SN74LS21 Series

2-ch, 4-input, 4.75-V to 5.25-V 16-mA drive strength bipolar AND gate

Catalog

2-ch, 4-input, 4.75-V to 5.25-V 16-mA drive strength bipolar AND gate

Part	Number of Inputs	Input Logic Level - Low	Package / Case	Package / Case [y]	Package / Case [x]	Mounting Type	Max Propagation Delay @ V, Max CL	Operating Temperature [Max]	Number of Circuits	Voltage - Supply [Min]	Voltage - Supply [Max]	Logic Type	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Input Logic Level - High	Input Logic Level - Low [Min]	Input Logic Level - Low [Max]	Supplier Device Package
Texas Instruments SN74LS21N	4	0.8 V	14-DIP	7.62 mm	0.3 "	Through Hole	20 ns	70 °C	2	4.75 V	5.25 V	AND Gate	400 µA	8 mA
Texas Instruments SN74LS21NS	4		14-SOIC	5.3 mm	0.209 "	Surface Mount	20 ns	70 °C	2	4.75 V	5.25 V	AND Gate	400 µA	8 mA	3.4 V	0.4 V	0.5 V	14-SO
Texas Instruments SN74LS21D	4	0.8 V	14-SOIC	3.9 mm	0.154 in	Surface Mount	20 ns	70 °C	2	4.75 V	5.25 V	AND Gate	400 µA	8 mA
Texas Instruments SN74LS21NSR	4	0.8 V	14-SOIC	5.3 mm	0.209 "	Surface Mount	20 ns	70 °C	2	4.75 V	5.25 V	AND Gate	400 µA	8 mA				14-SO
Texas Instruments SN74LS21DR	4	0.8 V	14-SOIC	3.9 mm	0.154 in	Surface Mount	20 ns	70 °C	2	4.75 V	5.25 V	AND Gate	400 µA	8 mA
Texas Instruments SN74LS21NG4	4	0.8 V	14-DIP	7.62 mm	0.3 "	Through Hole	20 ns	70 °C	2	4.75 V	5.25 V	AND Gate	400 µA	8 mA

Catalog

2-ch, 4-input, 4.75-V to 5.25-V 16-mA drive strength bipolar AND gate

Key Features

• Package Options Include Plastic "Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPsDependable Texas Instruments Quality and ReliabilityPackage Options Include Plastic "Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPsDependable Texas Instruments Quality and Reliability

Description

These devices contain two independent 4-input AND gates. The SN54LS21 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LS21 is characterized for operation from 0°C to 70°C. These devices contain two independent 4-input AND gates. The SN54LS21 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LS21 is characterized for operation from 0°C to 70°C.