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PALs and 2023

SGarciaV

Hello all!

My first post in this forum. I haven't been to E14 in a while; now everything is different!

I may start a project in the near future that involves TTL 74LS logic. Currently, I will be using one 74LS00, but the chip count may rise depending on design decisions. A priority is keeping the chip count down, so I may want to integrate some of the glue logic. Way back - in the 80s -  I used PALs for this purpose. Doing some research, I see that this option is still available. Since we have fast-forward a few decades since the 80s, I am wondering if there is a more modern, mainstream option, other than PALs (or GALs).

This forum was the closest I could find to programmable logic, I hope it is the correct place to ask. I should mention that if my needs are simple enough a 16L8 PAL might do the trick (sorry, trying to remember this from back then). I have a TL866 II Plus, so if the device can be programmed with this programmer, it would be a plus. Thanks for any orientation or feedback. Salvador

Parents

  • As charlieo21 mentioned  both CPLDs and FPGAs are the next step on the ladder and what programmable logic has ultimately evolved to.  With that said I study the schematics of old arcade boards and noticed that GALs were commonly used back in the 80s for some of the glue logic.  So as of late I've been intrigued with the idea of using a GAL as a way of doing something retro without using dozens 7400 series parts.

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  • As charlieo21 mentioned  both CPLDs and FPGAs are the next step on the ladder and what programmable logic has ultimately evolved to.  With that said I study the schematics of old arcade boards and noticed that GALs were commonly used back in the 80s for some of the glue logic.  So as of late I've been intrigued with the idea of using a GAL as a way of doing something retro without using dozens 7400 series parts.

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