Texas Instruments

SN74ALS521DWR  

Linear Comparators

SN74ALS521DWR Description

The SN74ALS521DWR is an Identity Comparator IC from Texas Instruments, designed to provide high-performance comparison of 8-bit data inputs. This device is part of the 74ALS series, renowned for its reliability and efficiency in digital circuits. The SN74ALS521DWR operates within a supply voltage range of 4.5V to 5.5V, ensuring compatibility with standard digital systems. It features an active-low output, which simplifies integration into various electronic designs. The output function of the SN74ALS521DWR is specifically designed to indicate when the two 8-bit inputs are identical (A=B), making it ideal for applications requiring precise data comparison.

SN74ALS521DWR Features

• Operating Temperature Range: The SN74ALS521DWR is designed to operate within a temperature range of 0°C to 70°C, making it suitable for a wide range of industrial and commercial applications.
• Max Propagation Delay: With a maximum propagation delay of 20ns at 5V and 50pF, the SN74ALS521DWR ensures fast and reliable data comparison, crucial for high-speed digital systems.
• Mounting Type: The surface-mount package type facilitates easy integration into compact and high-density PCB designs.
• Output Current: The SN74ALS521DWR can source 2.6mA and sink 24mA, providing robust output capabilities suitable for driving various loads.
• Moisture Sensitivity Level (MSL): Rated at MSL 1 (Unlimited), the SN74ALS521DWR is highly resistant to moisture, enhancing its reliability in diverse environmental conditions.
• Compliance: The SN74ALS521DWR is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards.
• Packaging: Available in Tape & Reel (TR) packaging, the SN74ALS521DWR is ideal for automated assembly processes, reducing production costs and improving efficiency.

SN74ALS521DWR Applications

The SN74ALS521DWR is highly versatile and finds applications in various sectors, including:

• Data Processing Systems: Ideal for comparing data in memory systems, ensuring data integrity and consistency.
• Digital Signal Processing: Used in signal processing applications where precise data comparison is required.
• Communication Systems: Ensures accurate data transmission by verifying the integrity of transmitted data.
• Automotive Electronics: Used in automotive control systems for data validation and error detection.
• Industrial Automation: Provides reliable data comparison in industrial control systems, enhancing system accuracy and reliability.

Conclusion of SN74ALS521DWR

The SN74ALS521DWR is a high-performance Identity Comparator IC that offers significant advantages over similar models. Its fast propagation delay, robust output capabilities, and wide operating temperature range make it a reliable choice for a variety of applications. The surface-mount package and compliance with environmental standards further enhance its suitability for modern electronic designs. Whether used in data processing, communication systems, or industrial automation, the SN74ALS521DWR ensures precise and efficient data comparison, making it an essential component in high-performance digital circuits.

SN74ALS521DWR Documents

Download datasheets and manufacturer documentation for SN74ALS521DWR

Datasheets :

SN54ALS520, SN74ALS518/520/521      

HTML Datasheet :

SN54ALS520, SN74ALS518/520/521      

PCN Design/Specification :

Material Set 21/Jun/2016