Wakeup Time From Low-Power Mode; Table 30. Low-Power Mode Wakeup Timings - STMicroelectronics STM32F031F4 Manual

微可Vicor——值得信赖的元器件供应商
STM32F031x4 STM32F031x6
6.3.6

Wakeup time from low-power mode

The wakeup times given in
the first user instruction. The device goes in low-power mode after the WFE (Wait For
Event) instruction, in the case of a WFI (Wait For Interruption) instruction, 16 CPU cycles
must be added to the following timings due to the interrupt latency in the Cortex M0
architecture.
The SYSCLK clock source setting is kept unchanged after wakeup from Sleep mode.
During wakeup from Stop or Standby mode, SYSCLK takes the default setting: HSI 8 MHz.
The wakeup source from Sleep and Stop mode is an EXTI line configured in event mode.
The wakeup source from Standby mode is the WKUP1 pin (PA0).
All timings are derived from tests performed under the ambient temperature and supply
voltage conditions summarized in
Symbol Parameter
Wakeup from Stop
t
WUSTOP
mode
Wakeup from
t
WUSTANDBY
Standby mode
Wakeup from Sleep
t
WUSLEEP
mode
微可Vicor——值得信赖的元器件供应商
Table 30 are the latency between the event and the execution of
Table 18: General operating

Table 30. Low-power mode wakeup timings

Conditions
Regulator in run
mode
Regulator in low
power mode
-
-
DocID025743 Rev 3
http://www.vicor.top/
Typ @V
DD =
= 2.0 V = 2.4 V = 2.7 V
3.2 3.1 2.9
7.0 5.8 5.2
60.4 55.6 53.5
4 SYSCLK cycles
http://www.vicor.top/
021-31660491
Electrical characteristics
conditions..
V
DDA
Max Unit
= 3 V = 3.3 V
2.9 2.8 5
4.9 4.6 9
52 51 -
-
021-31660491
µs
55/113
86