COM20020ILJP ARCNET Controller Equivalent & Substitute Parts

Part Overview

The COM20020ILJP is an ARCNET Controller IC manufactured by Microchip Technology, designed for parallel interface applications in ARCNET 878.1 networks. This component integrates controller functionality with a 2KX8 memory configuration in a 28-PLCC package. The part is currently classified as obsolete, which necessitates identification of active equivalent alternatives to maintain system availability and support ongoing production requirements.

Substiute Parts

COM20020ILJP

Microchip TechnologyIn Stock: 4809COM20020ILJP Datasheet

Current PartRFQ

COM20020I-DZD

Microchip TechnologyIn Stock: 2800COM20020I-DZD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the COM20020ILJP is determined by strict equivalence across the following critical parameters:

• Protocol & Standards: Both parts must support ARCNET protocol and comply with ARCNET 878.1 standard
• Function & Interface: Controller function with parallel interface configuration
• Electrical Specifications: Identical voltage supply range (4.5V ~ 5.5V) and current consumption (20mA)
• Package Compatibility: 28-PLCC (11.51x11.51) physical package with 28-LCC J-Lead case
• Operating Conditions: Matching temperature range (-40°C ~ 85°C) and MSL rating (3)
• Manufacturer: Microchip Technology as original manufacturer

The COM20020I-DZD meets all substitution criteria as a direct equivalent part from the same manufacturer with identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The COM20020I-DZD is the direct substitute for the obsolete COM20020ILJP. Both parts share identical electrical, mechanical, and functional specifications, ensuring pin-for-pin and functional compatibility in ARCNET 878.1 parallel interface applications.

The primary distinction between the two parts is product status and regulatory compliance. The COM20020ILJP is obsolete and RoHS non-compliant, while the COM20020I-DZD is active in production and ROHS3 compliant. For new designs or production continuity, the COM20020I-DZD is the appropriate selection. Both parts maintain identical supply voltage (4.5V ~ 5.5V), current consumption (20mA), operating temperature range (-40°C ~ 85°C), and MSL rating (3).

Frequently Asked Questions (FAQ)

Q: Can the COM20020I-DZD be used as a direct replacement for the COM20020ILJP?

A: Yes. The COM20020I-DZD is a direct substitute with identical electrical specifications, parallel interface configuration, ARCNET 878.1 protocol support, and 28-PLCC package dimensions. No circuit modifications are required.

Q: What is the difference between these two parts?

A: The COM20020ILJP is obsolete and RoHS non-compliant. The COM20020I-DZD is an active production part with ROHS3 compliance. All functional and electrical parameters are identical.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 28-PLCC (11.51x11.51) package with 28-LCC J-Lead case configuration, ensuring mechanical compatibility.

Q: What are the supply voltage requirements?

A: Both parts operate within a 4.5V to 5.5V supply voltage range with 20mA current consumption.

Q: What is the operating temperature range?

A: Both parts operate across -40°C to 85°C, suitable for industrial and extended temperature applications.

Q: Does the substitute part support ARCNET 878.1 standard?

A: Yes. The COM20020I-DZD maintains full ARCNET 878.1 protocol compliance and parallel interface functionality identical to the main part.