RabbitCore RCM3600 Embedded Module (20-101-0673) Equivalent & Substitute Parts

Part Overview

The Digi RabbitCore RCM3600 (20-101-0673) is an embedded module featuring a Rabbit 3000 processor operating at 22.1MHz with 128KB RAM and 256KB Flash memory. This module is classified as Obsolete, indicating it has reached end-of-life status and is no longer recommended for new designs. The IDC Header 2x20 connector interface and compact form factor (31.00mm x 54.00mm) define its mechanical compatibility requirements. Due to its obsolete status, identifying functionally equivalent substitute modules is essential for ongoing system maintenance, legacy system support, and component procurement planning.

Substiute Parts

20-101-0673

DigiIn Stock: 100420-101-0673 Datasheet

Current PartRFQ

20-101-0672

DigiIn Stock: 98020-101-0672 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RabbitCore RCM3600 (20-101-0673) is determined by strict alignment of the following critical parameters:

Core Compatibility Parameters:

• Processor Architecture: Rabbit 3000
• Operating Frequency: 22.1MHz
• Connector Interface: IDC Header 2x20
• Physical Dimensions: 1.230" L x 2.110" W (31.00mm x 54.00mm)
• Operating Temperature Range: -40°C ~ 85°C
• Module Type: MPU Core

Memory Configuration: Memory capacity (Flash and RAM) may vary between substitute parts, provided the substitute meets or exceeds the original specifications or is explicitly validated for the target application. Substitutes within the RabbitCore RCM3600 series maintain identical processor architecture, clock speed, connector type, and physical form factor, ensuring mechanical and electrical compatibility at the module interface level.

Compliance Requirements: All substitute parts must maintain RoHS Compliance and MSL Level 1 status to ensure compatibility with standard manufacturing and storage protocols.

Parameter Comparison

Engineering Selection Recommendations

The RabbitCore RCM3600 (20-101-0672) serves as a direct substitute for the 20-101-0673 based on identical processor architecture, clock frequency, connector interface, and physical dimensions. Both modules maintain RoHS Compliance and MSL Level 1 status, ensuring compatibility with standard component handling and manufacturing processes.

The primary difference between these modules is memory capacity: the substitute part provides 512KB Flash and 512KB RAM compared to the original 256KB Flash and 128KB RAM. This increased memory capacity is backward-compatible for applications designed around the original specifications, as the substitute accommodates larger firmware images and expanded runtime data storage without requiring interface or connector modifications.

Both parts carry end-of-life designations (Obsolete and Not For New Designs, respectively), reflecting the maturity of the Rabbit 3000 processor platform. Component selection should prioritize inventory availability and application-specific memory requirements.

Frequently Asked Questions (FAQ)

Q: Can the 20-101-0672 directly replace the 20-101-0673 in existing designs?

A: Yes. Both modules share identical processor architecture (Rabbit 3000), operating frequency (22.1MHz), connector type (IDC Header 2x20), and physical dimensions (31.00mm x 54.00mm). The increased memory capacity of the substitute part does not introduce compatibility issues at the module interface level.

Q: What is the significance of the memory difference between these parts?

A: The 20-101-0673 provides 256KB Flash and 128KB RAM, while the 20-101-0672 provides 512KB Flash and 512KB RAM. Applications designed for the original specifications will operate on the substitute without modification. The additional memory capacity may benefit applications requiring larger firmware images or expanded data buffering.

Q: Are both parts suitable for new product development?

A: No. Both modules carry end-of-life designations: the 20-101-0673 is classified as Obsolete, and the 20-101-0672 is classified as Not For New Designs. These parts are appropriate for legacy system maintenance and component replacement only.

Q: Do these modules require different connector handling or installation procedures?

A: No. Both modules use identical IDC Header 2x20 connectors and maintain the same physical form factor. Installation procedures, PCB footprints, and connector pin assignments remain unchanged.

Q: What compliance certifications apply to both substitute parts?

A: Both modules are RoHS Compliant and carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling. Both are REACH Unaffected.