Hello @Anton_Kroessen
PIN 1 location please check from the Package & packing documents which can be downloaded on the product main page:
https://www.nxp.com/products/interfaces/ic-spi-i3c-interface-devices/general-purpose-i-o-gpio/remote...
If you will need any particular visual check of your parts, please contact directly your distributor/point of sale where did you buy your parts, they are authorized to help with such a kind of request. But if you bought your parts from authorized NXP distributors, there is no doubts the parts are genuine. However if there is any reason, please contact them and they will help.
NXP need to verify your purchase firstly. Please contact the distributor and provide them the order number and the reason for the question about the marking, then they will submit us a ticket with their distributor email account. They are authorized/responsible to help with such a request.
NXP does not provide support for purchases made from unauthorized sources, including warranty support, failure analysis, marking or trace code verification.
NXP Anti-Counterfeit Products Policy
https://www.nxp.com/company/about-nxp/quality:QUALITY_HOME
https://www.nxp.com/support/sample-and-buy/distributor-network:DISTRIBUTORS
Thank you
