Datasheet

Package information STM32L052x6 STM32L052x8
130/143 DocID025936 Rev 8
Device marking for LQFP32
The following figure gives an example of topside marking versus pin 1 position identifier
location.
Other optional marking or inset/upset marks, which depend on supply chain operations, are
not indicated below.
Figure 54. LQFP32 marking example (package top view)
2. Parts marked as “ES”, “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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