Datasheet
Electrical characteristics STM32L431xx
98/200 DocID028800 Rev 1
Table 36. Current consumption in Standby 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
(Standby)
Supply current
in Standby
mode (backup
registers
retained),
RTC disabled
no independent watchdog
1.8 V 27.7 144 758 2 072 5 425 119 425 2866 7524 20510
nA
2.4 V 50.9 187 892 2 408 6 247 183 564 3383 8778 23768
3 V 90.2 253 1 090 2 884 7 409 225 681 3912 10071 26976
3.6 V 253 459 1 474 3 575 8 836 292 877 4638 11659 30758
with independent
watchdog
1.8 V 216 - - - - - - - - -
2.4 V 342 - - - - - - - - -
3 V 416 - - - - - - - - -
3.6 V 551 - - - - - - - - -
I
DD
(Standby
with RTC)
Supply current
in Standby
mode (backup
registers
retained),
RTC enabled
RTC clocked by LSI, no
independent watchdog
1.8 V 287 407 989 2 230 5 396 585 944 3344 7866 20504
nA
2.4 V 386 526 1 201 2 638 6 274 811 1230 4007 9246 23824
3 V 513 679 1 478 3 167 7 414 1022 1521 4683 10671 27124
3.6 V 771 978 1 963 3 992 9 039 1284 1924 5577 12383
30954
(2)
RTC clocked by LSI, with
independent watchdog
1.8 V 342 - - - - - - - - -
2.4 V 521 - - - - - - - - -
3 V 655 - - - - - - - - -
3.6 V 865 - - - - - - - - -
RTC clocked by LSE
bypassed at 32768Hz
1.8 V 142 126 865 2 220 5 650 - - - - -
nA
2.4 V 249 219 1 090 2 660 6 600 - - - - -
3 V 404 364 1 410 3 260 7 850 - - - - -
3.6 V 742 670 2 000 4 230 9 700 - - - - -
RTC clocked by LSE
quartz
(3)
in low drive mode
1.8 V 281 423 1 046 2 410 5 700 - - - - -
2.4 V 388 548 1 268 2 847 6 564 - - - - -
3 V 535 715 1 565 3 420 7 694 - - - - -
3.6 V 836 1 048 2 081 4 311 9 338 - - - - -
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