AU6331 Datasheet, PDF (6/23 Pages) List of Unclassifed Manufacturers – USB2.0 SD/MMC/MS Single/Dual LUN Card Reader Controller

1.0 Introduction
1.1 Description
AU6331 is an USB2.0 transmission controller, which is designed as an interface
bridge between USB host and SD/MS compatible flash card, such as SD, HS-SD,
MMC, HS-MMC, RS-MMC, MMCmicro, MS, MS Pro and MS Duo…etc. AU6331 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 AU6331, users can transfer digital data between flash memory card and PC
or other electronic devices.
AU6331 inherits the distinguishing characteristic from Alcor’s products, be
integrated MOS switch for power supply to flash card, dynamic icon utility support,
extreme low BOM cost, etc.
1.2 Features
Support USB V2.0 specification and USB Device Class Definition for Mass
Storage, Bulk-Transport V1.0
Support SD/MMC/MS compatible flash card
Work with default driver from Windows ME/2000/XP and Mac OS X; Windows
98/2000(SP1/SP2) and Mac OS 9 are supported by vendor driver from Alcor.
Ping-pong FIFO implementation for concurrent bus operation
Support multiple sectors transfer optimize performance
Support slot-to-slot read/write operation (Dual LUN)
Support Dynamic Icon Utility
Support LED for bus operating indication
Power switch integrated to reduce production BOM cost
48pin-LQFP for SD/MS card reader
28pin-SSOP for SD card reader
Built in 3.3V to 2.5V regulator
AU6331 USB 2.0 SD/MMC/MS Single/Dual LUN Flash Memory Card Reader V1.02W
Official release _ Public
Page 6 of 23