Author Topic: NHD-7.0-800480EF-20 Voltage Levels  (Read 2711 times)

John_Dailey

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NHD-7.0-800480EF-20 Voltage Levels
« on: April 22, 2014, 12:14:07 PM »
I have an NHD-7.0-800480EF-20 Controller board, but the data sheet has a few holes.  I want to use the 20-pin MPU Interface connector, but need to know the following before I inadvertently blow something up:

1) What voltage wants to be present on Pin 3 (the B/L Enable pin)?

2) Is the B/L Enable pin truly an enable, or (as the data sheet seems top imply) is it a power supply input pin?

3) I'm assuming that the Display On signal (Pin 19) is active high.  Does it default to a particular state, or does it need to be actively driven to turn the display on?

Any help is appreciated.

Michael_L

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Re: NHD-7.0-800480EF-20 Voltage Levels
« Reply #1 on: April 22, 2014, 01:14:09 PM »
Both the B/L enable and Display On pins can be left as no connects.  This should free up a couple of valuable I/O lines on your MCU!  :)

John_Dailey

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Re: NHD-7.0-800480EF-20 Voltage Levels
« Reply #2 on: April 23, 2014, 08:16:29 AM »
Thank you.

 

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