ISL41387 - Dual Protocol (RS-232/RS-485) Transceivers
DATASHEET ISL81387, ISL41387 ±15kV ESD Protected, 5V, Dual Protocol (RS-232/RS-485) Transceivers FN6201 Rev 4.00 June 9, 2014 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 4.5V.
Four small 0.1µF capacitors are required for the charge pump.
The transceivers ar
ISL41387 Features
* "full fail-safe" operation, so the Rx output remains in a high state if the inputs are open or shorted together. The RS-485 transmitter supports up to three data rates, two of which are slew rate limited for problem free communications. The charge pump disables in
