STM32H753AI datasheet(129/361 Pages) STMICROELECTRONICS

129 / 361 page

DS12117 Rev 8

129/360

STM32H753xI

Electrical characteristics (rev Y)

318

Low-speed internal (LSI) RC oscillator

6.3.10

PLL characteristics

The parameters given in Table 49 are derived from tests performed under temperature and

VDD supply voltage conditions summarized in Table 23: General operating conditions.

∆TEMP (CSI)

CSI oscillator frequency drift over

temperature

TJ = 0 to 85 °C

−3.7(3)

4.5(3)

TJ = −40 to 125 °C

−11(3)

7.5(3)

DVDD (CSI)

CSI oscillator frequency drift over

VDD

VDD = 1.62 to 3.6 V

−

0.06

tsu(CSI)

CSI oscillator startup time

µs

tstab(CSI)

CSI oscillator stabilization time

(to reach ±3% of fCSI)

cycle

IDD(CSI)

CSI oscillator power consumption

µA

1. Guaranteed by design.

2. Guaranteed by test in production.

3. Guaranteed by characterization.

Table 47. CSI oscillator characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 48. LSI oscillator characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fLSI(1)

1. Guaranteed by characterization results.

LSI frequency

VDD = 3.3 V, TJ = 25 °C

31.4

32.6

kHz

TJ = –40 to 105 °C, VDD =

1.62 to 3.6 V

29.76

33.60

tsu(LSI)(2)

2. Guaranteed by design.

LSI oscillator startup time

130

µs

tstab(LSI)(2)

LSI oscillator stabilization

time (5% of final value)

120

170

IDD(LSI)(2)

LSI oscillator power

consumption

130

280

Table 49. PLL characteristics (wide VCO frequency range)(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fPLL_IN

PLL input clock

MHz

PLL input clock duty cycle

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