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. Logic gates are primarily implemented using diodes or transistors as electrical switches, but can also be constructed using electromagnetic relays (relay logic), vacuum tubes, optics, molecules, fluidic logic, pneumatic logic, or even mechanical elements.

Types of Logic Gate

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

  • AND Gates - these gates have multiple inputs that are processed into a single signal output 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 - similar to 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.

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 such as:

  • Encoders & Decoders
  • Multiplexers & Demultiplexers
  • Full and half adders

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제품설명 단가 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 제품 번호 305-181
제조사 부품 번호SN74LS33N
₩2,270.75
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NOR Through Hole 4 2 No PDIP 14 LS - 5.25 V -0.25mA 32 ns @ 5 V 4.75 V 24mA
RS 제품 번호 688-1521
제조사 부품 번호MC14081BDR2G
제조사ON Semiconductor
₩682.00
Each (In a Pack of 5)
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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 제품 번호 146-0843
제조사 부품 번호74HCT1G32GW,125
제조사Nexperia
₩79.05
Each (On a Reel of 3000)
수량
OR Surface Mount 1 2 No TSSOP 5 HCT TTL 5.5 V -2mA 27ns 4.5 V 2mA
RS 제품 번호 178-7128
제조사 부품 번호74LVC1G08GW,125
제조사Nexperia
₩60.45
Each (On a Reel of 3000)
수량
AND Surface Mount 1 2 No TSSOP 5 LVC - 5.5 V -32mA - 1.65 V 32mA
RS 제품 번호 518-9164
제조사 부품 번호MC14081BDG
제조사ON Semiconductor
₩714.55
Each
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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 제품 번호 145-5920
제조사 부품 번호SN74LS33N
₩2,047.55
Each (In a Tube of 25)
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NOR Through Hole 4 2 No PDIP 14 LS - 5.25 V -0.25mA 32 ns @ 5 V 4.75 V 24mA
RS 제품 번호 178-4794
제조사 부품 번호MC14081BDG
제조사ON Semiconductor
₩596.75
Each (In a Tube of 55)
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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 제품 번호 775-7784
제조사 부품 번호74HCT1G32GW,125
제조사Nexperia
₩372.00
Each (In a Bag of 30)
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OR Surface Mount 1 2 No TSSOP 5 HCT TTL 5.5 V -2mA 27ns 4.5 V 2mA
RS 제품 번호 510-201
제조사 부품 번호74LVC1G08GW,125
제조사Nexperia
₩283.65
Each (In a Pack of 50)
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AND Surface Mount 1 2 No TSSOP 5 LVC - 5.5 V -32mA - 1.65 V 32mA
RS 제품 번호 170-3418
제조사 부품 번호MC14081BDR2G
제조사ON Semiconductor
₩148.80
Each (On a Reel of 2500)
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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 제품 번호 144-9938
제조사 부품 번호CD4077BE
₩644.80
Each (In a Tube of 25)
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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
RS 제품 번호 662-9666
제조사 부품 번호CD4077BE
₩799.80
Each (In a Pack of 5)
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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
RS 제품 번호 526-537
제조사 부품 번호CD4011BE
₩720.75
Each (In a Tube of 25)
수량
NAND Through Hole 4 2 No PDIP 14 4000 - 18 V -4.2mA 90 ns @ 15 V, 120 ns @ 10 V, 250 ns @ 5 V 3 V 4.2mA
RS 제품 번호 166-2397
제조사 부품 번호MM74HCT32MX
제조사ON Semiconductor
₩333.25
Each (On a Reel of 2500)
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OR Surface Mount 4 2 No SOIC 14 HCT - 5.5 V -4.8mA 20 ns @ 5 V 4.5 V 4.8mA
RS 제품 번호 121-8348
제조사 부품 번호CD4011BE
₩720.75
Each (In a Tube of 25)
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NAND Through Hole 4 2 - PDIP 14 4000 - 18 V -4.2mA 90 ns @ 15 V, 120 ns @ 10 V, 250 ns @ 5 V 3 V 4.2mA
RS 제품 번호 179-2125
제조사 부품 번호SN74AC08DR
₩477.40
Each (In a Tube of 50)
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AND Surface Mount 4 2 No SOIC 14 AC - 6 V -24mA 7.5 ns @ 5 V, 9.5 ns @ 3.3 V 2 V 24mA
RS 제품 번호 671-1848
제조사 부품 번호MM74HCT32MX
제조사ON Semiconductor
₩810.65
Each (In a Pack of 10)
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OR Surface Mount 4 2 No SOIC 14 HCT - 5.5 V -4.8mA 20 ns @ 5 V 4.5 V 4.8mA
RS 제품 번호 124-2273
제조사 부품 번호74LVC2G32DP,125
제조사Nexperia
₩249.55
Each (On a Reel of 3000)
수량
OR Surface Mount 2 2 - TSSOP 8 LVC TTL 5.5 V -32mA 6 ns @ 50 pF 1.65 V 32mA
RS 제품 번호 169-7221
제조사 부품 번호74AHC86T14-13
제조사DiodesZetex
₩181.35
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XOR Surface Mount 4 2 Yes TSSOP 14 AHC Schmitt Trigger 5.5 V -4mA 18.5 ns @ 50 pF 2 V 8mA
RS 제품 번호 145-0875
제조사 부품 번호CD74HCT21M
₩297.60
Each (In a Tube of 50)
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AND Surface Mount 2 4 No SOIC 14 HCT - 5.5 V -4mA 27 ns @ 4.5 V 4.5 V 4mA