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SN11088
2003/7/8
ver 0.3
SN11088 Third Generation USB1.1 Flash Memory Controller
Version 0.1 2003/10/8
1 General Description
SN11088 is a high-performance integrated circuit to access the NAND type Flash memory via the USB 1.1 bus. It provides a flexible and cost efficient single chip solution for external storage applications such as USB Disk (Flash Disk). With the capability to be pin-to-pin compatible to SN11085/86/87, the current user of SN11085/86/87 can easily upgrade to SN11088 with no engineering effort needed at all. With all the features inherited from SN11085/86/87 like the low 6MHz system clock to reduce the EMI, the embedded translation table to eliminate the cost of external memory, the Sonix proprietary randomization algorithm to extend the lifetime of flash memory and ensure the product robustness, and the real time ECC correction function, the SN 11088 adds several other unique features to reduce the cost of the end product and meet the customer's requirements. To enrich the product line of the OEM manufacture, with the ability to support 8 pieces of flash memories and the new types of 2G, 4G, and 8G bits flashes, SN11088 can be used to build up a storage device up to 4 Giga bytes. To reduce the total cost of the end product, SN11088 incorporates a power MOS inside to meet the current requirement (500 uA) in USB suspend state. The usage of EEPROM can also now be eliminated by the capability to program the customized vendor/product ID/string in the flash itself. Therefore, the total cost is reduced by upgrade from SN11085 to SN11088. With keeping all the versatile functions provided by older products, like programmable LED speed, FDD support, etc., SN11088 now provides CD-ROM support and separate write protect features for different LUN, so the product makers can put their SW and manuals in the flash directly without accompanying the extra CD-ROM, reducing the cost more. Therefore, in total of 6 kind of different configurations can be selected by the flash disk
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SN11088
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manufacturers during the mass production stage, making production much easier. With these flexibilities, the manufacturers can easily build different products by using exactly the same components. The USB Mass Storage Class compliance capability of SN11088 makes it a truly "plug-and-play" device without vendor drivers under Windows 2000/ME/XP and Mac OS 9/10. SN11088 also provides PC boot up and data security function that exact the same as a floppy disk (1.44M), which makes it an ideal replacement for the legacy floppy disk.
2 Features
l l l l l l l l l l l l l l l l l l l l USB 1.1 12 MHz 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 Low system clock (6MHz) to reduce EMI Customized VID, PID, serial number, and 28 characters of Vendor/Product/Revision string supported within flash. Support Samsung and Toshiba NAND-type flash memory, from 32Mbits to 1Gbits Support new type of Samsung NAND type flash memory, from 1Gbits to 8Gbits Support FDD/ZIP/HDD/CD-ROM format through Sonix mass production tool Real-time ECC correction circuit for data integrity and memory access speed acceleration Embedded SRAM for logical-to-physical address translation to extend the life time of NAND-type flash Support up to 8 NAND type flash memories are supported Support up to 4 Gbytes of disk capacity Embedded FIFO for upstream and downstream data transfer Built-in power MOS to meet USB suspend requirement (500 uA) Data transfer rate up to 1.5 MB/s (burst), 1.1 MB/s (read average) LED indicator pin Three modes of LED flashing patterns can be selected Five speed of LED flashing speed provided PC boot up capability (host BIOS with USB boot up support is necessary)
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SN11088
l l l l l l l l l l l
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ver 0.3
Flash disk security function provided, up to 16 characters of password for high sensitive data protection from illegally access Five types of security functions can be selected ROM-type flash disk capability provided (permanent write protect) No Driver needed under Microsoft Windows ME/2000/XP, Mac OS 9.x/10.x Sonix Driver for Microsoft Windows 98/98SE Sonix Driver for Mac OS9 Sonix mass production tool available for mass production Sonix security program available Sonix bonus programs available Single 3.3V operation 48 pin LQFP package
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3. Pin Assignment
35 AD VD AS VS DL S PU D INS 40 MU F C8 LE F C6 LE F C4 LE F C2 LE F D 45 L4 FD L5 FD L3 VD D 1
Table 1 SN11088 pin list (red character is the pins different to SN11085) # 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 PWR DIO DIO DIO DIO DIO DO DI DIO DIO DO 8mA 8mA 8mA 8mA PD 8mA PD 8mA PD 8mA PD 8mA PD 8mA drive special description 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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GD N FD L6 FD L2 FD L7 FD L1 FD L0 FW LP FR LB FW LE FR LE F AE LL GD N
FW W LP S GIO P1 R MO OD R MI OD R MK OS VD D GD N R MS OC GIO P0 FP W LO E R VD U DO T VD DIN 30 25 5 10 XU OT X IN N C TS ET SN 20 R T LD E1 FC7 LE FC5 LE FC3 LE LE 15 F C 1 F CE LL VD D
SN11088
12 GND 13 VDD 14 FLCLE 15 FLCE1 16 FLCE3 17 FLCE5 18 FLCE7 19 LED 20 RSTN 21 TEST 22 GPIO1 23 XIN 24 XOUT 25 VDD 26 FLVDD PWR PWR DO DO DO DO DO DIO DI DI DIO I O PWR PWR 8mA 8mA OC 8mA 4mA 8mA 8mA 8mA 8mA 8mA 8mA PD 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 LED lighter Chip reset, connected to external RC circuit Test pin, NC in normal operation Do Not Connect Crystal input or oscillator input Crystal output or no connection Digital 3.3V 3.3V power to flash VDD Flash power control, connect to external MOS Needs to be pulled up externally. General Purpose Input/Output 0 for internal test Always pull up for normal operation Chip select for external EEPROM Digital ground Digital 3.3V
27 FLPOWER DO 28 GPIO0 29 ROMCS 30 GND 31 VDD 32 ROMSK 33 ROMDI 34 ROMDO 35 GPIO1 DIO DO PWR PWR DO DO DI DIO
4mA 4mA 4mA 8mA PU
Clock for external serial EEPROM Serial data to external EEPROM Serial data from external EEPROM, pull up externally if no EEPROM is connected General Purpose Input/Output 1. Pull up/down depends on operation modes Flash write protect switch Analog 3.3V Analog ground
36 FLWPSW DI 37 AVDD 38 AVSS 39 DPLUS 41 FLCE8 42 FLCE6 PWR PWR AIO DO DO 8mA 8mA
-
USB D+ signal USB D- signal Flash memory chip enable 8 Flash memory chip enable 6
5
40 DMINUS AIO
SN11088
43 FLCE4 44 FLCE2 45 FLD4 46 FLD5 47 FLD3 48 VDD
Note:
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DO DO DIO DIO DIO P
8mA 8mA 8mA PD 8mA PD 8mA PD -
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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3 Block diagram
FIFO
USB interface logics
Switch Matrix
flash memory interface logics
SRAM SRAM
CPU
ROM
4 Functional description
5.1 Flash memory connection Up to 8 NAND type flash memories from Samsung or Toshiba can be connected to SN11088, the number of flash memory connected can be detected automatically upon power on. Each flash memory has its own chip enable control signal path (FLCE 1 to FLCE8). All flash memories connected to SN11088 must be of the same capacity, and it is suggested to connect them with concatenated ascending order from FLCE1 to FLCE8. There is no special rule for the number of flash memory. (e.g. not necessarily
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SN11088
to be the multiples of 2 or 4).
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5.2 VID/PID/SN and Strings format The default USB vendor ID, product ID and the strings for vendor name and product name can be changed by storing customized values into the flash. The serial number (defined in mass storage device class) can also be customized. It should be noted that the VID and PID values cannot be set to 0x0000 or 0xFFFF. The default vendor string of the SN11088 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. Upon power up, if the flash doesn't have vendor VID/PID stored, default USB vendor ID (hex 0C45) and product ID (hex 1060) are returned to the host. The VID/PID/Serial number and vendor/product strings can be programmed through the mass production software provided by Sonix. The serial number format in the Mass Storage Class device descriptor is described in section 5.1.1.1 of the spec. If the manufacturers needs to have serial number, then the value of the highest two nibbles (nibble 1 and 2) of the serial number can not be 0xFF, or the serial number feature will be disabled. 5.3 Software support Sonix provides the following software to customers 1) Application software and driver for Win98/2000/Me/XP; boot up utility is included for Win98/Me 2) Mass production tool is also provided. Please contact Sonix sales for detail.
5 Operating rating and electrical characteristics
6.1 Absolute maximum rating
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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 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
unit V V V V V V
0
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
0
C
6.3 DC electrical characteristics Table 6
symbol VDI parameter USB differential input sensitivity test condition value | (D+) - (D-) | 0.2 (min) 9 unit V
SN11088
VCM VSE VIH VIL VOH VOL IIL IIH IDD Isuspend 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 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)
2003/7/8
ver 0.3 V V V V V V
RSTN pin : the other pins : 3.0 (max) 20 (max) 20 (max)
- 50.0 (max) A - 3.0 (max) A mA A
6.4 AC electrical characteristics 6.4.1 Table 7
symbol Tr Tf Trfm Vo(crs) parameter
transition rise time for DP or DM transition fall time for DP or DM
USB transceiver signal (full speed mode)
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 Table 8
symbol
Operation clocks
parameter XI/XOUT crystal value USBCLKin duty cycle
value 6 (typ) 50 2
unit MHz %
USBCLKin
6.4.3 External EEPROM interface Table 9
symbol parameter 10 value unit
SN11088
Fsk ROMSK pin clock frequency 200
2003/7/8
ver 0.3 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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SN11088
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Version Control
0.1 Oct-8-2003 first draft
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SN11088
2003/7/8
ver 0.3
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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