Gates and Inverters

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Logic Type	Number of Circuits	Number of Inputs	Features	Voltage - Supply	Current - Quiescent (Max)	Current - Output High, Low	Input Logic Level - Low	Input Logic Level - High	Max Propagation Delay @ V, Max CL	Operating Temperature	Mounting Type	Supplier Device Package	Package / Case
SN74HC32N IC GATE OR 4CH 2-INP 14DIP Texas Instruments	0 In Stock 350,309 Marketplace Check Lead Time	1 : £0.47000 Tube 696 : £0.31911 Bulk	74HC	Bulk Tube	Active	OR Gate	4	2	-	2V ~ 6V	2 µA	5.2mA, 5.2mA	0.5V ~ 1.8V	1.5V ~ 4.2V	17ns @ 6V, 50pF	-40°C ~ 85°C	Through Hole	14-PDIP	14-DIP (0.300", 7.62mm)
SN74HC02N IC GATE NOR 4CH 2-INP 14DIP Texas Instruments	4,216 In Stock 26,620 Marketplace	1 : £0.50000 Tube 648 : £0.34137 Bulk	74HC	Bulk Tube	Active	NOR Gate	4	2	-	2V ~ 6V	2 µA	5.2mA, 5.2mA	0.5V ~ 1.8V	1.5V ~ 4.2V	15ns @ 6V, 50pF	-40°C ~ 85°C	Through Hole	14-PDIP	14-DIP (0.300", 7.62mm)
SN74HC27N IC GATE NOR 3CH 3-INP 14DIP Texas Instruments	4,531 In Stock	1 : £0.53000 Tube	74HC	Tube	Active	NOR Gate	3	3	-	2V ~ 6V	2 µA	5.2mA, 5.2mA	0.5V ~ 1.8V	1.5V ~ 4.2V	15ns @ 6V, 50pF	-40°C ~ 85°C	Through Hole	14-PDIP	14-DIP (0.300", 7.62mm)

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Products in the logic gate and inverter family perform elementary logical operations on individual logic signals such as AND, NOT, OR, etc. Unlike flip-flops they do not have a capacity to store information and respond immediately to the signals presented to their inputs. Though long supplanted by implementations in integrated circuit form for realizing complex functions, discrete gates remain available for use in circumstances where only very simple logical functions are needed.