3.3V, ±15kV ESD Protected, Dual Protocol (RS-232/RS-485) Transceivers ISL3330, ISL3331 Data Sheet May 20, 2008 FN6361.0 3.3V, ±15kV ESD Protected, Dual Protocol Features (RS-232/RS-485) Transceivers User Selectable RS-232 or RS-485/RS-422 Interface Port These devices are BiCMOS interface ICs that are user (Two RS-232 Transceivers or One RS-485/RS-422 configured as either a single RS-422/RS-485 differential Transceiver) transceiver, or as a dual (2 Tx, 2 Rx……