UM2516 Rev 4 23/29
UM2516 B-G431B-ESC1 Discovery kit information
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7 B-G431B-ESC1 Discovery kit information
7.1 Product marking
The stickers located on the top or bottom side of the PCB provide product information:
• Product order code and product identification for the first sticker
• Board reference with revision, and serial number for the second sticker
On the first sticker, the first line provides the product order code, and the second line the
product identification.
On the second sticker, the first line has the following format: “MBxxxx-Variant-yzz”, where
“MBxxxx” is the board reference, “Variant” (optional) identifies the mounting variant when
several exist, "y" is the PCB revision and "zz" is the assembly revision, for example B01.
The second line shows the board serial number used for traceability.
Evaluation tools marked as “ES” or “E” are not yet qualified and therefore not ready to be
used as reference design or in production. Any consequences deriving from such usage will
not be at ST charge. In no event, ST will be liable for any customer usage of these
engineering sample tools as reference designs or in production.
“E” or “ES” marking examples of location:
• On the targeted STM32 that is soldered on the board (For an illustration of STM32
marking, refer to the STM32 datasheet “Package information” paragraph at the
www.st.com website).
• Next to the evaluation tool ordering part number that is stuck or silk-screen printed on
the board.
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