MPC855TZQ50D4R2

Microprocessors Overview

The MPC855TZQ50D4R2 is a member of the MPC860 PowerQUICC family, implementing Power Architecture technology with a 32-bit core. It features 4 Kbytes each of instruction and data caches, supporting up to 10/100 Mbps Ethernet and ATM via UTOPIA. The device includes four Serial Communication Controllers (SCCs), two Serial Management Channels (SMCs), one SPI, and one I²C port within its Communications Processor Module (CPM). Operating at 50 MHz in a 357-pin PBGA package, it supports 3.3 V operation with 5 V TTL compatibility.

Microprocessors Feature Summary

• Integrated Power Architecture core with MMUs and cache coherency
• Communications Processor Module with multiple serial controllers
• Support for Ethernet and ATM protocols
• Low-power modes including doze, sleep, and deep sleep

Microprocessors Applications

• Networking controller applications
• Communications systems
• ATM network interfaces

Microprocessors Procurement Notes

Verify component authenticity through official NXP channels or authorized distributors. Confirm datasheet revision and manufacturing date codes match project requirements. Ensure ESD handling procedures are followed during storage and assembly. Check for specific mask revisions if legacy compatibility is required.

Microprocessors Selection Notes

Select this part for applications requiring integrated networking and communication capabilities on a single chip. Consider the 357-pin BGA package constraints and thermal management needs. Evaluate power consumption across different operating modes. Ensure software tools support the PowerQUICC architecture.

Microprocessors Part Context

This component belongs to the MPC860 PowerQUICC family, which provides an integrated processor and peripheral solution. The family is designed for communications and networking control applications, offering lower power consumption compared to traditional architectures. It supports third-party tool development through the Design Alliance Program.

Microprocessors Replacement Considerations

Consult the MPC860 family comparison table for alternatives like MPC860T or MPC860DT. Verify pinout and feature compatibility before substitution. Contact NXP for current availability status as older models may be discontinued.