Sit490e is a 4.5V ~ 5.5V power supply, full duplex, low power consumption, fully meet the requirements of TIA / eia-485 standard RS-485 transceiver. The sit490e consists of a driver and a receiver, both of which transmit signals independently. Sit490e has 1 / 8 load, which allows 256 sit490e transceivers to be connected to the same communication bus. It can realize error free data transmission up to 14mbps. The operating voltage range of sit490e is 3.0V ~ 5.5V. It has the functions of fail safe, current limiting protection, overvoltage protection, hot plug input of control port, etc. Sit490e has excellent ESD release capability and HBM reaches ± 15kV.