STMicroelectronics

ST485ERXDR

ST485ERXDR Description

The ST485ERXDR is a half-duplex transceiver designed for robust and reliable data transmission over RS422 and RS485 protocols. Manufactured by STMicroelectronics, this integrated circuit (IC) features a single driver and receiver, making it suitable for applications requiring efficient communication over long distances. The ST485ERXDR operates within a supply voltage range of 4.75V to 5.25V and supports a data rate of up to 2.5Mbps, ensuring high-speed data transfer with minimal latency.

ST485ERXDR Features

• Number of Drivers/Receivers: 1/1, providing a balanced and efficient communication interface.
• Receiver Hysteresis: 70 mV, ensuring stable and reliable signal reception even in noisy environments.
• Duplex Mode: Half-duplex, allowing for bidirectional communication over a single pair of wires, which is ideal for applications with limited wiring space.
• Supply Voltage: 4.75V to 5.25V, offering flexibility in power supply requirements.
• Data Rate: Up to 2.5Mbps, supporting high-speed data transmission for real-time applications.
• Package Type: Tape & Reel (TR), facilitating easy handling and assembly in surface mount applications.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), ensuring the IC is suitable for various environmental conditions without the need for special handling.
• Compliance: REACH Unaffected and ROHS3 Compliant, meeting stringent environmental and safety standards.
• Mounting Type: Surface Mount, ideal for compact and space-efficient designs.
• Product Status: Obsolete, indicating that while it is no longer in production, it remains a reliable choice for existing systems and legacy applications.

ST485ERXDR Applications

The ST485ERXDR is well-suited for a variety of industrial and commercial applications where reliable data communication is crucial. Some specific use cases include:

• Industrial Automation: For communication between PLCs (Programmable Logic Controllers) and sensors or actuators in factory automation systems.
• Building Automation: In HVAC (Heating, Ventilation, and Air Conditioning) systems for monitoring and control of environmental parameters.
• Transportation Systems: For data transmission in vehicle control systems, such as CAN bus interfaces.
• Telecommunications: In remote monitoring and control systems for communication infrastructure.
• Medical Equipment: For data transfer in medical devices requiring reliable and accurate communication.

Conclusion of ST485ERXDR

The ST485ERXDR from STMicroelectronics is a versatile half-duplex transceiver that offers robust performance and reliability for RS422 and RS485 communication protocols. With its high data rate, stable receiver hysteresis, and flexible supply voltage range, it is an excellent choice for applications requiring efficient and reliable data transmission. Despite its obsolete status, the ST485ERXDR remains a reliable option for existing systems and legacy applications, ensuring continued support for critical communication needs.