We purchased 1,200 STM32WB55VGY6TR chips from the STmicroelectronics eStore for production. We encountered several firmware programming issues during the manufacturing process, and while investigating the cause, we noticed that the device marking was printed as WB55VEY. The chips that were successfully programmed appear to be OK. The device marking is printed as WB55VEY6, but the actual flash memory capacity is 1MB and the contents appear to be WB55VGY. Can we assume that the chip in the attached photo is an STM32WB55VGY6TR and use it without any problems? By the way, the lot number is listed as:
WB55VEY6
A5 011 9R
TW 4 48 X
e1
We've contacted the eStore, but haven't received a reply.
"Case# 00247962"
What should we do? Can you help us?
