SP3485EN-L/TR
Overview
The SP3485EN-L/TR is a low-power, half-duplex transceiver designed for RS-485 and RS-422 serial communication standards. It operates from a single 3.3V supply while maintaining compatibility with popular 5V logic interfaces. This IC is capable of data rates up to 10Mbps and features a low-current shutdown mode for power-sensitive applications.
Why Choose This Part
This transceiver provides a significant power advantage with a 2mA typical run current and a 50uA shutdown mode. It supports an extended common-mode input voltage range from -7V to +12V, ensuring robust performance in environments with ground potential differences. The 8-SOIC package offers a small footprint for high-density PCB designs while supporting high-speed 10Mbps signaling.
Applications
Key Specifications
Getting Started
To evaluate this part, connect the DI and RO pins to your microcontroller UART and use the DE and RE pins to manage bus directionality. Ensure a 120-ohm termination resistor is placed at the physical ends of the RS-485 bus to prevent signal reflections. Decouple the VCC pin with a 0.1uF ceramic capacitor placed as close to the IC as possible.
