DocID018789 Rev 4
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UM1079
Extension connectors
37
PB1
ADC_IN9/TIM3_CH
4/
LCD_SEG6/COMP
1_INP/ VREF_OUT
27
-
PB1
-
-
-
-
-
-
-
-
-
PB2/BO
OT1
-
28
-
-
-
-
-
-
-
-
-
21
-
JTDO
TIM2_CH2/PB3/TR
ACESWO/SPI1_S
CK/COMP2_INM/L
CD_SEG7
55
SEG
3
-
-
-
-
SWO
-
-
-
-
11
JNTRST
TIM3_CH1/PB4/SP
I1_MISO/COMP2_I
NP/LCD_SEG8
56
SEG
4
-
-
-
-
-
-
-
-
-
10
PB5
I2C1_SMBAl/TIM3
_CH2/
SPI1_MOSI/COMP
2_INP/ LCD_SEG9
57
SEG
5
-
-
-
-
-
-
-
-
-
9
PB6
I2C1_SCL/TIM4_C
H1/
USART1_TX/LCD_
SEG8
58
-
-
-
-
Blue
-
-
-
-
-
8
PB7
I2C1_SDA/TIM4_C
H2/
USART1_RX/PVD_
IN
59
-
-
-
-
Gre
en
-
-
-
-
-
7
PB8
TIM4_CH3/I2C1_S
CL/
LCD_SEG16/TIM1
0_CH1
61
SEG
13
-
-
-
-
-
-
-
-
-
4
PB9
TIM4_CH4/I2C1_S
DA/
LCD_COM3/TIM11
_CH1
62
COM
3
-
-
-
-
-
-
-
-
-
3
PB10
I2C2_SCL/USART
3_TX/
TIM2_CH3/LCD_S
EG10
29
SEG
6
-
-
-
-
-
-
-
-
22
-
PB11
I2C2_SDA/USART
3_RX/
TIM2_CH4/LCD_S
EG11
30
SEG
7
-
-
-
-
-
-
-
-
23
-
Table 8. MCU pin description versus board function (continued)
MCU pin
Board function
Main
function
Alternate
functions
LQF
P64
pin
num
LCD
glass
Linear
Touch
Sensor
Push
butt
on
I
DD
LED SWD OSC
Free
I/O
Pow
er
supp
ly
P1 P2