The minimum recommended supply voltage is 3 V. At lower voltages, correct operation is not guaranteed.

There are RS-485 transceivers with integrated level shifters for the logic signals like the THVD1424, but they still need a 3.3 V supply to generate the bus voltages.

Hi Daniel,

Unfortunately, this part is rated to function at a minimum of 3 V. There is a chance that it won't read logic levels or function properly with a VCC of only 2.5 V.

Please reach out with anything else.

Zach