Datasheet

STM32F103xC, STM32F103xD, STM32F103xE Electrical characteristics
Doc ID 14611 Rev 8 61/130
Wakeup time from low-power mode
The wakeup times given in Ta ble 27 is measured on a wakeup phase with a 8-MHz HSI RC
oscillator. The clock source used to wake up the device depends from the current operating
mode:
● Stop or Standby mode: the clock source is the RC oscillator
● Sleep mode: the clock source is the clock that was set before entering Sleep mode.
All timings are derived from tests performed under ambient temperature and V
DD
supply
voltage conditions summarized in Tabl e 1 0.
t
su(LSI)
(3)
LSI oscillator startup time 85 µs
I
DD(LSI)
(3)
LSI oscillator power consumption 0.65 1.2 µA
1. V
DD
= 3 V, T
A
= –40 to 105 °C unless otherwise specified.
2. Based on characterization, not tested in production.
3. Guaranteed by design, not tested in production.
Table 27. Low-power mode wakeup timings
Symbol Parameter Typ Unit
t
WUSLEEP
(1)
1. The wakeup times are measured from the wakeup event to the point in which the user application code
reads the first instruction.
Wakeup from Sleep mode 1.8 µs
t
WUSTOP
(1)
Wakeup from Stop mode (regulator in run mode) 3.6
µs
Wakeup from Stop mode (regulator in low power mode) 5.4
t
WUSTDBY
(1)
Wakeup from Standby mode 50 µs
Table 26. LSI oscillator characteristics
(1)
Symbol Parameter Min Typ Max Unit