20-101-0446

Overview

The Digi 20-101-0446 is a RabbitCore embedded module based on the Rabbit 2000 processor core. It operates at a clock speed of 22.1MHz and includes 128KB of RAM. The module features two IDC headers with a 2x20 pin configuration for connectivity. Designed for industrial environments, it supports an operating temperature range from -40°C to +85°C. The physical dimensions are approximately 2 inches by 3.5 inches (51mm x 89mm). This System-on-Module integrates the microprocessor and memory into a compact form factor suitable for custom carrier boards.

Feature Summary

• Integrates Rabbit 2000 processor core for embedded control applications
• Includes onboard 128KB RAM for data processing
• Industrial-grade thermal rating spanning -40°C to +85°C
• Utilizes dual 2x20 IDC header connectors for interface expansion

Applications

• Industrial automation controllers
• Embedded sensor network nodes
• Custom IoT gateway hardware
• Ruggedized monitoring systems

Procurement Notes

This component is officially listed as obsolete and no longer manufactured by Digi International. Sourcing is limited to existing stock or secondary market distributors. Verify part authenticity and condition carefully when purchasing from third-party suppliers. Ensure compatibility with legacy system requirements before procurement. No new production units are available directly from the manufacturer.

Selection Notes

Select this module only if Rabbit 2000 architecture compatibility is required. Consider the 22.1MHz performance limit for application feasibility. Evaluate the 128KB RAM constraint against software footprint needs. Verify that the 2x20 IDC connector pitch matches the target carrier board design. Confirm that the industrial temperature range meets environmental specifications.

Part Context

The 20-101-0446 belongs to the RabbitCore product line, representing an earlier generation of embedded modules. It serves as a predecessor to later Rabbit 3000-based modules like the 20-101-0562. This series was designed for developers seeking a complete computing solution on a single board. The module simplifies integration by providing a standardized interface for processor and memory components.

Replacement Considerations

The 20-101-0562 is a documented successor module featuring the Rabbit 3000 core. It offers higher performance with a 29.4MHz speed and increased memory capacity. Migration requires evaluation of software compatibility between Rabbit 2000 and Rabbit 3000 architectures. Connector differences may necessitate carrier board redesigns.