STM32F301x6 STM32F301x8
Electrical characteristics
6.3.8
Internal clock source characteristics
The parameters given in Table 44 are derived from tests performed under ambient
temperature and supply voltage conditions summarized in Table 23.
High-speed internal (HSI) RC oscillator
Table 44. HSI oscillator characteristics(1)
Symbol
Parameter
Conditions
Min Typ
fHSI
Frequency
-
-
8
TRIM HSI user trimming step
-
-
-
DuCy(HSI) Duty cycle
-
45(2)
-
TA = -40 to
105°C
-2.8(3)
-
TA = -10 to 85°C -1.9(3)
-
ACCHSI
Accuracy of the HSI oscillator TA = 0 to 85°C
-1.9(3)
-
TA = 0 to 70°C -1.3(3)
-
TA = 0 to 55°C
-1(3)
-
TA = 25°C(4)
-1
-
tsu(HSI) HSI oscillator startup time
-
1(2)
-
IDDA(HSI)
HSI oscillator power
consumption
-
-
80
1. VDDA = 3.3 V, TA = –40 to 105 °C unless otherwise specified.
2. Guaranteed by design.
3. Guaranteed by characterization results.
4. Factory calibrated, parts not soldered.
Max
-
1(2)
55(2)
3.8(3)
2.3(3)
2(3)
2(3)
2(3)
1
2(2)
100(2)
Unit
MHz
%
%
%
µs
µA
Figure 18. HSI oscillator accuracy characterization results for soldered parts
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