COM20020D

www.DataSheet4U.com 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 +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 2.5Mbps. 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 gene...