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USB Low-Full-High Speed Peripherals

Anonymous
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        I have 2 CY7C68013A-100AXC's. Both are Rev B with fab code of 04. The one with datecode 0537 has Lot# 645546. The other one with datecode 0931 has Lot# 627127. If both are from the same fab built almost 4 years apart, can the older IC have a larger Lot # than the nearly new IC? Can Lot #'s repeat?   
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Anonymous
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        So after several emails between me and the Cypress support group, they finally said that the lot numbers printed on the IC are a computer generated code and may not run in sequential order.   
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