12-08-2019 06:05 PM
I found there is a rectangle mark at the left bottom TOP MARK of XC6SLX9-3CSG324C(as shown in the attached pic), this confused me because I never saw such mark on the same parts we bought before, and I can not find any PCN to clarify this,could you kindly provide Xilinx official docs to explain the meaning of such rectangle mark?
01-02-2020 11:12 AM
Those are not "legit" Xilinx parts, but very likely engineering samples getting introduced in your supply chain. Andrew "bunnie" Huang has talked about seeing something similar happening to him during the Novena bring-up: https://youtu.be/RqQhWitJ1As?t=268
My best recommendation is to get in touch with Xilinx and your supplier.
01-03-2020 02:13 AM
The correct updated package marking is provided in UG385 (v2.4) (Page 355~356).
I agree with @yannickl this part does not seems to be authentic.