MSX Goauld Rev4
jabadiagm·MSXgoauld_tn20k·kicad/v4/MSX_Goauld_Rev4.kicad_pcb
About the MSX Goauld Rev4 PCB
MSX Goauld Rev4 is an open source PCB design by jabadiagm, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 33.3 × 54.6 mm, with 17 components from 12 distinct parts.
Other key parts include the 74HCT373, 74LVC245, 74HC245, Tang_Nano_20k and AMS1117-3.3_C347222. By type, the board carries 7 ICs, 4 connectors, 3 capacitors, 2 diodes and 1 resistor.
It belongs with the retro computing designs in this gallery.
From the project
MSX Goa'uld board with Tang Nano 20k
Although Fourth Revision is a prototype, it works with both MSX Hotbit (with 512KB mapper) and MSX Expert. The third revision has not been pulled because it didn't work.
Check our Interactive BOM to have better details.
\* Choose D1 or D2 to use if you want voltage protection over HDMI. You can also choose not to use them by placing a jumper, but make sure to power MSX before connecting Goa'uld to an HDMI monitor.

Main components on the MSX Goauld Rev4
MSX Goauld Rev4 bill of materials (BOM)
17 components, 12 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 74HCT373 74AHCT373 | TSSOP-20 | U1, U2 |
| 2 | 74LVC245 SN74LVC245AN | TSSOP-20 | U3, U4 |
| 1 | 74HC245 SN74LVC245AN | TSSOP-20 | U5 |
| 1 | Tang_Nano_20k | TN20K | U6 |
| 1 | AMS1117-3.3_C347222 | AMS1117_3V3 | U7 |
| 1 | Z80CPU | Z80 | J1 |
| 3 | ~ | JUMPER | J2, J3, J4 |
| 1 | DSS32_SOD123FL 1N5817 | SCHOTKKY_THT | D1 |
| 1 | ~ | schottky | D2 |
| 1 | 100u | SMD_CAP_10V | C1 |
| 2 | 22u | SMD_CAP_10V | C2, C3 |
| 1 | 10K 10k | SMD_RES_2 | R1 |
MSX Goauld Rev4 design files
The KiCad project lives in the jabadiagm/MSXgoauld_tn20k repository on GitHub; these links point at the commit this page was built from.
MSX Goauld Rev4: common questions
How big is the MSX Goauld Rev4 PCB?
The MSX Goauld Rev4 measures 33.3 × 54.6 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the MSX Goauld Rev4?
17 components, from 12 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the MSX Goauld Rev4 design files?
From the jabadiagm/MSXgoauld_tn20k repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the MSX Goauld Rev4 design in my own project?
Yes, under the terms of its GPL-3.0 license, which jabadiagm chose for the repository.
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