MC68020CRC20E

Microprocessors Overview

The MC68020CRC20E is a 32-bit microprocessor belonging to the Motorola M68000 family. It operates at a maximum clock frequency of 20 MHz and utilizes a ceramic PGA-68 package. The device features a 23-bit address bus width and a 16-bit external data bus width. Designed for fixed-point processing, it lacks an integrated cache and DMA channels. The component supports seven external interrupt devices and includes serial I/O capabilities within its interface set.

Microprocessors Feature Summary

• Supports 32-bit internal architecture with a 16-bit external data bus for efficient data handling
• Includes a 23-bit address bus enabling access to extended memory spaces
• Features a dedicated interface for connecting external coprocessors
• Provides hardware support for virtual memory systems

Microprocessors Applications

• High-performance embedded control systems
• Industrial automation controllers
• Network infrastructure equipment
• Scientific instrumentation

Microprocessors Procurement Notes

Verify the specific suffix 'CRC20E' against official NXP documentation to confirm pinout compatibility and electrical characteristics. Ensure the ceramic PGA-68 package matches the target PCB footprint. Confirm that the 20 MHz speed grade meets system timing requirements. Check for RoHS compliance status if required by current manufacturing standards.

Microprocessors Selection Notes

Select this processor when a 32-bit MIPS performance level is required with a 16-bit external bus interface. Consider the ceramic PGA-68 package for applications needing robust thermal dissipation and mechanical stability. Evaluate the 20 MHz operating speed against system latency constraints. Verify that the available external interrupts and serial interfaces satisfy the peripheral connectivity needs of the design.

Microprocessors Part Context

This component is part of the Motorola M68000 series, a widely used family of RISC-like processors. The MC68020 variant introduced significant architectural improvements over its predecessors, including a unified instruction and data cache structure in later revisions and enhanced virtual memory support. It serves as a bridge between 16-bit and 32-bit computing eras in embedded applications.

Microprocessors Replacement Considerations

Check for MC68EC020 variants which offer similar functionality in different packages. Verify cross-compatibility with MC68HC000 series components if lower power consumption is prioritized. Consult official substitution guides for any changes in pin assignments or voltage levels.