Power Supply Scheme; Figure 12. Power Supply Scheme - STMicroelectronics STM32F031F4 Manual

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Electrical characteristics
6.1.6

Power supply scheme

Caution: Each power supply pair (V
capacitors as shown above. These capacitors must be placed as close as possible to, or
below, the appropriate pins on the underside of the PCB to ensure the good functionality of
the device.
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Figure 12. Power supply scheme

/V , V /V etc.) must be decoupled with filtering ceramic
DD SS DDA SSA
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