The ISL31483E, ISL31485E and ISL31486E include cable invert functions that reverse the polarity of the Rx and/or Tx bus pins in case the cable is misconnected. Unlike competing devices, Rx full fail-safe operation is maintained even when the Rx input polarity is switched. The ISL31480E and ISL31486E feature a logic supply (VL) pin that sets the VOH of the Rx outputs, and the switching points of the logic input pins, to be compatible with a lower supply voltage (down to 1.8V) in mixed voltage systems. See Table 1 on page 2 for key features and configurations by device number.