USB Host Controller transmits data at rates near 2 GB/min.
Press Release Summary:
Compliant with USB 2.0 specifications, RoHS-compliant ECOUSB(TM) uPD720102 incorporates buffer memory and circuits optimized for system memory access that enable data transmission speeds to 33 MB/s. Optimized internal clock signals and on-chip 1.5 V voltage regulator enable power consumption levels down to 65 mA during data transmission and 100 µA during idle. This 3-port device complies with EHCI Rev 1.0 and OHCI Rev 1.0a specifications.
Original Press Release:
NEC Electronics America Introduces USB 2.0 Host Controller with Industry-Leading Data Transmission Rates and Power Consumption Levels
New ECOUSB(TM) Device Delivers High Performance With Minimal Environmental Impact
SANTA CLARA, Calif., March 7 / -- NEC Electronics America, Inc. today introduced a new Universal Serial Bus (USB) host controller that is compliant with USB 2.0 specifications and features the industry's fastest data transmission rates and lowest power consumption levels. The uPD720102 host controller is the second product in NEC Electronics' successful ECOUSB(TM) series of devices that comply with the Restriction of Hazardous Substances (RoHS) environmental directive. ECOUSB devices are ideal for fast and economic development with minimal environmental impact of USB host interfaces in digital televisions, set-top boxes, printers and other digital consumer products.
New buffer memory and circuits optimized for system memory access reduce the gap between packets of data and enable the uPD720102 host controller to transmit data at speeds approaching 33 megabytes per second (MB/s), almost two gigabytes (GB) per minute -- up to 30 percent faster than the current industry-leading host controller. This high-speed transmission rate would make it possible to transfer approximately 500 MP3-compressed songs per minute, and could also facilitate the development of next-generation multimedia systems with larger storage capacities and greater performance features that benefit from high-speed interfaces. The record-breaking data transmission rate represents a nearly 50 percent improvement in transmission rate over NEC Electronics' previous-generation host controller, the uPD720101.
Optimized internal clock signals and an on-chip 1.5-volt (V) voltage regulator enable extremely low power consumption levels, as low as 65 milliamperes (mA) during data transmission and a mere 100 microamperes during idle time. These power consumption rates in both active and idle modes are the lowest in the industry and more than a 50 percent improvement over the uPD720101 device.
The number of ports in NEC Electronics' latest ECOUSB device has been reduced to three, compared to the previous 5-port design. The new uPD720102 host controller is available in a compact package and offers superb and cost- effective performance due to an integrated 1.5V internal voltage regulator for core logic and several on-chip termination resistors. The implementation of these components reduces the total bill of material by approximately 30 percent and facilitates low-cost system development.
The uPD720102 host controller is easy to use in new system development because of its compliance with the Enhanced Host Controller Interface (EHCI) Rev 1.0 and Open Host Controller Interface (OHCI) Rev 1.0a specifications, which allows developers to introduce USB interface products quickly based on popular operating systems and device drivers already available in the market.
NEC Electronics will continue to expand its lineup of ECOUSB products and other USB devices to meet the increasingly sophisticated needs of multimedia and digital consumer devices. More information about the uPD720102 USB 2.0 host controller can be found at www.necel.com/usb .
NEC Electronics' USB Products
NEC Electronics is a leading supplier of USB solutions worldwide and was the industry's first company to introduce a USB 2.0 host controller, hub controller and device controller. With a USB 2.0 product line-up that includes ASSPs and ASICs, the company has shipped more than 80 million USB 2.0 products. NEC Electronics continues to drive the development of next- generation interface technology and is also working with the Wireless USB Promoter Group to standardize specifications for Wireless USB. NEC Electronics America was the first company to offer a prototype demonstration of Wireless USB technology in 2004.
Pricing and Availability
Samples of the uPD720102 host controller are available now, priced at US$5. Volume production will begin in May and is expected to reach one million units per month by the end of 2006. Pricing and availability are subject to change.
About NEC Electronics America, Inc.
NEC Electronics America, Inc., headquartered in Santa Clara, California, is a wholly owned subsidiary of NEC Electronics Corporation , a leading provider of semiconductor products encompassing advanced technology solutions for the broadband and communications markets; system solutions for the mobile, PC, automotive and digital consumer markets; and multi-market solutions for a wide range of customer applications. NEC Electronics America offers a local manufacturing facility in Roseville, California, and the global manufacturing capabilities of its parent company. NEC Electronics America is also the marketing and sales channel in the Americas for industrial-type active-matrix LCD modules from NEC Technologies, Ltd., a global leader in innovative display technologies. More information about NEC Electronics America's products can be found at http://www.am.necel.com/.
NOTE: NEC Electronics, ECOUSB and NEC Electronics America are trademarks or registered trademarks of NEC Electronics Corporation in the United States and/or other countries. All other registered trademarks or trademarks are property of their respective owners.
CONTACT: Klaudeen Shemirani of NEC Electronics America, Inc., +1-408-588-5402, or klaudeen.shemirani@am.necel.com
