BLUENRG-LP datasheet(26/72 Pages) STMICROELECTRONICS

26 / 72 page

Pin number

Pin name

(function

after reset)

type

I/O

structure

Alternate functions

Additional functions

QFN48

QFN32

WLCSP49

PB15

I/O

I2C1_SMBA,

TX_SEQUENCE, MCO,

TIM1_CH4N, TIM1_CH6,

USART_TX

PB14

I/O

FT_a

SPI1_MOSI, I2C2_SDA,

TIM1_ETR, TIM1_CH3N,

TIM1_CH5, USART_RX

VIN_PVD

PB13

I/O

SPI1_MISO, I2C2_SCL,

PDM_CLK, TIM1_BKIN2,

TIM1_CH4

SXTAL1

PB12

I/O

SPI1_SCK, LCO,

PDM_DATA, TIM1_BKIN,

TIM1_CH3

SXTAL0

VCAP

1.2 Vdigital core

VFBSD

SMPS output

VSSSD

SMPS Ground

VLXSD

SMPS input/output

VDDSD

1.7-3.6 battery voltage

input

VDD3

1.7-3.6 battery voltage

input

RSTN

I/O

RST

Reset pin

VDD1

1.7-3.6 battery voltage

input

VDDA

1.2 V analog ADC core

PB11

I/O

SPI1_SCK, SPI2_NSS,

I2C1_SCL, TIM1_CH1,

TIM1_CH4N, I2S2_WS

Wakeup

PB10

I/O

SPI1_NSS, SPI2_SCK,

I2C1_SDA, TIM1_CH2,

TIM1_CH3N, I2S2_SCK

Wakeup

PB9

I/O

USART_TX,

LPUART_CTS, SPI2_MCK,

TIM1_CH1N, TIM1_CH2N,

I2S2_MCK

Wakeup

PB8

I/O

USART_CK, LPUART_RX,

TIM1_CH4, TIM1_CH1N

Wakeup

PB7

I/O

FT_f

I2C2_SDA, SPI2_SCK,

LPUART_RX, TIM1_CH2,

I2S2_SCK

Wakeup

PB6

I/O

FT_f

I2C2_SCL, SPI2_NSS,

LPUART_TX, TIM1_CH1,

I2S2_WS

Wakeup

PB5

I/O

LPUART_RX, SPI2_MOSI,

PDM_CLK, I2S2_SD

PGA_VBIAS_MIC(1),

wakeup

PB4

I/O

LPUART_TX, SPI2_MISO,

PDM_DATA, I2S2_MISO

PGA_VIN, wakeup

VSSA

Ground analog ADC

core

BlueNRG-LP

Pinouts and pin description

DS13282 - Rev 2

page 26/72

BLUENRG-LP Datasheet(PDF) 26 Page - STMicroelectronics

BLUENRG-LP Datasheet(HTML) 26 Page - STMicroelectronics

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