Datasheet

Electrical characteristics STM32F412xE/G
106/193 DocID028087 Rev 4
6.3.9 Internal clock source characteristics
The parameters given in Table 42 and Table 43 are derived from tests performed under
ambient temperature and V
DD
supply voltage conditions summarized in Table 15.
High-speed internal (HSI) RC oscillator
L
Figure 31. ACC
HSI
versus temperature
1. Guaranteed by characterization, not tested in production.
Table 42. HSI oscillator characteristics
(1)
1. V
DD
= 3.3 V, T
A
= –40 to 105 °C unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
f
HSI
Frequency - - 16 - MHz
ACC
HSI
HSI user trimming step
(2)
2. Guaranteed by design, not tested in production
---1%
Accuracy of the HSI oscillator
T
A
= –40 to 105 °C
(3)
3. Based on characterization, not tested in production
–8 - 4.5 %
T
A
= –10 to 85 °C
(3)
–4 - 4 %
T
A
= 25 °C
(4)
4. Factory calibrated, parts not soldered.
–1 - 1 %
t
su(HSI)
(2)
HSI oscillator startup time - - 2.2 4 µs
I
DD(HSI)
(2)
HSI oscillator power
consumption
- - 60 80 µA
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(3)
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