Datasheet for the PC1602ERU-ESO-B LCD module in PDF format, a 16x2 character display by the 1602 convention, belonging to an ERU line rather than LRU or LRS. ESO-B marks the specific option build. Expect pin functions, electrical characteristics, backlight data, interface timing and mechanical outline. It helps when probing a faulty display for correct supply and contrast levels and when comparing this series with similar modules, since series letters can change ratings and dimensions.
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.