ 10 V, 120 ns @ 5 V 3 V 4.2mA
RS-stocknr. 170-8017
Fabrikantnummer74HCT132D,653
FabrikantNexperia
0,099 €
Each (On a Reel of 2500)
Aantal stuks
NAND Surface Mount 4 2 Yes SO 14 74HCT Schmitt Trigger 5.5 V -4mA 50 ns @ 50 pF 4.5 V 4mA