STMicroelectronics Samples 65nm HDD Iterative Decoding Channel

STMicroelectronics is sampling its first 65nm iterative read channel for the low-power mobile segment of Hard Disk Drives. ST’s iterative channel signal-to-noise ratio (SNR) gain is a key enabler for sustaining the industry’s aggressive 40% compound annual growth rate in storage capacity. As well, even with the increased complexity of iterative technology ST has decreased power by greater than 25%, vital in mobile HDD applications.

This Mobile IP is the first offering from ST’s Tiziano family of read channel macros, which will also include channels customized for the desktop and enterprise market segments. Each of the channels in the Tiziano family share common features and firmware, allowing customers to leverage their investment across multiple product segments.

The third generation of ST’s production-proven read channels, Tiziano supports the latest industry requirements for perpendicular recording, low power, servo detection and demodulation, defect mapping and self servo write. ST’s Tiziano channel innovation enhances application battery live time and reliability through lower power by utilizing conditional iteration techniques and dynamic voltage control. Iterative decoding is targeted at perpendicular recording enabling significant capacity gains over the previous generation with at least 0.7dB post ECC SNR gain. Further capacity boost beyond the base iterative architecture is enabled through enhanced servo detection and demodulation that improves servo positioning and thus allows an increase in the number of tracks and format efficiency. Tiziano enhances the HDD manufacturing process through a proprietary self-servo write that enables faster manufacturing cycle time and more accurate writing of tracks, for higher yield. Additionally, product reliability is enhanced by improved media defect mapping and defect handling enhancements.

"Tiziano accelerates the path to the next generation of hard disk drives across mobile, desktop and enterprise markets," said Vittorio Peduto, General Manager of Data Storage at STs Computer Peripherals Group. "Once again, ST confirms its position at the forefront of data storage technology development, offering best-in-class solution to our strategic partners in the hard-disk drive segment."

The Tiziano read channel macro is receiving significant interest with major HDD suppliers and is available for integration within 65nm SoC’s. ST’s IPs are developed in close collaboration with strategic customers to address their specific requirements and ensure competitiveness. Tiziano rounds out ST’s portfolio of 65 nm HDD SoC IP allowing ST to provide customers with complete turnkey solutions or a solution utilizing both ST and customer IP.

STMicroelectronics