STM8S903K3 datasheet(28/124 Pages) STMICROELECTRONICS

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Pinouts and pin descriptions

STM8S903K3 STM8S903F3

28/124

DocID15590 Rev 12

24 19

PC2/ TIM1_CH2

[TIM1_CH3N]

I/O

HS O3

X Port C2

Timer 1 -

channel 2

Timer 1 -

inverted channel

3 [AFR1:0]

25 20

PC3/

TIM1_CH3/TLI/

[TIM1_CH1N]

I/O

HS O3

X Port C3

Timer 1 -

channel 3

Top level

interrupt [AFR3]

Timer 1 inverted

channel 1

[AFR7]

26 21

PC4/

TIM1_CH4/

CLK_CCO/AIN2/

[TIM1_CH2N]

I/O

HS O3

X Port C4

Timer 1 -

channel 4

/configurable

clock output

Analog input 2

[AFR2]Timer 1

inverted channel

2 [AFR7]

27 22

PC5/SPI_SCK

[TIM5_CH1]

I/O

HS O3

X Port C5

SPI clock

Timer 5 channel

1 [AFR0]

28 23

PC6/ SPI_MOSI

[TIM1_CH1]

I/O

HS O3

X Port C6

SPI master

out/slave in

Timer 1 channel

1 [AFR0]

29 24

PC7/ SPI_MISO

[TIM1_CH2]

I/O

HS O3

X Port C7

SPI master in/

slave out

Timer 1 channel

2[AFR0]

30 25

PD0/

TIM1_BKIN

[CLK_CCO]

I/O

HS O3

X Port D0

Timer 1 - break

input

Configurable

clock output

[AFR5]

31 26

PD1/ SWIM(4)

I/O

HS O4

X Port D1

SWIM data

interface

32 27

PD2/AIN3/

[TIM5_CH3]

I/O

HS O3

X Port D2

Analog input 3

[AFR2] Timer 5 -

channel 3

[AFR1]

128

PD3/ AIN4/

TIM5_CH2/

ADC_ETR

I/O

HS O3

X Port D3

Analog input 4

Timer 5 -

channel 2/ADC

external trigger

229

PD4/

TIM5_CH1/

BEEP

[UART1_CK]

I/O

HS O3

X Port D4

Timer 5 -

channel 1/BEEP

output

UART clock

[AFR2]

330

PD5/ AIN5/

UART1_TX

I/O

HS O3

X Port D5

Analog input 5/

UART1 data

transmit

Table 6. STM8S903K3 UFQFPN32/LQFP32/SDIP32 pin descriptions (continued)

Pin name

Input

Output

STM8S903K3 Datasheet(PDF) 28 Page - STMicroelectronics

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