Hi,

Try Philips TDA8703 or Intersil CA3162.

If you have run out of micro pins / ports, try reviewing your hardware.

You can hook up 8bit A/D to one full port and do the rest of the job with remaining 3 x 8 ports, more than enough.

Or try some other design.

By the way, your posting is H/W, home work and Craig is gonna block it....


But if ask only the hints that OK.

Simon