20-668-0024

Overview

The Digi 20-668-0024 is a Rabbit 4000 microprocessor packaged in a 128-pin LQFP measuring 16 x 16 x 1.5 mm. It features a maximum clock speed of 60 MHz and an integrated 10Base-T Ethernet controller. The device supports 8-bit or 16-bit Flash and SRAM memories with a 24-bit address bus and 8/16-bit data bus. Operating voltage options include 1.8V core (3.3V I/O) or 1.8V core and I/O. It includes eight independent DMA channels, 40+ digital I/O lines, six serial ports, and a battery-backable real-time clock.

Feature Summary

• Integrated 10Base-T Ethernet controller for optimized communication performance
• High-performance architecture with 60 MHz max clock speed and low EMI design
• Supports extended low-power sleep modes for energy efficiency
• Includes AES accelerator and watchdog timer for secure and reliable operation

Applications

• Industrial embedded control systems
• Communications equipment requiring Ethernet connectivity
• Embedded devices needing high-speed math and logic processing

Procurement Notes

Verify the specific voltage configuration required for your application, as the component supports both 1.8V core with 3.3V I/O and 1.8V core/I/O options. Confirm package integrity upon receipt, as the 128-pin LQFP requires precise handling. Ensure compatibility with the Dynamic C development environment for programming. Check for any obsolescence notices from Digi International prior to finalizing procurement plans.

Selection Notes

Select this component when an integrated Ethernet MAC and high-speed processing are needed within a compact footprint. Consider the 60 MHz clock speed for applications demanding fast I/O and math performance. Evaluate power requirements against the available low-power sleep modes. Ensure the design accommodates the 128-pin LQFP package dimensions and thermal characteristics.

Part Context

The Rabbit 4000 series by Digi International provides high-performance single-board computers and embedded modules. This microprocessor is part of a complete embedded design system supporting industrial control and communications. It utilizes the Dynamic C development system for efficient software creation without costly emulators.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.