Shared Projects by HDR

Github Repository

MBC30 Flashcart for 4MB roms

BOM

Changelog:

1.1:

• Rewired WE on the ROM chip to Pin 31 on the cart bus to fix an issue where it would not write to a bank.

1.2:

• Changed the PCB to fit inside Japanese Pokemon Crystal shells

• Added inverted silkscreen to the board to make it look more like the original

1.3:

• The pinout for the MBC30 listed online is wrong, thanks to Alex over at InsideGadgets for providing a fixed MBC30 pinout.

1.3.1:

• Moved C2 to make it easier to close the shell

1.4:

• Switched cart bus footprint to djedditt’s replica of an original one

• Replaced the flash chip footprint with a TSOP-40 footprint.

• Redid the ground plane by hand, it should now look much better.

• Moved the battery receptacle footprint 0.5mm to the left.

• Renamed Y1 to X1

• Removed JLCJLCJLC marking for OSHPark project.

1.4.1:

• Fixed missing trace for Ram_CS

1.4.2:

• Fixed a symbol kicad “rescued” causing the pinout to be backwards (this put the chip direction indicator in the wrong corner)

IMPORTANT: Order at 0.8mm

See github for more details

Released under the CC BY-NC-SA 4.0 License

Order as Flex PCB

Please keep in mind that these are prototypes, i can’t guarantee that they will be as reliable as CR1616 cells with welded tabs, order and use at your own risk, if you want to make sure the battery stays in place you can place a 10-12mm round sticker on top of the retainer & battery (a thin fabric sticker meant for furniture can be used if the retainer isn’t sitting flat)

More Info on Github

Placebo

Fits Game Boy Advance (Non SP)

BOM: