Any issue powering the NHD-C12864WO-B1TFH#-M from 3.3V?

desm

• February 27, 2018 03:07

Hello,
the datasheet says it can be powered between 2.7V and 3.3V:

https://newhavendisplay.com/content/specs/NHD-C12864WO-B1TFH-M.pdf

The microcontroller is powered from 3.3V, I would like to use a single power source for both.

Since I want to use it in an always-on application, I would like to know if there are potential issues (or something I should be aware of) using 3.3V power, or if 3.0V is recommended and I'll have to use a voltage translator.

Thanks.

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  Ted M.

  NHD Staff

  • February 28, 2018 15:40

  The NHD-C12864WO-B1TFH#-M display can be powered safely by 3.3v so a single power source can be used for your application.

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  Luis Jimenez

  • February 27, 2024 17:55

  Current datasheet for NHD-C12864WO-B1TFH#-M specifies a smaller voltage range from 2.8 to 3.2V while the product page says "it operates at 3.3V supply voltage".

  Is it still safe to operate at 3.3V supply?

  I'm concerned about the datasheet, why was it reducec from 3.3V to 3.2V max? 

  Regards

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  Engineering Support

  Community moderator

  • February 28, 2024 23:02

  Hi Luis,

  Thanks for bringing this to our attention.  Yes, we have tested this display at 3.3V and have not observed any issues.  We are checking internally why the supply voltage was reduced and whether there is any risk with setting it back to 3.3V.  I will provide an update as soon as I can.

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  Engineering Support

  Community moderator

  • March 01, 2024 20:18

  Hi Luis,

  After reviewing internally, we have determined it is safe to operate the NHD-C12864WO-B1TFH#-M display with a 3.3V supply.  We have updated the datasheet accordingly.

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