STM32L031X4 Datasheet, PDF (73/118 Pages) STMicroelectronics – Access line ultra-low-power 32-bit MCU ARM-based Cortex-M0+, up to 32KB Flash, 8KB SRAM, 1KB EEPROM, ADC

STM32L031x4/6
Electrical characteristics
6.3.8
Table 43. MSI oscillator characteristics (continued)
Symbol
Parameter
Condition
Typ
t_SU(MSI) MSI oscillator startup time
MSI range 0
30
MSI range 1
20
MSI range 2
15
MSI range 3
10
MSI range 4
6
MSI range 5
5
MSI range 6,
Voltage range 1 3.5
and 2
MSI range 6,
Voltage range 3
5
MSI range 0
-
MSI range 1
-
MSI range 2
-
MSI range 3
-
t_STAB(MSI)(2) MSI oscillator stabilization time
f_OVER(MSI) MSI oscillator frequency overshoot
MSI range 4
-
MSI range 5
-
MSI range 6,
Voltage range 1
-
and 2
MSI range 3,
Voltage range 3
-
Any range to
range 5
-
Any range to
range 6
-
1. This is a deviation for an individual part, once the initial frequency has been measured.
2. Guaranteed by characterization results.
Max Unit
-
-
-
-
-
µs
-
-
-
40
20
10
4
2.5
µs
2
2
3
4
MHz
6
PLL characteristics
The parameters given in Table 44 are derived from tests performed under ambient
temperature and V_DD supply voltage conditions summarized in Table 20.
Symbol
f_{PLL_IN}
Table 44. PLL characteristics
Parameter
Value
Min
Typ
PLL input clock⁽²⁾
2
-
PLL input clock duty cycle
45
-
Max⁽¹⁾
24
55
Unit
MHz
%
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