Re: 4168 "XRAM" in place of 4364 SRAM

From: Gerrit Heitsch <>
Date: Sat, 29 Jun 2013 23:34:59 +0200
Message-ID: <>
On 06/29/2013 11:24 PM, wrote:
> 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 ;-)

Where are you planning to use it in then?


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Received on 2013-06-29 22:01:22

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