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STM32F031x4 STM32F031x6
Electrical characteristics
86
High-speed internal 14 MHz (HSI14) RC oscillator (dedicated to ADC)
Figure 19. HSI14 oscillator accuracy characterization results
Table 36. HSI14 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
HSI14
Frequency
-
-
14
-
MHz
TRIM
HSI14 user-trimming step
-
-
-
1
(2)
2.
Guaranteed by design, not tested in production.
%
DuCy
(HSI14)
Duty cycle
-
45
(2)
-
55
(2)
%
ACC
HSI14
Accuracy of the HSI14
oscillator (factory calibrated)
T
A
= –40 to 105 °C
–4.2
(3)
3.
Data based on characterization results, not tested in production.
-
5.1
(3)
%
T
A
= –10 to 85 °C
–3.2
(3)
-
3.1
(3)
%
T
A
= 0 to 70 °C
–2.5
(3)
-
2.3
(3)
%
T
A
= 25 °C
–1
-
1
%
t
su(HSI14)
HSI14 oscillator startup time
-
1
(2)
-
2
(2)
µs
I
DDA(HSI14)
HSI14 oscillator power
consumption
-
-
100
150
(2)
µA
-36
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021-31660491
