Datasheet

Electrical characteristics STM32F302x6 STM32F302x8
80/138 DocID025147 Rev 7
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
Figure 18. HSI oscillator accuracy characterization results for soldered parts
Table 43. HSI oscillator characteristics
(1)
1. V
DDA
= 3.3 V, T
A
= –40 to 105 °C unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
f
HSI
Frequency - - 8 - MHz
TRIM HSI user trimming step - - - 1
(2)
2. Guaranteed by design.
%
DuCy
(HSI)
Duty cycle - 45
(2)
-55
(2)
%
ACC
HSI
Accuracy of the HSI oscillator
T
A
= -40 to
105°C
-2.8
(3)
3. Guaranteed by characterization results.
-3.8
(3)
%
T
A
= -10 to 85°C -1.9
(3)
-2.3
(3)
T
A
= 0 to 85°C -1.9
(3)
-2
(3)
T
A
= 0 to 70°C -1.3
(3)
-2
(3)
T
A
= 0 to 55°C -1
(3)
-2
(3)
T
A
= 25°C
(4)
4. Factory calibrated, parts not soldered.
-1 - 1
t
su(HSI)
HSI oscillator startup time - 1
(2)
-2
(2)
µs
I
DDA(HSI)
HSI oscillator power
consumption
- - 80 100
(2)
µA
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