STMicroelectronics Discovery kit for STM32L151/152 line - with STM32L152RC MCU STM32L152C-DISCO STM32L152C-DISCO Hoja De Datos
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STM32L152C-DISCO
Electrical characteristics
STM32L15xCC STM32L15xRC STM32L15xUC STM32L15xVC
DocID022799 Rev 6
6.3.5
Wakeup time from low-power mode
The wakeup times given in the following table are measured with the MSI RC oscillator. The
clock source used to wake up the device depends on the current operating mode:
clock source used to wake up the device depends on the current operating mode:
Sleep mode: the clock source is the clock that was set before entering Sleep mode
Stop mode: the clock source is the MSI oscillator in the range configured before
entering Stop mode
entering Stop mode
Standby mode: the clock source is the MSI oscillator running at 2.1 MHz
All timings are derived from tests performed under ambient temperature and V
DD
supply
voltage conditions summarized in
3. In low power sleep and run mode, the Flash memory must always be in power-down mode.
4. Data based on a differential I
DD
measurement between ADC in reset configuration and continuous ADC
conversion (HSI consumption not included).
5. Data based on a differential I
DD
measurement between DAC in reset configuration and continuous DAC
conversion of V
DD
/2. DAC is in buffered mode, output is left floating.
6. Including supply current of internal reference voltage.
Table 26. Low power mode wakeup timings
Symbol
Parameter
Conditions
Typ
Max
(1)
1. Based on characterization, not tested in production, unless otherwise specified
Unit
t
WUSLEEP
Wakeup from Sleep mode
f
HCLK
= 32 MHz
0.4
-
µs
t
WUSLEEP_LP
Wakeup from Low power sleep
mode, f
mode, f
HCLK
= 262 kHz
f
HCLK
= 262 kHz
Flash enabled
46
-
f
HCLK
= 262 kHz
Flash switched OFF
46
-
t
WUSTOP
Wakeup from Stop mode,
regulator in Run mode
regulator in Run mode
f
HCLK
= f
MSI
= 4.2 MHz
8.2
-
Wakeup from Stop mode,
regulator in low power mode
regulator in low power mode
f
HCLK
= f
MSI
= 4.2 MHz
Voltage range 1 and 2
7.7
8.9
f
HCLK
= f
MSI
= 4.2 MHz
Voltage range 3
8.2
13.1
f
HCLK
= f
MSI
= 2.1 MHz
10.2
13.4
f
HCLK
= f
MSI
= 1.05 MHz
16
20
f
HCLK
= f
MSI
= 524 kHz
31
37
f
HCLK
= f
MSI
= 262 kHz
57
66
f
HCLK
= f
MSI
= 131 kHz
112
123
f
HCLK
= MSI = 65 kHz
221
236
t
WUSTDBY
Wakeup from Standby mode
FWU bit = 1
f
HCLK
= MSI = 2.1 MHz
58
104
Wakeup from Standby mode
FWU bit = 0
f
HCLK
= MSI = 2.1 MHz
2.6
3.25
ms