COM20020 Datasheet, PDF(1/72 Page) SMSC Corporation – COM20020 3.3V ULANC Universal Local Area Network Controller with 2K x 8 On-Board RAM

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COM20020 Datasheet, PDF (1/72 Pages) SMSC Corporation – COM20020 3.3V ULANC Universal Local Area Network Controller with 2K x 8 On-Board RAM

COM20020 3.3V

COM20020 3.3V ULANC

Universal Local Area Network Controller

with 2K x 8 On-Board RAM

FEATURES

!" New Features

- 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

+85oC

!" Self-Reconfiguration Protocol

!" Supports up to 255 Nodes

!" Supports Various Network Topologies (Star,

Tree, Bus...)

!" CMOS, Single +3.3V 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

ORDERING INFORMATION

Order Numbers:

COM20020ILJP3V

28 PLCC Package

COM20020IP3V

24 DIP Package

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