2 layers171.2 × 72.9 mm
Amiga gfxcard old
mntmn/amiga2000-gfxcard
MNT VA2000, an Open Source Amiga 2/3/4000 Graphics Card (Zorro II/III), written in Verilog
34 parts1k
2 layers85 × 100 mm
Pal2rom
dimitrit/pal2romROM board for the PAL-2 Single Board Computer
- Size
- 85 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 83
- Pads
- 151
- Tracks, vias
- 588, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Oct 2026
- Updated
- 23 Oct 2026
Overview
Pal2rom is an open-source printed circuit board by dimitrit, from the dimitrit/pal2rom repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 85 × 100 mm with 17 parts on 83 nets, routed with 588 tracks and 0 vias.
It is built around the 74LS04PC. Its parts include 3 capacitors, 3 ICs, 2 connectors and 1 resistor. It belongs with the computers and single-board computers boards of this library.
Main components
1Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | .1uF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C1, C2, C3 |
| 1 | 1K2 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 28C256 | Socket:DIP_Socket-28_W11.9mm_W12.7mm_W15.24mm_W17.78mm_W18.5mm_3M_228-1277-00-0602J | U1 |
| 1 | 74LS04 | Package_DIP:DIP-14_W7.62mm | U3 |
| 1 | 74LS145 | Package_DIP:DIP-16_W7.62mm | U2 |
| 1 | A11_INV | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP7 |
| 1 | A12_INV | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP6 |
| 1 | A13_INV | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP5 |
| 1 | ADDR_SEL | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | JP1 |
| 1 | BANK_SEL | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP3 |
| 1 | BANK_SEL | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | JP2 |
| 1 | LOGO | LOGO | G*** |
| 1 | PAL2_Expansion | Connector_PinHeader_2.54mm:PinHeader_2x22_P2.54mm_Horizontal | J1 |
| 1 | RIOT+ | Connector_PinHeader_2.54mm:PinHeader_2x07_P2.54mm_Horizontal | J4 |
| 1 | VECTOR_SEL | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP4 |
Questions
How big is the Pal2rom PCB?
It measures 85 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pal2rom use?
17 parts, built around the 74LS04PC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Pal2rom KiCad files?
From the dimitrit/pal2rom repository on GitHub, at the commit this page was made from: the board is kicad/pal2rom.kicad_pcb and its schematic kicad/pal2rom.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pal2rom design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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