Base datasheet for the PG8080 family, revision A, a 58.8 KB PDF. The model number most likely describes an 80 by 80 dot monochrome graphic LCD module. As a family-level document, it focuses on data shared across variants, such as pinout, electrical limits and interface timing. It is enough for basic tracing of power and control lines on a non-working display. For backlight type or temperature grade, consult the variant sheet such as the BRS-AYA-B edition and verify the module marking.
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 @acodis_lcd_datasheets_EDID. Enginerys does not host this file.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.