After reading this post http://forums.benheck.com/viewtopic.php?f=5&t=37099
, I wanted to make one for myself, but rather than creating an adapter to solder the TSOP chip onto, I'm thinking of just designing a PCB and building the whole card from scratch. The only thing is, I have to order PCB's in multiples of 10, and I'll never need that many, so I'm wondering if there's enough interest for me to order a batch and build them and if people wanted to buy the rest from me. Here's the plan:
1Mbit (4x) capacity (that's 4x the original, not 4Mbit) with 4-position bank select switch
Nonvolatile F-RAM does not require a battery, and will never lose your saves
Board comes fully assembled, no shell. Designed to fit inside of the official memory pak, you'll need to dremel a slot for the switch but beyond that it's just ready to use.
If you're interested, let me know and I'll order parts. I'll probably order the boards regardless, but if I don't get enough interest, I won't order more F-RAM chips.Update:
1x boards will be ready to ship shortly after New Years. I should have 4x prototypes by then as well, and as soon as I have them tested, they will be ready to sell and ship. If you're interested, post here and I'll update you as soon as they're ready. Also, with the latest 64Drive update, I am now currently able to offer card cloning as well. I'd be willing to do it for free with the purchase of any card, you just have to pay to ship it to me and then cover any additional shipping for returning it (which shouldn't be much, if anything at all considering they only weigh a couple ounces a piece...Update 2:
It has become very difficult to acquire Ramtron parts, and prices have gone up a bit, most likely due to the fact that Ramtron just got bought out by Cypress Semiconductor. I've managed to get my hands on enough chips for the 1x boards, albeit at a higher price than I'd hoped. This won't affect my sale price, it's just frustrating. I hope Cypress gets their act together and gets these chips back into production quickly. As for the 4x chips, those are significantly more expensive than I had previously been quoted, so for now I'm just getting 2 of them for prototypes. I'll keep this thread updated, and hopefully the prices will come back down once this whole buyout has settled and the chips come back into stock.
1x card: $30
4x card: $40