[TUHS] Off-topic: any logic designers here?
peter at rulingia.com
Thu Aug 10 18:16:20 AEST 2017
On 2017-Aug-08 12:52:36 +1000, Warren Toomey <wkt at tuhs.org> wrote:
>Hi all, sorry for this off-topic posting.
Well, just promise to port Unix to it and it won't be off-topic.
>Anyway, I thought it would be fun to do something similar but with
>a bigger address space and as few chips as I could get away with.
Well, using a FPGA or microcontroller will reduce the chip count further.
You suggest that you won't use a 74LS181 because they are no longer made.
Whilst that's true, they are still readily available as NOS. Overall, I
would suggest that using a 74LS181 (or 4) is a cleaner solution than
(ab)using a couple of EPROMs. (The other option would be a PAL or GAL but
I suspect finding and programming them would be more difficult).
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 949 bytes
Desc: not available
More information about the TUHS