Texas Instruments datasheet identified by the literature code SDLS108, one of the documents in the range TI uses for legacy 54/74 bipolar logic. The name does not say which IC the 409 KB PDF covers, so check its title page before you rely on it. Typical contents include connection diagrams, function tables, recommended operating conditions and timing figures. Use those to diagnose a failing gate, counter or buffer and to confirm that a substitute from another logic family is electrically compatible.
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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