STM32F051R4T7TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM32F051R4T7TR

ARM®-based 32-bit MCU, 16 to 64 KB Flash, 11 timers, ADC, DAC and communication interfaces, 2.0-3.6 V

STMicroelectronics 

STM32F051x4 STM32F051x6 STM32F051x8

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

S

Supply pin

Pin type

I

Input-only pin

I/O

Input / output pin

FT

5 V-tolerant I/O

FTf

5 V-tolerant I/O, FM+ capable

I/O structure

TTa

3.3 V-tolerant I/O directly connected to ADC

TC

Standard 3.3 V I/O

B

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.

Pin

functions

Alternate

functions

Functions selected through GPIOx_AFR registers

Additional

functions

Functions directly selected/enabled through peripheral registers

Pin number

Table 13. Pin definitions

Pin functions

Pin name

(function upon

reset)

Alternate functions

Additional

functions

1 B2 1 - - -

2 A2 2 A6 - -

VBAT

PC13

S-

-

I/O TC (1)(2)

3 A1 3 B6 -

4 B1 4 C6 -

5 C1 5 B5 2

6 D1 6 C5 3

-

PC14-OSC32_IN

(PC14)

I/O

TC

(1)(2)

-

PC15-OSC32_OUT

(PC15)

I/O

TC

(1)(2)

2

PF0-OSC_IN

(PF0)

I/O FT

-

3

PF1-OSC_OUT

(PF1)

I/O FT

-

DocID022265 Rev 7

Backup power supply

RTC_TAMP1,

-

RTC_TS,

RTC_OUT,

WKUP2

-

OSC32_IN

-

OSC32_OUT

-

OSC_IN

-

OSC_OUT

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