Datasheet

STM32L452xx Functional overview
DocID029968 Rev 3 23/210
Table 4. STM32L452xx modes overview
Mode Regulator
(1)
CPU Flash SRAM Clocks DMA & Peripherals
(2)
Wakeup source Consumption
(3)
Wakeup time
Run
MR range 1
Yes ON
(6)
ON Any
All
N/A
94 µA/MHz
N/A
SMPS range 2 High 34 µA/MHz
(4)
MR range2
All except USB_FS, RNG
85 µA/MHz
SMPS range 2 Low 37 µA/MHz
(5)
LPRun LPR Yes ON
(6)
ON
Any
except
PLL
All except USB_FS, RNG N/A 95 µA/MHz
to Range 1: 4 µs
to Range 2: 64 µs
Sleep
MR range 1
No ON
(6)
ON
(7)
Any
All
Any interrupt or
event
27 µA/MHz
6 cycles
SMPS range 2 High 10 µA/MHz
(4)
MR range2
All except USB_FS, RNG
27 µA/MHz
SMPS range 2 Low 11 µA/MHz
(5)
LPSleep LPR No ON
(6)
ON
(7)
Any
except
PLL
All except USB_FS, RNG
Any interrupt or
event
38 µA/MHz 6 cycles
Stop 0
MR Range 1
(8)
No OFF ON
LSE
LSI
BOR, PVD, PVM
RTC, IWDG
COMPx (x=1,2)
DAC1
OPAMPx (x=1)
USARTx (x=1...3)
(9)
UART4
(9)
LPUART1
(9)
I2Cx (x=1...4)
(10)
LPTIMx (x=1,2)
***
All other peripherals are
frozen.
Reset pin, all I/Os
BOR, PVD, PVM
RTC, IWDG
COMPx (x=1..2)
USARTx (x=1...3)
(9)
UART4
(9)
LPUART1
(9)
I2Cx (x=1...4)
(10)
LPTIMx (x=1,2)
USB_FS
(11)
125 µA
2.47 µs in SRAM
4.1 µs in Flash
MR Range 2
(8)
125 µA
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