This part is a kind of semiconductor called PIC18F4523.

Function of this product has (PIC18Fxx23) Enhanced Flash Microcontrollers.

Manufacturers : Microchip Technology

Image and pinout :

Some of the text within the PDF file :

PIC18F2423/2523/4423/4523 Data Sheet 28/40/44-Pin, Enhanced Flash Microcontrollers with 12-Bit A/D and nanoWatt Technology © 2006 Microchip Technology Inc. Preliminary DS39755A Note the following details of the code protection feature on Microchip devices: • • Microchip products meet the specification contained in their particular Microchip Data Sheet. Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specification [ ... ]

PIC18F4523 PDF Datasheet Download