STM32H747AI datasheet(108/252 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32H747xI/G

98/242

DS12930 Rev 1

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.

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 19: Voltage characteristics,

Table 20: Current characteristics, and Table 21: 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

VBAT

VDD

VDDA

IDD_VBAT

IDD

Table 19. Voltage characteristics (1)

1. All main power (VDD, VDDA, VDD33USB, VDDSMPS, VBAT) and ground (VSS, VSSA) pins must always be

connected to the external power supply, in the permitted range.

Symbols

Ratings

Min

Max

Unit

VDDX - VSS

External main supply voltage (including VDD,

VDDLDO, VDDSMPS, VDDA, VDD33USB, VBAT)

−0.3

4.0

VIN(2)

2. VIN maximum must always be respected. Refer to Table 70: I/O current injection susceptibility for the

maximum allowed injected current values.

Input voltage on FT_xxx pins

VSS−0.3

Min(VDD, VDDA,

VDD33USB, VBAT)

+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.

Input voltage on TT_xx pins

VSS-0.3

4.0

Input voltage on BOOT0 pin

VSS

9.0

Input voltage on any other pins

VSS-0.3

4.0

∆VDDX|

Variations between different VDDX power pins

of the same domain

-50

|VSSx-VSS| Variations between all the different ground pins

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