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 GateLogic 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 thepositive 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.ApplicationsAs 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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Description Price 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 Stock No. 145-4219
Mfr. Part No.MC74VHCT00ADR2G
$0.192
Each (On a Reel of 2500)
units
NAND Surface Mount 4 2 No SOIC 14 HCT TTL 5.5 V -8mA 17.5ns 3 V 8mA
RS Stock No. 805-6402
Mfr. Part No.MC74VHCT00ADR2G
$0.545
Each (On a Tape of 50)
units
NAND Surface Mount 4 2 No SOIC 14 HCT TTL 5.5 V -8mA 17.5ns 3 V 8mA
RS Stock No. 761-3482
Mfr. Part No.74AC08SCX
$0.901
Each (On a Tape of 25)
units
AND Surface Mount 4 2 No SOIC 14 AC - 6 V -24mA 10ns 2 V 24mA
RS Stock No. 166-2421
Mfr. Part No.74AC08SCX
$0.362
Each (On a Reel of 2500)
units
AND Surface Mount 4 2 No SOIC 14 AC - 6 V -24mA 10ns 2 V 24mA
RS Stock No. 761-3486
Mfr. Part No.74AC32SCX
$0.867
Each (In a Pack of 25)
units
OR Surface Mount 4 2 No SOIC 14 AC - 6 V -24mA 10ns 2 V 24mA
RS Stock No. 791-6072
Mfr. Part No.MC14001BDR2G
$0.578
Each (On a Tape of 25)
units
NOR Surface Mount 4 2 No SOIC 14 4000 CMOS 18 V -4.2mA 350ns 0.5 V 4.2mA
RS Stock No. 518-8616
Mfr. Part No.MC14001BDG
$0.80
Each
units
NOR Surface Mount 4 2 No SOIC 14 4000 - 18 V -4.2mA 100 ns @ 10 V, 250 ns @ 5 V, 80 ns @ 15 V 3 V 4.2mA
RS Stock No. 806-3150
Mfr. Part No.MC14025BDG
$0.662
Each (In a Pack of 55)
units
NOR Surface Mount 3 3 No SOIC 14 4000 - 18 V -10mA 300ns 3 V 10mA
RS Stock No. 178-4790
Mfr. Part No.MC14001BDG
$0.603
Each (In a Tube of 55)
units
NOR Surface Mount 4 2 No SOIC 14 4000 - 18 V -4.2mA 100 ns @ 10 V, 250 ns @ 5 V, 80 ns @ 15 V 3 V 4.2mA
RS Stock No. 162-9388
Mfr. Part No.MC14001BDR2G
$0.202
Each (On a Reel of 2500)
units
NOR Surface Mount 4 2 No SOIC 14 4000 CMOS 18 V -4.2mA 350ns 0.5 V 4.2mA
RS Stock No. 178-7553
Mfr. Part No.74AC32SCX
$0.35
Each (On a Reel of 2500)
units
OR Surface Mount 4 2 No SOIC 14 AC - 6 V -24mA 10ns 2 V 24mA
RS Stock No. 186-7323
Mfr. Part No.MM74HCT04M
$0.85
Each (In a Tube of 55)
units
Inverter Surface Mount - - - SOIC 14 HCT CMOS 5.5 V 4.8mA 18 ns @ 15 pF 4.5 V 4.8mA
RS Stock No. 806-1088
Mfr. Part No.NC7SZ332P6X
$0.548
Each (On a Tape of 50)
units
OR Surface Mount 1 3 No SC-70 6 TinyLogic UHS CMOS 5.5 V -32mA 9ns 1.65 V 32mA
RS Stock No. 166-3743
Mfr. Part No.NC7SV11P6X
$0.17
Each (On a Reel of 3000)
units
AND Surface Mount 1 3 No SC-70 6 TinyLogic ULP-A CMOS 3.6 V -24mA 9.2 ns @ 30 pF 0.9 V 24mA
RS Stock No. 806-2144
Mfr. Part No.MC74AC08DG
$0.693
Each (In a Pack of 55)
units
AND Surface Mount 4 2 No SOIC 14 AC TTL 6 V -24mA 10 ns @ 50 pF 2 V 24mA
RS Stock No. 186-7324
Mfr. Part No.MM74HCT04MTCX
$0.307
Each (On a Reel of 2500)
units
Inverter Surface Mount - - - TSSOP 14 HCT CMOS 5.5 V 4.8mA 18 ns @ 15 pF 4.5 V 4.8mA
RS Stock No. 162-9997
Mfr. Part No.MC10EP05DG
$10.946
Each (In a Tube of 98)
units
AND/NAND Surface Mount 1 2 No SOIC 8 ECL ECL 5.5 V - 320ps 3 V -
RS Stock No. 184-4239
Mfr. Part No.M74VHC1G132DTT1G
$0.097
Each (On a Reel of 3000)
units
NAND Surface Mount 1 1 Yes TSOP 5 74VHC Schmitt Trigger 5.5 V - 19.6ns 2 V -
RS Stock No. 145-3226
Mfr. Part No.MC74HC02ADR2G
$0.151
Each (On a Reel of 2500)
units
NOR Surface Mount 4 2 No SOIC 14 LS CMOS 6 V 5.2mA 110 ns @ 50 pF 2 V 5.2mA
RS Stock No. 805-1554
Mfr. Part No.M74VHC1GT32DTT1G
$0.183
Each (In a Pack of 100)
units
OR Surface Mount 1 2 No TSOP 5 VHC TTL 5.5 V -8mA 15.5 ns @ 50 pF 3 V 8mA