STM32L471VG datasheet(93/218 Pages) STMICROELECTRONICS

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STM32L471xx

Electrical characteristics

199

6.1.7

Current consumption measurement

Figure 13. 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 functional operation of

the device at these conditions is not implied. Exposure to maximum rating conditions for

extended periods may affect device reliability.

Table 19. Voltage characteristics(1)

Symbol

Ratings

Min

Max

Unit

VDDX - VSS

External main supply voltage (including

VDD, VDDA, VDDIO2, VBAT)

-0.3

4.0

VIN(2)

Input voltage on FT_xxx pins

VSS-0.3

min (VDD, VDDA, VDDIO2)

+ 4.0(3)(4)

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(5)

-50

1. All main power (VDD, VDDA, VDDIO2, VBAT) and ground (VSS, VSSA) pins must always be connected to the external power

supply, in the permitted range.

2. VIN maximum must always be respected. Refer to Table 20: Current characteristics for the maximum allowed injected

current values.

3. This formula has to be applied only on the power supplies related to the IO structure described in the pin definition table.

4. To sustain a voltage higher than 4 V the internal pull-up/pull-down resistors must be disabled.

5. Include VREF- pin.

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