NXP Semiconductors FXLS8964AF 3-Axis Low-G MEMS Accelerometer

NXP Semiconductors FXLS8964AF 3-Axis Low-G MEMS Accelerometer is optimized for applications that require ultra-low-power wake-up on motion. The FXLS8964AF supports high-performance and low-power operating modes, allowing maximum flexibility to meet the resolution and power needs of various use case implementations. A number of advanced, integrated digital features such as the SDCD block for inertial event detection, auto wake-sleep, 32 sample FIFO/LIFO buffer, and a single wire interface. These features provide overall power savings and simplified host data collection. With AEC-Q100 qualification and an extended temperature range, this device is ideal for automotive keyless-entry (key fob) applications.


The NXP Semiconductors FXLS8964AF Accelerometer is available in a 2.0mm x 2.0mm x 0.95 DFN-10 package with wettable flanks.


  • ±2g/±4g/±8g/±16g user-selectable, full-scale measurement ranges
  • 12-bit acceleration data
  • 8-bit temperature sensor data
  • Low noise: 280µg/√Hz in high-performance mode
  • Low-power capability
    • ≤1μA IDD for ODRs up to 25Hz
    • <4µA IDD for ODRs up to 50Hz
  • Selectable ODRs up to 3200Hz; Flexible Performance mode allows for custom ODRs with programmable decimation (resolution) and idle-time settings
  • 144-byte output data buffer (FIFO/LIFO) capable of storing up to 32 12-bit X/Y/Z data triplets
  • Autonomous orientation detection function (Portrait/Landscape/Up/Down)
  • Flexible Sensor Data Change Detection (SDCD) function for realizing motion or no motion, high-g/low-g, freefall, and other inertial events
  • Dedicated low-power motion-detection mode with one wire interface option
  • 12-bit vector magnitude calculation
  • Trigger input for synchronizing data collection with an external system
  • 0.78Hz to 3200Hz output data rate
  • I2C interface frequencies up to 1MHz; 3- and 4-wire SPI interface with clock frequencies up to 4MHz
  • -40°C to +105°C operating temperature range
  • 2.0mm x 2.0mm x 0.95mm DFN-10 package with wettable flanks; 0.4mm pitch
  • AEC-Q100 qualified for use in automotive applications


  • Automotive security and convenience
  • Key fob motion wake-up


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