LXT972A
3.3V Dual-Speed Fast Ethernet Transceiver Datasheet
Datasheet
The LXT972A is an IEEE compliant Fast Ethernet PHY Transceiver that directly supports both
100BASE-TX and 10BASE-T applications. It provides a Media Independent Interface (MII) for
easy attachment to 10/100 Media Access Controllers (MACs).
This document also supports the LXT972.
The LXT972A supports full-duplex operation at 10Mbps and 100Mbps. Its operating condition
can be set using auto-negotiation, parallel detection, or manual control.
The LXT972A is fabricated with an advanced CMOS process and requires only a single 3.3V
power supply.
Applications
s
Combination 10BASE-T/100BASE-TX
Network Interface Cards (NICs)
s
s
10/100 PCMCIA Cards
Cable Modems and Set-Top Boxes
Product Features
s
s
s
s
s
s
3.3V Operation.
Low power consumption (300 mW
typical).
10BASE-T and 100BASE-TX using a
single RJ-45 connection.
Supports auto-negotiation and parallel
detection.
MII interface with extended register
capability.
Robust baseline wander correction
performance.
s
s
s
s
Standard CSMA/CD or full-duplex
operation.
Configurable via MDIO serial port or
hardware control pins.
Integrated, programmable LED drivers.
64-pin Low-profile Quad Flat Package
(LQFP).
— LXT972ALC - Commercial (0
°
to 70
°
C
ambient).
As of January 15, 2001, this document replaces the Level One document
LXT972A 3.3V Dual-Speed Fast Ethernet Transceiver Datasheet.
Order Number: 249186-002
January 2001
INTEL [ INTEL CORPORATION ]
