This part is a kind of semiconductor called FX2N.
Function of this product has Programmable Logic Controllers Beginners Manual.
Manufacturers : Mitsubishi
Image and pinout :

Some of the text within the PDF file :
MITSUBISHI ELECTRIC MELSEC FX Family Programmable Logic Controllers Beginners Manual FX1S, FX1N, FX2N, FX2NC, FX3U Art. no.: 166388 26042006 Version A MITSUBISHI ELECTRIC INDUSTRIAL AUTOMATION The texts, illustration, diagrams and examples in this manual are provided for information purposes only. They are intended as aids to help explain the installation, operation, programming and use of the programmable logic controllers of the MELSEC FX1S, FX1N, FX2N,FX2NC and FX3U series. If you have any questions about the installation and operation of any of the products described in this manual please contact your local sales office or distributor (see inside back cover). You can find the latest information and answers to frequently asked questions on our website at www.mitsubishi-automation.co [ ... ]
FX2N PDF Datasheet Download
