Texas Instruments

SN74LS21NSR  

Gates and Inverters

SN74LS21NSR Description

The SN74LS21NSR is a high-performance, dual 4-input AND gate integrated circuit (IC) designed and manufactured by Texas Instruments. This device is part of the 74LS series, known for its reliable and robust performance in various electronic applications. With a surface-mount packaging, the SN74LS21NSR is ideal for space-constrained designs and offers excellent propagation delay characteristics.

SN74LS21NSR Features

• Logic Type: AND Gate
• Number of Inputs: 4
• Number of Circuits: 2
• Operating Temperature: 0°C to 70°C
• Voltage - Supply: 4.75V to 5.25V
• Max Propagation Delay @ V, Max CL: 20ns @ 5V, 15pF
• Input Logic Level - Low: 0.8V
• Input Logic Level - High: 2V
• Current - Output High, Low: 400µA, 8mA
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Mounting Type: Surface Mount
• Package: Tape & Reel (TR)
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected
• ECCN: EAR99
• HTSUS: 8542.39.0001

Unique features of the SN74LS21NSR include its ability to operate within a wide temperature range and its low propagation delay, making it suitable for high-speed applications. The device's low input logic levels and high output currents contribute to its versatility and reliability in various electronic systems.

SN74LS21NSR Applications

The SN74LS21NSR is ideal for applications that require high-speed signal processing and reliable logic operations. Some specific use cases include:

1. Digital Signal Processing: The SN74LS21NSR's high-speed performance makes it suitable for digital signal processing applications, such as audio and video processing systems.
2. Automotive Electronics: This IC can be used in automotive electronics for control systems, where reliability and performance are critical.
3. Telecommunications: The SN74LS21NSR can be employed in telecommunications equipment for signal processing and data transmission.
4. Industrial Control Systems: This IC is suitable for industrial control systems that require reliable and high-speed logic operations.

Conclusion of SN74LS21NSR

The SN74LS21NSR is a versatile and high-performance dual 4-input AND gate IC that offers excellent propagation delay characteristics and a wide operating temperature range. Its unique features, such as low input logic levels and high output currents, make it an ideal choice for various applications in the electronics industry, including digital signal processing, automotive electronics, telecommunications, and industrial control systems. With its RoHS3 compliance and REACH unaffected status, the SN74LS21NSR is also environmentally friendly, making it a responsible choice for electronic design engineers.

SN74LS21NSR Documents

Download datasheets and manufacturer documentation for SN74LS21NSR

Datasheets :

SN54LS21, SN74LS21      

PCN Packaging :

Carrier Tape Revision C 09/Apr/2015       Carrier Tape Revision A 06/Mar/2015      

HTML Datasheet :

SN54LS21, SN74LS21