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
TC74HC08APF IC GATE AND 4CH 2-INP 14DIP Toshiba Semiconductor and Storage	2,398 In Stock	1 : £0.20000 Tube	74HC	Tube	Active	AND Gate	4	2	-	2V ~ 6V	1 µA	5.2mA, 5.2mA	0.5V ~ 1.8V	1.5V ~ 4.2V	13ns @ 6V, 50pF	-40°C ~ 85°C	Through Hole	14-DIP	14-DIP (0.300", 7.62mm)
SN7402N IC GATE NOR 4CH 2-INP 14DIP Texas Instruments	638 In Stock 21,041 Marketplace	1 : £1.98000 Tube 193 : £1.20244 Bulk	7400	Bulk Tube	Active	NOR Gate	4	2	-	4.75V ~ 5.25V	-	400µA, 16mA	0.8V	2V	22ns @ 5V, 15pF	0°C ~ 70°C	Through Hole	14-PDIP	14-DIP (0.300", 7.62mm)
SN7432N IC GATE OR 4CH 2-INP 14DIP Texas Instruments	649 In Stock 12,730 Marketplace	1 : £2.06000 Tube 193 : £1.20244 Bulk	7400	Bulk Tube	Active	OR Gate	4	2	-	4.75V ~ 5.25V	22 mA	800µA, 16mA	0.8V	2V	22ns @ 5V, 15pF	0°C ~ 70°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.