STM32F101X6 Datasheet, PDF (36/64 Pages) STMicroelectronics – Access line, advanced ARM-based 32-bit MCU with Flash memory, six 16-bit timers, ADC and seven communication interfaces

Electrical characteristics
STM32F101xx
5.3.7
Internal Clock source characteristics
The parameters given in Table 19 are derived from tests performed under ambient
temperature and V_DD supply voltage conditions summarized in Table 7.
High-speed internal (HSI) RC oscillator
Table 19. HSI oscillator characteristics⁽¹⁾⁽²⁾
Symbol
Parameter
Conditions
f_HSI Frequency
ACC_HSI Accuracy of HSI oscillator
t_su(HSI) HSI oscillator startup time
I_DD(HSI)
HSI oscillator power
consumption
T_A = –40 to 85 °C
at T_A = 25 °C
1. V_DD = 3.3 V, T_A = −40 to 85 °C unless otherwise specified.
2. TBD stands for to be determined.
3. Values based on device characterization, not tested in production.
LSI Low Speed Internal RC Oscillator
Min
TBD
TBD
1
Typ Max⁽³⁾ Unit
8
MHz
±3
TBD
%
±1
TBD
%
2
µs
80
100 µA
Table 20. LSI oscillator characteristics ⁽¹⁾
Symbol
Parameter
Conditions
f_LSI
t_su(LSI)
I_DD(LSI)
Frequency
LSI oscillator start up time
LSI oscillator power
consumption
1. V_DD = 3 V, T_A = −40 to 85 °C unless otherwise specified.
2. Value based on device characterization, not tested in production.
Min
Typ _Max⁽²⁾ Unit
30
60 kHz
85
µs
0.65 1.2
µA
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