Datasheet
Electrical characteristics STM32L431xx
100/200 DocID028800 Rev 1
I
DD
(Shutdown
with RTC)
Supply current
in Shutdown
mode
(backup
registers
retained) RTC
enabled
RTC clocked by LSE
bypassed at 32768 Hz
1.8 V 63 133 522 1 490 4 270 - - - - -
nA
2.4 V 165 253 710 1 830 4 980 - - - - -
3 V 316 423 990 2 340 6 050 - - - - -
3.6 V 649 787 1 530 3 220 7 710 - - - - -
RTC clocked by LSE
quartz
(2)
in low drive
mode
1.8 V 203 293 700 1 675 - - - - - -
2.4 V 303 411 880 2 001 - - - - - -
3 V 448 567 1 136 2 479 - - - - - -
3.6 V 744 887 1 609 3 256 - - - - - -
I
DD
(wakeup
from
Shutdown)
Supply current
during wakeup
from Shutdown
mode
Wakeup clock is
MSI = 4 MHz.
See
(3)
.
3 V 0.780 - - - - - - - - - mA
1. Guaranteed by characterization results, 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.
Table 37. Current consumption in Shutdown mode (continued)
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
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