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Flexible gigabit Ethernet solution

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NATIONAL Semiconductor, represented by Arrow Electronics , has introduced a highly-integrated quad gigabit Ethernet physical layer (PHY) transceiver for multi-port small office/home office (SOHO) switches, high density enterprise switches and router applications.

This new single-chip PHY leverages an on-chip microcontroller, providing the gigabit Ethernet market with both flexible feature support and protection against future system requirement changes.

This technology, along with National's internal manufacturing capabilities and analogue building block expertise, helps achieve a small, low power PHY with an optimal price/performance ratio in the marketplace.

National Semiconductor's DP83864 4-port GigPHYTER V device makes use of an integrated on-chip microcontroller and enables system developers to quickly customise and enhance their designs.

Features like multiple LED control, cable diagnostics, or emerging applications like IP phone detect can be added through simple software modifications.

At the heart of the DP83864 is the GigPHYTER V core powering the company's fifth generation Ethernet transceivers. With extensive field and laboratory proven interoperability, this ultra-small and ultra-low power core delivers high performance and exceptional reliability.

Each of the device's four fully featured gigabit ports supports 10BASE-T, 100BASE-TX and 1000BASE-T Ethernet protocols, ensuring a cost effective, smooth migration path from existing Fast Ethernet applications.

The cable performance exceeds IEEE requirements to provide headroom and tolerance for lower quality network cable.

Suited for L2 to L4 switch design, the IEEE 802.3-compliant DP83864 interfaces directly to the media access controller (MAC) layer through either a MII, GMII, RGMII, or SGMII interface.

The device features IEEE 802.3u auto-negotiation and parallel detection for seamless plug-and-play configuration. It requires only two power supplies, 1.8V for core and analogue and 2.5V for analogue and I/O, simplifying board design.

The DP83864 quad GigPHYTER V transceiver is offered in a 292-pin plastic ball grid array (PBGA) package.

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