STM32H747AI datasheet(107/252 Pages) STMICROELECTRONICS

部件名	STM32H747AI

功能描述	Dual 32-bit Arm® Cortex®-M7 up to 480MHz and -M4 MCUs, up to 2MB Flash, 1MB RAM, 46 com. and analog interfaces, SMPS, DSI

PDF	252 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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107 / 252 page

DS12930 Rev 1

97/242

STM32H747xI/G

Electrical characteristics

221

6.1.6

Power supply scheme

Figure 13. Power supply scheme

1. N corresponds to the number of VDD pins available on the package.

2. A tolerance of +/- 20% is acceptable on decoupling capacitors.

3. VCAPDSI pin must be externally connected to VDD12DSI pin.

Caution:

Each power supply pair (VDD/VSS, VDDA/VSSA ...) must be decoupled with filtering ceramic

capacitors as shown above. These capacitors must be placed as close as possible to, or

MSv62410V2

BKUP

IOs

VDD domain

Analog domain

Core domain (VCORE)

Backup domain

D3 domain

(System

logic,

EXTI,

Peripherals,

RAM)

D1 domain

(CPU, peripherals,

RAM)

OPAMP,

Comparator

Voltage

regulator

ADC, DAC

Flash

D2 domain

(peripherals,

RAM)

Power switch

VCAP

VSS

VDDLDO

VBAT

VDDA

VREF+

VREF-

VSSA

Backup

regulator

VDD

Backup

RAM

Power switch

HSI, CSI,

HSI48,

HSE, PLLs

IOs

USB

regulator

VDD50USB

VDD33USB

VSS

REF_BUF

VSS

logic

VREF+

USB

IOs

VSS

VSW

LSI, LSE,

RTC, Wakeup

logic, backup

registers,

Reset

logic

VBKP

VBAT

charging

VREF-

VDDA

VBAT

1.2 to 3.6V

VDD

VDDLDO

VREF

VDD33USB

VDD50USB

Step

Down

Coverter

(SMPS)

VDDSMPS

VLXSMPS

VFBSMPS

VSSSMPS

DSI

PHY

DSI

regulator

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