ST485EBDR Low Power RS-485/RS-422 Transceiver

The ST485EBDR is a robust, low power transceiver for RS-485 and RS-422 communication from STMicroelectronics, designed to operate efficiently in multi-point data transmission systems. It is compliant with the EIA/TIA-485 standard and offers a bidirectional bus communication protocol, which is suitable for industrial networks, factory automation, and complex computing environments.

This transceiver operates from a single 5V power supply and features a low quiescent current, making it ideal for energy-sensitive applications. The ST485EBDR is capable of transmitting data at speeds up to 5 Mbps, ensuring high-speed information transfer over long distances with improved signal integrity.

The device's differential bus outputs and inputs are protected against ±15kV electrostatic discharge (ESD) shocks, without latch-up. This high level of protection ensures reliability and robustness in harsh electrical environments. Additionally, the ST485EBDR can handle up to 32 transceivers on the bus, which makes it highly suitable for complex network topologies.

The ST485EBDR comes in an 8-pin SOIC package, providing a compact solution that is easy to integrate into various designs. It features thermal shutdown protection, which prevents the device from overheating, and a low-power shutdown mode that reduces the supply current to less than 5μA, further conserving energy when the device is not in active use.

Other notable features of the ST485EBDR include a driver differential output that exceeds ±1.5V over the entire common-mode voltage range of -7V to +12V. The receiver input has a fail-safe feature that guarantees a known output state if the input is open circuit. This ensures that the transceiver maintains stable operation even under fault conditions.

In summary, the ST485EBDR from STMicroelectronics is a high-performance, low-power RS-485/RS-422 transceiver that offers robust data communication with ESD protection, making it an excellent choice for industrial and commercial applications requiring reliable data transmission.