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STM32H743xI Pin descriptions

Table 7. Legend/abbreviations used in the pinout table

Name Abbreviation Definition

Pin name

Unless otherwise specified in brackets below the pin name, the pin function during

and after reset is the same as the actual pin name

Pin type

S Supply pin

I Input only pin

I/O Input / output pin

ANA Analog-only Input

I/O structure

FT 5 V tolerant I/O

TT 3.3 V tolerant I/O

B Dedicated BOOT0 pin

RST Bidirectional reset pin with embedded weak pull-up resistor

Option for TT and FT I/Os

_f I2C FM+ option

_a analog option (supplied by V

DDA

)

_u USB option (supplied by V

DD33USB

)

_h High Speed Low Voltage

Notes

Unless otherwise specified by a note, all I/Os are set as floating inputs during and

after reset.

Pin functions

Alternate

functions

Functions selected through GPIOx_AFR registers

Additional

functions

Functions directly selected/enabled through peripheral registers

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