MikroElektronika Pedometer 3 Click I2C, SPI

Small footprint: 2 x 2 x 0.9 mm LGA 12-pin package (pin-to-pin compatible with KX122)
User-configurable g-range up to ±8g and Output Data Rate up to 25600Hz
Integrated pedometer (step counter) with overflow, watermark, and increment interrupts
High resolution Wake-Up/Back-to-Sleep functions with threshold configurable down to 3.9 mg
User accessible manufacturer and part ID registers
Integrated Free fall, Directional Tap/Double-TapTM, and Device-orientation Algorithms
Improved ODR accuracy in low power mode over temperature
Factory Programmed Offset and Sensitivity with improved performance over temperature
Extra-large embedded 2048 byte FIFO/FILO buffer continues to record data even when being read
Low Power Consumption with FlexSet™ Performance Optimization
User-selectable Low Power or High Resolution modes
Internal voltage regulator
Digital I2C up to 3.4MHz and Digital SPI up to 10MHz
Excellent temperature performance with high shock survivability
Self-test Function
Digital High-Pass Filter Outputs