Datasheet

Electrical characteristics STM32L431xx
120/200 DocID028800 Rev 1
f
PLL_P_OUT
PLL multiplier output clock P
Voltage scaling Range 1 3.0968 - 80
MHz
Voltage scaling Range 2 3.0968 - 26
f
PLL_Q_OUT
PLL multiplier output clock Q
Voltage scaling Range 1 12 - 80
MHz
Voltage scaling Range 2 12 - 26
f
PLL_R_OUT
PLL multiplier output clock R
Voltage scaling Range 1 12 - 80
MHz
Voltage scaling Range 2 12 - 26
f
VCO_OUT
PLL VCO output
Voltage scaling Range 1 96 - 344
MHz
Voltage scaling Range 2 96 - 128
t
LOCK
PLL lock time - - 15 40 s
Jitter
RMS cycle-to-cycle jitter
System clock 80 MHz
-40-
±ps
RMS period jitter - 30 -
I
DD
(PLL)
PLL power consumption on
V
DD
(1)
VCO freq = 96 MHz - 200 260
AVCO freq = 192 MHz - 300 380
VCO freq = 344 MHz - 520 650
1. Guaranteed by design.
2. Take care of using the appropriate division factor M to obtain the specified PLL input clock values. The M factor is shared
between the 2 PLLs.
Table 51. PLL, PLLSAI1 characteristics
(1)
(continued)
Symbol Parameter Conditions Min Typ Max Unit
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