AU6477 - USB 2.0 Multi-LUN Flash Card Reader Controller

The AU6477 is a single chip integrated USB 2.0 multimedia card reader controller that enables PC / DVD / Printer to read / write various type of flash media cards. Flash media cards such as SD, MMC, Memory Stick are widely used in digital camera, cell phone, PDA and MP3 player to store digital photos and compressed music.

Performance of AU6477 is maximized by implementing the latest and fastest card specification available form the industry.

Especially, AU6477 is designed with the high performance characteristic in flash card I/O speed. Users can easy and fast transfer the digital content among the different flash card.

Main Features:

• Support USB V2.0 specification and USB Device Class Definition for Mass Storage, Bulk-Transport V1.0.
• Support SD spec up to Version 2.0 (SDHC).
• Support MMC spec up to Version 4.2.
• Support Memory Stick spec up to Version 1.43.
• Support Memory Stick PRO spec up to Version 1.03.
• Support Memory Stick PRO-HG spec up to Version 1.01.
• Hardware DMA engine integrated for performance enhancement.
• Work with default driver from Windows ME / 2000 / XP / Vista and Mac OS X; Vendor device driver from Alcor Micro are available to run under Windows 98 and Mac 9.
• Ping-pong FIFO implementation for concurrent bus operation.
• Support multiple sectors transfer optimize performance.
• Support slot-to-slot read / write operation.
• Support Dynamic Icon Utility.
• Support LED for bus operating indication.
• Power switch integrated to reduce production BOM cost.
• 30MHz 8051 CPU.
• On-chip 5V to 3.3V/1.8V regulator.
• Runs at 12MHz crystal.
• Available in 48-pin LQFP package.

Application Diagram: