PDF document of 123 KB titled only 274001, an uninformative numeric name that does not identify the manufacturer or what is covered. It belongs to the same apparent numbered series as 274002 and 272001 and is filed as a schematic, though it may equally be a component datasheet. Check the content before relying on it. When it does match your part, use it for pinout and electrical limits, confirming that the package and marking on the board are identical to those shown 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 @cyberlanelectonik. 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.