STM32G474CB datasheet(125/236 Pages) STMICROELECTRONICS

125 / 236 page

DS12288 Rev 4

125/236

STM32G474xB STM32G474xC STM32G474xE

Electrical characteristics

201

5.3.9

PLL characteristics

The parameters given in Table 46 are derived from tests performed under temperature and

VDD supply voltage conditions summarized in Table 17: General operating conditions.

tSTAB(LSI)(2)

LSI oscillator stabilization

time

5% of final frequency

125

180

μs

IDD(LSI)(2)

LSI oscillator power

consumption

110

180

1. Guaranteed by characterization results.

2. Guaranteed by design.

Table 45. LSI oscillator characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 46. PLL characteristics(1)

1. Guaranteed by design.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fPLL_IN

PLL input clock(2)

2. Take care of using the appropriate division factor M to obtain the specified PLL input clock

values.

-2.66

MHz

PLL input clock duty cycle

fPLL_P_OUT PLL multiplier output clock P

Voltage scaling Range 1

Boost mode

2.0645

170

MHz

Voltage scaling Range 1

2.0645

150

Voltage scaling Range 2

2.0645

fPLL_Q_OUT PLL multiplier output clock Q

Voltage scaling Range 1

Boost mode

170

Voltage scaling Range 1

150

Voltage scaling Range 2

fPLL_R_OUT PLL multiplier output clock R

Voltage scaling Range 1

Boost mode

170

Voltage scaling Range 1

150

Voltage scaling Range 2

fVCO_OUT PLL VCO output

Voltage scaling Range 1

344

Voltage scaling Range 2

128

tLOCK

PLL lock time

μs

Jitter

RMS cycle-to-cycle jitter

System clock 150 MHz

28.6

±ps

RMS period jitter

21.4

IDD(PLL)

PLL power consumption on

VDD(1)

VCO freq = 96 MHz

200

260

μA

VCO freq = 192 MHz

300

380

VCO freq = 344 MHz

520

650

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