STM32U073R8 datasheet(43/146 Pages) STMICROELECTRONICS

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6.1.7

Current consumption measurement

Figure 14. Current consumption measurement scheme

IDD_USB

VDDUSB

IDD_VBAT

VBAT

IDD

VDD

IDDA

VDDA

The IDD_ALL parameters given in Table 26. Current consumption in Run and Low-power run modes, code with

data processing running from flash memory, bypass mode, ART enabled (cache ON, prefetch OFF), HSE clock

used as system clock to Table 43. Current consumption in VBAT mode represent the total MCU consumption

including the current supplying VDD, VDDA, VDDUSB, and VBAT.

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. Device mission profile (application conditions)

is compliant with JEDEC JESD47 qualification standard, extended mission profiles are available on demand.

Table 19. Voltage characteristics

All main power (VDD, VDDA, VDDUSB, VBAT) and ground (VSS, VSSA) pins must always be connected to the external power supply, in the

permitted range.

Symbol

Ratings

Min

Max

Unit

VDDX - VSS

External main supply voltage (including VDD, VDDA, VDDUSB, VBAT, VREF+)

-0.3

4.0

VIN(1)

Input voltage on FT_xxx pins

VSS - 0.3

min (VDD, VDDA, VDDUSB) + 4.0(2)

(3)

Input voltage on TT_xx pins

VSS - 0.3

4.0

Input voltage on any other pins

VSS - 0.3

4.0

|ΔVDDX|

Variations between different VDDX power pins of the same domain

|VSSx-VSS|

Variations between all the different ground pins(4)

VREF+ - VDDA Allowed voltage difference for VREF+ > VDDA

0.4

1. VIN maximum must always be respected. Refer to Table 20. Current characteristics for the maximum allowed injected current values.

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

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

4. Including VREF- pin.

STM32U073x8/B/C

Electrical characteristics

DS14548 - Rev 2

page 43/146

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