The number of applications requiring Ethernet Connectivity continues to expand. Alongwith this increased market demand is a change in application requirements. Where single channelEthernet used to be sufficient, many applications such as wireless remote base stations andindustrial networking now require DUAL Port functionality for redundancy or systemmanagement.

The DP83849IF is a highly reliable, feature rich device perfectly suited for industrialapplications enabling Ethernet on the factory floor. The DP83849IF features two fully independent10/100 ports for multi-port applications. Texas Instruments’ unique port switching capability alsoallows the two ports to be configured to provide fully integrated range extension, mediaconversion, hardware based failover and port monitoring.

The DP83849IF provides optimum flexibility in MPU selection by supporting both MII andRMII interfaces. The device also provides flexibility by supporting both copper and fiber media. Inaddition this device includes a powerful new diagnostics tool to ensure initial network operationand maintenance.

In addition to the TDR scheme, commonly used for detecting faults during installation,TI’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 ofchanging or deteriorating link conditions.

With the DP83849IF, TI continues to build on its Ethernet expertise and leadershipposition by providing a powerful combination of features and flexibility, easing Ethernetimplementation for the system designer.

  • Low-Power 3.3V, 0.18µm CMOSTechnology
  • Low Power Consumption <600mW Typical
  • 3.3V MACInterface
  • Auto-MDIX for 10/100 Mb/s
  • Energy DetectionMode
  • Flexible MII Port Assignment
  • Dynamic IntegrityUtility
  • Dynamic Link Quality Monitoring
  • TDR based CableDiagnostic and Cable Length Detection
  • Optimized Latency for Real Time EthernetOperation
  • Reference Clock Out
  • RMII Rev. 1.2 Interface(Configurable)
  • SNI Interface (Configurable)
  • MII SerialManagement Interface (MDC and MDIO)
  • IEEE 802.3u MII
  • IEEE802.3u Auto-Negotiation and Parallel Detection
  • IEEE 802.3u ENDEC, 10BASE-TTransceivers and Filters
  • IEEE 802.3u PCS, 100BASE-TX Transceivers andFilters
  • IEEE 802.3u 100BASE-FX Fiber Interface
  • IEEE 1149.1JTAG
  • Integrated ANSI X3.263 Compliant TP-PMD Physical Sub-Layer with AdaptiveEqualization and Baseline Wander Compensation
  • Programmable LED Support forLink, 10 /100 Mb/s Mode, Activity, Duplex and Collision Detect
  • Single RegisterAccess for Complete PHY Status
  • 10/100 Mb/s Packet BIST (Built in SelfTest)
  • 80-pin TQFP Package (12mm x 12mm)

PHYTER is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

Part number立即下单Port countDatarate(Mbps)InterfaceSupply voltage(Volt)IO supply(Typ)(V)Cable length(m)JTAG1149.1FeaturesRatingOperating temperature range(C)Package GroupPackage size: mm2:W x L (PKG)
DP83849IF立即下单Dual  10/100  MII
RMII
SNI  
3.3  3.3  137  Yes  FX support
Cable diagnostics
Flex port
JTAG1149.1  
Catalog  -40 to 85  TQFP | 80  80TQFP: 144 mm2: 12 x 12 (TQFP | 80)  
DP83849C立即下单Dual  10/100  MII
RMII
SNI  
3.3  3.3  137  No  Cable diagnostics  Catalog  0 to 70  TQFP | 80  80TQFP: 144 mm2: 12 x 12 (TQFP | 80)  
DP83849I立即下单Dual  10/100  MII
RMII
SNI  
3.3  3.3  137  Yes  Cable diagnostics
Flex port
JTAG1149.1  
Catalog  -40 to 85  TQFP | 80  80TQFP: 144 mm2: 12 x 12 (TQFP | 80)  
DP83849ID立即下单Dual  10/100  MII
RMII
SNI  
3.3  3.3  137  Yes  FX support
Cable diagnostics
JTAG1149.1  
Catalog  -40 to 85  TQFP | 80  80TQFP: 144 mm2: 12 x 12 (TQFP | 80)  

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