Bosch BMA253

The BMA253 is a triaxial, low-g acceleration sensor with digital output for consumer applications. It allows measurements of acceleration in three perpendicular axes. An evaluation circuitry (ASIC) converts the output of a micromechanical acceleration-sensing structure (MEMS) that works according to the differential capacitance principle. Package and interfaces of the BMA253 have been defined to match a multitude of hardware requirements. Since the sensor features an ultra-small footprint and a flat package it is ingeniously suited for mobile applications. The BMA253 offers a variable VDDIO voltage range from 1.2V to 3.6V and can be programmed to optimize functionality, performance and power consumption in customer specific applications. In addition it features an on-chip interrupt controller enabling motion-based applications without use of a microcontroller. The BMA253 senses tilt, motion, inactivity and shock vibration in cell phones, handhelds, computer peripherals, man-machine interfaces, virtual reality features and game controllers.

• Ultra-Small package - Digital interface - Programmable functionality - On-chip FIFO - On-chip interrupt controller
• LGA package (12 pins), footprint 2mm x 2mm, height 0.95mm
• SPI (4-wire, 3-wire), I2C, 2 interrupt pins
• VDDIO voltage range: 1.2V to 3.6V
• Acceleration ranges ±2g / ±4g / ±8g / ±16g
• Low-pass filter bandwidths 1kHz - <8Hz
• Integrated FIFO with a depth of 32 frames
• Motion-triggered interrupt-signal generation for
  • new data
  • any-motion (slope) detection
  • tap sensing (single tap / double tap)
  • orientation recognition
  • flat detection
  • low-g/high-g detection
  • no-motion / inactivity detection
• Ultra-low power - Temperature sensor - RoHS compliant, halogen-free
• Low current consumption, short wake-up time, advanced features for system power management

• Display profile switching
• Menu scrolling, tap / double tap sensing
• Gaming
• Pedometer / step counting
• Free-fall detection
• E-compass tilt compensation
• Drop detection for warranty logging
• Advanced system power management for mobile applications