David Duffy wrote:

> Have any of the Piclisters done an audio playback unit that uses a Pic
> clocking an EPROM which feeds a parallel style DAC?

> I was thinking along the lines of a 4MBit EPROM & something like a
> DAC0832 DAC.  Maybe an 'F84 could clock some CMOS counters which
> provide the address bits to the EPROM.

  Sounds like the way to go.  A 12C508 comes to mind.  Do you want one
message, or many?  Use a combination of counters (sequential access) and
shift registers (random page access).

> Maybe I could use a PLD instead of the address counters.  That way,
> other features could be built in later like presets, end-of-file
> detect,etc.

  Seems to me you *don't* need speed for this, so a PIC is cheaper,
*much* lower power asn as you mention, easy to get.  You didn't mention
the low power, but I bet you want it!  Easily re-programmable and very
versatile.  Consider 12C508 (small) or 16F84 (*most* convenient to
program, more I/O for {user} interface).
--
  Cheers,
        Paul B.