Figure 43. Lqfp32 Package Top View - STMicroelectronics STM32F042G4 Manual

Package characteristics
Marking of engineering samples for LQFP32
The following figure shows the engineering sample marking for the LQFP32 package. Only
the information field containing the engineering sample marking is shown.
1. Samples marked "ES" are to be considered as "Engineering Samples": i.e. they are intended to be sent to
customer for electrical compatibility evaluation and may be used to start customer qualification where
specifically authorized by ST in writing. In no event ST will be liable for any customer usage in production.
Only if ST has authorized in writing the customer qualification Engineering Samples can be used for
reliability qualification trials.
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Figure 43. LQFP32 package top view

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STM32F042xx