RabbitCore RCM3000 20-101-0508 Equivalent & Substitute Parts

Part Overview

The Digi 20-101-0508 is an embedded module featuring the Rabbit 3000 processor operating at 30MHz with 128KB RAM and 256KB Flash memory. This module is classified as Obsolete, indicating it is no longer in active production. The RabbitCore RCM3000 series utilizes a standardized 2 IDC Headers 2x17 connector interface for system integration.

Finding equivalent or substitute parts becomes necessary when the original 20-101-0508 reaches end-of-life status or when inventory becomes constrained. Substitute modules within the RabbitCore RCM3000 series maintain core processor compatibility and identical physical dimensions, enabling direct replacement in existing designs with appropriate firmware and memory configuration adjustments.

Substiute Parts

20-101-0508

DigiIn Stock: 84820-101-0508 Datasheet

Current PartRFQ

20-101-0507

DigiIn Stock: 129120-101-0507 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the RabbitCore RCM3000 series is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Core Processor: Rabbit 3000
• Processor Speed: 30MHz
• Connector Type: 2 IDC Headers 2x17
• Physical Dimensions: 1.850" L x 2.730" W (47.00mm x 69.00mm)
• Operating Temperature Range: 0°C ~ 70°C

Variable Parameters (Allow Substitution):

• Flash Memory Size
• RAM Memory Size

The substitute part 20-101-0507 maintains all mandatory compatibility parameters while offering increased memory capacity. Both modules share identical processor architecture, clock speed, connector interface, and physical footprint, enabling functional substitution in applications where the increased memory does not create design conflicts.

Parameter Comparison

Engineering Selection Recommendations

The 20-101-0507 serves as a direct substitute for the 20-101-0508 based on identical processor architecture, clock frequency, connector interface, and physical dimensions. Both modules are RoHS Compliant and carry MSL Rating 1, meeting equivalent environmental and regulatory requirements.

The primary distinction is memory configuration: the 20-101-0507 provides 512KB Flash and 512KB RAM compared to the 20-101-0508's 256KB Flash and 128KB RAM. This increased memory capacity does not introduce incompatibility; rather, it expands available resources for application code and data storage.

Both parts carry end-of-life status classifications (Obsolete and Not For New Designs respectively), indicating neither is recommended for new product development. Selection between these parts should be based on existing inventory availability and specific application memory requirements.

Frequently Asked Questions (FAQ)

Q: Can the 20-101-0507 directly replace the 20-101-0508 in existing designs?

A: Yes. Both modules share identical processor type, speed, connector interface, and physical dimensions. The 20-101-0507 provides additional memory capacity without introducing mechanical or electrical incompatibility.

Q: What are the key differences between these two modules?

A: The primary differences are memory sizes. The 20-101-0508 contains 256KB Flash and 128KB RAM, while the 20-101-0507 contains 512KB Flash and 512KB RAM. All other electrical and mechanical specifications are identical.

Q: Are both modules RoHS compliant?

A: Yes. Both the 20-101-0508 and 20-101-0507 are RoHS Compliant with MSL Rating 1 (Unlimited moisture sensitivity level).

Q: What connector type do these modules use?

A: Both modules use 2 IDC Headers 2x17 connectors, ensuring mechanical compatibility with existing carrier boards and interface hardware.

Q: Can I use the 20-101-0507 in applications originally designed for the 20-101-0508?

A: Yes, provided your application firmware and system design do not depend on the specific memory constraints of the original module. The increased memory in the 20-101-0507 does not create functional conflicts.

Q: What is the physical footprint of these modules?

A: Both modules have identical dimensions of 1.850" L x 2.730" W (47.00mm x 69.00mm), ensuring identical PCB mounting and spatial requirements.