Texas Instruments

SN74F521DW  

Linear Comparators

SN74F521DW Description

The SN74F521DW is an 8-bit identity comparator IC designed by Texas Instruments, a leading manufacturer in the electronics industry. This device is part of the 74F series and is specifically engineered to provide high-speed comparison of two 8-bit binary words. The SN74F521DW is ideal for applications requiring fast and reliable data comparison, making it a valuable component in various digital systems.

SN74F521DW Features

• Operating Temperature Range: The SN74F521DW operates within a temperature range of 0°C to 70°C, making it suitable for a wide range of ambient conditions.
• Max Propagation Delay: With a maximum propagation delay of 10ns at 5V and a maximum capacitive load of 50pF, this comparator ensures rapid data processing and minimal latency.
• Supply Voltage: The IC operates within a supply voltage range of 4.5V to 5.5V, providing flexibility in power supply requirements.
• Output Characteristics: The SN74F521DW features an active-low output, which is ideal for applications requiring a low signal to indicate a match between the two input words.
• Output Function: The primary function of this comparator is to determine if two 8-bit input words are identical (A=B), providing a straightforward and efficient comparison mechanism.
• Current Handling: The IC can handle an output current of 1mA for high signals and up to 20mA for low signals, ensuring robust performance under various load conditions.
• Compliance and Packaging: The SN74F521DW is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. It is available in a tube package, which is ideal for surface mount applications.
• Moisture Sensitivity Level: With an MSL of 1 (unlimited), the SN74F521DW is highly resistant to moisture, ensuring long-term reliability and performance.

SN74F521DW Applications

The SN74F521DW is particularly well-suited for applications that require fast and accurate data comparison. Some specific use cases include:

• Digital Systems: In digital systems where data integrity and speed are critical, the SN74F521DW can be used to compare data words in real-time, ensuring that the system operates efficiently and accurately.
• Memory Management: The comparator can be utilized in memory management systems to verify data consistency between memory locations, enhancing system reliability.
• Data Transmission: In data transmission systems, the SN74F521DW can be employed to compare transmitted and received data, ensuring that the data has been accurately conveyed without errors.
• Control Systems: In control systems, the comparator can be used to compare sensor inputs with predefined values, enabling precise control and monitoring.

Conclusion of SN74F521DW

The SN74F521DW from Texas Instruments is a high-performance 8-bit identity comparator that offers exceptional speed and reliability. Its low propagation delay and wide operating temperature range make it suitable for a variety of applications, from digital systems to control systems. The device's compliance with environmental and safety standards ensures that it meets the requirements of modern electronics manufacturing. With its robust performance and versatile applications, the SN74F521DW is an excellent choice for engineers and designers looking for a reliable and efficient comparator solution.

SN74F521DW Documents

Download datasheets and manufacturer documentation for SN74F521DW

EOL :

Product Discontinuance Notification (PDF)      

Images :

Mechanical Outline Drawing      

PCN :

Qualify New Assembly Material set for Selected Device(s) (PDF)      

Product Catalogs :

Logic Guide (Rev. AB)