Tri-Axis, User Selectable ± 2g, 4g, 8g, Digital (I2C/SPI) Output, Integrated FIFO/FILO buffer, 2x2x0.6mm LGA - KX112-1042

The KX112 is a robust, low-power, I2C/SPI, 3-axis accelerometer with integrated FIFO/FILO buffer that features a wide range of embedded functionality, including tap detection, orientation, activity, and wake-up algorithms. Kionix’s XAC sensor provides outstanding stability with a market-leading combination of improved shock, reflow, and thermal performance. The KX112 also offers accelerometer outputs with up to 16-bit resolution for greater precision. User-selectable parameters include ± 2g, 4g or 8g ranges and Output Data Rates (ODR) with programmable high-pass and low-pass filters. It is packaged in an ultra-small, 12-pin, 2x2x0.6mm LGA plastic package.


  • 2x2x0.6mm LGA
  • User-selectable g Range and Output Data Rate
  • User-selectable 8-bit low resolution or 16-bit high resolution mode
  • Digital High-Pass Filter Outputs
  • Embedded 2048 byte FIFO/FILO buffer
  • Internal voltage regulator to maintain constant internal operating voltages throughout the 1.71 - 3.6V input supply range
  • Low Power Consumption
  • Internal voltage regulator
  • Enhanced integrated Directional Tap/Double-Tap™, and Device-orientation Algorithms
  • User-configurable wake-up function
  • Free fall engine
  • Digital I2C up to 3.4MHz
  • Lead-free Solderability
  • Excellent Temperature Performance
  • High Shock Survivability
  • Factory Programmed Offset and Sensitivity
  • Self-test Function


  • Small Footprint
  • Extra large embedded 2048 byte FIFO/FILO buffer
  • Digital High-Pass Filter Outputs
  • Enhanced integrated Free fall, Directional Tap/Double-Tap™, and Device-orientation Algorithms
  • User-selectable Output Data Rate up to 25600Hz
  • User-configurable wake-up function
  • Excellent Temperature Performance
  • High Shock Survivability

Product Specifications

Axis G Range Sensitivity Noise (µg/√Hz) Resolution Package Size Pins Package Type Interface Output Wakeup Operating Temperature (Min.)[°C] Operating Temperature (Max.)[°C] Supply Voltage [V] Current Consumption
3 2g, 4g, 8g, User-selectable 16384, 8192, 4096 (16-bit), (counts/g) 100 8-bit, 16-bit 2x2x0.6mm 12-pin LGA Digital SPI/I²C Yes -40 85 1.71-3.6 10-145 μA


EVAL-KX112-1042 Cart KX112-1042 Evaluation Board Board Layout
Board Schematic

Developer Tools

Buy Now Description
USBDEVKIT Cart This Kit is composed of a Kionix Evaluation Board on which is soldered a customer-specified 3.3V Kionix accelerometer product, a Silicon Labs C8051F340DK that provides the microprocessor control and USB interface, and a Kionix F340 Adapter Board that provides the link between the Kionix Evaluation Board and the microprocessor.