ST STM32U585 Series Application Note

Contents
1 General information ...............................................................2
2 Power supply management ........................................................3
2.1 Power supplies ................................................................3
2.1.1 Independent analog peripherals supply........................................5
2.1.2 Independent I/O supply rail .................................................6
2.1.3 Independent USB transceiver supply .........................................6
2.1.4 Battery Backup domain ....................................................6
2.1.5 Voltage regulator.........................................................7
2.1.6 Power supply for I/O analog switches .........................................8
2.2 Power supply schemes..........................................................8
2.3 Power supply sequence between V
DDA
, V
DDUSB
, V
DDIO2
, and V
DD
....................11
2.3.1 Power supply isolation ...................................................11
2.3.2 General requirements ....................................................11
2.3.3 Particular conditions during power-down phase ................................11
2.4 Reset and power-supply supervisor ..............................................12
2.4.1 Brownout reset (BOR)....................................................12
2.4.2 System reset ...........................................................12
2.4.3 Backup domain reset ....................................................13
3 Packages.........................................................................14
3.1 Package summary ............................................................14
3.2 Pinout summary ..............................................................15
4 Clocks............................................................................17
4.1 HSE clock....................................................................17
4.1.1 External crystal/ceramic resonator (HSE crystal) ...............................18
4.1.2 External source (HSE bypass) .............................................18
4.2 HSI16 clock ..................................................................18
4.3 MSI (MSIS and MSIK) clocks ...................................................18
4.4 LSE clock ....................................................................19
5 Boot configuration................................................................20
5.1 Boot mode selection ...........................................................20
AN5373
Contents
AN5373 - Rev 1
page 33/37

ST STM32U585 Series Specifications

General

Brand	ST
Model	STM32U585 Series
Category	Computer Hardware
Language	English