STM32F405RGT6 Device Marking

[Easl1982]

Hi, I have the part STM32F405RGT6 with date code:2318 (does not have the ARM marking) and date code: 2440 (with the ARM marking) on the package body. Both coo: China

May i know if anyone can advice or any PCN that support on this body marking changes, when was this ARM marking took place.

Thank you 

[Roger SHIVELY]

Hello @Easl1982 

This post has been escalated to the ST Online Support Team for additional assistance.  We'll contact you directly.

Regards,

Roger

[Tesla DeLorean]

Honestly this marking is consistent with CHN-GQ/GH since 2016, might be helpful to illustrate both markings.

The molding and marking is generally a function of the particular plant, line and equipment

[Easl1982]

Hi Tesla. 

Please find both markings

 any PCN that support on this body marking changes from DC:2318 to 2440, when was this ARM marking took place.

Thank you

[Tesla DeLorean · Accepted solution]

Different die here. The 2440 is more consistent with product I've seen. France/Crolles has been the primary diffusion site, Taiwan was brought up as a secondary source during supply chain disruption.

- “VQ” for ST Crolles CR300 (France)
- “9R” for TSMC Fab14 (Taiwan)

Perhaps related

https://www.mouser.com/PCN/STMicroelectronics_MDG_21_12792.pdf