ADXL343 - Triple-Axis Accelerometer (+-2g/4g/8g/16g) w/ I2C/SPI

Analog Devices ADXL343 triple-axis accelerometer with selectable ±2/4/8/16g range, I2C and SPI interfaces. Near-drop-in replacement for the ADXL345.

Logical pinout · physical placement not verified

One grouped source record is expanded into separate logical pads where unambiguous; physical placement is not implied.

VINPower pins
Input to 3.3V regulator and logic-level reference.
Type · Power
3V3Power pins
3.3V regulator output.
Type · Power
GNDPower pins
Common ground connection.
Type · Ground
SCLI2C pins
I2C clock line.
Type · I2C
SDAI2C pins
I2C data line.
Type · I2C
SCKSCLSPI pins
SPI clock when used in SPI mode.
Type · I2C, SPI
SDISDASPI pins
SPI MOSI when used in SPI mode.
Type · I2C, SPI
SDOALT ADDROther pins
SPI MISO, also I2C alternate address select.
Type · SPI
CSSPI pins
SPI chip select.
Type · SPI
INT1Interrupt pins
Interrupt output 1.
Type · GPIO
INT2Interrupt pins
Interrupt output 2.
Type · GPIO

Pin	Position	Type	Function
VIN	Power pins	Power	Input to 3.3V regulator and logic-level reference.
3V3	Power pins	Power	3.3V regulator output.
GND	Power pins	Ground	Common ground connection.
SCL	I2C pins	I2C	I2C clock line.
SDA	I2C pins	I2C	I2C data line.
SCKSCL	SPI pins	I2C, SPI	SPI clock when used in SPI mode.
SDISDA	SPI pins	I2C, SPI	SPI MOSI when used in SPI mode.
SDOALT ADDR	Other pins	SPI	SPI MISO, also I2C alternate address select.
CS	SPI pins	SPI	SPI chip select.
INT1	Interrupt pins	GPIO	Interrupt output 1.
INT2	Interrupt pins	GPIO	Interrupt output 2.

Logical pinout · physical placement not verified

One grouped source record is expanded into separate logical pads where unambiguous; physical placement is not implied.

Pin details

11 connections

VIN
Input to 3.3V regulator and logic-level reference.
Power
Power pins
3V3
3.3V regulator output.
Power
Power pins
GND
Common ground connection.
Ground
Power pins
SCL
I2C clock line.
I2C
I2C pins
SDA
I2C data line.
I2C
I2C pins
SCKSCL
SPI clock when used in SPI mode.
I2C, SPI
SPI pins
SDISDA
SPI MOSI when used in SPI mode.
I2C, SPI
SPI pins
SDOALT ADDR
SPI MISO, also I2C alternate address select.
SPI
Other pins
CS
SPI chip select.
SPI
SPI pins
INT1
Interrupt output 1.
GPIO
Interrupt pins
INT2
Interrupt output 2.
GPIO
Interrupt pins

Start wiring

I2C · SPI · Analog · 3.3 – 5 V · Breakout

Confirm the data interface matches your host board.

Module pins: VIN, 3V3, GND, SCL, SDA, SCK/SCL, SDI/SDA, SDO/ALT ADDR. Schematik maps them to your board in the app.

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