Datasheet

Electrical characteristics STM32H743xI
96/226 DocID030538 Rev 3
6.1.7 Current consumption measurement
Figure 14. Current consumption measurement scheme
6.2 Absolute maximum ratings
Stresses above the absolute maximum ratings listed in Table 20: Voltage characteristics,
Table 21: Current characteristics, and Table 22: Thermal characteristics may cause
permanent damage to the device. These are stress
ratings only and the functional operation
of the device at these conditions is not implied. Exposure to maximum rating conditions for
extended periods may affect device reliability.
ai14126
V
BAT
V
DD
V
DDA
I
DD
_V
BAT
I
DD
Table 20. Voltage characteristics
(1)
1. All main power (V
DD
, V
DDA
, V
DD33USB
, V
BAT
) and ground (V
SS
, V
SSA
) pins must always be connected to
the external power supply, in the permitted range.
Symbols Ratings Min Max Unit
V
DDX
- V
SS
External main supply voltage (including V
DD
,
V
DDLDO
, V
DDA
, V
DD33USB
, V
BAT
)
0.3 4.0 V
V
IN
(2)
2. V
IN
maximum must always be respected. Refer to Table 57 for the maximum allowed injected current
values.
Input voltage on FT_xxx pins V
SS
0.3
Min(V
DD
, V
DDA
,
V
DD33USB
, V
BAT
)
+4.0
(3)(4)
3. This formula has to be applied on power supplies related to the IO structure described by the pin definition
table.
4. To sustain a voltage higher than 4V the internal pull-up/pull-down resistors must be disabled.
V
Input voltage on TT_xx pins V
SS
-0.3 4.0 V
Input voltage on BOOT0 pin V
SS
9.0 V
Input voltage on any other pins V
SS
-0.3 4.0 V
|V
DDX
|
Variations between different V
DDX
power pins
of the same domain
-50mV
|V
SSx
-V
SS
| Variations between all the different ground pins - 50 mV
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