The SP489CT is a half-duplex RS-485 transceiver manufactured by Exar Corporation. It is designed for robust and reliable data communication in industrial environments. This transceiver is suitable for applications requiring data transmission over long distances, and it offers enhanced protection against electrostatic discharge (ESD), making it ideal for harsh industrial settings.

Applications:

• Industrial Control Systems
• Building Automation
• Motor Control
• Remote Sensor Networks
• Security Systems
• Point-of-Sale (POS) Terminals

Features:

• Half-Duplex RS-485 Transceiver
• Low Power Consumption
• Data Rates up to 10 Mbps
• ±15kV HBM ESD Protection
• Single 5V Supply
• Thermal Shutdown Protection
• Driver Output Short-Circuit Protection
• Receiver Input Hysteresis

Benefits:

• Reliable Communication: Offers robust data transmission in noisy industrial environments due to high ESD protection and receiver hysteresis.
• Energy Efficiency: Low power consumption makes it suitable for battery-powered applications or systems prioritizing energy conservation.
• High-Speed Data Transfer: Supports data rates up to 10 Mbps, enabling fast and efficient communication.
• Protection Against Damage: Built-in thermal shutdown and current limiting features protect the device from overheating and overcurrent conditions, ensuring long-term reliability.
• Simplified Integration: Single 5V supply simplifies design and integration into existing systems. The receiver input hysteresis improves noise rejection, enhancing overall system reliability.

The SP489CT is designed to meet the TIA/EIA-485 standard. It integrates a driver and a receiver in a single package. The differential driver ensures high noise immunity and enables communication over long distances. The receiver includes hysteresis to improve noise rejection and prevent false triggering. This part is available in an 8-pin SOIC package.