STM32L431XX Datasheet, PDF (98/200 Pages) STMicroelectronics – RTC with HW calendar, alarms and calibration

Symbol
Parameter
Supply current
in Standby
I_DD(Standby)
mode (backup
registers
retained),
RTC disabled
I_DD(Standby
with RTC)
Supply current
in Standby
mode (backup
registers
retained),
RTC enabled
Table 36. Current consumption in Standby mode
Conditions
TYP
-
no independent watchdog
with independent
watchdog
RTC clocked by LSI, no
independent watchdog
V_DD
1.8 V
2.4 V
3V
3.6 V
1.8 V
2.4 V
3V
3.6 V
1.8 V
2.4 V
3V
25 °C
27.7
50.9
90.2
253
216
342
416
551
287
386
513
55 °C
144
187
253
459
-
-
-
-
407
526
679
85 °C
758
892
1 090
1 474
-
-
-
-
989
1 201
1 478
105 °C 125 °C
2 072
2 408
2 884
3 575
-
-
-
-
2 230
2 638
3 167
5 425
6 247
7 409
8 836
-
-
-
-
5 396
6 274
7 414
25 °C
119
183
225
292
-
-
-
-
585
811
1022
3.6 V 771 978 1 963 3 992 9 039 1284
1.8 V 342 -
-
-
-
-
RTC clocked by LSI, with ^{2.4 V 521}
-
-
-
-
-
independent watchdog
3 V 655 -
-
-
-
-
3.6 V 865 -
-
-
-
-
1.8 V 142 126 865 2 220 5 650 -
RTC clocked by LSE
bypassed at 32768Hz
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 -
1.8 V 281 423 1 046 2 410 5 700 -
RTC clocked by LSE
2.4 V 388 548 1 268 2 847 6 564 -
quartz ⁽³⁾ in low drive mode _{3 V 535 715 1 565 3 420 7 694}
-
3.6 V 836 1 048 2 081 4 311 9 338 -
MAX⁽¹⁾
Unit
55 °C 85 °C 105 °C 125 °C
425
564
681
877
-
-
-
-
944
1230
1521
1924
-
-
-
-
-
-
-
-
-
-
-
-
2866 7524 20510
3383 8778 23768
3912 10071 26976
4638 11659 30758
nA
-
-
-
-
-
-
-
-
-
-
-
-
3344 7866 20504
4007 9246 23824
4683 10671 27124
5577
12383
30954
(2)
nA
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
nA
-
-
-
-
-
-
-
-
-
-
-
-