STM32WB10CC datasheet(76/110 Pages) STMICROELECTRONICS

76 / 110 page

Electrical characteristics

STM32WB10CC

76/110

DS13259 Rev 2

6.3.10

Internal clock source characteristics

The parameters given in Table 49 are derived from tests performed under ambient

temperature and supply voltage conditions summarized in Table 20: General operating

conditions. The provided curves are characterization results, not tested in production.

High-speed internal (HSI16) RC oscillator

VLSEH

OSC32_IN input pin



high level voltage

0.7 VDDx

-VDDx

VLSEL

OSC32_IN input pin



low level voltage

-VSS

0.3 VDDx

tw(LSEH)

tw(LSEL)

OSC32_IN



high or low time

250

ftolLSE

Frequency tolerance

Includes initial accuracy,

stability over temperature,

aging and frequency pulling

-500

+500

ppm

1. Specified by design, not tested in production.

Table 48. Low-speed external user clock characteristics, bypass mode(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 49. HSI16 oscillator characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fHSI16

HSI16 frequency

VDD = 3.0 V, TA= 30 °C 15.88

16.08

MHz

TRIM

HSI16 user trimming step

Trimming code is not a

multiple of 64

0.2

0.3

0.4

Trimming code is a

multiple of 64

-4

-6

-8

DuCy(HSI16)(2) Duty cycle

∆Temp(HSI16)

HSI16 oscillator frequency drift



over temperature

TA = 0 to 85 °C

-1

TA = –10 to 85 °C

-2

1.5

∆VDD(HSI16)

HSI16 oscillator frequency drift



over VDD

VDD = 2.0 V to 3.6 V

-0.1

0.05

tsu(HSI16)(2)

HSI16 oscillator start-up time

0.8

1.2

μs

tstab(HSI16)(2) HSI16 oscillator stabilization time

IDD(HSI16)(2)

HSI16 oscillator power consumption

155

190

μA

1. Evaluated by characterization, not tested in production.

2. Specified by design, not tested in production.

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