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SJCU
Associate
December 15, 2023
Question

Marking ID

  • December 15, 2023
  • 4 replies
  • 1542 views

I am trying to confirm the marking ID on the physical part (4FFT 8311) UFDFPN-8 EP for St. Micro # M24C64-FMC6TG

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4 replies

Tesla DeLorean
Tesla DeLorean
Guru
December 15, 2023

4FFT or 464T seem most prevalent for M24C64-FMC6TG. The number line is a lot/production code.

@Peter BENSCH 

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SJCUAuthor
Associate
December 15, 2023

Thanks for Reply!

Is there an App Note document available memory devices?

Tesla DeLorean
Tesla DeLorean
Guru
December 15, 2023

There are data-sheets, unfortunately a lot of ST's lack marking information.

I2C EEPROM's tend to have a pretty simple / common usage method.

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Peter BENSCH
Peter BENSCH
ST Technical Moderator
December 18, 2023

Correct, the current markings for the M24C64-FMC6TG are 4FFT (newer) or 464T (older, older, should no longer be available).

The last three digits of the 2nd row stand for the date code YWW, i.e. your 8311 is to be interpreted as 2013 or 2023, week 11.

Hope that helps?

Regards
/Peter

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