STMicroelectronics

ST485XN

ST485XN Description

The ST485XN is a half-duplex transceiver designed for reliable high-speed data communication over long distances. Manufactured by STMicroelectronics, this IC features a single driver and a single receiver, making it ideal for applications requiring efficient data transmission. The ST485XN operates within a supply voltage range of 4.75V to 5.25V and supports a data rate of up to 5 Mbps, ensuring robust performance in various industrial and commercial settings. The device is housed in a through-hole package, specifically an 8DIP tube, which facilitates easy integration into existing systems. The ST485XN is compliant with the RS422 and RS485 protocols, ensuring compatibility with a wide range of communication standards. Additionally, it boasts a receiver hysteresis of 70 mV, which enhances noise immunity and reliability in noisy environments. The product is classified under ECCN EAR99 and HTSUS 8542.39.0001, and it is REACH unaffected and ROHS3 compliant, adhering to stringent environmental and safety regulations.

ST485XN Features

• High-Speed Data Transmission: With a data rate of up to 5 Mbps, the ST485XN ensures efficient and rapid data transfer, making it suitable for applications requiring high-speed communication.
• Robust Receiver Hysteresis: The 70 mV receiver hysteresis provides enhanced noise immunity, ensuring reliable data transmission even in noisy environments.
• Wide Supply Voltage Range: Operating within a supply voltage range of 4.75V to 5.25V, the ST485XN offers flexibility and compatibility with various power supply configurations.
• Half-Duplex Communication: The half-duplex mode allows for bidirectional communication over a single pair of wires, simplifying wiring and reducing cost.
• Compliance and Safety: The ST485XN is REACH unaffected and ROHS3 compliant, ensuring it meets environmental and safety standards, making it suitable for use in a wide range of industries.
• Industry-Standard Protocols: Support for RS422 and RS485 protocols ensures compatibility with a broad range of communication systems, enhancing its versatility.
• Through-Hole Mounting: The through-hole package type facilitates easy integration into existing systems, ensuring compatibility with traditional PCB designs.

ST485XN Applications

The ST485XN is ideal for a variety of applications where reliable and efficient data communication is essential. Its high-speed data transmission capabilities and robust receiver hysteresis make it suitable for industrial automation, where precise control and monitoring are required. The device's half-duplex communication mode and support for RS422 and RS485 protocols make it ideal for use in building automation systems, where multiple devices need to communicate over long distances. Additionally, the ST485XN's wide supply voltage range and through-hole mounting type ensure compatibility with various power supply configurations and traditional PCB designs, making it a versatile choice for a range of applications, including:

• Industrial Automation: For controlling and monitoring machinery and processes.
• Building Automation: For communication between various building systems such as HVAC, lighting, and security.
• Data Acquisition Systems: For collecting and transmitting data from remote sensors.
• Telecommunications: For data transmission in communication networks.

Conclusion of ST485XN

The ST485XN transceiver from STMicroelectronics is a reliable and efficient solution for high-speed data communication. Its robust features, including a high data rate, wide supply voltage range, and enhanced noise immunity, make it an ideal choice for a variety of applications. The device's compliance with industry standards and safety regulations ensures it meets the demands of modern electronics. While the ST485XN is now obsolete, its legacy continues to influence the design and development of future communication devices. For existing systems that still rely on this component, the ST485XN remains a dependable option for maintaining reliable data transmission.