COM20020ILJP

COM20020ILJP

5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM

Product Features  

New Features for Rev. D 

− Data Rates up to 5 Mbps 

− Programmable Reconfiguration Times 

28 Pin PLCC and 48 Pin TQFP Packages; 

Lead-free RoHS Compliant Packages also 

Available 

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 +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 2.5 Mbps 

− RS485 Differential Driver Interface For Low 

Cost, Low Power, High Reliability

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