STM8AF528A datasheet(33/110 Pages) STMICROELECTRONICS

33 / 110 page

STM8AF52/62xx, STM8AF51/61xx

Pinouts and pin description

Doc ID 14395 Rev 9

33/110

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]

NRST

I/O

—

Reset

—

PA1/OSCIN(1)

I/O

X—

—

O1X

Port A1

Resonator/

crystal in

—

PA2/OSCOUT

I/O

—

Port A2

Resonator/

crystal out

—

VSSIO_1

—

I/O ground

—

VSS

—

Digital ground

—

VCAP

—

— 1.8 V regulator capacitor

—

VDD

—

Digital power supply

—

VDDIO_1

—

I/O power supply

—

PA3/TIM2_CH3

I/O

—

Port A3

Timer 2 -

channel 3

TIM3_CH1

[AFR1]

10 10

PA4/USART_RX I/O

—

Port A4

USART

receive

—

11 11

PA5/USART_TX I/O

—

Port A5

USART

transmit

—

12 12

PA6/USART_CK I/O

—

Port A6

USART

synchronous

clock

—

---

PH0

I/O

—

HS O3

Port H0

——

---

PH1

I/O

X—

HS O3

Port H1

——

---

PH2

I/O

X—

—

O1X

Port H2

——

---

PH3

I/O

X—

—

O1X

Port H3

——

PF7/AIN15

I/O

X—

—

O1X

Port F7

Analog

input 15

—

PF6/AIN14

I/O

X—

—

O1X

Port F6

Analog

input 14

—

PF5/AIN13

I/O

X—

—

O1X

Port F5

Analog

input 13

—

PF4/AIN12

I/O

X—

—

O1X

Port F4

Analog

input 12

—

PF3/AIN11

I/O

X—

—

O1X

Port F3

Analog

input 11

—

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