Document
www.DataSheet4U.com
mDOC H3
Embedded Flash Drive (EFD) featuring Embedded TrueFFS® Flash Management Software
Data Sheet, November 2007
HIGHLIGHTS
mDOC H3 is an Embedded Flash Drive (EFD) designed for mobile handsets and consumer electronics devices. mDOC H3 is the new generation of SanDisk’s successful mDOC product family, enabling tens of millions of handsets and other mobile devices since the year 2000. mDOC H3 is a hybrid device combining an embedded thin flash controller and standard flash memory. In addition to the high reliability and high system performance offered by the current mDOC family of products, mDOC H3 offers plug-and-play integration, support for multiple NAND technologies and more features such as advanced power management schemes. mDOC H3 uses advanced Multi-Level Cell (MLC) and binary (SLC) NAND flash technologies, enhanced by SanDisk’s proprietary TrueFFS embedded flash management software running as firmware on the flash controller. The breakthrough in performance, size, cost and design makes mDOC H3 the ideal solution for mobile handsets and consumer electronics manufacturers who require easy integration, fast time to market, high-capacity, small form factor, high-performance and most importantly, highly reliable storage. mDOC H3 enables multimedia driven applications such as music, photo, video, TV, GPS, games, email, office and other applications.
EMBEDDED TRUEFFS
SanDisk’s proprietary TrueFFS flash management software is now embedded within the mDOC H3 device and runs as firmware from the flash controller.
Legacy mDOC Architecture
Host Flash Controller
+
+
+
Flash
mDOC H3 Architecture
Host
+
+
Flash Controller
+
Flash
Figure 1: TrueFFS - Legacy mDOC vs. mDOC H3 Architecture
Embedded TrueFFS enables mDOC H3 to fully emulate a hard disk to the host processor,
© 2007 SanDisk® Corporation 1 92-DS-1205-10
www.DataSheet4U.com
Rev. 1.2 mDOC H3 EFD Featuring Embedded TrueFFS Data Sheet
enabling read/write operations that are identical to a standard, sector-based hard drive. In addition, Embedded TrueFFS employs patented methods, such as virtual mapping, dynamic and static wear-leveling, and automatic block management to ensure high data reliability and maximize flash life expectancy. Furthermore, it provides performance enhancements such as multi-plane operations, DMA support, Burst operation and Dual Data RAM buffering. mDOC H3 extended features are enabled by a small driver that runs on the host side, called DOC Driver. DOC Driver provides the host OS with a standard Block Device interface. The combination of Embedded TrueFFS and DOC Driver enables a practically Plug & Play integration in the system.
MULTIPLE FLASH SUPPORT
mDOC H3 with Embedded TrueFFS enables access to advanced binary SLC NAND and MLC NAND flash technology, making mDOC H3 the only multi-sourced and multitechnology EFD. Embedded TrueFFS overcomes SLC and MLC NAND-related error patterns by using a robust error detection and correction (EDC/EC.