Description:
The BMA222E 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 BMA222E 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 BMA222E 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 BMA222E senses tilt, motion, inactivity and shock vibration in cell phones, handhelds, computer peripherals, man-machine interfaces, virtual reality features and game controllers.
Application:
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
Features:
Ultra-Small package
LGA package (12 pins), footprint 2mm x 2mm, height 0.95mm
Digital interface
SPI (4-wire, 3-wire), I²C, 2 interrupt pins
VDDIO voltage range: 1.2V to 3.6V
On-chip FIFO
On-chip interrupt controller
Low current consumption, short wake-up time, advanced features for system power management