Datasheet
Pinout and pin description STM8S105x4/6
28/121 DocID14771 Rev 15
24 22 - - PE6/ AIN9 I/O X XX -O1XXPort E6
Analog
input 9
(3)
-
25 23 17 22 PE5/ SPI_NSS I/O X
X X - O1 X X Port E5
SPI
master/
slave
select
-
26 24 18 23
PC1/
TIM1_CH1/
UART2_CK
I/O X
X X HS O3 X X Port C1
Timer 1 -
channel
1/ UART2
synchron
ous clock
-
27 25 19 24
PC2/
TIM1_CH2
I/O X
X X HS O3 X X Port C2
Timer 1-
channel 2
-
28 26 20 25
PC3/
TIM1_CH3
I/O X
X X HS O3 X X Port C3
Timer 1 -
channel 3
-
29 - 21 26
PC4/
TIM1_CH4
I/O X
X X HS O3 X X Port C4
Timer 1 -
channel 4
-
30 27 22 27 PC5/ SPI_SCK I/O X X HS O3 X X Port C5 SPI clock -
3128- - VSSIO_2 S ------- I/O ground -
3229- - VDDIO_2 S ------- I/O power supply -
33 30 23 28 PC6/ SPI_MOSI I/O X
X X HS O3 X X Port C6
SPI
master
out/slave
in
-
34 31 24 29
PC7/ SPI_
MISO
I/O X
X X HS O3 X X Port C7
SPI
master in/
slave out
-
35 32 - - PG0 I/O X
X - - O1 X X Port G0 - -
36 33 - - PG1 I/O X
X- -O1XXPort G1 - -
37 - - -
PE3/
TIM1_BKIN
I/O X
XX -O1XXPort E3
Timer 1 -
break
input
-
38 34 - - PE2/ I 2C_ SDA I/O X -X-O1
T
(4)
- Port E2 I 2C data -
39 35 - - PE1/ I2C_ SCL I/O X
-X-O1
T
(4)
- Port E1 I 2C clock -
Table 5. STM8S105x4/6 pin description (continued)
Pin number
Pin name Type
Input Output
Main
function
(after
reset)
Default
alternate
function
Alternate
function
after
remap
[option
bit]
LQFP48
LQFP44
LQFP32/UFQFPN32
SDIP32
Floating
wpu
Ext. interrupt
High sink
Speed
OD
PP
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