The ISL32704EVAL1Z board enables the evaluation of the ISL32704E isolated, half-duplex RS-485 transceiver in a typical bus node application, used in isolated industrial networks.

The ISL32704E is a galvanically isolated, differential bus transceiver designed for bidirectional data transmission and meeting the RS-485 and RS-422 standards for balanced communication. Each of the bus terminals, A and B, is protected against ±15kV ESD strikes without latch-up.

The device uses giant magnetoresistance (GMR) as isolation technology. A unique ceramic/polymer composite barrier provides excellent isolation and virtually unlimited barrier life.


  • Tiny isolated RS-485 transceiver
  • Drive capability of up to 32 x 1UL-transceivers
  • Isolated 3.3V to 5V DC/DC converter with regulated output
  • Small total device footprint of 183mm2



  • Factory automation
  • Security networks
  • Building environmental control systems
  • Industrial/Process control networks
  • Level translators (i.e., RS-232 to RS-485)


Type Title Date
Manual - Development Tools PDF 513 KB
Datasheet PDF 833 KB
2 items

Design & Development

Software & Tools

Software Downloads

Type Title Date
PCB Design Files ZIP 375 KB
1 item