[dorkbotpdx-blabber] Laen's fancy synth chip

[Laen]

It's the YMZ-284 Software Sound Generator.   Great for reliving the
glory days of 8-bit sound.

Datasheet here:
   http://content.laen.org/electronics/YMZ-284.pdf
For sale here:
   http://www.goldmine-elec-products.com/prodinfo.asp?number=A11116

It's nice because it's all microcontroller controllable. You write
some bits, it makes whatever tones you want, with various envelope
shapes.

The only external part you need (besides a microcontrolleer) is a
1-4MHz clock generator, but an ATTiny2313 running at 4MHz with the
CLKOUT fuse bit set is perfect.

-Laen