STM8S103XX Datasheet, PDF (26/56 Pages) STMicroelectronics – Access line, STM8S 8-bit MCU, up to 32 Kbytes Flash, 10-bit ADC, timers, USART, SPI, I²C

Pinouts and pin description
Table 5. Pin description for STM8S105 MCUs (continued)
Pin number
Input
Output
Pin name
STM8S103xx, STM8S105xx
Alternate
Default alternate function after
function
remap
[option bit]
16 15 - PB6/AIN6
17 16 11 PB5/AIN5
18 17 12 PB4/AIN4
19 18 13 PB3/AIN3
20 19 14 PB2/AIN2
21 20 15 PB1/AIN1
22 21 16 PB0/AIN0
23 - - PE7/AIN8
24 22 PE6/AIN9
25 23 17 PE5/SPI_NSS
26
24
18
PC1/TIM1_CC1/
LINUART_CK
27 25 19 PC2/TIM1_CC2
28 26 20 PC3/TIM1_CC3
29 - 21 PC4/TIM1_CC4
30 27 22 PC5/SPI_SCK
31 28
32 29
- V_{SSIO_2}
- V_{DDIO_2}
33 30 23 PC6/SPI_MOSI
34 31 24 PC7/SPI_MISO
35 32 - PG0
36 33 - PG1
37 - - PE3/TIM1_BKIN
38 34 - PE2/I²C_SDA
I/O X X X
I/O X X X
I/O X X X
O1 X X Port B6 Analog input 6
O1 X X Port B5 Analog input 5
O1 X X Port B4 Analog input 4
I²C_SDA
[AFR6]
I²C_SCL
[AFR6]
I/O X X X
O1 X X Port B3 Analog input 3
TIM1_ETR
[AFR5]
I/O X X X
O1 X X Port B2 Analog input
TIM1_NCC3
[AFR5]
I/O X X X
O1 X X Port B1 Analog input 1
TIM1_NCC2
[AFR5]
I/O X X X
O1 X X Port B0 Analog input 0
TIM1_NCC1
[AFR5]
I/O X X X
O1 X X Port E7 Analog input 8
I/O X X X
O1 X X Port E7 Analog input 9
I/O X X X
O1 X
X
Port E5
SPI master/slave
select
Timer 1 - channel 1
I/O X X X HS O3 X X Port C1 / LINUART
synchronous clock
I/O X X X HS O3 X X Port C2 Timer 1- channel 2
I/O X X X HS O3 X X Port C3 Timer 1 - channel 3
I/O X X X HS O3 X X Port C4 Timer 1 - channel 4
I/O X X X
O3 X X Port C5 SPI clock
S
I/O ground
S
I/O power supply
I/O X X X
O3 X
X
Port C6
SPI master out/
slave in
I/O X X X
O3 X
X
Port C7
SPI master in/
slave out
I/O X X
O1 X X Port G0
I/O X X
O1 X X Port G1
I/O X X X
I/O X X X
O1 X
X
Port E3
Timer 1 - break
input
O1 T⁽¹⁾ X Port E2 I²C data
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