STM32F303 datasheet(81/133 Pages) STMICROELECTRONICS

tên linh kiện	STM32F303

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STM32F302xx/STM32F303xx

Electrical characteristics

Doc ID 023353 Rev 5

81/133

Low-speed internal (LSI) RC oscillator

6.3.9

PLL characteristics

The parameters given in Table 44 are derived from tests performed under ambient

temperature and supply voltage conditions summarized in Table 22.

Table 43.

LSI oscillator characteristics(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)

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 44.

PLL characteristics

Symbol

Parameter

Value

Unit

Min

Typ

Max

fPLL_IN

PLL input clock(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)

Guaranteed by design, not tested in production.

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