Data Sheet
July 2000
LU6612
FASTCAT
TM
Single-FET
for 10Base-T/100Base-TX
Features
10 Mbits/s Transceiver
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General
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Compatible with
IEEE
* 802.3u 10Base-T standard
for twisted-pair cable
Autopolarity detection and correction
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Autonegotiation (IEEE 802.3u clause 28):
— Fast link pulse (FLP) burst generator
— Arbitration function
— Accepts preamble suppression
— Operates up to 12.5 MHz
Supports the station management protocol and
frame format (clause 22):
— Basic and extended registers
— Supports next-page function
— Accepts preamble suppression
— Operates up to 12.5 MHz
Supports the following management functions via
pins if station management is unavailable:
— Speed select
— Encoder/decoder bypass
— Scrambler/descrambler bypass
— Full duplex
— Autonegotiation
Supports half- and full-duplex operations
Provides four status signals: receive/transmit activ-
ity, full duplex, link integrity, and speed indication
Powerdown mode for 10 Mbits/s and 100 Mbits/s
operation
Loopback for 10 Mbits/s and 100 Mbits/s operation
0.35
µm
low-power CMOS technology
64-pin TQFP
Single 5 V power supply
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Adjustable squelch level for extended wire line
length capability (2 levels)
Interfaces with
IEEE
802.3u media independent
interface (MII)
On-chip filtering eliminates the need for external fil-
ters
Half- and full-duplex operations
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100 Mbits/s Transceiver
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Compatible with
IEEE
802.3u MII (clause 22), PCS
(clause 23), PMA (clause 24), autonegotiation
(clause 28), and PMD (clause 25) specifications
Scrambler/descrambler bypass
Encoder/decoder bypass
3-statable MII in 100 Mbits/s mode
Selectable carrier sense signal generation (CRS
asserted during either transmission or reception in
half duplex, CRS asserted during reception only in
full duplex)
Selectable MII or 5-bit code group interface
Half- or full-duplex operations
On-chip filtering and adaptive equalization that
eliminates the need for external filters
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*
IEEE
is a registered trademark of The Institute of Electrical and Electronics Engineers, Inc.
Note: Advisories are issued as needed to update product information. When using this data sheet for design purposes, please contact
your Lucent Technologies Microelectronics Group Account Manager to obtain the latest advisory on this product.
AGERE [ AGERE SYSTEMS ]
