Egyszerű a történet.

Az XS2000-ben a SMI2320-as referncia SMI design van, ebben pedig a SMI2321-es.

Viszont ez az XS1000-es USB 3.2 Gen2 x 1, a benne található vezérlő okán.

The SM2321 is a single-chip solution equips with USB 3.2 Gen2 x 1 interface with 10Gb/s bandwidth, with the fully integrated hardware and software solution which features two NAND channels with 16 CEs, providing for high-speed data transfers between a pen drive and a host laptop computer or notebook.
Because it can interface directly to the host without the need for an external bridge chip, it enables manufacturers of pen drives to reduce system size and lower their Bill-Of-Materials (BOM) cost.
The SM2321 delivers peak sequential read and write transfer speeds of 1,050MB/s and 1,000MB/s, with density up to 2TB, while enabling new SSD designs to take full advantage of high-density NAND Flash, including the latest 3D TLC/QLC NAND

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