STM32L432KB datasheet(96/149 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L432KB STM3L432KC

96/149

DocID028798 Rev 2

Figure 16. 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 46. HSI48 oscillator characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 47. 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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