Datasheet

DocID028087 Rev 4 141/193
STM32F412xE/G Electrical characteristics
161
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 48 or Figure 49,
depending on whether V
REF+
is connected to V
DDA
or not. The 10 nF capacitors should be
ceramic (good quality). They should be placed them as close as possible to the chip.
Figure 48. Power supply and reference decoupling (V
REF+
not connected to V
DDA
)
1. V
REF+
and V
REF-
inputs are both available on UFBGA100. V
REF+
is also available on LQFP100. When
V
REF+
and V
REF-
are not available, they are internally connected to V
DDA
and V
SSA
.
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