Part Number : JM20337
Function :Hi Speed USB to SATA & PATA Combo Birdge
Manufacturer : JMicron Technology Corp.
Pinout : 
Description
The JM20337is single chip solution to bridge between USB 2.0, SATA and ATA/ATAPI-based mass storage device.
It provides the capability to translate USB 2.0 mass storage commands to serial ATA and ATA/ATAPI communication protocol. The USB adheres to the Mass Storage Class Bulk-Only Transport Specification, and supports dual LUN operation, which could connect to two ATA/ATAPI devices or one ATA/ATAPI device associated with one SATA device.
The embedded command parser supports both ATA and ATAPI command set with LBA48 bit addressing capability.
Datasheet PDF Download
Other datasheets in the file : JM20337