2 layers97.8 × 81.3 mm

TR4org ROM
nanamitm/TR4org-ROM
Standalone KiCad 10 project for the external ROM board used with the TR4org TD4 4-bit CPU reproduction. The schematic implements a jumper-programmed 16 x 8 diode-matrix ROM.
221 parts
Boards in 2 GitHub repositories, designed in KiCad, that use the SN74HC04DR by Texas Instruments (-40℃~+85℃ 1 1.5V~4.2V 1.9V、4.4V、5.9V 100mV、100mV、100mV 16ns@6V,50pF 2V~6V 2uA 5.2mA 5.2mA 500mV~1.8V 6 74HC SOIC-14 Inverters ROHS). See how each wires it, with its parts, size, README and files; the SN74HC04DR’s symbol, footprint and pinout are on its own page.

nanamitm/TR4org-ROM
Standalone KiCad 10 project for the external ROM board used with the TR4org TD4 4-bit CPU reproduction. The schematic implements a jumper-programmed 16 x 8 diode-matrix ROM.


mehrantsi/MSAP-2
An 8-bit computer. Successor to MSAP-1