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National Semiconductor’s PHYTER 10/100 Ethernet Transceiver Family Now in New, Tiny Packages


Mini Size and Extended Temperature Enables Ethernet Connectivity in Previously Unachievable, Size-constrained, Extreme Applications

June 27, 2006 – National Semiconductor Corporation (NYSE:NSM), a leading supplier of high-speed interface devices, today offered its popular DP83848 family of PHYTER® application-specific 10/100 physical layer Ethernet transceivers in new, very tiny 6 mm by 6 mm by 0.9 mm packages. The family includes the only commercially available Ethernet transceiver in an extreme temperature range for use in harsh environments such as motor control, factory automation and security systems.

National’s PHYTER® family of extreme, industrial and commercial-environment Ethernet transceivers are the first to address the expansive, unique needs of embedded-design engineers who are developing products that require network connectivity. In addition, the DP83848 family enables engineers to migrate from legacy technologies such as RS-232, RS-485 and proprietary networks to 802.3 Ethernet.

The DP83848H extreme, DP83848T industrial and DP83848M commercial, in tiny LLP® packaging enable flexible system partitioning in size-constrained applications, such as ultra-small motor drives and rotary encoders. In addition, the transceivers allow using cost effective series capacitors rather than bulky node side transformers, further reducing board real estate and system cost.

The PHYTER extreme DP83848H (-40 degrees C to 125 degrees C), and industrial DP83848T (-40 degrees C to 85 degrees C), transceivers address the quality and system reliability needs of developers implementing Ethernet in harsh environments. In addition to an industrial temperature and extreme temperature range, the industry’s highest electrostatic discharge (ESD) protection of 4000V, and up to 137 meters of cable reach, both devices have IEEE 802.3 specification compliance guaranteed by test on every unit shipped. These devices are well-suited for transportation, building automation and security applications. For more information on the DP83848H and the DP83848T or to order samples, visit and

The PHYTER commercial DP83848M transceiver addresses the quality, reliability and cost requirements of embedded developers networking their devices for the home or high end peripherals. The device offers an optimized feature set for these applications, including Auto-MDIX and assured performance thru IEEE 802.3u specification compliance, UNH interoperability certification, and up to 137 meters of cable reach. For more information on the DP83848M or to order samples, visit

The PHYTER Ethernet integrity software utility provides unmatched access for system support, debug and system design work. Available for free download at, this utility gives the user complete access for link, status, device configuration and network status monitoring, and has been developed to support current and future National Semiconductor products.

About National’s Interface Products
National Semiconductor, the LVDS technology innovator and market leader, offers a wide range of interconnect solutions that transfer high-speed digital signals using world-class analog technology. These solutions help system designers develop high-performance applications in a variety of markets, including communication and industrial systems. The products feature high reliability, low power and low noise, as well as dramatic systems savings in cable and connector costs. National Semiconductor is the world’s largest supplier of high-speed LVDS products, according to Databean’s 2005 Analog IC Market Share survey. For more information on National’s interface products, visit

Pricing and Availability
All three Ethernet transceivers are packaged in tiny lead-free 40-pin LLP packages and are available now. In 1,000-unit quantities, the DP83848T is priced at $2.52 and the DP83848M is priced at $1.89. In 100-unit quantities, the DP83848H is priced at $18.00 each.

About National Semiconductor
National Semiconductor, the industry’s premier analog company, creates high-value analog devices and subsystems. National’s leading-edge products include power management circuits, display drivers, audio and operational amplifiers, communication interface products and data conversion solutions. National’s key analog markets include wireless handsets, displays and a variety of broad electronics markets, including medical, automotive, industrial, and test and measurement applications. Headquartered in Santa Clara, California, National reported sales of $1.91 billion for fiscal 2005, which ended May 29, 2005. Additional company and product information is available at

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