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

74HC21D,653 IC GATE AND 2CH 4-INP 14SO Nexperia USA Inc.	18,063 In Stock	1 : ¥2.96000 Cut Tape (CT) 2,500 : ¥1.18086 Tape & Reel (TR)	74HC	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	AND Gate	2	4	-	2V ~ 6V	2 µA	5.2mA, 5.2mA	0.5V ~ 1.8V	1.5V ~ 4.2V	19ns @ 6V, 50pF	-40°C ~ 125°C	Surface Mount	14-SO	14-SOIC (0.154", 3.90mm Width)
SN74HC20D IC GATE NAND 2CH 4-INP 14SOIC Texas Instruments	802 In Stock 46,315 Marketplace	628 : ¥3.49694 Bulk 1 : ¥9.03000 Tube	74HC	Bulk Tube	Obsolete	NAND Gate	2	4	-	2V ~ 6V	2 µA	5.2mA, 5.2mA	0.5V ~ 1.8V	1.5V ~ 4.2V	19ns @ 6V, 50pF	-40°C ~ 85°C	Surface Mount	14-SOIC	14-SOIC (0.154", 3.90mm Width)
SN74HC21DT IC GATE AND 2CH 4-INP 14SOIC Texas Instruments	14,359 In Stock 1,750 Marketplace	1 : ¥9.03000 Cut Tape (CT) 250 : ¥5.90088 Tape & Reel (TR) 628 : ¥3.49694 Bulk	74HC	Tape & Reel (TR) Cut Tape (CT) Digi-Reel® Bulk	Obsolete	AND Gate	2	4	-	2V ~ 6V	2 µA	5.2mA, 5.2mA	0.5V ~ 1.8V	1.5V ~ 4.2V	19ns @ 6V, 50pF	-40°C ~ 85°C	Surface Mount	14-SOIC	14-SOIC (0.154", 3.90mm Width)
CD74HCT21M IC GATE AND 2CH 4-INP 14SOIC Texas Instruments	335 In Stock	1 : ¥7.14000 Tube	74HCT	Tube	Obsolete	AND Gate	2	4	-	4.5V ~ 5.5V	2 µA	4mA, 4mA	0.8V	2V	27ns @ 4.5V, 50pF	-55°C ~ 125°C	Surface Mount	14-SOIC	14-SOIC (0.154", 3.90mm Width)

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Gates and Inverters

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.