NES TxROM Advanced (Black)


Advanced MMC3 board with save capability.

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Quantity 100 - 249 250+
Price $6.00 $5.00

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SKU: NES_TxROM_Advanced_black Categories: , ,


NES TxROM Advanced Board (ONLY)

PLEASE NOTE: This listing is for the NES TxROM Advanced Board only, and is only made available by special request. Please contact us.

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 (NOT 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 – 100V 300MA Diode – 1N4148-T50A (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.

Additional information

Weight0.05 lbs
Dimensions4.02 × 3.44 × 0.055 in



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