2 layers120.6 × 47 mm
2 layers114.9 × 165 mm
Arquitetura de processador conceitual
- Size
- 114.9 × 165 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 68
- Pads
- 262
- Tracks, vias
- 772, 93
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 11 Dec 2025
- Updated
- 24 Aug 2026
Overview
Mem is an open-source printed circuit board by rcapaverde, from the rcapaverde/cubo repository on GitHub. It is a 2-layer board of 114.9 × 165 mm with 30 parts on 68 nets, routed with 772 tracks and 93 vias.
It is built around the 74LS00SC and 74LS32SC. Its parts include 8 resistors, 6 capacitors, 6 ICs, 4 diodes and 4 connectors.
Main components
2README
README.mdcubo - um processador conceitual
Parts
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100nF | Capacitor_THT:C_Disc_D5.1mm_W3.2mm_P5.00mm | C1, C2, C3, C4, C5, C7 |
| 4 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4 |
| 4 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5, R6, R7, R8 |
| 2 | 10K | Resistor_THT:R_Array_SIP9 | RN1, RN2 |
| 2 | CY62256-70PC | Package_DIP:DIP-28_W15.24mm | U1, U2 |
| 2 | bus mem | edge_connector:conector 02x08 | J1, J2 |
| 1 | 74LS00 | Package_DIP:DIP-14_W7.62mm | U4 |
| 1 | 74LS138 | Package_DIP:DIP-16_W7.62mm | U7 |
| 1 | 74LS283 | Package_DIP:DIP-16_W7.62mm | U3 |
| 1 | 74LS32 | Package_DIP:DIP-14_W7.62mm | U5 |
| 1 | PWR | LED_THT:LED_D5.0mm | D5 |
| 1 | READ | LED_THT:LED_D5.0mm | D2 |
| 1 | ROM | LED_THT:LED_D5.0mm | D3 |
| 1 | WRITE | LED_THT:LED_D5.0mm | D1 |
| 1 | addr in | edge_connector:conector 02x08 | J4 |
| 1 | cartridge | edge_connector:male-edge-connector-44 | J3 |
Questions
How big is the Mem PCB?
It measures 114.9 × 165 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mem use?
30 parts, built around the 74LS00SC and 74LS32SC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Mem KiCad files?
From the rcapaverde/cubo repository on GitHub, at the commit this page was made from: the board is pcb_v3/mem/mem.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mem design in my own project?
Its repository states no licence, so its author keeps all rights: ask rcapaverde before reusing the design.
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