STM32F303VE datasheet(97/184 Pages) STMICROELECTRONICS

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STM32F303xD STM32F303xE

Electrical characteristics

161

Low-speed internal (LSI) RC oscillator

6.3.9

PLL characteristics

The parameters given in Table 41 are derived from tests performed under ambient

temperature and supply voltage conditions summarized in Table 19.

Table 40. LSI oscillator characteristics(1)

1. VDDA = 3.3 V, TA = –40 to 105 °C unless otherwise specified.

Symbol

Parameter

Min

Typ

Max

Unit

fLSI

Frequency

kHz

tsu(LSI)(2)

2. Guaranteed by design, not tested in production.

LSI oscillator startup time

µs

IDD(LSI)(2) LSI oscillator power consumption

0.75

1.2

µA

Table 41. PLL characteristics

Symbol

Parameter

Value

Unit

Min

Typ

Max

fPLL_IN

PLL input clock(1)

1. Take care of using the appropriate multiplier factors so as to have PLL input clock values compatible with

the range defined by fPLL_OUT.

1(2)

-24(2)

MHz

PLL input clock duty cycle

40(2)

-60(2)

fPLL_OUT

PLL multiplier output clock

16(2)

-72

MHz

tLOCK

PLL lock time

200(2)

µs

Jitter

Cycle-to-cycle jitter

300(2)

2. Guaranteed by design, not tested in production.

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