NES TxROM Advanced


Out of stock


Advanced MMC3 board with save capability.

NES TxROM Advanced Board

The NES TxROM Advanced is a homebrew or reproduction board that supports MMC3 mappers (Mapper 4) and supports WRAM with save support.

Component List

MMC3 - AX5202P MMC3 Implementation (INCLUDED)

PRG - 27C010/27C020/29F010/29F020 or compatible (Not Carried)

CHR - 27010/27C020/29F010/29F020 or compatible (Not Carried)


Lockout Chip - AVRCIC (HERE)

C1,C4 - 22uf 6.3 V Capacitor (HERE)

C2,C3,C5 - 0.1uf 50V Capacitor (HERE)

D1,D2 - 200 MA Schottky Diode (HERE)

R1,R2 - 10K Ohm Resistor (HERE)

R3 - 27K Ohm Resistor (Optional) (COMING SOON)

Battery - CR2032 Battery with tabs (Not Carried)

Mapper Compatibility

Verified compatible with TLROM, TGROM, TSROM, TKROM, and TNROM mapper types. Please note that other mappers have not yet been tested.


Build instructions/tutorials aren't available at this time. If you are uncomfortable or new to building your own cartridges please wait for tutorials to become available.

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