STM8L151C4T3 datasheet(27/101 Pages) STMICROELECTRONICS

27 / 101 page

STM8L151xx, STM8L152xx

Pin description

Doc ID 15962 Rev 2

27/101

PB6/[SPI1_MOSI](3)/

LCD_SEG16(2)/

ADC1_IN12/COMP1_INP

I/O

X Port B6

[SPI1 master out/slave in]/

LCD segment 16 / ADC1_IN12 /

Comparator 1 positive input

-19 18

PB6/[SPI1_MOSI](3)/

LCD_SEG16(2)/

ADC1_IN12/COMP1_INP/

DAC_OUT

I/O

X Port B6

[SPI1 master out]/

slave in / LCD segment 16 /

ADC1_IN12 / DAC output /

Comparator 1 positive input

31 20 19

PB7/[SPI1_MISO](3)/

LCD_SEG17(2)/

ADC1_IN11/COMP1_INP

I/O

X Port B7

[SPI1 master in- slave out] /

LCD segment 17 / ADC1_IN11 /

Comparator 1 positive input

37 25 21 PC0/I2C1_SDA

I/O FT

XT(4)

Port C0

I2C1 data

38 26 22 PC1/I2C1_SCL

I/O FT

XT(4)

Port C1

I2C1 clock

41 27 23

PC2/[USART1_RX](3)/

LCD_SEG22/ADC1_IN6/

COMP1_INP/VREF_OUT

I/O

X Port C2

[USART1 receive] /

LCD segment 22 / ADC1_IN6 /

Comparator 1 positive input /

Voltage reference output

42 28 24

PC3/[USART1_TX](3)/

LCD_SEG23(2)/

ADC1_IN5/COMP1_INP/

COMP2_INM

I/O

X Port C3

[USART1 transmit] /

LCD segment 23 / ADC1_IN5 /

Comparator 1 positive input /

Comparator 2 negative input

43 29 25

PC4/[USART1_CK](3)/

I2C1_SMB/CCO/

LCD_SEG24(2)/

ADC1_IN4/COMP2_INM/

COMP1_INP

I/O

X Port C4

[USART1 synchronous clock] /

I2C1_SMB / Configurable clock

output / LCD segment 24 /

ADC1_IN4 /

Comparator 2 negative input /

Comparator 1 positive input

44 30 26

PC5/OSC32_IN

/[SPI1_NSS](3)/

[USART1_TX](3)

I/O

X Port C5

LSE oscillator input / [SPI1

master/slave select] / [USART1

transmit]

45 31 27

PC6/OSC32_OUT/

[SPI1_SCK](3)/

[USART1_RX](3)

I/O

X Port C6

LSE oscillator output / [SPI1

clock] / [USART1 receive]

PC7/LCD_SEG25(2)/

ADC1_IN3/COMP2_INM/

COMP1_INP

I/O

X Port C7

LCD segment 25 /ADC1_IN3/

Comparator negative input /

Comparator 1 positive input

Table 4.

STM8L15x pin description (continued)

number

Pin name

Input

Output

Default alternate function

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