Partlist CSA_CPU816_V2.0B U1 W65C816SP (40pin DIL) Note: RAM is what I used, other types should work as well Note: I used 2 DIP and 2 SOP as first try in using SMD IC6 512k Flash ROM Atmel AT29C010A 70ns IC2 512k RAM 628512 55ns (624008, 32p DIP32) BSI BS62LV4006PIP55 IC3,23 512k RAM 628512 55ns (624008, 32p SOP32) IC1 Xilinx XC9572-15 (15ns Xilinx CPLD, 72 Macrocells) IC5,9 74HCT245N IC7,8 74ALS245N IC10 74HCT573N IC15 74LS14N - Note a 74ALS14 is too fast! IC11 74HCT688 V6 74HCT193 QG1 16MHz Oscillator module P1 CSABUS