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AU6984
USB2.0 Universal Flash Disk Controller
Technical Reference Manual
Table of Contents
1. Introduction ............................................................ 1
1.1 Description...................................................................................1 1.2 Features........................................................................................1
2. Application Block Diagram ................................... 3 3. Pin Assignment ...................................................... 4
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4. System Architecture and Reference Design ....... 10
4.1 AU6984 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 Characteristics of 3.3V I/O Cells..........................12 5.5 USB Transceiver Characteristics ...............................................12
6. Mechanical Information ......................................... 16 7. Abbreviations ......................................................... 18
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List of Figures
Figure 2.1 Block Diagram..................................................................3 Figure 3.1 AU6984-MHL Pin Assignment Diagram .........................4 Figure 3.2 AU6984-MIL Pin Assignment Diagram...........................7 Figure 4.1 AU6984 Block Diagram ...................................................10 Figure 6.1 48 LQFP Mechanical Information Diagram....................16 Figure 6.2 64 LQFP Mechanical Information Diagram....................17
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List of Tables
Table 3.1 AU6984-MHL Pin Descriptions .........................................5 Table 3.2 AU6984-MIL Pin Descriptions...........................................8 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 characteristicDigital pin .....................................13 Table 5.7 Static characteristicAnalog I/O pinsDP/DM..........13
Table 5.8 Dynamic characteristicAnalog I/O pinsDP/DM .............14
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1. Introduction
1.1 Description
The AU6984 USB 2.0 Flash Disk Controller is the best high performance solutions for SLC (Single- Level Cell), MLC (Multi-Level Cell) NAND and AG-AND with multiple dies data flash. Its high-speed read (30MB/Sec) and write access performance enable users to transfer and backup data effectively. Besides, AU6984 is certified by USB-IF (USB Implementers Forum), WHQL (Window Hardware Quality Labs) and EMI tests to guarantee the quality and reliability for end-users. With multiple functions integrated into one chip and external components built inside, AU6984 is pledged to deliver the best performance benchmark and to further reduce the BOM cost of end products adopting this solution. It provides dual channel access and ISP (In-System Programming) technologies, which are the most important features to allow manufacturers building high performance UFD easily and to have the flexibility of adopting different source of flash chips. Same as its siblings of product family, AU6984 features the auto-run function to prompt the designated AP automatically when plugging into PC. In addition to being as a removable storage device, AU6984 can also be configured as a bootable disk for system recovery. Also, its random access performance exceed the minimum requirement of Read Boost feature found in Microsoft Vista operating system, in which randomly access blocks of information are saved into UFD for boosting up the average performance. To enhance the usefulness and manageability of UFD further, Alcor Micro develops a smart application program iStar (Partition/Password Operation Tool) as a handy utility in managing partition, password and security. Having iStar as the companion of UFD, the data in a UFD could be protected from unauthorized access successfully.
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1.2 Features
PCBs are pin compatible in AU6980, AU6981, AU6982, AU6983, AU6984. Integrate build-in regulator Supports SLC and MLC dual channel with high performance Supports 4K/Page SLC and MLC dual channel with high performance Integrates hardware DMA engine to tune up the operation performance Improve read performance reach 30MB/Sec Supports firmware upgrade mechanism(ISP,In-System Programming) Integrates hardware DMA engine to tune up the operation performance Integrates multi-bit ECC correction mechanism Complies with the standards defined in USB v2.0, USB Device Class Definition for Mass Storage and Bulk-Transport v1.0 Works with default driver under the environments of Windows ME, Windows 2000, Windows XP, Mac 9.2, Mac OS X. Using Alcor Micro's vendor driver for the environment under Windows 98SE Concurrent bus operation using multiple FIFO for better performance Integrates into flash memory power control switch Supports bad block management Supports dynamic serial number modification via mass production software
Supports software write protection
Support Auto Run function Support erasable and read-only mode AP Disk Companion application program with UFD - iStar available for users
AU6984 USB2.0 Universal Flash Disk Controller V0.9 1
To have UFD partition management function To do password protection for the security in data access To guard data files with software write protection function To lock up PC by UFD as the key Available in 48-pin LQFP 7x7mm package to support 4CE pin flashx2pcs Available in 64-pin LQFP 7x7mm package to support 4CE pin flashx4pcs
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2. Application Block Diagram
The following figure shows the application diagram of a typical flash disk product with AU6984. By connecting the flash disk to a desktop or notebook PC through USB bus, AU6984 is then turned into a bus-powered, high speed USB disk, which can be used as a bridge for data transfer between Desktop PC and Notebook PC.
Figure 2.1 Block Diagram
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AU6984 USB2.0 Universal Flash Disk Controller V0.9
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3. Pin Assignment
Depending on the application, the AU6984 is available in two different packages. Below figure shows signal name for each pin and the table in the page after describes each pin in detail.
Figure 3.1 AU6984-MHL Pin Assignment Diagram
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FMDATL2 FMDATL3 FMDATL6 FMDATL7 FMDATL1 FMDATL4 FMDATL0 FMDATL5 FMRBN3 FMRBN0 48 GND
1
FMCLE
FMALE 46
47
45
44
43
42
41
40
39
38
37 36 FMWRN FMRDN
VDD DM
2
35
3
34
FMDATH0
DP REXT VD33 VS33P
4
33
FMDATH1
5 6
32
FMDATH2 FMDATH3
7 8
ALCOR MICRO AU6984-MHL 48PIN LQFP
IX
31
30
FMDATH4 FMDATH5
VSSA
29 28
XI
9
FMDATH6
XO
10 11
27
FMDATH7
AGND5V
12 13 14 15 16 17 18 19 20 21 22 23 24
25
4
AU6984 USB2.0 Universal Flash Disk Controller V0.9
2NBRMF
VDDA
26
FMRBN1
FMWP
AVDD5V
VDD3V
V18
VDD33C
VDDH
VSSH
GPO0
FMENABN3
FMENABN2
FMENABN1
FMENABN0
Table 3.1 AU6984-MHL Pin Descriptions Pin #
1 2 3 4 5
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Pin Name
GND VDD DM DP REXT VD33 VS33P VSSA XI XO VDDA AGND5V AVDD5V VDD3V V18 VDD33C VDDH VSSH GPO0 FMWP FMENABN3 FMENABN2 FMENABN1 FMENABN0 FMRBN1 FMRBN2 FMDATH7 FMDATH6 FMDATH5 FMDATH4 FMDATH3
I/O
I/ GND I I/O I/O I I GND GND I O I I I O O O I I O I O O O O I I I/O I/O I/O I/O I/O
Description
"1" Force Chip into USB 1.1 operation mode Ground 1.8V power USB DM USB DP External resistor 330 to ground 3.3V power Ground Ground 12 MHz oscillator input 12 MHz oscillator output 1.8V power for PLL Ground 5V input power pin 3.3V output power pin 1.8V output for Core 3.3V output for flash chip 3.3V input power pin Ground '1' AND Flash, '0' NAND flash blanking when system access Reserved for firmware Flash 3 select pin Flash 2 select pin Flash 1 select pin Flash 0 select pin Flash 1 ready pin Flash 2 ready pin Flash high data 7 pin Flash high data 6 pin Flash high data 5 pin Flash high data 4 pin Flash high data 3 pin
5
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
AU6984 USB2.0 Universal Flash Disk Controller V0.9
Pin #
32 33 34 35 36 37
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Pin Name
FMDATH2 FMDATH1 FMDATH0 FMRDN FMWRN FMDATL7 FMDATL6 FMDATL5 FMDATL4 FMDATL3 FMDATL2 FMDATL1 FMDATL0 FMCLE FMALE FMRBN3 FMRBN0
I/O
I/O I/O I/O O O I/O I/O I/O I/O I/O I/O I/O I/O O O I I
Description
Flash high data 2 pin Flash high data 1 pin Flash high data 0 pin Flash read signal Flash write signal Flash low data 7 pin Flash low data 6 pin Flash low data 5 pin Flash low data 4 pin Flash low data 3 pin Flash low data 2 pin Flash low data 1 pin Flash low data 0 pin Flash command latch pin Flash address latch pin Flash 3 ready pin Flash 0 ready pin
38 39 40 41 42 43 44 45 46 47 48
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AU6984 USB2.0 Universal Flash Disk Controller V0.9
The following figure shows signal name of each pin in 64-pin package and the table in the page after describes each pin in detail.
Figure 3.2 AU6984-MIL Pin Assignment Diagram
FMDATAL0 FMDATAL1 FMDATAL2 FMDATAL3 FMDATAL4 FMDATAL5 FMDATAL6
05
FMRBN0
FMRBN3
AU6984 USB2.0 Universal Flash Disk Controller V0.9
33
23
13
03
92
82
72
62
52
42
32
22
12
02
91
81
71
61
VDDA
43
51
XO
53
41
XI
63
31
VSSA
73
21
VS33P
83
11
VD33
93
01
REXT
04
9
DP
14
8
DM
24
7
VDD
ALCOR MICRO AU6984-MIL 64PIN LQFP
34
6
GND
44
5
FMENABN5
54
4
FMENABN4
64
3
NC
74
2
NC
84
1
NC
94
15
25
35
45
55
65
75
85
95
06
16
26
36
46
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FMCLE
FMALE
NC
NC
NC
NC
FMDATAL7
FMWRN FMRDN FMDATAH0 FMDATAH1 FMDATAH2 FMDATAH3 FMDATAH4 FMDATH5 FMDATH6 FMDATH7 FMRBN2 FMRBN1 NC NC NC NC
AGND5V
AVDD5V
VDD3V
VDD33C
VDDHM
VSSHM
GPO0
FMWP
FMENABN3
FMENABN2
FMENABN1
FMENABN0
NC
V18
FMENABN7
FMENABN6
7
Table 3.2 AU6984-MIL Pin Descriptions Pin #
1 2 3 4 5
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Pin Name
NC NC NC FMENABN4 FMENABN5 GND VDD DM DP REXT VD33 VS33P VSSA XI XO VDDA AGND5V AVDD5V VDD3V V18 VDD33C VDDHM VSSHM FMENABN7 FMENABN6 GPO0 FMWP FMENABN3 FMENABN2 FMENABN1 FMENABN0 NC NC NC NC
I/O
NC NC NC O O I/GND I I/O I/O I I GND GND I O I I I O O O I I O O O I O O O O I I I Flash 4 select pin Flash 5 select pin
Description
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
"1" Force Chip into USB 1.1 operation mode/Ground 1.8V power USB DM USB DP External resistor 330 to ground 3.3V power Ground Ground 12 MHz oscillator input 12 MHz oscillator output 1.8V power for PLL Ground 5V input power pin 3.3V output power pin 1.8V output for Core 3.3V output for flash chip 3.3V input power pin Ground/ '1' AND Flash, '0' NAND flash Flash 7 select pin Flash 6 select pin blanking when system access Reserved for firmware Flash 3 select pin Flash 2 select pin Flash 1 select pin Flash 0 select pin NC Hardware test T0 Hardware test T1 Hardware test T2
AU6984 USB2.0 Universal Flash Disk Controller V0.9
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Pin #
36 37 38 39 40 41 42
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Pin Name
NC FMRBN1 FMRBN2 FMDATH7 FMDATH6 FMDATH5 FMDATH4 FMDATH3 FMDATH2 FMDATH1 FMDATH0 FMRDN FMWRN FMDATL7 FMDATL6 FMDATL5 FMDATL4 FMDATL3 FMDATL2 FMDATL1 FMDATL0 FMCLE FMALE FMRBN3 FMRBN0 NC NC NC NC
I/O
I I I/O I/O I/O I/O I/O I/O I/O I/O O O I/O I/O I/O I/O I/O I/O I/O I/O O O I I Flash 1 ready pin Flash 2 ready pin
Description
Flash high data 7 pin Flash high data 6 pin Flash high data 5 pin Flash high data 4 pin Flash high data 3 pin Flash high data 2 pin Flash high data 1 pin Flash high data 0 pin Flash read signal Flash write signal Flash low data 7 pin Flash low data 6 pin Flash low data 5 pin Flash low data 4 pin Flash low data 3 pin Flash low data 2 pin Flash low data 1 pin Flash low data 0 pin Flash command latch pin Flash address latch pin Flash 3 ready pin Flash 0 ready pin NC NC NC NC
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
AU6984 USB2.0 Universal Flash Disk Controller V0.9
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4. System Architecture and Reference Design
4.1 AU6984 Block Diagram
Figure 4.1 AU6984 Block Diagram
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USB Upstream Port
XCVR
USB SIE
Flash FIFO
RAM
FM control &ECC
Support NAND Flash Memory
1.8V 1.8V Voltage Regulator
Processor
ROM
SRAM
3.3 V
5V 12MHz XTAL
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AU6984 USB2.0 Universal Flash Disk Controller V0.9
5. Electrical Characteristics
5.1 Absolute Maximum Ratings
Table 5.1 Absolute Maximum Ratings Symbol
VDDH VIN
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Parameter
Power Supply Input Signal Voltage Output Signal Voltage Storage Temperature
Rating
-0.3 to VDDH +0.3 -0.3 to 3.6 -0.3 to VDDH +0.3 -40 to 150
Units
V V V
O
VOUT TSTG
C
5.2 Recommended Operating Conditions
Table 5.2 Recommended Operating Conditions Symbol
ADD VDDH VDD VIN TOPR
Parameter
5V Power Supply Power Supply Digital Supply Input Signal Voltage Operating Temperature
Min.
4.75 3.0 1.62 0 0
Typ.
5.0 3.3 1.8 3.3
Max.
5.0 3.6 1.98 3.6 70
Units
V V V V
O
C
5.3 General DC Characteristics
Table 5.3 General DC Characteristics Symbol
IIN IOZ CIN COUT CBID
Parameter
Input current Tri-state leakage current Input capacitance Output capacitance Bi-directional buffer capacitance
Conditions
No pull-up or pull-down
Min.
-10 -10
Typ. Max.
1 1 10 10
Units
A A F F F
Pad Limit Pad Limit Pad Limit
2.8 2.8 2.8
AU6984 USB2.0 Universal Flash Disk Controller V0.9

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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 Limits Symbol Parameter Conditions Min. Typ. Max.
VDDH Vil Vih
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Unit
V V V
Power supply Input low voltage
3.3V I/O LVTTL
3.0
3.3
3.6 0.8
Input high voltage
2.0
Rpu Rpd Iin Ioz
Input pull-up resistance
PU=high, PD=low
Input pull-down resistance PU=low, PD=high Input leakage current Tri-state output leakage current Vin= VDDH or 0
5.5 USB Transceiver Characteristics
Table 5.5 Electrical characteristics Symbol
VD33 VDDU VDDA ICC
Parameter
Analog supply Voltage Digital supply Voltage Operating supply current
Conditions
Min.
3.0 1.62
Typ.
3.3 1.8
Max. Unit
3.6 1.98 55 V V mA
ICC (susp)
High speed operating at 480 MHz In suspend mode, current with 1.5k Suspend supply current pull-up resistor on pin RPU disconnected
120
12
AU6984 USB2.0 Universal Flash Disk Controller V0.9
-10
1
10
Voh
Output high voltage
Vol
Output low voltage
Iol
=2~16mA 2.4 55 40 -10 75 75 1
0.4
V V
Ioh =2~16mA
110 150 10
K K A A
A
Table 5.6 Static characteristicDigital pin Symbol Parameter Conditions
Input levels VIL VIH Low-level input voltage High-level input voltage Output levels
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Min.
Typ.
Max.
Unit
0.8 2.0
V V
VOL VOH
Low-level output voltage High-level output voltage VDDH-0.2
0.2
V V
VD33=3.0V~3.6VVDDU,VDDA=1.62V~1.98VTemp=0~70
Table 5.7 Static characteristicAnalog I/O pinsDP/DM Symbol Parameter Conditions Min. Typ. Max. Unit
USB2.0 TransceiverHS Input Levelsdifferential receiver VI DP -VI DM High speed differential measured at the 300 input sensitivity connection as application circuit High speed data signaling -50 common mode voltage range High speed squelch detection threshold High speed disconnection detection threshold Squelch detected No squelch detected Disconnection detected Disconnection not detected Output Levels 150 625 525
VHSDIFF
VHSCM
VHSSQ
VHSDSC
VHSOI VHSOL VHSOH VCHIRPJ VCHIRPK
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
-10 -10 -360 700 -900
AU6984 USB2.0 Universal Flash Disk Controller V0.9
13
RDRV
3

6

mV
500 100
mV mV mV mV mV
10 10 400 1100 -500
mV mV mV mV mV

9
Overall resistance including external resistor Termination VTERM
40.5
45
49.5
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VCM
VSE VOL VOH
Low-level output voltage High-level output voltage
VD33=3.0V~3.6VVDDU,VDDA=1.62V~1.98VTemp=0~70 Table 5.8 Dynamic characteristicAnalog I/O pinsDP/DM Symbol Parameter Conditions Driver Characteristics High-Speed Mode tHSR tHSF High-speed differential rise time High-speed differential fall time Full-Speed Mode CL=50pF10 to 90 ofVOH-VOL CL=50pF90 to 10 Fall time ofVOH-VOL Excluding the first Differential rise/fall time transition from idle matchingtFR / tFF mode Excluding the first Output signal crossover transition from idle voltage mode Rise time Low-Speed Mode tLR Rise time CL=200pF-600pF 10 to 90of VOH-VOL 75 300 ns 500 500 ps ps
VCRS
1.3
2.0
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AU6984 USB2.0 Universal Flash Disk Controller V0.9

tFRMA
tFF
tFR

VDI
Termination voltage for pull-up resistor on pin 3.0 RPU USB1.1 TransceiverFS/LS Input Levelsdifferential receiver Differential input VI DP -VI DM 0.2 sensitivity Differential common 0.8 mode voltage Input Levelssingle-ended receivers Single ended receiver 0.8 threshold Output levels 0 2.8
3.6
V
V 2.5 V
2.0 0.3 3.6
V V V

Min.
Typ.
Max.
Unit
4 4 90
20 20 110
ns ns
V
tLF
Fall time Differential rise/fall time matchingtLR / tLF Output signal crossover voltage High-level output voltage
VCRS VOH
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1.3 2.8
2.0 3.6
AU6984 USB2.0 Universal Flash Disk Controller V0.9
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tLRMA
CL=200pF-600pF 90 to 10of VOH-VOL Excluding the first transition from idle mode Excluding the first transition from idle mode
75
300
ns
80
125
V V
6. Mechanical Information
Figure 6.1 48 LQFP Mechanical Information Diagram
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AU6984 USB2.0 Universal Flash Disk Controller V0.9
Figure 6.2 64 LQFP Mechanical Information Diagram
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AU6984 USB2.0 Universal Flash Disk Controller V0.9
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7. Abbreviations
In this chapter some of the terms and abbreviations used throughout the technical reference manual are listed as follows. DC Electrical PLL ECC XTAL UFD iStar Direct Current Electrical Phase Lock Loop, which is a closed-loop frequency control system. Error Checking and Correcting Crystal USB Flash Disk Partition/Password Operation Tool - the smart application program developed by Alcor Micro as a companion handy tool for managing the UFD.
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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.
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AU6984 USB2.0 Universal Flash Disk Controller V0.9

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