Texas Instruments

SN74ALS521N  

Linear Comparators

SN74ALS521N Description

The SN74ALS521N is an 8-bit identity comparator from the 74ALS series, manufactured by Texas Instruments. This through-hole mounted IC operates within a supply voltage range of 4.5V to 5.5V and is designed for applications requiring high-speed data comparison. The device features a maximum propagation delay of 20ns at 5V with a maximum load capacitance of 50pF, ensuring rapid and reliable data processing. The SN74ALS521N is housed in a tube package and is compliant with both REACH and RoHS3 standards, making it suitable for a wide range of industrial and commercial applications. It operates within an ambient temperature range of 0°C to 70°C and is classified under HTSUS code 8542.39.0001. The output function of the SN74ALS521N is active low, providing an "A=B" output signal, and it can handle output currents of up to 2.6mA high and 24mA low. This identity comparator is ideal for applications where data integrity and speed are critical.

SN74ALS521N Features

• High-Speed Performance: With a maximum propagation delay of 20ns at 5V and 50pF, the SN74ALS521N ensures rapid data comparison, making it suitable for high-speed digital systems.
• Wide Operating Voltage Range: The device operates within a supply voltage range of 4.5V to 5.5V, providing flexibility in power supply requirements.
• Active Low Output: The active low output function simplifies circuit design and integration, particularly in systems requiring low-level signaling.
• Robust Current Handling: The SN74ALS521N can handle output currents of up to 2.6 highmA and 24mA low, ensuring reliable operation even under varying load conditions.
• Compliance and Reliability: The device is REACH unaffected and RoHS3 compliant, ensuring environmental safety and reliability in various applications.
• Through-Hole Mounting: The through-hole mounting type facilitates easy installation and integration into existing systems, enhancing mechanical stability and durability.

SN74ALS521N Applications

The SN74ALS521N is ideal for a variety of applications where data comparison and integrity are crucial. Some specific use cases include:

• Digital Systems: Ideal for use in digital systems requiring high-speed data comparison, such as microprocessors, memory systems, and data transmission interfaces.
• Industrial Automation: Suitable for industrial applications where reliable and rapid data processing is essential, such as in control systems and automated manufacturing processes.
• Telecommunications: Useful in telecommunications equipment for data integrity checks and error detection in high-speed data streams.
• Consumer Electronics: Applicable in consumer electronics for data comparison tasks, such as in digital signal processing and data validation circuits.

Conclusion of SN74ALS521N

The SN74ALS521N from Texas Instruments is a robust and reliable 8-bit identity comparator designed for high-speed data comparison applications. Its low propagation delay, operating wide voltage range, and active low output function make it a versatile choice for various digital systems. The device's compliance with REACH and RoHS3 standards ensures environmental safety and reliability, making it suitable for a wide range of industrial and commercial applications. Whether used in digital systems, industrial automation, telecommunications, or consumer electronics, the SN74ALS521N provides a high-performance solution for data comparison needs.

SN74ALS521N Documents

Download datasheets and manufacturer documentation for SN74ALS521N

Datasheets :

SN54ALS520, SN74ALS518/520/521      

HTML Datasheet :

SN54ALS520, SN74ALS518/520/521      

PCN Design/Specification :

Copper Bond Wire Revision A 04/Dec/2013       Material Set 30/Mar/2017