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MBC30 Flashcart Crystal Clear Edition Rev 1.4.2

author: HDR
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2 layer board of 2.01 x 2.37 inches (51.0 x 60.3 mm)
Uploaded: August 25, 2020
Shared: August 25, 2020
Total Price: $23.80

Github Repository

MBC30 Flashcart for 4MB roms

BOM

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
RAM FM18W08 256kbit FRAM
R1 ERJ-PA3J334V 330K Ω Resistor
R2 ERJ-PA3J103V 10K Ω Resistor
R3 ERJ-PA3J102V 1K Ω Resistor
MBC30 MBC30 Get from real cartridge
U1 BA6129AF Buy or get from real cartridge
U2 74LVC1G332GV,125 3-input OR gate TSOP-6
ROM AM29F016 (2MB), AM29F032 (4MB) or MBM29F033C (4MB) 2MB or 4MB Rom Chip TSOP-48 or TSOP-40
X1 R26-32.768-12.5-10PPM R26 12.5pF 32.768 kHz Crystal

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)

Github Repository

MBC30 Flashcart for 4MB roms

BOM

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
RAM FM18W08 256kbit FRAM
R1 ERJ-PA3J334V 330K Ω Resistor
R2 ERJ-PA3J103V 10K Ω Resistor
R3 ERJ-PA3J102V 1K Ω Resistor
MBC30 MBC30 Get from real cartridge
U1 BA6129AF Buy or get from real cartridge
U2 74LVC1G332GV,125 3-input OR gate TSOP-6
ROM AM29F016 (2MB), AM29F032 (4MB) or MBM29F033C (4MB) 2MB or 4MB Rom Chip TSOP-48 or TSOP-40
X1 R26-32.768-12.5-10PPM R26 12.5pF 32.768 kHz Crystal

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)
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      Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended. OSH Park cannot place any guarantees about the functionality or correctness of the design.
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