COM20019I-DZD

Controllers Overview

The COM20019I-DZD is a cost-competitive ARCNET controller compliant with ANSI 878.1, manufactured by Microchip Technology (formerly SMSC). It features 2K x 8 on-chip dual-port RAM and supports data rates up to 312.5 Kbps. The device operates on a single +5V supply within an industrial temperature range of -40°C to +85°C. Packaged in a lead-free RoHS-compliant 28-pin PLCC, it integrates an internal clock scaler and supports deterministic token-passing protocols for reliable network communication.

Controllers Feature Summary

• Integrates 2K x 8 on-chip dual-port RAM with command chaining for packet queuing
• Supports deterministic token-passing ARCNET protocol with programmable reconfiguration times
• Features flexible media interface including RS485 differential driver support
• Includes software programmable node ID and duplicate detection capabilities

Controllers Applications

• Industrial automation systems requiring deterministic response times
• Factory and building control networks
• Transportation applications utilizing embedded control architectures

Controllers Procurement Notes

Verify the specific ordering suffix DZD confirms the 28-pin PLCC package configuration and lead-free RoHS compliance status. Ensure the component meets the required industrial operating temperature specifications of -40°C to +85°C for your deployment environment. Cross-reference the datasheet revision to confirm all electrical characteristics align with current manufacturing standards before finalizing procurement orders.

Controllers Selection Notes

Select this controller when implementing ARCNET networks requiring deterministic performance and minimal external logic. The integrated 2K x 8 RAM reduces board space compared to external memory solutions. Consider the 28-pin PLCC package if through-hole mounting is preferred or required for mechanical stability in vibration-prone industrial environments.

Controllers Part Context

This component belongs to the COM20019I family of embedded ARCNET controllers from Standard Microsystems Corporation. The family includes variants such as the COM20019ILJP and COM20019I-HD, offering different package options like 48-pin TQFP. All members share the core ARCNET protocol engine and 2K x 8 RAM architecture optimized for industrial and automotive embedded control applications.

Controllers Replacement Considerations

Direct replacements include other COM20019I variants such as COM20019ILJP for standard PLCC or COM20019I-HD for TQFP packages. Verify pin compatibility and package dimensions when substituting between PLCC and TQFP formats to ensure proper board layout integration.