STM32L443CC datasheet(125/207 Pages) STMICROELECTRONICS

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STM32L443CC STM32L443RC STM32L443VC

Electrical characteristics

177

Figure 25. HSI48 frequency versus temperature

Low-speed internal (LSI) RC oscillator

NT jitter

Next transition jitter

Accumulated jitter on 28 cycles(4)

+/-0.15(2)

-ns

PT jitter

Paired transition jitter

Accumulated jitter on 56 cycles(4)

+/-0.25(2)

-ns

1. VDD = 3 V, TA = –40 to 125°C unless otherwise specified.

2. Guaranteed by design.

3. Guaranteed by characterization results.

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

Table 48. HSI48 oscillator characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 49. LSI oscillator characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max Unit

fLSI

LSI Frequency

VDD = 3.0 V, TA = 30 °C

31.04

32.96

kHz

VDD = 1.62 to 3.6 V, TA = -40 to 125 °C

29.5

tSU(LSI)(2)

LSI oscillator start-

up time

130

μs

tSTAB(LSI)(2)

LSI oscillator

stabilization time

5% of final frequency

125

180

μs

IDD(LSI)(2)

LSI oscillator power

consumption

110

180

1. Guaranteed by characterization results.

2. Guaranteed by design.

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