Pll Characteristics; Table 41. Lsi Oscillator Characteristics; Table 42. Pll Characteristics - STMicroelectronics STM32F042G4 Manual

Electrical characteristics
Low-speed internal (LSI) RC oscillator
Symbol
f
LSI
(2)
t
su(LSI)
I
DDA(LSI)
1. V = 3.3 V, T
DDA
2. Guaranteed by design, not tested in production.
6.3.9

PLL characteristics

The parameters given in
temperature and supply voltage conditions summarized in
conditions.
Symbol
f
PLL_IN
f
PLL_OUT
t
LOCK
Jitter
PLL
1. Take care to use the appropriate multiplier factors to obtain PLL input clock values compatible with the
range defined by f
2. Guaranteed by design, not tested in production.
72/117

Table 41. LSI oscillator characteristics

Parameter
Frequency
LSI oscillator startup time
(2)
LSI oscillator power consumption
= –40 to 105 °C unless otherwise specified.
A
Table 42

Table 42. PLL characteristics

Parameter
(1)
PLL input clock
PLL input clock duty cycle
PLL multiplier output clock
PLL lock time
Cycle-to-cycle jitter
.
PLL_OUT
DocID025832 Rev 2
Min
30
-
-
are derived from tests performed under ambient
Min
(2)
1
(2)
40
(2)
16
-
-
STM32F042xx
(1)
Typ Max
40 50
- 85
0.75 1.2
Table 21: General operating
Value
Typ Max
(2)
8.0 24
(2)
- 60
- 48
(2)
- 200
(2)
- 300
Unit
kHz
μs
μA
Unit
MHz
%
MHz
μs
ps