Swissbit – New SD and Micro SD memory cards in pSLC technology

The Swissbit S-46 SD memory cards with capacity from 2 GB to 64 GB and S-45u Micro SD memory cards from 2 GB up to 16 GB, work in a storage mode where only a single bit is used per MLC cell. This pSLC mode can be operated much faster than standard MLC mode and increases the permitted program-erase (PE) cycles of MLC from the specified 3k to 20k. Under equal conditions this increases the endurance by a factor of 6.6 at doubled bit cost. In addition the sub-page based FTL allows the firmware to reduce the write amplification to very low values...

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