25-11-2023, 04:15 PM
Hi John,
it looks like you’ve had fun & invested a fair bit of time into it.
Someone would start just using the SRAM and a glue logic GAL(reprogrammable PAL).
Then if needed add the buffers.
To simplify the PCB design, why not use a 74xx640 transceiver for the data bus and 74xx541 the address bus?
Good Luck and cheers
Someone
it looks like you’ve had fun & invested a fair bit of time into it.
Someone would start just using the SRAM and a glue logic GAL(reprogrammable PAL).
Then if needed add the buffers.
To simplify the PCB design, why not use a 74xx640 transceiver for the data bus and 74xx541 the address bus?
Good Luck and cheers
Someone