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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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庫存編號 809-9607
製造零件編號SN74AUP2G08DCUR
TWD12.1000
Each (On a Tape of 10)
單位
AND Surface Mount 2 2 No US 8 AUP Differential 3.6 V -4mA 27 ns @ 30 pF 0.8 V 4mA
RS庫存編號 121-9324
製造零件編號SN74LVC1G08DCKR
TWD1.1000
個 (在毎卷:3000)
單位
AND Surface Mount 1 2 - SC-70 5 LVC - 5.5 V -32mA 5 ns @ 5 V 1.65 V 32mA
RS庫存編號 162-6670
製造零件編號SN74AUP2G08DCUR
TWD6.5000
個 (在毎卷:3000)
單位
AND Surface Mount 2 2 No US 8 AUP Differential 3.6 V -4mA 27 ns @ 30 pF 0.8 V 4mA
RS庫存編號 527-643
製造零件編號SN74AHC1G86DBVR
TWD4.0000
/個 (每包:25個)
單位
XOR Surface Mount 1 2 No SOT-23 5 AHC - 5.5 V -8mA 8.8 ns @ 5 V, 14.5 ns @ 3.3 V 2 V 8mA
RS庫存編號 662-8711
製造零件編號SN74LVC1G08DCKT
TWD21.6000
/個 (每包:5個)
單位
AND Surface Mount 1 2 No SC-70 5 LVC - 5.5 V -32mA 4 ns @ 5 V, 4.5 ns @ 3.3 V 1.65 V 32mA
RS庫存編號 796-8231
製造零件編號SN74LVC1G08DCKR
TWD7.2000
/個 (每包:25個)
單位
AND Surface Mount 1 2 No SC-70 5 LVC CMOS, TTL 5.5 V -32mA 5 ns @ 5 V 1.65 V 32mA
RS庫存編號 165-9930
製造零件編號74AUP1G32GW,125
BrandNexperia
TWD3.2000
個 (在毎卷:3000)
單位
OR Surface Mount 1 2 Yes TSSOP 5 AUP Schmitt Trigger 3.6 V -4mA 23.7 ns @ 30 pF 0.8 V 4mA
RS庫存編號 333-2748
製造零件編號SN74HC00N
TWD10.8000
毎管:25 個
單位
NAND Through Hole 4 2 No PDIP 14 HC - 6 V -5.2mA 15 ns @ 6 V, 18 ns @ 4.5 V, 90 ns @ 2 V 2 V 5.2mA
RS庫存編號 813-9250
製造零件編號74AUP1G32GW,125
BrandNexperia
TWD4.8000
Each (On a Tape of 40)
單位
OR Surface Mount 1 2 Yes TSSOP 5 AUP Schmitt Trigger 3.6 V -4mA 23.7 ns @ 30 pF 0.8 V 4mA
RS庫存編號 168-4296
製造零件編號SN74LVC2G86DCUT
TWD15.6000
個 (在毎卷:250)
單位
OR Surface Mount 2 2 No US 8 LVC Differential 5.5 V -4mA 4.2 ns @ 50 pF 1.65 V 32mA
RS庫存編號 922-2868
製造零件編號SN74LVC2G86DCUR
TWD5.7000
個 (在毎卷:3000)
單位
XOR Surface Mount 2 2 No VSSOP 8 LVC - 5.5 V -32mA 3.6 ns @ 5 V, 4.7 ns @ 3.3 V 1.65 V 32mA
RS庫存編號 662-8976
製造零件編號SN74LVC2G86DCUR
TWD16.4000
/個 (每包:5個)
單位
XOR Surface Mount 2 2 No VSSOP 8 LVC - 5.5 V -32mA 3.6 ns @ 5 V, 4.7 ns @ 3.3 V 1.65 V 32mA
RS庫存編號 809-6071
製造零件編號SN74LVC2G86DCUT
TWD17.8000
Each (On a Tape of 10)
單位
OR Surface Mount 2 2 No US 8 LVC Differential 5.5 V -4mA 4.2 ns @ 50 pF 1.65 V 32mA
RS庫存編號 822-8657
製造零件編號74AHC1G08SE-7
TWD1.1000
/個 (每包:200個)
單位
AND Surface Mount 1 2 Yes SOT-353 5 AHC Schmitt Trigger 5.5 V -8mA - 2 V 8mA
RS庫存編號 162-5264
製造零件編號TISSN74AHC1G32DCKR
TWD1.4000
個 (在毎卷:3000)
單位
OR Surface Mount 1 2 No SC-70 5 AHC - 5.5 V -8mA 7.5 ns @ 5 V, 11.4 ns @ 3.3 V 2 V 8mA
RS庫存編號 165-8851
製造零件編號74AHC1G08SE-7
TWD1.0000
個 (在毎卷:3000)
單位
AND Surface Mount 1 2 Yes SOT-353 5 AHC Schmitt Trigger 5.5 V -8mA - 2 V 8mA
RS庫存編號 652-5066
製造零件編號SN74AHC1G32DCKR
TWD3.4000
/個 (每包:10個)
單位
OR Surface Mount 1 2 No SC-70 5 AHC - 5.5 V -8mA 7.5 ns @ 5 V, 11.4 ns @ 3.3 V 2 V 8mA
RS庫存編號 670-9794
製造零件編號NC7SZ08P5X
TWD6.3000
/個 (每包:10個)
單位
AND Surface Mount 1 2 No SC-70 5 TinyLogic UHS - 5.5 V -32mA 4.5 ns @ 5 V, 5.2 ns @ 3.3 V 1.65 V 32mA
RS庫存編號 145-6404
製造零件編號SN74LS136D
TWD16.5000
毎管:50 個
單位
XOR Surface Mount 4 2 No SOIC 14 LS - 5.25 V -0.1mA 30 ns @ 5 V 4.75 V 8mA
RS庫存編號 145-0895
製造零件編號SN74LS26N
TWD17.3000
毎管:25 個
單位
NAND Through Hole 4 2 No PDIP 14 LS - 5.25 V -1mA 32 ns @ 5 V 4.75 V 8mA