STM32F746VG datasheet(2/227 Pages) STMICROELECTRONICS

Part #	STM32F746VG

Description	Up to 168 I/O ports with interrupt capability

Download	227 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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2 / 227 page

Contents

STM32F745xx STM32F746xx

2/227

DocID027590 Rev 4

Contents

1

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.1

Full compatibility throughout the family . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2

Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.1

ARM® Cortex®-M7 with FPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.2

Memory protection unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3

Embedded Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.4

CRC (cyclic redundancy check) calculation unit . . . . . . . . . . . . . . . . . . . 18

2.5

Embedded SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.6

AXI-AHB bus matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.7

DMA controller (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.8

Flexible memory controller (FMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.9

Quad-SPI memory interface (QUADSPI) . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.10

LCD-TFT controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.11

Chrom-ART Accelerator™ (DMA2D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.12

Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . . . . 22

2.13

External interrupt/event controller (EXTI) . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.14

Clocks and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.15

Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.16

Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.17

Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.17.1

Internal reset ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.17.2

Internal reset OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.18

Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.18.1

Regulator ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.18.2

Regulator OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.18.3

Regulator ON/OFF and internal reset ON/OFF availability . . . . . . . . . . 30

2.19

Real-time clock (RTC), backup SRAM and backup registers . . . . . . . . . . 30

2.20

Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2.21

VBAT operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.22

Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.22.1

Advanced-control timers (TIM1, TIM8) . . . . . . . . . . . . . . . . . . . . . . . . . 34

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