Ya4b alu
About the Ya4b alu PCB
Ya4b alu is an open source PCB design by lafehubert, published on GitHub. It is a 2-layer board measuring 227 × 150.1 mm, with 133 components from 17 distinct parts.
Other key parts include the 74LS154, 74LS379, 74LS173, 74LS243 and 74LS283. By type, the board carries 57 diodes, 28 ICs, 28 capacitors, 19 resistors and 1 connector.
From the project
A place for info and code relating to my electronics projects
Here be schematics and PCB designs for YA4B, the 4-bit computer I'm designing.
I use KiCad (https://www.kicad-pcb.org/) for the designs, and an Arduino Mega 2560 to run the test code.
Main components on the Ya4b alu
Ya4b alu bill of materials (BOM)
133 components, 17 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS154 | DIP-24_W15.24mm_Socket | U1 |
| 2 | 74LS379 | DIP-16_W7.62mm_Socket | U2, U3 |
| 2 | 74LS173 | DIP-16_W7.62mm_Socket | U4, U5 |
| 7 | 74LS243 | DIP-14_W7.62mm_Socket | U6, U7, U8, U9, U10, U11, U12 |
| 2 | 74LS283 | DIP-16_W7.62mm_Socket | U13, U14 |
| 1 | 74LS157 | DIP-16_W7.62mm_Socket | U15 |
| 1 | 74LS85 | DIP-16_W7.62mm_Socket | U16 |
| 5 | 74LS08 | DIP-14_W7.62mm_Socket | U17, U18, U19, U20, U21 |
| 3 | 74LS32 | DIP-14_W7.62mm_Socket | U22, U23, U28 |
| 2 | 74LS86 | DIP-14_W7.62mm_Socket | U24, U25 |
| 2 | 74LS04 | DIP-14_W7.62mm_Socket | U26, U27 |
| 1 | Conn_01x38 | PinHeader_1x38_P2.54mm_Vertical | J1 |
| 57 | LED | LED_Rectangular_W5.0mm_H2.0mm | D1, D2, D3, D4, D5, D6, D7, D8 +49 |
| 28 | 0.1µF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2, C3, C4, C5, C6, C7, C8 +20 |
| 5 | 470Ω | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4, R5 |
| 13 | 470Ω | R_Array_SIP5 | RN1, RN2, RN3, RN4, RN5, RN6, RN8, RN9 +5 |
| 1 | 10kΩ | R_Array_SIP5 | RN7 |
Ya4b alu design files
The KiCad project lives in the lafehubert/electronics repository on GitHub; these links point at the commit this page was built from.
Ya4b alu: common questions
How big is the Ya4b alu PCB?
The Ya4b alu measures 227 × 150.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Ya4b alu?
133 components, from 17 distinct parts. The full bill of materials is listed on this page.
Where can I download the Ya4b alu design files?
From the lafehubert/electronics repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Ya4b alu design in my own project?
The repository has no license, so all rights stay with lafehubert. Use it as a reference, and ask the author before reusing the design.
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