STM8AF528ATAY datasheet(34/114 Pages) STMICROELECTRONICS

34 / 114 page

Pinouts and pin description

STM8AF52/62xx, STM8AF51/61xx

34/114

DocID14395 Rev 10

Table 13. STM8A microcontroller family pin description

Pin number

Pin name

Input

Output

Main

function

(after

reset)

Default

alternate

function

Alternate

function

after remap

[option bit]

11111

NRST

I/O

—

Reset

—

22222

PA1/OSCIN(1)

I/O X

X—

— O1

Port A1

Resonator/

crystal in

—

33333

PA2/OSCOUT

I/O X

— O1

Port A2

Resonator/

crystal out

—

444

VSSIO_1

— —

—

I/O ground

—

55544

VSS

— —

—

Digital ground

—

66655

VCAP

— —

—

1.8 V regulator

capacitor

—

77766

VDD

— —

—

— Digital power supply

—

88877

VDDIO_1

— —

—

I/O power supply

—

PA3/TIM2_CH3 I/O X

— O1

Port A3

Timer 2 -

channel 3

TIM3_CH1

[AFR1]

10 10 10

PA4/USART_RX I/O X

— O3

Port A4

USART

receive

—

11 11 11

PA5/USART_TX I/O X

— O3

Port A5

USART

transmit

—

12 12 12

8 PA6/USART_CK I/O X

— O3

Port A6

USART

synchro

nous clock

—

PH0

I/O X

— HS O3

Port H0

——

PH1

I/O X

— HS O3

Port H1

——

PH2

I/O X

X—

— O1

Port H2

——

PH3

I/O X

X—

— O1

Port H3

——

17 13

PF7/AIN15

I/O X

X—

— O1

Port F7

Analog

input 15

—

18 14

PF6/AIN14

I/O X

X—

— O1

Port F6

Analog

input 14

—

19 15

PF5/AIN13

I/O X

X—

— O1

Port F5

Analog

input 13

—

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