Datasheet

Electrical characteristics STM32F091xB STM32F091xC
50/128 DocID026284 Rev 4
6.1.6 Power supply scheme
Figure 13. Power supply scheme
Caution: Each power supply pair (V
DD
/V
SS
, V
DDA
/V
SSA
etc.) must be decoupled with filtering ceramic
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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