STM32WB55 datasheet(128/193 Pages) STMICROELECTRONICS

Part #	STM32WB55

Description	Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5.2 and 802.15.4 radio solution

PDF	193 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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128 / 193 page

Electrical characteristics

STM32WB55xx STM32WB35xx

128/193

DS11929 Rev 11

Figure 26. HSI48 frequency vs. temperature

Low-speed internal (LSI) RC oscillator

NT jitter

Next transition jitter



Accumulated jitter on 28 cycles(4)

±0.15(2)

PT jitter

Paired transition jitter



Accumulated jitter on 56 cycles(4)

±0.25(2)

1. VDD = 3 V, TA = –40 to 125 °C unless otherwise specified.

2. Guaranteed by design.

3. Guaranteed by characterization results.

4. Jitter measurement are performed without clock source activated in parallel.

Table 61. HSI48 oscillator characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

MSv40989V1

-6

-4

-2

-50

-30

-10

110

130

Avg

min

max

°C

Table 62. LSI1 oscillator characteristics(1)

Symbol

Parameter

Conditions

Min

Typ Max Unit

fLSI

LSI1 frequency

VDD = 3.0 V, TA = 30 °C

31.04

32.96

kHz

VDD = 1.62 to 3.6 V, TA = -40 to 125 °C 29.5

tSU(LSI1)(2) LSI1 oscillator start-up time

130

μs

tSTAB(LSI1)(2) LSI1 oscillator stabilization time 5% of final frequency

125

180

IDD(LSI1)(2)

LSI1 oscillator power

consumption

110

180

1. Guaranteed by characterization results.

2. Guaranteed by design.

STM32WB55 Datasheet(PDF) 128 Page - STMicroelectronics

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