The is a NAND flash memory controller commonly used in USB 2.0 flash drives from manufacturers like Kingston and Toshiba .
This block handles the communication protocol with the host PC. It manages the enumeration process (identifying the device to the computer), handles the transfer of bulk data, and manages power states (suspend/resume). Solid State Systems Sss6698-bb
The is a USB 3.0 NAND flash memory controller developed by Solid State Systems Co., Ltd. (commonly abbreviated as SSS or 3S), a Taiwanese company known for producing cost-effective and widely used USB flash drive controllers. This chip is part of the 669x family, succeeding earlier models like the SSS6697 and SSS6695, and is designed to support modern TLC (Triple-Level Cell) and 3D NAND flash memories with higher capacities and improved performance over USB 3.0 interfaces. Solid State Systems SSS6698-BB The is a NAND