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NEC ships samples of PCIe bridge chip

Posted: 04 Oct 2006 ?? ?Print Version ?Bookmark and Share

Keywords:NEC? PCI Express? PCI? PCI-X? bridge chip?

NEC Electronics Corp. and its subsidiaries in the Americas and Europe have announced the availability of samples of its low-power, single-port PCI Express-to-PCI/PCI-X bridge chip. The uPD720405 bridge ASSP features a dual power supply that eliminates the need for special power-up sequencing, the company said. The very small form factor is also suitable for networking and storage applications that have stringent space limitations, such as workstation and server motherboards and low-profile cards (LPCs).

"NEC Electronics' low-power, small form factor PCI Express solution provides an easy migration path from native PCI/PCI-X devices and ensures compatibility of previous generations of PCI standards with the emerging PCI Express standard," said Kugao Ouchi, general manager of the digital consumer and connectivity strategic business unit at NEC Electronics America. "The combination of a small form factor with a very low-power device makes the uPD720405 bridge chip perfect for designs where size, speed and reliability are factors in the design criteria."

The device supports x4 PCI Express lanes and a single PCI/PCI-X domain, and operates at 133MHz in single-data-rate PCI-X mode or 66MHz in 64bit PCI mode. The ASSP also supports standard PCI Express power management states, as well as optional active power management states such as Link (from L0, L0s, L1 and L3) and Device (D0, D1 and D3). This support allows designers to minimize power consumption while complying with PCI specifications. The new bridge device also supports advanced error reporting and has a power consumption level of 2W, which eliminates the need for heat sinks in most applications. The device is available in a 17-by-17mm BGA package that enables the device to fit into LPCs with heights as low as 64.41mm, compared to the 106.88 mm height in standard PCI form factors.

Samples of the uPD720405 PCI Express bridge ASSP are currently available for $22 each. Mass production is scheduled to begin in Q1 2007. Pricing and availability are subject to change.

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