IC MOD RABBIT 3000 22.1MHZ 256KB (20-101-0961)

Part Overview

The Digi RabbitCore Embedded Module (part number 20-101-0961) is an obsolete MPU core module featuring the Rabbit 3000 processor operating at 22.1MHz with 256KB RAM and 512KB internal flash memory plus 1MB external flash storage. This module utilizes an IDC Header 2x20 connector interface and operates across the industrial temperature range of -40°C to 70°C.

Due to its obsolete product status, locating direct inventory of the 20-101-0961 may present supply chain challenges. Identifying functionally equivalent substitute modules ensures design continuity and system availability for legacy embedded applications.

Substiute Parts

20-101-0961

DigiIn Stock: 97420-101-0961 Datasheet

Current PartRFQ

20-101-1329

DigiIn Stock: 81720-101-1329 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 20-101-0961 is determined by strict equivalence across the following critical parameters:

• Processor Architecture: Rabbit 3000 core processor
• Clock Speed: 22.1MHz operation
• Memory Configuration: 256KB RAM with 512KB internal and 1MB external flash
• Physical Interface: IDC Header 2x20 connector maintaining pinout compatibility
• Module Dimensions: Identical 1.200" L x 2.950" W footprint
• Thermal Specification: Operating temperature range compatibility

The substitute part 20-101-1329 (RabbitCore RCM3720) maintains functional and electrical equivalence across all core parameters. The primary distinction is the operating temperature range, where the substitute operates from 0°C to 70°C compared to the original -40°C to 70°C specification.

Parameter Comparison

Engineering Selection Recommendations

The 20-101-1329 (RabbitCore RCM3720) serves as a direct functional substitute for the 20-101-0961 based on processor equivalence, memory configuration, connector compatibility, and physical form factor alignment.

Temperature Consideration: The substitute part operates from 0°C minimum temperature versus -40°C for the original. Applications requiring operation below 0°C must retain the original 20-101-0961 specification or identify alternative solutions outside the RabbitCore product line.

Compliance Status: The substitute part carries RoHS Compliant certification, whereas the original part does not specify RoHS status. Both parts maintain REACH Unaffected status and MSL 1 rating.

Inventory Availability: The substitute part (797 units in stock) provides superior availability compared to legacy inventory considerations for the original part number.

Frequently Asked Questions (FAQ)

Q: Can the 20-101-1329 replace the 20-101-0961 in all applications?

A: The 20-101-1329 provides electrical and mechanical equivalence for applications operating within the 0°C to 70°C temperature range. Applications requiring -40°C minimum operation must use the original 20-101-0961 or alternative processor solutions.

Q: Are the connector pinouts identical between these modules?

A: Both modules use IDC Header 2x20 connectors with identical physical dimensions (1.200" L x 2.950" W). Pinout compatibility is maintained for direct substitution within the specified temperature operating range.

Q: What is the significance of the RoHS Compliant status on the substitute part?

A: RoHS Compliance indicates the substitute part meets Restriction of Hazardous Substances directives, restricting lead and other hazardous materials. This may be relevant for applications subject to environmental or regulatory compliance requirements.

Q: Do both modules have the same memory configuration?

A: Yes. Both the 20-101-0961 and 20-101-1329 feature identical memory architecture: 256KB RAM, 512KB internal flash, and 1MB external flash storage.

Q: What packaging differences exist between these parts?

A: The original 20-101-0961 does not specify packaging type, while the substitute 20-101-1329 is supplied in Bulk packaging. This distinction affects procurement and handling procedures but does not impact electrical or mechanical compatibility.