This part is a kind of semiconductor called DFR0009.

Function of this product has LCD Keypad Shield.

Manufacturers : D-Robotics

Image and pinout :

Some of the text within the PDF file :

LCD Keypad Shield (DFR0009) D-Robotics UK (www.droboticsonline.com) This is a very popular LCD Keypad shield for Arduino or Freeduino board D-Robotics 6/25/2011 LCD Keypad Shield 1. Introduction This DFRobot LCD Keypad Shield a very popular shield for Arduino or Freeduino board. The LCD Keypad shield is developed for Arduino compatible boards, to provide a user-friendly interface that allows users to go through the menu, make selections etc. It consists of a 1602 white character blue backlight LCD. The keypad consists of 5 keys select, up, right, down and left. To save the digital IO pins, the keypad interface uses only one ADC channel. The key value is read through a 5 stage voltage divider. 2. Specifications    Operating Voltag [ ... ]

DFR0009 PDF Datasheet Download