Datasheet
STM32L452xx Electrical characteristics
DocID029968 Rev 3 117/210
I
DD_ALL
(Shutdown
with RTC)
Supply current
in Shutdown
mode
(backup
registers
retained) RTC
enabled
RTC clocked by LSE
bypassed at 32768 Hz
1.8 V 165 275 950 2600 6550 - - - - -
nA
2.4 V 235 370 1150 3100 7650 - - - - -
3 V 325 485 1450 3750 9050 - - - - -
3.6 V 445 655 1900 4800 11500 - - - - -
RTC clocked by LSE
quartz
(2)
in low drive
mode
1.8 V 290 410 1050 2550 6700 - - - - -
2.4 V 375 515 1250 3050 7800 - - - - -
3 V 480 645 1550 3700 8800 - - - - -
3.6 V 625 840 1950 4950 11500 - - - - -
I
DD_ALL
(wakeup from
Shutdown)
Supply current
during wakeup
from Shutdown
mode
Wakeup clock is
MSI = 4 MHz.
See
(3)
.
3 V 1.00 - - - - - - - - - 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 52: Low-power mode wakeup timings.
Table 49. 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
Table 50. Current consumption in VBAT mode
Symbol Parameter
Conditions TYP MAX
(1)
Unit
-V
BAT
25 °C 55 °C 85 °C 105 °C 125 °C 25 °C 55 °C 85 °C 105 °C 125 °C
I
DD_VBAT
(VBAT)
Backup domain
supply current
RTC disabled
1.8 V 3.00 - - - - - - - - -
nA
2.4 V 4.00 - - - - - - - - -
3 V 5.00 - - - - - - - - -
3.6 V 11.0 - - - - - - - - -
RTC enabled and
clocked by LSE
bypassed at 32768 Hz
1.8 V 145 165 285 550 - - - - - -
2.4 V 205 235 370 670 - - - - - -
3 V 285 315 470 820 - - - - - -
3.6 V 375 430 715 1350 - - - - - -
1. Guaranteed by characterization results, unless otherwise specified.
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