Re: DD2 & 3

From: silverdr_at_wfmh.org.pl Date: Wed, 19 Jun 2013 00:08:29 +0200 Message-Id: <4166E288-AC47-4C78-9E42-33F14332D85D@wfmh.org.pl>

On 2013-06-18, at 21:09, Ruud@Baltissen.org wrote:

>> Interesting that they sourced a 6821 instead of just
>> adding a '574/'245 or something simple.
> 
> Just "a '574/'245" means (at least) 40 pins to solder. A 6821 has 
> 40 pins as well plus it has more functions.
> 
> But what makes me wonder, why a 6821 and not a 6522? Price?

I don't remember the prices of the days but I believe that 6821 was noticeably less expensive and produced probably in bigger volumes

-- 
SD!
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