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No mention of TransFlash (TF), nor "Super Digital" (SD without the DRM)? The history is certainly interesting and I have done a bit of research in this area to
by userbinator 2y ago
No mention of TransFlash (TF), nor "Super Digital" (SD without the DRM)?
The history is certainly interesting and I have done a bit of research in this area too. Also, those "secret" specs can, thanks to the Eastern part of the Internet, be found relatively easily these days.
Also noteworthy in the development of solid-state mass storage is that the original small-block NAND flash command set came from Toshiba's SmartMedia (or perhaps it was the other way around.) Those are interesting in that they're raw SLC flash needing no wear leveling, with TBW ratings that surpass small and medium-size SSDs these days, despite having several orders of magnitude less capacity.
- rescbr 2y agoOh, TransFlash, the code-name for SD that every Shanzhai manufacturer used. Why? I suspect they label SD as TF to avoid paying for licensing the trademark. The same thing happens with HDMI - usually they simply label those ports as HD.
- yjftsjthsd-h 2y agoIt certainly could also be trademarks, but I heard that in at least some cases it's because TF only covers the storage part of the spec, whereas the full "SD" spec includes using it as an interface to non-storage stuff... although actually skimming https://en.wikipedia.org/wiki/SD_card#SDIO_cards https://en.wikipedia.org/wiki/SD_card#SDIO_cards now, I'm less convinced that that's a hard requirement in which case I'd agree that it's 100% trademarks instead of just 90%;)
- userbinator 2y agoCould be trademark, but it's more likely an easy way to say "microSD" (which is what TF refers to.) TransFlash was actually SanDisk's trademark for microSD.
- deleted 2y ago[deleted]
- Dwedit 2y agoOr even the "Super Density Disc", where the SD card logo originated from? (hence why there's an optical disc in the SD logo)