Datasheet

DocID025056 Rev 6 9/53
LIS2DH12 Block diagram and pin description
53
Table 2. Pin description
Pin# Name Function
1
SCL
SPC
I
2
C serial clock (SCL)
SPI serial port clock (SPC)
2CS
SPI enable
I
2
C/SPI mode selection:
1: SPI idle mode / I
2
C communication enabled
0: SPI communication mode / I
2
C disabled
3
(1)
1. SDO/SA0 pin is internally pulled up. Refer to Table 3 for the internal pull-up values (typ).
SDO
SA0
SPI serial data output (SDO)
I
2
C less significant bit of the device address (SA0)
4
SDA
SDI
SDO
I
2
C serial data (SDA)
SPI serial data input (SDI)
3-wire interface serial data output (SDO)
5 Res Connect to GND
6 GND 0 V supply
7 GND 0 V supply
8 GND 0 V supply
9 Vdd Power supply
10 Vdd_IO Power supply for I/O pins
11 INT2 Interrupt pin 2
12 INT1 Interrupt pin 1
Table 3. Internal pull-up values (typ.) for SDO/SA0 pin
Vdd_IO
Resistor value for SDO/SA0 pin
Typ. (kΩ)
1.7 V 54.4
1.8 V 49.2
2.5 V 30.4
3.6 V 20.4