Datasheet

Electrical characteristics STM32F21xxx
92/175 DocID17050 Rev 9
Figure 33. ACC
LSI
versus temperature
6.3.10 PLL characteristics
The parameters given in Table 33 and Table 34 are derived from tests performed under
temperature and V
DD
supply voltage conditions summarized in Table 13.
MS19013V1
-40
-30
-20
-10
0
10
20
30
40
50
-45-35-25-15-5 5 152535455565758595105
Normali zed deviati on (%)
Temperat ure (°C)
max
avg
min
Table 33. Main PLL characteristics
Symbol Parameter Conditions Min Typ Max Unit
f
PLL_IN
PLL input clock
(1)
0.95
(2)
12.10
(2)
MHz
f
PLL_OUT
PLL multiplier output clock 24 - 120 MHz
f
PLL48_OUT
48 MHz PLL multiplier output
clock
-- 48MHz
f
VCO_OUT
PLL VCO output 192 - 432 MHz
t
LOCK
PLL lock time
VCO freq = 192 MHz 75 - 200
µs
VCO freq = 432 MHz 100 - 300