Can someone point me to the secret decoder ring for date/lot codes marked on MC34VR500V3ES packages? This is the PMIC for the QorIQ LS1/T1 family of communications processors.
For example what's the difference between 'XAACHC" and 'XAADNA' - I assume these encode place of manufacture, chip revision, manufacture date, etc.
Thanks in advance - I can't find it in the documentation I have.
Part number of MC34VR500V3ES has five lines of markings. The markings are:
Line 1 = Freescale/NXP Logo
Line 2 = M34VR (Family name)
Line 3 = 500V3ES (family name + OTP Version)
Line 4 = Internal codes used to track manufacturing activities
Line 5 = Pin 1 mark
Regarding the decode details of the marking 'XAACHC’ and 'XAADNA', unfortunately, this is information that we cannot share, but I can tell you what does that means:
The six characters are referenced as AWLYWZ where
A = ASSEMBLY SITE
WL = WAFER LOT NO.
Y = YEAR CODE
W = WORK WEEK CODE
Z = LOT SPLIT
So, taking this in mind, we know that both PIMCs are from the same assembly site, same wafer lot no., different manufactured date, and different lot split.
'XAACHC’ = 2015, week 8
'XAADNA' = 2015 week 40
I hope this helps.