The ST485CN is a robust and versatile low power transceiver for RS-485 and RS-422 communications, manufactured by STMicroelectronics. This integrated circuit is designed to provide bidirectional data communications on multipoint bus transmission lines and is compliant with both RS-485 and RS-422 standards.

Key Features

• Low Quiescent Current: The ST485CN is optimized for low power consumption, drawing a very low quiescent current, which makes it ideal for energy-sensitive applications.
• Wide Differential Bus Voltage Range: Its wide range of bus voltages allows for flexible deployments in various systems with different power levels.
• High Data Rate: Capable of operating at speeds up to 5 Mbps, this transceiver is suitable for high-speed data communication requirements.
• Thermal Shutdown Protection: The device includes a thermal shutdown feature that protects it from damage due to excessive power dissipation.
• Driver Short-Circuit Current Limiting: In-built current limiting for the driver ensures additional safety and reliability for the connected systems.
• Fail-Safe Receiver: The receiver can handle open, shorted, or terminated but idle data lines, maintaining high integrity in data communication under fault conditions.

Applications

The ST485CN is a practical choice for a wide range of applications, including:

• Industrial Control Systems
• Building Automation
• Networked Security Cameras
• Data Communication Systems
• Packet Switched Networks

Package and Quality

STMicroelectronics offers the ST485CN in an 8-pin plastic DIP package, ensuring ease of integration into various designs. The device is characterized for operation from -40°C to 85°C, making it suitable for industrial environments. Furthermore, it is designed to meet or exceed the stringent requirements of the automotive industry's standard quality management system, making it a reliable choice for automotive applications as well.

With its combination of low power consumption, high-speed data transfer, and robust protection features, the ST485CN from STMicroelectronics represents a proven solution for reliable data communication in critical applications.