I am making a 300kBps data logger. DS89C420 and standard 50pins 1 to 8GB CF Card. All in a cell phone size epoxy tag. Instead of having the Dallas controller to do the data protocol out of the tag I'm thinking of having an USB chip do do the work. I need a chip (chip set) which connects to the CFC 50 pins in one end and an USB 4 pin port at the other ending up with a similar devise as those simpel flash card readers you can buy everywhere. Does this exists and how small could I expect to have it on my circuit board?
Kind regards Niels U. Kristiansen Aarhus University