STM32F050C6T6A Datasheet, PDF (59/97 Pages) STMicroelectronics – Low- and medium-density advanced ARM-based 32-bit MCU with up to 32 Kbytes Flash, timers, ADC and comm. interfaces

STM32F050xx
Electrical characteristics
Low-speed internal (LSI) RC oscillator
Table 35. LSI oscillator characteristics⁽¹⁾
Symbol
Parameter
Min
f_LSI
Frequency
30
t_su(LSI)(2) LSI oscillator startup time
-
I_DDA(LSI)(2) LSI oscillator power consumption
-
1. V_DDA = 3.3 V, T_A = –40 to 105 °C unless otherwise specified.
2. Guaranteed by design, not tested in production.
Typ
40
-
0.75
Max
Unit
50
kHz
85
µs
1.2
µA
Wakeup time from low-power mode
The wakeup times given in Table 36 is measured on a wakeup phase with a 8-MHz HSI RC
oscillator. The event used to wake up the device depends from the current operating mode:
● Stop or sleep mode: the wakeup event is WFE.
● The wakeup pin used in sleep, stop and standby modes is PA0.
All timings are derived from tests performed under ambient temperature and V_DD supply
voltage conditions summarized in Table 15: General operating conditions.
Table 36. Low-power mode wakeup timings
Symbol
Parameter
Conditions
t_WUSTOP
Wakeup from Stop
mode
Regulator in run
mode
Regulator in low
power mode
t_WUSTANDBY ^{Wakeup from}
Standby mode
t_WUSLEEP
Wakeup from Sleep
mode
Typ @VDD
Max Unit
= 2.0 V = 2.4 V = 2.7 V = 3 V = 3.3 V
4.2
4.2
4.2
4.2
4.2 5
8.05 7.05
60.35 55.6
6.6 6.27 6.05 9
µs
53.5 52.02 50.96
1.1
1.1
1.1
1.1
1.1
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