MPC8255AVVMHBB

Overview

The MPC8255AVVMHBB is a microprocessor from the PowerQUICC II family, manufactured by NXP Semiconductors. It integrates a single-core 32-bit PowerPC G2 processor operating at a maximum clock frequency of 266 MHz. The device utilizes a 480-TBGA package with dimensions of 37.5x37.5 mm and supports surface mount installation. Key electrical specifications include a core voltage of 2.5 V and I/O voltage of 3.3 V. Memory architecture features 16 kB L1 instruction cache, 16 kB L1 data cache, and 24 kB data RAM. It operates within a temperature range of -40°C to +105°C.

Feature Summary

• Integrates a dual-issue PowerPC G2 core for high-performance scalar processing
• Includes an independent Communications Processor Module (CPM) for protocol offloading
• Supports virtual memory management via a fully compatible Memory Management Unit (MMU)
• Provides multiple integrated communication interfaces including Ethernet, I2C, UART, and SPI

Applications

• Enterprise networking equipment such as routers and switches
• Telecommunications infrastructure systems
• Industrial control applications requiring wide temperature operation
• Embedded systems utilizing VxWorks or Linux operating environments

Procurement Notes

Verify component authenticity through authorized channels due to obsolete status. Confirm moisture sensitivity level handling requirements during storage and assembly. Ensure compatibility with existing PCB footprints and thermal management solutions. Review datasheet revisions for any pinout or electrical characteristic updates prior to integration.

Selection Notes

Select this component when a balance between processing power and cost is required compared to higher-end models in the MPC82xx series. Consider its footprint compatibility with other devices in the family for design flexibility. Evaluate system memory requirements against the internal cache and RAM limitations. Assess interface needs to ensure sufficient Ethernet and serial ports are available on-chip.

Part Context

This part belongs to the MPC82xx series of PowerQUICC II processors designed for communications applications. It serves as a simplified alternative to the MPC8260 while maintaining pin compatibility. The series targets high-volume embedded markets needing robust networking capabilities and reliable long-term performance in demanding environments.

Replacement Considerations

Public confirmed substitute part numbers: MPC8255ACZUMHBB, MPC8255AVRPIBX.