Datasheet

DocID027973 Rev 5 67/119
STM32L011x3/4 Electrical characteristics
93
6.3.7 Internal clock source characteristics
The parameters given in Table 38 are derived from tests performed under ambient
temperature and V
DD
supply voltage conditions summarized in Table 18.
High-speed internal 16 MHz (HSI16) RC oscillator
Figure 22. HSI16 minimum and maximum value versus temperature
Table 38. 16 MHz HSI16 oscillator characteristics
Symbol Parameter Conditions Min Typ Max Unit
f
HSI16
Frequency V
DD
= 3.0 V - 16 - MHz
TRIM
(1)(2)
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).
HSI16 user-
trimmed resolution
Trimming code is not a multiple of 16 - ± 0.4 0.7 %
Trimming code is a multiple of 16 - - ± 1.5 %
ACC
HSI16
(2)
2. Guaranteed by characterization results, not tested in production.
Accuracy of the
factory-calibrated
HSI16 oscillator
V
DDA
= 3.0 V, T
A
= 25 °C -1
(3)
3. Guaranteed by test in production.
-1
(3)
%
V
DDA
= 3.0 V, T
A
= 0 to 55 °C -1.5 - 1.5 %
V
DDA
= 3.0 V, T
A
= -10 to 70 °C -2 - 2 %
V
DDA
= 3.0 V, T
A
= -10 to 85 °C -2.5 - 2 %
V
DDA
= 3.0 V, T
A
= -10 to 105 °C -4 - 2 %
V
DDA
= 1.65 V to 3.6 V
T
A
= -40 to 125 °C
-5.45 - 3.25 %
t
SU(HSI16)
(2)
HSI16 oscillator
startup time
- - 3.7 6 µs
I
DD(HSI16)
(2)
HSI16 oscillator
power consumption
- - 100 140 µA
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