General Description
The DP83847 is a full feature single Physical Layer device
with integrated PMD sublayers to support both 10BASE-T
and 100BASE-TX Ethernet protocols over Category 3 (10
Mb/s) or Category 5 unshielded twisted pair cables.
The DP83847 is designed for easy implementation of
10/100 Mb/s Ethernet home or office solutions. It interfaces
to Twisted Pair media via an external transformer. This
device interfaces directly to MAC devices through the IEEE
802.3u standard Media Independent Interface (MII) ensuring
interoperability between products from different vendors.
The DP83847 utilizes on chip Digital Signal Processing
(DSP) technology and digital Phase Lock Loops (PLLs) for
robust performance under all operating conditions,
enhanced noise immunity, and lower external component
count when compared to analog solutions.

Applications
LAN on Motherboard
Embedded Applications

Features
Low-power 3.3V, 0.18μm CMOS technology
Power consumption < 351mW (typical)
5V tolerant I/Os
5V/3.3V MAC interface
IEEE 802.3 ENDEC, 10BASE-T transceivers and filters
IEEE 802.3u PCS, 100BASE-TX transceivers and filters
IEEE 802.3 compliant Auto-Negotiation
Output edge rate control eliminates external filtering for
Transmit outputs
BaseLine Wander compensation
IEEE 802.3u MII (16 pins/port)
LED support (Link, Rx, Tx, Duplex, Speed, Collision)
Single register access for complete PHY status
10/100 Mb/s packet loopback BIST (Built in Self Test)
56-pin LLP package (9w) x (9l) x (.75h) mm