Re: has anybody tried to replace a vic or vic II chip with a board containing a propeller ?

From: Gerrit Heitsch <>
Date: Mon, 27 Feb 2012 20:32:33 +0100
Message-ID: <>
On 02/27/2012 08:13 PM, Nate Lawson wrote:
> The remaining problems are:
> * You'd still need an analog stage for both SID and VIC chips, which might take up more of the chip footprint. For example, you'd probably need a few tuned op-amps to do the integration of the SID filter.
> * The final product would probably cost more than people are willing to spend, given that a working C64 is $10-25 on ebay.
> So unless chip replacements can be sold for $50 or more, it's probably not worth doing except as a one-off hobby project.

The only chip I could see a market for would be a drop in replacement 
for the 6526. That one is fully digital and does die quite often since 
it has direct connections to the outside world.

The VIC is still easily available and doesn't fail very often. Same for 
the CPU (6510 or 8500).


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Received on 2012-02-27 20:00:42

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