On 4/19/2018 3:48 PM, Mia Magnusson wrote: > Den Tue, 17 Apr 2018 12:22:41 +0200 skrev Michał Pleban > <lists@michau.name>: > > Nice! > > Btw I've noticed that availability and price of those old-style sram's > have varied quite a bit during the last years. > > When you already have buffers for all adress lines and most control > lines, maybe it would be a good idea to add something for the rest of > the lines, and choose all components so it would be possible to fit a > 3.3V SRAM (assuming a 3.3V regulator somewhere). > > Or maybe this isn't any good idea :) > I think it's a fine idea, and one I use a lot. However, most newer SRAM is SMT, 3V3 or not. If you're going to move to SMT, I would recommend putting all the logic to a CPLD (Xilinx XC95000xl series are 3v3 units with 5V tolerance when powered). But, if one wants to stay through hole, I think it is still possible (I think you cna buy LVX/LVC TTL in DIP form that are 5V tolerantReceived on 2018-04-20 02:00:02
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