COM20019I-DZD Ver la hoja de datos (PDF) - SMSC -> Microchip

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COM20019I-DZD

Low Cost ARCNET (ANSI 878.1) Controller

SMSC -> Microchip 

Product Features

ƒ New Features:

− Data Rates up to 312.5 Kbps

− Programmable Reconfiguration Times

ƒ 28 Pin PLCC and 48 Pin TQFP Packages;

Green, Lead-free Packages also Available

ƒ Ideal for Industrial/Factory/Building Automation

and Transportation Applications

ƒ Deterministic, (ANSI 878.1), Token Passing

ARCNET Protocol

ƒ Minimal Microcontroller and Media Interface

Logic Required

ƒ Flexible Interface For Use With All

Microcontrollers or Microprocessors

ƒ Automatically Detects Type of Microcontroller

Interface

ƒ 2Kx8 On-Chip Dual Port RAM

ƒ Command Chaining for Packet Queuing

ƒ Sequential Access to Internal RAM

ƒ Software Programmable Node ID

COM20019I

Low Cost ARCNET

(ANSI 878.1)

Controller with 2K x 8

On-Board RAM

Datasheet

ƒ Eight, 256 Byte Pages Allow Four Pages TX and

RX Plus Scratch-Pad Memory

ƒ Next ID Readable

ƒ Internal Clock Scaler for Adjusting Network

Speed

ƒ Operating Temperature Range of -40oC to +85oC

ƒ Self-Reconfiguration Protocol

ƒ Supports up to 255 Nodes

ƒ Supports Various Network Topologies (Star,

Tree, Bus...)

ƒ CMOS, Single +5V Supply

ƒ Duplicate Node ID Detection

ƒ Powerful Diagnostics

ƒ Receive All Packets Mode

ƒ Flexible Media Interface:

− RS485 Differential Driver Interface For Low Cost,

Low Power, High Reliability

ORDERING INFORMATION

Order Number(s):

COM20019ILJP for 28 pin PLCC package; COM20019I-DZD for 28 pin PLCC package (green, lead-free)

COM20019I-HD for 48 pin TQFP package; COM20019I-HT for 48 pin TQFP package (green, lead-free)

SMSC COM20019I

Page 1

DATASHEET

Rev. 03-07-06

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