[sdiy] Microchip PSG - AY8930

[Ben Lincoln]

Batz Goodfortune wrote:
> Yeah. I saw these too. Couldn't find a data sheet. What's the 
> difference between these and the AY8910? If it's just a beefed up 
> version of the 8910 then it's probably not worth it.
>
A datasheet like this one?

http://www.datasheet4u.com/html/A/Y/8/AY8930_MicrochipTechnology.pdf.html

It does look a lot like the other chips in the series (at least 
superficially?). I got a bunch of AY-3-8913 chips in grab bags from 
Jameco (so 10-15 cents each or thereabouts). I'd like to build a couple 
of little synths around them eventually, but given the simple 
architecture it seems like a lot more effort than some of the 
alternatives. I mostly like the idea of using an actual vintage 80s game 
console-type chip, and I figure it would be good practice doing reads 
and writes from registers, which I've done in assembly but not hardware.

If anyone is interested, but not $5 each interested, I got mine in 
Jameco's small analogue/linear grab bag the first time and many more in 
a large version of the same grab bag a month or two after that.