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Datasheet Microchip COM20020I3V-DZD-TR

Part NumberCOM20020I3V-DZD-TR

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)




Deterministic ProtocolaYes Token Passing
Max Speed5 Mbps MHz
Op. Voltage3.3V 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

Moldel Line

Series: COM20020i3.3V (3)

Manufacturer's Classification

  • High-Speed Networking and Video > ARCNET

Other Names:


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