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(Eng) SATA – US2258XT

General Description

US2258XT SSD SATA 6Gbps Controller is designed for Solid-State Drive (SSD) related NAND Flash storage devices with full support for the latest high-speed and large-capacity NAND Flash requirements, including Toggle NAND and ONFI NAND. By leveraging ASolid’s optimized wear-leveling algorithm and Low Density Parity Check (LDPC) of Error Correction Code (ECC) circuitry, the US2258XT provides superior wear-leveling, buffer management and data reading reliability performances, and effectively lengthen the flash lifespan by acting as a search engine for the neighboring flash units. Also, the design of 16-pins on the US2258XT can be used for independent programming of input/output applications, as well as the default controller settings such as DRAM frequency, flash type and SATA speed settings. These advanced designs have made US2258XT a competitive SSD controller solution to simplify the migration to production process and hence shorten design-to-market cycles for better profitability.


  • Host interface:
    • AC coupling for transmitter and receiver
    • Compatible with SATA 1.5Gbps, 3Gbps and 6Gbps interface
    • Embedded BIST function for SATA PHY for low cost mass production
    • Self-calibrated and embedded termination resistor at transmitter
    • Support power management
  • Flash interface support:
    • Built-in 2-channel NAND flash interface controller
    • UP to 16 flash chip selection and 8-bit flash IO access
  • NAND flash support:
    • Support Low Density Parity Check (LDPC) code
    • Support 2D and 3D MLC/TLC NAND type flash
    • Support flash with 8KB/16KB page architecture
    • Support four-plane operation
    • Support Toggle Mode flash
    • Support ONFI3.0/ONFI2.3/ONFI2.2/ONFI2.1/ONFI2.0 flash
  • Operating temperature
    • Commercial grade: 0℃ ~ 70℃
    • Industrial grade: -40℃ ~ +80℃
  • Package
    • Support LFBGA (9 x 9 mm) 169-ball package
    • Lead-free and RoHS compliant