Catalogued as a schematic, this 403 KB PDF covers parts named 93AA46, 93LC46 and 93C46 in A, B and C variants, the numbering of a 1 Kbit Microwire serial EEPROM family, so it is best read as a combined datasheet. These tiny chips frequently hold configuration data on Ethernet controllers and monitor boards. Use it for pin functions, supply ranges and the organization setting before reading or writing with a programmer. Save a backup of the existing contents and check the exact suffix on the part.
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 @cyberlanelectonik. Enginerys does not host this file.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.