Hi Amiliy
I wonder where you ordered the parts?
If you ordered the parts from NXP or NXP distributor, the mask should be on the top of the screen. Can you check the top screen? What is it?
Jun Zhang
Where did you buy these parts from?
We can only guarantee the chip quality if you buy it from our official distributor.
the part mask itself from different batch may look a bit different, we can' t judge it's quality from the outlook apprearence.
I can't see problem from the top mask. From the print the manufacture date is 2021, week21.
But as I said, we can't say the chip is real or fake, or good or bad just from the package print (top or bottom). These may different based on different assy lot.
If you order the parts from our below distributor, these parts have no issue. Otherwise, we can't guarantee. Thanks for your understanding.
https://www.nxp.com/support/sample-and-buy/distributor-network:DISTRIBUTORS#CHINA