STM32H7B3AI datasheet(112/238 Pages) STMICROELECTRONICS

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Symbol

Parameter

Conditions

Min(1) Typ(1) Max(1) Unit

∆VDD(CSI)

CSI oscillator frequency drift over VDD

VDD = 1.62 to 3.6 V

−0.06

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, unless otherwise specified.

2. Calibrated during manufacturing tests.

3. Guaranteed by characterization results.

Low-speed internal (LSI) RC oscillator

Table 54. LSI oscillator characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fLSI

LSI frequency

VDD = 3.3 V, TJ = 25 °C

31,4(1)

32 32,6(1)

kHz

TJ = –40 to 110 °C, VDD = 1.62 to 3.6 V 29,76(2)

33,6(2)

TJ = –40 to 130 °C, VDD = 1.62 to 3.6 V 29,4(2)

33,6(2)

tsu(LSI)(3)

LSI oscillator startup time

130

µs

tstab(LSI)(3)

LSI oscillator stabilization time (5% of final

value)

120

170

IDD(LSI)(3)

LSI oscillator power consumption

130

280

1. Calibrated during manufacturing tests.

2. Guaranteed by characterization results.

3. Guaranteed by design.

6.3.11

PLL characteristics

The parameters given in Table 55. PLL characteristics (wide VCO frequency range) are derived from tests

performed under temperature and VDD supply voltage conditions summarized in Table 22. General operating

conditions.

Table 55. PLL characteristics (wide VCO frequency range)

Symbol

Parameter

Conditions

Min(1) Typ(1) Max(1) Unit

fPLL_IN

PLL input clock

MHz

PLL input clock duty cycle

fPLL_P_OUT PLL multiplier output clock P, Q, R

VOS0

280(2)

MHz

VOS1

225(2)

VOS2

160(2)

VOS3

88(2)

fVCO_OUT PLL VCO output

128

560(3)

tLOCK

PLL lock time

Normal mode

100(3)

µs

Sigma-delta mode (fPLL_IN ≥ 8 MHz)

120(3)

Jitter

Cycle-to-cycle jitter

fVCO_OUT = 128 MHz

±ps

fVCO_OUT = 200 MHz

fVCO_OUT = 400 MHz

STM32H7B3xI

Operating conditions

DS13139 - Rev 8

page 112/238

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