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Datasheet Microchip COM20020i3.3V


Microchip's COM20020I is a member of the family of Embedded ARCNET Controllers from Standard Microsystems Corporation


  • Download » Datasheet PDF, 481 Kb, File published: Sep 11, 2006
    COM20020i 3V 5 Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM Data
    Docket ↓
    COM20020I 3.3V Rev.E 5Mbps ARCNET (ANSI
    878.1) Controller with
    2K x 8 On-Chip RAM Datasheet Product Features
    Вѓ Вѓ 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 o
    Operating Temperature Range of -40 C to +85 C Ideal for Industrial/Factory/Building Automation
    and Transportation Applications Вѓ 3.3V power supply with 5V tolerant I/O Вѓ Self-Reconfiguration Protocol Вѓ Deterministic, (ANSI 878.1), Token Passing
    ARCNET Protocol Вѓ Supports up to 255 Nodes Вѓ Minimal Microcontroller and Media Interface
    Logic Required Вѓ Supports Various Network Topologies (Star, Tree,
    Bus.) Вѓ Flexible Interface For Use With All
    Microcontrollers or Microprocessors Вѓ CMOS, Single +3.3V Supply Вѓ Duplicate Node ID Detection New Features:
    -Data Rates up to 5 Mbps
    -Programmable Reconfiguration Times Вѓ Вѓ 28 Pin PLCC and 48 Pin TQFP packages;
    Lead-Free RoHS Compliant packages also
    available Вѓ Automatically Detects Type of Microcontroller
    Interface Вѓ Powerful Diagnostics Вѓ Receive All Packets Mode Вѓ 2Kx8 On-Chip Dual Port RAM Вѓ Flexible Media Interface: Вѓ Command Chaining for Packet Queuing Вѓ Sequential Access to Internal RAM Вѓ Software Programmable Node ID -Traditional Hybrid Interface For Long Distances
    at 2.5Mbps -RS485 Differential Driver Interface For Low
    Cost, Low Power, High Reliability ORDERING INFORMATION
    Order Number(s):
    COM20020I 3VLJP for 28 pin PLCC * package
    COM20020I 3V-DZD for 28 pin PLCC * Lead-Free RoHS Compliant package ...



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



Deterministic Protocola, Token PassingYesYesYes
Max Speed, MHz5 Mbps5 Mbps5 Mbps
Op. Voltage, V3.3V3.3V3.3V
Operating Temperature Range, °C-40 to +85-40 to +85-40 to +85
Standalone Arcnet CntrlN/AN/AN/A
TX/RX RAM Buffer(Bytes)16K16K16K
Temp Range Max.(° C)858585
Temp Range Min.(° C)-40-40-40

Moldel Line

Series: COM20020i3.3V (3)

Manufacturer's Classification

  • High-Speed Networking and Video > ARCNET

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