Zilog Z80 CPU – Modern, free and open source silicon clone
1–10 of 75 posts
Re: Zilog Z80 CPU – Modern, free and open source silicon clone
#2What Tiny Tapeout is doing is amazing. Who would have thought that makers and students could have their own chip design made real for so little money?
The tools look amazing as well. You'll won't design the next Intel CPU on that 130nm process but to think that the Z80 will fit on 0.064 mm2 is just amazing.
It's great that there will still be an alternative to the official chip now that it won't be manufactured any more.
Now I want that gorgeous mauve ceramic package with a gold-plated cover over the chip...
https://twitter.com/l_vanek/status/1783557817133039738/photo...
Re: Zilog Z80 CPU – Modern, free and open source silicon clone
#3Z80 was the CPU of the ZX Spectrum. Oh the memories...
Re: Zilog Z80 CPU – Modern, free and open source silicon clone
#4What Tiny Tapeout is doing is amazing. Who would have thought that makers and students could have their own chip design made real for so little money? The tools look amazing as well. You'll won't design the next Intel CPU on that 130nm process but to think that the Z80 will fit on 0.064 mm2 is just amazing. It's great that there will still be an alternative to the official chip now that it won't be manufactured any m…
To save a click
> 160 x 100 um tile + ASIC + demonstration board: The standard price is $300 plus shipping.
> However, Efabless is sponsoring a special early bird offer of $150 (plus shipping), limited to one order per person.
> Each extra tile is $50, and extra analog pins start from $40 per pin.
Unless I am badly mistaken 160 x 100 um is .16 x .1 mm which means the tile is 0.016 mm2 meaning a 0.064 mm2 die takes four slots?
Re: Zilog Z80 CPU – Modern, free and open source silicon clone
#5Does anyone know what clock speeds we might be able to expect from this?
Re: Zilog Z80 CPU – Modern, free and open source silicon clone
#6Does anyone know what clock speeds we might be able to expect from this?
This page says 50 MHz.
https://github.com/rejunity/z80-open-silicon/blob/main/docs/...
Re: Zilog Z80 CPU – Modern, free and open source silicon clone
#7For those wondering, the 6502 and various derivatives are still being manufactured, by one of its original creators [0] - so I'd guess an equivalent development in the world of the Z80's nemesis is unlikely anytime soon.
Re: Zilog Z80 CPU – Modern, free and open source silicon clone
#8For those wondering, the 6502 and various derivatives are still being manufactured, by one of its original creators [0] - so I'd guess an equivalent development in the world of the Z80's nemesis is unlikely anytime soon. [0] https://www.westerndesigncenter.com/wdc/chips.php
[deleted]
Re: Zilog Z80 CPU – Modern, free and open source silicon clone
#9For those wondering, the 6502 and various derivatives are still being manufactured, by one of its original creators [0] - so I'd guess an equivalent development in the world of the Z80's nemesis is unlikely anytime soon. [0] https://www.westerndesigncenter.com/wdc/chips.php
[deleted]
Re: Zilog Z80 CPU – Modern, free and open source silicon clone
#10For those wondering, the 6502 and various derivatives are still being manufactured, by one of its original creators [0] - so I'd guess an equivalent development in the world of the Z80's nemesis is unlikely anytime soon. [0] https://www.westerndesigncenter.com/wdc/chips.php
65*C*02, which might fail if your 6502 code depends on illegal opcodes or incidental memory access or BCD math cycle timing or BCD math flags or perhaps decimal mode being set in an interrupt routine.