The Z80 is still manufactured today and I was wondering whether there is any interest for a community or discussion group.
The Z80 is still manufactured today and I was wondering whether there is any interest for a community or discussion group.
I would have an interest in such a discussion. I still build with them and have since the 70s. Still have handfuls of them to play with. Have made several dev. boards also.(I realize this is a very old post)
I would have an interest in such a discussion. I still build with them and have since the 70s. Still have handfuls of them to play with. Have made several dev. boards also.(I realize this is a very old post)
That's fantastic!
I found the Z80 to be an absolutely perfect tuition aid as you didn't need a computer to build a computer.
(However a PROM programmer comes in quite handy!)
The most simple Z80 configuration doesn't require any external memory and can blink LEDS and can also run as a pausable and resettable binary counter.
Making it run NOPS? Basically turns it into two 4 bit counters. I have some PCB designs made for that to use as sequencers.Clock as slow or fast as it can go!That's as simple as it gets. That should be the first thing everyone does with one.
As a side note-you can buy the Z80 on Ebay for a little more than a dollar each.......The first one I bought in the 70s was way more than that! US supplier Jameco Electronics has the Z80 for 2.49 and also sells the interface chips for even more fun.
More like a 16 bit counter but remember that the Z80 will pump out Refresh addresses on (M1) instruction fetch cycles.
The NMOS part has a lower speed minimum but the CMOS can be run as slow as one likes.
Sorry for the belated response.
Please do share what you have done!