STM32WB55RYU7ATR Ver la hoja de datos (PDF) - STMicroelectronics

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STM32WB55RYU7ATR

Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5 and 802.15.4 radio solution

STMicroelectronics 

STM32WB55xx STM32WB35xx

Electrical characteristics

Table 63. LSI2 oscillator characteristics(1)

Symbol

Parameter

Conditions

Min Typ Max Unit

fLSI2

LSI2 frequency

tSU(LSI2)(2)

IDD(LSI2)(2)

LSI2 oscillator start-up time

LSI2 oscillator power

consumption

VDD = 3.0 V, TA = 30 °C

21.6 - 44.2

kHz

VDD = 1.62 to 3.6 V, TA = -40 to 125 °C 21.2 - 44.4

-

0.7 - 3.5 ms

-

- 500 1180 nA

1. Guaranteed by characterization results.

2. Guaranteed by design.

6.3.12 PLL characteristics

The parameters given in Table 64 are derived from tests performed under temperature and

VDD supply voltage conditions summarized in Table 24: General operating conditions.

Table 64. PLL, PLLSAI1 characteristics(1)

Symbol

Parameter

Conditions

PLL input clock(2)

-

fPLL_IN PLL input clock duty cycle

-

fPLL_P_OUT PLL multiplier output clock P

Voltage scaling Range 1

Voltage scaling Range 2

fPLL_Q_OUT PLL multiplier output clock Q

Voltage scaling Range 1

Voltage scaling Range 2

fPLL_R_OUT PLL multiplier output clock R

Voltage scaling Range 1

Voltage scaling Range 2

fVCO_OUT PLL VCO output

Voltage scaling Range 1

Voltage scaling Range 2

tLOCK

Jitter

PLL lock time

RMS cycle-to-cycle jitter

RMS period jitter

-

System clock 64 MHz

IDD(PLL)

PLL power consumption

on VDD(1)

VCO freq = 96 MHz

VCO freq = 192 MHz

VCO freq = 344 MHz

Min Typ Max Unit

2.66 - 16 MHz

45

- 55 %

2

- 64

2

- 16

8

- 64

8

- 16

MHz

8

- 64

8

- 16

96

- 344

64

- 128

-

15 40 μs

-

40 -

ps

-

30 -

-

200 260

-

300 380 μA

-

520 650

1. Guaranteed by design.

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

between the two PLLs.

DS11929 Rev 10

129/193

169

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