4 layers233.4 × 100 mm
2 layers233.3 × 100 mm
Support Board
FoxCutter/486Dev44Repo for the 486 breadboard computer project
- Size
- 233.3 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 44
- Nets
- 191
- Pads
- 493
- Tracks, vias
- 2,300, 154
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 22 Mar 2023
- Updated
- 12 Jun 2023
Overview
Support Board is an open-source printed circuit board by FoxCutter, from the FoxCutter/486Dev repository on GitHub, published under the BSD-3-Clause licence. It is a 2-layer board of 233.3 × 100 mm with 44 parts on 191 nets, routed with 2,300 tracks and 154 vias.
It is built around the 74HC14. Its parts include 17 connectors, 6 resistors, 5 capacitors, 3 diodes and 2 ICs.
Main components
1README
README.md486Dev
Repo for the 486 breadboard computer project
Parts
44| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3, C4, C5 |
| 4 | 470 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4, R5, R6 |
| 4 | MountingHole_2.7mm_M2.5_ISO7380 | MountingHole:MountingHole_2.7mm_M2.5_ISO7380 | REF1, REF2, REF3, REF4 |
| 2 | DIN41612_03x32_ABC | Connector_DIN:DIN41612_R_3x32_Male_Horizontal_THT | JA1, JB1 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C1 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 1 | 74HC14 | Package_SO:SO-14_5.3x10.2mm_P1.27mm | U1 |
| 1 | ATX Power | Connector_Molex:Molex_Mini-Fit_Jr_5566-24A_2x12_P4.20mm_Vertical | J3 |
| 1 | Address Bus | Connector_PinHeader_2.54mm:PinHeader_1x36_P2.54mm_Vertical | J4 |
| 1 | Bus Arbitration | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J11 |
| 1 | Bus Not Connected | Connector_PinHeader_2.54mm:PinHeader_1x35_P2.54mm_Vertical | J15 |
| 1 | Bus Size | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical | J6 |
| 1 | CLK | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | CLK | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | CLK LED | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | CPU Not Connected | Connector_PinHeader_2.54mm:PinHeader_1x15_P2.54mm_Vertical | J14 |
| 1 | CXO_DIP14 | Oscillator:Oscillator_DIP-14 | X1 |
| 1 | Cache | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical | J12 |
| 1 | Control Bus | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical | J7 |
| 1 | Control Lines | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical | J8 |
| 1 | Data Bus | Connector_PinHeader_2.54mm:PinHeader_1x36_P2.54mm_Vertical | J5 |
| 1 | Front Panel IO | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J2 |
| 1 | GND | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J17 |
| 1 | IRQ | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical | J10 |
| 1 | Input | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J9 |
| 1 | LOGO | Private Lib:Fox Logo | G*** |
| 1 | Max16054 | Package_TO_SOT_SMD:TSOT-23-6 | U2 |
| 1 | PWR | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2 |
| 1 | PWR | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J16 |
| 1 | Parity | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J13 |
| 1 | Power | Private Lib:7mm x 7mm Tactile Switch | SW1 |
| 1 | Reset | Button_Switch_THT:SW_PUSH_6mm | SW2 |
| 1 | STAND_BY | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D3 |
Questions
How big is the Support Board PCB?
It measures 233.3 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Support Board use?
44 parts, built around the 74HC14. 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 Support Board KiCad files?
From the FoxCutter/486Dev repository on GitHub, at the commit this page was made from: the board is Support Board/Support Board.kicad_pcb and its schematic 486 Board/486 Board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Support Board design in my own project?
Its repository publishes it under the BSD-3-Clause licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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