STM8S003F3 STM8S003K3
Pinouts and pin descriptions
Table 6. STM8S003F3 pin description
Pin
no.
Input
Output
Main
function
(after
Alternate
function
after remap
[option bit]
Default
alternate
function
Pin name
Type
High
OD PP
reset)
sink(1)
Timer 2 -
channel
Port D4 1/BEEP
output/
PD4/ BEEP/
18 TIM2_ CH1/
UART1 _CK
1
I/O
X
X
X
HS
O3
X
X
-
UART1clock
Analog input
Port D5 5/ UART1
datatransmit
PD5/ AIN5/
19
2
3
I/O
I/O
X
X
X
X
X
X
HS
HS
O3
O3
X
X
X
X
-
-
UART1 _TX
Analog input
Port D6 6/ UART1
data receive
PD6/ AIN6/
20
UART1 _RX
4
5
1
2
NRST
I/O
I/O
-
X
-
-
-
-
-
-
Reset
-
-
Resonator/
Port A1
PA1/ OSCIN(2)
X
X
X
O1
X
X
crystal in
Resonator/
Port A2
6
7
8
9
3
4
5
6
PA2/ OSCOUT
VSS
I/O
S
X
-
X
-
X
-
-
-
-
-
O1
X
-
X
-
-
-
-
-
crystal out
-
-
-
Digital ground
1.8 V regulator
capacitor
VCAP
S
-
-
-
-
-
VDD
S
-
-
-
-
-
Digital power supply
SPI master/
slave select
[AFR1]
PA3/ TIM2_ CH3
[SPI_ NSS]
Timer 2
Port A3
7
8
I/O
I/O
X
X
X
-
X
X
HS
-
O3
X
X
-
10
11
channel 3
Timer 1 -
break input
[AFR4]
PB5/ I2C_ SDA
[TIM1_ BKIN]
O1 T(3)
Port B5 I2C data
ADC
external
trigger
[AFR4]
9
PB4/ I2C_ SCL
I/O
I/O
X
X
-
X
X
-
O1 T(3)
-
Port B4
Port C3
I2C clock
12
13
Top level
interrupt
[AFR3]
Timer 1 -
inverted
channel 1
[AFR7]
PC3/ TIM1_CH3
Timer 1 -
channel 3
10 [TLI]
[TIM1_ CH1N]
X
HS
O3
X
X
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