Are there any memory IC's with a clock of at least 10Mhz, preferably more, that allows for async reading and writing? I need to be able to dump the memory serially, 1 bit at a time, in a continuous somewhat uninterrupted fashion while separately making random updates to the memory. I need max 1k of memory but I think I can even get away with
64 bytes.Here the writing is not suppose to effect the timing of the reading. The application is to feed a cascaded collection of IC's serially as fast as possible where the memory acts as a lookup table. The table will need to be modified though and I would like to avoid stopping the reading just to write. The writing can be delayed somewhat as it's not critical.
I can, of course, use a much faster uC but even here the data rate will not be continuous as it will have to pause for making updates to the memory. Using DMA would help as I could update while the DMA is sending the bits down the stream. This of course is much more complex than having a simple ic that will do all this and do it better.