Very small PDF of only about 11 KB for the 24C64, a 64 Kbit I2C serial EEPROM; the P suffix likely indicates a PDIP package, and the size suggests a short summary rather than a full datasheet. The 24C64 holds settings and data in TVs, car units, printers and industrial boards. Expect at least pinout and basic ratings. Use it to identify pins when probing SDA, SCL, WP and VCC, and to choose the right chip in a programmer. An image for this part should be 8 KB; back up the original before writing.
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.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.