RAM and ROM
About the RAM and ROM PCB
RAM and ROM is an open source PCB design by stevegg, published on GitHub. It is a 2-layer board measuring 99.8 × 99.8 mm, with 11 components from 5 distinct parts.
Other key parts include the AS6C4008-55PCN, SST39SF040 and GAL16V8. By type, the board carries 5 ICs, 5 capacitors and 1 connector.
It belongs with the retro computing designs in this gallery.
From the project
Single Board 68k Computer
This is my extremely simple 68000 single board computer. It has 512k of ROM and 512k of RAM.
I'm building this to learn the fundamentals of microprocessors and their use in computer systems. Modern day computers are complex and require specific supporting chip sets. These retro processors were simple and much easier to understand but in the end the principles are the same.
Main components on the RAM and ROM
RAM and ROM bill of materials (BOM)
11 components, 5 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | AS6C4008-55PCN | DIP-32_W15.24mm | U1, U4 |
| 2 | SST39SF040 | DIP-32_W15.24mm | U2, U5 |
| 1 | GAL16V8 | DIP-20_W7.62mm_Socket_LongPads | U3 |
| 1 | Conn_02x32_Odd_Even | PinHeader_2x32_P2.54mm_Horizontal | J1 |
| 5 | .1uF | C_Disc_D3.4mm_W2.1mm_P2.50mm | C1, C2, C3, C4, C7 |
RAM and ROM design files
The KiCad project lives in the stevegg/Steve-68k repository on GitHub; these links point at the commit this page was built from.
RAM and ROM: common questions
How big is the RAM and ROM PCB?
The RAM and ROM measures 99.8 × 99.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the RAM and ROM?
11 components, from 5 distinct parts. The full bill of materials is listed on this page.
Where can I download the RAM and ROM design files?
From the stevegg/Steve-68k repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the RAM and ROM design in my own project?
The repository has no license, so all rights stay with stevegg. Use it as a reference, and ask the author before reusing the design.
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