Re: C64 board ROM chip spacing

From: silverdr_at_wfmh.org.pl
Date: Fri, 3 May 2013 20:51:29 +0200
Message-Id: <09CB7CB3-AF00-4A91-B1B3-785100DEEBA4@wfmh.org.pl>
On 2013-05-02, at 20:22, Jim Brain wrote:

>> .. and 0.9" in the SX. Also on my SX boards (I am not sure if there were other revisions than 251102A) KERNAL is 28 pin (2564) while the other are regular 901225/6 with 24 pins. My guess is that for the quantities of the SX-64 CBM was able to shifting at the price, it didn't pay to make a new ROM chip. 
> Note that you can treat the SX a 2364 24 pin ROM with no ill effects.  The pinout supports both pinouts (2564/2364),

Very valid point! Thanks for reminding. So that Michau does not unnecessarily go for 28 pins when simple change of spacing and _CS switching should do. I am sure he would check himself but .. just in case ;-)

-- 
SD!
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Received on 2013-05-03 19:01:04

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