6 layers177.8 × 168.9 mm

LogicBoard smt
clydeshaffer/gametank
design files for the gametank hardware implementation
225 parts150
Boards in 2 GitHub repositories, designed in KiCad, that use the CD74AC161M96 by Texas Instruments (-55℃~+125℃ 1 1.5V~5.5V 90MHz Asynchronous Divide-by-2 Rising Edge Synchronous Up Counter SOIC-16 Counters, Dividers ROHS). See how each wires it, with its parts, size, README and files; the CD74AC161M96’s symbol, footprint and pinout are on its own page.

clydeshaffer/gametank
design files for the gametank hardware implementation

mmosko/Zx50
This is the primary CPU board for the Zx50 8-slot passive backplane system. It hosts the Z80 microprocessor (running at 5 MHz to 10 MHz) and acts as the master controller for the primary bus.