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MAX13451E INV pin floating

Category: Hardware
Product Number: MAX13451E


I'm currently using MAX13451E half-duplex transceiver. I thought that the INV function was interesting until I realized that it doesn't invert the fail-safe operation in RS485. 

1- Is there any possible issue to leave the INV pin floating ? I couldn't find information in the datasheet about whether there is an internal pull down or not.

2- Say I would like to be able to invert the polarity of the RS422/485 Bus and also have an inverted failsafe operation , do you know if any IC equivalent to MAX13451 (pin compatible) exist ? 

I can provide more details if required

Kind regards

added tag LMXMprodsupport
[edited by: GenevaCooper at 10:37 PM (GMT -5) on 22 Feb 2023]