SIT488E is a 4. 5V~5. 5V powered, full-duplex, low power dissipation RS-485 transceiver fully meeting the requirements of RS-485/RS-422 standard. SIT488E contains one driver and one receiver, both can transmit signals independently. The SIT488E has a 1/8-unit-load. It allows up to 256 transceivers on the bus and error-free data transmission up to 1Mbps. SIT488E has a working voltage range of 4. 5V~5. 5V, with the functions of current-limiting protection, over-voltage protection, control port hot plug input, etc. SIT488E has excellent ESD release capability, and HBM reaches ±16kV.