STM32U375CE datasheet(95/222 Pages) STMICROELECTRONICS

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5.3.6

Supply current characteristics

The current consumption is a function of several parameters and factors such as the operating voltage, ambient

temperature, I/O pin loading, device software configuration, operating frequencies, I/O pin switching rate, program

location in memory and executed binary code.

The current consumption is measured as described in Section 5.1.7: Current consumption measurement.

Typical and maximum current consumption

The MCU is placed under the following conditions:

•

All I/O pins are in analog input mode.

•

All peripherals are disabled except when explicitly mentioned.

•

The flash memory access time is adjusted with the minimum wait-state number, depending on the fHCLK

frequency (refer to the tables Number of wait states according to CPU clock (HCLK) frequency available in

the product reference manual).

•

When the peripherals are enabled, fPCLK = fHCLK.

•

The voltage scaling range is adjusted to fHCLK frequency as follows:

–

Voltage range 1: Up to 96 MHz

–

Voltage range 2: Up to 48 MHz

The parameters given in the tables below are derived from tests performed under ambient temperature and

supply voltage conditions summarized in Table 27. General operating conditions .

Table 31. Current consumption in Run mode on LDO, Coremark code with data processing running from flash memory,

ICACHE ON in 1-way, prefetch ON

The current consumption from SRAM is similar.

Symbol

Parameter

Conditions

Typ

Max at 1.71 V ≤ VDD ≤

3.6 V(1)

Unit

Voltage scaling

fHCLK

(MHz)

25°C

55°C

85°C 105°C 30°C 55°C 85°C 105°C

IDD

(Run)

Supply

current in

Run mode

fHCLK = fMSI, all

peripherals disable,

flash memory bank 2

in powered down, all

SRAMs enabled

Range

4.60

5.00

6.15

7.80

6.0

7.1

Range

2.05

2.40

3.35

4.75

3.0

3.8

6.7

1.15

1.45

2.45

3.85

2.0

2.8

5.7

0.68

1.00

2.00

3.40

1.5

2.3

5.2

9.5

0.45

0.79

1.75

3.15

1.2

2.1

4.9

9.2

0.34

0.68

1.65

3.05

1.1

1.9

4.8

9.1

fHCLK = fHSI, all

peripherals disable,

flash memory bank 2

in powered down, all

SRAMs enabled

Range

0.995

1.35

2.3

3.7

1.8

2.7

5.5

9.8

fHCLK = fHSE bypass

mode, all peripherals

disable, flash memory

bank 2 in powered

down, all SRAMs

enabled

Range

4.85

5.25

6.4

8.1

6.3

7.4

Range

2.2

2.55

3.5

4.9

3.1

4.0

6.8

1.55

1.9

2.85

4.3

2.4

3.3

6.1

1.2

1.55

2.55

3.95

2.0

2.9

5.8

0.755

1.1

2.05

3.45

1.6

2.4

5.2

9.5

0.51

0.845

1.8

3.2

1.3

2.1

5.0

9.3

0.385

0.725

1.7

3.1

1.1

2.0

4.9

9.2

0.305

0.645

1.6

1.1

1.9

4.8

0.4

0.28

0.62

1.6

1.0

1.9

4.8

STM32U375xx

Electrical characteristics

DS14861 - Rev 2

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