Someone made a pin-compatible Controller Pak with FRAM that doesn't require a battery. Has layout files too. http://www.qwertymodo.com/hardware-projects/n64/no

Someone made a pin-compatible Controller Pak with FRAM that doesn't require a battery. Has layout files too. http://www.qwertymodo.com/hardware-projects/n64/nonvolatile-nintendo-64-controller-pak http://www.qwertymodo.com/hardware-projects/n64/nonvolatile-...