I'm looking for a circuit for direct driving this LCD ...

[mabauti]

4 Digit passive LCD display with a PIC16f628 (or could be a f84A)


ideas , comments are welcomed

 

[ldanielrosa]

The LCD in question appears to have more pins than the microcontroller, I could not expand the image to get a better look. Unless you are adamant about using this display, I recommend obtaining a hitachi compliant alphanumeric display (onboard driver), this will require fewer I/O pins and less uC code.

 

[mabauti]

Re: I'm looking for a circuit for direct driving this LCD ..

this is the pinout of the LCD

is there a way by adding only a few components like transistors Rs and C's?

 

[kenny_zhou]

Re: I'm looking for a circuit for direct driving this LCD ..

4 Digit passive LCD display with a PIC16f628 (or could be a f84A)


ideas , comments are welcomed

I have been designed a product with a this type LCD,the schematic as below.

Maybe it can give you some help!