STM8S105K6U3C View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STM8S105K6U3C
STMicroelectronics
STM8S105K6U3C Datasheet PDF : 127 Pages
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STM8S105xx
Pinout and pin description
Figure 6: SDIP 32-pin pinout
ADC_ETR/TIM2_CH2/PD3(HS) 1
[BEEP]TIM2_CH1/PD4(HS) 2
UART2_TX/PD5 3
UART2_RX/PD6 4
(TIM1_CH4)TLI/PD7 5
NRST 6
OSCIN/PA1 7
OSCOUT/PA2 8
VSS 9
VCAP 10
VDD 11
VDDIO 12
AIN12/PF4 13
VDDA 14
VSSA 15
[I2C_SDA]AIN5/PB5 16
32 PD2(HS)/TIM3_CH1[TIM2_CH3]
31 PD1(HS)/SWIM
30 PD0(HS)/TIM3_CH2[TIM1_BKIN][CLK_CCO]
29 PC7(HS)/SPI_MISO
28 PC6(HS)/SPI_MOSI
27 PC5(HS)/SPI_SCK
26 PC4(HS)/TIM1_CH4
25 PC3(HS)/TIM1_CH3
24 PC2(HS)/TIM1_CH2
23 PC1(HS)/TIM1_CH1/UART2_CK
22 PE5/SPI_NSS
21 PB0/AIN0[TIM1_CH1N]
20 PB1/AIN1[TIM1_CH2N]
19 PB2/AIN2[TIM1_CH3N]
18 PB3/AIN3[TIM1_ETR]
17 PB4/AIN4[I2C_SCL]
105_ai15057
1. (HS) high sink capability.
2. (T) True open drain (P-buffer and protection diode to VDD 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 6: Pin description for STM8S105 microcontrollers
Pin number
Pin
name
LQFP48 LQFP44 LQFP32/ SDIP32
VFQFPN32/
UFQFPN32
Type Input
Output
Main function Default alternate Alternate
(after reset) function
function after
floating wpu Ext.
High Speed OD PP
interrupt sink
remap
[option bit]
1
1
1
6
NRST I/O
X
Reset
2
2
2
7
PA1/ I/O X
X
OSC
IN
O1 X X Port A1
Resonator/
crystal in
3
3
3
8
PA2/ I/O X
X
X
OSC
OUT
O1 X X Port A2
Resonator/
crystal out
4
4
-
-
VSSIO_1 S
I/O ground
5
5
4
9
VSS
S
Digital ground
6
6
5
10
VCAP S
1.8 V regulator capacitor
7
7
6
11
VDD
S
Digital power supply
8
8
7
12
VDDIO_1 S
I/O power supply
DocID14771 Rev 9
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