DATASHEET ISL3330, ISL3331 3.3V, ±15kV ESD Protected, Dual Protocol (RS-232/RS-485) Transceivers FN6361 Rev 0.00 May 20, 2008 These devices are BiCMOS interface ICs that are user configured as either a single RS-422/RS-485 differential transceiver, or as a dual (2 Tx, 2 Rx) RS-232 transceiver.
In RS-232 mode, the on-board charge pump generates RS-232 compliant ±5V Tx output levels, from a supply as low as 3.15V.
Four small 0.1µF capacitors are required for the charge pump.
The transceivers ar
