Datasheet

Electrical characteristics STM32L431xx
88/200 DocID028800 Rev 1
Table 25. Current consumption in Run and Low-power run modes, code with data processing
running from Flash, ART enable (Cache ON Prefetch OFF)
Symbol Parameter
Conditions TYP MAX
(1)
Unit
-
Voltage
scaling
f
HCLK
25 °C 55 °C 85 °C 105 °C 125 °C 25 °C 55 °C 85 °C 105 °C 125 °C
I
DD
(Run)
Supply
current in
Run mode
f
HCLK
= f
HSE
up to
48MHz included,
bypass mode
PLL ON above
48 MHz all
peripherals disable
Range 2
26 MHz 2.37 2.38 2.44 2.52 2.66 2.7 2.7 2.8 2.9 3.2
mA
16 MHz 1.5 1.52 1.57 1.64 1.79 1.7 1.7 1.8 2.0 2.3
8 MHz 0.81 0.82 0.87 0.94 1.08 0.9 0.9 1.0 1.2 1.5
4 MHz 0.46 0.47 0.52 0.59 0.73 0.5 0.6 0.6 0.8 1.1
2 MHz 0.29 0.3 0.34 0.41 0.55 0.3 0.4 0.4 0.6 0.9
1 MHz 0.2 0.21 0.25 0.32 0.46 0.2 0.3 0.3 0.5 0.8
100 kHz 0.12 0.13 0.17 0.24 0.38 0.1 0.2 0.2 0.4 0.7
Range 1
80 MHz 8.53 8.56 8.64 8.74 8.92 9.5 9.6 9.7 9.9 10.3
72 MHz 7.7 7.73 7.8 7.9 8.08 8.6 8.6 8.7 8.9 9.3
64 MHz 6.86 6.9 6.97 7.06 7.23 7.7 7.7 7.8 8.0 8.3
48 MHz 5.13 5.16 5.23 5.32 5.49 5.8 5.8 6.0 6.1 6.5
32 MHz 3.46 3.48 3.55 3.64 3.8 3.9 4.0 4.1 4.2 4.6
24 MHz 2.63 2.64 2.71 2.79 2.96 3.0 3.0 3.1 3.3 3.6
16 MHz 1.8 1.81 1.87 1.96 2.12 2.0 2.1 2.2 2.3 2.7
I
DD
(LPRun)
Supply
current in
Low-power
run mode
f
HCLK
= f
MSI
all peripherals disable
2 MHz 211 230 280 355 506 273.8 301.1 360.4 502.7 815.9
µA
1 MHz 117 134 179 254 404 154.7 184.6 249.6 398.4 712.4
400 kHz 58.5 70.4 116 189 338 80.2 111.5 179.7 330.8 643.4
100 kHz 30 41.1 85.2 159 308 46.5 76.6 147.1 299.1 611.2
1. Guaranteed by characterization results, unless otherwise specified.
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