Table 36. Hsi14 Oscillator Characteristics; Figure 19. Hsi14 Oscillator Accuracy Characterization Results - STMicroelectronics STM32F031F4 Manual

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STM32F031x4 STM32F031x6
High-speed internal 14 MHz (HSI14) RC oscillator (dedicated to ADC)
Symbol
f
HSI14
TRIM
DuCy
(HSI14)
ACC
HSI14
t
su(HSI14)
I
DDA(HSI14)
1. V = 3.3 V, T
DDA
2. Guaranteed by design, not tested in production.
3. Data based on characterization results, not tested in production.
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Table 36. HSI14 oscillator characteristics

Parameter
Frequency
HSI14 user-trimming step
Duty cycle
Accuracy of the HSI14
oscillator (factory calibrated)
HSI14 oscillator startup time
HSI14 oscillator power
consumption
= –40 to 105 °C unless otherwise specified.
A

Figure 19. HSI14 oscillator accuracy characterization results

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Conditions
-
-
-
T = –40 to 105 °C –4.2
A
T = –10 to 85 °C
A
T = 0 to 70 °C
A
T = 25 °C
A
-
-
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Electrical characteristics
(1)
Min Typ Max
- 14 -
(2)
- - 1
(2) (2)
45 - 55
(3) (3)
- 5.1
(3) (3)
–3.2 - 3.1
(3) (3)
–2.5 - 2.3
–1 - 1
(2) (2)
1 - 2
(2)
- 100 150
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Unit
MHz
%
%
%
%
%
%
µs
µA
63/113
86