Electrical characteristics
STM32F301x6 STM32F301x8
6.3.8
Internal clock source characteristics
The parameters given in Table 43 are derived from tests performed under ambient
temperature and supply voltage conditions summarized in Table 23.
High-speed internal (HSI) RC oscillator
Table 43. 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, not tested in production.
3. Data based on characterization results, not tested in production.
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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