MM32F103CET datasheet(55/89 Pages) MINDMOTION

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DS_MM32F103xx_o_Ver1.13

Electrical characteristics

Table 22. HSI oscillator characteristics(1)(2)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fHSI

Frequency

MHz

ACCHSI

Accuracy of the HSI oscillator

TA = -40◦C

∼

105◦C

-5

ACCHSI

Accuracy of the HSI oscillator

TA = -10◦C

∼ 85◦C

-3

ACCHSI

Accuracy of the HSI oscillator

TA = 0◦C

∼ 70◦C

-2

ACCHSI

Accuracy of the HSI oscillator

TA = 25

-1

tSU(HSI)

HSI oscillator startup time

μS

IDD(HSI)

HSI oscillator power

consumption

200

μA

1. VDD = 3.3V, TA = - 40◦C

∼ 105◦C, unless otherwise specified.

2. Guaranteed by design, not tested in production.

Low-speed internal (LSI) oscillator

Table 23. LSI oscillator characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fLSI

(

Frequency

KHz

tSU(LSI)

(

LSI oscillator startup time

μS

IDD(LSI)

(

LSI oscillator power

consumption

1.1

1.7

μA

1. VDD = 3.3V, TA = -40◦C

∼ 105◦C, Unless otherwise stated

2. Comprehensive assessment, not tested in production.

3. Guaranteed by design, not tested in production.

Wake-up times from low power mode

The wake-up times listed in the table below are measured during the wake-up phase of

the internal clock HSI. The clock source used when waking up depends on the current

operating mode:

• Stop or Standby mode: The clock source is the oscillator

• Sleep mode: The clock source is the clock used when entering sleep mode

All times are measured using ambient temperature and supply voltage in accordance with

common operating conditions.

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