STM32L151XX Datasheet, PDF (73/121 Pages) STMicroelectronics – Ultra-low-power 32-bit MCU ARM-based Cortex-M3, 128KB Flash, 16KB SRAM, 4KB EEPROM, LCD, USB, ADC, DAC

STM32L151x6/8/B, STM32L152x6/8/B
Electrical characteristics
6.3.7
Table 32. MSI oscillator characteristics (continued)
Symbol
Parameter
Condition
Typ Max Unit
t_STAB(MSI)(2) MSI oscillator stabilization time
f_OVER(MSI) MSI oscillator frequency overshoot
MSI range 0
MSI range 1
MSI range 2
MSI range 3
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
40
20
10
4
2.5
µs
2
2
3
4
MHz
6
1. This is a deviation for an individual part, once the initial frequency has been measured.
2. Based on characterization, not tested in production.
PLL characteristics
The parameters given in Table 33 are derived from tests performed under ambient
temperature and V_DD supply voltage conditions summarized in Table 14.
Table 33. PLL characteristics
Symbol
Parameter
Value
Min
Typ
Max⁽¹⁾
Unit
PLL input clock⁽²⁾
2
f_{PLL_IN}
PLL input clock duty cycle
45
24
MHz
55
%
f_{PLL_OUT}
t_LOCK
PLL output clock
Worst case PLL lock time
PLL input = 2 MHz
PLL VCO = 96 MHz
2
100
32
MHz
130
µs
Jitter
Cycle-to-cycle jitter
± 600
ps
I_DDA(PLL)
I_DD(PLL)
Current consumption on V_DDA
Current consumption on V_DD
220
450
µA
120
150
1. Based on characterization, not tested in production.
2. Take care of using the appropriate multiplier factors so as to have PLL input clock values compatible with
the range defined by f_{PLL_OUT}.
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