SIT75176B is a RS-485 transceiver with 3.0V~5.5V power supply, bus port ESD protection HBM up to 15kV, bus voltage range up to ±15V, half duplex, low power consumption, and fully meet the requirements of TIA/EIA-485 standard, allowing up to 32 nodes to connect to the bus at the same time. SIT75176B includes a driver and a receiver, both of which can be enabled and closed independently. When both are disabled, both the driver and the receiver output are high resistance state. It can realize error-free data transmission up to 10Mbps. SIT75176B has a working voltage range of 3.0~5.5V, and has the functions of fail-safe, current-limiting protection, over-voltage protection and other functions.