Customer found MPC5125 flash programming failures in production.
So far the failures happened to a certain batch parts only.
Can you help explain the package mark meaning on MPC5125 surface?
Want to check the difference between the normal parts and failures parts.
On failed parts surface, it marks: MPC5125YVN400, 1M01S, QAP1519Z
On normal parts surface, it marks: MPC5125YVN400, 1M01S, QAL1501V
Besides different data code (1519 vs 1501), what the other charactors stand for? (QAP vs QAL, Z vs V)
Please help advise, thanks,