Author Topic: different voltages for VDD and IOVDD (NHD-2.4-240320SF-CTXL#-FTN1)  (Read 2937 times)


  • Newbie
  • *
  • Posts: 1
  • Karma: 0
    • View Profile

I am reading the datasheet for NHD-2.4-240320SF-CTXL#-FTN1, and it is not entirely clear that VDD and IOVDD are allowed to be driven by different voltages. I am thinking about driving the LCD (VDD) with 2.8V, while driving the logic (IOVDD) with 3.3V, to simplify the interface with the rest of the board, which is driven by 3.3V. Would this be a good or a bad idea?

Best Regards,


  • Administrator
  • Hero Member
  • *****
  • Posts: 357
  • Karma: 34
    • View Profile
Re: different voltages for VDD and IOVDD (NHD-2.4-240320SF-CTXL#-FTN1)
« Reply #1 on: June 19, 2014, 09:40:02 AM »
VDD and IOVDD can be tied together and both powered by 3.3V.  If you are trying to simply the interface I would recommend using this method instead.
Although doing what you have described may work, I cannot guarantee reliable operation.


NHD-2.4-240320sf-ctxi#t1 reveresed colors

Started by dfanslerBoard TFTs

Replies: 0
Views: 960
Last post December 21, 2016, 09:49:01 AM
by dfansler
Getting started with NHD-2.4-240320SF-CTXI#-FT1

Started by seanBoard TFTs

Replies: 26
Views: 13990
Last post November 06, 2014, 05:12:12 PM
by brybot
NHD-2.4-240320SF-CTXI-F1 3D model

Started by MikhailBoard TFTs

Replies: 1
Views: 1922
Last post March 02, 2016, 04:04:02 PM
by Paul_B
16 bit bus for NHD-2.4-240320SF-CTXI#-FT1

Started by jollyrogerlabsBoard TFTs

Replies: 1
Views: 2472
Last post November 07, 2014, 08:38:31 AM
by Michael_L

Started by bageorge@topnotchcanada.cBoard TFTs

Replies: 1
Views: 2329
Last post May 12, 2015, 02:15:46 PM
by Paul_B