STMicroelectronics

ST485EXN

ST485EXN Description

The ST485EXN is a high-performance transceiver designed for reliable data communication over RS422 and RS485 protocols. Manufactured by STMicroelectronics, this device is part of the ST485 family and features a robust design suitable for a wide range of industrial and commercial applications. The ST485EXN operates at a data rate of 5 Mbps, ensuring fast and efficient data transmission. It supports a supply voltage range of 4.75V to 5.25V, making it versatile for various power supply configurations.

This transceiver is designed with half-duplex communication in mind, allowing for bidirectional data transfer over a single pair of wires. The receiver hysteresis of 70 mV ensures stable and noise-resistant performance, crucial for maintaining data integrity in noisy environments. The ST485EXN is packaged in a through-hole mounting type, making it suitable for applications requiring robust mechanical stability and ease of integration into existing systems.

ST485EXN Features

• High Data Rate: The ST485EXN supports a data rate of 5 Mbps, ensuring rapid data transfer and efficient communication.
• Receiver Hysteresis: With a receiver hysteresis of 70 mV, the device offers enhanced noise immunity, making it ideal for use in environments with significant electrical noise.
• Half-Duplex Communication: The half-duplex capability allows for bidirectional communication over a single pair of wires, simplifying wiring and reducing costs.
• Wide Supply Voltage Range: The device operates within a supply voltage range of 4.75V to 5.25V, providing flexibility in power supply options.
• Through-Hole Mounting: The through-hole package ensures mechanical stability and ease of integration into various systems.
• Compliance and Safety: The ST485EXN is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the device is suitable for storage and handling in a wide range of environmental conditions.

ST485EXN Applications

The ST485EXN is ideal for a variety of applications requiring reliable and efficient data communication. Some specific use cases include:

• Industrial Automation: The robust design and high data rate make it suitable for use in industrial control systems, where reliable communication between devices is critical.
• Telecommunications: The device can be used in telecommunication infrastructure for data transmission over long distances, ensuring stable and noise-resistant performance.
• Data Acquisition Systems: The ST485EXN can be integrated into data acquisition systems to facilitate efficient data transfer from sensors to central processing units.
• Medical Equipment: Its compliance with environmental and safety standards makes it suitable for use in medical devices where reliable communication is essential.

Conclusion of ST485EXN

The ST485EXN is a versatile and reliable transceiver designed for efficient data communication over RS422 and RS485 protocols. Its high data rate, receiver hysteresis, and half-duplex communication capabilities make it an excellent choice for a wide range of applications. The through-hole mounting type and wide supply voltage range ensure ease of integration and flexibility in power supply options. With its compliance with environmental and safety standards, the ST485EXN is a robust solution for industrial, commercial, and medical applications.