CPCRAMCtrl
About the CPCRAMCtrl PCB
CPCRAMCtrl is an open source PCB design by Bread80, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 99.1 × 70.3 mm, with 28 components from 14 distinct parts.
Other key parts include the 74LS32, AMG40031, 74LS373, 74LS244 and 74LS04. By type, the board carries 9 ICs, 9 capacitors, 5 resistors and 2 jumpers.
It belongs with the retro computing designs in this gallery.
From the project
Modular Amstrad CPC Compatible Computer (WiP)
***This project is an unfinished work in progress. It currently has bugs and not all the features have been tested!
The current modules are designed to fit a slightly modified RC2014 Pro backplane. In the text below I shall explain the current status of the project, workarounds needed to get it running and basic build details. Due to the work in progress status of the project this document will be intentionaly terse.
Main components on the CPCRAMCtrl
CPCRAMCtrl bill of materials (BOM)
28 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 74LS32 | DIP-14_W7.62mm_Socket | IC112, IC192 |
| 1 | AMG40031 | DIP-20_W7.62mm | IC118 |
| 1 | 74LS373 | DIP-20_W7.62mm_Socket | U114 |
| 1 | 74LS244 | DIP-20_W7.62mm_Socket | U115 |
| 1 | 74LS04 | DIP-14_W7.62mm_Socket | U191 |
| 1 | 74LS08 | DIP-14_W7.62mm_Socket | U193 |
| 1 | 74LS173 | DIP-16_W7.62mm_Socket | U194 |
| 1 | 74LS74 | DIP-14_W7.62mm_Socket | U195 |
| 1 | CPCM_VideoRAM_EdgeBottom | Edge36_2.54PS | JP1 |
| 1 | CPCM_VideoRAM_EdgeTop | Edge36_2.54PS | JP2 |
| 3 | Jumper_NO_Small | PinHeader_1x02_P2.54mm_Vertical | LK5, LK6, LK7 |
| 9 | 0.1uF | C_Disc_D3.0mm_W2.0mm_P2.50mm | C1, C2, C3, C4, C5, C6, C7, C8 +1 |
| 4 | 2k2 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R124, R192, R193, R194 |
| 1 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R191 |
CPCRAMCtrl design files
The KiCad project lives in the Bread80/CPCModular repository on GitHub; these links point at the commit this page was built from.
CPCRAMCtrl: common questions
How big is the CPCRAMCtrl PCB?
The CPCRAMCtrl measures 99.1 × 70.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the CPCRAMCtrl?
28 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the CPCRAMCtrl design files?
From the Bread80/CPCModular repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the CPCRAMCtrl design in my own project?
Yes, under the terms of its CERN-OHL-P-2.0 license, which Bread80 chose for the repository.
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CPCROM
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CPCRAM
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