Electrical characteristics
STM32L151x6/8/B STM32L152x6/8/B
Symbol
Table 23. Typical and maximum current consumptions in Standby mode
Parameter
Conditions
Typ(1)
Max
(1)(2)
Unit
TA = -40 °C to 25 °C
VDD = 1.8 V
0.9
-
RTC clocked by LSI (no
TA = -40 °C to 25 °C
1.1
1.8
independent watchdog) TA = 55 °C
1.42 2.5
IDD Supply current in Standby
(Standby mode with RTC enabled
with RTC)
TA= 85 °C
1.87 3
TA = 105 °C
2.78 5
TA = -40 °C to 25 °C
VDD = 1.8 V
1
-
RTC clocked by LSE (no TA = -40 °C to 25 °C 1.33 2.9
independent watchdog)(3) TA = 55 °C
1.59 3.4
TA= 85 °C
2.01 4.3 µA
TA = 105 °C
3.27 6.3
Independent watchdog
and LSI enabled
TA = -40 °C to 25 °C 1.1 1.6
IDD Supply current in Standby
(Standby) mode with RTC disabled
Independent watchdog
and LSI OFF
IDD (WU RMS supply current during
from wakeup time when exiting
-
Standby) from Standby mode
TA = -40 °C to 25 °C
TA = 55 °C
TA = 85 °C
TA = 105 °C
VDD = 3.0 V
TA = -40 °C to 25 °C
0.3 0.55
0.5 0.8
1
1.7
2.5 4(4)
1
-
1. The typical values are given for VDD = 3.0 V and max values are given for VDD = 3.6 V, unless otherwise specified.
2. Guaranteed by characterization results, unless otherwise specified.
3. Based on characterization done with a 32.768 kHz crystal (MC306-G-06Q-32.768, manufacturer JFVNY) with two 6.8pF
loading capacitors.
4. Tested in production.
On-chip peripheral current consumption
The current consumption of the on-chip peripherals is given in the following table. The MCU
is placed under the following conditions:
• all I/O pins are in input mode with a static value at VDD or VSS (no load)
• all peripherals are disabled unless otherwise mentioned
• the given value is calculated by measuring the current consumption
– with all peripherals clocked off
– with only one peripheral clocked on
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