CpuZ80
About the CpuZ80 PCB
CpuZ80 is an open source PCB design by nandgate, published on GitHub under the MIT license. It is a 2-layer board measuring 122.9 × 99.6 mm, with 33 components from 19 distinct parts.
Other key parts include the 74HCT161, Z80CPU, 74LS573, 74LS245 and ATF16V8C. By type, the board carries 10 capacitors, 9 ICs, 6 resistors, 5 connectors, 1 crystal and 1 diode.
From the project
Hardware designs for 8-bit homebrew computer
Hardware files for the 8-bit homebrew project.
Each folder contains the KiCad project for a processor/board. Under the PLD there is a folder with the WinCUPL projects for the PLD for each board.
Main components on the CpuZ80
CpuZ80 bill of materials (BOM)
33 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HCT161 | DIP-16_W7.62mm | U1 |
| 1 | Z80CPU | DIP-40_W15.24mm | U2 |
| 3 | 74LS573 | DIP-20_W7.62mm | U3, U4, U5 |
| 1 | 74LS245 | DIP-20_W7.62mm | U6 |
| 1 | ATF16V8C | DIP-20_W7.62mm | U7 |
| 1 | 28C256 | DIP-28_W15.24mm | U8 |
| 1 | 74LS00 | DIP-14_W7.62mm | U9 |
| 1 | 8.0 MHz | Oscillator_DIP-14 | X1 |
| 1 | Conn_02x01 | PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Conn_02x05_Odd_Even | PinHeader_2x05_P2.54mm_Vertical | J2 |
| 1 | Conn_02x21_Odd_Even | PinHeader_2x21_P2.54mm_Vertical | J3 |
| 2 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J4, J5 |
| 1 | TBA_2-1211 | CONV_TBA_2-1211 | PS1 |
| 1 | IRL81A | LED_D5.0mm | D1 |
| 9 | 0.1 uF | C_Rect_L7.2mm_W3.0mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C1, C2, C3, C4, C5, C6, C7, C8 +1 |
| 1 | 47 uF | CP_Radial_D5.0mm_P2.00mm | C10 |
| 3 | R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3 |
| 2 | 10.5K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R7 |
| 1 | 3.3K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
CpuZ80 design files
The KiCad project lives in the nandgate/Homebrew-HW repository on GitHub; these links point at the commit this page was built from.
- LayoutcpuZ80/cpuZ80.kicad_pcb
- SchematiccpuZ80/cpuZ80.kicad_sch
CpuZ80: common questions
How big is the CpuZ80 PCB?
The CpuZ80 measures 122.9 × 99.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the CpuZ80?
33 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the CpuZ80 design files?
From the nandgate/Homebrew-HW repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the CpuZ80 design in my own project?
Yes, under the terms of its MIT license, which nandgate chose for the repository.
