STM8S103F3P3 datasheet(22/113 Pages) STMICROELECTRONICS

22 / 113 page

Alternate

function

after remap

[option bit]

Default

alternate

function

Main

function

(after reset)

Output

Input

Type

name

no.

Speed

High

sink

(1)

Ext.

interrupt

wpu

floating

Timer 2 -

channel 2/ADC

external trigger

Port D3

I/O

PD3/

TIM2_CH2/

ADC_ETR

Timer 2 -

channel

1/BEEP output

Port D4

I/O

PD4/BEEP/

TIM2_CH1

UART1 data

transmit

Port D5

I/O

PD5/

UART1_TX

UART1 data

receive

Port D6

I/O

PD6/

UART1_RX

Timer 1 -

channel 4

[AFR6]

Top level

interrupt

Port D7

I/O

PD7/ TLI

[TIM1_CH4]

(1)

I/O pins used simultaneously for high current source/sink must be uniformly spaced around the package. In addition, the total

driven current must respect the absolute maximum ratings (see Electrical characteristics).

(2)

When the MCU is in Halt/Active-halt mode, PA1 is automatically configured in input weak pull up and cannot be used for waking

up the device. In this mode, the output state of PA1 is not driven. It is recommended to use PA1 only in input mode if Halt/Active-halt

is used in the application.

(3)

In the open-drain output column, "T" defines a true open-drain I/O (P-buffer and protection diode to VDD are not implemented)

(4)

The PD1 pin is in input pull-up during the reset phase and after internal reset release.

STM8S103Fx TSSOP20/SO20/UFQFPN20 pinout and pin

description

5.2

STM8S103Fx TSSOP20/SO20 pinout

5.2.1

Figure 4: STM8S103Fx TSSOP20/SO20 pinout

UART1_CK/TIM2_CH1/BEEP/(HS)PD4

NRST

VDD

VCAP

VSS

OSCOUT/PA2

PD3 (HS)/AIN4/TIM2_CH2/ADC_ETR

PD1(HS)/SWIM

PB4 (T)/I

C_SCL [ADC_ETR]

PC3 (HS)/TIM1_CH3 [TLI] [TIM1_CH1N]

PC4

(HS)/TIM1_CH4/CLK_CCO/AIN2/[TIM1_CH2N]

PC5 (HS)/SPI_SCK [TIM2_CH1]

[SPI_NSS] TIM2_CH3/(HS) PA3

PD2 (HS)/AIN3/[TIM2_CH3]

OSCIN/PA1

PB5 (T)/I

C_SDA [TIM1_BKIN]

UART1_TX/AIN5/(HS) PD5

UART1_RX/AIN6/(HS) PD6

PC6 (HS)/SPI_MOSI [TIM1_CH1]

PC7

(HS)/SPI_MISO [TIM1_CH2]

DocID15441 Rev 6

22/113

STM8S103K3 STM8S103F3 STM8S103F2

Pinout and pin description

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