MPC850VR50BU

Overview

The MPC850VR50BU is a PowerQUICC integrated communications processor featuring an embedded 32-bit MPC8xx core operating at 50 MHz. It includes a 32-bit data bus, 2-Kbyte instruction cache, and 1-Kbyte data cache. The device integrates a Communications Processor Module (CPM) with up to 8 Kbytes of dual-port RAM, supporting Ethernet, USB, I2C, SPI, and UART interfaces. Operating voltage ranges from 3.0 V to 3.6 V, with an extended temperature range of -40°C to +95°C.

Feature Summary

• Integrates a high-performance embedded MPC8xx core with Harvard architecture caches and memory management units.
• Includes a dedicated 32-bit RISC Communications Processor Module (CPM) to offload peripheral tasks.
• Supports multiple serial channels including Ethernet, USB, SCCs, SMCs, SPI, and I2C.
• Features low-power modes such as Doze, Sleep, and Deep Sleep for dynamic power management.

Applications

• Cost-sensitive remote-access applications
• Telecommunications equipment
• Networking products

Procurement Notes

Verify the specific suffix 'VR50BU' against official NXP documentation to confirm the 50 MHz frequency rating and BGA-256 package type. Ensure compatibility with 3.3V logic levels and check for moisture sensitivity requirements during handling. Confirm that the component meets RoHS standards if required by your design specifications.

Selection Notes

Select this component when a balance of processing power and communication peripherals is needed for networking tasks. The integrated CPM reduces load on the main CPU core. Consider the 50 MHz clock speed and 8 Kbyte internal RAM limits for application complexity. Verify thermal dissipation capabilities for the BGA package in the target enclosure.

Part Context

The MPC850 belongs to the PowerQUICC family designed for communications and control. It shares architectural similarities with the MPC860 but offers specific enhancements like USB support and optimized peripheral sets for cost-sensitive markets. This part represents a single-core solution within the broader MPC8xx legacy portfolio.

Replacement Considerations

Consult official NXP documentation for direct pin-to-pin or functional equivalents within the MPC850 family, such as different frequency variants (e.g., VR66, VR80). Cross-family replacements require careful verification of interface compatibility and software migration efforts.

FAQ

What is the maximum supported bus speed for the MPC850?

The maximum bus speed supported by the MPC850 is 50 MHz. Higher-speed parts must be operated in half-speed bus mode.

Does the MPC850 support USB functionality?

Yes, the standard MPC850 supports one Universal Serial Bus (USB) channel capable of host controller and slave modes.