Datasheet

DS12556 Rev 2 155/201
STM32H750VB STM32H750IB STM32H750XB Electrical characteristics
189
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 36 or Figure 37,
depending on whether V
REF+
is connected to V
DDA
or not. The 100 nF capacitors should be
ceramic (good quality). They should be placed them as close as possible to the chip.
Figure 36. Power supply and reference decoupling (V
REF+
not connected to V
DDA
)
1. V
REF+
input is available on all package whereas the V
REF–
s available only on UFBGA176+25 and
TFBGA240+25. When V
REF-
is not available, it is internally connected to V
DDA
and V
SSA
.
Figure 37. Power supply and reference decoupling (V
REF+
connected to V
DDA
)
1. V
REF+
input is available on all package whereas the V
REF–
s available only on UFBGA176+25 and
TFBGA240+25. When V
REF-
is not available, it is internally connected to V
DDA
and V
SSA
.
MSv50648V1
1 μF // 100 nF
1 μF // 100 nF
STM32
V
REF+
(1)
V
SSA
/V
REF+
(1)
V
DDA
MSv50649V1
1 μF // 100 nF
STM32
V
REF+
/V
DDA
(1)
V
REF-
/V
SSA
(1)
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