MC68340CFE25E

Microprocessors Overview

The MC68340CFE25E is a high-performance 32-bit integrated processor from the M68300 family, featuring an enhanced CPU32 core derived from the MC68020. It operates at a maximum clock frequency of 25.16 MHz and utilizes a 144-pin Ceramic Quad Flat Pack (CQFP) package. The device runs on a 5.0 V supply voltage and supports an operating temperature range of 0°C to +70°C. Key specifications include a 32-bit address bus, a 16-bit data bus, and two-channel DMA for high-speed memory transfers.

Microprocessors Feature Summary

• CPU32 Core: Delivers 32-bit CISC performance with upward object-code compatibility to MC68000/MC68010 and additional 32-bit instructions.
• Two-Channel DMA Controller: Supports single- or dual-address transfers with 32-bit addresses and counters for high-speed block data movement.
• System Integration Module (SIM40): Incorporates external bus interface, programmable chip selects, wait-state generation, and watchdog timing.
• On-Chip Peripherals: Includes dual USARTs compatible with MC68681/MC2681 and independent counter/timer modules.

Microprocessors Applications

• Embedded control systems requiring high functional integration
• General computing applications utilizing established real-time kernels
• Compact Disc-Interactive (CD-I) players meeting Green Book specifications

Microprocessors Procurement Notes

Verify component authenticity through authorized NXP distributors or official documentation channels. Confirm that the specific suffix 'FE' corresponds to the 144-pin CQFP package and 5.0V operation as detailed in the product brief. Ensure compliance with RoHS directives if applicable to the manufacturing batch. Review the datasheet for any end-of-life notices or obsolescence warnings prior to finalizing procurement plans.

Microprocessors Selection Notes

Select this component when system design requires a 32-bit processor core with native 16-bit memory interface optimization. It is suitable for applications needing significant peripheral integration to reduce board space and component count. Consider the MC68340V variant if the application demands lower power consumption via 3.3V operation. Evaluate the need for DMA throughput capabilities versus standard interrupt-driven I/O methods.

Microprocessors Part Context

The MC68340 belongs to the Motorola/Freescale/NXP M68300 family of integrated processors. This family shares a common architecture based on the M68000 core and intermodule bus, allowing driver software portability across different members like the MC68302 and MC68330. The MC68340 specifically emphasizes high-performance DMA and extensive on-chip system integration compared to other family members.

Microprocessors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Designers should consult official NXP documentation for current lifecycle status and potential obsolescence management strategies.