6502 CPU schematics

Jim Brain brain at jbrain.com
Fri Mar 7 14:06:22 CST 2008


woodelf wrote:
> davis wrote:
>> <snip>
>>  From what I understand, The 6501 was a 6800 instruction clone that 
>> was sued into history by Motor-ola.
> That was a good thing in hindsight ... it gave them time to add better 
> clock
> generation on the 6502. Looking back, the 6800 clock was as much a 
> pain as
> the 8080A clock, and no IC's at the time to generate the clocks too.( 
> when they
> first came out)
>> Jim
>>
>>
>> .
>>
>
Probably good in more ways than one.  I seem to recall the suit helped 
Jack Tramiel buy the company.  Now, maybe not good from a MOS 
perspective, but CBM's ownership of a chip fab gave the world better 
access to technologies like SID, VIC, etc.  It also drive those prices down.

I can;t remember if Jack got MOS from the suit draining MOS cash so 
much, or if he cancelled a large calc chip order and put MOS in a bind.

Jim

-- 
Jim Brain, Brain Innovations                                      (X)
brain at jbrain.com 
Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times! 
Home: http://www.jbrain.com



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