USB 3.2


ASolid USB3.2 Gen-1 controller IS918 is UMC process featuring high performance, low power consumption and support for USB1.1, SB2.0 and USB3.2 Gen-1 specifications.

IS918 supports single-channel flash memory interface and uses BCH automatic error correction code, and supports various SLC, MLC, TLC and QLC flash memory.

●Fully compatible with USB1.1, USB2.0 and USB3.2 Gen-1 standard specifications

  • ■Supports full speed mode
  • ■Supports high speed mode
  • ■Supports super high speed mode
  • ■Supports power saving standby mode

●Flash memory interface support

  • ■Supports 8CEs per channel
  • ■Supports for 3.3V, 1.8V, 1.2V flash memory

●Flash memory support

  • ■Supports error checking correction (ECC), which can automatically correct 7x-bits data errors in 1K bytes
  • ■Supports for SLC, MLC, TLC and QLC flash memory
  • ■Supports flash memory of 4KB/8KB/12KB/16KB/24KB page architecture
  • ■Supports up to 8KB 1/2/4-plane and 16KB 2-plane operation modes
  • ■Supports Toggle Mode flash memory
  • ■Supports ONFI 2.3 flash memory
  • ■Supports for 3D NAND

●Embedded oscillator reduces material overhead
●Low power consumption
●Enhanced ESD design
●Indirect mapping architecture
●Manufacturing tools are ready
●Compliance with USB v3.2 Gen-1 specifications, USB removable storage device category and Bulk-Only transmission
●Support Windows 2000, Windows XP, Vista, Window7, Window8, Window8.1, Window 10, Mac 9.x, Mac OS X and Linux kernel 2.4 working environment
●Customizable production serial number
●Support automated production

USB 2.0


USB 2.0 Flash Disk Controller AS3257H is the USB2.0 Flash Disk controller launched by ASolid Technology Co., Ltd., which utilizes UMC process technology. AS3257H is featured with higher performance and lower power consumption, and supports USB1.1 and UBS2.0. This product is built in with single channel high speed flash interface with BCH error correction code, and supports all kinds of NAND type flash, including TLC, MLC and SLC.

●Fully compatible with USB standard specification 1.1 and 2.0.

  • ■Support Full-speed mode
  • ■Support High-speed mode
  • ■Support Suspend power saving mode

●Flash interface support:

  • ■UP to 8 flash chip selection and 8-bit flash IO access
  • ■Support 3.3V flash

●Flash memory support:

  • ■Support ECC function to correct up to 7x-bits data errors per 1KB data automatically
  • ■Support SLC/MLC/TLC NAND type flash
  • ■Support flash with 2KB/4KB/8KB/16KB page architecture
  • ■Support two-plane operation
  • ■Support Toggle Mode flash
  • ■Support ONFI 2.3 flash

●Embedded crystal offers lower BOM cost
●Low power consumption
●Enhanced ESD design
●Non-Direct remap architecture
●Manufacturing utility ready
●Comply with USB v2.0, USB Mass Storage Class and Bulk-Only Transport
●Support Windows ME, Windows 2000, Windows XP, Vista, Window7, Mac 9.2, Mac OS X with default driver
●Support configurable serial number during mass production
●Support Auto Run feature
●Support writable and read-only mode
●Support partition disk feature
●Support password protection to control drive access
●Support PC Lock by UFD drive


IS918-GA supports Hynix V6 512Gb 128L TLC

IS918-GA supports KIOXIA BiCS5 512Gb 128L TLC

IS918-GA supports Hynix V6 512Gb 128L TLC

ASolid UFD CTL IS918-GA supports WD BiCS4.5 256Gb/512Gb 96L TLC

IS918-GA+YMTC TAS 512Gb 128L TLC

ASolid / Innostor UFD 3.2 solution IS918-GAR supports Micron B47R 512Gb TLC

ASolid IS918M-GA supports YMTC JGS

ASolid IS918M-GA+B37R leads the market

IS918M-GA supports Intel 144L QLC

ASolid UFD solution IS918M provides excellent support

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