MPC850DEZQ50BU

Overview

The MPC850DEZQ50BU is a PowerQUICC integrated communications processor based on the MPC8xx core. It features an embedded 32-bit RISC processor, a Communications Processor Module (CPM), and USB support. The device operates at clock speeds up to 50 MHz with a maximum bus speed of 50 MHz. It supports Ethernet, HDLC, and PCMCIA interfaces. Electrical specifications include 3.3 V operation with 5 V TTL compatibility on general-purpose I/O pins.

Feature Summary

• Integrates a high-performance embedded MPC8xx core with a dedicated Communications Processor Module for peripheral offloading
• Supports Universal Serial Bus (USB) host and slave modes alongside dual serial communications controllers
• Includes a versatile memory controller compatible with various memory types and a single socket PCMCIA interface
• Features advanced debug capabilities including emulation mode and hardware watchpoints

Applications

• Cost-sensitive remote-access networking products
• Telecommunications applications requiring protocol processing
• Controller applications utilizing Ethernet connectivity
• Systems requiring integrated USB and PCMCIA interfaces

Procurement Notes

Verify the specific suffix ZQ50BU against official NXP documentation to confirm package type, temperature range, and revision level. Ensure that the ordering information matches the required pinout and electrical characteristics for your design. Cross-reference the datasheet revision date to confirm the validity of the AC/DC timing specifications provided in the technical data.

Selection Notes

Select this component when a balance of processing power and communication peripherals is required within a single chip. The integration of the CPM allows the main core to focus on complex tasks while handling serial protocols independently. Consider the static design and low-power modes if energy efficiency is a priority for the target application environment.

Part Context

This part belongs to the MPC850 family of PowerQUICC processors designed by Freescale Semiconductor, now NXP. The family includes variants such as the MPC850, MPC850DE, MPC850SR, and MPC850DSL, which differ in supported protocols like ATM or multi-channel HDLC. The MPC850DE specifically adds a second serial communications controller compared to the base model.

Replacement Considerations

Consult official NXP documentation for confirmed substitute part numbers. Verify functional equivalence regarding the number of SCCs, USB support, and memory controller capabilities before substitution.