The ISL3331EVAL1Z evaluation board is RoHS compliant and provides a quick and easy method for evaluating the ISL3331 BiCMOS interface IC. The board was designed to allow the user to evaluate all the features available on the ISL3331 single port, 3.3V, ±15kV ESD protected, dual protocol (RS-232/RS-485) transceiver.

By changing jumper positions, the user can quickly set the board to evaluate any of the ISL3331's many modes and features, and the input states can also be set via jumpers.


  • QFN version demonstrates all enhanced features:
    • Logic supply pin (VL)
    • Three RS-485 speed options - 115kbps/460kbps/20Mbps
    • Active low RS-485 Rx enable for simple direction control
  • Quick configuration using jumpers
  • State of all inputs can be set by jumper positions
  • No bus termination resistors; allows RS-232 or RS-485 evaluation
  • Simple operation requires only one 3.3V power supply



  • Gaming applications (e.g., slot machines)
  • Single board computers
  • Factory automation
  • Security networks
  • Industrial/Process control networks
  • Level translators (e.g., RS-232 to RS-422)
  • Point of sale (POS) equipment


Type Title Date
Manual - Development Tools PDF 690 KB
Datasheet PDF 1.39 MB
2 items