Renesas Electronics Corporation Fault Protected, Extended CMR, RS-485/RS-422 Transceivers with Cable Invert and ±16.5kV ESD ISL32485EIBZ-T7A

The ISL32483E and ISL32485E are fault protected, 5V powered differential transceivers that exceed the RS-485 and RS-422 standards for balanced communication. The RS-485 transceiver pins (driver outputs and receiver inputs) are fault protected up to ±60V and are protected against ±16.5kV ESD strikes without latch-up. Additionally, the extended common mode range allows these transceivers to operate in environments with common mode voltages up to ±25V (2X the RS-485 requirement), making this fault-protected RS-485 family one of the most robust on the market.
Transmitters (Tx) deliver an exceptional 2.5V (typical) differential output voltage into the RS-485 specified 54O load. This yields better noise immunity than standard RS-485 ICs or allows up to six 120O terminations in star network topologies.
Receiver (Rx) inputs feature a “full fail-safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or on a terminated but undriven (idle) bus.
The ISL32483E and ISL32485E 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.
For fault protected RS-485 transceivers without the cable invert function, please see the ISL32470E and ISL32490E datasheets.

RS-422/RS-485 Interface IC 8LD OVP -40+85 5V PO LARITY REV 1/2 DUP