MBC3 Flashcart based on retroreboot's cartridge that uses 0603 components (while based on the RetroReboot carts, these are completely redesigned from the ground up in kicad)
If you want a 4MB cart check out my new MBC30 flashcart repo
Version 1.5 and beyond makes use of djedditt's cartridge connector footprint
OSHPark:
Make sure to select the "2 oz copper, 0.8mm thickness" option before checkout
JLCPCB:
Upload gerbers(.zip files) to JLCPCB
Make sure you order with the following settings:
PCB Thickness: 0.8
PCB Color: Any
Surface Finish: ENIG-RoHS
Gold Fingers: Yes (45° chamfered border)
Castellated Holes: No
Check out the Interactive BOM for an interactive website that lets you keep track of where everything goes.
| Reference | Part Number | Description |
|---|---|---|
| B1 | BK-6219-TR | CR2025 Coin Cell Retainer |
| C1 | 06033C104KAT4A | 0.1uF Capacitor |
| C2 | 06033C104KAT4A | 0.1uF Capacitor |
| C3 | 06033C104KAT4A | 0.1uF Capacitor |
| C4 | CL10C150JB8NNNC | 15pF Capacitor |
| C5 | CL10C150JB8NNNC | 15pF Capacitor |
| C6 | 06033C104KAT4A | 0.1uF Capacitor |
| C7 | 06033C104KAT4A | 0.1uF Capacitor |
| FM18W08 | FM18W08 | 256kbit FRAM |
| R1 | ERJ-PA3J334V | 330K Ω Resistor |
| R2 | ERJ-PA3J103V | 10K Ω Resistor |
| R3 | ERJ-PA3J102V | 1K Ω Resistor |
| MBC3 | MBC3 | Get from real cartridge |
| U2 | BA6129AF | Buy or get from real cartridge |
| U3 | 74LVC1G332GV,125 | 3-input OR gate TSOP-6 |
| AM29F0XX | AM29F016 | TSOP-48 |
| Y1 | R26-32.768-12.5-10PPM | R26 12.5pF 32.768 kHz Crystal |
1.2:
- Fixed missing traces
1.3:
- Fixed some trace issues with Y1
- Rerouted the pcb entirely
1.4:
- Fixed a short between A16 and VCC
1.4.1:
- Changed AM29F016 footprint to make chip alignment easier
- Cleaned up traces (visual)
