MCU marking code

[liven_deng]

Hi

   Could you help me to know the meaning of the marking code, thanks.

[iSYSRTS]

Hi @diego_charles ,

i'd like to ask some further question about the Marking code on the MCU's.

At the end of the Produktion Week and Year there is an additional Letter - in the Picture above ist "L".

What does this letter mean?

Thank you in Advance

[diego_charles]

Hello, liven Deng 

Regarding your question

 [            ] part identification   ... 

  [         ]...

  [         ] mask

[ 1927    ]  by pairs, year and week. In example 2019 week 27

Have a great day,
Diego

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