LIS2DUX12TR datasheet(14/102 Pages) STMICROELECTRONICS

14 / 102 page

Application hints

Figure 6. LIS2DUX12 electrical connections (top view)

SDA/SDI/SDO

SCL/SPC

10µF

100nF

GND

SDO/SA0

LIS2DUX12

HOST

I2C /

SPI (3/4-w)

SCL

SDA

Vdd_IO

Rpu

Pull-up to be added

Rpu=10kOhm

I2C configuration

Vdd_IO

100nF

GND

Vdd

RES

GND

MIPI I3CSM /

The device core is supplied through the Vdd line while the I/O pins are supplied through the Vdd_IO line. Power

supply decoupling capacitors (100 nF ceramic, 10 µF aluminum) should be placed as near as possible to pin 9 of

the device (common design practice).

All the voltage and ground supplies must be present at the same time to have proper behavior of the IC (refer to

Figure 6). It is possible to remove Vdd while maintaining Vdd_IO without blocking the communication bus, in this

condition the measurement chain is powered off.

The functionality of the device and the measured acceleration data are selectable and accessible through the

I²C/MIPI I3C® or SPI interfaces. When using the I²C, CS must be tied high (that is, connected to Vdd_IO).

The functions, the threshold and the timing of the two interrupt pins (INT1 and INT2) can be completely

programmed by the user through the I²C/MIPI I3C®/SPI interface.

LIS2DUX12

Application hints

DS14071 - Rev 2

page 14/102

LIS2DUX12TR Datasheet(PDF) 14 Page - STMicroelectronics