Is this MCU a fake of STM32F427VIT6?

DonFrana · ‎2024-09-10

Hi,

can oneone help me to proof if the following MCU ist an original?

1)The print is easier to wipe off.
2)The revision number is missing or is not in the place described in the datasheet.

SofLit · ‎2024-09-10

Hello,

It's new marking for LQFP100 package and it's the revision 4.

You can check by reading the revision from DBGMCU_IDCODE register.

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SofLit · ‎2024-09-10

Hello,

It's new marking for LQFP100 package and it's the revision 4.

You can check by reading the revision from DBGMCU_IDCODE register.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

DonFrana · ‎2024-09-10

Thank you, this helped a lot!

And the register shows the correct value of 0x2003

DonFrana · ‎2024-09-10

The entire unique ID is:

@adresse 0xE0042000:
20036419 00000000 00001000

Is this the proof that this MCU is genuine?

SofLit · ‎2024-09-10

It's a genuine MCU and you read 0x2003 from the correct field. Why are you still not convinced?

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

DonFrana · ‎2024-09-10

Thanks.

It was not clear enough first.

Because:

1) the programmer shows 5/B in the blue area in the lower right corner (I guess because 0x2003 stands for 4,5 or B)

2) The print is easy to wipe off (I have fotos if you want to see).

Thanks for your patience! -:)