This ADXL335 Accelerometer module consists of an ADXL335 Accelerometer IC, Voltage Regulator IC, resistors, and capacitors in an integrated circuit. Different manufacturers use a different voltage regulator IC. Most of the modules use XC6206P332MR (662K) IC.
ADXL335 IC from Analog Devices is the brain of this module. The ADXL335 is a small, thin, low power, complete 3-axis accelerometer with signal conditioned voltage outputs. The product measures acceleration with a minimum full-scale range of ?3 g.
Apart from ADXL335 IC this module also consists of a 3.3V voltage regulator IC.