SN11083

SN11083 2002/6/26 0.2 Confidential USB to Flash Interface Controller, Mass Storage Class Compliant 1 General Description SN11083 is a high-performance integrated circuit to bridge USB 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. To help the system manufacturers to build high quality, low cost USB storage systems, several special features are implemented. The embedded translation table helps the system makers to design a high performance NAND type flash device but still keeps the cost low. The proprietary randomization algorithm effectively extends the lifetime of the flash memory, ensuring the robustness of the system. The real time ECC correction keeps the data integrity while still maintains the high data transfer rate. The external serial EEPROM provides the possibility to customize the USB identity for each product. The OEM makers could make products for different customers by just putting the vendor/product ID and names in the EEPROM but still keep other things the same. The serial number can help the system manufacturers to track down every single device they made even when the design and the PID/VID are all the same. The USB Mass Storage Class compliance capability of SN11083 makes it a truly “plug-and-play” device without vendor drivers needed under the OS like Windows 2000/ME/XP and Mac OS 9/10. This feature not only makes the system developing faste...