Specifications

Data Sheet ADXL345
Rev. D | Page 7 of 40
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
07925-002
CS
SDA/SDI/SDIO
SDO/ALT ADDRESS
RESERVED
NC
INT2
INT1
V
DD I/O
GND
RESERVED
GND
GND
V
S
13
12
11
10
9
8
1
2
3
4
+x
+y
+z
5
6
14
7
SCL/SCLK
A
DXL345
TOP VIEW
(Not to Scale)
Figure 3. Pin Configuration (Top View)
Table 5. Pin Function Descriptions
Pin No. Mnemonic Description
1 V
DD I/O
Digital Interface Supply Voltage.
2 GND This pin must be connected to ground.
3 RESERVED Reserved. This pin must be connected to V
S
or left open.
4 GND This pin must be connected to ground.
5 GND This pin must be connected to ground.
6 V
S
Supply Voltage.
7
CS
Chip Select.
8 INT1 Interrupt 1 Output.
9 INT2 Interrupt 2 Output.
10 NC Not Internally Connected.
11 RESERVED Reserved. This pin must be connected to ground or left open.
12 SDO/ALT ADDRESS Serial Data Output (SPI 4-Wire)/Alternate I
2
C Address Select (I
2
C).
13 SDA/SDI/SDIO Serial Data (I
2
C)/Serial Data Input (SPI 4-Wire)/Serial Data Input and Output (SPI 3-Wire).
14 SCL/SCLK Serial Communications Clock. SCL is the clock for I
2
C, and SCLK is the clock for SPI.