Texas Instruments

SN74ALS520N  

Linear Comparators

SN74ALS520N Description

The SN74ALS520N is an 8-bit identity comparator IC designed for high-performance digital applications. Manufactured by Texas Instruments, this device is part of the 74ALS series, renowned for its robustness and reliability in digital circuits. The SN74ALS520N operates within a supply voltage range of 4.5V to 5.5V and is specified to function efficiently within an operating temperature range of 0°C to 70°C. Its maximum propagation delay is 20ns at 5V with a maximum capacitive load of 50pF, ensuring rapid signal processing and minimal latency. The device features an active-low output, providing a clear indication when the two 8-bit inputs are identical (A=B). The SN74ALS520N is housed in a through-hole package, specifically a 20-pin DIP (Dual In-line Package), making it suitable for both prototyping and production environments. It is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. The device offers a maximum output current of 2.6mA for high-level outputs and 24mA for low-level outputs, ensuring robust signal drive capabilities.

SN74ALS520N Features

• High-Speed Performance: With a maximum propagation delay of 20ns at 5V and 50pF, the SN74ALS520N ensures rapid and efficient signal processing, making it ideal for high-speed digital systems.
• Wide Operating Voltage Range: The device operates reliably within a supply voltage range of 4.5V to 5.5V, providing flexibility in power supply design.
• Active-Low Output: The active-low output configuration simplifies circuit design and integration, especially in systems requiring clear and distinct signal states.
• Robust Output Current Capability: The SN74ALS520N can drive outputs with a maximum current of 2.6mA for high-level and 24mA for low-level outputs, ensuring strong signal integrity.
• Through-Hole Packaging: The 20-pin DIP package is suitable for both prototyping and production, offering ease of installation and integration into various circuit boards.
• Environmental Compliance: The device is REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental and safety standards.
• Identity Comparator Function: The SN74ALS520N provides an identity comparison function (A=B), making it ideal for applications requiring precise data matching and validation.

SN74ALS520N Applications

The SN74ALS520N is well-suited for a variety of applications where high-speed data comparison and validation are critical. Some specific use cases include:

• Digital Signal Processing: In systems requiring rapid comparison of digital signals, such as in data transmission and communication protocols.
• Memory Systems: For validating data integrity in memory modules, ensuring that stored and retrieved data match.
• Microprocessor Systems: In microprocessor-based systems, the SN74ALS520N can be used to compare address or data buses, ensuring accurate data handling and processing.
• Automotive Electronics: In automotive applications, the device can be used for real-time data comparison and validation, contributing to enhanced system reliability and safety.
• Industrial Control Systems: For comparing control signals in industrial automation, ensuring precise and reliable operation of machinery and processes.

Conclusion of SN74ALS520N

The SN74ALS520N is a versatile and high-performance 8-bit identity comparator IC from Texas Instruments, offering a combination of speed, reliability, and environmental compliance. Its robust output current capability, wide operating voltage range, and active-low output configuration make it an excellent choice for a variety of digital applications. Whether used in digital signal processing, memory systems, or industrial control, the SN74ALS520N provides a reliable and efficient solution for precise data comparison and validation. Its through-hole packaging and compliance with environmental standards further enhance its suitability for both prototyping and production environments.

SN74ALS520N Documents

Download datasheets and manufacturer documentation for SN74ALS520N

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