ARM-based Sensor Hub Embeds Accelerometer

ARM-based Sensor Hub Embeds Accelerometer
Kionix Inc.
March 31, 2014

The KX23H sensor hub integrates a three-axis accelerometer with a 32-bit ARM Cortex-M0 microcontroller(MCU) in a 3 mm x 3 mm x 0.9 mm package. It also includes a library of advanced motion processing software, providing the user with pedometer and caloric counting algorithms, as well as activity monitoring and the ability to detect differences between states such as Stop/Walk/Run/Car/Train etc. In addition, the KX23H includes embedded algorithms for Tap/Double-Tap, screen rotation, tilt and other common applications.

Sensor hub features include:

• Low power : 1µA@standby; 2µA@3.1Hz; 146µA@1.6kHz
• ±2g, 4g, 8g full scale range
• Data Rate 0.781Hz to 1.6KHz
• 16-bit resolution
• Low noise with FlexSet Performance Optimizer
• Embedded 256-byte FIFO/FILO buffer
• Internal voltage regulator
• Embedded wake-up function
• Digital High-Pass Filter Outputs
• Integrated Directional Tap/Double-Tap™ and device-orientation algorithms
• Excellent Temperature Performance
• High Shock Survivability (10,000g)

The KX23H MCU features:

• ARM Cortex™-M0 32MHz
• 128 kB Flash ROM
• 16 kB SRAM
• Power consumption (MCU only):
• 2.5µA (sleep); 6mA @ 32MHz
• I2C master port
• I2C slave port
• 3 GPIO with Interrupt capability

Kionix Inc.
Ithaca, NY


CompanyKionix Inc.
CountryUnited States (USA)


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