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Kionix Productdetail


Tri-Axis, User Selectable 2g, 4g, 8g, Digital (I²C) Output, 3x3x0.9mm LGA - KXTF9-2050

The KXTF9 is a very popular high-performance, low-power, tri-axis digital I²C accelerometer with integrated orientation, Directional tap/double-tap, activity monitoring and motion-detection algorithms. The KXTF9 offers user-selectable ranges of ±2g, ±4g or ±8g as well as 8-bit and 12-bit resolution. The KXTF9 is delivered in a 3 x 3 x 0.9 mm, 10-pin, LGA package with an operating temperature range of -40°C to +85°C. The KXTF9 operates from a 1.8 V to 3.6 V DC supply (factory-programmable).

Not Recommended for New Designs.


  • 8-bit and 12-bit resolution
  • ±2g, ±4g or ±8g user-selectable ranges
  • Current consumption: 0.1 µA in standby, 290 µA at low resolution, 700 µA at high resolution
  • Supply voltage range: 1.8 V to 3.6 V
  • I2C digital communication interface
  • Embedded features
  • Directional Tap/Double-TapTM
  • Motion detection
  • User-configurable wake-up function
  • Orientation detection: report changes in face up, face down, +/- vertical and +/- horizontal orientation
  • Programmable interrupt pin
  • Self-test function
  • RoHS compliant


  • Very popular digital part
  • Embedded algorithms for Gesture Recognition and Directional Tap/Double Tap™

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 64, 32, 16 (8-bit), 1024, 512, 256 (12-bit), (counts/g) - 8-bit, 12-bit 3x3x0.9mm 10-pin LGA Digital (I²C) Yes -40 85 3 230-570 μA


EVAL-KXTF9-2050 Cart KXTF9-2050 Evaluation Board Board Schematic
Board Layout

Developer Tools

Buy Now Description
IoT Evaluation and Development Kit Cart Kionix's IoT evaluation kit utilizes hardware platform based on Nordic Semiconductor's Bluetooth LE SoC. The compact (27/32mm x 4.2mm), highly integrated modular sensor system integrates Kionix's accelerometer (KX122-1037), combo accel-mag (KMX62-1031), and combo accel-gyro (KXG07) sensors along with ROHM's barometric pressure sensor (BM1383AGLV). Additional sensors can be evaluated using the add-on board that can fit inside the kit. This enables measurement of 3D acceleration, 3D magnetism, 3D rotation, air pressure, and temperature, making it ideal for training, prototyping, and initial set development of IoT and wearable applications.