SONIX SN11083 Datasheet

Confidential

2002/6/26

0.2

SN11083

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 SN11 083 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 faster and easier, but also reduces the cost and increases the reliability.
The SN11083 also provides the capability to boot the PC. Therefore, the system
manufacturers can use it to build a much faster, high capacity, reliable, and portable
system to replace the legacy floppy disk easily.

With so many functions built-in and the high performance, easy to design-in
architecture, SN11083 is an ideal choice for building a portable USB to Flash storage
system.

1

Confidential

2002/6/26

0.2

SN11083

2 Features

l 12 MHz USB 1.1 full-speed compatible.
l USB 1.1 Mass Storage Class compliant
l USB Mass Storage Class Bulk-Only Transpor t 1.0 supported
l USB Mass Storage Class SCSI transparent command set supported
l 12 characters of serial number and up to 28 characters of

Vendor/Product/Revision supported with external EEPROM

l Support NAND-type flash memory, from 4Mbytes to 128 Mbytes
l Real-time ECC correction circuit to ensure the data integrity and accelerate the

access speed for NAND-type flash.
l Built-in SRAM to support logical-to-physical address translation for NAND-type

flash to reduce cost and increase performance and reliability

l Built-in FIFO for upstream and downstream data transfer
l Data transfer rate up to 1.5 MB/s (burst), 1.1 MB/s (read average),
l LED lightening pin available.
l PC boot up capability provided (PC BIOS needs to support USB ZIP boot up)

(version 2 only)

l No Driver needed under Microsoft Windows ME/2000/XP, Mac OS 9.x/10.x
l Driver support Microsoft Windows 98
l Single 3.3V operation
l 48 pin LQFP package.

2

2002/6/26

0.2

SN11083

3 Pin Assignment

Pin# PAD Name Type DriveSpecial Description

1GND PWR Digital ground
2FLD6 DIO 8mA PD Flash data bit 6
3FLD2 DIO 8mA PD Flash data bit 2
4FLD7 DIO 8mA PD Flash data bit 7
5FLD1 DIO 8mA PD Flash data bit 1
6FLD0 DIO 8mA PD Flash data bit 0

7FLWP DO 8mA Flash write protect
8FLRB DI Flash ready/busy
9FLWE DIO 8mA PD Flash write enable

Confidential

10FLRE DIO 8mA PD Flash read enable

11 FLALE DO 8mA Flash address latch enable

12GND PWR Digital ground
13VDD PWR Digital 3.3V
14FLCLE DO 8mA Flash command latch enable
15FLCE DO 8mA Flash chip enable
16NC Not Connected
17NC Not Connected
18NC Not Connected
19LED DO 8mA PD LED lighter
20RSTN DI PU Chip reset
21TEST DI PD Test pin
22NC - - No Connect
23XIN I - - Crystal input or oscillator input
24XOUT O - - Crystal output or no connection
25NC - - No Connect
26NC - - No Connect
27FLPOWER DO 8mA OC Flash power control
28GPIO0 DIO 8mA General Purpose Input/Output 0

3