This part is a kind of semiconductor called MMA7455.

Function of this product has 3-Axis Accelerometer Module.

Manufacturers : Parallax

Image and pinout :

Some of the text within the PDF file :

Web Site: www.parallax.com Forums: forums.parallax.com Sales: sales@parallax.com Technical: support@parallax.com Office: (916) 624-8333 Fax: (916) 624-8003 Sales: (888) 512-1024 Tech Support: (888) 997-8267 MMA7455 3-Axis Accelerometer Module (#28526) General Description The Freescale Semiconductor MMA7455L 3-Axis Digital Output Accelerometer is a low power, micro-machined sensor capable of measuring acceleration along its X, Y, and Z axes. It offers several convenient integrated features including an analog to digital converter (ADC), digital low-pass filter, and selectable sensitivity ranges of ±2g, ±4g, or ±8g. This device can be easily configured to detect quick motion pulses as single-taps, double-taps, and 0g (free-fall) conditions on any or all axes and provides configurable in [ ... ]

MMA7455 PDF Datasheet Download