Datasheet

Figure 4: STM8S103Kx SDIP32 pinout
8
1
2
3
4
5
6
7
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
[TIM2_CH2] ADC_ETR/(HS) PD3
BEEP/TIM2_CH1/(HS) PD4
UART1_TX(/HS) PD5
UART1_RX/(HS) PD6
[TIM1_CH4] TLI/(HS) PD7
OSCIN/PA1
OSCOUT/PA2
VSS
VCAP
VDD
[SPI_NSS] TIM2_CH3/(HS) PA3
PB6
PB3 (HS)/TIM1_ETR/AIN3
PB2 (HS)/TIM1_CH3N/AIN2
PB1 (HS)/TIM1_CH2N/AIN1
PB0 (HS)/TIM1_CH1N/AIN0
PE5/SPI_NSS
PC1 (HS)/TIM1_CH1/UART1_CK
PC2( HS)/TIM1_CH2
PC3 (HS)/TIM1_CH3
PC4( HS)/TIM1_CH4/CLK_CCO
PC5 (HS)/SPI_SCK
PC6 (HS)/SPI_MOSI
PC7 (HS)/SPI_MISO
PD0 (HS)/TIM1_BKIN [CLK_CCO]
PD1 (HS)/SWIM
PD2 (HS) [TIM2_CH3]
PB7
I2C_SDA/(T) PB5
NRST
PF4
PB4 (T)/I2C_SCL
1. (HS) high sink capability.
2. (T) True open drain (P-buffer and protection diode to V
DD
not implemented).
3. [ ] alternate function remapping option (if the same alternate function is shown twice, it
indicates an exclusive choice not a duplication of the function).
Table 5: UFQFPN32/LQFP32/SDIP32 pin description
Alternate
function after
remap [option
bit]
Default alternate
function
Main
function
(after
reset)
OutputInput
Type
Pin
name
LQFP/
UFQFP
32
SDIP
32
PPODSpeed
High
sink
(1)
Ext.
interrupt
wpufloating
ResetXI/ONRST16
Resonator/ crystal inPort A1XXO1XXXI/OPA1/
OSCIN
(2)
27
Resonator/ crystal outPort A2XXO1XXXI/OPA2/
OSCOUT
38
Digital groundSV
SS
49
1.8 V regulator capacitorSVCAP510
Digital power supplySV
DD
611
SPI master/
slave select
[AFR1]
Timer 2 channel 3Port A3XXO3HSXXXI/OPA3/
TIM2_CH3
[SPI_NSS]
712
21/117DocID15441 Rev 9
Pinout and pin descriptionSTM8S103K3 STM8S103F3 STM8S103F2