STM32H7 datasheet(32/357 Pages) STMICROELECTRONICS

Part #	STM32H7

Description	32-bit Arm® Cortex®-M7 480MHz MCUs, up to 2MB flash, up to 1MB RAM, 46 com. and analog interfaces

PDF	357 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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32 / 357 page

Functional overview

STM32H742xI/G STM32H743xI/G

32/357

DS12110 Rev 10

3.8

General-purpose input/outputs (GPIOs)

Each of the GPIO pins can be configured by software as output (push-pull or open-drain,

with or without pull-up or pull-down), as input (floating, with or without pull-up or pull-down)

or as peripheral alternate function. Most of the GPIO pins are shared with digital or analog

alternate functions. All GPIOs are high-current-capable and have speed selection to better

manage internal noise, power consumption and electromagnetic emission.

After reset, all GPIOs (except debug pins) are in Analog mode to reduce power

consumption (refer to GPIOs register reset values in the device reference manual).

The I/O configuration can be locked if needed by following a specific sequence in order to

avoid spurious writing to the I/Os registers.

3.9

Bus-interconnect matrix

The devices feature an AXI bus matrix, two AHB bus matrices and bus bridges that allow

interconnecting bus masters with bus slaves (see Figure 4).

Figure 4 shows STM32H743xI/G bus matrix. All peripherals may not be available for

STM32H742xI/G (refer to Table 2: STM32H742xI/G and STM32H743xI/G features and

peripheral counts).

STM32H7 Datasheet(PDF) 32 Page - STMicroelectronics