Why week code on label are not correspond with the week code on chip marking? S29AL016J70BFI010

[Dorothy-Keming]

Hello, we bought S29AL016J70BFI010 from Mouser,  week code on label is 2306+, but chip marking show 2308+, who can help to advice why weekcode are different?

[AlbertB_56 · Accepted solution]

Hello Dorothy,

Thank you for contacting Infineon Technologies.

The four-digit "2306" date code is the "package assembly" date code.  The "308BB476" (three-digit 308...) date code is the "mark and pack" date code.

The "package assembly" date code may appear on the packing list, box/bag label, and/or shipping traveler, but will never appear on the topside of the device package.   The "mark and pack" date code will always appear on the topside of the device package.

Best regards,

Albert

Infineon Technologies