Stec SLUFD1GU2TU USB flash drive
Contents
1. 0 3 V Output HIGH Voltage Vou Dr of 15KQ to GND 2 8 3 6 V Output E Were 13 R 20 V 61000 07007 105 June 2011 14 EsTEC The SSD Company SLUFDxxxU2TU I Datasheet Industrial Grade USB Flash Drive Table 14 DC Characteristics for High Speed Operation T 25 C Vdd 5V Vss 0V Parameter Symbol Test conditions Supply Voltage Vous 4 75 5 25 V High Speed Idle Level Vusol 10 10 mV EE Vas 360 440 mV Chirp J SE E Meter 0 7 14 y Chirp K nate ees Kee 0 9 05 mV 5 3 AC Characteristics Measurements at Recommended Operating Conditions unless otherwise specified Table 15 AC Characteristics Full Speed Parameter Symbol Min Typ Rise Time TFR 4 20 ns Fall Time TFF 4 20 ns de E Fall TEREM 90 111 11 Driver Output Resistance Zprv 28 44 Q Table 16 AC Characteristics High Speed Parameter Symbol Min Typ Max Unit Rise Time 10 90 Tuen 500 ps Fall Time 10 90 Tuer 500 ps Driver Output Resistance ZHSDRV 40 5 49 5 Q EsTEC The SSD Company 61000 07007 105 June 2011 SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 6 0 SCSI Command List Table 17 SCSI Command List Command List ODptCode RBC SPC 2 SPC 3 INQUIRY 12h y y J MODESENSE 6 1Ah a J J MODESENSE 10 5Ah n J PREVENT ALLOW MEDIUM REMOVAL 1Eh y y N READ 10 28h af READ2. Capacity 1GB 8GB USB 2 0 Compliant LED activity indicator Customizable for logo graphic design High Reliability Guaranteed 2M Write Operations Advanced Wear Leveling BCH ECC Engine corrects up to 12 bits 512 Bytes errors Automatic Bad Block Management Single Level Cell SLC NAND Flash Memory 10 Year Data Retention NEBS Level 3 compliant for ESD 8KV Contact 15KV Air Lot Traceability Commercial and Industrial Operating Temperature RoHS 6 Compliant 1GB to 8GB Industrial Grade USB Flash Drive Ss TEC The SSD Company SLUFDxxxU2TU I General Description STEC s Industrial Grade USB Flash Drive UFD is more than just portable storage Tailored for industrial applications that require high reliability and data throughput it provides non volatile industrial grade solid state storage in a thumb drive package In addition labeling allows for lot traceability and complete info on the Bill of Materials The Industrial Grade UFD is available in an ESD rated enclosure with LED light indicator for applications that require NEBS Level 3 compliancy The ESD rated enclosure has been tested for immunity from ESD for 8KV contact and 15KV air STEC s U2T state of the art USB 2 0 flash memory controller is incorporated in the Industrial Grade UFD providing high data integrity and endurance The flash management software that is embedded in the controller emulates a hard disk enabling read write
3. CAPACITY 25h y REQUEST SENSE 03h Ni y START STOP UNIT 1Bh y TEST UNIT READY 00h V y y WRITE 10 2Ah y R VERIFY 10 2Fh SYNC CACHE 35h V z 61000 07007 105 June 2011 16 EsTEC The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 7 0 Product Marking USB Flash Drive will be shipped with standards compliance logos on the front label Figure 4 and the manufacturing info on the back label Figure 5 thereby providing lot traceability and full access to the Bill of Material The back label of the USB Flash Drive shows the BOM Assembly Number Table 18 decodes the BOM Assembly Number into the manufacturing info 7 1 Front Label STEC USB FLASH DRIVE LABEL SPECIFICATION 1 Label Outline and Dimensions 26 6 mmm Comer Rodius x4 0 76mm 0 03in 95 nm yon outline presents DIELNE DOES NOT PRINT 2 Pre printed content and sample Actual Size Enlargen for viewing H SS Ce eo VW Z xe Label Part No 74510 00241 001 W ec _ 3 Label Material Information MATERIALS UV inks COLOR PALATTE PMS 429 PMS 485c Reflex Blue LABEL ORIENTATION Bottom of label comes off roll first NOTES e Label is to ba place on bottom of drive STEC UFD STANARD LABEL SPECIFICATION REVISION PRODUCT MANAGER SCOTT PHILLIPS REVISION DATE MARCH 2009 SPEC DESIGNER TINH NGO SPECIFICATION 62100 00001 001 LABEL PART 745 10 00241 001 THIS INFORMATION IS CONFIDE
4. PHILLIPS REVISION DATE MARCH 2009 SPEC DESIGNER TINH NGO SPECIFICATION 62100 00001 004 LABEL PART 745 10 00241 001 THIS INFORMATION IS CONFIDENTAL AND PROPRIETARY TO STEC AND SHALL NOT BE REPRODUCED OR OTHERWISE DISCLOSED TO ANYONE OTHER THAN STEC EMPLOYEES WITHOUT WRITTEN PERMISSION FROM STEC Figure 5 Back Label EsTEC The SSD Company 61000 07007 105 June 2011 18 SLUFDxxxU2TU I Datasheet Industrial Grade USB Flash Drive 7 3 Decoding the BOM Assembly Number BOM Assembly Number Format ppp00 0xxxx yyzT C I U Table 18 BOM Assembly Number info Description STEC designation for OEM Flash products pppoo ppp is 940 for standard or customer prefix for custom OXxxx PCB number yy Product Revision Capacity Designator Randomly assigned per PCB number based on designator availability T Model Revision C 1I Commercial and Industrial Operating Temperature U RoHS Compliant 8 0 Programmed Vendor and Product Names The USB Flash Drive can be manufactured with standard or customer specific Vendor and Product Names Table 19 lists the STEC standard names for USB Flash Drive The names can be displayed by the OS for example Windows XP displays the names in the notifications area in the right corner of the screen the first time the module is installed Windows Device Manager and the properties of the USB Flash Disk Module also can display the names Table 19 STEC St
5. contrast to the EWF which has been protecting devices at the sector level FBWF and EWF combined with the built in wear leveling algorithm ensure that the maximum life span of the flash device is achieved 61000 07007 105 June 2011 10 srec The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 3 4 Unique Serial Number During manufacturing stage a unique serial number is written to the USB Flash Disk that includes a date code related to the time of manufacturing The serial number uses the following format AA B C DD EE FFFF GGGG Table 6 below describes the parameters of the serial number Table 6 Unique Serial Number format Symbol Parameter AA STEC Reserved 86h B Year hex C Month hex DD Day hex EE Production PC Number hex FFFF Last 2 Bytes of MAC Address GGGG Serial Number Incremental hex The Serial Number can be obtained through Windows Device Manager or Linux Isusb utility 61000 07007 105 June 2011 11 Sstec The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 4 0 Environmental Specifications 4 1 Recommended Operating Conditions Table 7 Recommended Operating Conditions Parameter Symbol Min Typ Max Unit Commercial Operating Temperature Ta 0 25 70 C Industrial Operating Temperature Ta 40 85 C Bus Voltage 5V Veus 5v 4 75 5 0 5 25 V 4 2 Reliab
6. operations that are identical to a standard sector based hard disk Sophisticated wear leveling algorithms ensures greater flash endurance while automatic bad block management and a built in ECC Engine guarantee the highest data reliability Based on the BCH error correct algorithm the ECC engine can correct up to 12 bit errors per 512 Bytes High performance high reliability and a controlled Bill Of Materials make the Industrial Grade UFD the product of choice in industrial applications such as POS Workstations Networking Equipment automotive diagnostics and Industrial PCs The UFD is fully customizable to add a company logo graphic design or text In addition STEC offers value added services to OEM customers such as pre loaded content and controlled Bill Of Materials Ordering Information USB Flash Drive itv sity 1 GByt Part Number es SLUFD1GU2TU I SLUFD2GU2TU I 2 GBytes SLUFD4GU2TU I 4 GBytes SLUFD8GU2TU I 8 GBytes Legend SLUFD STEC standard USB Flash Drive part number prefix 1G 2G 4G 8G 1GB 2GB 4GB 8GB Capacity U2T STEC U2 controller 2 Generation U RoHS 6 compliant Part numbers without I Commercial temperature range 0 C to 70 C Industrial temperature range 40 C to 85 C SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet Table of Contents General SS UU E 1 Ordering Information USB Flash Drive ax sisiciccciccccccetececenstessneenteccce
7. 40 0 20 0 488 0 008 16 60 0 20 0 654 0 008 UFD Cap 14 40 0 20 0 551 0 008 PS UI UFD with Cap in Place 66 1 2 602 Max gt 16 60 0 20 0 654 0 008 REF 7 02 0 20 Y 0 276 0 008 REF F Figure 2 Mechanical dimensions UFD ESD Rated enclosure 61000 07007 105 June 2011 4 EsTEC The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 2 2 Pin Assignment and Description Table 2 Pin Assignment and Description Pin Number Signal Name Description 1 VBUS Power Bus voltage supply 2 D VO Data line 3 D UO Data line 4 GND Ground Ground 2 3 Performance The Industrial Grade UFD is USB 2 0 high speed 480Mb sec and USB 1 1 full speed 12Mb sec compliant Measured performance for high speed can be found in Table 3 Table 3 Read Write Performance Parameter Value Sustained Read up to 30 MB sec Sustained Write up to 20 MB sec 2 4 LED Functionality The Industrial Grade UFD with standard enclosure incorporates a LED activity indicator that functions as described below LED flashing Industrial Grade UFD is transmitting receiving data or is identification process Default LED colors Blue 61000 07007 105 June 2011 5 Sstec The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 2 5 Power Consumption The power consumption currents listed in T
8. Cuba Iraq Libya North Korea Iran Syria or any other country to which the United States has embargoed goods or given to ii anyone on the United States Treasury Department s list of Specially Designated Nationals or the U S Commerce Departments s Table of Deny Orders By using the information you represent and warrant that you are not located in under the control of or a national or resident of any such country or on any such list COPYRIGHT NOTICE Copyright 2011 by STEC Inc All rights reserved Information contained in this document including but not limited to any instructions descriptions and product specifications is considered proprietary and confidential to STEC Inc and shall not be modified used copied reproduced or disclosed in whole or in part in any form or by any means electronic or mechanical for any purpose without the written consent of STEC Inc 61000 07007 105 June 2011 22 e serge The SSD Company
9. NTAL AND PROPRIETARY TO STEC AND SHALL NOT BE REPRODUCED OR OTHERWISE DISCLOSED TO ANYONE OTHER THAN STEC EMPLOYEES WITHOUT WRITTEN PERMISSION FROM STEC Figure 4 Front Label 61000 07007 105 June 2011 17 EsTEC The SSD Company SLUFDxxxU2TU I Datasheet Industrial Grade USB Flash Drive 7 2 Back Label STEC USB FLASH DRIVE LABEL SPECIFICATION 2 Designated Post printable Areas 1 Label Outline and Dimensions 26 6 mm Comes Rodius x4 0 76mm 0 03in Post print information a 1 Ordering Info Phantom No S Cyon outline presents DIEUNE E 2 Item No DOES NOT PRINT 3 Kanbon ID 4 County of Origin 5 Copodiy All font Helvetice Neue 57 Condensed Sp Compliance Logos pre print CE FCC WEEE Chino RoHS 20 CTick BSA KCC wO 7 Text Field Area IS Printable Informotion Areo C Non Printable Information Areo 3 Pre printed content and sample 4 Post printed content and sample Actual Size Actual Size E o iG Be wa aan MR vest eS 5 Placement of Label Top of Drive Bottom of Drive 6 Label Material Information MATERIALS 2 mil white uncoated mylar 1 mil transparent adhesive UV inks ULICSA Approved O PMs PMS 429c PMS 485c Retlex Blue COLOR PALATTE LABEL ORIENTATION Bottom of label co NOTES Label is to be pla es off roll first ce on bottom of drive STEC UFD STANARD LABEL SPECIFICATION REVISION C PRODUCT MANAGER SCOTT
10. able 4 are for reference only Power consumption may change according to flash memory used Table 4 Power Consumption Power State Symbol Power Consumption Typical Normal INORMAL 70 6 mA Suspend IsuSPEND 0 8 mA Sleep Joer 0 8 mA Read IREAD 108 3 mA Write IwRITE 160 9 mA 61000 07007 105 June 2011 6 Sstec The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 3 0 Theory of Operation 3 1 Block Diagram The Industrial Grade UFD uses STEC s U2T state of the art USB 2 0 controller and is 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 controller consists of the functional blocks as shown in Figure 3 The blocks are described in the paragraphs following the figure Micro Flash Storage Controller Management Unit Algorithm Dual Channel USB ines Multi Layer Bus Flash Flash Bank 0 nterface host Controller Interface Flash Bank 1 Controller NR SRAM ROM Buffer ECC Voltage Regulator Se ee Figure 3 Controller block diagram 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 func
11. andard USB Vendor and Product Names Parameter Value STEC Vendor Name Product Name STEC USB 2 0 EsTEC The SSD Company 61000 07007 105 June 2011 19 SLUFDxxxU2TU I Datasheet 9 0 Contact Information Industrial Grade USB Flash Drive 9 1 STEC Worldwide Headquarters STEC INC 3001 Daimler Street General Support 1 949 476 1180 Santa Ana California 92705 Fax Number 1 949 476 1209 United States of America USA E mail oemsupport stec inc com 9 2 STEC Worldwide Locations STEC ITALY S R L STEC TAIWAN STEC JAPAN G K Via del Caravaggio 3 RM1101 11F No 495 Shinyurigaoka City Building 4 402 20111 Milano Guang Fu S Road 1 1 1 Manpukuji Aso ku Kawaski shi Italy Taipei Kanagawa ken 215 0004 Taiwan Japan Phone 39 02 497 56 213 Phone 886 2 8780 8000 Ext 1101 Phone 81 44 959 2883 Fax 886 2 8725 7711 Fax 81 44 959 2887 STEC MALAYSIA STEC CHINA STEC Technology Sdn Plot 107 Bayan Lepas Industrial Park RM1805 18F Bund Centre 222 Yan An Road East Phase 4 HuangPu District Shanghai 200002 11900 Penang Malaysia P R China Phone 60 4 8887888 Phone 86 21 6132 3892 Ext 629 Fax 86 21 6335 1336 e serge The SSD Company 61000 07007 105 June 2011 20 SLUFDxxxU2TU I Datasheet Industrial Grade USB Flash Drive 10 0 Revision History Revisio
12. ct Specifications covers the most referenced specifications such as mechanical dimension signal description and performance Theory of Operation explains the Industrial Grade UFD block diagram and flash management features Environmental Specifications characterizes the recommended operating conditions reliability parameters and shock vibration and humidity parameters Electrical Specifications describes the absolute maximum ratings and AC DC characteristics Product Marking describes the marking on the USB Flash Drive Q SLUFD2GU2ZTU 2GB Ce Fe 94000 01886 1A2TCU X S m 090401 PC1 001 VI Made in Malaysia amp Figure 1 Industrial Grade USB Flash Drive 61000 07007 105 June 2011 3 amp sTEC The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 2 0 Product Specifications 2 1 Mechanical Dimensions Table 1 and Figure 2 show the mechanical dimensions of the Industrial Grade UFD with ESD Rated Enclosure Table 1 Mechanical dimension Parameter ESD rated enclosure Length with Cap 66 1 mm 2 602 in Max Width 16 60 0 20 mm 0 654 0 008 in Height 7 02 0 20mm 0 276 0 008 in Units mm in UFD with Cap Removed 11 80 0 25 48 80 0 50 0 465 0 010 1 921 0 020 je ei pel USB Series A Plug 1 VBUS H 2 D y 3 D 4 GND 4 41 0 20 12 00 0 10 0 174 0 008 0 079 0 008 0 472 0 004 7 02 0 20 0 276 0 008 __ 12
13. ility Parameter Endurance Table 8 Reliability Value 2M write operations Uncorrectable Bit Error Rate UBER lt 1 uncorrectable error per 1077 bits read Data retention 10 years Durability 1500 insertions removals 4 3 Shock Vibration and Humidity Parameter Table 9 Shock Vibration amp Humidity Value Shock 1500G Peak 0 5m pulse duration 5 pulses 6 axes per JESD22 B110 Ee 20G Peak 20 2000 Hz 4 cycles per direction X Y and Z Xibration per JESD22 B103 Humidit 85 C 85 RH Vmax for 500 hrs y per JESD22 A101 EsTEC The SSD Company 61000 07007 105 June 2011 SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 4 4 Electrostatic Discharge ESD The Industrial Grade UFD has been tested for immunity from ESD under the conditions described in Table 10 Table 10 Electrostatic Discharge for UFD ESD Rated Enclosure ESD Type Maximum Discharge Contact 8KV Air 15KV 4 5 Mean Time Between Failure MTBF STEC estimates Mean Time Between Failure MTBF using a prediction methodology based on reliability data for the individual components in the USB Flash Drive Table 11 summarizes the prediction results for the USB Flash Disk Drive based on the following two methodologies Telcordia Special Report SR 332 Reliability Prediction Procedure for Electronic Equipment e MIL HNBK 217 The analysis was perfo
14. lash limitations Implemented in firmware are the below features Flash file system management Bad block management Wear leveling Performance optimization 3 2 1 Bad Block Management Inherent to NAND flash technology are areas blocks on the media that cannot be used for storage because of their high error rate These so called bad blocks are already identified by the flash vendor during manufacturing but can also be accumulated over time during device operation The U2T controller contains a table that lists all the bad blocks on the device Bad Block Table and automatically maps out these blocks upon system initialization During device operation it ensures that newly accumulated bad blocks are also mapped out and added to the Bad Block Table Bad block management is 100 transparent to the host application which will not be aware of the location or existence of bad blocks on the media 61000 07007 105 June 2011 8 e serge The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 3 2 2 Wear Leveling The SLC NAND flash devices that are being used in the USB Flash Drive are guaranteed for 100 000 Write Erase cycles per block This means that after approximately 100 000 erase cycles the erase block has a higher probability for errors than the error rate that is typical to the flash While 100 000 write erase cycles may be good for consumer data storage such as digital cameras MP3 player
15. n Date Description 101 02 14 2011 Preliminary release 102 02 23 2011 Label on photo of UFD updated Extended changed to Industrial Temperature T designator added to BOM Assembly Number 103 04 08 2011 UBER Endurance and ECC Engine corrected paper error only 104 04 26 2011 Photo edited to increased dpi Preliminary notice removed 105 06 07 2011 Logo updated ESTEC 61000 07007 105 June 2011 21 The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet DISCLAIMER OF LIABILITY STEC Inc reserves the right to make changes to specifications and product descriptions such as but not limited to numbers parameters and other technical information contained herein without notice Please contact the STEC Inc sales office to obtain the latest specifications STEC Inc grants no warranty with respect to this datasheet neither explicit or implied and is not liable for direct or indirect damages Some states do not grant the exclusion of incidental damages and as such this statement may not be valid in such states The provisions of the datasheet do not convey to the purchaser of the device any license under any patent rights or other intellectual property rights of STEC Inc or others EXPORT ADMINISTRATION REGULATIONS The information provided may be subject to United States Export Controls Such information should not be downloaded or exported i into or to a national or resident of
16. nsteesncnstencccestennenaeteccsencteree 1 K N TREE EE 3 20 Product Spe cificatiONS sssr raa re aa Orasson raap reari Ei rana 4 ST Mechanical DIMEnsiOnS sesanan saras ninan anaE En AKAA ARES ARA E AE a 4 2 2 Pin Assignment and Description sssrsisssisanin einasi nS ARA S AEEA AA 5 2230 neu 5 2 4 LED Funcionales iaaa a a E E EE E E E E T 5 25 POWEP CONSUMPTION ET 6 3 0 TREOLY OF Operati M sicacsccsasscscecsnteacssiccctsrccexancsaiavesdncdexaneantonecsaienaeanmicuanducioreseimumcaseueueueiens 7 Sik Boek Diag e 7 3 1 1 Controller Internal Components 7 3 1 2 Controller External Components ssssseeeseeeseeesiessinesirssirssinssinssinsstnsstinstnnntnnstnnttnnntnnntnnnnnnntnn nnt 8 ae Flash Manageme ntsc esst ai aa E Kc Dheewe cht ve Age a ilvuttaaeeldtis 8 3 2 1 Bad Block Management oo ageet Geet A EE ES 8 32 2 Wear Loveling cieri iurien aa ia aie DENE AEE E AE ada ade Aaa EE 9 3 2 3 Error Correction Detection ccccccccceccceeeeseeeeeececeeeeeeaaeeeeaaeseaeeceaeeeeaaeseeaaessneeseaeeseaeeseaeeeeanees 9 3 3 ele e 10 3 3 1 Using USB Flash Drive with XP Embecdded 10 3 4 Unique Serial Number geed cessed estates eege AEN E deed 11 4 0 Environmental Speclil eating viiicsiscccescscccrsccccsecctessccostcencesancacacceteruntcesacsencseeticicedesacnccncies 12 4 1 Recommended Operating Conditions cccceeeeceeeeeeeeeee cesses scence seaeeeeaaeeeeaeeseeeeeseaeeesaeeseaeeeeaes 12 Ee UE 12 4 3 Shock Vibration ANd Humidity sessie
17. re It will then compare the original written signature with the newly created signature and sets an error flag if the two signatures are not the same Correction of the data is done on the fly when the error flag is set and the data presented to the host will be the same as the original written data an Uncorrectable Bit Error Rate UBER of less than 1 in 10 bits read 61000 07007 105 June 2011 9 e serge The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 3 3 OS Support The Industrial Grade UFD is recognized as a removable drive and supports the following Operating Systems as listed in Table 5 Table 5 Supported Operating Systems Operating System Version Windows 98 2000 XP Vista Windows 7 Windows XP Embedded Service Pack 2007 Windows CE 4 2 and 5 0 Windows for POS WEPOS VxWorks 6 1 and up Linux Kernel 2 4 and up Note Windows 98 requires driver 3 3 1 Using USB Flash Drive with XP Embedded When using USB Flash Disk Drive with Windows XP Embedded it is recommended that the Enhanced Write Filter EWF feature is implemented The EWF intercepts calls at the sector level and thereby eliminates many file system updates writes to the flash Windows XP Embedded Service Pack 2 Feature Pack 2007 introduced an additional write protect feature called File Based Write Filter FBWF The new FBWFE function write protects embedded devices at the file level in
18. rmed using Relex Software Table 11 USB Flash Drive MTBF Product Condition MTBF hours Telcordia SR 332 GB 25 C SLUFD4GU2TU MIL HNBK 217 gt 4 000 000 Telcordia SR 332 GB 25 C SLUFD8GU2TU LUN oe gt 4 000 000 4 6 Standards Compliance USB Flash Drive complies with the following standards CE EN 55022 55024 FCC Class B for Information Technology UL 60950 RoHS 6 USB 2 0 Mass Storage Class 61000 07007 105 June 2011 13 EsTEC The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 5 0 Electrical Specifications 5 1 Absolute Maximum Ratings Operation not guaranteed at extreme corner cases Table 12 Absolute Maximum Ratings Parameter Symbol Value Unit Power Supply Voltage Relative to Ground Veus 0 3 to 5 5V V Voltage on D and D Relative to Ground VDATA 0 3 to 3 6 V Ambient Operating Temperature Commercial Ta 0 to 70 C Ambient Operating Temperature Industrial Ta 40 to 85 C Storage Temperature Tstg 40 to 85 C 5 2 DC Characteristics Measurements at Recommended Operating Conditions unless otherwise specified Table 13 DC Characteristics for Full Speed Operation T 25 C Vdd 5V Vss 0V Parameter Symbol Test conditions Min Typ Max Unit Supply Voltage Vous 4 75 5 5 25 V Input LOW Voltage Vit 0 8 V Input HIGH Voltage Vin 2 0 V Output LOW Voltage VoL D SE
19. s etc it is not sufficient for industrial and embedded applications where data is constantly written to the device and long product life is required For example operating systems that use a file system will update the File Allocation Table FAT every time a write is done to the device Without any wear leveling in place the area on the flash where the FAT table is located would wear out faster than other areas reducing the lifetime of the entire flash device To overcome this limitation the flash management algorithm needs to make sure that each block in the device ages i e is worn out at the same rate The built in wear leveling scheme makes sure that with every write to the flash the youngest block is used This ensures that the full flash media is used uniformly so that one area of the flash will not reach the endurance limits prematurely before other areas 3 2 3 Error Correction Detection The USB 2 0 controller implements an advanced Error Correction scheme based on the BHC error correct algorithm The ECC engine can correct up to 12 bits per 512 Bytes symbol based To ensure the fastest performance correction is done on the fly in hardware only Each time the host application writes a sector of 512 bytes to the Industrial Grade UFD a unique ECC signature is created by the ECC engine and written together with the data to the flash When the data is read back by the host the ECC engine creates again the unique ECC signatu
20. s aannaaien AERAR NAAA ARNE ANRA ERRANAK RAA 12 4 4 Electrostatic Discharge EGD scenes seaeeesaaeeseaeeseeeeeseaeeesaeeseaeeeeaes 13 4 5 Mean Time Between Failure MTBF sseassseessssesssrnesssnnessnnnenrnnnennnnnnntnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnna 13 4 6 Standards Compliance A 13 5 0 Electrical Specifications scicscicicccicccscsciescssrctansrnicsensducixcaseucanisuvecianesnsniancsobeusuermennaxcdaonsies 14 5 1 Absolute Maximum Ratings sssrini aa AE AA 14 52 DC Charact ristiCSieniia sinea ei a ea aA Een 14 5 3 ACG Characteristics isiin eaa Een 15 6 0 SGSlCGommand List ssis raisini isi nn anea teiece teste dates ccaieteacendnieed rindan eiaeia 16 TO Product Marking irisito nae ain ieaie aar eaan aE aE E arie g EOS aN ren ia 17 Kaal ona E EE 17 T2 Back Ee EE 18 7 3 Decoding the BOM Assembly Number 19 8 0 Programmed Vendor and Product Names ccccccceeseeeeeeeeeeeeeeeeeseeeeeneeeeeeeeeeeneeeeenenees 19 90 oF ls Ace EE 20 9 1 STEC Worldwide Headquarters cccccccccceeeseceeeeeceeeeeeeaeeeeaeeeeceeeseaeeecaaesseaeeseeeeeseaeeesaeeseaeeeeaes 20 9 2 STEC Worldwide Locations 20 10 0 REVISION PISTONY sicccieicciccnssscseccvccctescnarisaatuctasceniernnareucdeneasuotkubrausccncocuseenesennncioncucuaneesiaraies 21 e serge 61000 07007 105 June 2011 2 The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 1 0 Introduction This datasheet includes the following sections Produ
21. tion 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 Correction ECC block is responsible for on the fly error and correction Sector Buffer for optimized performance SRAM for running controller firmware fast and efficient ROM for storing controllers boot code 61000 07007 105 June 2011 7 e serge The SSD Company SLUFDxxxU2TU I Industrial Grade USB Flash Drive Datasheet 3 1 2 Controller External Components In addition to the functional blocks shown in Figure 3 the Industrial Grade UFD has the following external components SLC NAND Flash for the most reliable data storage Crystal Oscillator 12Mhz as the main clock source 3 2 Flash Management Since the Industrial Grade UFD provides a standard USB interface to the host no software integration is required providing the shortest time to market for design engineers The firmware of the embedded USB 2 0 controller contains STEC s advanced flash memory management algorithms to ensure the most optimum device performance reliability and endurance It was designed to maximize the benefits of flash memory while at the same time overcoming inherent NAND f
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