Datasheet in PDF format for the Texas Instruments SN74LVT16835DGGR, an 18-bit universal bus driver from the 3.3 V LVT series. It can run in transparent, latched or clocked mode and is often used on memory module and address-bus designs. DGG marks the TSSOP package and R the reel packaging. The 25.7 KB file is a condensed sheet. Use it to identify the latch-enable, clock and output-enable pins while probing, and confirm which operating mode the board uses before you judge the outputs.
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.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.