Datasheet in PDF form, 805 KB, identified only by a literature code with revision letter C rather than a part number. The SDNS prefix resembles the document numbering Texas Instruments uses, but the name does not reveal which component is covered, so open it to read the device title on the first page. Expect pinout, electrical characteristics, timing and package drawings, which help when checking a replacement or tracing a failed signal. Confirm the marking on the chip matches the part listed before relying on its values.
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.