Number printed on IC meaning

[lpcware]

Content originally posted in LPCWare by aamir ali on Mon Dec 17 04:20:54 MST 2012
I have LPC1317-64P, & some no written on it, what do they mean:

LPC1317[U]F
S62526
04
ZSD12012BY[/U]

[lpcware]

Content originally posted in LPCWare by cfb on Mon Dec 17 05:52:24 MST 2012
See page 3 of the LPC131x Errata sheet for an explanation of the significant parts of these numbers:

http://www.nxp.com/documents/errata_sheet/ES_LPC131X_4X.pdf