Data Sheet

Electrical characteristics STM32F030x4/6/8/C
60/96 DocID024849 Rev 2
6.3.8 Internal clock source characteristics
The parameters given in Table 35 are derived from tests performed under ambient
temperature and supply voltage conditions summarized in Table 21: General operating
conditions. The provided curves are characterization results, not tested in production.
High-speed internal (HSI) RC oscillator
High-speed internal 14 MHz (HSI14) RC oscillator (dedicated to ADC)
Table 35. HSI oscillator characteristics
(1)
1. V
DDA
= 3.3 V, T
A
= -40 to 85°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, not tested in production.
%
DuCy
HSI
Duty cycle - 45
(2)
-55
(2)
%
ACC
HSI
Accuracy of the HSI oscillator
(factory calibrated)
T
A
= -40 to 85°C - ±5 - %
T
A
= 25°C - ±1
(3)
3. With user calibration.
-%
t
SU(HSI)
HSI oscillator startup time - 1
(2)
-2
(2)
μs
I
DDA(HSI)
HSI oscillator power
consumption
- - 80 - μA
Table 36. HSI14 oscillator characteristics
(1)
1. V
DDA
= 3.3 V, T
A
= -40 to 85 °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 85 °C - ±5 %
t
su(HSI14)
HSI14 oscillator startup time 1
(2)
-2
(2)
μs
I
DDA(HSI14)
HSI14 oscillator power
consumption
- 100 - μA