PG12864LRF-YRA-H graphic display module datasheet, provided as a 249 KB PDF. The base number indicates a 128 by 64 dot matrix, and the LRF and YRA-H codes define the exact build, which the ordering section of the document should decode. Technicians reference it for connector pin functions, logic and drive voltages, backlight current limits and the mechanical outline. There is a closely related Y1 variant documented separately, so confirm the full marking on the module before using these values.
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