STM32H7B3AI datasheet(228/238 Pages) STMICROELECTRONICS

228 / 238 page

Contents

Introduction .......................................................................4

Description ........................................................................5

Functional overview ..............................................................12

3.1

Arm® Cortex®-M7 with FPU..................................................... 12

3.2

Memory protection unit (MPU)................................................... 12

3.3

Memories .................................................................... 12

3.3.1

Embedded flash memory ................................................. 12

3.3.2

Secure access mode..................................................... 13

3.3.3

Embedded SRAM ....................................................... 13

3.4

Boot modes .................................................................. 14

3.5

Power supply management ..................................................... 14

3.5.1

Power supply scheme .................................................... 14

3.5.2

Power supply supervisor .................................................. 15

3.5.3

Voltage regulator........................................................ 16

3.5.4

SMPS step-down converter................................................ 16

3.6

Low-power modes............................................................. 16

3.7

Reset and clock controller (RCC) ................................................ 17

3.7.1

Clock management ...................................................... 17

3.7.2

System reset sources .................................................... 18

3.8

General-purpose input/outputs (GPIOs)........................................... 18

3.9

Bus-interconnect matrix ........................................................ 19

3.10

DMA controllers............................................................... 20

3.11

Chrom-ART Accelerator (DMA2D) ............................................... 20

3.12

Chrom-GRC™ (GFXMMU) ..................................................... 20

3.13

Nested vectored interrupt controller (NVIC) ........................................ 20

3.14

Extended interrupt and event controller (EXTI) ..................................... 21

3.15

Cyclic redundancy check calculation unit (CRC).................................... 21

3.16

Flexible memory controller (FMC) ................................................ 21

3.17

Octo-SPI memory interface (OCTOSPI)........................................... 21

3.18

Analog-to-digital converters (ADCs) .............................................. 22

3.19

Analog temperature sensor ..................................................... 22

3.20

Digital temperature sensor (DTS) ................................................ 22

3.21

VBAT operation................................................................ 22

3.22

Digital-to-analog converters (DAC) ............................................... 22

STM32H7B3xI

Contents

DS13139 - Rev 8

page 228/238

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