BLUENRG-MS datasheet(9/42 Pages) STMICROELECTRONICS

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BlueNRG-MS

Pin description

Figure 4: BlueNRG-MS pinout bottom view (WLCSP34)

Table 2: Pinout description

Pins

Name

I/O

Description

QFN32

WLCSP

SPI_MOSI

SPI_CLK

SPI_IRQ

TEST1

I/O

Test pin

VBAT3

VDD

1.7-3.6 battery voltage input

TEST2

I/O

Test pin connected to GND

TEST3

I/O

Test pin connected to GND

TEST4

I/O

Test pin connected to GND

TEST5

I/O

Test pin connected to GND

TEST6

I/O

Test pin connected to GND

TEST7

I/O

Test pin connected to GND

VDD1V8

1.8 V digital core

TEST8

I/O

Test pin not connected

TEST9

I/O

Test pin not connected

TEST11

I/O

Test pin not connected (QFN32)

Test pin connected to GND (WLCSP)

TEST12

I/O

Test pin not connected (QFN32)

Test pin connected to GND (WLCSP)

FXTAL1

16/32 MHz crystal

FXTAL0

16/32 MHz crystal

VBAT2

VDD

1.8-3.6 battery voltage input

RF1

I/O

Antenna + matching circuit

RF0

I/O

Antenna + matching circuit

SXTAL1

32 kHz crystal

SXTAL0

32 kHz crystal

VBAT1

VDD

1.7-3.6 battery voltage input

RESETN

Reset

SMPSFILT1

SMPS output

DocID027103 Rev 6

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