Re: 4168 "XRAM" in place of 4364 SRAM

From: silverdr_at_wfmh.org.pl
Date: Sat, 29 Jun 2013 23:24:01 +0200
Message-Id: <C201C04F-2853-4941-997E-F11A4D895FAD@wfmh.org.pl>
On 2013-06-29, at 18:18, Gerrit Heitsch wrote:

>>> If I was using it in a VIC-20 as RAM
>>> expansion, then I would connect it to PHI2, knowing that nothing
>>> will access it at the moment PH2 = (L).
>> 
>> Hm.. I should be able to try this easily too. Actually I was thinking of something like that, as PHI2 (HI) is also used for allowing R/_W..
> 
> Check the datasheet if there is a minimum time between _RFSH going high and the next read or write access to the RAM happening. If yes, is it short enough for the VIC-20?

:-) I am not that much interested in the VIC-20 ;-)

But I found something interesting here:

http://www.d81.de/CLD-RAMBOard/RAMBOard-2C.shtml

-- 
SD!
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Received on 2013-06-29 22:00:10

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