The SIT3485ISO is a RS-485/RS-422 IC with a SOIC-16 package manufactured by SIT. It is a high-performance, low-power, and small-size transmitter and receiver line control designed for use in single and multi-point serial communication applications. It provides up to 1000 Kbps data rate with 128 byte FIFO buffer on each channel, allowing simultaneous transmit and receive operations. It is RoHS compliant and features adaptive bus biasing, built-in slew rate limiting, and undervoltage lockout protection. It is ideal for applications including industrial automation, building automation, energy management, medical, and consumer electronics.