Datasheet

DocID029162 Rev 6 79/208
STM32F413xG/H Electrical characteristics
174
6.1.6 Power supply scheme
Figure 21. Power supply scheme
1. To connect PDR_ON pin, refer to Section: 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 100-pin and 144-pin packages.
4. V
DDA
=V
DD
and V
SSA
=V
SS
.
5. V
DDUSB
is a dedicated independent USB power supply for the on-chip full-speed OTG PHY module and
associated DP/DM GPIOs. V
DDUSB
value does not depend on the V
DD
and V
DDA
values, but it must be the
last supply to be provided and the first to disappear.
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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