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DP83849ID Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83849ID
Description  PHYTER짰 DUAL Industrial Temperature with Fiber Support (FX) Dual Port 10/100 Mb/s Ethernet Physical Layer Transceiver
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83849ID Datasheet(HTML) 1 Page - National Semiconductor (TI)

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© 2008 National Semiconductor Corporation
www.national.com
1
May 2008
DP83849ID PHYTER® DUAL Industrial Temperature with Fiber Support (FX)
Dual Port 10/100 Mb/s Ethernet Physical Layer Transceiver
General Description
The number of applications requiring Ethernet Con-
nectivity 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 sys-
tem management.
The DP83849ID is a highly reliable, feature rich device
perfectly suited for industrial applications enabling
Ethernet on the factory floor. The DP83849ID features
two fully independent 10/100 ports for multi-port appli-
cations.
The DP83849ID provides optimum flexibility in MPU
selection by supporting both MII and RMII interfaces.
The device also provides flexibility by supporting both
copper and fiber media.
In addition this device includes a powerful new diag-
nostics tool to ensure initial network operation and
maintenance. In addition to the TDR scheme, com-
monly 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 pre-
diction mechanism to detect and warn of changing or
deteriorating link conditions.
With the DP83849ID, National Semiconductor contin-
ues to build on its Ethernet expertise and leadership
position by providing a powerful combination of fea-
tures and flexibility, easing Ethernet implementation for
the system designer.
System Diagram
PHYTER is a registered trademark of National Semiconductor Corporation
Status
10BASE-T
or
100BASE-TX
MII/RMII/SNI
25 MHz
Clock
LEDs
DP83849ID
MPU/CPU
Source
Typical Application
MII/RMII/SNI
10BASE-T
or
100BASE-TX
100BASE-FX
100BASE-FX
Port A
Port B
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
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 802.3u 100BASE-FX Fiber Interface
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, Activ-
ity, 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)
Applications
Medical Instrumentation
Factory Automation
Motor & Motion Control
Wireless Remote Base Station
General Embedded Applications


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