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80
PostPosted: Sun Jan 20, 2013 10:45 pm 
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Joined: Fri Dec 21, 2012 3:53 pm
Posts: 15
XMOS chip's Part Marking scheme is:

USMMYYFN QS
LLLLLL.LL

My questions:
1) what means "US", it means United States?
2) what means "MM", it is 2 digital month?
3) what means "YY", it is 2 digital year?
4) what is LLLLLL.LL, the lot code.

Thank you!


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2445
PostPosted: Mon Jan 21, 2013 2:08 am 
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XCore Expert
Joined: Sun Jul 11, 2010 1:31 am
Posts: 752
licall wrote:
XMOS chip's Part Marking scheme is:

USMMYYFN QS
LLLLLL.LL

That's the part marking for newer L-series chips.

Quote:
My questions:
1) what means "US", it means United States?

The SU-series chips have SK there. I don't find it likely that XMOS has their
chips manufactured in the USA and Slovakia. It probably does identify the
factory in some way though.

Quote:
2) what means "MM", it is 2 digital month?
3) what means "YY", it is 2 digital year?

It does seem the MMYY part identifies a date, but it seems to be in YYWW
format (year and week of the year).

Quote:
4) what is LLLLLL.LL, the lot code.

It's a number (well, alphanumerical actually) that identifies the batch of
chips this belongs to. The trailing LL seems to be 00 usually.


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80
PostPosted: Mon Jan 21, 2013 2:58 am 
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Joined: Fri Dec 21, 2012 3:53 pm
Posts: 15
Hi, Segher, thank you!


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1729
PostPosted: Mon Jan 21, 2013 11:30 am 
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XMOS Employee
Joined: Thu Dec 10, 2009 9:20 pm
Posts: 427
Just to let you know, this is described in the data sheet(s)


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