AM79C873 datasheet(1/44 Pages) AMD

tên linh kiện	AM79C873

Giải thích chi tiết về linh kiện	NetPHY??-1 10/100 Mbps Ethernet Physical Layer Single-Chip Transceiver with 100BASE-FX Support

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nhà sản xuất	AMD [Advanced Micro Devices]

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PRELIMINARY

This document contains information on a product under development at Advanced Micro Devices. The information

is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed

product without notice.

Publication# 22164

Rev: A Amendment/+2

Issue Date: February 1999

Refer to AMD’s Website (www.amd.com) for the latest information.

Am79C873

NetPHY™ -1

10/100 Mbps Ethernet Physical Layer Single-Chip Transceiver with 100BASE-FX Support

DISTINCTIVE CHARACTERISTICS

s 100BASE-FX direct interface to industry

standard electrical/optical transceivers

s 10/100BASE-TX physical-layer, single-chip

transceiver

s Compliant with the IEEE 802.3u 100BASE-TX

standard

s Compliant with the ANSI X3T12 TP-PMD 1995

standard

s Compliant with the IEEE 802.3u Auto-

Negotiation protocol for automatic link type

selection

s Supports the MII with serial management

interface

s Supports Full Duplex operation for 10 Mbps and

100 Mbps

s High performance 100 Mbps clock generator

and data recovery circuitry

s Adaptive equalization circuitry for 100 Mbps

receiver

s Controlled output edge rates in 100 Mbps

s Supports a 10BASE-T interface without the

need for an external ﬁlter

s Provides Loopback mode for system

diagnostics

s Includes ﬂexible LED conﬁguration capability

s Digital clock recovery circuit using advanced

digital algorithm to reduce jitter

s Low-power, high-performance CMOS process

s Available in a 100-pin PQFP package

GENERAL DESCRIPTION

The NetPHY-1 device is a physical-layer, single-chip,

low-power transceiver for 100BASE-TX, 100BASE-FX,

and 10BASE-T operations. On the media side, it pro-

vides a direct interface to Fiber Media for 100BASE-FX

Fast Ethernet, Unshielded Twisted Pair Category 5

Cable (UTP5) for 100BASE-TX Fast Ethernet, or

UTP5/UTP3 Cable for 10BASE-T Ethernet. Through

the IEEE 802.3u Media Independent Interface (MII),

the NetPHY-1 device connects to the Medium Access

Control (MAC) layer, ensuring a high interoperability

among products from different vendors.

The NetPHY-1 device uses a low-power, high-perfor-

mance CMOS process. It contains the entire physical

layer functions of 100BASE-FX and 100BASE-TX as

deﬁned by the IEEE 802.3u standard, including the

Physical Coding Sublayer (PCS), Physical Medium

Attachment (PMA), 100BASE-TX Twisted Pair Physical

Medium Dependent (TP-PMD) sublayer, and a

10BASE-T Encoder/Decoder (ENDEC). The NetPHY-1

device provides strong support for the Auto-Negotiation

function utilizing automatic media speed and protocol

selection. The NetPHY-1 device incorporates an inter-

nal wave-shaping ﬁlter to control rise/fall time, eliminat-

ing the need for external ﬁltering on the 10/100

Mbps signals.

Số phần tương tự - AM79C873

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Advanced Micro Devices	AM79C874	542Kb / 60P	NetPHY-1LP Low Power 10/100-TX/FX Ethernet Transceiver
	AM79C874VC	542Kb / 60P	NetPHY-1LP Low Power 10/100-TX/FX Ethernet Transceiver
	AM79C874VI	542Kb / 60P	NetPHY-1LP Low Power 10/100-TX/FX Ethernet Transceiver
	AM79C875	2Mb / 48P	NetPHY??4LP Low Power Quad 10/100-TX/FX Ethernet Transceiver
	AM79C875KC	2Mb / 48P	NetPHY??4LP Low Power Quad 10/100-TX/FX Ethernet Transceiver

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