Datasheet

DocID025936 Rev 8 19/143
STM32L052x6 STM32L052x8 Functional overview
36
Temperature
sensor
OOOOO --
Comparators O O O O O O --
16-bit timers O O O O -- --
LPTIMER O O O O O O
IWDG O O O O O O O O
WWDG O O O O -- --
Touch sensing
controller (TSC)
O O -- -- -- --
SysTick Timer O O O O --
GPIOs O O O O O O 2 pins
Wakeup time to
Run mode
0 µs 0.36 µs 3 µs 32 µs 3.5 µs 50 µs
Consumption
V
DD
=1.8 to 3.6 V
(Typ)
Down to
140 µA/MHz
(from Flash
memory)
Down to
37 µA/MHz
(from Flash
memory)
Down to
8 µA
Down to
4.5 µA
0.4 µA (No
RTC) V
DD
=1.8 V
0.28 µA (No
RTC) V
DD
=1.8 V
0.8 µA (with
RTC) V
DD
=1.8 V
0.65 µA (with
RTC) V
DD
=1.8 V
0.4 µA (No
RTC) V
DD
=3.0 V
0.29 µA (No
RTC) V
DD
=3.0 V
1 µA (with RTC)
V
DD
=3.0 V
0.85 µA (with
RTC) V
DD
=3.0 V
1. Legend:
“Y” = Yes (enable).
“O” = Optional can be enabled/disabled by software)
“-” = Not available
2. Some peripherals with wakeup from Stop capability can request HSI to be enabled. In this case, HSI is woken up by the
peripheral, and only feeds the peripheral which requested it. HSI is automatically put off when the peripheral does not need
it anymore.
3. UART and LPUART reception is functional in Stop mode. It generates a wakeup interrupt on Start. To generate a wakeup
on address match or received frame event, the LPUART can run on LSE clock while the UART has to wake up or keep
running the HSI clock.
4. I2C address detection is functional in Stop mode. It generates a wakeup interrupt in case of address match. It will wake up
the HSI during reception.
Table 5. Functionalities depending on the working mode
(from Run/active down to standby) (continued)
(1)
IPs Run/Active Sleep
Low-
power
run
Low-
power
sleep
Stop Standby
Wakeup
capability
Wakeup
capability
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