Quick question to someone who has done this recently - the last time I used SRAM on a micro, I used 6116 and 6164 memory (actually more recently I used 4164 DRAMs with a Z80!) ... I can certainly spend time looking at the data sheet to work this out, but on a Mega64 or 128, using external memory, if I'm running a 16 Mhz clock with a 74AHC373 address latch, .. 1. what speed SRAM will I need for zero wait states? 2. What generally available 32 k byte or larger SRAM chip are generally available these days? I'm assuming the 62256 SMD chips that are readily found on many 10 year old PCBs (HDDs, etc.) are now very hard to source, and certainly unwise to use in a new design. Peter.
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Mega-64/128 SRAM 0 wait state requirements?
2006-03-09 by Peter Gargano