On 12/29/05, Roy J. Tellason <rtellason at blazenet.net> wrote: > Anybody have, or know where I can get, a datasheet for these chips I have > some of that are marked "74S409" and "DP8409"? I haven't had much luck > finding one so far... IIRC the 74S409 is a 48-pin DRAM controller. Maybe that will help? -ethan