STM32L031C6 datasheet(72/118 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L031x4/6

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DocID027063 Rev 4

Low-speed internal (LSI) RC oscillator

Multi-speed internal (MSI) RC oscillator

Table 42. LSI oscillator characteristics

Symbol

Parameter

Min

Typ

Max

Unit

fLSI(1)

1. Guaranteed by test in production.

LSI frequency

kHz

DLSI(2)

2. This is a deviation for an individual part, once the initial frequency has been measured.

LSI oscillator frequency drift

0°C

 TA  85°C

-10

tsu(LSI)(3)

3. Guaranteed by design.

LSI oscillator startup time

200

µs

IDD(LSI)(3) LSI oscillator power consumption

400

510

Table 43. MSI oscillator characteristics

Symbol

Parameter

Condition

Typ

Max Unit

fMSI

Frequency after factory calibration, done at

VDD= 3.3 V and TA = 25 °C

MSI range 0

65.5

kHz

MSI range 1

131

MSI range 2

262

MSI range 3

524

MSI range 4

1.05

MHz

MSI range 5

2.1

MSI range 6

4.2

ACCMSI

Frequency error after factory calibration

0.5

DTEMP(MSI)(1)

MSI oscillator frequency drift

0°C

 TA  85 °C

3-

DVOLT(MSI)(1)

MSI oscillator frequency drift

1.65 V

 VDD  3.6 V, TA = 25 °C

2.5

%/V

IDD(MSI)(2)

MSI oscillator power consumption

MSI range 0

0.75

µA

MSI range 1

MSI range 2

1.5

MSI range 3

2.5

MSI range 4

4.5

MSI range 5

MSI range 6

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