The application of USB is increasingly expanding in various fields, from personal computers and digital appliances to audio/video equipment and embedded devices. Through the years, Renesas Electronics (formerly NEC Electronics) has supported USB technologies with its lineup of IC products. Read on to learn how Renesas Electronics has played a key role in designing the specifications, developing the technologies, and cultivating the market for USB.

USB: It's History and Our Involvement

A core member of the USB Implementers Forum (USB-IF) since 1996, Renesas Electronics has been actively involved in the development and support of specifications and technologies surrounding the USB protocol. Over the years, Renesas Electronics has established solid credibility in the field, for example, by releasing the world's first USB 2.0 compliant host controller IC "µPD720100" in April 2000, by steadily expanding its lineup with hub controller IC and other products, and proactively acquiring USB certification for all its commercial IC.

By the end of 2008, Renesas Electronics has shipped over 160 million USB-related products in its ASSP business alone.

Specification Date Issued Achievement by Renesas Electronics
USB1.0 January 1996 December: Shipped world's first OHCI host controller
USB2.0 April 2000 April: Shipped world's first USB 2.0 host controller
June: Shipped world's first USB 2.0 hub controller
WUSB1.0 May 2005 April 2007: Shipped world's first WHCI host controller
USB3.0 November 2008 June 2009: Shipped world's first USB 3.0 host controller

From USB 2.0 to USB 3.0

Today, new products are released on a daily basis for USB, now an essential interface for many applications. However, faced with increasing amount of information and larger, faster storage media, performance of the current USB specifications will become a bottleneck in the not-so-distant future.
USB 3.0 will add a new "SuperSpeed (5.0 Gbps)" mode, designed to withstand the needs of the market for at least 5 more years. Likewise with USB 2.0, USB 3.0 is expected to quickly become standard in the PC industry, with the first adopters being storage and video devices.

From USB 2.0 to USB 3.0 Diagram

Core Technologies in USB 3.0 Development

Through the development of USB 2.0 IC, Renesas Electronics established core USB 2.0 technologies such as SW drivers and various IP. And through extensive partnerships, Renesas Electronics has also worked to streamline the provision of complete USB solutions, from connectors to testing environment and certification. By enhancing the partnerships, and by fully utilizing our rich USB 2.0 technology asset, we strive to become the global leader in the development of complete solutions inclusive of core USB 3.0 technologies.

Development of Complete USB 3.0 Solutions Illustration

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