Re: ...thoughts on Retro-uC?

From: Gerrit Heitsch <gerrit_at_laosinh.s.bawue.de>
Date: Thu, 13 Sep 2018 17:15:42 +0200
Message-ID: <6b512694-5f0c-474a-25b5-37a485308696@laosinh.s.bawue.de>
On 09/13/2018 12:02 AM, Mia Magnusson wrote:
> Den Wed, 12 Sep 2018 21:56:06 +0200 skrev didier derny
> <didier@aida.org>:
>> for me it would be like  a sheep with 5 legs...
>>
>> if  I want a 6502 / z80  or 68000 I take a real one....
>>
>> if I want something modern I take an avr, or an arm....
>>
>>
>> I would find replacement for:  6530 /  6560 / 6561 / 6581.... more
>> interesting...
> 
> 6530, 6532, 6526, 6525 and 6523 would be rather simple to implement and
> it might even be possible to do all in one chip, with some preprogram
> thing to choose which of them it should be.

Unfortunatly that's not the case. Those chips are NMOS. With their 
output drivers you can do things (and they were done) that you at least 
shouldn't do with CMOS drivers.

  Gerrit
Received on 2018-09-13 18:02:17

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