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Silicon Image unveils Serial ATA controller, bridge ICs

Posted: 28 Feb 2002 ?? ?Print Version ?Bookmark and Share

Keywords:silicon image? serial ata? parallel ata? serial ata controller? serial ata conversion?

Claimed to be the industry's first fully integrated, dual-channel 1.5Gbps PCI-to-Serial ATA host controller, the SiI 3112 features an aggregate transfer rate of 3Gbps, and is targeted towards PC and server motherboards, add-in-cards, host-based RAID controllers, and storage systems.

The 144-pin TQFP device also supports a 32-bit 33MHz/66MHz PCI bus incorporating robust Serial ATA base and RAID software drivers and features a single PLL architecture supporting both ports, as well as integrated Serial ATA Link and PHY logic based on the company's Multilayer Serial Link.

It also features 48-bit sector addressing, virtual DMA, and command buffering.

The company has also announced the availability of the SiI 3611 Serial ATA-to-Parallel ATA bridge chip for HDDs and storage systems, and the SiI 3610 Parallel ATA-to-Serial ATA bridge chip for motherboards, add-in cards, and drive test equipment.

Both support a 1.5Gbps transfer rate on the serial side with an on-board Serial ATA PHY. They also include Serial ATA Link and Transport layers, and are compatible with Ultra ATA/133 on the Parallel ATA side.

The 80-pin TQFP devices are also similar to the SiI 3112 with a single PLL design and MSL architecture.

Serial ATA offers higher bandwidth, scalability, lower voltage, and narrower cabling, as compared to the Parallel ATA interface. First-generation Serial ATA solutions boast a bandwidth of 1.5Gbps, with subsequent generations touting bandwidths of 3Gbps and 6Gbps.

The technology's narrower cabling also improves system cooling by increasing airflow inside the chassis and eases production by simplifying the connector.

Manufactured with a 0.18?m CMOS process, all three devices are members of the company's SATALink product line, and features a 1.8V core and 3.3V I/Os.

The SiI 3112 is priced at $8.80, while the SiI 3610 and SiI 3611 are quoted at $6 each, in quantities of 10,000 units.

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