ADI ADXL343BCCZ-RL7

The ADXL343 is a versatile 3-axis, digital-output, low g MEMS accelerometer. Selectable measurement range and bandwidth, and configurable, built-in motion detection make it suitable for sensing acceleration in a wide variety of applications. Robustness to 10,000g of shock and a wide temperature range (-40℃ to +85℃) enable use of the accelerometer even in harsh environments. The ADXL343 measures acceleration with high resolution (13-bit) measurement at up to ±16g Digital output data is formatted as 16-bit twos complement and is accessible through either an SPI (3- or 4-wire) or I²C digital interface. The ADXL343 can measure the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. Its high resolution (3.9mg/LSB) enables measurement of inclination changes less than 1.0°. Several special sensing functions are provided. Activity and inactivity sensing detect the presence or lack of motion. Tap sensing detects single and double taps in any direction. Free-fall sensing detects if the device is falling. These functions can be mapped individually to either of two interrupt output pins. An integrated memory management system with a 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor activity and lower overall system power consumption. The ADXL343 is supplied in a small, thin, 3mm×5mm×1mm 14-terminal, plastic package.

• Multipurpose accelerometer with 10- to 13-bit resolution for use in a wide variety of applications
• Digital output accessible via SPI (3- and 4-wire) and I²C
• Built-in motion detection features make tap, double-tap, activity, inactivity, and free-fall detection trivial
• User-adjustable thresholds
• Interrupts independently mappable to two interrupt pins
• Low power operation down to 23μA and embedded FIFO for reducing overall system power
• Wide supply voltage range: 2.0V to 3.6V
• I/O voltage 1.7V to VS
• Wide operating temperature range (-40℃ to +85℃)
• 10,000g shock survival
• Small, thin, Pb free, RoHS compliant 3mm×5mm×1mm LGA package

• Handsets
• Gaming and pointing devices
• Hard disk drive (HDD) protection