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Customer #146739 on LCD-00710 - Graphic LCD 128x64 STN LED Backlight

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Perhaps the datasheet has changed in the past year, but I see “Logic Supply Voltage”, “Operating Voltage”, and several others listed as 4.5V Min, 5.0V Typ, 5.5V Max.

I can also confirm after owning one, and attempting to interface with a PIC32MX795F512L that it will not function properly on 3.3V logic. Even removing the PIC from the setup and manipulating the I/O lines by hand, I saw improper behavior with 3.3V and proper behavior with 5V.


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