Electrical characteristics
STM32F103x8, STM32F103xB
Low-speed internal (LSI) RC oscillator
Table 25.
Symbol
f
LSI(2)
t
su(LSI)(3)
I
DD(LSI)(3)
Frequency
LSI oscillator startup time
LSI oscillator power consumption
0.65
LSI oscillator characteristics
(1)
Parameter
Min
30
Typ
40
Max
60
85
1.2
Unit
kHz
µs
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.
Wakeup time from low-power mode
The wakeup times given in
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
56/105
Doc ID 13587 Rev 15
STMICROELECTRONICS [ STMICROELECTRONICS ]
