1.2

Pin description

Figure 2. Pin connections

1

9

8

7

2

3

4

6

5

11

12

10

GND

RES

SCL/SPC

CS

SDO/SA0

SDA/SDI/SDO

(TOPVIEW)

DIRECTION OF THE

DETECTABLE

ACCELERATIONS

Y

1

X

Z

Vdd

(BOTTOM VIEW)

Vdd_IO

Table 1. Pin description

Pin#

Name

Function

1

SCL

SPC

I²C/MIPI I3CSM serial clock (SCL)

SPI serial port clock (SPC)

2(1)

CS

SPI/I²C/MIPI I3CSM mode selection

(1: SPI idle mode / I²C/MIPI I3CSM enabled;

0: SPI enabled / I²C/MIPI I3CSM disabled)

3(1)

SDO

SA0

SPI serial data output (SDO)

I²C less significant bit of the device address (SA0)

4

SDA

SDI

SDO

I²C/MIPI I3CSM serial data (SDA)

SPI serial data input (SDI)

3-wire interface serial data output (SDO)

5

NC

Internally not connected. Can be tied to Vdd, Vdd_IO, or GND.

6

GND

0 V supply

7

RES

Connect to GND

8

GND

0 V supply

9

Vdd

Power supply

10

Vdd_IO

Power supply for I/O pins

11(2)

INT2

Interrupt pin 2. Clock input when selected in single data conversion on demand.

12(2)

INT1

Interrupt pin 1

1. CS and SDO/SA0 pins are internally pulled up. The pull-up of the CS pin can be disconnected by setting bit 2 of register

IF_PU_CTRL (0Ch) to ‘1’. The pull-up of the SDO pin can be disconnected by setting bit 7 of register IF_PU_CTRL (0Ch) to

‘1’.

2. The INT1 and INT2 pins are internally pulled down. The internal pull-down of the INT1 pin can be disconnected by setting

the PD_DIS_INT1 bit in IF_CTRL (0Eh) to ‘1’. The internal pull-down of the INT2 pin can be disconnected by setting the

PD_DIS_INT2 bit in MD2_CFG (20h) to ‘1’.

LIS2DU12

Pin description

DB4522 - Rev 1

page 4/13