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STM32L431xx Electrical characteristics

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Table 26. Current consumption in Run and Low-power run modes, code with data processing

running from Flash, ART disable

Symbol Parameter

Conditions TYP MAX

(1)

Unit

Voltage

scaling

HCLK

25 °C 55 °C 85 °C 105 °C 125 °C 25 °C 55 °C 85 °C 105 °C 125 °C

(Run)

Supply

current in

Run mode

HCLK

= f

HSE

up to

48MHz included,

bypass mode

PLL ON above

48 MHz all

peripherals disable

Range 2

26 MHz 2.66 2.68 2.73 2.81 2.96 3.0 3.1 3.2 3.3 3.6

16 MHz 1.88 1.9 1.94 2.02 2.17 2.1 2.2 2.3 2.4 2.7

8 MHz 1.05 1.06 1.11 1.18 1.33 1.2 1.2 1.3 1.4 1.7

4 MHz 0.6 0.62 0.66 0.73 0.87 0.7 0.7 0.8 0.9 1.2

2 MHz 0.36 0.37 0.34 0.48 0.62 0.4 0.4 0.5 0.6 0.9

1 MHz 0.23 0.25 0.25 0.36 0.5 0.3 0.3 0.4 0.5 0.8

100 kHz 0.12 0.14 0.17 0.25 0.39 0.1 0.2 0.2 0.4 0.7

Range 1

80 MHz 8.56 8.61 8.69 8.79 8.97 9.6 9.7 9.8 10.0 10.3

72 MHz 7.74 7.79 7.86 7.96 8.14 8.7 8.7 8.8 9.0 9.4

64 MHz 7.63 7.68 7.75 7.85 8.04 8.6 8.6 8.7 8.9 9.3

48 MHz 6.36 6.4 6.48 6.58 6.76 7.2 7.3 7.4 7.6 7.9

32 MHz 4.56 4.6 4.66 4.76 4.93 5.2 5.2 5.3 5.5 5.8

24 MHz 3.45 3.48 3.54 3.64 3.8 3.9 4.0 4.1 4.2 4.6

16 MHz 2.48 2.51 2.56 2.65 2.82 2.8 2.9 3.0 3.1 3.5

(LPRun)

Supply

current in

Low-power

run

HCLK

= f

MSI

all peripherals disable

2 MHz 310 317 364 440 593 375.3 400.9 456.7 595.3 909.6

µA

1 MHz 157 173 226 296 448 204.8 234.2 298.2 445.8 758.9

400 kHz 72.6 89 130 206 356 99.7 131.2 199.7 349.3 663.7

100 kHz 32.3 46 89.7 164 314 52.4 82.1 153.3 301.2 616.9

1. Guaranteed by characterization results, unless otherwise specified.

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