2 layers88.9 × 55.6 mm
2 layers122.9 × 63.5 mm
P2000m cpm coboard
ifilot/p2000m-cpm-coboardCP/M board for the P2000M
- Size
- 122.9 × 63.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 77
- Pads
- 261
- Tracks, vias
- 983, 73
- Pours
- 482
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 Aug 2026
- Updated
- 26 Sep 2026
Overview
P2000m cpm coboard is an open-source printed circuit board by ifilot, from the ifilot/p2000m-cpm-coboard repository on GitHub. It is a 2-layer board of 122.9 × 63.5 mm with 24 parts on 77 nets, routed with 983 tracks and 73 vias.
It is built around the 74LS02PC and 74LS74PC. Its parts include 8 capacitors, 8 ICs, 5 connectors and 3 resistors.
Main components
2
74LS02PC
DIP-140℃~+70℃ 15ns@5V,15pF 2 2.7V 2V 4 4.75V~5.25V 400uA 500mV 74LS 800mV 8mA 8mA NOR Gate DIP-14 Logic Gates ROHSonsemiLogic Gates74LS74PC
DIP-140ns 0℃~+70℃ 1 2 20MHz 3.5pF 35ns@5V,50pF 4.5ns 4.75V~5.25V 400uA 74LS Series 8mA 8mA Asynchronous Complementary D-Type Rising Edge Set and Reset DIP-14 Flip FlopsTexas InstrumentsFlip Flops
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 0.1uF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C2, C3, C4, C5, C6, C8 |
| 2 | 2k2 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2 |
| 1 | 100uF | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C7 |
| 1 | 4k7 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 74LS02 | Package_DIP:DIP-14_W7.62mm_Socket | U8 |
| 1 | 74LS138 | Package_DIP:DIP-16_W7.62mm_Socket | U5 |
| 1 | 74LS283 | Package_DIP:DIP-16_W7.62mm_Socket | U6 |
| 1 | 74LS74 | Package_DIP:DIP-14_W7.62mm_Socket | U4 |
| 1 | 82S123 | Package_DIP:DIP-16_W7.62mm_Socket | U7 |
| 1 | CPU BOARD | Connector_IDC:IDC-Header_2x20_P2.54mm_Vertical | J1 |
| 1 | CY62256-70PC | Package_DIP:DIP-28_W15.24mm_Socket | U1 |
| 1 | DIL16 | Package_DIP:DIP-16_W7.62mm_Socket | U3 |
| 1 | EXPANSION BOARD | Connector_IDC:IDC-Header_2x20_P2.54mm_Vertical | J2 |
| 1 | POWER | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | SST39SF010 | Package_LCC:PLCC-32_THT-Socket | U2 |
| 1 | T/~{M} | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | TERMINAL | TerminalBlock_RND:TerminalBlock_RND_205-00232_1x02_P5.08mm_Horizontal | J5 |
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Questions
How big is the P2000m cpm coboard PCB?
It measures 122.9 × 63.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the P2000m cpm coboard use?
24 parts, built around the 74LS02PC and 74LS74PC. 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 P2000m cpm coboard KiCad files?
From the ifilot/p2000m-cpm-coboard repository on GitHub, at the commit this page was made from: the board is pcb/original-modern-ram/p2000m-cpm-coboard.kicad_pcb and its schematic connector/connector.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the P2000m cpm coboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask ifilot before reusing the design.