Filed under SDLS158, this PDF datasheet is 436 KB and names no component in its title. Its code follows the Texas Instruments literature pattern for logic devices, so check the cover for the part number and family variants. A repair technician can pull pin functions, timing figures, operating voltage limits and package outlines from it. Any PDF reader will open the file. Before ordering a replacement, confirm that the package type and suffix printed on the original chip match one listed in the ordering 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.