MegaFDC
About the MegaFDC PCB
MegaFDC is an open source PCB design by climatex, published on GitHub. It is a 2-layer board measuring 101.8 × 57 mm, with 35 components from 21 distinct parts.
Other key parts include the PC8477B. By type, the board carries 10 resistors, 9 connectors, 7 jumpers, 6 capacitors, 1 IC and 1 transistor.
From the project
Arduino floppy disk controller interface.
Supports 8" / 5.25" / 3.5" drives (PS/2 2.88MB included) with custom geometry, FAT12 and experimental CP/M.
Interfaces via USB/RS232, also through keyboard and display.
Main components on the MegaFDC
MegaFDC bill of materials (BOM)
35 components, 21 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PC8477B | PLCC-68_THT-Socket | U1 |
| 1 | 24 MHz | Crystal_HC49-U_Vertical | Q1 |
| 1 | Power | PinHeader_1x08_P2.54mm_Vertical | J1 |
| 1 | PWM 7-0 | PinHeader_1x08_P2.54mm_Vertical | J2 |
| 1 | Digital | PinHeader_2x18_P2.54mm_Vertical | J3 |
| 1 | 128 x 64 graphic display | PinSocket_1x20_P2.54mm_Vertical | J4 |
| 1 | classic FDD | PinHeader_2x17_P2.54mm_Vertical | J5 |
| 1 | 2.88 MB FDD | PinHeader_2x17_P2.54mm_Vertical | J6 |
| 1 | 2.88MB FDD ext. power | PinHeader_1x03_P2.54mm_Vertical | J7 |
| 1 | PS/2 keyboard | Mini_DIN6_Female_THT | J8 |
| 1 | 2k2 | Potentiometer_Bourns_3386P_Vertical | P1 |
| 5 | 5.25" / 3.5" | PinHeader_1x03_P2.54mm_Vertical | JP1, JP2, JP3, JP4, JP5 |
| 1 | DENSEL / TG43 | PinHeader_1x03_P2.54mm_Vertical | JP6 |
| 1 | USB / LCD+KBD | PinHeader_1x03_P2.54mm_Vertical | JP7 |
| 1 | RESET | SW_PUSH_6mm | SW1 |
| 2 | 10p | C_Disc_D7.5mm_W2.5mm_P5.00mm | C1, C2 |
| 1 | 100u | CP_Radial_D6.3mm_P2.50mm | C3 |
| 2 | 100n | C_Disc_D7.5mm_W2.5mm_P5.00mm | C4, C5 |
| 1 | 4n7 | C_Disc_D7.5mm_W2.5mm_P5.00mm | C6 |
| 5 | 820 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R3, R5, R7, R9 |
Show 1 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 5 | 150 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R4, R6, R8, R10 |
MegaFDC design files
The KiCad project lives in the climatex/MegaFDC repository on GitHub; these links point at the commit this page was built from.
- LayoutBoards/PC8477/PC8477.kicad_pcb
- SchematicBoards/PC8477/PC8477.kicad_sch
MegaFDC: common questions
How big is the MegaFDC PCB?
The MegaFDC measures 101.8 × 57 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MegaFDC?
35 components, from 21 distinct parts. The full bill of materials is listed on this page.
Where can I download the MegaFDC design files?
From the climatex/MegaFDC repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the MegaFDC design in my own project?
The repository has no license, so all rights stay with climatex. Use it as a reference, and ask the author before reusing the design.