STM32L152C6 datasheet(40/131 Pages) STMICROELECTRONICS

40 / 131 page

Pin descriptions

STM32L151x6/8/B, STM32L152x6/8/B

40/131

DocID17659 Rev 9

83 54 B5

PD2

I/O

PD2

TIM3_ETR/LCD_SEG31/LCD_SEG43/

LCD_COM7

PD3

I/O

PD3

USART2_CTS/SPI2_MISO

PD4

I/O

PD4

USART2_RTS/SPI2_MOSI

PD5

I/O

PD5

USART2_TX

PD6

I/O

PD6

USART2_RX

PD7

I/O

PD7

USART2_CK/TIM9_CH2

89 55 A5

PB3

I/O

JTDO

TIM2_CH2/PB3/SPI1_SCK/COMP2_INM/

LCD_SEG7

90 56 A4

PB4

I/O

NJTRST

TIM3_CH1/PB4/SPI1_MISO/COMP2_INP/

LCD_SEG8

91 57 C4

PB5

I/O

PB5

I2C1_SMBA/TIM3_CH2/SPI1_MOSI/

COMP2_INP/LCD_SEG9

92 58 D3

PB6

I/O

PB6

I2C1_SCL/TIM4_CH1/USART1_TX

93 59 C3

PB7

I/O

PB7

I2C1_SDA/TIM4_CH2/USART1_RX/PVD_IN

94 60 B4

BOOT0

95 61 B3

PB8

I/O

PB8

TIM4_CH3/I2C1_SCL/LCD_SEG16/

TIM10_CH1

96 62 A3

PB9

I/O

PB9

TIM4_CH4/I2C1_SDA/LCD_COM3/

TIM11_CH1

PE0

I/O

PE0

TIM4_ETR/LCD_SEG36/TIM10_CH1

PE1

I/O

PE1

LCD_SEG37/TIM11_CH1

99 63 D4

VSS_3

S-

VSS_3

100 64 E4

VDD_3

S-

VDD_3

1. I = input, O = output, S = supply.

2. Function availability depends on the chosen device. For devices having reduced peripheral counts, it is always the lower

number of peripheral that is included. For example, if a device has only one SPI and two USARTs, they will be called SPI1

and USART1 & USART2, respectively. Refer to Table 2 on page 10.

3. Applicable to STM32L152xx devices only. In STM32L151xx devices, this pin should be connected to VDD.

Table 8. STM32L15xxx pin definitions (continued)

Pins

Pin name

Main

function(2)

(after reset)

Alternate functions

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