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smsc usb97c242 page 1 revision 1.4 (05-03-07) datasheet usb97c242 usb 2.0 flash drive controller datasheet product features ? 2.5 volt, low power core operation ? 3.3 volt i/o with 5v input tolerance ? complete usb specific ation 2.0 compatibility ? includes usb 2.0 transceiver ? a bi-directional control and a bi-directional bulk endpoint are provided. ? complete system solution for interfacing smartmedia (sm), and nand flash devices to usb 2.0 bus ? supports usb bulk only mass storage compliant bootable bios ? support for the following devices: - sm: 2m ?15mb/sec - nand flash: 2m ? 15mb/sec ? built-in hardware 1-bit ecc support. ? 8051 8 bit microprocessor ? provides low speed control functions ? 30 mhz execution speed at 4 cycles per instruction average ? 12k bytes of internal sram for general purpose scratchpad ? 768 bytes of internal sram for general purpose scratchpad or program execut ion with external flash ? double buffered bulk endpoint ? bi-directional 512 byte buffer for bulk endpoint ? 64 byte rx control endpoint buffer ? 64 byte tx control endpoint buffer ? internal or external program memory interface ? 48k byte internal code space or optional 64k byte external code space using flash, sram, or eprom memory. ? on board 12mhz crystal driver circuit ? internal pll for 480mhz usb2.0 sampling, 30mhz mcu clock ? supports firmware upgrade via usb bus if sector- erasable flash program memory is used ? 7 gpios for special function use: led indicators, button inputs, power control to memory devices, etc. ? inputs capable of generating interrupts with either edge sensitivity ? 100 pin tqfp (12x12x1.4 body) lead-free rohs compliant package also available ordering information order number(s): usb97c242-mn-xx for 100 pin tqfp package USB97C242-MV-04 for 100 pin tqfp lead-free rohs compliant package
usb 2.0 flash drive controller datasheet smsc usb97c242 page 2 revision 1.4 (05-03-07) datasheet 80 arkay drive, hauppauge, ny 11788 (631) 435-6000, fax (631) 273-3123 copyright ? 2007 smsc or its subs idiaries. all rights reserved. circuit diagrams and other information rela ting to smsc products are included as a m eans of illustrating typical applications. consequently, complete information sufficient for construction pur poses is not necessarily given. although the informat ion has been checked and is bel ieved to be accurate, no responsibility is assumed for ina ccuracies. smsc reserves the ri ght to make changes to specif ications and product descriptions at any time without notice. contact your local smsc sales office to obtain the late st specifications bef ore placing your product order. the provisi on of this information does not convey to the purchas er of the described semiconducto r devices any licenses under any patent rights or other intellect ual property rights of smsc or others. all sales are expressly conditional on your agr eement to the terms and conditions of the most re cently dated ve rsion of smsc's standard terms of sale agreement dated before the date of y our order (the "terms of sale ag reement"). the product may contain d esign defects or errors known as anomalies which may cause the product's f unctions to deviate from published s pecifications. a nomaly sheets are available upon request. smsc products are not des igned, intended, authorized or wa rranted for use in any life s upport or other application whe re product failure could cause or contri bute to personal injury or severe property damage. an y and all such uses without prior written approval of an officer of smsc and further testing and/or modification will be fully at the risk of the customer. copies of this document or other smsc litera ture, as well as the terms of sale agreement, may be obtained by visiting smsc?s website at http:// www.smsc.com. smsc is a registered tr ademark of standard microsystems corporation (?smsc?). product names and company names are the trademarks of their respective holders. smsc disclaims and excludes any and all warranties, including without limitation any and all implied warranties of merchantability, fitness for a particular purpose, ti tle, and against infringement and the like, and any and all warranties arising from any course of dealing or usag e of trade. in no event shall smsc be liable for any direct, incidental, indirect, special, p unitive, or consequential damages; or for lost data, profits, savings or revenues of any kind; regardless of the form of action, whether based on contract; tort; negligence of smsc or others; strict liability; breach of warranty; or othe rwise; whether or not any remedy of buyer is held to have failed of its essential purpose, and whether or no t smsc has been advised of the possibility of such damages.
usb 2.0 flash drive controller datasheet smsc usb97c242 page 3 revision 1.4 (05-03-07) datasheet usb97c242 revision history page(s) section/figure/entry correction date revised 1 cover added lead-free ordering information rev. 1.4 02-16-06 5 chapter 1 ? general descripti on first bullet modified under the following section: internal program code provides the following features: ? support for 1 to 8, 128mb through 2gb, 512byte and 2048 byte page size, 8bit parallel nand flash memories, including multiple memory aggregates in multi-chip- modules (mcm) up to 8, 2gb devices (ie 16gb), as long as individual memory device chip enables are pinned out in the mcm. rev. 1.3 07-08-04 16 table 7.1 - dc electrical characteristics updated high input leakage units. rev. 1.2 11-05-03 5 chapter 1 - general description revised list of object code software and licenses; internal program code features rev. 1.1 04-03-03 8 chapter 3 - pin tablestable 3.1 ? usb97c242 100 pin package updated tables rev. 1.1 04-03-03 10 figure 4.1 ? 100 pin tqfp diagram updated, new pin names rev. 1.1 04-03-03 12 table 6.1 ? usb97c242 pin descriptions updated misc pin section rev. 1.1 04-03-03 22 table 11.1 - gpio usage updated table rev. 1.1 04-03-03 23 chapter 12 - typical application typical application diagram deleted rev. 1.1 04-03-03
usb 2.0 flash drive controller datasheet smsc usb97c242 page 4 revision 1.4 (05-03-07) datasheet table of contents revision history ............................................................................................................... ......................................2 chapter 1 general d escription ............................................................................................................ .......5 chapter 2 acronyms & definition .......................................................................................................... ......7 2.1 acrony ms....................................................................................................................... ..................................7 chapter 3 pin ta bles..................................................................................................................... ....................8 3.1 100 pin list ................................................................................................................... ...................................8 chapter 4 pin config uration .............................................................................................................. .........10 chapter 5 block di agram .................................................................................................................. ...........11 chapter 6 pin descri ptions ............................................................................................................... ...........12 6.1 buffer type de scripti ons....................................................................................................... .........................15 chapter 7 dc parame ters .................................................................................................................. ...........16 7.1 maximum guar anteed ra tings ..................................................................................................... .................16 7.1.1 capacitance ta = 25c; fc = 1mhz; vdd, v ddp = 2. 5v ..................................................................... 18 chapter 8 ac specific ations .............................................................................................................. ..........19 chapter 9 package outline................................................................................................................ ..........20 chapter 10 refere nce ...................................................................................................................... ............21 chapter 11 gpio usage table ............................................................................................................... ......22 chapter 12 typical a pplication ............................................................................................................ ....23 list of figures figure 4.1 ? 100 pin tqfp ...................................................................................................... ....................................10 figure 9.1 ? 100 pin tqfp package ou tline, 12x12x1.4 body (r ev a).............................................................. .........20 list of tables table 3.1 ? usb97c 242 100 pin pack age .......................................................................................... ..........................8 table 3.2 ? 100 pin tqfp ....................................................................................................... ......................................8 table 6.1 ? usb97c 242 pin descr ipti ons......................................................................................... ...........................12 table 6.2 - usb97c242 buffer type descriptions .......................................................................................................15 table 7.1 - dc electric al characteristics ...................................................................................... .................................16 table 9.1 ? 100 pin tqfp pa ckage parameters (rev a) ............................................................................ ................20 table 11.1 - gpio us age........................................................................................................ .....................................22
usb 2.0 flash drive controller datasheet smsc usb97c242 page 5 revision 1.4 (05-03-07) datasheet chapter 1 general description the usb97c242 is a usb2.0 bulk only mass stor age class peripheral controller intended for supporting smartmedia (sm), and nand flash memory devices. it pr ovides a single chip usb reader solution for the sm and nand flash devices in the market*. the device consists of a usb 2.0 phy and sie, buffers, fast 8051 microprocessor with expanded scratchpad, and program sram, 48kb pr ogram rom and sm controller. provisions for optional external flash memory up to 64k bytes for program storage is provided. 12k bytes of scratchpad sram and 768bytes of scratchpad sram are also provided. seven gpio pins are for the 100-pin dev ice. provisions are made to allow dynamic attach and re-attach to the usb bus to allow hot swap of flash media to be implemented. smsc provides the following object code software and licenses free of charge with purchase of the usb97c242**: ? windows 98 mass storage class driver. ? windows application for programming vid/pid/oem strings, and unique serial number into serial eeprom (sm reader) or nand flash via usb. ? production test and format utilities ? password protection api and example applet. ? firmware with field upgrade capability via usb (requi res external specific model 128kb flash for firmware storage). the internal program code prov ides the following features: ? support for 1 to 8, 128mb through 2gb, 512byte and 2048 byte page size, 8bit parallel nand flash memories, including multiple memory aggregates in multi-chip-modules (mcm) up to 8, 2gb devices (ie 16gb), as long as individual memory devic e chip enables are pinned out in the mcm. ? autodetection of nand flash memory type and capacity ? supports write protect switch ? wear leveling ? internal vid/pid/serial number /oem string storage in nand flash itse lf, eliminating need for external serial eeprom ? high performance transfers (interleav ing, copy block caching, etc.) ? drive password protection smsc may make complete internal specifications available for those customers requiring programming information, subject to smsc?s applicable proprieta ry information agreement (nondisclosure agreement). contact your smsc sales representative for more information.**
usb 2.0 flash drive controller datasheet smsc usb97c242 page 6 revision 1.4 (05-03-07) datasheet note: * in order to develop, make, use, or sell readers and/or other products using or inco rporating any of the smsc devices made the subject of this document or to use related smsc software programs, technical information and licenses under patent and other intellectual property rights from or through various persons or entities, including wi thout limitation media st andard companies, forums, and associations, and other patent holders may be required. these media standard companies, forums, and associations include without limitation the followi ng: sony corporation (memory stick), sd3 llc (secure digital/multimediacard), the ssfdc forum (smartm edia), and the compact flash association (compact flash). smsc does not make such licenses or te chnical information available; does not promise or represent that any such licenses or technical information will actua lly be obtainable from or through the various persons or entities (incl uding the media standard companies, foru ms, and associations), or with respect to the terms under which they may be made ava ilable; and is not responsible for the accuracy or sufficiency of, or otherwise with respec t to, any such technical information. smsc's obligations (if any) under the terms of sa le agreement, or any other agreement with any customer, or otherwise, with respect to infringemen t, including without limitati on any obligations to defend or settle claims, to reimburse for costs, or to pay damages, shall not apply to any of the devices made the subject of this document or any software programs relat ed to any of such devices, or to any combinations involving any of them, with respect to infringement or claimed infringement of any existing or future patents related to solid state disk or other flash memory technol ogy or applications (?solid state disk patents?). by making any purchase of any of the devices made the subject of this document, the customer represents, warrants, and agrees that it has obtained all necessary licenses under then-existing solid state disk patents for the manufacture, use and sale of solid state disk and other flash memory products and that the customer will timely obtain at no cost or expense to smsc all nece ssary licenses under solid state disk patents; that the m anufacture and testing by or for smsc of the units of any of the devices made the subject of this document which may be sold to the cu stomer, and any sale by smsc of such units to the customer, are valid exercises of the customer?s rights and licenses under such solid state disk patents; that smsc shall have no obligation fo r royalties or otherwise under any solid state disk patents by reason of any such manufacture, use, or sale of such uni ts; and that smsc shall have no obligation for any costs or expenses related to the custom er?s obtaining or having obtained right s or licenses under any solid state disk patents. smsc makes no warranties, express, implied, or statutory, in regard to infringement or other violation of intellectual property rights. smsc disclaims and excludes any and all warrant ies against infringement and the like. no license is granted by smsc expressly, by imp lication, by estoppel or otherwise, under any patent, trademark, copyright, mask work right, trade se cret, or other intellectual property right. **to obtain this software program the appropriate sm sc software license agr eement must be executed and in effect. forms of these software licens e agreements may be obtained by contacting smsc.
usb 2.0 flash drive controller datasheet smsc usb97c242 page 7 revision 1.4 (05-03-07) datasheet chapter 2 acronyms & definition 2.1 acronyms sm: smartmedia smc: smartmedia controller fm: flash media fmc: flash media controller ecc: error checking and correcting crc: cyclic redundancy checking
usb 2.0 flash drive controller datasheet smsc usb97c242 page 8 revision 1.4 (05-03-07) datasheet chapter 3 pin tables table 3.1 ? usb97c242 100 pin package nand flash/smartmedia interface (17 pins) d0 d1 d2 d3 d4 d5 d6 d7 ale cle nre nwe nwp nb/r nce ncd nwps usb interface (7 pins) usb+ usb- loopfltr rbias rterm fs+ fs- memory/io interface (29 pins) ma0 ma1 ma2 ma3 ma4 ma5 ma6 ma7 ma8 ma9 ma10 ma11 ma12 ma13 ma14 ma15 md0 md1 md2 md3 md4 md5 md6 md7 nmrd nmwr nmce niow nior misc (21 pins) romen gpio1 gpio20 gpio3 gpio4 gpio5 gpio6 gpio7 xtal1/clkin xtal2 nreset ncs4 ncs5 ncs6 ncs7 ncs0 ncs1 ncs2 ncs3 ntest0 ntest1 power, grounds, and nc (26 pins) total 100 3.1 100 pin list table 3.2 ? 100 pin tqfp pin # name ma pin # name ma pin # name ma pin # name ma 1 ma0 8 26 md5 8 51 nwe 12 76 rbias 2 ma1 8 27 md6 8 52 nwp 12 77 vdda 3 ma2 8 28 md7 8 53 nce 8 78 fs+ 4 ma3 8 29 nmrd 8 54 nwps 79 usb+ 5 ma4 8 30 nmwr 8 55 nb/r 80 usb- 6 ma5 8 31 vssio 8 56 ncd 81 fs- 7 ma6 8 32 nmce 8 57 ncs0 82 rterm 8 ma7 8 33 niow 8 58 vddcore 83 vssa
usb 2.0 flash drive controller datasheet smsc usb97c242 page 9 revision 1.4 (05-03-07) datasheet pin # name ma pin # name ma pin # name ma pin # name ma 9 ma8 8 34 nior 8 59 ncs1 84 xtal1/cl kin 10 ma9 8 35 romen 60 vsscore 85 xtal2 11 ma10 8 36 d0 12 61 ncs2 86 vssp 12 vddcor e 37 d1 12 62 vddio 87 loopflt r 13 ma11 8 38 d2 12 63 ncs3 88 vddp 14 vsscor e 39 vddcor e 64 ncs4 89 gpio1 8 15 vssio 40 d3 12 65 vssio 90 gpio2 8 16 ma12 8 41 vsscor e 66 ncs5 91 gpio3 8 17 ma13 8 42 d4 12 67 ncs6 92 gpio4 8 18 ma14 8 43 vddio 68 ncs7 93 gpio5 8 19 ma15 8 44 d5 12 69 nc 94 gpio6 8 20 vddio 45 d6 12 70 nc 95 gpio7 8 21 md0 8 46 d7 12 71 nc 96 nreset 22 md1 8 47 ale 12 72 nc 97 vssio 23 md2 8 48 vssio 73 nc 98 ntest0 24 md3 8 49 nre 24 74 nc 99 vddio 25 md4 8 50 cle 12 75 nc 100 ntest1
usb 2.0 flash drive controller datasheet smsc usb97c242 page 10 revision 1.4 (05-03-07) datasheet chapter 4 pin configuration nc nc nc nc nc nc nc ncs7 ncs6 ncs5 vssio ncs4 ncs3 vddio ncs2 vsscore ncs1 vddcore ncs0 ncd nb/r nwps nce nwp nwe ma0 ma1 ma2 ma3 ma4 ma5 ma6 ma7 ma8 ma9 ma10 vddcore ma11 vsscore vssio ma12 ma13 ma14 ma15 vddio md0 md1 md2 md3 md4 usb97c242 1 25 51 75 rbias vdda fs+ usb+ usb- fs- rterm vssa xtal1/clkin xtal2 vssp loopfltr vddp gpio1 gpio2 gpio3 gpio4 gpio5 gpio6 gpio7 nreset vssio ntest0 vddio ntest1 cle nre vssio ale d7 d6 d5 vddio d4 vsscore d3 vddcore d2 d1 d0 romen nior niow nmce vssio nmwr nmrd md7 md6 md5 figure 4.1 ? 100 pin tqfp
usb 2.0 flash drive controller datasheet smsc usb97c242 page 11 revision 1.4 (05-03-07) datasheet chapter 5 block diagram flash media dma unit d a t a b u s s usb 2.0 phy ( transciever ) fast 8051 cpu core gpio 7 pins 7 pins configuration and control clock generation xtal sie ( serial interface engine ) program memory/ io bus interrupt controller latch phase 0, 2 sie latch phase 3 8051 latch phase 1 fmc 60mhz 32 bit osc address xdata & sfr address and data busses 64 bytes ep0tx 64 bytes ep0rx 64 bytes ep1tx 64 bytes ep1rx auto address generators address mux data @ 32 bit 15mhz sie control regs address address address address ep0rx_bc ramrd_a/b ep0tx_bc ramwr_a/b 32 bit 15mhz data buss clockout 12 mhz 512 bytes ep2 tx/rx buffer a address register 1.25kb sram 12k byte scratchpad sram clocked byphase 0, 2 clock clocked by phase 3 clock 512 bytes ep2 tx/rx buffer b memory cards scratchpad sram (768 byte) ecc control/ status flash media controller (fmc) sm controller nand flash control/ status mem/io bus 29pins data ep1tx_bc ep1rx_bc address address nand flash sm/ nand flash nand flash cs[7:0] 48kb rom romen nand flash nand flash nand flash nand flash
usb 2.0 flash drive controller datasheet smsc usb97c242 page 12 revision 1.4 (05-03-07) datasheet chapter 6 pin descriptions this section provides a detailed description of each signal. the signal s are arranged in functional groups according to their associated interface. the ?n? symbol in the signal name indicates that the ac tive, or asserted state occurs when the signal is at a low voltage level. when ?n? is not present before the signal name, the signal is a sserted when at the high voltage level. the terms assertion and negation are used exclusively. this is done to avoid confusion when working with a mixture of ?active low? and ?activ e high? signal. the term assert, or assertion indicates that a signal is active, independent of whether that level is represented by a high or low voltage. the term negate, or negation indicates that a signal is inactive. table 6.1 ? usb97c242 pin descriptions name symbol buffer type description nand flash/smartmedia interface sm write protect nwp o12 this pin is an active low write protect signal for the sm or nand flash device. sm address strobe ale o12 this pin is an active high addr ess latch enable signal for the sm or nand flash device. sm command strobe cle o12 this pin is an active high co mmand latch enable signal for the sm or nand flash device. sm data7-0 d[7:0] i/opu12 these pins are the bi-directional data signal d7-d0. the bi-directional input signal should have an internal weak pull-up resister on the input. sm read enable nre o24 this pin is an active low read strobe signal for sm or nand flash device. sm write enable nwe o12 this pin is an active low write strobe signal for sm or nand flash device. sm write protect switch nwps ipu a write-protect seal is det ected, when this pin is low. this pin has an internal weak pull-up resistor. sm busy or data ready nb/r ipu this pin is connected to t he bsy/rdy pin of the sm or nand flash device. this pin has an internal weak pull-up resistor. sm chip enable nce opu8 this pin is the active low chip enable signal to the sm or nand flash device. this pin should be used to support a single sm or nand flash device only.
usb 2.0 flash drive controller datasheet smsc usb97c242 page 13 revision 1.4 (05-03-07) datasheet name symbol buffer type description sm card detection ncd ipu this is the card detection signal fr om sm device to indicate if the device is inserted. this pin has internal weak pull-up resistor. usb interface usb bus data usb- usb+ i/o-u these pins connect to the usb bus data signals. usb transceiver filter loopfltr this pin provides the ability to supplement the inter nal filtering of the transceiver with an external network, if required. usb transceiver bias rbias a precision 9.09k resistor is a ttached from ground to this pin to set the transceiver?s internal bias currents. termination resistor rterm a precision 1.5k resistor is a ttached to this pin from a 3.3v supply. full speed usb data fs- fs+ i/o-u these pins connect to the usb- and usb+ pins through 31.6 ohm series resistors. memory/io interface memory data bus md[7:0] i/opu8 when romen = 0, these si gnals are used to transfer data between the internal cpu and the external program memory. when romen = 1, internal weak pu ll up are activated to prevent these pins from floating. memory address bus ma[15:0] o8 these signals address memory locations within t he external memory. memory read strobe nmwr o8 program memory write; active low memory read strobe nmrd o8 program memory read; active low memory chip enable nmce o8 program memory chip enable; active low. this signal shall be de-asserted, when all of the following conditions are met: idle bit (pcon.0) is 1. int2 is negated sleep bit of clock_sel is 1. this signal shall be asserted whenever any of the three conditions are no longer met. i/o read strobe nior o8 this is a active low i/o read strobe signal of xdata bus. i/o write strobe niow. o8 this is a active low i/o write strobe signal of xdata bus.
usb 2.0 flash drive controller datasheet smsc usb97c242 page 14 revision 1.4 (05-03-07) datasheet name symbol buffer type description misc crystal input/extern al clock input xtal1/ clkin iclkx 12mhz crystal or external clock input. this pin can be connected to one te rminal of the crystal or can be connected to an external 12mhz cl ock when a crystal is not used. crystal output xtal2 oclkx 12mhz crystal this is the other terminal of the crystal, or left open when an external clock source is used to drive xtal1/ clkin. it may not be used to drive any external circuitry other than the crystal circuit. internal romen romen ipu when tied low, an external pr ogram memory should be connected to the memory/data bus. the usb97c242 uses this external bus for program execution. when this pin is left unconnected or tied high, the usb97c242 uses the internal rom for program execution. the state of this pin is latched inte rnally on the rising edge of nreset to determine if internal or exter nal program memory is used. the state latched is stored in ro men bit of gpio_in1 register. general purpose i/o gpio1 i/o8 this pin may be used either as i nput, edge sensitive interrupt input, or output. see chapter 11 for usage by program in internal rom. general purpose i/o gpio2 i/opu8 this pin may be used either as input, edge sensitive interrupt input, or output. see chapter 11 for usage by program in internal rom. general purpose i/o gpio3 i/o8 this pin may be used either as i nput, edge sensitive interrupt input, or output. see chapter 11 for usage by program in internal rom. general purpose i/o gpio[7:4] i/o8 these pins may be used either as input, edge sensitive interrupt input, or output. see chapter 11 for usage by program in internal rom. nand flash chip select signal ncs[7:0] opu8 these pins can be used to chip enable the nand flash devices, when multiple nand flash devices are used. reset input nreset is this active low signal is used by the system to reset the chip. the active low pulse should be at least 100ns wide. test input ntest[0:1] i these signals are used fo r testing the chip. user should normally leave them unconnected. power, grounds, and no connects vdd +2.5v core power vddio +3.3v i/o power vddp +2.5 analog power vssp analog ground reference vdda +3.3v analog power vssa analog ground reference gnd ground reference
usb 2.0 flash drive controller datasheet smsc usb97c242 page 15 revision 1.4 (05-03-07) datasheet note: nmce is normally asserted except when the 8051 is in standby mode. 6.1 buffer type descriptions table 6.2 - usb97c242 buffer type descriptions buffer description i input ipu input with internal weak pull-up resistor. ipd input with internal weak pull-down resistor. is input with schmitt trigger i/o4 input/output with 4ma drive i/od4 input/open drain output ? 4ma sink i/o8 input/output with 8ma drive i/od8 input/open drain output ? 8ma sink i/opd8 input/output with 8ma drive and controlled weak pull down. i/opu8 input/output with 8ma drive and controlled weak pull up. o4 output with 4ma drive o8 output with 8ma drive opd8 output with 8ma drive and controlled weak pull down. opu8 output with 8ma drive and controlled weak pull up. i/o12 output with 12ma drive i/opu12 input/output with 12ma drive and controlled weak pull up on input. opu12 output with 12ma drive and controlled weak pull up. opd12 output with 12ma drive and controlled weak pull down. o12 output with 12ma drive od12 open drain?.12ma sink iclkx xtal clock input oclkx xtal clock output i/o-u defined in usb specification
usb 2.0 flash drive controller datasheet smsc usb97c242 page 16 revision 1.4 (05-03-07) datasheet chapter 7 dc parameters 7.1 maximum guaranteed ratings operating temper ature ra nge.................................................................................................... ....................... 0 o c to +70 o c storage temper ature range ...................................................................................................... ......................-55 o to +150 o c lead temperature range (sol dering, 10 seconds ) ................................................................................. .................... +325 o c positive voltage on any pin, with respec t to ground ............................................................................ ............................ 5.5v negative voltage on any pin, with respect to gr ound............................................................................ ..........................-0.3v maximum v dd, v ddp ............................................................................................................................... .........................+3.0v maximum v ddio, v dda ............................................................................................................................... .......................+4.0v *stresses above the specified parameters could cause permanent damage to the device. this is a stress rating only and functional operation of the dev ice at any other condition above those indica ted in the operation sections of this specification is not implied. note: when powering this device from l aboratory or system power supplies, it is important t hat the absolute maximum ratings not be exceeded or device failure c an result. some power supplies exhibit voltage spikes on their outputs when the ac power is switched on or off. in addition, voltage transients on the ac power line may appear on the dc output. when this possibilit y exists, it is suggest ed that a clamp circuit be used. table 7.1 - dc electrical characteristics (t a = 0c - 70c, v ddio, v dda = +3.3 v 10%, v dd, v ddp = +2.5 v 10%,) parameter symbol min typ max units comments i type input buffer low input level high input level v ili v ihi 2.0 0.8 v v ttl levels iclk input buffer low input level high input level v ilck v ihck 2.2 0.4 v v input leakage (all i and is buffers) low input leakage high input leakage i il i ih -10 -10 +10 +10 ua ua v in = 0 v in = v ddio
usb 2.0 flash drive controller datasheet smsc usb97c242 page 17 revision 1.4 (05-03-07) datasheet parameter symbol min typ max units comments o8 type buffer low output level high output level output leakage v ol v oh i ol 2.4 -10 0.4 +10 v v ua i ol = 8 ma @ v ddio = 3.3v i oh = -4ma @ v ddio = 3.3v v in = 0 to v ddio (note 7.1) i/o8 type buffer low output level high output level output leakage v ol v oh i ol 2.4 -10 0.4 +10 v v a i ol = 8 ma @ v ddio = 3.3v i oh = -4 ma @ v ddio = 3.3v v in = 0 to v ddio (note 7.1) i/o12 type buffer low output level high output level output leakage v ol v oh i ol 2.4 -10 0.4 +10 v v a i ol = 12 ma @ v ddioe = 3.3v i oh = -6ma @ v ddio = 3.3v v in = 0 to v ddio (note 7.1,note 7.3) i/o24 type buffer low output level high output level output leakage v ol v oh i ol 2.4 -10 0.4 +10 v v a i ol = 24 ma @ v ddio = 3.3v i oh = -12 ma @ v ddio = 3.3v v in = 0 to v ddio (note 7.1,note 7.3)
usb 2.0 flash drive controller datasheet smsc usb97c242 page 18 revision 1.4 (05-03-07) datasheet parameter symbol min typ max units comments io-u note 7.2 supply current unconfigured i ccinit 85 60 ma ma @ v dd, v ddp = 2.5v @ v ddio, v dda = 3.3v supply current active i cc 85 60 110 70 ma ma @ v dd, v ddp = 2.5v @ v ddio, v dda = 3.3v supply current standby i csby 150 150 a @ v dd, v ddp = 2.5v @ v ddio, v dda = 3.3v note 7.1 output leakage is measured with the current pins in high impedance. note 7.2 see appendix a for usb dc electrical characteristics. note 7.3 output leakage is valid only on pins without internal weak pull ups or pull downs. 7.1.1 capacitance ta = 25c; fc = 1mhz; vdd, vddp = 2.5v limits parameter symbol min typ max unit test condition clock input capacitance c in 20 pf input capacitance c in 10 pf output capacitance c out 20 pf all pins except usb pins (and pins under test tied to ac ground)
usb 2.0 flash drive controller datasheet smsc usb97c242 page 19 revision 1.4 (05-03-07) datasheet chapter 8 ac specifications refer to the appropriate specification document in the chapter of ?reference? for each flash media device or usb interface.
usb 2.0 flash drive controller datasheet smsc usb97c242 page 20 revision 1.4 (05-03-07) datasheet chapter 9 package outline figure 9.1 ? 100 pin tqfp package outline, 12x12x1.4 body (rev a) table 9.1 ? 100 pin tqfp package parameters (rev a) min nominal max remarks a ~ ~ 1.60 overall package height a1 0.05 ~ 0.15 standoff a2 1.35 ~ 1.45 body thickness d 13.80 ~ 14.20 x span d1 11.80 ~ 12.20 x body size e 13.80 ~ 14.20 y span e1 11.80 ~ 12.20 y body size h 0.09 ~ 0.20 lead frame thickness l 0.45 0.60 0.75 lead foot length l1 ~ 1.00 ~ lead length e 0.40 basic lead pitch 0 o ~ 7 o lead foot angle w 0.13 0.16 0.23 lead width r1 0.08 ~ ~ lead shoulder radius r2 0.08 ~ 0.20 lead foot radius ccc ~ ~ 0.08 coplanarity notes: 1 controlling unit: millimeter. 2 tolerance on the position of t he leads is 0.035 mm maximum. 3 package body dimensions d1 and e1 do not include the mold protrusion. maximum mold protrusion is 0.25 mm. 4 dimension for foot length l measured at the gauge plane 0.25 mm above the seating plane. 5 details of pin 1 identifier ar e optional but must be located within the zone indicated.
usb 2.0 flash drive controller datasheet smsc usb97c242 page 21 revision 1.4 (05-03-07) datasheet chapter 10 reference 1. smartmedia tm electrical specification version 1.30 2. smartmedia tm physical format specifications version 1.30 3. smartmedia tm logical format specifications version 1.20 4. smil (smartmedia interface library) software edit ion version 1.00, toshiba corporation, 01, july, 2000 5. smil (smartmedia interface library) hardware ed ition version 1.00, toshiba corporation, 01, july, 2000 6. k9k2g08u0m, 256mx8 bit nand flash memory data sheet, samsung. 7. universal serial bu s specification rev 2.0
usb 2.0 flash drive controller datasheet smsc usb97c242 page 22 revision 1.4 (05-03-07) datasheet chapter 11 gpio usage table table 11.1 - gpio usage name active level symbol description and note gpio1 h flash media activity led indicates media activity. media or usb cable must not be removed with led lit. active high. gpio2 h ready/busy# 1/4 ready/busy# line from nand flash chips 0, or 0 & 4 gpio3 h v_bus usb v bus dectect gpio4 h ready/busy# for chips 1/5 ready/busy# line from nand flash chips 1, or 1 & 5 gpio5 h hs_ind/ready/busy# 2/ 6 in rom -03; hs_led output indicator; in la ter rom patterns, the ready/busy# line from nand flash chips 2, or 2 & 6 gpio6 h a16 a16 address line when external rom is used; unused output otherwise. gpio7 h ready/busy# 3/7 ready/busy# line from nand flash chips 3, or 3 & 7
usb 2.0 flash drive controller datasheet smsc usb97c242 page 23 revision 1.4 (05-03-07) datasheet chapter 12 typical application contact smsc sales for the latest reference designs and information and details about software licenses and the latest capabilities/features in cluded in current production versi ons of the internal rom.

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