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SN11085
2002/12/01
ver 0.97
SN11085 USB1.1 Flash memory Controller
2002/12/01 ver 0.97
1 General Description
SN11085 is a high-performance integrated circuit to bridge USB 1.1 interface 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. Several special features are implemented for an efficient and low cost USB storage device solution. The embedded translation table eliminates external SRAM cost. The Sonix proprietary randomization algorithm effectively extends the lifetime of flash memory and ensures the product robustness. Embedded real time ECC correction keeps the data integrity while maintains the high data transfer rate. The external serial EEPROM provides customized USB vendor ID, product ID, and string flexibility. In addition, the EEPROM can contain a serial number which helps the system manufacturers to track down every single device they made even the design and PID/VID are all the same. SN11085 also provides in system programming (ISP) capability of the EEPROM. Products can be assembled without programming the EEPROM in advance, which saves both the production cost and time. Device and manufacturer's string can be saved in the flash instead of the external EEPROM for further total cost reduction. The USB Mass Storage Class compliance capability of SN11085 makes it a truly "plug-and-play" device without vendor drivers under Windows 2000/ME/XP and Mac OS 9/10. SN11085 provides PC boot up and data security function, which makes it an ideal replacement for the legacy floppy disk. With many of its advanced features and high performance, SN11085 is an ideal choice for building a portable USB to flash storage system.
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2 Features
USB 1.1 full-speed compatible USB 1.1 Mass Storage Class compliant USB Mass Storage Class Bulk-Only Transport 1.0 supported USB Mass Storage Class SCSI transparent command set supported Customized VID, PID, serial number, and 28 characters of Vendor/Product/Revision string supported with external EEPROM EEPROM in system programmable (ISP) capability 28 characters of Vendor/Product/Revision string can be stored in flash for external EEPROM cost reduction Support Samsung and Toshiba NAND-type flash memory, from 4Mbytes to 128 Mbytes Real-time ECC correction circuit for data integrity and memory access speed acceleration Embedded SRAM for logical-to-physical address translation of NAND-type flash Up to 8 NAND type flash memories are supported Embedded FIFO for upstream and downstream data transfer Data transfer rate up to 1.5 MB/s (burst), 1.1 MB/s (read average), LED indicator pin PC boot up capability (host BIOS with USB ZIP boot up support is necessary) Flash disk security function provided, up to 12 characters of password for high sensitive data protection from illegally access ROM-type flash disk capability provided (permanent write protect) No Driver needed under Microsoft Windows ME/2000/XP, Mac OS 8.6/9.x/10.x Sonix Driver for Microsoft Windows 98 Single 3.3V operation 48 pin LQFP package
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3 Pin Assignment
FLWPSW2
FLPOWER
ROMDO
ROMCS
ROMSK
ROMDI
GPIO0
GND
VDD
NC
NC
AVDD AVSS DPLUS DMINUS FLCE8 FLCE6 FLCE4 FLCE2 FLD4 FLD5 FLD3 VDD
35
30
NC
25
XOUT XIN NC
40 20
TEST RSTN LED1 FLCE7 FLCE5
45 15
FLCE3 FLCE1 FLCLE VDD
1
FLD6 FLD2 FLD7 GND
5
FLWP FLWE FLRB FLD1 FLD0
10
FLALE FLRE GND
Table 1 SN11085 pin list # pin name 1 GND 2 FLD6 3 FLD2 4 FLD7 5 FLD1 6 FLD0 7 FLWP 8 FLRB 9 FLWE 10 FLRE 11 FLALE type drive special description PWR DIO 8mA PD DIO 8mA PD DIO 8mA PD DIO 8mA PD DIO 8mA PD DO 8mA DI DIO 8mA PD DIO 8mA PD DO 8mA Digital ground Flash memory I/O port bit 6 Flash memory I/O port bit 2 Flash memory I/O port bit 7 Flash memory I/O port bit 1 Flash memory I/O port bit 0 Flash memory write protect Flash memory ready/busy Flash memory write enable Flash memory read enable Flash memory address latch enable
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SN11085
12 GND 13 VDD 14 FLCLE 15 FLCE1 16 FLCE3 17 FLCE5 18 FLCE7 19 LED1 20 RSTN 21 TEST 22 NC 23 XIN 24 XOUT 25 NC 26 NC PWR PWR DO 8mA DO 8mA DO 8mA DO 8mA DO 8mA DIO 8mA PD DI DI I O PU PD Digital ground Digital 3.3V
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Flash memory command latch enable Flash memory chip enable 1 Flash memory chip enable 3 Flash memory chip enable 5 Flash memory chip enable 7 LED1 lighter Chip reset, connected to external RC circuit Test pin, NC in normal operation No Connect Crystal input or oscillator input Crystal output or no connection No Connect No Connect Flash power control Normal mode - output L Power down mode - open collector, pull up externally General Purpose Input/Output for internal test Always pull up for normal operation Chip select for external EEPROM Digital ground Digital 3.3V Clock for external serial EEPROM Serial data to external EEPROM Serial data from external EEPROM, pull up externally if no EEPROM is connected PU No Connect Flash write protect switch Analog 3.3V Analog ground USB D+ signal USB D- signal Flash memory chip enable 8
4
27 FLPOWER DO 8mA OC
28 GPIO0 29 ROMCS 30 GND 31 VDD 32 ROMSK 33 ROMDI 34 ROMDO 35 NC 37 AVDD 38 AVSS 39 DPLUS 41 FLCE8
DIO 8mA DO 4mA PWR PWR DO 4mA DO 4mA DO 4mA PWR PWR AIO DO 8mA -
36 FLWPSW2 DI
40 DMINUS AIO -
SN11085
42 FLCE6 43 FLCE4 44 FLCE2 45 FLD4 46 FLD5 47 FLD3 48 VDD
Note:
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DO 8mA DO 8mA DO 8mA DIO 8mA PD DIO 8mA PD DIO 8mA PD P -
Flash memory chip enable 6 Flash memory chip enable 4 Flash memory chip enable 2 Flash memory I/O port bit 4 Flash memory I/O port bit 5 Flash memory I/O port bit 3 Digital 3.3V
1. P: power pin; AI: analog input pin, AIO: analog input/output pin; DI: digital input pin; DO: digital output pin; DIO: digital input/output pin. 2. TTL: TTL compatible input pin; PD: pull down; PU: pull up. 3. All pads are Schmitt triggered and with slew rate control
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4 Block diagram
FIFO
USB interface logics
MUX
flash memory interface logics
SRAM
SRAM
CPU
ROM
5 Functional description
5.1 flash memory connection
Up to 8 NAND type flash memories from Samsung or Toshiba can be connected to SN11085, which automatically detects the number of flash memory and set up the related translation table upon power on. All flash memory shares the same I/O data pins and control pins except chip enable. Every flash memory must have its own independent chip enable control signal path (FLCE 1 to FLCE8). All flash memories connected to SN11085 must be of the same capacity, and it is suggested to connect
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them with concatenated ascending order from FLCE1 to FLCE8. There is no special rule for the number of flash memory. (e.g. not necessarily to be the multiples of 2 or 4).
5.2
EEPROM format
An optional 93C46 EEPROM can be connected to SN11085 to override the default USB vendor ID and product ID. In addition, strings for vendor name and product name; and serial number (defined in mass storage device class) can be customized with this EEPROM content. It should be noted that the VID and PID values cannot be set to 0x0000 or 0xFFFF. If 93C46 EEPROM is not detected by SN11085 after power on, default USB vendor ID (hex 0C45) and product ID (hex 1060) are returned to the host. In such case, ROMDO must be pulled high. (ROMDO pull high - no serial number, PID = hex 1060; ROMDO pulled low - with serial number, PID = hex 1030, default serial number = 0). Default string will be returned unless this information is replaced by the setting in flash memory. Writing string into the flash memory space is done by Sonix mass production tool software. Table 2
Offset 0 1 2 3 4 5~8 9 ~ 16 17 ~ 18 VID PID Word Word By customer USB Vendor ID By customer USB Product ID (all 0s or all 1s are not allowed) By customer USB Mass Storage Serial Number nibble 1 to 4 By customer USB Mass Storage Serial Number nibble 5 to 8 By customer USB Mass Storage Serial Number nibble 9 to 12 By customer The name of the manufacturer in ASCII format By customer The name of the product in ASCII format By customer
EEPROM data format
length Value Description
Address Field
Serial Number 1 ~ 4 Word Serial Number 5 ~ 8 Word Serial Number 9 ~ 12 Word Vendor Name Product Name Firmware version 8 bytes 16 bytes 2 bytes
The serial number format in the Mass Storage Class device descriptor is described in section 5.1.1.1 of the spec. If an external EEPROM is used, the following table
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defines the relationship between the EEPROM value and the USB serial number string. If no EEPROM is connected, ROMDO must be pulled high to set "no serial number". Table 3 USB serial number data format EEPROM nibble 0 through 9 A through F USB Serial Number String 0030H through 0039H 0041H through 0046H ASCII "0" through "9" "A" through "F"
Value of the lowest nibble (nibble 12) of the serial number is limited from 0 to 7. If the MSB of the lowest nibble (nibble 12) is 1, the serial number feature will be disabled and no serial number will be shown in the USB descriptor. For a USB Mass Storage Class compliant device, the name of the manufacturer and product can be shown in the device manager of the OS (use Windows as an example) to distinguish products of the same type. The default vendor string of the SN11085 is "USB NAND". The default product string is "FLASH DISK". Therefore, the Windows will show "USB NAND FLASH DISK" when the default string is used. If the system manufacturers need strings other than default ones, they can put the strings they want in the EEPROM's word 5 to 16, as shown in the table of first page. 5.3 software support
Sonix provides the following softwares to customers 1) Security driver for Win98/2000/Me/XP; boot up utility is included for Win98/Me 2) Mass production tool which provides the following function i) Flash memory format ii) File copy/compare for data validation iii) Copying files into the flash memory which are to be delivered with the flash disk iv) ISP of 93C46 v) Copying USB string into flash memory for customization Security reset tool is only released to the manufacturers but not end users. The Security reset tool will need a dedicated username and password to activate.
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6 Timing 6.1 EEPROM Interface
ROMCS ROMSK
fsk
ROMDI
ROMDO (read)
ROMDO (program)
Status Valid
6.2
USB Interface
tf tr
DPLUS/ DMINUS
7 Operating rating and electrical characteristics
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SN11085
6.1 Absolute maximum rating Table 4
symbol Dvmin Dvmax Avmin Avmax Dvinout Avinout Tstg ESD (HBM) parameter min digital supply voltage max digital supply voltage min analog supply voltage max analog supply voltage voltage on any digital input or output pin voltage on any analog input or output pin storage temperature range ESD human body mode C=100pF, R=1.5K ESD (MM) Ioff Ilatch ESD machine mode leakage current minimum latch up current
200 10 Value DGND - 0.3
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unit V V V V V V
0
DGND + 4.6 AGND - 0.3 AGND + 4.6 DGND -0.3 to 5.5 AGND -0.3 to Avdd + 0.3 -40 to +125 5000
C
V
V uA mA
100
6.2 Operation conditions Table 5
symbol DVdd Avdd TA TJ parameter digital supply voltage analog supply voltage operating ambient temperature range operating junction temperature range value +3 to +3.6 +3 to +3.6 0 to 70 0 to 115 unit V V
0
C C
0
6.3 DC electrical characteristics Table 6
symbol parameter test condition value 10 unit
SN11085
VDI VCM VSE VIH VIL VOH VOL IIL IIH IDD Isuspend USB differential input sensitivity USB differential common mode range USB single ended receiver threshold high level input voltage low level input voltage high level output voltage low level output voltage low level input current high level input current input supply current supply current in suspend IOH = -4 mA IOL= 4 mA VI = 0 V VI = 3.6 V | (D+) - (D-) | 0.2 (min) Included range VDI 0.8 (min) 2.5 (max) 0.8 (min) 2.0 (max) 2.0 (min) 0.8 (max) 2.3 (min) 0.5 (max)
2002/12/01
ver 0.97 V V V V V V V
RSTN pin : - 50.0 (max) A the other pins : - 3.0 (max) 3.0 (max) 20 (max) 20 (max) A mA A
6.4 AC electrical characteristics 6.4.1 USB transceiver signal (full speed mode) Table 7
symbol Tr Tf Trfm Vo(crs) parameter
transition rise time for DP or DM transition fall time for DP or DM
test condition
min 4 4
max 20 20 110 2.0
unit ns ns % V
rise / fall time matching signal crossover voltage
(Tr / Tf ) * 100
90 1.3
6.4.2 Operation clocks Table 8
symbol USBCLKin parameter XI/XOUT crystal value USBCLKin duty cycle value 6 (typ) 50 2 unit MHz %
6.4.3 External EEPROM interface Table 9
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SN11085
symbol Fsk parameter ROMSK pin clock frequency value 200
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unit kHz
6.5 Power consumption Table 10
symbol Io_max Is_max parameter Max current in operation Max current in suspend mode value 20 TBD unit mA uA
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7. Packaging dimension
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8 Version Control
Draft 0.1 0.2 Apr-29-2002 June-17-2002 Dec-25-2002
modify the EEPROM content description
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DISCLAIMER
The information appearing in this publication is believed to be accurate. However, this publication could contain technical inaccuracies or typographical errors. The reader should not assume that this publication is error-free or that it will be suitable for any particular purpose. SONiX makes no warranty, express, statutory implied or by description in this publication or other documents which are referenced by or linked to this publication. In no event shall SONiX be liable for any special, incidental, indirect or consequential damages of any kind, or any damages whatsoever, including, without limitation, those resulting from loss of use, data or profits, whether or not advised of the possibility of damage, and on any theory o f liability, arising out of or in connection with the use or performance of this publication or other documents which are referenced by or linked to this publication. This publication was developed for products offered in Taiwan. SONiX may not offer the products discussed in this document in other countries. Information is subject to change without notice. Please contact SONiX or its local representative for information on offerings available. Integrated circuits sold by SONiX are covered by the warranty and patent indemnification provisions stipulated in the terms of sale only. The application circuits illustrated in this document are for reference purposes only. SONIX DISCLAIMS ALL WARRANTIES, INCLUDING THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PURPOSE. SONIX reserves the right to halt production or alter the specifications and prices, and discontinue marketing the Products listed at any time without notice. Accordingly, the reader is cautioned to verify that the data sheets and other information in this publication are current before placing orders. Products described herein are intended for use in normal commercial applications. Applications involving unusual environmental or reliability requirements, e.g. military equipment or medical life support equipment, are specifically not recommended without additional processing by SONIX for such application.
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