PDF component document of 164 KB for the 23c010 part. Within the common 23C naming scheme this denotes a mask ROM, with 010 typically standing for 1 Mbit, though the name does not confirm the manufacturer. The sheet should cover pinout, memory organisation, control signals and access timing. Technicians consult it to identify the device, check supply and enable lines while tracing a fault, or select a compatible EPROM or flash substitute. Make sure the marking printed on the chip matches this part number first.
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.