NES TxROM Advanced


In stock


Advanced MMC3 board with save capability.

Customize NES TxROM Advanced
AX5202P (MMC3)   + $6.00
NES TxROM Advanced (Black)   + $7.00

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NES TxROM Advanced
NES TxROM Advanced

In stock



    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 16V Capacitor (HERE)

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

    C6 - 1000pf Capacitor (Optional*) (COMING SOON)

    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.

    Please note that is only for some games that have a hard time with newer SRAMs (Faster then 120ns). If you are using older SRAM or your game doesn't have an issue then it is not needed.


    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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