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STM32L063C8 Datasheet, PDF (75/121 Pages) STMicroelectronics – Ultra-low-power platform
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STM32L063x8
Electrical characteristics
6.3.7
Internal clock source characteristics
The parameters given in Table 45 are derived from tests performed under ambient
temperature and VDD supply voltage conditions summarized in Table 24.
High-speed internal 16 MHz (HSI16) RC oscillator
Table 45. 16 MHz HSI16 oscillator characteristics
Symbol
Parameter
Conditions
Min Typ Max Unit
fHSI16
(1)(2)
TRIM
Frequency
HSI16 user-
trimmed resolution
ACC(2H)SI16
Accuracy of the
factory-calibrated
HSI16 oscillator
tSU(HSI16)(2)
HSI16 oscillator
startup time
VDD = 3.0 V
-
Trimming code is not a multiple of 16 -
Trimming code is a multiple of 16
VDDA = 3.0 V, TA = 25 °C
VDDA = 3.0 V, TA = 0 to 55 °C
VDDA = 3.0 V, TA = -10 to 70 °C
VDDA = 3.0 V, TA = -10 to 85 °C
VDDA = 3.0 V, TA = -10 to 105 °C
VDDA = 1.65 V to 3.6 V
TA = − 40 to 125 °C
-
-1(3)
-1.5
-2
-2.5
-4
-5.45
-
-
16
0.4
-
-
-
-
-
-
-
3.7
-
0.7
1.5
1(3)
1.5
2
2
2
3.25
6
MHz
%
%
%
%
%
%
%
%
µs
IDD(HSI16)(2)
HSI16 oscillator
power consumption
-
- 100 140 µA
1. The trimming step differs depending on the trimming code. It is usually negative on the codes which are
multiples of 16 (0x00, 0x10, 0x20, 0x30...0xE0).
2. Guaranteed by characterization results.
3. Guaranteed by test in production.
Figure 20. HSI16 minimum and maximum value versus temperature





   






      
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