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Press Release
*****For immediate use June 12, 2001
NEC's Industry-Leading USB 2.0 Hub Controller
First to Receive USB Certification
Tokyo - June 12, 2001 - NEC Corporation (NASDAQ: NIPNY) and its wholly
owned subsidiary in the United States, NEC Electronics Inc., today announced that
their leading universal serial bus (USB) 2.0 hub controller has successfully passed
compliance tests conducted by the USB Implementers Forum (USB-IF), becoming the
first USB certified USB 2.0 hub controller in the marketplace. NEC has focused
considerable resources on the development of USB 2.0 components because the forty-fold
increase in bandwidth (up to 480 megabits per second Mbps) proposed by the new
standard offers revolutionary advances for consumers over the previous USB 1.1
standard.
NEC's USB 2.0 Hub Controller
NEC was the first in the world to offer a USB 2.0 hub controller (µPD720110) and originally announced availability in June 2001. The µPD720110 hub device complies with Universal Serial Bus Specification Revision 2.0 and offers a maximum of 480 Mbps. The hub controller is completely compatible when any downstream-facing ports are connected to a USB 1.1-compliant device or when the upstream facing port is connected to a USB 1.1-compliant host.
A fully integrated single chip, the µPD720110 incorporates a physical layer function for simple USB 2.0 system solutions and incorporates both a USB 2.0 hub controller with one Transaction Translator (TT) and a USB1.1 hub controller on-chip, providing far higher bandwidth than previous solutions.
Hub Controller Features
- Compliant with USB Specification Revision 2.0
- High-speed or full-speed packet protocol sequencer for endpoint 0/1
- Four downstream-facing ports able to handle high-speed (480 Mbps), full-speed (12 Mbps) and low-speed (1.5 Mbps) transactions
- Supports split-transaction to handle full-speed and low-speed transactions at downstream-facing ports when in high-speed mode
- One transaction translator per Hub; supports four concurrent non-periodic transactions
- Supports self-powered mode
- Supports over-current detection and individual/gang power control
- Supports configurable vendor ID and product ID with external serial ROM
- Supports "non-removable" attribution on individual ports
- System clock is generated by a 30 MHz crystal, 30 MHz or 48 MHz clock input
- BHS detection indicator output
- 100-pin plastic LQFP
- +3.3 Volts
- Available now
About NEC Corporation
NEC Corporation (NASDAQ: NIPNY) (FTSE: 6701q.l) (TYSE: 6701) is a leading provider
of Internet solutions, dedicated to meeting the specialized needs of its customers
in the key computer, network and electron device fields through its three market-focused
in-house companies: NEC Solutions, NEC Networks and NEC Electron Devices. NEC
Corporation, with its in-house companies, employs more than 150,000 people worldwide
and saw net sales of 5,409 billion Yen (approx. US$50 billion) in fiscal year
2000-2001. For further information, please visit the NEC home
page at: http://www.nec.com
About NEC Electronics Inc.
NEC Electronics Inc., headquartered in Santa Clara, California, is one of the
leading developers, manufacturers and suppliers of semiconductor products in the
United States. Committed to meeting customers' cost, performance and time-to-market
requirements, the company offers solutions ranging from standard products to system-on-a-chip
(SOC) solutions, as well as customized products for next-generation designs. NEC
Electronics also offers customers the benefits of a state-of-the-art manufacturing
facility in Roseville, CA, and the global manufacturing capabilities of its parent
company, NEC Corporation (NASDAQ: NIPNY). For more information about products
offered by NEC Electronics Inc., please visit the NEC Electronics Web site at
http://www.necel.com.
NEC Electronics Inc. is either a registered trademark or trademark of NEC Corporation in the United States and/or other countries. VR Series is a trademark of NEC Corporation. All other registered trademarks or trademarks are property of their respective owners.
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