Display front
About the Display front PCB
Display front is an open source PCB design by Velko, published on GitHub under the MIT license. It is a 2-layer board measuring 62.2 × 21.6 mm, with 31 components from 10 distinct parts.
Other key parts include the 74HC04 and SC39-11GWA. By type, the board carries 12 transistors, 8 resistors, 5 ICs, 4 connectors and 2 capacitors.
It belongs with the displays & leds and retro computing designs in this gallery.
From the project
Homebrew 8-bit CPU
After watching [series of videos][eater-net-8bit] by Ben Eater building an 8-bit computer from scratch, I was hooked. Various thoughts for improvements and experiments was running through my mind. But first I have to build one. Improvements will come later. Whom am I kidding? I'll never be able to build an exact replica, I'll incorporate improvements as I go.
Main components on the Display front
Display front bill of materials (BOM)
31 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC04 | SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 4 | SC39-11GWA | Sx39-1xxxxx | U2, U3, U4, U5 |
| 12 | Q_NMOS_GSD | SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +4 |
| 1 | Anodes | PinHeader_1x08_P2.54mm_Vertical | J5 |
| 1 | Cathodes | PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | VCC | PinHeader_1x02_P2.54mm_Vertical | J9 |
| 1 | GND | PinHeader_1x02_P2.54mm_Vertical | J10 |
| 1 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C9 |
| 1 | 10uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C10 |
| 8 | 100 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8 |
Display front design files
The KiCad project lives in the Velko/8-bit-CPU repository on GitHub; these links point at the commit this page was built from.
Display front: common questions
How big is the Display front PCB?
The Display front measures 62.2 × 21.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Display front?
31 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the Display front design files?
From the Velko/8-bit-CPU repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Display front design in my own project?
Yes, under the terms of its MIT license, which Velko chose for the repository.
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