I'm looking to build a reusable memory card for my SRAM as the cost of the chips can get up there. I'd like to be able to plug this into other projects (mainly with a W65C816S as I work with it) both with a breadboard and other PCBs.
Before I go about laying this down on a PCB I'm wondering if there is anything wrong or if there are any other suggestions. I can't really breadboard this as the memory is all surface mounted.
I've updated the circuit to add in buffers and bypass caps. For the data buffer to work I needed to add the direction signal to the header so there are some extra pins now. Are there any additional suggestions or comments?
Current circuit. I've changed the multiplexer chip to be low active. It's much faster propagation time is nice. The connector has been updates as well, so hopefully it's handling power and ground a little better. Additionally this has CE line suggestion @PeterSmith