Re: 6820 vs 6821 PIA

["Vince Briel" <vbriel@comcastspamoffmyback.net>]

>
> So I should be able to turn a 6820 into an input/output card without
> too much trouble.

There isn't much documentation on the 6820/21 series PIA's but the best I've
been able to find is that the 21's can put out more load than the older
20's. I've used the 6821's in my replica 1's for over a year now as a
replacement Woz's original design of the 6820 and have had no problems. I've
even tried an older 6820 I came across and they both operate the same.  Hope
this helps.

Vince