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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, 09-11-2006
    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
    ƒ ƒ Eight, 256 Byte Pages Allow Four Pages TX and
    RX Plus Scratch-Pad Memory ƒ Next ID Readable ƒ Internal Clock Scaler and Clock Multiplier for
    Adjusting Network Speed ƒ o
    Operating Temperature Range of -40 C to +85 C Ideal for Industrial/Factory/Building Automation
    and Transportation Applications ƒ 3.3V power supply with 5V tolerant I/O ƒ Self-Reconfiguration Protocol ƒ Deterministic, (ANSI 878.1), Token Passing
    ARCNET Protocol ƒ Supports up to 255 Nodes ƒ Minimal Microcontroller and Media Interface
    Logic Required ƒ Supports Various Network Topologies (Star, Tree,
    Bus.) ƒ Flexible Interface For Use With All
    Microcontrollers or Microprocessors ƒ CMOS, Single +3.3V Supply ƒ Duplicate Node ID Detection New Features:
    -Data Rates up to 5 Mbps
    -Programmable Reconfiguration Times ƒ ƒ 28 Pin PLCC and 48 Pin TQFP packages;
    Lead-Free RoHS Compliant packages also
    available ƒ Automatically Detects Type of Microcontroller
    Interface ƒ Powerful Diagnostics ƒ Receive All Packets Mode ƒ 2Kx8 On-Chip Dual Port RAM ƒ Flexible Media Interface: ƒ Command Chaining for Packet Queuing ƒ Sequential Access to Internal RAM ƒ 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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