MPC850ZQ50BU

Overview

The MPC850ZQ50BU is a microprocessor IC from the MPC8xx family, manufactured by NXP USA Inc. It features a single-core, 32-bit architecture with a maximum operating speed of 50 MHz. The device is housed in a 256-pin Plastic Ball Grid Array (PBGA) package measuring 23x23 mm. It operates at an I/O voltage of 3.3 V and supports an ambient temperature range of 0°C to 95°C. Key integrated peripherals include Ethernet support, USB 1.x capability, and a Communications Processor Module (CPM).

Feature Summary

• Integrates a high-performance embedded MPC8xx core with a dedicated Communications Processor Module (CPM) to offload peripheral tasks.
• Supports multiple serial communication protocols including Ethernet, HDLC/SDLC, UART, and IrDA via Serial Communications Controllers (SCCs).
• Includes a Universal Serial Bus (USB) controller supporting host and slave modes for data connectivity.
• Features a versatile memory controller compatible with DRAM, SRAM, and Flash memory interfaces.

Applications

• Cost-sensitive remote-access networking equipment
• Telecommunications infrastructure devices
• Controller applications requiring integrated communications processing

Procurement Notes

Verify the specific suffix ZQ50BU against the official datasheet to confirm package type, pinout, and temperature rating. Confirm RoHS compliance status as legacy Freescale/NXP documentation may vary. Ensure the source document matches the exact part number to avoid confusion with variants like MPC850DE or MPC850SR which have different peripheral configurations.

Selection Notes

Select this component when a PowerPC-based solution with integrated Ethernet and USB is required for embedded control. Consider the 50 MHz clock speed and 256-pin BGA package constraints during PCB layout. Evaluate thermal dissipation requirements given the junction temperature limits and power consumption characteristics defined in the electrical specifications.

Part Context

This part belongs to the MPC8xx series, specifically the PowerQUICC integrated communications processor line originally developed by Freescale Semiconductor. The MPC850 serves as a versatile one-chip solution combining a RISC core with extensive peripheral support for networking and industrial control systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Variants within the MPC850 family such as MPC850DE, MPC850SR, and MPC850DSL offer different SCC counts and ATM support but require verification of functional compatibility.