AU6371-JEL
USB2.0 Single LUN
Multiple Flash Card Reader Controller
Technical Reference Manual
AU6371-JEL
USB2.0 Single LUN
Multiple Flash Card Reader Controller
Copyright
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 language, in any form or by any means,
electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without prior
written permission from Alcor Micro, Corp.
Trademark Acknowledgements
The company and product names mentioned in this document may be the trademarks
or registered trademarks of their manufacturers.
Disclaimer
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.
Revision History
Date
Revision
Description
Feb 2007
1.00W
Official release
Apr 2007
1.01W
Modify “5.6 Power Switch Feature”
Sep 2007
1.02W
Modify “5.6 Power Switch Feature”
Dec 2007
1.03W
Modify “1.2 Features”
Contact Information:
Web site: http://www.alcormicro.com/
Taiwan
Alcor Micro, Corp.
4F, No 200 Kang Chien Rd., Nei Hu,
Taipei, Taiwan, R.O.C.
Phone: 886-2-8751-1984
Fax: 886-2-2659-7723
China ShenZhen Office
Rm.2407-08, Industrial Bank Building
No.4013, Shennan Road,
ShenZhen,China. 518026
Phone: (0755) 8366-9039
Fax: (0755) 8366-9101
Santa Clara Office
2901 Tasman Drive, Suite 206
Santa Clara, CA 95054
USA
Phone: (408) 845-9300
Fax: (408) 845-9086
Los Angeles Office
9070 Rancho Park Court
Rancho Cucamonga, CA 91730
USA
Phone: (909) 483-8821
Fax: (909) 944-0464
<Memo>
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 ....... 6
4.1 AU6371 Block Diagram ...............................................................6
5. Electrical Characteristics ...................................... 7
5.1 Absolute Maximum Ratings........................................................7
5.2 Recommended Operating Conditions .......................................7
5.3 General DC Characteristics ........................................................7
5.4 DC Electrical Characteristics of 3.3V I/O Cells..........................7
5.5 USB Transceiver Characteristics ...............................................8
5.6 Power Switch Feature .................................................................11
6. Mechanical Information ......................................... 12
7. Abbreviations ......................................................... 13
i
List of Figures
Figure 2.1 Block Diagram..................................................................2
Figure 3.1 Pin Assignment Diagram ................................................3
Figure 4.1 AU6371 Block Diagram ...................................................6
Figure 5.1 Built-in card power switch I-V curve ..............................11
Figure 5.2 Card Detect Power-on Timing.........................................11
Figure 6.1 Mechanical Information Diagram ...................................12
List of Tables
Table 3.1 Pin Descriptions ................................................................4
Table 5.1 Absolute Maximum Ratings .............................................7
Table 5.2 Recommended Operating Conditions .............................7
Table 5.3 General DC Characteristics..............................................7
Table 5.4 DC Electrical Characteristics of 3.3V I/O Cells ...............8
Table 5.5 Electrical characteristics ..................................................8
Table 5.6 Static characteristic：Digital pin .....................................9
Table 5.7 Static characteristic：Analog I/O pins（DP/DM）..........9
Table 5.8 Dynamic characteristic：Analog I/O pins（DP/DM）.....10
ii
1. Introduction
1.1 Description
The AU6371 is a highly integrated single chip media USB card reader controller that
supports all popular form factor digital cards, such as CF, MD, SMC, SD, MMC, MS,
MS Pro, MS Duo and XD. In addition to the small form factor and low BOM cost the
solution also implement high performance operation a sophisticated DMA engine.
With the compliance with USB Storage Class V1.0, AU6371 not only exhibits wide
acceptance in various OS platforms, its multiple slot design further enables the
solution adapters become the content exchange center for mobile media. It 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
AU6371, users can transfer digital data between flash memory card and PC or these
electronic devices.
The AU6371 used 48 pin package specifically designed for small foot print application,
such as Note book and printer.
In addition to its high performance and outstanding compatibility, the solution of
AU6371 comes with a user-friendly utility to enhance users’ experience. Moreover,
AU6371 integrates power switch to reduce the overall BOM cost.
1.2 Features
Supports USB 2.0 specification and USB Device Class Definition for Mass
Storage, Bulk-Transport V1.0
Supports CF/MD/SD/MMC/MS/MS_Pro/MS_Duo/xD/SMC compatible flash
card in 48 pin package
Supports the latest flash card specification: CF 4.0 (with True IDE PIO mode 6),
SD 2.0 (SDHC), MMC 4.2 (8-bit), MS Pro parallel mode (4-bit), xD 1.2,
SMC2003.
A built-in DMA engine for data transmission performance enhancement
Work with default driver from Windows ME/2000/XP and Mac OS X; Vendor
device driver from Alcor Micro are available to run under Windows
98/2000(SP1/SP2) and Mac OS 9
Ping-pong FIFO implementation for concurrent bus operation
Supports multiple sector burst transfer for optimized performance
Supports Dynamic Icon Utility to enhance user experience
Supports LED for bus activities indication
Power switch integrated to reduce production BOM cost
Support power saving mode for notebook when no card inserted.
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
1
2. Application Block Diagram
The following application drawing demonstrates a typical card reader block diagram
using AU6371. By connecting one card reader to a desktop or notebook PC through
USB bus, the AU6371 becomes a bus-powered, high speed USB card reader, which
can be used as a bridge for data transfer between Desktop PC and Notebook PC.
Figure 2.1 Block Diagram
Digital Camera
MP3 Player
PC with USB Host Controller
PDA
CF/MS/MD/
xD/SMC/SD/
MMC
AU6371
Moble Phones
PC
2
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
3. Pin Assignment
The AU6371 is delivered in 48pin LQFP form factor. Documented below is a figure
shows signal names of each pin and a table in the following page describes each pin
in more details.
Figure 3.1 Pin Assignment Diagram
GND
CHIPRESETN
CFWTN
CARDDATA15
CARDDATA14
CARDDATA13
CARDDATA12
CARDDATA11
CARDDATA10
CARDDATA9
CARDDATA8
CARDDATA7
VDD
48
47
46
45
44
43
42
41
40
39
38
37
1
36
CARDDATA6
REXT
2
35
CARDDATA5
VD33P
3
34
CARDDATA4
DP
4
33
CARDDATA3
DM
5
32
CARDDATA2
VS33P
6
31
CARDDATA1
XI
7
30
CARDDATA0
XO
8
29
GPON6
GNDU
9
28
CONTROLOUT0
VDDU
10
27
CONTROLOUT1
NC
11
26
CONTROLOUT2
NC
12
25
CONTROLOUT3
ALCOR MICRO
AU6371
48PIN LQFP
13
14
15
16
17
18
19
20
21
22
23
24
V18
VDDH
CF_V33
READER_EN
VSSH
MSINS
SMCDN
CFCDN
SDCDN
XDCDN
CONTROLOUT5
CONTROLOUT4
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
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Table 3.1 Pin Descriptions
Pin #
Pin Name
I/O
1
VDD
I
Core Power 1.8V
2
REXT
O
External Resistor to Ground
3
VD33P
4
DP
I/O
USB DP
5
DM
I/O
USB DM
6
VS33P
7
XI
I
12 MHz crystal input.
8
XO
O
12 MHz crystal output.
9
GNDU
UTMI Gound
10
VDDU
UTMI Power 1.8 V
11
NC
12
NC
13
V18
O
Core Power 1.8V
14
VDDH
I
3.3V for IO pad
15
CF_V33
O
Card Power 3.3V
16
READER_EN
I
Reader function enable("1" : Card reader function
enable; "0" : Card only mode)
17
VSSH
IO
Power Ground
18
MSINS
I
MS Card detect
19
SMCDN
I
SMC Card detect
20
CFCDN
I
CF Card detect
21
SDCDN
I
SD Card detect
22
XDCDN
I
XD Card detect
23
CONTROLOUT5
O
CFRESETN and SMWRN/XDWRN
24
CONTROLOUT4
O
CFWRN and SMRDN/XDRDN
25
CONTROLOUT3
O
CFRDN and XDCEN/SMCEN
26
CONTROLOUT2
O
CFAD2 and SMALE/XDALE
27
CONTROLOUT1
O
CFAD1, MSCLK and SMCLE/XDCLE
28
CONTROLOUT0
O
CFAD0, SDCLK and MSBS
29
GPON6
O
LED indicator for card operation
4
Description
3.3V Power
Ground Power
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
Pin #
Pin Name
I/O
Description
30
CARDDATA0
I/O
CFDATA0, MSDATA0,and SDCMD
31
CARDDATA1
I/O
CFDATA1,MSDATA1,XDWPN,and SMWPN
32
CARDDATA2
I/O
CFDATA2,MSDATA2,and SDWP
33
CARDDATA3
I/O
CFDATA3,MSDATA3,SMRBN,and XDRBN
34
CARDDATA4
I/O
CFDATA4 and SDDATA0
35
CARDDATA5
I/O
CFDATA5 and SDDATA1
36
CARDDATA6
I/O
CFDATA6 and SDDATA2
37
CARDDATA7
I/O
CFDATA7 and SDDATA3
38
CARDDATA8
I/O
CFDATA8,XDDATA0, and SDDATA4
39
CARDDATA9
I/O
CFDATA9,XDDATA1, and SDDATA5
40
CARDDATA10
I/O
CFDATA10,XDDATA2, and SDDATA6
41
CARDDATA11
I/O
CFDATA11,XDDATA3, and SDDATA7
42
CARDDATA12
I/O
CFDATA12 and XDDATA4
43
CARDDATA13
I/O
CFDADA13 and XDDATA5
44
CARDDATA14
I/O
CFDATA14 and XDDATA6
45
CARDDATA15
I/O
CFDATA15 & XDDATA7
46
CFWTN
I
CF WAITN
47
CHIPRESETN
I
Chip Reset (low active to reset the whole chip),
must be pull up with RC.
48
GND
I
Core Power Gound
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
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4. System Architecture and Reference
Design
4.1 AU6371 Block Diagram
Figure 4.1 AU6371 Block Diagram
USB
USB
Upstream
Port
XCVR
Processor
1.8V
Voltage
Regulator
/Power Switch
3.3V
6
RAM
SIE
ROM
PLL
CF/MD/SMC/
SD/MMC/MS/
xD Control FIFO
CF
MD
SMC
SD
MMC
MS
xD
Arbitrator
Card
Power
12MHz
XTAL
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
5. Electrical Characteristics
5.1 Absolute Maximum Ratings
Table 5.1 Absolute Maximum Ratings
SYMBOL
PARAMETER
RATING
UNITS
VDDH
Power Supply
-0.3 to 3.6
V
VIN
Input Signal Voltage
-0.3 to VDDH +0.3
V
TSTG
Storage Temperature
-40 to 150
O
C
5.2 Recommended Operating Conditions
Table 5.2 Recommended Operating Conditions
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
VDDH
Power Supply
3.0
3.3
3.6
V
VDD
V18
Digital Supply
1.62
1.8
1.98
V
VIN
Input Signal Voltage
-0.3
VDDH + 0.3
V
TOPR
Operating Temperature
0
85
O
C
5.3 General DC Characteristics
Table 5.3 General DC Characteristics
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IIN
Input current
No pull-up or
pull-down
-10
±1
10
µA
IOZ
Tri-state leakage current
-10
±1
10
µA
CIN
Input capacitance
Pad Limit
2.8
ρF
COUT
Output capacitance
Pad Limit
2.8
ρF
CBID
Bi-directional buffer
capacitance
Pad Limit
2.8
ρF
5.4 DC Electrical Characteristics of 3.3V I/O Cells
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
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Table 5.4 DC Electrical Characteristics of 3.3V I/O Cells
SYMBOL
PARAMETER
CONDITIONS
VDDH
Power supply
3.3V I/O
Vil
Input low voltage
Limits
UNIT
MIN
TYP
MAX
3.0
3.3
3.6
V
0.8
V
LVTTL
Vih
Input high voltage
Vol
Output low voltage
∣Iol∣=2~16mA
Voh
Output high voltage
∣Ioh∣=2~16mA
2.4
Rpu
Input pull-up resistance
PU=high, PD=low
55
75
110
KΩ
Input pull-down resistance PU=low, PD=high
40
75
150
KΩ
-10
±1
10
μA
-10
±1
10
μA
Rpd
Iin
Input leakage current
Ioz
Tri-state output leakage
current
2.0
Vin= VDDH or 0
V
0.4
V
V
5.5 USB Transceiver Characteristics
Table 5.5 Electrical characteristics
Symbol
Parameter
VD33
8
Conditions
Min.
Typ.
Analog supply Voltage
3.0
3.3
3.6
V
VDDU
VDDA
Digital supply Voltage
1.62
1.8
1.98
V
ICC
Operating supply current
55
mA
High speed operating
at 480 MHz
Max. Unit
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
Table 5.6 Static characteristic：Digital pin
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
0.8
V
Input levels
VIL
Low-level input voltage
VIH
High-level input voltage
2.0
V
Output levels
VOL
Low-level output voltage
VOH
High-level output voltage
0.2
V
VDDH-0.2
V
Table 5.7 Static characteristic：Analog I/O pins（DP/DM）
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
VHSDIFF
VHSCM
USB2.0 Transceiver（HS）
Input Levels（differential receiver）
∣VI（DP）-VI（DM）∣
High speed differential
measured at the
300
input sensitivity
connection as
application circuit
High speed data signaling
common mode voltage
-50
range
VHSSQ
High speed squelch
detection threshold
VHSDSC
High speed disconnection
detection threshold
VHSOI
VHSOL
VHSOH
VCHIRPJ
VCHIRPK
RDRV
mV
Squelch detected
No squelch detected
Disconnection
detected
Disconnection not
detected
Output Levels
High speed idle level
output voltage(differential)
High speed low level
output voltage(differential)
High speed high level
output voltage(differential)
Chirp-J output voltage
（differential）
Chirp-K output voltage
（differential）
Resistance
Equivalent resistance
Driver output impedance used as internal chip
only
500
mV
100
mV
150
mV
625
mV
525
mV
-10
10
mV
-10
10
mV
-360
400
mV
700
1100
mV
-900
-500
mV
9
Ω
3
6
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
9
Overall resistance
including external
resistor
Termination
40.5
45
Termination voltage for
pull-up resistor on pin
3.0
RPU
USB1.1 Transceiver（FS）
Input Levels（differential receiver）
Differential input
∣VI（DP）-VI（DM）∣
0.2
sensitivity
Differential common
0.8
mode voltage
Input Levels（single-ended receivers）
Single ended receiver
0.8
threshold
Output levels
VTERM
VDI
VCM
VSE
49.5
3.6
V
V
2.5
V
2.0
V
VOL
Low-level output voltage
0
0.3
V
VOH
High-level output voltage
2.8
3.6
V
Table 5.8 Dynamic characteristic：Analog I/O pins（DP/DM）
Symbol
Parameter
Conditions
Min.
Typ.
Max. Unit
Driver Characteristics
High-Speed Mode
tHSR
tHSF
High-speed differential
rise time
High-speed differential fall
time
500
ps
500
ps
Full-Speed Mode
tFR
tFF
tFRMA
VCRS
10
CL=50pF；10 to 90﹪
of∣VOH-VOL∣；
CL=50pF；90 to 10﹪
Fall time
of∣VOH-VOL∣；
Excluding the first
Differential rise/fall time
transition from idle
matching（tFR / tFF）
mode
Excluding the first
Output signal crossover
transition from idle
voltage
mode
Rise time
4
20
ns
4
20
ns
90
110
％
1.3
2.0
V
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
5.6 Power Switch Feature
I-V Cure of Card Switch
3.250
3.200
3.150
3.100
3.050
CFPWR-B(V)
3.000
2.950
2.900
2.850
0
100
200
300
400
500
Current (mA)
Figure 5.1 Built-in card power switch I-V curve
1ms to 10ms ( Depend
Load Capacitor )
3.3V+/- 0.3V
CARD_POWER
100ms + System
Polling timing
CARD_DETECT
Figure 5.2 Card Detect Power-on Timing
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
11
6. Mechanical Information
Figure 6.1 Mechanical Information Diagram
E
0.25
E1
1
A
GAUGE PLANE
1
D
D
SEATING PLANE
L
L1
12
MIN.
MAX.
-1.6
0.05
0.15
1.35
1.45
0.09
0.16
9.00 BSC
7.00 BSC
9.00 BSC
7.00 BSC
0.5 BSC
0.17
0.27
0.45
0.75
1 REF
A
SYMBOLS
A
A1
A2
c1
D
D1
E
E1
e
b
L
L1
2
A
1
C
b
e
1.
2.
JEDEC OUTLINE: MS-026 BBC
DIMENSIONS D1 AND E1 DO NOT
INCLUDE MOLD PROTRUSION.
ALLOWABLE PROTRUSION IS 0.25mm
PER SIDE. D1 AND E1 ARE MAXIMUM
PLASTIC BODY SIZE DIMENSIONS
IMCLUDING MOLD MISMATCH.
3. DIMENSION b DOES NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL NOT
CAUSE THE LEAD WIDTH TO EXCEED
THE MAXIMUM b DIMENSION BY MORE
THAN 0.08mm
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
7. Abbreviations
In this chapter some of the terms and abbreviations used throughout the technical
reference manual are listed as follows.
SIE
CF
MD
SMC
MS
SD
MMC
UTMI
Serial Interface Engine
Compact Flash
Micro Drive
SmartMedia Card
Memory Stick
Secure Digital
Multimedia Card
USB Transceiver Macrocell Interface
About Alcor Micro, Corp.
Alcor Micro, Corp. designs, develops and markets highly integrated and advanced
peripheral semiconductor, and software driver solutions for the personal computer
and consumer electronics markets worldwide. We specialize in USB solutions and
focus on emerging technology such as USB and IEEE 1394. The company offers a
range of semiconductors including controllers for USB hub, integrated keyboard/USB
hub and USB Flash memory card reader…etc. Alcor Micro, Corp. is based in Taipei,
Taiwan, with sales offices in Taipei, Japan, Korea and California. Alcor Micro is
distinguished by its ability to provide innovative solutions for spec-driven products.
Innovations like single chip solutions for traditional multiple chip products and
on-board voltage regulators enable the company to provide cost-efficiency solutions
for the computer peripheral device OEM customers worldwide.
AU6371-JEL USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.03W
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