IThe SIT485EESA is a SO-8 RoHS electronic part manufactured by SITI. It is an integrated circuit (IC) designed for communicating over long distances using RS-485/RS-422 protocols. It offers improved conversion performance between the data bus and the serial port, and allows for easy connection to other systems for data communication. The IC features both differential data transmission and reception capability, which ensures reliable data delivery over long distances. It is compliant with the RoHS regulation and has a wide range of applications including building automation, industrial automation, and meters.