AU6372
USB2.0 Single LUN
Multiple Flash Card Reader Controller
Technical Reference Manual
AU6372
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
Dec 2007
1.00W
Description
Official release
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 AU6372 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..........................8
5.5 USB Transceiver Characteristics ...............................................8
6. Mechanical Information ......................................... 11
7. Abbreviations ......................................................... 12
i
List of Figures
Figure 2.1 Block Diagram..................................................................2
Figure 3.1 Pin Assignment Diagram ................................................3
Figure 4.1 AU6372 Block Diagram ...................................................6
Figure 6.1 Mechanical Information Diagram ...................................11
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 AU6372 is a highly integrated single chip media USB card reader controller that
supports all popular form factor digital cards, such as 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, AU6372 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
AU6372, users can transfer digital data between flash memory card and PC or these
electronic devices.
The AU6372 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
AU6372 comes with a user-friendly utility to enhance users’ experience. Moreover,
AU6372 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 SD/MMC/MS/MS_Pro/MS_Duo/xD/SMC compatible flash card in 48
pin package
Support SD spec up to ver.2.0 (SDHC)
Support MMC spec up to ver.4.2
Support MS 1.43 / MSPRO 1.04. MSPRO-HG compatible with 4-bit interface.
Support xD 1.2 / SM 2003
A built-in DMA engine for data transmission performance enhancement
Work with default driver from Windows ME/2000/XP and Mac OS.
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 solution
AU6372 USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.00W
1
2. Application Block Diagram
The following application drawing demonstrates a typical card reader block diagram
using AU6372. By connecting one card reader to a desktop or notebook PC through
USB bus, the AU6372 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
MS/xD/
SD/MMC
AU6372
Moble Phones
PC
2
AU6372 USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.00W
3. Pin Assignment
The AU6372 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
CHIPRESETN
CARDDATA15
CARDDATA14
CARDDATA13
CARDDATA12
CARDDATA11
CARDDATA10
CARDDATA9
CARDDATA8
EEPDATA
EEPCLK
GPI6
PWRSAVE
48
47
46
45
44
43
42
41
40
39
38
37
1
36
CARDDATA7
GND
2
35
CARDDATA6
VDDHM
3
34
CARDDATA5
VDD
4
33
CARDDATA4
REXT
5
32
CARDDATA3
VD33P
6
31
CARDDATA2
DP
7
30
CARDDATA1
DM
8
29
CARDDATA0
VS33P
9
28
GPON6
XI
10
27
CONTROLOUT0
XO
11
26
CONTROLOUT1
VDDU
12
25
CONTROLOUT2
ALCOR MICRO
AU6372
48PIN LQFP
13
14
15
16
17
18
19
20
21
22
23
24
EXT48IN
V18
VDDH
CF_V33
VSSH
MSINS
SMCDN
SDCDN
XDCDN
CONTROLOUT5
CONTROLOUT4
CONTROLOUT3
AU6372 USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.00W
3
Table 3.1 Pin Descriptions
Pin #
Pin Name
I/O
1
PWRSAVE
I
2
GND
I
3
VDDHM
4
VDD
5
REXT
6
VD33P
7
DP
I/O
USB DP
8
DM
I/O
USB DM
9
VS33P
10
XI
I
12 MHz crystal input.
11
XO
O
12 MHz crystal output.
12
VDDU
13
EXT48IN
14
V18
O
Core Power 1.8V
15
VDDH
I
3.3V for IO pad
16
CF_V33
O
Card Power 3.3V
17
VSSH
IO
18
MSINS
I
19
SMCDN
I
20
SDCDN
I
21
XDCDN
I
22
CONTROLOUT5
O
Power Ground
MS Card detect, Pull down when suspend
otherwise Pull Up
SMC Card detect, Pull down when suspend
otherwise Pull Up
SD Card detect, Pull down when suspend
otherwise Pull Up
XD Card detect, Pull down when suspend
otherwise Pull Up
XDWRN
23
CONTROLOUT4
O
XDRDN
24
CONTROLOUT3
O
XDCEN
25
CONTROLOUT2
O
XDALE
26
CONTROLOUT1
O
MSCLK and XDCLE
27
CONTROLOUT0
O
28
GPON6
O
SDCLK and MSBS
LED ON for card exists,LED Off when card not
exists or in suspend mode when Full speed mode
("1": Exist; "0": Nonexist)
29
CARDDATA0
I/O
MSDATA0,and SDCMD
30
CARDDATA1
I/O
MSDATA1,XDWPN
4
Description
"0" is enable ; "1" is disable
Core Power Gound
3.3V for IO pad
Core Power 1.8V
O
External Resistor 330 to Ground
3.3V Power
Ground Power
UTMI Power 1.8 V
Reserved for 48MHz input
AU6372 USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.00W
Pin #
Pin Name
I/O
Description
31
CARDDATA2
I/O
MSDATA2,and SDWP
32
CARDDATA3
I/O
MSDATA3 and XDRBN
33
CARDDATA4
I/O
SDDATA0
34
CARDDATA5
I/O
SDDATA1
35
CARDDATA6
I/O
SDDATA2
36
CARDDATA7
I/O
37
GPI6
I
38
EEPCLK
I
SDDATA3
NOT_CIS_CHECK_DETECTION ("1":Disable xD
CIS_CHECK; "0":Enable xD CIS_CHECK)
EEPROM serial clock.
39
EEPDATA
O
EEPROM for PID,VID customization.
40
CARDDATA8
I/O
XDDATA0, and SDDATA4
41
CARDDATA9
I/O
XDDATA1, and SDDATA5
42
CARDDATA10
I/O
XDDATA2, and SDDATA6
43
CARDDATA11
I/O
XDDATA3, and SDDATA7
44
CARDDATA12
I/O
XDDATA4
45
CARDDATA13
I/O
XDDATA5
46
CARDDATA14
I/O
XDDATA6
47
CARDDATA15
I/O
48
CHIPRESETN
I
XDDATA7
ResetN (low active to reset the whole chip), must
be pull up with RC.
AU6372 USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.00W
5
4. System Architecture and Reference
Design
4.1 AU6372 Block Diagram
Figure 4.1 AU6372 Block Diagram
USB
USB
Upstream
Port
XCVR
Processor
1.8V
Voltage
Regulator
/Power Switch
3.3V
6
RAM
SIE
ROM
SD/MMC/MS
/xD/SMC Control
FIFO
SD
MMC
MS
xD
SMC
Arbitrator
PLL
12MHz
XTAL
48MHz
In
AU6372 USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.00W
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
3.3
3.6
V
TOPR
Operating Temperature
0
O
85
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
AU6372 USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.00W
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5.4 DC Electrical Characteristics of 3.3V I/O Cells
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
AU6372 USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.00W
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
AU6372 USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.00W
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
AU6372 USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.00W
6. Mechanical Information
Figure 6.1 Mechanical Information Diagram
E
0.25
E1
1
A
GAUGE PLANE
1
D
D
SEATING PLANE
L
L1
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
AU6372 USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.00W
11
7. Abbreviations
In this chapter some of the terms and abbreviations used throughout the technical
reference manual are listed as follows.
SIE
MS
SD
MMC
UTMI
Serial Interface Engine
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.
12
AU6372 USB 2.0 Single LUN Multiple Flash Card Reader Controller V1.00W