STM32L062T8 datasheet(66/118 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L062x8

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DocID025937 Rev 8

High-speed internal 48 MHz (HSI48) RC oscillator

Low-speed internal (LSI) RC oscillator

Multi-speed internal (MSI) RC oscillator

Table 39. HSI48 oscillator characteristics(1)

1. VDDA = 3.3 V, TA = –40 to 125 °C unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fHSI48

Frequency

MHz

TRIM

HSI48 user-trimming step

0.09(2)

0.14

0.2(2)

DuCy(HSI48) Duty cycle

45(2)

2. Guaranteed by design.

-55(2)

ACCHSI48

Accuracy of the HSI48

oscillator (factory calibrated

before CRS calibration)

TA = 25 °C

-4(3)

3. Guaranteed by characterization results.

-4(3)

tsu(HSI48)

HSI48 oscillator startup time

6(2)

µs

IDDA(HSI48)

HSI48 oscillator power

consumption

330

380(2)

µA

Table 40. 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 41. 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

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