4 layers254 × 134.6 mm

Z280-S100
cm68/Z280-S100
16-bit Zilog Z280 CPU card for the IEEE-696 S-100 backplane; glue logic in two ATF1508AS CPLDs
61 parts1CERN-OHL-P-2.0
KiCad boards from 1 GitHub repository tagged “s-100”, the most starred first; open any of them in PCBKit.

cm68/Z280-S100
16-bit Zilog Z280 CPU card for the IEEE-696 S-100 backplane; glue logic in two ATF1508AS CPLDs