COM20019i 3.3V Rev. C Cost Competitive ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM Highlights Eight, 256 Byte Pages Allow Four Pages TX and Data Rates up to 312.5 Kbps RX Plus Scratch-Pad Memory Programmable Reconfiguration Times Next ID Readable 28-Pin PLCC and 48-Pin TQFP RoHS Compliant Internal Clock Scaler for Adjusting Network Speed packages o o Operating Temperature Range of -40 C to +85 C Ideal for Industrial/Factory/Building Automation 3.3V power supply with 5V tolerant I/O and Transportation Applications Self-Reconfiguration Protocol Deterministic, (ANSI 878.1), Token Passing ARC- NET Protocol Supports up to 255 Nodes Minimal Microcontroller and Media Interface Logic Supports Various Network Topologies (Star, Tree, Required Bus...) Flexible Interface For Use With All Microcontrol- CMOS, Single +3.3V Supply lers or Microprocessors Duplicate Node ID Detection Automatically Detects Type of Microcontroller Powerful Diagnostics Interface Receive All Packets Mode 2Kx8 On-Chip Dual Port RAM Flexible Media Interface: Command Chaining for Packet Queuing - RS485 Differential Driver Interface For Cost Sequential Access to Internal RAM Competitive, Low Power, High Reliability Software Programmable Node ID 2001-2018 Microchip Technology Inc. DS00002694A-page 1COM20019i 3.3V Rev. C TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: