MPC860DPZQ66D4

Overview

The MPC860DPZQ66D4 is a microprocessor from the PowerQUICC family, featuring a 32-bit PowerPC core with 16 Kbytes of instruction cache and 8 Kbytes of data cache. It supports up to 66 MHz operation in a 357-pin PBGA package. The device integrates Ethernet and ATM capabilities, along with a Communications Processor Module (CPM) containing four Serial Communication Controllers (SCCs), two Serial Management Channels (SMCs), one SPI, and one I²C port. Operating voltage is 3.3 V.

Feature Summary

• Integrated 32-bit PowerPC core with MMUs and physically addressed caches
• Supports 10/100 Mbps Ethernet and ATM protocols via UTOPIA interface
• Communications Processor Module (CPM) with dual-port RAM and multiple serial controllers
• System Integration Unit (SIU) providing timers, watchdog, and real-time clock

Applications

• Networking controller applications
• Communications systems
• ATM network interfaces
• Ethernet-based embedded control

Procurement Notes

Verify the specific suffix ZQ66D4 against official NXP documentation to confirm pinout, thermal characteristics, and operating temperature range. Ensure compatibility with existing board designs regarding the 357-pin PBGA footprint and 3.3V power requirements. Check for any available errata or design updates relevant to this revision.

Selection Notes

Select this component for applications requiring high-performance RISC processing combined with dedicated hardware support for serial communications and networking protocols. Consider the integrated CPM for offloading communication tasks from the main CPU. Evaluate thermal management needs due to the plastic BGA package and power dissipation characteristics at 66 MHz.

Part Context

This part belongs to the MPC860 PowerQUICC family, which provides an integrated processor and peripheral solution. The MPC860DP variant specifically offers larger cache sizes (16Kb I-Cache, 8Kb D-Cache) compared to other members like the MPC860T. It is designed for robust performance in demanding networking environments.

Replacement Considerations

Consult official NXP documentation for direct replacements within the MPC860 family, such as MPC860DP variants with different speed grades or packaging options. Verify functional equivalence regarding cache size, peripheral availability, and electrical specifications before substitution.