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. 178-4794
Mfr. Part No.MC14081BDG
HK$3.451
Each (In a Tube of 55)
units
AND Surface Mount 4 2 No SOIC 14 4000 - 18 V -4.2mA 100 ns @ 15 V, 130 ns @ 10 V, 300 ns @ 5 V 3 V 4.2mA
RS Stock No. 170-3418
Mfr. Part No.MC14081BDR2G
HK$0.958
Each (On a Reel of 2500)
units
AND Surface Mount 4 2 No SOIC 14 4000 - 18 V -4.2mA 100 ns @ 15 V, 130 ns @ 10 V, 300 ns @ 5 V 3 V 4.2mA
RS Stock No. 518-9164
Mfr. Part No.MC14081BDG
HK$4.45
Each
units
AND Surface Mount 4 2 No SOIC 14 4000 - 18 V -4.2mA 100 ns @ 15 V, 130 ns @ 10 V, 300 ns @ 5 V 3 V 4.2mA
RS Stock No. 688-1521
Mfr. Part No.MC14081BDR2G
HK$3.59
Each (In a Pack of 5)
units
AND Surface Mount 4 2 No SOIC 14 4000 - 18 V -4.2mA 100 ns @ 15 V, 130 ns @ 10 V, 300 ns @ 5 V 3 V 4.2mA
RS Stock No. 671-1848
Mfr. Part No.MM74HCT32MX
HK$3.89
Each (In a Pack of 10)
units
OR Surface Mount 4 2 No SOIC 14 HCT - 5.5 V -4.8mA 20 ns @ 5 V 4.5 V 4.8mA
RS Stock No. 166-2397
Mfr. Part No.MM74HCT32MX
HK$1.57
Each (On a Reel of 2500)
units
OR Surface Mount 4 2 No SOIC 14 HCT - 5.5 V -4.8mA 20 ns @ 5 V 4.5 V 4.8mA
RS Stock No. 806-1491
Mfr. Part No.MC74HC1G32DTT1G
HK$0.804
Each (On a Tape of 100)
units
OR Surface Mount 1 2 No TSOP 5 HC CMOS 6 V -2.6mA 155ns 2 V 2.6mA
RS Stock No. 163-0594
Mfr. Part No.MC74HC1G32DTT1G
HK$0.471
Each (On a Reel of 3000)
units
OR Surface Mount 1 2 No TSOP 5 HC CMOS 6 V -2.6mA 155ns 2 V 2.6mA
RS Stock No. 807-0704
Mfr. Part No.MC10EL04DG
HK$52.53
Each (In a Pack of 2)
units
AND/NAND Surface Mount 1 2 No SOIC 8 ECL ECL 5.7 V - 395ps -4.2 V 0.3µA
RS Stock No. 162-9388
Mfr. Part No.MC14001BDR2G
HK$1.02
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. 761-4334
Mfr. Part No.74LCX08MX
HK$4.45
Each (On a Tape of 10)
units
AND Surface Mount 4 2 No SOIC 14 LCX CMOS 3.6 V -24mA 6.2ns 2 V 24mA
RS Stock No. 806-2157
Mfr. Part No.MC74AC11DR2G
HK$3.37
Each (On a Tape of 50)
units
AND Surface Mount 3 3 No SOIC 14 AC TTL 6 V -24mA 10 ns @ 50 pF 2 V 24mA
RS Stock No. 166-1852
Mfr. Part No.74LCX08M
HK$4.10
Each (In a Tube of 55)
units
AND Surface Mount 4 2 No SOIC 14 LCX - 3.6 V -24mA 5.5 ns @ 3.3 V, 6.2 ns @ 2.7 V 2 V 24mA
RS Stock No. 163-0500
Mfr. Part No.MC10EL04DG
HK$43.38
Each (In a Tube of 98)
units
AND/NAND Surface Mount 1 2 No SOIC 8 ECL ECL 5.7 V - 395ps -4.2 V 0.3µA
RS Stock No. 806-2602
Mfr. Part No.MC100EP08DG
HK$66.23
Each
units
XOR/XNOR Surface Mount 1 2 No SOIC 8 EP ECL 5.5 V - 320ps -3 V 0.5µA
RS Stock No. 166-3071
Mfr. Part No.NC7WZ08K8X
HK$1.03
Each (On a Reel of 3000)
units
AND Surface Mount 2 2 No US 8 - CMOS 5.5 V -32mA 5.2ns 1.65 V 32mA
RS Stock No. 761-4568
Mfr. Part No.NC7WZ08K8X
HK$2.94
Each (On a Tape of 25)
units
AND Surface Mount 2 2 No US 8 - CMOS 5.5 V -32mA 5.2ns 1.65 V 32mA
RS Stock No. 103-2926
Mfr. Part No.MC14093BDG
HK$2.80
Each (In a Tube of 55)
units
NAND Surface Mount 4 2 Yes SOIC 14 4000 Schmitt Trigger 18 V -4.2mA 80 ns @ 15 V, 100 ns @ 10 V, 250 ns @ 5 V 3 V 4.2mA
RS Stock No. 670-9790
Mfr. Part No.NC7SZ08M5X
HK$2.58
Each (In a Pack of 10)
units
AND Surface Mount 1 2 No SOT-23 5 TinyLogic UHS - 5.5 V -32mA 4.5 ns @ 5 V, 5.2 ns @ 3.3 V 1.65 V 32mA
RS Stock No. 163-0572
Mfr. Part No.MC74AC11DR2G
HK$1.18
Each (On a Reel of 2500)
units
AND Surface Mount 3 3 No SOIC 14 AC TTL 6 V -24mA 10 ns @ 50 pF 2 V 24mA