STM32F072X8 datasheet(33/128 Pages) STMICROELECTRONICS

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STM32F072x8 STM32F072xB

Pinouts and pin descriptions

Table 12. 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

Supply pin

Input-only pin

I/O

Input / output pin

I/O structure

5 V-tolerant I/O

FTf

5 V-tolerant I/O, FM+ capable

TTa

3.3 V-tolerant I/O directly connected to ADC

Standard 3.3 V I/O

Dedicated BOOT0 pin

RST

Bidirectional reset pin with embedded weak pull-up resistor

Notes

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

reset.

functions

Alternate

functions

Functions selected through GPIOx_AFR registers

Additional

functions

Functions directly selected/enabled through peripheral registers

Table 13. STM32F072x8/xB pin definitions

Pin numbers

Pin name

(function upon

reset)

type

Pin functions

Alternate functions

Additional

functions

PE2

I/O

TSC_G7_IO1,

TIM3_ETR

PE3

I/O

TSC_G7_IO2,

TIM3_CH1

PE4

I/O

TSC_G7_IO3,

TIM3_CH2

PE5

I/O

TSC_G7_IO4,

TIM3_CH3

PE6

I/O

TIM3_CH4

WKUP3,

RTC_TAMP3

B21

1B7

VBAT

Backup power supply

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