Hi all,

I might be a bit pedantic to post this thread, but please bear with me.

This came up when I was working with 16x2 Displaytech LCDs too.

I have a 16x2 LCD (see attached image). Back plane of the PCB lists the pin-outs:

1-Vss, 2-Vdd, 3-Vo, 4-Rs, 5-R/W, 6-E, 7...14-DB0...DB7, 15-BLA, 16-BLK.
(which I read somewhere is the standard pinout)

The back plane also mentions that the name of the lcd is CM162-4. (No text on the front plane of the PCB).

When i google the name to find the exact datasheet, the only datasheet that pops up is MC 162-4(attached datasheet) which mentions different pin-outs.

1-BLA, 2-BLK, 3-Vss, 4-Vdd, 5-Vo, 6-Rs, 7-R/W, 8-E, 9...16-DB0..DB7

I am guessing MC162 has been misspelled as CM162.

Can anyone explain the difference between the 2 sets of pin-outs??

Thanks

Edwards

 

This LCD apparently has a backlight. BAK and BLK are the connections for the LED(s).

 

Yes. It does.

But what I am wondering is should I follow the pin config on the LCD or the one in the datasheet in the wiring? They are both conflicting with each other. :O

Thanks

 

The pinouts printed on the PC board will be the correct ones to use.

In any case if you want the CM 162-4 data sheet take a look at this link
http://www.google.com.au/url?sa=t&s...1C1vnRdIbbDmbDIhA&sig2=S_sbxd7fdLlrJ9Raqrfetw
The pinouts in the above document match the pinouts printed on the PCB.

 

Ahh... right. My mistake with the CM1624 datasheet.

Thank you very much.

 

CM is correct.
Here is the company that makes that LCD
http://www.szcm-lcd.com/index_En.htm