This part is a kind of semiconductor called NX700.

Function of this product has Serial Communication Unit.

Manufacturers : Samsung

Image and pinout :

Some of the text within the PDF file :

( DataSheet : ) NX70/NX700 Serial Communications Unit (SCU) User Manual Important User Information Solid state equipment has operational characteristics differing from those of electromechanical equipment. Because of these differences, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable. In no event will Rockwell Samsung Automation be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment. The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associate [ ... ]

NX700 PDF Datasheet Download