SN11085 Datasheet, PDF (1/16 Pages) SONiX Technology Company – SN11085 USB1.1 Flash memory Controller

SN11085
2002/12/01 ver 0.97
SN11085 USB1.1 Flash memory Controller
2002/12/01
ver 0.97
1 General Description
SN11085 is a high-performance integrated circuit to bridge USB 1.1 interface and Flash
memory. It 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.
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