MAX24287ETK2 - MICROCHIP TECHNOLOGY

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Bus Conversion Solutions

Address Key Customer Pains

• EvolutionofEthernetstandardshascreated

multiplegenerationsofcomponentswith

differentMIIInterfaces

• Noothereasy,flexibleofftheshelfsolutionto

resolvetheMIIinterfacemismatch

• AlternativesolutionwithbacktobackPHYsis

expensiveandinefficient

• Shortenedlifeofcostefficientearliergeneration

processorsduetoMIIinterfacemismatch

increaseBOMcost

Easy to Design

• Connectswithneighborcomponentsusing

industry-standardinterfaces

• Simpleconfigurationoverhigh-speed

MDIOinterface

• Smallfootprint8x8mmTQFN

Flexible

• Supportsawiderangeofserialandparallel

interfacesandfitsthemajorityofapplications

• Serial:1000BASE-XorSGMII

• Parallel:GMII,RGMII,TBI,RTBIor10/100MII

• GPIOscanbeusedasclocksandstatus

Built-in Support for Synchronous

Ethernet

• DatapathsdesignedforSyncEclocking

• ProvidesSyncEreferencetobeusedbythe

clocktree

• ReceiveclockdividedandavailableonGPIO

• Transmitclocklockedtoasystemreference

The MAX24287 Ethernet bus converter is a flexible, low cost Ethernet interface

conversion device for interfacing a parallel gigabit media independent interface (GMII)/

MII interface to a serial GMII/1000BASE-X interface. This device is ideal for interfacing

single-channel GMII/MII devices such as microprocessors, field programmable gate

arrays (FPGAs), network processors, Ethernet-over-SONET or –PDH mappers and

TDM-over-packet circuit emulation devices. The device also provides a convenient

solution to interface such devices to electrical or optical Ethernet SFP modules.

Availability and Support

Microsemi Clock Management products are in volume production. To learn more about

Microsemi’sbusconverterproducts,visitwww.microsemi.com/timing-and-synchronization/ieee-

1588/max24287#overview.Fullinformation,includingcompletedatasheetsanddesignmanuals,

is available to registered MyMicrosemi customers. To register for a MyMicrosemi account, visit

www.microsemi.com/create-an-account.

Applications

• Anysystemwithaneedtointerfacea

componentwithaparallelMIIinterface(GMII,

RGMII,TBIRTBI,10/100MII)toacomponent

withanSGMIIor1000BASE-Xinterface

• Switches,RoutersandTelecomequipment

• IndustrialandTestequipment

MICROSEMI MAX24287 ETHERNET BUS CONVERTER

rxd(7:0) rdp

rdn

tdp

tdn

tclkp

refclk

tclkn

Receive

GMII

RGMII

TBI

RTBI

MII

Transmit

GMII

RGMII

TBI

RTBI

MII

Rate

Adaptation

Buffer

MAX24287 Block Diagram

DDRD(9:0)

125 MHz

TD(9:0)TD

125 MHz 625 MHz

1.25 GHzCC

Rate

Adaptation

Buffer

Control

and

Status

GPIO Control

GPO(1:0) GPIO(1:7)

TX PLL

PCS

Decoder

(10b/8b)

PCS

Encoder

(8b/10b)

De-

Serializer

Receive

CDR

Transmit

Driver

rxclk

rx_dv

rx_er

col

crs

txd(7:0)

gtxclk

txclk

tx_en

tx_er

mdio

mdc

rst_n

alos

Microsemi Corporate Headquarters

OneEnterprise,AlisoViejoCA92656USA

WithintheUSA:+1(949)380-610 0

Sales:+1(949)380-613 6

Fax:+1(949)215-4996

Microsemi Corporation (NASDAQ: MSCC) offers a comprehensive portfolio of semiconductor

solutions for: aerospace, defense and security; enterprise and communications; and industrial

and alternative energy markets. Products include high-performance, high-reliability analog and

RF devices, mixed signal and RF integrated circuits, customizable SoCs, FPGAs, and complete

subsystems. Microsemi is headquartered in Aliso Viejo, Calif. Learn more at www.microsemi.com.