On 12/21/2016 10:55 PM, Terry Raymond wrote: > Hi Gerrit, > > Below was what you mentioned to me about DRAM I found your old message > below, BTW I will try jumpering the 2164 as you mentioned see what happens. > I think maybe the 2164A is more used in the U.S.A. :) > Thank you, > > Terry Raymond > ---------------------------- > If you're in Germany, get 101 047 from www.pollin.de > <http://www.pollin.de/>. That's a NOS GM71256-12 (41256), sells for 40 > Cents and will work in a C64 if you connect Pin 1 to Pin 16. There is no > reason why it shouldn't work in a C128 or any other system that uses > 4164, as long as the DRAM controller supplies an 8Bit refresh (VIC and > TED do). I tried to look up the 2164. All I could find is that those are 64Kx1 DRAMs, you don't need any modification for those in a C128 or C64. Shortening Pin 1 with Pin 16 is only necessary for 256Kx1 DRAMs like the 41256 or I mentioned 71256 above. Gerrit Message was sent through the cbm-hackers mailing listReceived on 2016-12-22 08:00:20
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