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AU9472R2: 产品描述Microprocessor Circuit, PQFP64; 产品类别嵌入式处理器和控制器微控制器和处理器; 文件大小445KB，共31页; 制造商安国国际(ALCOR); 官网地址http://www.alcormicro.com/; 安国于1999年正式在台成立，其专业团队来自于美国硅谷，专精设计、制造、行销各种高度整合的IC设计与软件解决方案，以求提供全球各地客户实时的技术支持与服务及与晶圆代工厂之密切配合。安国早期深耕于集线器控制芯片领域，并于2000年发表首款USB键盘集线器控制芯片－AU9432，同时获得Apple iMAC键盘所采用。

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AU9472R2概述

Microprocessor Circuit, PQFP64

AU9472R2规格参数

参数名称	属性值
包装说明	QFP, QFP64,.47SQ,20
Reach Compliance Code	unknown
JESD-30 代码	S-PQFP-G64
端子数量	64
封装主体材料	PLASTIC/EPOXY
封装代码	QFP
封装等效代码	QFP64,.47SQ,20
封装形状	SQUARE
封装形式	FLATPACK
电源	3.3,5 V
认证状态	Not Qualified
表面贴装	YES
端子形式	GULL WING
端子节距	0.5 mm
端子位置	QUAD
uPs/uCs/外围集成电路类型	MICROPROCESSOR CIRCUIT
Base Number Matches	1

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AU9472 R2

Multimedia USB Keyboard Hub

Technical Reference Manual

Revision 2.1

1998-2003 Alcor Micro Corp.

Table of Contents

1.0

Introduction---------------------------------------------------------------------------------------

1.1 Description-----------------------------------------------------------------------------------

1.2 Features---------------------------------------------------------------------------------------

2.0

3.0

4.0

Application Block Diagram------------------------------------------------------------------

- Assignment---------------------------------------------------------------------------------

System Architecture and Reference Design-------------------------------------------

AU9472 R2 Block Diagram---------------------------------------------------------------

4.1

----

4.2 Sample Schematics-------------------------------------------------------------------------

4.3 Keyboard Hub EEPROM Sample Value----------------------------------------------

---------

4.4 Sample Key Matrix Layout Table-------------------------------------------------------

5.0

Electrical Characteristics--------------------------------------------------------------------

Absolute Maximum Rating---------------------------------------------------------------

5.1

5.2 Recommended Operating Conditions--------------------------------------------------

5.3 General DC Characteristics--------------------------------------------------------------

5.4 DC Electrical Characteristic for 5 volts operation-----------------------------------

5.5 DC Electrical Characteristic for 3.3 volts operation--------------------------------

5.6 Crystal Oscillator Circuit Setup for Characteristics--------------------------------

5.7 USB Transceiver Characteristics--------------------------------------------------------

5.8 ESD Test Results----------------------------------------------------------------------------

5.9 Latch-Up Test Results---------------------------------------------------------------------

6.0

Mechanical Information-----------------------------------------------------------------------

TABLE OF CONTENTS

1.0 Introduction

1.1 Description

The AU9472 R2 is an integrated USB keyboard and 2 port hub controller chip. The AU9472

R2 has a built-in default keyboard matrix, so that it can be directly connected to an 18 x 8

keyboard matrix. The keyboard matrix can be customized via an optional external 1024-byte

serial EEPROM. Downstream ports can be used to connect various USB peripheral devices,

such as USB printers, modems, scanners, cameras, mice, and joysticks to the system without

adding external glue logic. It also supports multimedia volume control, CD/DVD Play/Pause,

Stop, Eject, Mute and general purpose shortcut keys such as Internet, email and help.

This single chip integration makes the AU9472 R2 the most cost effective hub/keyboard

solution available in the market.

1.2 Features

Fully compliant with the Universal Serial Bus Specification, version 1.1

USB hub design is compliant with Universal Serial Bus Hub Specification, revision 1.1

USB keyboard design is compliant with USB Device Class Definition for Human

Interface Devices (HID), Firmware Specification, version 1.1

Single chip integration of USB keyboard, hub, ACPI and multimedia control functions

Integrated USB hub supports two bus-powered downstream ports

Patent-pending, table-driven SCANTABLE? technology for easy customization to

different keyboard matrix up to 18x8.

Support rotary encoder for multimedia volume control

Support CD/DVD Play/Pause, Fast Forward, Rewind, Stop, Eject, Mute (up to 24 keys)

Additional general purpose keys for internet, email, help…shortcuts, up to 16 keys.

Additional 2 general purpose LEDs

Support ACPI compliant suspend/shutdown key

If necessary, USB vendor ID, product ID, and keyboard scan code table can be

customized via optional external EEPROM.

Built-in 3.3v voltage regulator allows single +5V operating voltage drawing directly from

USB bus. This results in reduced overall system cost.

Optional gang-powered control pin for downstream port.

Runs at 12Mhz frequency

Available in 64-pin LQFP package.

INTRODUCTION

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