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
 New RS Stock No. 759-6696 Mfr. Part No.74AC86SC BrandON Semiconductor Compare PHP25.172 Each (In a Pack of 55) units XOR Surface Mount 4 2 No SOIC 14 AC - 6 V -75mA 12.5ns 2 V 75mA New RS Stock No. 368-6203 Mfr. Part No.SN74LS21N BrandTexas Instruments Compare PHP31.76 Each (In a Tube of 25) units AND Through Hole 2 4 No PDIP 14 LS - 5.25 V -0.4mA 20 ns @ 5 V 4.75 V 8mA New RS Stock No. 787-369 Mfr. Part No.HEF4011BT,652 BrandNexperia Compare PHP24.102 Each (In a Pack of 5) units NAND Surface Mount 4 2 No SOIC 14 4000 - 15 V -3.6mA 110 ns @ 5 V, 35 ns @ 15 V, 45 ns @ 10 V 3 V 3.6mA New RS Stock No. 113-0130 Mfr. Part No.74HC32D,652 BrandNexperia Compare PHP20.48 Each units 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 New RS Stock No. 145-1082 Mfr. Part No.SN74S140N BrandTexas Instruments Compare PHP126.53 Each (In a Tube of 25) units NAND Through Hole 2 4 No PDIP 14 S - 5.25 V -40mA 6.5 ns @ 5 V 4.75 V 60mA New RS Stock No. 103-8153 Mfr. Part No.HEF4011BT,652 BrandNexperia Compare PHP18.38 Each (In a Tube of 57) units NAND Surface Mount 4 2 No SOIC 14 4000 - 15 V -3.6mA 110 ns @ 5 V, 35 ns @ 15 V, 45 ns @ 10 V 3 V 3.6mA New RS Stock No. 355-9993 Mfr. Part No.74LVC125APW,112 BrandNexperia Compare PHP19.43 Each units Buffer, Line Driver Surface Mount - - No TSSOP 14 LVC Single Ended 3.6 V -24mA 2.4 ns @ 3.3 V 1.2 V 24mA New RS Stock No. 144-9938 Mfr. Part No.CD4077BE BrandTexas Instruments Compare PHP15.252 Each (In a Tube of 25) units XNOR Through Hole 4 2 No PDIP 14 4000 - 18 V -4.2mA 100 ns @ 15 V, 130 ns @ 10 V, 280 ns @ 5 V 3 V 4.2mA New RS Stock No. 791-8841 Mfr. Part No.HEF4070BT,652 BrandNexperia Compare PHP19.37 Each (In a Pack of 38) units OR Surface Mount 4 2 No SOIC 14 4000 CMOS 15 V - 50 ns @ 15 V 5 V - New RS Stock No. 662-9660 Mfr. Part No.CD4081BE BrandTexas Instruments Compare PHP36.724 Each (In a Pack of 5) units AND Through Hole 4 2 No PDIP 14 4000 - 18 V -4.2mA 120 ns @ 10 V, 250 ns @ 5 V, 90 ns @ 15 V 3 V 4.2mA New RS Stock No. 527-653 Mfr. Part No.SN74AHC1G32DBVR BrandTexas Instruments Compare PHP12.658 Each (In a Pack of 25) units OR Surface Mount 1 2 No SOT-23 5 AHC - 5.5 V -8mA 11.4 ns @ 3.3 V, 7.5 ns @ 5 V 2 V 8mA New RS Stock No. 170-8016 Mfr. Part No.74LVC125APW,118 BrandNexperia Compare PHP5.615 Each (On a Reel of 2500) units Buffer, Line Driver Surface Mount - - - TSSOP 14 74LVC Single Ended 3.6 V -24mA 12.8 ns @ 50 pF 1.2 V 24mA New RS Stock No. 124-2270 Mfr. Part No.74LVC125APW,112 BrandNexperia Compare PHP15.12 Each (In a Tube of 96) units Buffer, Line Driver Surface Mount - - No TSSOP 14 LVC Single Ended 3.6 V -24mA 2.4 ns @ 3.3 V 1.2 V 24mA New RS Stock No. 162-6715 Mfr. Part No.SN74LVC1G332DBVR BrandTexas Instruments Compare PHP4.88 Each (On a Reel of 3000) units OR Surface Mount 1 3 No SOT-23 6 LVC Differential 5.5 V -4mA 20 ns @ 50 pF 1.65 V 32mA New RS Stock No. 170-7993 Mfr. Part No.HEF4011BT,653 BrandNexperia Compare PHP6.25 Each (On a Reel of 2500) units NAND Surface Mount 4 2 - SO 14 HEF CMOS 15 V -4.2mA 110 ns @ 50 pF 3 V 4.2mA New RS Stock No. 709-2292 Mfr. Part No.SN74LS38NE4 BrandTexas Instruments Compare PHP50.578 Each (In a Pack of 5) units NAND Through Hole 4 2 No PDIP 14 LS - 5.25 V -0.25mA 32 ns @ 5 V 4.75 V 24mA New RS Stock No. 662-7730 Mfr. Part No.SN74AHC1G32DBVT BrandTexas Instruments Compare PHP38.85 Each (In a Pack of 5) units OR Surface Mount 1 2 No SOT-23 5 AHC - 5.5 V -8mA 11.4 ns @ 3.3 V, 7.5 ns @ 5 V 2 V 8mA New RS Stock No. 162-7416 Mfr. Part No.SN74LS38NE4 BrandTexas Instruments Compare PHP28.36 Each (In a Tube of 25) units NAND Through Hole 4 2 No PDIP 14 LS - 5.25 V -0.25mA 32 ns @ 5 V 4.75 V 24mA New RS Stock No. 809-6006 Mfr. Part No.SN74LVC1G332DBVR BrandTexas Instruments Compare PHP16.33 Each (In a Pack of 20) units OR Surface Mount 1 3 No SOT-23 6 LVC Differential 5.5 V -4mA 20 ns @ 50 pF 1.65 V 32mA New RS Stock No. 663-3072 Mfr. Part No.SN74S140N BrandTexas Instruments Compare PHP140.70 Each (In a Pack of 5) units NAND Through Hole 2 4 No PDIP 14 S - 5.25 V -40mA 6.5 ns @ 5 V 4.75 V 60mA
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