Sheldon Simms wrote:
You are right. The SRAMs I have are Hitachi HM6264ALP-12. I just stupidly assumed that was 12ns when it's actually 120 ns. Well I will go ahead and put in some faster SRAM and see if I can get at least the 40Mhz oscillator working. I would like to try a faster 65c02 too. It would be really nice to get this IIc+ going at 16 or 20 Mhz.
I was fortunate in that mine had 100ns SRAM. I never did like the way they marked a lot of RAM, especially the way -12 can meam 12 or 120. In some cases all of the numbers are proprietry. Wayne