Hi Miguel, good work, it is nice to see the old 8088 back in action. I can resume your circuit: 3MHz 8088 8k Eprom 8k Ram UART 3 I/O Ports (24 pins) Do you have any specific application in mind for this circuit? It is very interesting how things can be done in such different ways. For example, the 89C51 microcontroller can do everything aboveħ in just 3 chips ('51 + '573 + Ram), except, of course, it does not run 8088 instruction set.