STM32WB50CG datasheet(84/119 Pages) STMICROELECTRONICS

Part #	STM32WB50CG

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

PDF	119 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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84 / 119 page

Electrical characteristics

STM32WB50CG STM32WB30CE

84/119

DS13047 Rev 5

High-speed internal 48 MHz (HSI48) RC oscillator

Table 54. HSI48 oscillator characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fHSI48

HSI48 frequency

VDD = 3.0 V, TA = 30 °C

MHz

TRIM

HSI48 user trimming step

0.11(2)

0.18(2)

USER TRIM

COVERAGE

HSI48 user trimming coverage

±32 steps

±3(3)

±3.5(3)

DuCy(HSI48) Duty cycle

45(2)

-55(2)

ACCHSI48_REL

Accuracy of the HSI48 oscillator

over temperature



(factory calibrated)

VDD = 3.0 V to 3.6 V,

TA = –10 to 85 °C

±3(3)

VDD = 2 V to 3.6 V,

TA = –10 to 85 °C

±4.5(3)

DVDD(HSI48)

HSI48 oscillator frequency drift



with VDD

VDD = 3 V to 3.6 V

0.025(3)

0.05(3)

VDD = 2 V to 3.6 V

0.05(3)

0.1(3)

tsu(HSI48)

HSI48 oscillator start-up time

2.5(2)

6(2)

μs

IDD(HSI48)

HSI48 oscillator power consumption

340(2)

380(2)

μA

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 = –10 to 85 °C unless otherwise specified.

2. Guaranteed by design.

3. Guaranteed by characterization results.

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

STM32WB50CG Datasheet(PDF) 84 Page - STMicroelectronics

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