Graphics
About the Graphics PCB
Graphics is an open source PCB design by Noah1989, published on GitHub under the MIT license. It is a 2-layer board measuring 160 × 100 mm, with 67 components from 14 distinct parts.
Other key parts include the 74AC161, 74HC688, 74HC04, 74HC109 and 74AC573. By type, the board carries 34 ICs, 25 capacitors, 4 resistors, 2 connectors, 1 crystal and 1 switch.
From the project
An 8-bit microcomputer for the 21st century
- ... independent: - contains all the tools required to design another version of itself - does not require high soldering skills, uses through-hole parts only - uses only "evergreen" parts that have been in production for decades and are still made today
- ... aproachable: - simple through reduction - NO hidden complexity behind brittle abstractions - open source and self-documenting
Main components on the Graphics
Graphics bill of materials (BOM)
67 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 6 | 74AC161 | DIP-16_W7.62mm_Socket | U1, U2, U3, U4, U5, U6 |
| 9 | 74HC688 | DIP-20_W7.62mm_Socket | U7, U8, U9, U10, U11, U12, U13, U14 +1 |
| 1 | 74HC04 | DIP-14_W7.62mm_Socket | U15 |
| 2 | 74HC109 | DIP-16_W7.62mm_Socket | U16, U17 |
| 11 | 74AC573 | DIP-20_W7.62mm_Socket | U18, U19, U20, U21, U22, U23, U24, U25 +3 |
| 2 | 74AC138 | DIP-16_W7.62mm_Socket | U30, U31 |
| 3 | 74HC00 | DIP-14_W7.62mm_Socket | U32, U33, U34 |
| 1 | 25.175MHz | Oscillator_DIP-8_LargePads | X1 |
| 1 | C96ABC | Socket_DIN41612-CaseC1-full-Male-96Pin-3rows | J1 |
| 1 | Conn_01x26_Male | IDC-Header_2x13_P2.54mm_Horizontal | J2 |
| 1 | SW_Coded_SH-7050 | Nidec_Copal_SH-7010C | SW1 |
| 1 | CP_Small | CP_Radial_D5.0mm_P2.00mm | C1 |
| 24 | C_Small | C_Disc_D7.0mm_W2.5mm_P5.00mm | C2, C3, C4, C5, C6, C7, C8, C9 +16 |
| 4 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4 |
Graphics design files
The KiCad project lives in the Noah1989/loopmicro repository on GitHub; these links point at the commit this page was built from.
Graphics: common questions
How big is the Graphics PCB?
The Graphics measures 160 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Graphics?
67 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the Graphics design files?
From the Noah1989/loopmicro repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Graphics design in my own project?
Yes, under the terms of its MIT license, which Noah1989 chose for the repository.
