im already using a cd4543 on my board i have used before for led display but i changed to lcds .it s not giving me any problem till now i been using it for two weeks but maybe later it will, so thx to mr_ghz i rewied the cmos4000 familly and found out that this same chip can be used for lcds , but we should apply a square wave form on the ph pin (pin 5). so thx mr_ghz
and guys im still looking for a single chip that controls more than one digit and that can be controlled from a databus (not serial)
thx in advance[/quo
another kind of chip for same uses is 4556 if you have to drive more display you can used a multiplixer chip 4553, see cmos data sheet for information
if you want to use a singal chip then intersil (ICL) have these kind of chip up to 4 1/2 half digit driver