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See Technical Specifications

COM20022I-HT-TR +BOM

Fast, flexible, and robust network interface for harsh environments

Manufacturer:

Microchip Technology, Inc
Mfr.Part #:

COM20022I-HT-TR
Datasheet:

COM20022I-HT-TR Datasheet (PDF)
Device Weight (g):

0.176300
Shipping Weight (grams):

0.768000
Solder Composition:

Matte Tin
JEDEC Indicator:

e3
EDA/CAD Models:

Request Free CAD Models for COM20022I-HT-TR

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

COM20022I-HT-TR General Description

The COM20022I is a member of the family of Embedded ARCNET Controllers from Standard Microsystems Corporation. The device is a general purpose communications controller for networking microcontrollers and intelligent peripherals in industrial, automotive, and embedded control environments using an ARCNET protocol engine. The small 48 pin package, flexible microcontroller and media interfaces, eight-page message support, and extended temperature range of the COM20022I make it the only true network controller optimized for use in industrial, embedded, and automotive applications. Using an ARCNET protocol engine is the ideal solution for embedded control applications because it provides a deterministic token-passing protocol, a highly reliable and proven networking scheme, and a data rate of up to 10 Mbps when using the COM20022I. A token-passing protocol provides predictable response times because each network event occurs within a predetermined time interval, based upon the number of nodes on the network. The deterministic nature of ARCNET is essential in real time applications. The integration of the 2Kx8 RAM buffer on-chip, the Command Chaining feature, the 10 Mbps maximum data rate, and the internal diagnostics make the COM20022I the highest performance embedded communications device available. With only one COM20022I and one microcontroller, a complete communications node may be implemented.SOHARD ARCNET Analyzer "SH ARCALYZER-USB" (PCMCIA also available) by clicking this link.

Key Features

Data Rates up to 10 Mbps
Selectable 8/16 Bit Wide Bus with Data Swapper
Programmable DMA Channel
Programmable Reconfiguration Times
48 Pin TQFP RoHS Compliant Packages
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
Full 2K x 8 On-Chip Dual Port RAM
Command Chaining for Packet Queuing
Sequential Access to Internal RAM
Software Programmable Node ID
Eight 256 Byte Pages Allow Four Pages TX and RX Plus Scratch-Pad Memory
Next ID Readable
Internal Clock Scaler and Clock Multiplier for Adjusting Network Speed
Operating Temperature Range of -40°C to +85°C
Self-Reconfiguring 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
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