Alcor Micro AU9382 Product manual

AU9382
USB Flash Disk Controller
Technical Reference Manual
Revision 1.0
© 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: [phone]
Fax: [phone]
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: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]

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----------------------------------------- 7
4.1 AU9382 Block Diagram------------------------------------------------------------------ 7
4.2 Sample Schematics------------------------------------------------------------------------ 8
5.0 Electrical Characteristics------------------------------------------------------------------- 9
5.1 Recommended Operating Conditions------------------------------------------------- 9
5.2 General DC Characteristics ------------------------------------------------------------ 9
5.3 DC Electrical Characteristic for 3.3 volts operation ------------------------------- 9
5.4 Crystal Oscillator Circuit Setup for Characteristics ------------------------------ 10
5.5 ESD Test Results -------------------------------------------------------------------------- 11
5.6 Latch-Up Test Results ------------------------------------------------------------------- 12
6.0 Mechanical Information---------------------------------------------------------------------- 15
7.0 Appendix----------------------------------------------------------------------------------------- 17
7.1 48-PIN LQFP Pin Assignment -------------------------------------------------------------- 17
7.2 Pin Descriptions ----------------------------------------------------------------------------- 18
7.3 Schematics ---------------------------------------------------------------------------------- 20

TABLE OF CONTENTS i

INTRODUCTION 1
1.0 Introduction
1.1 Description
The AU9382 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. AU9382 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 .
AU9382 works with 2 NAND type flash memory chips with the combination of popular flash
memory types such as 8M, 16M, 32M, 64M and 128M. Additional features include write
protection switch, activity LED and password-protected security .
AU9382 integrates 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
 Supports 2 pieces NAND type Flash memory chips; total capacity reaches to 512 M
byte when working with 2G bit mono dies chip.
 Support mixed different size combination of NAND type flash chips.
 Vendor ID, product ID and strings can be customized by utility software provided by
Alcor Micro
 Can be configured to support dual partitions with dynamic logic disk space
allocation.
 Can be configured as “removable” or “HDD” type disk by utility software as
customers’ requirement.
 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
 Packed in 28-pin SSOP form.

2.0 Application Block Diagram
Following is the application diagram of a typical flash disk product with AU9382. By
connecting the flash disk to a desktop or notebook PC through USB bus, AU9382 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
Notebook with USB Host Controller
APPLICATION BLOCK DIAGRAM 3

APPLICATION BLOCK DIAGRAM 4

3.0 Pin Assignment
The AU9382 is packed in 28-pin SSOP 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
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Alcor Micro
AU9382
28-pin SSOP
LED
FMWPN
VCC2FM
VCC5V
VCCIO
USB_DM
USB_DP
GNDIO
FMWRN
FMALE
XTAL1
XTAL2
VCCA
GND VCCK
FMCLE
FMCE1N
FMCE2N
FMRDN
FMRBN
FMDATA4
FMDATA5
FMDATA6
FMDATA7
FMDATA0
FMDATA1
FMDATA2
FMDATA3
PIN ASSIGNMENT 5

PIN ASSIGNMENT 6
Table 3-1. Pin Descriptions
Pin No. Pin Name Pin Type Description
1 LED O General Purpose Out, used as activity LED.
2 FMWPN I
Flash memory write protect. Connected to on board flash memory write protect
switch. 0: write protected, 1: no write protection.
3 VCC2FM PWR Flash memory power supply, 3.3V. Connect to Flash Memory Vcc.
4 VCC5V PWR 5V power supply from USB connector.
5 VCCIO PWR
Internally regulated 3.3V power supply output. It is used to pull up USB_DP
externally, as well as being the power supply for VCCK and VCCA.
6 USB_DM I/O USB D-.
7 USB_DP I/O USB D+.
8 GNDIO PWR I/O Ground.
9 FMWRN O Flash Memory Write Enable. 0: write enabled, 1: write disabled.
10 FMALE O Flash Memory Address Latch Enable. 0: address latch closed, 1: address latch open.
11 XTAL1 I Crystal Oscillator Input (12MHz).
12 XTAL2 O Crystal Oscillator Output (12MHz).
13 VCCA PWR Analog 3.3V input.
14 GND PWR Ground.
15 VCCK PWR Core 3.3V Input.
16 FMCLE O
Flash Memory Command Latch Enable. 0: command latch closed, 1: command
latch open.
17 FMCE1N O Flash Memory Chip1 Enable. 0: disable, 1: enable.
18 FMCE2N O Flash Memory Chip2 Enable. 0: disable, 1: enable.
19 FMRDN O Flash Memory Read Enable. 0: read enable, 1: read disable.
20 FMRBN I Flash Memory Ready/Busy. 0: busy, 1: ready.
21 FMDATA4 I/O Flash Memory Data4.
22 FMDATA5 I/O Flash Memory Data5.
23 FMDATA6 I/O Flash Memory Data6.
24 FMDATA7 I/O Flash Memory Data7.
25 FMDATA0 I/O Flash Memory Data0.
26 FMDATA1 I/O Flash Memory Data1.
27 FMDATA2 I/O Flash Memory Data2.
28 FMDATA3 I/O Flash Memory Data3.