An MBC3 RTC flash cart that supports a 4MB ROMDesigned by insideGadgets in Australia
Please allow for some delays due to COVID-19. AusPost tracked shipments may experience an additional 2-3 weeks delay and may not be available for all countries.
Usually MBC3 chips only allow for 2MB of flash however by adding a special logic chip, we can extend the flash size to 4MB so you can future proof your RTC cart. There is an MBC30 chip which does s...Read More…
Usually MBC3 chips only allow for 2MB of flash however by adding a special logic chip, we can extend the flash size to 4MB so you can future proof your RTC cart. There is an MBC30 chip which does support 4MB but original carts usually go for $12-15 and aren’t very common where as MBC3 carts go for $1-3 and are everywhere.
Re-flashable with any flasher like GBxCart RW that supports the MBM29F033C chip via the audio pin method. Uses FRAM to keep the save even when the battery runs out.
The power consumption of MBC3 when powered from the battery appears to be around 2.3uA so a CR2025 should last 5-7 years.
The PCB finish is ENIG, Gold fingers (on the edge connector) with a 45 degree bevel to give the maximum life for insertion/removal of the cartridge.
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