Alcor AU9381 Manual del producto
AU9381
USB Flash Disk Controller
Technical Reference Manual
Revision 1.2
© 1997-2003 Alcor Micro Corp.
All Rights Reserved
Copyright Notice
Copyright 1997 - 2003
Alcor Micro Corp.
All Rights Reserved.
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.
Contact Information:
Web site: http://www.alcormicro.com/
Taiwan
Alcor Micro Corp.
4F-1, No 200 Kang Chien Rd., Nei Hu,
Taipei, Taiwan, R.O.C.
Phone: 886-2-8751-1984
Fax: 886-2-2659-7723
Santa Clara Office Los Angeles Office
2901 Tasman Drive, Suite 206 9400 Seventh St., Bldg. A2
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
TABLE OF CONTENTS i
Table of Contents
1.0 Introduction-------------------------------------------------------------------------------------- 1
1.1 Description---------------------------------------------------------------------------------- 1
1.2 Features-------------------------------------------------------------------------------------- 1
2.0 Application Block Diagram----------------------------------------------------------------- 3
3.0 Pin Assignment-------------------------------------------------------------------------------- 5
4.0 System Architecture and Reference Design----------------------------------------- 9
4.1 AU9381 Block Diagram------------------------------------------------------------------ 9
4.2 Sample Schematics------------------------------------------------------------------------ 10
5.0 Electrical Characteristics------------------------------------------------------------------- 13
5.1 Recommended Operating Conditions------------------------------------------------- 13
5.2 General DC Characteristics ------------------------------------------------------------ 13
5.3 DC Electrical Characteristic for 3.3 volts operation ------------------------------- 13
5.4 Crystal Oscillator Circuit Setup for Characteristics ------------------------------ 14
5.5 ESD Test Results -------------------------------------------------------------------------- 15
5.6 Latch-Up Test Results ------------------------------------------------------------------- 16
6.0 Mechanical Information---------------------------------------------------------------------- 19
7.0 Appendix- A-64 Pin LQFP Package ----------------------------------------------------- 21
8.0 Errata ---------------------------------------------------------------------------------------------- 27
TABLE OF CONTENTS i
INTRODUCTION 1
1.0 Introduction
1.1 Description
The AU9381 is a highly integrated single chip USB flash disk controller. It provides the most
cost effective bridge between USB enabled PC and NAND type flash memory. AU9381 can
be used as a removable storage disk in enormous data exchange applications between PC,
Macintosh, laptop and workstation. It can also be configured as a bootable disk for system
repairing .
The AU9381 can work with 1 to 8 NAND type flash memory chip with the combination of
any popular flash memory type - 8M, 16M, 32M, 64M and 128M. Additional features
include write protection switch, activity LED and password protected security .
The AU9381 integrated 48MHz PLL, 3.3V regulator, power on reset circuit and a power
switch for flash memory power control.
1.2 Features
Fully compliant with USB v1.1 specification and USB Device Class Definition for
Mass Storage, Bulk-Transport v1.0
Work with default driver from Windows ME, Windows 2000, Windows XP, Mac
OS 9.1, and Mac OS X. Windows 98se is supported by vendor driver from Alcor.
Multiple FIFO implementation for concurrent bus operation
64-pin package supports to 8 pieces NAND Flash memory chip; total capacity
reaches to 2G byte when working with 1G bit mono dies chip.
48-pin package supports to 4 pieces NAND Flash memory chip; total capacity
reaches to 1G byte.
Support mixed different size NAND Flash
Vendor ID, product ID and strings can be customized by utility software from Alcor
Can be configured to support dual partitions with dynamic logic disk space
allocation.
Security function supported with password protection
LED for bus activity monitoring
Runs at 12MHz, built-in 48 MHz PLL
Built-in 3.3V regulator
Built-in power switch and power management circuit to achieve 500uA suspend
current required by USB specification.
Built-in power on reset circuit
INTRODUCTION 2
Dedicated DMA engine to ensure highest throughput in read and write
48-pin LQFP package as standard package and 64-pin LQFP package for choice.
APPLICATION BLOCK DIAGRAM 3
2.0 Application Block Diagram
Following is the application diagram of a typical flash disk product with AU9381. By
connecting the flash disk to a desktop or notebook PC through USB bus, AU9381 is
implemented as a bus-powered, full speed USB disk, which can be used as a bridge for data
transfer between Desktop PC and Notebook PC.
PC with USB Host Controller
PC with USB Host Controller
NotebookwithUSBHost Controller
APPLICATION BLOCK DIAGRAM 4
PIN ASSIGNMENT 5
3.0 Pin Assignment
The AU9381 is packed in 48-pin LQFP form factor. The figure on the following page shows
the signal names for each of the pins on the chip. Accompanying the figure is the table that
describes each of the pin signals.
1
2
3
5
4
6
7
8
10
9
11
33
32
31
29
30
34
46 45 44 43 42
12
35
36
28
27
26
25
41 40 39 38 374748
13 14 15 16 17 18 19 20 21 22 23 24
VCCA
GNDA
XTAL1
XTAL2
VCC2FM
VCC5V
VCCIO
RSTN
USB_DP
USB_DM
GNDIO
Reserved
FMWPN
FMWRN
FMALE
FMCLE
FMCE1N
FMCE2N
FMRDN
FMRBN
GPON7
Reserved
NC
Reserved GPON6
FMCE3N
FMCE4N
VCCK
GNDK
CT3
CT4
CT2
Reserved
NC
CT1
Reserved
Reserved
FMDATA4
FMDATA5
FMDATA6
FMDATA7
FMDATA0
FMDATA1
FMDATA2
FMDATA3
Reserved
Reserved
Reserved
ALCOR MICRO
AU9381
48PIN LQFP
PIN ASSIGNMENT 6
Table 3-1. Pin Descriptions
Pin Pin Name I/O Type Description
1 VCCA PWR 3.3V input for PLL
2 GNDA PWR Ground
3 XTAL1 I Crystal Oscillator Input (12MHz)
4 XTAL2 O Crystal Oscillator Output (12MHz)
5 VCC2FM O Connect to Flash Memory VCC
6 VCC5V PWR 5V power supply
7 VCCIO PWR Regulator 3.3V output/ IO 3.3V input
8 RSTN I Hardware reset (Active Low)
9 USB_DP I/O USB D+
10 USB_DM I/O USB D-
11 GNDIO PWR Ground
12 Reserved Reserved
13 Reserved Reserved
14 FMWPN I Connect to Flash Memory Write Protect
15 FMWRN O Connect to Flash Memory Write Enable
16 FMALE O Connect to Flash Memory Address Latch Enable
17 FMCLE O Connect to Flash Memory Command Latch Enable
18 FMCE1N O Connect to Flash Memory Chip1 Enable
19 FMCE2N O Connect to Flash Memory Chip2 Enable
20 FMRDN O Connect to Flash Memory Read Enable
21 FMRBN I Connect to Flash Memory Ready/Busy Output
22 GPON7 O General Purpose Output pin, used as activity LED
23 Reserved Reserved
24 NC
25 GPON6 O Floating
26 FMCE3N O Connect to Flash Memory Chip3 Enable
27 FMCE4N O Connect to Flash Memory Chip4 Enable
28 VCCK PWR Core 3.3V Input
29 GNDK PWR Ground
30 CT3
Connect to VCC
31 CT4 Connect to ground
32 CT2 Connect to ground
33 CT1 Connect to ground
34 Reserved Connect to ground
35 Reserved Connect to ground
Tabla de contenidos
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