I have searched the datasheets but none mention how dating is stamped on these ZeroPower SRAMs.
Is the manufacture date 1999 for both of these examples, or is one 2014 and the other (Attachment Link) " alt="" class="bbc_img" />2021?
Its an important distinction for estimating remaining litium battery life
Thank you in advance.
Jerry NY2KW
Last two lines:
99 = assembly site (Muar, Malaysia)
06S = lot code
VH = wafer fab (Carrollton, TX)
MYS = Malaysia
99 = test site (Muar)
YWW or YYWW = date code (single digit is 200Y)
A = die revision
Assuming they're both legit, of course, and not recycled and relabeled.