Datasheet

Package information STM32F401xB STM32F401xC
130/139 DS9716 Rev 11
Device marking for UFBGA100
The following figure gives an example of topside marking orientation versus ball A1 identifier
location. The printed markings may differ depending on the supply chain.
Other optional marking or inset/upset marks, which depend on supply chain operations, are
not indicated below.
Figure 61. UFBGA100 marking example (package top view)
1. Parts marked as ES or E or accompanied by an Engineering Sample notification letter are not yet qualified
and therefore not approved for use in production. ST is not responsible for any consequences resulting
from such use. In no event will ST be liable for the customer using any of these engineering samples in
production. ST’s Quality department must be contacted prior to any decision to use these engineering
samples to run a qualification activity.
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