Datasheet

Electrical characteristics STM32L433xx
140/224 DocID028794 Rev 4
Figure 26. HSI48 frequency versus temperature
Low-speed internal (LSI) RC oscillator
N
T
jitter
Next transition jitter
Accumulated jitter on 28 cycles
(4)
--+/-0.15
(2)
-ns
P
T
jitter
Paired transition jitter
Accumulated jitter on 56 cycles
(4)
--+/-0.25
(2)
-ns
1. V
DD
= 3 V, T
A
= –40 to 125°C unless otherwise specified.
2. Guaranteed by design.
3. Guaranteed by characterization results.
4. Jitter measurement are performed without clock source activated in parallel.
Table 60. HSI48 oscillator characteristics
(1)
(continued)
Symbol Parameter Conditions Min Typ Max Unit
06Y9







         
$YJ PLQ PD[
&

Table 61. LSI oscillator characteristics
(1)
Symbol Parameter Conditions Min Typ Max Unit
f
LSI
LSI Frequency
V
DD
= 3.0 V, T
A
= 30 °C 31.04 - 32.96
kHz
V
DD
= 1.62 to 3.6 V, T
A
= -40 to 125 °C 29.5 - 34
t
SU
(LSI)
(2)
LSI oscillator start-
up time
--80130s
t
STAB
(LSI)
(2)
LSI oscillator
stabilization time
5% of final frequency - 125 180 s
I
DD
(LSI)
(2)
LSI oscillator power
consumption
--110180nA
1. Guaranteed by characterization results.
2. Guaranteed by design.
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