Datasheet in PDF, 141 KB, carrying the document number 6131 and nothing else in its name, so manufacturer and device are unknown until it is opened. A neighbouring number, 6132, also appears in this index and may cover a related part, but that is only a possibility. Inside, expect pin descriptions, ratings and characteristic data. Use it as a bench reference for measuring supply and signal pins, and always verify the chip marking on the board corresponds to the part named in the document.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @datasheet. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.