Features

• Compliance with Gen1i, and Gen1m of

Serial ATA II Electrical Specification 1.0

• Support SATA spread-spectrum transmitter

• Support SATA II Asynchronous Signal

Recovery (Hot Plug) feature

• Compliance with USB 2.0 (Hi-Speed USB)

electrical specification

• Compliance with USB Mass Storage Class

Bulk-Only Transport Specification

• Support 480Mbps High Speed (HS) and

12Mbps Full Speed USB operation

• Support ATA/ATAPI LBA48 bit addressing

mode

• Support 12MHz external crystal.

• Single-power 3.3V power supply

• 0.18um CMOS technology and 64 -pin LQFP

ASSP package

Description

The JM20339 is single chip solution to bridge between USB 2.0 host and SATA device. The

highly integrated USB 2.0 and SATA Phys technology provides a cost-effective solution to apply USB

to SATA device enclosure. The USB adheres to the Mass Storage Class Bulk-Only Transport

Specification. The embedded command parser supports both ATA and ATAPI command set with

LBA48 bit addressing capability.