COM20020D datasheet(1/72 Pages) SMSC

Il numero della parte	COM20020D

Spiegazioni elettronici	ULANC Revision D Universal Local Area Network Controller with 2K x 8 On-Board RAM

PDF	72 Pages

Scroll/Zoom	100%

Produttore elettronici	SMSC [SMSC Corporation]

Homepage	http://www.smsc.com

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1 / 72 page

COM20020D

COM20020 ULANC

Revision D

Universal Local Area Network Controller

with 2K x 8 On-Board RAM

FEATURES

•

New Features for Rev. D

-

Data Rates up to 5 Mbps

-

Programmable Reconfiguration Times

• 24 Pin DIP, 28 Pin PLCC Package

• Ideal for Industrial/Factory/Building

Automation and Transportation

Applications

• Deterministic, (ANSI 878.1), Token Passing

ARCNET Protocol

• Minimal Microcontroller and Media

Interface Logic Required

• Flexible Interface For Use With All

Microcontrollers or Microprocessors

• Automatically Detects Type of

Microcontroller Interface

• 2Kx8 On-Chip Dual Port RAM

• Command Chaining for Packet Queuing

• Sequential Access to Internal RAM

• Software Programmable Node ID

• Eight, 256 Byte Pages Allow Four Pages TX

and RX Plus Scratch-Pad Memory

• Next ID Readable

• Internal Clock Scaler and Clock Multiplier for

Adjusting Network Speed

• Operating Temperature Range of -40oC to

+85

oC

• Self-Reconfiguration Protocol

• Supports up to 255 Nodes

• Supports Various Network Topologies (Star,

Tree, Bus...)

• CMOS, Single +5V Supply

• Duplicate Node ID Detection

• Powerful Diagnostics

• Receive All Packets Mode

• Flexible Media Interface:

-

Traditional Hybrid Interface For Long

Distances up to Four Miles at 2.5Mbps.

-

RS485 Differential Driver Interface For

Low Cost, Low Power, High Reliability

GENERAL DESCRIPTION

SMSC's COM20020D is a member of the family of

Embedded ARCNET Controllers from Standard

Microsystems Corporation. The device is a

general purpose communications controller for

networking

microcontrollers

and

intelligent

peripherals

in

industrial,

automotive,

and

embedded control

environments

using

an

ARCNET

®

protocol engine. The small 24 pin

package,

flexible

microcontroller

and

media

interfaces, eight- page message support, and

extended temperature range of the COM20020D

make it the only true network controller optimized

for use in industrial, embedded, and automotive

applications. Using an ARCNET protocol engine

is the ideal solution for embedded control

applications because it provides a deterministic

Codice articolo simile - COM20020D

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SMSC Corporation	COM20020	340Kb / 72P	COM20020 3.3V ULANC Universal Local Area Network Controller with 2K x 8 On-Board RAM
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SMSC Corporation	COM20020	340Kb / 72P	COM20020 3.3V ULANC Universal Local Area Network Controller with 2K x 8 On-Board RAM
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