Datasheet

DocID026289 Rev 6 59/149
STM32F411xC STM32F411xE Electrical characteristics
123
6.1.6 Power supply scheme
Figure 17. Power supply scheme
1. To connect PDR_ON pin, refer to Section 3.15: Power supply supervisor.
2. The 4.7 µF ceramic capacitor must be connected to one of the V
DD
pin.
3. VCAP_2 pad is only available on LQFP100 and UFBGA100 packages.
4. V
DDA
=V
DD
and V
SSA
=V
SS
.
Caution: Each power supply pair (for example V
DD
/V
SS
, V
DDA
/V
SSA
) 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 good operation of
the device. It is not recommended to remove filtering capacitors to reduce PCB size or cost.
This might cause incorrect operation of the device.
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