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a u6337 usb2.0 sd/mmc/ms single/dual lun card reader controller t e c hnical r e f e r ence manual
AU6337 usb2.0 sd/mmc/ms single/dual lun card reader controller
c c o o p p y y r r i i g g h h t t copyright ? 1997 - 2007. alcor micro, corp. all rights reserved. no part of this data sheet may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer l anguage, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without prior written permission from alcor micro, corp. t t r r a a d d e e m m a a r r k k a a c c k k n n o o w w l l e e d d g g e e m m e e n n t t s s the company and product names mentioned in this document may be the trademarks or registered trademarks of their manufacturers. d d i i s s c c l l a a i i m m e e r r alcor micro, corp. reserves the right to change this product without prior notice. alcor micro, corp. makes no warranty for the use of its products and bears no responsibility for any error that appear in this document. specifications are subject to change without prior notice. r r e e v v i i s s i i o o n n h h i i s s t t o o r r y y date revision description july 2007 1.00w official release. c c o o n n t t a a c c t t i i n n f f o o r r m m a a t t i i o o n n : : web site: http://www.alcormicro.com/ taiwan china shenzhen office alcor micro, corp. rm.2407-08, industrial bank building 4f, no 200 kang chien rd., nei hu, no.4013, shennan road, taipei, taiwan, r.o.c. shenzhen,china. 518026 phone: 886-2-8751-1984 phone: (0755) 8366-9039 fax: 886-2-2659-7723 fax: (0755) 8366-9101 santa clara office los angeles office 2901 tasman drive, suite 206 9070 rancho park court santa clara, ca 95054 rancho cucamonga, ca 91730 usa usa phone: (408) 845-9300 phone: (909) 483-9900 fax: (408) 845-9086 fax: (909) 944-0464

i table of contents 1. introduction ............................................................ 1 1.1 description ...................................................................................1 1.2 features ........................................................................................1 2. application block diagram ................................... 2 3. pin assignment ...................................................... 3 4. system architecture and reference design ....... 10 4.1 AU6337 block diagram ...............................................................10 5. electrical characteristics ...................................... 11 5.1 absolute maximum ratings ........................................................11 5.2 recommended operating conditions .......................................11 5.3 general dc characteristics ........................................................11 5.4 dc electrical characteris tics of 3.3v i/o cells ..........................12 5.5 usb transceiver characteristics ...............................................12 5.6 power switch feature .................................................................16 6. mechanical information ......................................... 17 7. abbreviations ......................................................... 19
ii list of figures figure 2.1 block diagram ..................................................................2 figure 3.1 48 lqfp (gbl) pin assignment diagram ......................3 figure 3.2 28ssop (gbs) pin assignment diagram ......................6 figure 3.3 28ssop (gcs) pin assignment diagram ......................8 figure 4.1 AU6337 block diagram ...................................................10 figure 5.1 card dete ct power-on timing .........................................16 figure 6.1 48 lqfp mechanical information diagram ....................17 figure 6.2 28 ssop mechanic al information diagram ...................18 list of tables table 3.1 48 lqfp (gbl) pin descriptions ......................................4 table 3.2 28ssop (gbs) pin descriptions ......................................7 table 3.3 28ssop (gcs) pin descriptions ......................................9 table 5.1 absolute maximum ratings .............................................11 table 5.2 recommended operating conditions .............................11 table 5.3 general dc characteristics ..............................................11 table 5.4 dc electrical characteristics of 3.3v i/o cells ...............12 table 5.5 electrical characteristics ..................................................12 table 5.6 static characteristic digital pin .....................................13 table 5.7 static characteristic analog i/o pins dp/dm ..........13 table 5.8 dynamic characteristic analog i/o pins dp/dm .....14
AU6337 usb 2.0 sd/mmc/ms single/dual lu n flash memory card reader v1.00w 1 1. introduction 1 1 . . 1 1 d d e e s s c c r r i i p p t t i i o o n n AU6337 is an usb2.0 high-speed transmission controller, which is designed as a bridge between usb and sd/ms compatible flash card interface, such as sd, hs-sd, mmc, hs-mmc, rs-mmc, mmcmicro, ms , ms pro and ms duo?etc. AU6337 can read digital contents stored on memory card designed to cover a wide area of applications such as digital cameras, pdas, mp3 players and smart phones?etc. with the AU6337, users can transfer digital data between flash memory card and pc or other electronic devices. AU6337 inherits the high-performance and cost-efficiency character from alcor?s products, included power switch integration, dynamic icon utility support, and dma engine integration. 1 1 . . 2 2 f f e e a a t t u u r r e e s s support usb v2.0 specification and usb device class definition for mass storage, bulk-transport v1.0 support sd/mmc/ms compatible flash card support the latest flash card specific ation: sd2.0 (sdhc), mmc4.2 (8-bit), mspro parallel mode (4-bit) alcor dma engine integrated for performance enhancement work with default driver from windows me/2000/xp/vista and mac os x; windows 98/2000(sp1/sp2) and mac os 9 are supported by vendor driver from alcor. ping-pong fifo implementation for concurrent bus operation support multiple sectors transfer optimize performance support slot-to-slot read/write operation (dual lun) support dynamic icon utility support led for bus operating indication power switch integrated to reduce production bom cost 5 3.3 and 3.3 1.8v regulators built in 48-pin package for two slots (sd and ms) 28-pin package for single slot (sd or ms)
au633 7 usb 2.0 sd/mmc/ms single/dual lun fla s h memory ca rd re ade r v1 .00w 2 2. application block diagram the followin g applicatio n drawing demonstrates a typical ca rd reader block diagram using AU6337. by connecting one card reader t o a desktop or noteboo k pc through usb bus, th e AU6337 b e comes a bus-powered, high speed usb card reader , which can be used as a bridge for dat a transfer between desktop pc and notebook pc. figure 2.1 block diagram pc wi th usb h o s t co nt r o l l e r us b f l a s h m e m o ry c a rd re ad e r mo bl e p h o n e s pda mp3 pl aye r d i g i t a l c a m era sd/ mmc/ m s pc
au633 7 usb 2.0 sd/mmc/ms single/dual lu n fla s h memory ca rd re ade r v1 .00w 3 3. pin assignment there are th ree dif f erent form factor p a ckages available to ch oose from. t he following figure show s sign al na mes for each pin and th e t able in th e p age af ter describes e a ch pin in det ails. figure 3.1 48 lqfp (gbl) pin assignment diagram vdd 1 2 3 5 4 6 7 8 10 9 11 33 32 31 29 30 34 46 45 4 4 4 3 42 12 35 36 28 27 26 25 41 4 0 39 3 8 37 47 48 13 14 15 16 1 7 1 8 19 20 2 1 22 2 3 24 alco r micr o a u 63 37 -gb l 48 pin lq fp sdd a t a 5 ms i n s sdd a t a 0 gp i3 sdclk gp i2 rs t n g p on7 ms b s gp i0 gn d sddata6 sdcdn vdd33c ms_ v 33 sd_v33 sdcmd sddata1 sdwp sddata3 sddata4 sddata2 g p on6 sd data7 msdata0 msdata1 msdata3 msc l k msdata2 rea d er mod e vd dhm avd d5v v18 vssh m vd d3v eep c lk eppda t a re xt vd33p dp dm vs 33p xi xo vs 33p vddu ag nd5v
AU6337 usb 2.0 sd/mmc/ms single/dual lun flash memory card reader v1.00w 4 table 3.1 48 lqfp (gbl) pin descriptions pin # pin name i/o description 1 eepclk o eeprom serial clock. 2 eppdata i/o eeprom for pid,vid customization. 3 rext i external resistor 330 to ground 4 vd33p i connected to 3.3v 5 dp i/o dp signal for usb 6 dm i/o dm signal for usb 7 vs33p i connected to ground 8 xi i 12 mhz crystal input. 9 xo o 12 mhz crystal output. 10 vs33p i connected to ground 11 vddu i connected to 1.8v 12 agnd5v i ground 13 avdd5v i 5v input 14 vdd3v o internal regulator 3.3v output 15 v18 o internal regulator 1.8v output 16 vddhm i 3.3v input for io 17 readermode i "0" for normal, "1" for high-z 18 vsshm i ground 19 msdata1 i/o ms data1. (suspend output mode and databus is zero) 20 msdata0 i/o ms data0. (suspend output mode and databus is zero) 21 msdata2 i/o ms data2. (suspend output mode and databus is zero) 22 msdata3 i/o ms data3. (suspend output mode and databus is zero) 23 msclk o ms serial protocol clock. (suspend iobus is zero) 24 sddata7 i/o sd data 7 25 sddata6 i/o sd data 6 26 sdcdn i sd card detect, low active 27 vdd33c i card power switch 28 ms_v33 o ms card power
AU6337 usb 2.0 sd/mmc/ms single/dual lu n flash memory card reader v1.00w 5 pin # pin name i/o description 29 sd_v33 o sd card power 30 sdcmd i/o sd command 31 sddata1 i/o sd data 1 32 sdwp i sd write protect 33 sddata2 i/o sd data 2 34 gpon6 o card access led 35 sddata3 i/o sd data 3 36 sddata4 i/o sd data 4 37 sddata5 i/o sd data 5 38 msins i ms stick insertion/extraction detect. 39 sddata0 i/o sd data 0 40 gpi3 i nc 41 sdclk o sd clock 42 gpi2 i current value. '0' for 100ma. '1' for 250ma. [default]: '0' 43 rstn i reset (low active to reset the whole chip), must be pull up with rc. 44 gpon7 o power led 45 msbs o ms protocol bus state. (suspend iobus is zero) 46 gpi0 i lun mode select '1' for share 1lun '0' for 2lun 47 gnd i ground 48 vdd i 1.8v input
au633 7 usb 2.0 sd/mmc/ms single/dual lun fla s h memory ca rd re ade r v1 .00w 6 the followin g figure sho w s signal na mes of each pin of the 8 0 -pin p a cka ge and the t able in the p age af ter describes e a c h pin in det ails. figure 3.2 28ssop (gbs) pin assignment diagram 1 2 3 4 5 6 7 8 9 10 11 12 17 28 27 26 25 24 23 22 21 20 19 18 13 14 16 15 gp i0 gnd vd d rext vd3 3 p dp dm vs 3 3 p xi xo vd d u ag n d 5v av d d 5v vd d 3 v v18 vddhm vs shm sdcd n vdd3 3c sd_v33 sdcmd sddat a 1 sdwp sddat a 2 cl ed sddat a 3 sddat a 0 sdcl k alcor m i cro AU6337-gbs 28-pin ssop
AU6337 usb 2.0 sd/mmc/ms single/dual lu n flash memory card reader v1.00w 7 table 3.2 28ssop (gbs) pin descriptions pin # pin name i/o description 1 gpi0 i reserved. always connect to 3.3v on pcb 2 gnd i core ground 3 vdd i core 1.8v power input 4 rext i external resistor 330 to ground 5 vd33p i utmi 3.3v power input 6 dp i/o usb dp 7 dm i/o usb dm 8 vs33p i utmi 3.3v ground 9 xi i 12mhz crystal input 10 xo o 12mhz crystal output 11 vddu i utmi 1.8v input 12 agnd5v i 5 to 3.3 regulator ground 13 avdd5v i 5 to 3.3 regulator 5v input 14 vdd3v o 5 to 3.3 regulator 3.3v output 15 v18 o 3.3 to 1.8 regulator 1.8v output 16 vddhm i io 3.3v power / 3.3 to 1.8 regulator 3.3v input 17 vsshm i io 3.3v ground 18 sdcdn i sd card detect 19 vdd33c i card power switch 3.3v input 20 sd_v33 o card power switch output 21 sdcmd i/o sd command 22 sddata1 i/o sd data 1 23 sdwp i sd write protect 24 sddata2 i/o sd data 2 25 cled o card access led 26 sddata3 i/o sd data 3 27 sddata0 i/o sd data 0 28 sdclk o sd clock
au633 7 usb 2.0 sd/mmc/ms single/dual lun fla s h memory ca rd re ade r v1 .00w 8 the followin g figure sho w s signal na mes of each pin of the 8 0 -pin p a cka ge and the t able in the p age af ter describes e a c h pin in det ails. figure 3.3 28ssop (gcs) pin assignment diagram 1 2 3 4 5 6 7 8 9 10 11 12 17 28 27 26 25 24 23 22 21 20 19 18 13 14 16 15 ee pdat a rext vd3 3 p dp dm vs 3 3 p xi xo vd d u ag n d 5v av d d 5v vd d 3 v v1 8 vd d h m vs shm msdat a 1 msdat a 0 msdat a 2 msdat a 3 mscl k vdd3 3c m s _v33 cl ed msins msb s gp i0 vdd ee pcl k alcor m i cro au 6337-g c s 28-pin ssop
AU6337 usb 2.0 sd/mmc/ms single/dual lu n flash memory card reader v1.00w 9 table 3.3 28ssop (gcs) pin descriptions pin # pin name i/o description 1 eepdata i/o eeprom data 2 rext i external resistor 330 to ground 3 vd33p i utmi 3.3v power input 4 dp i/o usb dp 5 dm i/o usb dm 6 vs33p i utmi 3.3v ground 7 xi i 12mhz crystal input 8 xo o 12mhz crystal output 9 vddu i utmi 1.8v input 10 agnd5v i 5 to 3.3 regulator ground 11 avdd5v i 5 to 3.3 regulator 5v input 12 vdd3v o 5 to 3.3 regulator 3.3v output 13 v18 o 3.3 to 1.8 regulator 1.8v output 14 vddhm i io 3.3v power / 3.3 to 1.8 regulator 3.3v input 15 vsshm i io 3.3v ground 16 msdata1 i/o memory stick data1 17 msdata0 i/o memory stick data0 18 msdata2 i/o memory stick data2 19 msdata3 i/o memory stick data3 20 msclk o memory clock 21 vdd33c i card power switch 3.3v input 22 ms_v33 o card power switch output 23 cled o card access led 24 msins i 25 msbs o memory stick bs 26 gpi0 i reserved. always connect to 3.3v on pcb 27 vdd i core 1.8v power input 28 eepclk o eeprom clock
4. system architecture and reference design 4 4 . . 1 1 a a u u 6 6 3 3 3 3 7 7 b b l l o o c c k k d d i i a a g g r r a a m m figure 4.1 AU6337 block dia g ram 5v 1. 8 v 3.3v vo l t a g e re g u l a t o r 12mhz xtal xcvr usb sie ram processor arbitrator rom sd/mmc /ms control fifo sd mmc ms usb upstream po r t au633 7 usb 2.0 sd/mmc/ms single/dual lun fla s h memory ca rd re ade r v1 .00w 10
5. electrical characteristics 5 5 . . 1 1 a a b b s s o o l l u u t t e e m m a a x x i i m m u u m m r r a a t t i i n n g g s s table 5.1 absolute maximum ratings symbol parameter rating units v ddhm v dd33c power supp ly -0.3 to v ddh +0.3 v v in input signal v o lt age -0.3 to 3.6 v v out output signal v o lt age -0.3 to v ddh +0.3 v t stg s t orage t e mperature -40 to 150 o c 5.2 reco mmended oper at ing con d itions table 5.2 recommended operating conditions symbol parameter min typ max units a vdd5v 5v power supply 4.75 5.0 5.0 v v ddhm v dd33c power supp ly 3.0 3.3 3.6 v v dd v 18 digit a l supply 1.62 1.8 1.98 v v in input signal v o lt age 0 3.3 3.6 v t opr operating t e mperature 0 85 o c 5 5 . . 3 3 g g e e n n e e r r a a l l d d c c c c h h a a r r a a c c t t e e r r i i s s t t i i c c s s table 5.3 general d c characteristics symbol parameter conditi o ns min typ max units i in input curren t no pull-up or p ull-down -10 1 10 a i oz t r i-st ate lea k age current -10 1 10 a c in input cap a cit ance pad limit 2.8 f c out output cap a cit ance pad limit 2.8 f c bid bi-directiona l buf fer ca p acit ance pad limit 2.8 f au633 7 usb 2.0 sd/mmc/ms single/dual lu n fla s h memory ca rd re ade r v1 .00w 11
5 5 . . 4 4 d d c c e e l l e e c c t t r r i i c c a a l l c c h h a a r r a a c c t t e e r r i i s s t t i i c c s s o o f f 3 3 . . 3 3 v v i i / / o o c c e e l l l l s s table 5.4 dc electrical charac teristics of 3.3v i/o cells limit s symbol parameter conditi o ns min ty p max unit v ddhm v dd33c power supply 3.3v i/o 3.0 3.3 3.6 v v il input low volt age 0.8 v v ih input high volt age l v ttl 2.0 v v ol output low volt age O i ol O =2~16ma 0.4 v v oh output high volt age O i oh O =2~16ma 2.4 v r pu input pull-up resist ance pu=high, pd=low 55 75 1 10 k r pd input pull-do wn resist ance pu=low , pd=high 40 75 150 k i in input leakag e current v in = v ddhm or 0 -10 1 10 a i oz t r i-st ate output leakage current -10 1 10 a 5 5 . . 5 5 u u s s b b t t r r a a n n s s c c e e i i v v e e r r c c h h a a r r a a c c t t e e r r i i s s t t i i c c s s table 5.5 electrical characteristics symbol paramete r condit ion s min. typ. max. unit vd33p analog supp ly v o lt age 3.0 3.3 3.6 v vdd v18 digit a l supply v o lt age 1.62 1.8 1.98 v i cc operating supply current high speed operating at 480 mhz 5 5 m a i cc (s us p) suspend su pply current in suspend mode, current with 1.5k pull-up resistor on pin rpu disconnected 1 2 0 a au633 7 usb 2.0 sd/mmc/ms single/dual lun fla s h memory ca rd re ade r v1 .00w 12
table 5.6 static characteristic digital pin symbol paramete r condit ion s min. typ. max. unit input levels v il low-level input volt age 0.8 v v ih high-level input volt age 2.0 v output levels v ol low-level output volt age 0.2 v v oh high-level output volt age vddhm-0.2 v table 5.7 static characteristic analog i/o pins dp/dm symbol paramete r condit ion s min. typ. max. unit usb2.0 t r a n sceiver hs input levels dif f erentia l receiver v hsdi ff high speed dif f erential input sensitivity O v i dp -v i dm O measured at the connection as application circuit 3 0 0 m v v hscm high speed dat a signaling common mo de volt age range - 5 0 5 0 0 m v squelch det ected 100 mv v hssq high speed squelch detection thr e shold no squelch detected 150 mv disconnection detected 6 2 5 m v v hsdsc high speed disconnectio n detection thr e shold disconnection not detected 5 2 5 m v output leve l s v hsoi high speed idle level output volt age(dif f erential) - 1 0 1 0 m v v hsol high speed low level output volt age(dif f erential) - 1 0 1 0 m v v hsoh high speed high level output volt age(dif f erential) - 3 6 0 4 0 0 m v v chi rpj chirp-j output volt age dif f erentia l 7 0 0 1 1 0 0 m v v chi rpk chirp-k output volt age dif f erentia l - 9 0 0 - 5 0 0 m v resist ance r dr v driver outpu t impedance equivalent resist ance used as inte rnal chip only 3 6 9 au633 7 usb 2.0 sd/mmc/ms single/dual lu n fla s h memory ca rd re ade r v1 .00w 13
o v e r a l l resist a n c e including ext e rnal resistor 4 0 . 5 4 5 4 9 . 5 t e rmination v term t e rmination volt age for pull-up resistor on pin rpu 3 . 0 3 . 6 v usb1.1 t r a n sceiver fs/ls input levels dif f erentia l receiver v di dif f erential input sensitivity O v i dp -v i dm O 0 . 2 v v cm dif f erential common mode volt ag e 0 . 8 2 . 5 v input levels single-en ded receivers v se single ende d receiver threshold 0 . 8 2 . 0 v output levels v ol low-level output volt age 0 0.3 v v oh high-level output volt age 2.8 3.6 v table 5.8 dynamic characteristic analog i/o pins dp/dm symbol paramete r condit ion s min. typ. max. unit driver characteristics high-s peed mode t hsr high-speed dif f erential rise time 5 0 0 p s t hsf high-speed dif f erential f a ll time 5 0 0 p s full-s peed mode t fr rise time cl=50pf 10 to 90 of O v oh -v ol O 4 2 0 n s t ff fall time cl=50pf 90 to 10 of O v oh -v ol O 4 2 0 n s t frma dif f erential r i se/fall t i me matching t fr / t ff excluding the first transition fro m idle mode 9 0 1 1 0 v crs output signal crossover volt age excluding the first transition fro m idle mode 1 . 3 2 . 0 v low-s peed mode t lr rise time cl=200pf-600pf 10 to 90 of O v oh -v ol O 7 5 3 0 0 n s au633 7 usb 2.0 sd/mmc/ms single/dual lun fla s h memory ca rd re ade r v1 .00w 14
t lf fall time cl=200pf-600pf 90 to 10 of O v oh -v ol O 7 5 3 0 0 n s t lrma dif f erential r i se/fall t i me matching t lr / t lf excluding the first transition fro m idle mode 8 0 1 2 5 v crs output signal crossover volt age excluding the first transition fro m idle mode 1 . 3 2 . 0 v v oh high-level output volt age 2.8 3.6 v au633 7 usb 2.0 sd/mmc/ms single/dual lu n fla s h memory ca rd re ade r v1 .00w 15
5 5 . . 6 6 p p o o w w e e r r s s w w i i t t c c h h f f e e a a t t u u r r e e AU6337 integrates a 5v to 1.8v volt a ge regulator and power switch to re place all mos chip s for flash card power supply . card pow e r output current range for sd/mmc/ms max : 200 ma card power output volt age range ms/sd/mmc: 3.3v 0.3 v AU6337 will turn of f all of card power in suspend mode figure 5.1 card det e ct power-on timing au633 7 usb 2.0 sd/mmc/ms single/dual lun fla s h memory ca rd re ade r v1 .00w 16
6. mechanical information figure 6.1 48 lqfp mechanical information diagram b e ? ? ? ? ? l1 l 0 . 2 5 g a u g e pl an e seat in g pl an e ? ? e1 e ? s y mbo l s min. max. a -- 1 . 6 a1 0.05 0 . 15 a2 1.35 1 . 45 c 1 0.09 0 . 16 d 9 . 00 bsc d 1 7 . 00 bsc e 9 . 00 bsc e 1 7 . 00 bsc e 0. 5 b s c b 0.17 0 . 27 l 0.45 0 . 75 l1 1 r e f 1. je dec out l i n e: ms -02 6 b b c 2. di men s ion s d 1 a n d e 1 do no t in c l u d e m o l d pr o t r u s i o n . al l o w a bl e pro t rusio n is 0 . 2 5 m m p e r si de. d1 a n d e 1 a r e m a x i m u m pl a s t ic bo dy s i z e d i m e n s io n s im c l u d in g m o l d m i s m a t c h . 3. di men s ion b does n o t i n c l ude d a mbar pro t ru sion . al l o w a bl e d a mbar pro t ru sion s h al l n o t caus e t h e le a d w i d t h t o exc e ed t h e ma x i m u m b di mens ion b y more t h a n 0.08 mm au633 7 usb 2.0 sd/mmc/ms single/dual lu n fla s h memory ca rd re ade r v1 .00w 17
figure 6.2 28 ssop mechanical information diagram symbo l s min n o m max. a -- -- 2 . 0 a 1 0.0 5 - - a2 1 . 65 1.7 5 1. 8 5 b 0 . 22 - 0. 3 8 c 0 . 09 - 0. 2 5 d 10.0 5 1 0 . 2 0 10 .50 e 7.4 0 7.80 8.20 e 1 5.0 0 5.30 5.60 e 0.6 5 bs c l 0.5 5 0.75 0.95 r 0.0 9 - - ? 0 4 8 uni t : mm 1. j e de c o u t l ine : m s -02 6 b b c 2 . d i me n s i o ns d1 a n d e 1 do no t in c l u d e m o l d pro t ru si o n . al l o w a bl e p r o t rusio n is 0 . 25 mm p e r sid e . d1 a n d e 1 a r e m a x i m u m pl astic b o d y s i ze di m e ns i o ns im c l uding mo l d m i s m a t ch . 3 . di m e ns ion b d o es no t i n cl ud e da mbar p r o t r u sion . al l o w a bl e da mbar p r o t ru sio n sh a l l no t c a u s e t h e l e ad w i d t h t o exc e ed t he ma x i mu m b d i m e ns i o n b y m o r e th an 0 . 0 8 mm au633 7 usb 2.0 sd/mmc/ms single/dual lun fla s h memory ca rd re ade r v1 .00w 18
7. abbreviations in this chap ter some of the terms and abbreviations used throughout the technical reference manual are listed as follow s . sie serial interf ace engine sd secure digit a l ms memor y s t ic k mm c multimedia card utmi usb t r ansceiv er m a crocell interfa c e about alcor micro, corp. alcor micro, corp. designs, develo p s and market s highly integrated a nd advanced peripheral semiconduct o r , and sof t ware driver solution s f o r the personal computer and consu m er electronics market s worldwide. w e spe c ia lize in usb solution s a nd focus on emerging technology such as usb and ieee 1394. the comp an y of fers a range of semiconductors including controllers fo r usb hub, integrated keyboard/usb hub and usb flash memory card reader?etc. alcor micro, corp. is ba sed in t a ipe i , t a iwan, wit h sales of fices in t a ip ei, jap an, korea and california. alcor micro is distinguishe d by it s ability to provide i nnovative solution s f o r spec-driv en product s . innovations like sing le chip solutions for traditional multiple chip p r oduct s and on-board vo lt age regulators enable the comp an y to provide cost-ef f icien c y solutions for the computer periphe ral device oem custome r s worldwide. au633 7 usb 2.0 sd/mmc/ms single/dual lu n fla s h memory ca rd re ade r v1 .00w 19

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