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Datasheet Microchip COM20020I-DZD

Part NumberCOM20020I-DZD

Microchip's COM20020ID is a member of the family of Embedded ARCNET Controllers from Standard Microsystems Corporation


  • Download » Datasheet PDF, 417 Kb, File published: Dec 6, 2006
    COM20020i Rev. D 5 Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
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    COM20020I Rev D
    5Mbps ARCNET (ANSI
    878.1) Controller with
    2K x 8 On-Chip RAM Datasheet Product Features
    Вѓ Вѓ New Features for Rev. D Вѓ -Data Rates up to 5 Mbps
    -Programmable Reconfiguration Times Eight, 256 Byte Pages Allow Four Pages TX
    and RX Plus Scratch-Pad Memory Вѓ Next ID Readable Вѓ Internal Clock Scaler and Clock Multiplier for
    Adjusting Network Speed Вѓ Operating Temperature Range of -40oC to
    +85oC 28 Pin PLCC and 48 Pin TQFP Packages;
    Lead-free RoHS Compliant Packages also
    Available Вѓ Ideal for Industrial/Factory/Building
    Automation and Transportation Applications Вѓ Deterministic, (ANSI 878.1), Token Passing
    ARCNET Protocol Вѓ Minimal Microcontroller and Media Interface
    Logic Required Вѓ Flexible Interface For Use With All
    Microcontrollers or Microprocessors Вѓ Self-Reconfiguration Protocol Вѓ Supports up to 255 Nodes Вѓ Supports Various Network Topologies (Star,
    Tree, Bus.) Вѓ CMOS, Single +5V Supply Вѓ Duplicate Node ID Detection Вѓ Automatically Detects Type of
    Microcontroller Interface Вѓ Powerful Diagnostics Вѓ Receive All Packets Mode Вѓ 2Kx8 On-Chip Dual Port RAM Вѓ Вѓ Command Chaining for Packet Queuing Вѓ Sequential Access to Internal RAM Вѓ Software Programmable Node ID 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 ORDERING INFORMATION
    Order Numbers:
    COM20020ILJP for 28 pin PLCC package ...



Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)




Deterministic ProtocolaYes Token Passing
Max Speed5 Mbps MHz
Op. Voltage5V V
Operating Temperature Range-40 to +85 °C
Standalone Arcnet CntrlN/A
TX/RX RAM Buffer(Bytes)16K
Temp Range Max.(° C)85
Temp Range Min.(° C)-40

Eco Plan


Moldel Line

Series: COM20020i (3)

Manufacturer's Classification

  • High-Speed Networking and Video > ARCNET

Other Names:


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