8-bit computer ALU
About the 8-bit computer ALU PCB
8-bit computer ALU is an open source PCB design by xrayer2000, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 99.1 × 87.6 mm, with 46 components from 19 distinct parts.
Other key parts include the 74HCT04, 74HCT377, 74HCT157, 74HCT245 and 74F382. By type, the board carries 12 resistors, 11 capacitors, 9 ICs, 8 diodes, 3 connectors and 3 LEDs.
From the project
My 8-bit computer
This project is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).
You are free to: - Share (copy and redistribute the material in any medium or format) - Adapt (remix, transform, and build upon the material)
Under the conditions that: - You must give appropriate credit. - You may not use the material for commercial purposes.
Main components on the 8-bit computer ALU
8-bit computer ALU bill of materials (BOM)
46 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HCT04 | DIP-14_W7.62mm | U1 |
| 1 | 74HCT377 | DIP-20_W7.62mm | U3 |
| 2 | 74HCT157 | DIP-16_W7.62mm | U4, U5 |
| 1 | 74HCT245 | DIP-20_W7.62mm | U6 |
| 2 | 74F382 | DIP-20_W7.62mm | U7, U8 |
| 1 | 4078 | DIP-14_W7.62mm | U9 |
| 1 | 74HCT173 | DIP-16_W7.62mm | U10 |
| 1 | Control Signals | IDC-Header_2x07_P2.54mm_Vertical | J1 |
| 1 | B-Register | IDC-Header_2x05_P2.54mm_Vertical | J2 |
| 1 | Buss | IDC-Header_2x05_P2.54mm_Vertical | J3 |
| 1 | N | LED_D3.0mm | N1 |
| 1 | V | LED_D3.0mm | V1 |
| 1 | Z | LED_D3.0mm | Z1 |
| 8 | LED | LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8 |
| 1 | 100uF | CP_Radial_D4.0mm_P1.50mm | C1 |
| 9 | 100nF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C2, C3, C4, C5, C6, C7, C8, C9 +1 |
| 1 | C | LED_D3.0mm | C11 |
| 8 | 1K | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8 |
| 4 | 220 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R9, R10, R11, R12 |
8-bit computer ALU design files
The KiCad project lives in the xrayer2000/8-bit-computer-Documentation repository on GitHub; these links point at the commit this page was built from.
8-bit computer ALU: common questions
How big is the 8-bit computer ALU PCB?
The 8-bit computer ALU measures 99.1 × 87.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 8-bit computer ALU?
46 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the 8-bit computer ALU design files?
From the xrayer2000/8-bit-computer-Documentation repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the 8-bit computer ALU design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.
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