STM32WBA50KG datasheet(80/110 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32WBA50KG

80/110

DS14688 Rev 1

Low-speed internal (LSI) RC oscillator

5.3.11

PLL characteristics

The parameters given in Table 54 are derived from tests performed at ambient temperature

and under the supply voltage conditions summarized in Table 26.

TRIM(2)

User trimming step

kHz

DuCyHSI16(2)

Duty cycle

tsu(HSI16)(2)

Startup time

2.5

3.6

μs

tstab(HSI16)(2)

Stabilization time

IDD(HSI16)(2)

Power consumption

150

210

μA

1. Evaluated by characterization, not tested in production, unless otherwise specified. It does not take into account package

and soldering effects.

2. Specified by design, not tested in production.

Table 52. HSI16 oscillator characteristics (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 53. LSI1 oscillator characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fLSI1

Frequency

VDD = 3.0 V, TJ = 30 °C, LSIPREDIV = 1

0.245 0.25 0.255

kHz

VDD = 3.0 V, TJ = 30 °C, LSIPREDIV = 0

31.4

32.0

32.6

1.71 V ≤ VDD ≤ 3.6 V, TJ = -40 to 85 °C,

LSIPREDIV = 0 (1)

30.4

32.0

33.6

DuCyLSI1

Duty cycle

LSIPREDIV = 1

tSU(LSI1)(2) Startup time

230

260

μs

tSTAB(LSI1)(2) Stabilization time 5% of final frequency

230

260

IDD(LSI1)(2)

Power

consumption

LSIPREDIV = 0

140

255

LSIPREDIV = 1

130

240

1. Evaluated by characterization, not tested in production, unless otherwise specified.

2. Specified by design, not tested in production.

Table 54. PLL characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fPLL_IN(1)

PLL input clock

MHz

DuCyPLL_IN(1) PLL input clock duty cycle

fPLL_OUT(1)

PLL output clock P, Q, and R

100

MHz

DuCyPLL_OUT(1) PLL output clock duty cycle

Division 1

fVCO_OUT(1)

PLL VCO output

128

544

MHz

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