STM32U073RCU3 datasheet(75/146 Pages) STMICROELECTRONICS

75 / 146 page

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fMSI

MSI frequency after factory

calibration, done at VDD = 3 V

and TA = 30 °C

PLL mode

XTAL = 32.768 kHz

Range 6

MHz

3.998

Range 7

7.995

Range 8

15.991

Range 9

23.986

Range 10

32.014

Range 11

48.005

∆TEMP(MSI)(1)

MSI oscillator frequency drift

over temperature

MSI mode

TA = 0 to 85 °C

-3.5

TA = -40 to 125 °C

-8

∆VDD(MSI)(1)

MSI oscillator frequency drift

over VDD (reference is 3 V)

MSI mode

Range 0 to 3

VDD = 1.62 V to

3.6 V

-1.2

0.5

VDD = 2.4 V to

3.6 V

-0.5

Range 4 to 7

VDD = 1.62 V to

3.6 V

-2.5

0.7

VDD = 2.4 V to

3.6 V

-0.8

Range 8 to 11

VDD = 1.62 V to

3.6 V

-5

1.2

VDD = 2.4 V to

3.6 V

-1.6

∆FSAMPLING

(MSI)(1)(5)

Frequency variation in sampling

mode(2)

MSI mode

TA = -40 to 85 °C

TA = -40 to 125 °C

P_USB

Jitter(MSI)(5)

Period jitter for USB clock(3)

PLL mode

Range 11

for next

transition

3.458

for paired

transition

3.916

MT_USB

Jitter(MSI)(5)

Medium term jitter for USB

clock(4)

PLL mode

Range 11

for next

transition

for paired

transition

CC jitter(MSI)(5)

RMS cycle-to-cycle jitter

PLL mode Range 11

P jitter(MSI)(5)

RMS Period jitter

PLL mode Range 11

tSU(MSI)(5)

MSI oscillator start-up time

Range 0

μs

Range 1

Range 2

Range 3

Range 4 to 7

Range 8 to 11

2.5

tSTAB(MSI)(5)

MSI oscillator stabilization time

PLL mode

Range 11

10 % of final

frequency

0.25

0.5

5 % of final

frequency

0.5

1.25

1 % of final

frequency

2.5

IDD(MSI)(5)

MSI oscillator power

consumption

MSI and

PLL mode

Range 0

0.6

µA

STM32U073x8/B/C

Electrical characteristics

DS14548 - Rev 2

page 75/146

STM32U073RCU3 Datasheet(PDF) 75 Page - STMicroelectronics

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