STMicroelectronics

ST485ABN

ST485ABN Description

The ST485ABN is a half-duplex transceiver designed for reliable data transmission in industrial and commercial applications. Manufactured by STMicroelectronics, this interface IC chip is part of the ST485 family and is packaged in a through-hole 8DIP format. The ST485ABN is suitable for RS422 and RS485 protocols, offering a data rate of up to 50 Mbps. It operates within a supply voltage range of 4.5V to 5.5V and features a receiver hysteresis of 70 mV, ensuring robust performance in noisy environments. The product is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. With a moisture sensitivity level (MSL) of 1 (unlimited), the ST485ABN is highly reliable and suitable for a wide range of operating conditions. Although the product is now obsolete, it remains a reliable choice for legacy systems and applications requiring robust data communication.

ST485ABN Features

• Half-Duplex Operation: The ST485ABN operates in half-duplex mode, allowing for efficient data transmission in both directions over a single pair of wires. This feature is particularly beneficial in applications where bidirectional communication is required without the complexity of full-duplex systems.
• High Data Rate: With a data rate of up to 50 Mbps, the ST485ABN ensures fast and reliable data transfer, making it suitable for high-speed communication needs.
• Receiver Hysteresis: The 70 mV receiver hysteresis enhances noise immunity, ensuring stable and accurate signal reception even in noisy environments.
• Wide Supply Voltage Range: The ST485ABN operates within a supply voltage range of 4.5V to 5.5V, providing flexibility and compatibility with various power supply configurations.
• Environmental Compliance: Being REACH unaffected and RoHS3 compliant, the ST485ABN meets the highest environmental and safety standards, making it suitable for use in a wide range of industries.
• Moisture Sensitivity Level: With an MSL of 1 (unlimited), the ST485ABN is highly resistant to moisture, ensuring long-term reliability and performance in humid or damp conditions.
• Through-Hole Mounting: The through-hole mounting type ensures secure and reliable installation on printed circuit boards, making it ideal for applications requiring robust mechanical stability.

ST485ABN Applications

The ST485ABN is ideal for a variety of applications requiring reliable and efficient data communication. Some specific use cases include:

• Industrial Automation: The ST485ABN is well-suited for industrial automation systems where robust and reliable data transmission is crucial. Its high data rate and noise immunity make it ideal for applications involving programmable logic controllers (PLCs), human-machine interfaces (HMIs), and other industrial equipment.
• Telecommunications: In telecommunications infrastructure, the ST485ABN can be used for data transmission between various components, ensuring fast and reliable communication. Its half-duplex operation and wide supply voltage range make it a versatile choice for a range of telecom applications.
• Transportation Systems: The ST485ABN's robustness and reliability make it suitable for transportation systems, such as train control systems, traffic management systems, and other applications where data integrity and transmission speed are critical.
• Commercial and Consumer Electronics: The ST485ABN can be used in commercial and consumer electronics applications, such as point-of-sale (POS) systems, digital signage, and other devices requiring reliable data communication.

Conclusion of ST485ABN

The ST485ABN is a robust and reliable half-duplex transceiver designed for efficient data transmission in a variety of applications. Its high data rate, receiver hysteresis, and wide supply voltage range make it a versatile choice for industrial, commercial, and consumer electronics applications. Despite being obsolete, the ST485ABN remains a reliable option for legacy systems and applications requiring robust data communication. With its environmental compliance and moisture sensitivity level, the ST485ABN ensures long-term reliability and performance in various operating conditions.