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.

The RS components range offers semiconductor logic gates from leading brands, with input/output configurations to suit the demands of your digital circuit.

Types of Logic Gate

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

• AND Gates. This gate has multiple inputs that are processed to a single signal 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. Like 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.

There are also logic gates referred to as Exclusive Gates.

• XNOR (EX-NOR) Gate. These gates process a high signal if all input signals are true, e.g: if there are two one signals or two zero signals.

• XOR Gate. Unlike an XNOR, XOR performs exclusive dis-junction, which means it will only output a true signal if exactly one of the inputs are true.

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. Though their essential functions remain unchanged, their implementations are many.

• Encoders
• Decoders
• Multiplexers
• Demultiplexers
• Full adders
• Half adders

...
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Beskrivning Pris 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-artikelnummer 165-8332
Tillv. art.nrZXGD3009DYTA
VarumärkeDiodesZetex
0,671 kr
Each (On a Reel of 3000)
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Non-Inverting Surface Mount 2 - - SOT-363 6 - Single 40 V - - - -
RS-artikelnummer 921-1265
Tillv. art.nrZXGD3009DYTA
VarumärkeDiodesZetex
0,684 kr
Each (In a Pack of 50)
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Non-Inverting Surface Mount 2 - - SOT-363 6 - Single 40 V - - - -
RS-artikelnummer 827-0311
Tillv. art.nr74LV132AS14-13
VarumärkeDiodesZetex
2,444 kr
Each (In a Pack of 50)
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NAND Surface Mount 4 2 Yes SOIC 14 LV Schmitt Trigger 5.5 V -12mA 11 ns @ 50 pF 2 V 12mA
RS-artikelnummer 921-0240
Tillv. art.nr74AHC1G02W5-7
VarumärkeDiodesZetex
0,192 kr
Each (In a Pack of 100)
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NOR Surface Mount 1 2 No SOT-25 5 AHC CMOS 5.5 V -8mA 9.5 ns @ 50 pF 2 V 8mA
RS-artikelnummer 169-7252
Tillv. art.nr74HCT86T14-13
VarumärkeDiodesZetex
0,998 kr
Each (On a Reel of 2500)
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XOR Surface Mount 4 2 Yes TSSOP 14 HCT Schmitt Trigger 5.5 V -4mA 48 ns @ 50 pF 4.5 V 4mA
RS-artikelnummer 122-0343
Tillv. art.nr74LVC1G02SE-7
VarumärkeDiodesZetex
0,47 kr
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NOR Surface Mount 1 2 - SOT-353 5 LVC - 5.5 V -32mA 5.5ns 1.65 V 32mA
RS-artikelnummer 165-8322
Tillv. art.nrULN2003F12FN-7
VarumärkeDiodesZetex
1,239 kr
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- Surface Mount - - - DFN3030 10 - CMOS 5 V - 140ns 3.3 V 140mA
RS-artikelnummer 146-0590
Tillv. art.nr74AHC1G04W5-7
VarumärkeDiodesZetex
0,413 kr
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Inverter Surface Mount 1 - - SOT-25 5 AHC CMOS 5.5 V -8mA 9.5 ns @ 50 pF 2 V 8mA
RS-artikelnummer 122-0346
Tillv. art.nr74LVC1G08SE-7
VarumärkeDiodesZetex
0,402 kr
Each (On a Reel of 3000)
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AND Surface Mount 1 2 - SOT-353 5 LVC - 5.5 V -32mA 5.5ns 1.65 V 32mA
RS-artikelnummer 822-8650
Tillv. art.nr74AHC1G00W5-7
VarumärkeDiodesZetex
0,747 kr
Each (In a Pack of 100)
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NAND Surface Mount 1 2 Yes SOT-25 5 AHC Schmitt Trigger 5.5 V -8mA - 2 V 8mA
RS-artikelnummer 165-8686
Tillv. art.nr74LV132AS14-13
VarumärkeDiodesZetex
0,883 kr
Each (On a Reel of 2500)
Enheter
NAND Surface Mount 4 2 Yes SOIC 14 LV Schmitt Trigger 5.5 V -12mA 11 ns @ 50 pF 2 V 12mA
RS-artikelnummer 146-0942
Tillv. art.nr74LVC1G11W6-7
VarumärkeDiodesZetex
0,434 kr
Each (On a Reel of 3000)
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AND Surface Mount 1 3 No SOT-26 5 LVC CMOS 5.5 V -32mA 3.7 ns @ 15 pF 1.65 V 32mA
RS-artikelnummer 822-8685
Tillv. art.nr74AHCT1G86SE-7
VarumärkeDiodesZetex
0,609 kr
Each (In a Pack of 200)
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XOR Surface Mount 1 2 Yes SOT-353 5 AHCT Schmitt Trigger 5.5 V -8mA - 4.5 V 8mA
RS-artikelnummer 770-5294
Tillv. art.nr74LVC00AT14-13
VarumärkeDiodesZetex
0,451 kr
Each (In a Pack of 25)
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NAND Surface Mount 4 2 No TSSOP 14 LVC CMOS 5.5 V -24mA 6.5 ns @ 2.7 V 1.65 V 24mA
RS-artikelnummer 165-8851
Tillv. art.nr74AHC1G08SE-7
VarumärkeDiodesZetex
0,356 kr
Each (On a Reel of 3000)
Enheter
AND Surface Mount 1 2 Yes SOT-353 5 AHC Schmitt Trigger 5.5 V -8mA - 2 V 8mA
RS-artikelnummer 169-7210
Tillv. art.nr74AHC00S14-13
VarumärkeDiodesZetex
0,941 kr
Each (On a Reel of 2500)
Enheter
NAND Surface Mount 4 2 Yes SOIC 14 AHC Schmitt Trigger 5.5 V -4mA 14.5 ns @ 50 pF 2 V 8mA
RS-artikelnummer 169-7223
Tillv. art.nr74AHCT08S14-13
VarumärkeDiodesZetex
0,486 kr
Each (On a Reel of 2500)
Enheter
AND Surface Mount 4 2 Yes SOIC 14 AHCT Schmitt Trigger 5.5 V -8mA 11 ns @ 50 pF 4.5 V 8mA
RS-artikelnummer 165-8860
Tillv. art.nr74LVC1G97DW-7
VarumärkeDiodesZetex
0,402 kr
Each (On a Reel of 3000)
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Multifunction Surface Mount 1 2 No SOT-363 6 LVC CMOS 5.5 V -32mA - 1.65 V 32mA
RS-artikelnummer 122-0341
Tillv. art.nr74LVC1G00SE-7
VarumärkeDiodesZetex
0,47 kr
Each (On a Reel of 3000)
Enheter
NAND Surface Mount 1 2 - SOT-353 5 LVC - 5.5 V -32mA 5.5ns 1.65 V 32mA
RS-artikelnummer 146-0932
Tillv. art.nr74AHC1G02W5-7
VarumärkeDiodesZetex
0,194 kr
Each (On a Reel of 3000)
Enheter
NOR Surface Mount 1 2 No SOT-25 5 AHC CMOS 5.5 V -8mA 9.5 ns @ 50 pF 2 V 8mA