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STMicroelectronics Electronic Components Datasheet

ST72682 Datasheet

USB 2.0 high-speed Flash drive controller

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ST72682
USB 2.0 high-speed Flash drive controller
Features
USB 2.0 interface compatible with mass
storage device class
– Integrated USB 2.0 PHY
– Supports USB high speed and full speed
– Suspend and Resume operations
LQFP64 10x10
Mass storage controller interface (MSCI)
– Supports all types of NAND Flash devices
including ST, Hynix, Samsung, Toshiba,
Renesas, and Micron
– Reed-Solomon encoder/decoder: on-the-
fly correction (4 bytes of a 512-byte block)
– Flash identification support
– Up to 21 Mbyte/s for read and 11 Mbyte/s
for write operations in dual channel
Embedded ST7 8-bit MCU
Supply management
– 3.3V operation
– Integrated 3.3 -1.8 V voltage regulator
USB 2.0 low-power device compliant
– Less than 100 mA during write operation
with two NAND Flash devices
– Less than 500 µA in suspend mode
Clock management
– Integrated PLL for generating core and
USB 2.0 clock sources using external
12 MHz crystal
Table 1. Device summary
AutoRun CDROM partition support
Data protection
– Write protect switch control
– Public/Private partitions support
Bootability support (HDD mode)
Production tool device configurability:
– USB vendor ID/product ID (VID/PID), serial
number and USB strings with foreign
language support
– SCSI strings
– One or two LED outputs
– Adjustable NAND Flash bus frequency to
reach highest performance
Code update in the NAND Flash
LQFP64 10x10 lead-free package
Development support
– Complete reference design including
schematics, BOM and gerber files
Supports Windows (Vista, XP, 2000, ME),
Linux and MacOS. Drivers available for
Windows 98 SE
Features
Orderable part numbers
ST72682/R20
ST72682/R21
USB interface
Number of NAND devices supported
Read/write speed
Operating supply
Operating Temperature
Package
USB 2.0 high speed
up to 8
21MBps/11MBps
3.0 to 3.6 V
0°C to +70°C
LQFP64 10x10 / die form
August 2007
Rev 2
1/36
www.st.com
1


STMicroelectronics Electronic Components Datasheet

ST72682 Datasheet

USB 2.0 high-speed Flash drive controller

No Preview Available !

Contents
Contents
www.DataSShTe7e2t46U8.c2om
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Application schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 NAND Flash memory interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1 NAND Flash error correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1.1 Hardware error correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1.2 Firmware error management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Bad block management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2.1 Bad Block identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2.2 Bad block replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2.3 Late Fail block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.3 Wear levelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4 NAND Flash interface configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5 Mass storage implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1 USB characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2 BOT/SCSI implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2.1 BOT specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2.2 SCSI specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2.3 Bootability specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3 Multi-LUN device characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3.1 Public drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3.2 Private drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3.3 Additional drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3.4 CD-ROM considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.4 Mass storage interface configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6 Human interface implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.1 LED behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.2 Read-only switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2/36


Part Number ST72682
Description USB 2.0 high-speed Flash drive controller
Maker STMicroelectronics
Total Page 30 Pages
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