Serial ATA - the next generation storage interface

12 March 2003 Interconnection

The Serial ATA architecture introduces a data communication standard for fast-talking drives which effectively doubles the bandwidth, or capacity for data, between disk drives - ranging from hard drives to CD-rewritable drives - and other PC components. Molex offers a broad selection of Serial ATA standard cable assemblies. The Serial ATA specification grew out of the need to support growing bandwidth requirements current Parallel ATA (known as ATA 100) will be unable to maintain in future years. Peak transfer rates of 150 MB, or 1,5 Gbps are achieved over a 7 pin interface. Serial ATA architecture is forward looking in that it was created with a 10-year road map. The superset of capabilities beyond those of Parallel ATA will enable additional usage models and over time allow Serial ATA to migrate into lower-cost PCs, notebooks, set-tops, low-end workstations, servers, and low-cost raid storage units. In addition to the small 7 pin signal segment, a power segment is defined in the interface allowing use of 12, 5 and 3,3 V. This combined signal and power interface, with built in hot-plug capability, offers advantages in blind mate applications such as notebook media bays or raid storage units.

For more information contact Avnet Kopp, 011 809 6100, [email protected], www.avnet.co.za

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