SN11085

USB 1.1 full-speed compatible
 USB 1.1 Mass Storage Class compliant
USB Mass Storage Class Bulk-Only Transport 1.0 supported
 USB Mass Storage Class SCSI transparent command set supported
 Customized VID, PID, serial number, and 28 characters of Vendor/Product/Revision string supported with external EEPROM
 EEPROM in system programmable (ISP) capability
 28 characters of Vendor/Product/Revision string can be stored in flash for external EEPROM cost reduction
 Support Samsung and Toshiba NAND-type flash memory, from 4Mbytes to 128 Mbytes
 Real-time ECC correction circuit for data integrity and memory access speed acceleration
 Embedded SRAM for logical-to-physical address translation of NAND-type flash
 Up to 8 NAND type flash memories are supported
Embedded FIFO for upstream and downstream data transfer
 Data transfer rate up to 1.5 MB/s (burst), 1.1 MB/s (read average),
LED indicator pin
 PC boot up capability (host BIOS with USB ZIP boot up support is necessary)
Flash disk security function provided, up to 12 characters of password for high sensitive data protection from illegally access
ROM-type flash disk capability provided (permanent write protect)
No Driver needed under Microsoft Windows ME/2000/XP, Mac OS 8.6/9.x/10.x
Sonix Driver for Microsoft Windows 98
Single 3.3V operation
48 pin LQFP package

SN11085 is a high-performance integrated circuit to bridge USB 1.1 interface and Flash memory. SN11085 provides a flexible and cost efficient single chip solution for external storage applications that intend to utilize the convenience of USB. Several special features are implemented for an efficient and low cost USB storage device solution. The embedded translation table eliminates external SRAM cost. The Sonix proprietary randomization algorithm effectively extends the lifetime of flash memory and ensures the product robustness. Embedded real time ECC correction keeps the data integrity while maintains the high data transfer rate.

The external serial EEPROM provides customized USB vendor ID, product ID, and string flexibility. In addition, the EEPROM can contain a serial number which helps the system manufacturers to track down every single device they made even the design and PID/VID are all the same. SN11085 also provides in system programming (ISP) capability of the EEPROM. Products can be assembled without programming the EEPROM in advance,which saves both the production cost and time. Device and manufacturer's string can be saved in the flash instead of the external EEPROM for further total cost reduction.

The USB Mass Storage Class compliance capability of SN11085 makes it a truly "plug-and-play" device without vendor drivers under Windows 2000/ME/XP and Mac OS 9/10. SN11085 provides PC boot up and data security function, which makes it an ideal replacement for the legacy floppy disk.

With many of its advanced features and high performance, SN11085 is an ideal choice for building a portable USB to flash storage system.