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COM20019I_07 Datasheet, PDF (1/65 Pages) SMSC Corporation – Cost Competitive ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM | |||
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Product Features
 New Features:
â Data Rates up to 312.5 Kbps
â 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
COM20019I
Cost Competitive
ARCNET (ANSI 878.1)
Controller with 2K x 8
On-Chip RAM
Datasheet
 Eight, 256 Byte Pages Allow Four Pages TX and
RX Plus Scratch-Pad Memory
 Next ID Readable
 Internal Clock Scaler 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:
â RS485 Differential Driver Interface For Low Cost,
Low Power, High Reliability
ORDERING INFORMATION
Order Numbers:
COM20019ILJP for 28 pin PLCC package; COM20019I-DZD for 28 pin PLCC lead-free RoHS Compliant package
COM20019I-HD for 48 pin TQFP package; COM20019I-HT for 48 pin TQFP lead-free RoHS Compliant package
SMSC COM20019I
Page 1
DATASHEET
Rev. 09-25-07
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