STM32U545NET6QTR datasheet(197/283 Pages) STMICROELECTRONICS

Part #	STM32U545NET6QTR

Description	Ultra-low-power Arm® Cortex®-M33 MCUTrustZone®FPU,240 DMIPS, 512 KB flash memory, 274 KB SRAM, crypto

PDF	283 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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197 / 283 page

DS14216 Rev 1

197/283

STM32U545xx

Electrical characteristics

258

tsu(MSI)(3)

MSI oscillator

startup time(5)

MSI range 0 to 3

MSIRC0

cycles +

11 MSI

cycles

MSI range 4 to 7

MSIRC1

cycles +

11 MSI

cycles

MSI range 8 to 11

MSIRC2

cycles +

11 MSI

cycles

MSI range 12 to 15

MSIRC3

cycles +

11 MSI

cycles

tswitch(MSI)(3)

MSI oscillator

transition time(6)

destina-

tion MSI

cycles

tstab(MSI)(3)

MSI oscillator

stabilization time

Normal

mode

Continuous

mode(7)

Final frequency

--10

µs

Sampling

mode(8)

200

PLL mode,

MSIPLL

FAST = 0

All MSI

ranges

1% of final

frequency

0.8

PLL mode,

MSIPLL

FAST = 1

All MSI ranges

IDD(MSI_OFF

_PLLFAST)

(3)

MSI PLL-mode

oscillator power

consumption

when MSI is

disabled with

PLL accuracy

retention

MSIPLL

EN = 1 and

MSIPLL

FAST = 1

LDO

MSI range 0 to 3

6.6

µA

MSI range 4 to 7

1.6

MSI range 8 to 11

1.4

MSI range 12 to 15

0.8

SMPS

MSI range 0 to 3

4.7

MSI range 4 to 7

1.4

MSI range 8 to 11

1.3

MSI range 12 to 15

0.8

Table 82. MSI oscillator characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

STM32U545NET6QTR Datasheet(PDF) 197 Page - STMicroelectronics

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