This should work for LM238XB:
I have also been asked how to connect LM213XB which is a 256x64 pixel model with HD61830. I noticed it has same pinout with similar negative voltage requirements so the same wiring can be used for LM213XB also.
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| LM238XB LCD with Hitachi HD61830 controller !! http://forum.lcdinfo.com/viewtopic.php?f=6&t=428 |
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| Author: | knomic [ Sun Nov 30, 2003 20:24 ] |
| Post subject: | LM238XB LCD with Hitachi HD61830 controller !! |
i search a wiringplan for this display, how i have to connect it to the lpt !! maybe someone can help me, here is the data-sheet from the lcd: http://www.sudankaefer.net/lm283xb.pdf and here the datasheet of the controller: http://www.sudankaefer.net/HD61830.pdf thx4help !! knomic |
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| Author: | Henri [ Sun Nov 30, 2003 22:14 ] |
| Post subject: | |
This should work for LM238XB:
I have also been asked how to connect LM213XB which is a 256x64 pixel model with HD61830. I noticed it has same pinout with similar negative voltage requirements so the same wiring can be used for LM213XB also. |
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| Author: | knomic [ Mon Feb 16, 2004 11:29 ] |
| Post subject: | |
where i get the -13,5V from ? how can i transform 12V to 13.5V or can i use 12V instead of 13.5V too ? thx for help !! knomic |
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| Author: | whypick1 [ Mon Feb 16, 2004 21:21 ] |
| Post subject: | |
You're going to need a negative voltage generator. It looks like you can't use the -12v lead from your power supply, as the datasheet says Vee needs to be between -13.25v and -13.75v in reference to ground. Not sure where you can get a negative voltage generator (might also be called a DC-DC converter) in Germany, but I'm sure someone else here who lives in Europe knows where to get one. |
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| Author: | Henri [ Fri Feb 20, 2004 20:00 ] |
| Post subject: | |
I know some german electronics shop with a website sells DC-DC converters (up to -24v if I remember correctly) as I've seen it but I can't remember which one it was. Maybe if you post some links here I might remember which one it was ? |
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| Author: | knomic [ Sat Feb 21, 2004 12:36 ] |
| Post subject: | |
i only know www.conrad.de www.reichelt.de www.pollin.de !! i found a tutorial to build up a step-up-controller an then i can include a voltage-inverter !! maybe i can find a better solution, because thsi one is a little bit to big !! knomic |
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| Author: | Henri [ Sun Feb 22, 2004 23:38 ] |
| Post subject: | |
www.reichelt.de looked familiar. I think it might have been there where I saw the DC/DC converters. |
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