STM8L152M8 datasheet(37/134 Pages) STMICROELECTRONICS

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STM8L15xx8, STM8L15xR6

Pin description

20 16

PG2/LCD_SEG30(3)/

USART3_CK

I/O FT(5) X

XX HS X

X Port G2

LCD segment 30/

USART 3 synchronous clock

21 17

PG3/LCD SEG 31 (3)/

[TIM3_ETR]

I/O FT(5) X

XX HS X

X Port G3 LCD segment 31/

[Timer 3 - trigger]

PH4/USART2_RX

I/O FT(5) X

XX HS X

X Port H4 USART2 receive

PH5/USART2_TX

I/O FT(5) X

XX HS X

X Port H5 USART2 transmit

PH6/USART2_CK/

TIM5_CH1

I/O FT(5) X

XX HS X

X Port H6

USART2 synchronous

clock/ Timer 5 - channel 1

PH7/TIM5_CH2

I/O FT(5) X

XX HS X

X Port H7 Timer 5 - channel 2

-9 VSS /VSSA /VREF-

I/O ground / Analog ground voltage /

ADC1 negative voltage reference

13 9

- VSSA /VREF-

Analog ground voltage /

ADC1 negative voltage reference

37 29

- VDD3

IOs supply voltage

38 30

- VSS3

IOs ground voltage

PA0(8)/[USART1_CK](2)/

SWIM/BEEP/IR_TIM (9)

I/O

XHS X

X Port A0

[USART1 synchronous

clock](2)/ SWIM input and

output / Beep output / Infra-

red Timer output

68 56 40 VSS2

IOs ground voltage

67 55 39 VDD2

IOs supply voltage

- VSS4

IOs ground voltage

- VDD4

IOs supply voltage

1. At power-up, the PA1/NRST pin is a reset input pin with pull-up. To be used as a general purpose pin (PA1), it can be

configured only as output push-pull, not as output open-drain nor as a general purpose input. Refer to Section Configuring

NRST/PA1 pin as general purpose output in the STM8L15xx and STM8L16xx reference manual (RM0031).

2. [ ] Alternate function remapping option (if the same alternate function is shown twice, it indicates an exclusive choice not a

duplication of the function).

3. Available on STM8L152xx devices only.

4. A pull-up is applied to PB0 and PB4 during the reset phase. These two pins are input floating after reset release.

Table 5. High density and medium+ density STM8L15x pin description (continued)

number

Pin name

Input

Output

Default alternate function

STM8L152M8 Datasheet(PDF) 37 Page - STMicroelectronics

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