Features Low-power 3.3V, 0.18μm CMOS technology Low power consumption <600mW Typical 3.3V MAC Interface Auto-MDIX for 10/100 Mb/s Energy Detection Mode Flexible MII Port Assignment Dynamic Integrity Utility Dynamic Link Quality Monitoring TDR based Cable Diagnostic and Cable Length Detection Optimized Latency for Real Time Ethernet Operation Reference Clock out RMII Rev. 1.2 Interface (configurable) SNI Interface (configurable) MII Serial Management Interface (MDC and MDIO) IEEE 802.3u MII IEEE 802.3u Auto-Negotiation and Parallel Detection IEEE 802.3u ENDEC, 10BASE-T transceivers and filters IEEE 802.3u PCS, 100BASE-TX transceivers and filters IEEE 1149.1 JTAG Integrated ANSI X3.263 compliant TP-PMD physical sub-layer with adaptive equalization and Baseline Wander compensation Programmable LED support for Link, 10 /100 Mb/s Mode, Activity, Duplex and Collision Detect Single register access for complete PHY status 10/100 Mb/s packet BIST (Built in Self Test) 80-pin TQFP package (12mm x 12mm) Description The number of applications requiring Ethernet Connectivity continues to expand. Along with this increased market demand is a change in application requirements. Where single channel Ethernet used to be sufficient, many applications such as wireless remote base stations and industrial networking now require DUAL Port functionality for redundancy or system management. The DP83849I is a highly reliable, feature rich device perfectly suited for industrial applications enabling Ethernet on the factory floor. The DP83849I features two fully independent 10/100 ports for multi-port applications. NATIONALs unique port switching capability also allows the two ports to be configured to provide fully integrated range extension, media conversion, hardware based failover and port monitoring. The DP83849I provides optimum flexibility in MPU selection by supporting both MII and RMII interfaces. In additional this device includes a powerful new diagnostics tool to ensure initial network operation and maintenance. In addition to the TDR scheme, commonly used for detecting faults during installation, NATIONAL's innovative cable diagnostics provides for real time continuous monitoring of the link quality. This allows the system designer to implement a fault prediction mechanism to detect and warn of changing or deteriorating link conditions. With the DP83849IVS, National Semiconductor continues to build on its Ethernet expertise and leadership position by providing a powerful combination of features and flexibility, easing Ethernet implementation for the system designer. Applications Medical Instrumentation Factory Automation Motor & Motion Control Wireless Remote Base Station General Embedded Applications

Parameters Values Function PHY Data Rate (Mbps) 10/100 Port Count Dual Interface MII / RMII / SNI Special Features Cable Diagnostics JTAG1149.1 Yes Temperature Min -40 deg C Temperature Max 85 deg C Supply Voltage 3.3 Volt

Datasheets

Title		Size	Date	Other Language
	DP83849I PHYTER DUAL Industrial Temperature with Flexible Port Switching Dual Port 10/100 Mb/s Ethernet Physical Layer Transceiver	4033 Kbytes	27-May-08

Application Notes

Title		Size	Date	Other Language
	AN-1508: Application Note 1508 DP83849 Cable Diagnostics	796 Kbytes	4-Aug-06	中文
	AN-1509: Application Note 1509 PhyterDual Flexible Port Switching	233 Kbytes	21-May-07	中文
	AN-1469: Application Note 1469 PHYTER Design & Layout Guide	341 Kbytes	29-Apr-08	中文
	AN-1507: Application Note 1507 DP83848 and DP83849 100Mb Data Latency	575 Kbytes	4-Aug-06	中文
	AN-1540: Application Note 1540 Power Measurement of Ethernet Physical Layer Products	170 Kbytes	2-Oct-07
	AN-1548: Application Note 1548 DP82848 PHYTER 100Base-TX Reference Clock Jitter Tolerance	161 Kbytes	2-Oct-07	中文
	AN-1794: Application Note 1794 Using RMII Master Mode	233 Kbytes	11-Mar-08
	AN-1862: Application Note 1862 Reducing Radiated Emissions in Ethernet 10/100 LAN Applications	117 Kbytes	4-Jun-08

Other Technical Documents

Title		Type	Date
	Avoid costly network downtime -- Use predictive cable diagnostics	External Article	2006-12-20

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DP83849IVS/NOPB RoHS Status	TQFP	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 673 DIGI-KEY Worldwide 821 MOUSER Worldwide 58 RS COMPONENTS Worldwide 5	$4.75 each at 1K+ pcs	tray of 119
DP83849IVSX/NOPB RoHS Status	TQFP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$4.75 each at 1K+ pcs	reel of 1000

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DP83849I.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DP83849I is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DP83849IVS-EVK/NOPB	PHYTER DUAL Industrial Temperature Dual Port 10/100 Mb/s Ethernet Physical Layer Transceiver (backwards compatible to DP83849CVS-EVK	Preliminary Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0 MOUSER Worldwide 2	$59.30 each	1
DP83849IVS Basic product evaluation and customer demo board Contents: Fully assembled DP83849IVS board Documents: User's Guide Schematic ReadMe EULA

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
DP83849IVS/NOPB	370.131	TQFP	80	3	260	Detail	Download	ibis file	NSUZXYTTE# DP83849IVS
DP83849IVSX/NOPB	370.131	TQFP	80	3	260	Detail	Download	N/A	NSUZXYTTE# DP83849IVS

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DP83849I.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DP83849I is located at RoHS Status.

Design Tools

Title	Size	Date
DP83849 Reference Design
Ethernet Integrity Utility Tool for Support and Diagnostics

Reference Design

IEEE 1588 Compliant Industrial 802.3 Switch Reference Design - RD-133

CAD Symbols and Models Download DP83849I CAD Symbols

Models ibis file

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
DP83849IVS	CMOS9T	0	2160	0	0	2397152	2	680198425
DP83849IVSX	CMOS9T	0	2160	0	0	2397152	2	680198425

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DP83849I.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DP83849I is located at RoHS Status.

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