Saturday, January 14th 2012

RunCore Displays Single-Chip SSDs

RunCore showed off its engineering potential in four "single-chip" solid-state drives (SSDs). If we're playing semantics here, almost every USB flash drive in the market these days is a "single chip SSD", but in context of these drives, "single chip" refers to a component that combines MLC NAND flash and a SATA interface controller into a single package. The number of NAND flash channels internally is not known, but RunCore thinks these chips should offer good performance in the value segment.

The blue PCBs in the first picture depict single-chip SSDs in three main client form-factors: 2.5-inch SATA, 1.8-inch SATA, and mSATA. As you can see, there's just one main chip, no controller, no cache DRAM, nothing else, except power-conditioning components and firmware ROM chips on the back side of the PCB.
The device with the red-colored PCB is what RunCore is referring to as R-Drive. It uses four of these single-chip SSDs as subunits on a single PCB, sharing a single SATA power source, but without a localized RAID logic, the subunits are wired out as individual SATA drives. The onus is on the user to connect those drives to a motherboard supporting RAID, or run them as individual drives in AHCI mode, whichever way the user prefers.
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