I'm designing a Z80 based computer and I want to hook up LEDs to the data, address and control busses (for added cool value). So far, the design is gonna be something like this: One board that the Z80 and RAM sits on, then that plugs into a mainboard with LEDs and slots for cards which connect to the CPU main bus for peripherals such as video or keyboard. Do I need buffers on the mainboard to drive the LEDs, expansion cards or both? What kind of current (and capacitance) can the Z80 CPU handle?
Thanks in advance