Mainboard
About the Mainboard PCB
Mainboard is an open source PCB design by mianderson2469, published on GitHub. It is a 2-layer board measuring 101.4 × 137.7 mm, with 33 components from 21 distinct parts.
Other key parts include the z84c3004psc, Z80CPU, 74LS138, 74LS245 and 74LS574. By type, the board carries 11 resistors, 10 ICs, 6 capacitors, 4 connectors and 2 crystals.
It belongs with the retro computing designs in this gallery.
From the project
My z80 computer
Main components on the Mainboard
Mainboard bill of materials (BOM)
33 components, 21 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | z84c3004psc | z84c3004psc | U1 |
| 1 | Z80CPU | DIP_Socket-40_W11.9_W12.7_W15.24_W17.78_W18.5_3M_240-1280-00-0602J | U2 |
| 2 | 74LS138 | DIP-16_W10.16mm | U4, U5 |
| 1 | 74LS245 | DIP-20_W7.62mm | U7 |
| 3 | 74LS574 | DIP-20_W7.62mm_Socket | U10, U11, U12 |
| 1 | SN74LS04N | DIP-14_W7.62mm | U13 |
| 1 | 16550 | DIP-40_W15.24mm | U14 |
| 1 | CXO_DIP8 | Oscillator_DIP-8 | X1 |
| 1 | 1.8432 MHz | Oscillator_DIP-8 | X2 |
| 3 | Conn_02x20_Odd_Even | IDC-Header_2x20_P2.54mm_Vertical | J1, J2, J6 |
| 1 | Conn_02x04_Odd_Even | JST_PHD_B8B-PHDSS_2x04_P2.00mm_Vertical | J7 |
| 2 | 1nF | CP_Radial_D4.0mm_P1.50mm | C1, C5 |
| 4 | 1000uF | CP_Radial_D4.0mm_P1.50mm | C2, C3, C4, C6 |
| 1 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 50 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | 180 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | 47k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R4 |
| 1 | 3.3k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5 |
| 4 | 10k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R6, R9, R10, R11 |
| 1 | 100 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R7 |
Show 1 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 3.3k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R8 |
Mainboard design files
The KiCad project lives in the mianderson2469/z80 repository on GitHub; these links point at the commit this page was built from.
- LayoutMainboard.kicad_pcb
Mainboard: common questions
How big is the Mainboard PCB?
The Mainboard measures 101.4 × 137.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mainboard?
33 components, from 21 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mainboard design files?
From the mianderson2469/z80 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Mainboard design in my own project?
The repository has no license, so all rights stay with mianderson2469. Use it as a reference, and ask the author before reusing the design.
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