MUX8x1-v5
About the MUX8x1-v5 PCB
MUX8x1-v5 is an open source PCB design by TheJustMoose, published on GitHub. It is a 4-layer board measuring 99.1 × 99.1 mm, with 47 components from 10 distinct parts.
Other key parts include the 74LS151 and 74HC245. By type, the board carries 19 connectors, 9 ICs, 9 capacitors, 7 resistors and 3 diodes.
From the project
Handmade CPU. See README.md
Not a very scary instruction set discrete logic processor.
8 bit data 16 bit address / 64KB RAM 17 bit address (in V register) / 128KW Dual Bank Video RAM 16 instructions 8 data registers and 4 pointer registers in 2 banks 1 flags register in IO port 32 input ports and 32 output ports (You can write a constant to the first 8 ports. Only registers can be written to the remaining ports.) Assembled from 74HCxx series ICs!
Main components on the MUX8x1-v5
MUX8x1-v5 bill of materials (BOM)
47 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 8 | 74LS151 | DIP-16_W7.62mm_Socket | U1, U2, U3, U4, U5, U6, U7, U8 |
| 1 | 74HC245 | DIP-20_W7.62mm_Socket | U9 |
| 14 | Conn_01x09_Male | PinHeader_1x09_P2.54mm_Vertical | J1, J2, J3, J4, J5, J6, J8, J11 +6 |
| 3 | Conn_01x01_Male | PinHeader_1x01_P2.54mm_Vertical | J7, J13, J20 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J9 |
| 1 | Conn_01x03_Male | PinHeader_1x03_P2.54mm_Vertical | J10 |
| 3 | LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2, D3 |
| 9 | 0.1uF | C_Axial_L5.1mm_D3.1mm_P15.00mm_Horizontal | C1, C2, C3, C4, C5, C6, C7, C8 +1 |
| 4 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R7 |
| 3 | 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R5, R6 |
MUX8x1-v5 design files
The KiCad project lives in the TheJustMoose/74HCPU repository on GitHub; these links point at the commit this page was built from.
MUX8x1-v5: common questions
How big is the MUX8x1-v5 PCB?
The MUX8x1-v5 measures 99.1 × 99.1 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the MUX8x1-v5?
47 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the MUX8x1-v5 design files?
From the TheJustMoose/74HCPU repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the MUX8x1-v5 design in my own project?
The repository has no license, so all rights stay with TheJustMoose. Use it as a reference, and ask the author before reusing the design.
More boards in 74HCPU
Regs v6
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MUX8x1-100x150-r2
160 × 99.1 mm44 parts2LNo license2
ROM
149.9 × 99.1 mm40 parts2LNo license2
MUX
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Reg
71.1 × 42.6 mm38 parts2LNo license2
MUX4x1
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AND
81.3 × 31.8 mm10 parts2LNo license2
MUX1
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Earlier revisions in the repo: MUX8x1-v4, MUX8x1-v3