SemiconductorTeardown Report - Mini USB Harddisk
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This is a teardown report of a mini USB harddisk made in China. The aluminum case with a PCB board is cost HKD40 only, and you have to buy a notebook harddisk by your own, for a HITACHI 40G harddisk, it just about HKD500. AU6390 is the major chipset of this product, it is a USB2.0 to ATA/ATAPI bridge controller made by Alcor Mirco Corp. |
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Major Components
| Parts | Parts Number | Manufacturer | Description |
| 1 | AU6390 | Alcor Micro Corp. (Taiwan) | USB2.0 to ATA/ATAPI bridge controller |
| 2 | SE8117 | unknow | 3.3V Regulator (LM1117-3.3V) |
| 3 | 12MHz crystal | unknow | crystal clock |
Here are more captures of the product.
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 Product Specification: USB 2.0 high-speed(480MHz) Mass storage, Bulk-Transport V1.0 ATA/ATAPI-6 specification rev 1.0 (PIO mode0~4 and UDMA mode2/4) Master/Slave mode ATA/ATAPI device 48 bit addressing for LBA hard drives LEDs for USB awake/suspend and data transferring 3.3V power supply Operating current 73mA, Suspend mode current 120uA 
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AU6390 is a designed as a bridge between USB host and ATA/ATAPI storage device such a PC harddisk, CDROM, CD-R/W, DVD-ROM, DVD-R/W...etc. It has a wide rage application in PC peripheral device. Below is the block diagram of the device.
May 2006
