Data Sheet ADXL345 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS ADXL345TOP VIEW(Not to Scale)SCL/SCLKV11413SDA/SDI/SDIODD I/OGND212SDO/ALT ADDRESSRESERVED311RESERVED+xGND410NC+y+zGND59INT2V678INT1S 2 CS 0 -0 5 NOTES 2 9 7 1. NC = NO INTERNAL CONNECTION. 0 Figure 3. Pin Configuration (Top View) Table 5. Pin Function DescriptionsPin No.MnemonicDescription 1 VDD I/O Digital Interface Supply Voltage. 2 GND This pin must be connected to ground. 3 RESERVED Reserved. This pin must be connected to VS or left open. 4 GND This pin must be connected to ground. 5 GND This pin must be connected to ground. 6 VS 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 I2C Address Select (I2C). 13 SDA/SDI/SDIO Serial Data (I2C)/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 I2C, and SCLK is the clock for SPI. Rev. E | Page 7 of 40