Datasheet
Electrical characteristics STM32L431xx
96/200 DocID028800 Rev 1
Table 34. Current consumption in Stop 1 mode
Symbol Parameter
Conditions TYP MAX
(1)
Unit
-V
DD
25 °C 55 °C 85 °C 105 °C 125 °C 25 °C 55 °C 85 °C 105 °C 125 °C
I
DD
(Stop 1)
Supply
current in
Stop 1 mode,
RTC disabled
-
1.8 V 4.34 12.4 43.6 96.4 204 9.3 27.4 98.9 198.7 397.5
µA
2.4 V 4.35 12.5 43.8 97 205 9.4 27.6 99.5 199.0 398.0
3 V 4.41 12.6 44.1 97.7 207 9.5 27.8 100.3 200.4 400.8
3.6 V 4.56 12.9 44.8 98.9 210 9.7 28.3 101.7 202.1 404.2
I
DD
(Stop 1
with RTC)
Supply
current in stop
1 mode,
RTC enabled
RTC clocked by LSI
1.8 V 4.63 12.7 43.9 96.8 205 9.9 28.0 99.5 198.9 397.8
µA
2.4 V 4.78 12.8 44.2 97.4 206 10.1 28.3 100.3 199.5 399.0
3 V 4.93 13 44.6 98.1 207 10.4 28.7 101.2 200.9 401.9
3.6 V 5.05 13.4 45.3 99.5 210 10.8 29.4 102.8 202.5 405.0
RTC clocked by LSE
bypassed, at 32768 Hz
1.8 V 4.7 12.8 44 96.9 205 - - - - -
2.4 V 4.95 13 44.4 97.6 206 - - - - -
3 V 5.33 13.6 45.4 99.1 209 - - - - -
3.6 V 6.91 16.1 48.8 103 216 - - - - -
RTC clocked by LSE quartz
(2)
in low drive mode
1.8 V 4.76 12.3 43.7 99.1 - - - - - -
2.4 V 4.95 12.4 43.8 99.3 - - - - - -
3 V 5.1 12.6 44.1 99.6 - - - - - -
3.6 V 5.65 13 44.8 101 - - - - - -
I
DD
(wakeup
from Stop1)
Supply
current during
wakeup from
Stop 1
Wakeup clock MSI = 48 MHz,
voltage Range 1.
See
(3)
.
3 V1.14---------
mA
Wakeup clock MSI = 4 MHz,
voltage Range 2.
See
(3)
.
3 V1.22---------
Wakeup clock HSI16 =
16 MHz, voltage Range 1.
See
(3)
.
3 V1.20---------
1. Guaranteed based on test during characterization, unless otherwise specified.
2. Based on characterization done with a 32.768 kHz crystal (MC306-G-06Q-32.768, manufacturer JFVNY) with two 6.8 pF loading capacitors.
3. Wakeup with code execution from Flash. Average value given for a typical wakeup time as specified in Table 40: Low-power mode wakeup timings.
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