Texas Instruments

SN74ALS688DW  

Linear Comparators

SN74ALS688DW Description

The SN74ALS688DW 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 and is housed in a surface-mount package, specifically a tube format. It operates within a supply voltage range of 4.5V to 5.5V and is suitable for use in environments with an operating temperature range of 0°C to 70°C. The SN74ALS688DW is currently in the "Last Time Buy" product status, indicating that it is in the final stages of its production lifecycle.

SN74ALS688DW Features

The SN74ALS688DW offers several key technical specifications and performance benefits:

• Max Propagation Delay: The device boasts a maximum propagation delay of 20ns at 5V with a maximum capacitive load of 50pF. This ensures rapid signal processing and high-speed operation, making it ideal for applications requiring quick data comparison.
• Output Function: The comparator provides an "A=B" output function, indicating that the output is active low when the two 8-bit inputs are identical. This feature simplifies the design of digital systems that require precise data matching.
• Current Handling: The SN74ALS688DW can handle an output current of 2.6mA when high and 24mA when low, providing robust performance and reliability in various circuit configurations.
• Compliance and Safety: The device is REACH unaffected and ROHS3 compliant, ensuring it meets stringent environmental and safety standards. Additionally, it has a moisture sensitivity level (MSL) of 1, indicating unlimited exposure to moisture, which enhances its durability in diverse environmental conditions.
• Packaging and Mounting: The surface-mount package makes it suitable for automated assembly processes, reducing production costs and improving manufacturing efficiency.

SN74ALS688DW Applications

The SN74ALS688DW is well-suited for a variety of applications where high-speed data comparison and reliability are critical. Some specific use cases include:

• Data Processing Systems: Ideal for comparing large volumes of data in real-time, ensuring accurate and efficient data handling in computing and communication systems.
• Memory Management: Useful in memory systems where data integrity and quick comparison of stored and incoming data are essential.
• Digital Signal Processing: The high-speed operation of the SN74ALS688DW makes it suitable for applications involving digital signal processing, such as in audio and video equipment.
• Automotive Electronics: Given its robustness and compliance with environmental standards, it can be used in automotive systems where reliability and performance are paramount.

Conclusion of SN74ALS688DW

The SN74ALS688DW is a versatile and high-performance 8-bit identity comparator IC from Texas Instruments. Its low propagation delay, robust current handling capabilities, and compliance with environmental standards make it a reliable choice for a wide range of digital applications. While it is currently in the "Last Time Buy" status, the SN74ALS688DW remains a valuable component for engineers and designers looking to integrate high-speed, reliable data comparison into their systems. Its surface-mount package and compatibility with automated assembly processes further enhance its appeal for modern electronics manufacturing.

SN74ALS688DW Documents

Download datasheets and manufacturer documentation for SN74ALS688DW

Datasheets :

SN54ALS688, SN74ALS688      

PCN Obsolescence/ EOL :

Mult Dev EOL 30/Aug/2023      

PCN Design/Specification :

Material Set 21/Jun/2016