The 154 KB file 93CXXXX.pdf is indexed as a schematic, but the wildcard name points to a datasheet covering a range of 93C-series Microwire serial EEPROMs.

Named 93CXX and sized at 132 KB, this PDF is listed as a schematic but appears to be a generic datasheet for 93C-series Microwire serial EEPROMs.