SLUFDM512MU1UI-B STEC, SLUFDM512MU1UI-B Datasheet - Page 7

• Manufacturer Part Number: SLUFDM512MU1UI-B
• Manufacturer: STEC
• Type: Flash Diskr

Specifications of SLUFDM512MU1UI-B

• Density: 512MByte
• Operating Supply Voltage (typ): 5V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Package Type: Not Required
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Programmable: Yes
• Lead Free Status / RoHS Status: Compliant

SLUFDMxxx(M/G)U1U(I)-y
Datasheet
3.0 Theory of Operation
3.1
The USB Flash Disk Module uses STEC’s proprietary state-of-the art USB 2.0 controller, combined
with SLC NAND Flash for optimal device reliability. The controller’s firmware supports the latest
NAND flash technology from multiple vendors, and is optimized for the highest performance and
reliability.
The USB Flash Disk Module controller consists of the functional blocks shown in Figure 4 and
described below.
3.1.1 Controller Internal Components
Microcontroller which serves as the hardware backbone for the flash controller algorithm.
USB 2.0 Interface Controller with high speed (480 Mbps) device function. This block interfaces
with the host system via the USB interface.
Flash Interface Controller that serves as the interface to the NAND flash components. It
supports all the major NAND flash memory manufacturers.
Flash Storage Management Algorithm Block is responsible for the flash management,
including wear leveling, bad block management, and Error Detection and Correction.
EDC/ECC block is responsible for on-the-fly error detection and correction.
Sector Buffer for optimized performance.
SRAM for running controller firmware fast and efficient.
ROM for storing controllers boot code.
Block Diagram
61000-03606-115, May 2007
Figure 4: Controller block diagram
USB Flash Disk Module
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