LXT975BHC

更新时间： 2024-09-16 21:54:23

品牌	Logo	应用领域
英特尔 - INTEL		电信集成电路以太网局域网（LAN）标准以太网：16GBASE-T
页数	文件大小	规格书
74页	1026K
描述
Fast Ethernet 10/100 Quad Transceivers

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LXT975BHC 数据手册

LXT974/LXT975

Fast Ethernet 10/100 Quad Transceivers

Datasheet

The LXT974 and LXT975 are four-port PHY Fast Ethernet Transceivers which support IEEE

802.3 physical layer applications at both 10 Mbps and 100 Mbps. They provide all of the active

circuitry to interface four 802.3 Media Independent Interface (MII) compliant controllers to

10BASE-T and/or 100BASE-TX media.

This data sheet applies to all versions of the LXT974 and LXT975 products including

LXT974A, LXT974B, LXT975A, and LXT975B. As a result of product changes, Revision 4

parts are labeled LXT974B and LXT975B. Revision 3 parts are labeled LXT974A and

LXT975A. The differences in these product revisions are described in the LXT974/975

Specification Update.

All four ports on the LXT974 provide a combination twisted-pair (TP) or pseudo-ECL (PECL)

interface for a 10/100BASE-TX or 100BASE-FX connection.

The LXT975 is pin compatible with the LXT974 except for the network ports. The LXT975 is

optimized for dual-high stacked RJ-45 modular applications and provides a twisted-pair

interface on every port, but the PECL interface on only two.

The LXT974/975 provides three separate LED drivers for each of the four PHY ports and a

serial LED interface. In addition to standard Ethernet, each chip supports full- duplex operation

at 10 Mbps and 100 Mbps. The LXT974/975 requires only a single 5V power supply. The MII

may be operated independently with either a 3.3V or 5V supply.

Applications

■ 10BASE-T, 10/100-TX, or 100BASE- ■ LXT975 optimized for dual-high stacked

FX Switches and multi-port NICs.

modular RJ-45 applications.

Product Features

■ Four independent IEEE 802.3-

compliant 10BASE-T or 100BASE-

TX ports in a single chip.

■ Configurable LED drivers and serial LED output.

■ Configurable through MII serial port or via

external control pins.

■ 100BASE-FX fiber-optic capable.

■ Available in 160-pin PQFP with heat spreader.

■ Commercial temperature range (0-70^oC

■ Standard CSMA/CD or full-duplex

operation.

ambient).

■ Supports auto-negotiation and legacy

systems without auto-negotiation

capability.

■ Part numbers:

—LXT974AHC

—LXT974BHC

—LXT975AHC

—LXT975BHC

■ Baseline wander correction.

■ 100BASE-TX line performance over

130 meters.

As of January 15, 2001, this document replaces the Level One document

LXT974/LXT975 Fast Ethernet 10/100 Quad Transceivers.

Order Number: 249274-001

January 2001

12 3 4 5 6 7...74

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与LXT975BHC相关器件

型号	品牌	获取价格	描述	数据表
LXT975QC	ETC	获取价格	LAN Transceiver
LXT9761	INTEL	获取价格	Fast Ethernet 10/100 Multi-Port Transceiver with RMII
LXT9761HC	ETC	获取价格	LAN TRANSCEIVER\|HEX\|QFP\|208PIN\|PLASTIC
LXT9762	INTEL	获取价格	Fast Ethernet 10/100 Multi-Port Transceiver with Serial MII
LXT9762HC	ETC	获取价格	LAN TRANSCEIVER\|HEX\|QFP\|208PIN\|PLASTIC
LXT9763	INTEL	获取价格	Fast Ethernet 10/100 Hex Transceiver with Full MII
LXT9763HC	INTEL	获取价格	LAN TRANSCEIVER\|HEX\|QFP\|208PIN\|PLASTIC
LXT9781	ETC	获取价格	Interface IC
LXT9781BC	ETC	获取价格	LAN TRANSCEIVER\|OCTAL\|BGA\|272PIN\|PLASTIC
LXT9781HC	ETC	获取价格	LAN TRANSCEIVER\|OCTAL\|QFP\|208PIN\|PLASTIC

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