The MMA7455L is a Digital Output (I2C/SPI), low power, low profile 
capacitive micromachined accelerometer featuring signal conditioning, a low 
pass filter, temperature compensation, self-test, configurable to detect 0g 
through interrupt pins (INT1 or INT2), and pulse detect for quick motion 
detection. 0g offset and sensitivity are factory set and require no external 
devices. The 0g offset can be customer calibrated using assigned 0g registers 
and g-Select which allows for command selection for 3 acceleration ranges 
(2g/4g/8g). The MMA7455L includes a Standby Mode that makes it ideal for 
handheld battery powered electronics.