Ethernet Solutions

Ethernet is a family of frame based networking technologies for LANs (Local Area Networks).  It defines the electrical and protocol layers and is standardized in the IEEE 802.3 standards. Ethernet dates back to the 1980s, and remains very popular today. National has a strong heritage in Ethernet with many industry firsts: 1990 - National chipset becomes the de-facto standard for 10Mb/s Ethernet 1994 - National's N-Way protocol adopted by IEEE802.3 for autonegotiation of speed & duplex 1995 - Industry's first 10/100 Transceiver introduced 2001 - Industry's first Gigabit ENET NIC introduced 2008 - Industry's first & only IEEE 1588 PHYTER introduced PTP Lab Demo Video DP83640 - IEEE 1588 Operation (Video, 4:30min) Featured Ethernet Devices: DP83640 - Precision PHYTER IEEE 1588 Precision Time Protocol Transceiver DP83865 - Gig PHYTER 10/100/1000 Ethernet Physical Layer

Extended Temperature Range Ethernet Devices

Function	Industrial:  -40C to 85C	Extended:  -40C to 105C	Extreme:  -40C to 125C
10/100 PHY Single	DP83848I	DP83848VYB	DP83848YB
10/100 PHY Mini	DP83848K	DP83848T	DP83848H
10/100 Dual PHY	DP83849I	DP83849ID	DP83849IF
10/100 MAC+PHY	DP83816EX

Select

Product Tables (Catalog View):

Ethernet Product Table:

• PHYs
• NICs
• SNI
• All PHYs, NICs, & SNIs

Power over Ethernet (PoE) Solution Table:

• LM507x PD Interface/Controllers

Featured Products (Product Folder View):

• DP83640 - Precision PHYTER
• DP83865 - GigPHYTER
• DP83816 - MacPHYTER - II
• DP83848I - PHYTER

PDF Selection Guides

• Industrial Systems (pdf)
• Comms Infrastructure (pdf)
• See all....

 

Design

Ethernet Design Resources (software, reference designs, app notes, eval boards, etc)

IEEE 1588 Featured Application Notes:

• AN-2006 - Coming Soon
• AN-1963 - SYNC over Networks
• AN-1838 - Boundary and Transparent Clock 
• AN-1730 - Sub Nano-second Accuracy
• AN-1729 - PTP SYNC Clock
• AN-1728 - Precision Time Protocol

All Ethernet Application Notes (by Publication Date):

Featured Articles

• IEEE 1588 and the need for Ethernet Clock Synchronization (Industrial Ethernet, Sept. 2007)

Ethernet Technical Document Archive White Papers, Articles, and past Conference Paper on Ethernet related topics.

Ethernet Frequently Asked Questions (FAQs)

PHYTER Ethernet Integrity Software Utility
Diagnostics tool.  See link status, device configuration, and network status.

Eval Boards for Ethernet
Master List - see also Product Folders for details (User Guide, Schematic, BOM, Photo, and availability) on the kits.

RD-180 - LM5072 5V out 25W IEEE 802.3at Compliant Power over Ethernet PoE+PD Power Eval_Board

Third Party Reference Designs
Supporting the DP83848 and DP83865.

RMII Standard (PDF, 119KB) - Reduced Media Independent Interface

Explore

Featured ENET Topics - Online Seminars:

• SYNC Networks w/IEEE 1588 (PTP) - July 2009
• Improving IEEE 1588 SYNC in Standard Ethernet Networks - April 2009
• Synchronizing ENET Backhaul in Telecom Systems - April 2009

ENET Fundamentals - Online Seminars:

• Basics of Ethernet
• Ethernet Made Easy
• Ethernet Integrity Tool
• Tests for ENET PHYs (UNH IOL & NSC)

Lab Video Demos:

• DP83640 - IEEE 1588 Operation (4:30min)

Related Feature Sites:

• Power Solutions

Industry Links/Standards

• IEEE Standard