PDF datasheet of 196 KB for the SM563 device. No vendor, package or revision appears in the file name, which consists solely of the part number. A document of this size typically includes pin descriptions, electrical characteristics and application notes that a technician uses to verify correct operation in circuit and to locate a compatible replacement. Any PDF reader opens it. The SM563 and SM565 sheets are separate parts, so confirm the marking on the actual component before working from this data.
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_technar_org. 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.