SIT485E is a RS-485 transceiver with 5V power supply, half duplex, low power consumption, and fully meet the requirements of TIA / EIA-485 standard.  SIT485E 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. SIT485E has 1/8 load, which allows 256 SIT485E transceivers to be connected to the same communication bus. Using a voltage-limiting swing rate driver that significantly reduces EMI and reflection due to inappropriate terminal-matching cables, 32 nodes can achieve a communication rate of 2. 5Mbps. SIT485E has a working voltage range of 4.75~5.25V, and has the functions of fail-safe, overtemperature protection, current-limiting protection, over-voltage protection and hot-swap input control functions. SIT3085E has excellent ESD release ability, HBM up to ±15kV, contact discharge ±15kV that meet IEC61000-4-2