MPC850SRVR50BU

Overview

The MPC850SRVR50BU is a PowerQUICC integrated communications processor featuring an embedded 32-bit MPC8xx core operating at 50 MHz. It includes two Serial Communications Controllers (SCCs) supporting Ethernet, ATM, USB, and Multi-channel HDLC. The device integrates a 32-bit RISC Communications Processor Module (CPM) with up to 8 Kbytes of dual-port RAM, a memory controller for DRAM/SDRAM/SRAM, and a single PCMCIA-ATA interface. It operates on 3.3V I/O with 5V TTL compatibility.

Feature Summary

• Integrates a high-performance embedded MPC8xx core with a dedicated 32-bit RISC Communications Processor Module (CPM) to offload peripheral tasks.
• Supports advanced communication protocols including Ethernet, Asynchronous Transfer Mode (ATM), Universal Serial Bus (USB), and Multi-channel HDLC via dual SCCs.
• Features a versatile memory controller capable of interfacing with various memory types such as DRAM, SDRAM, SRAM, and Flash.
• Includes low-power management modes allowing dynamic voltage scaling between high-frequency and low-frequency operation.

Applications

• Cost-sensitive remote-access networking equipment
• Telecommunications infrastructure devices
• Controller applications requiring integrated serial communication capabilities

Procurement Notes

Verify the specific suffix 'SR' confirms support for ATM and Multi-channel HDLC alongside standard Ethernet and USB features. Confirm the 'VR' suffix indicates the required temperature range and package variant. Ensure the 'BU' suffix matches the specified tape-and-reel or tray packaging requirements for your assembly line. Cross-reference the revision level against the latest hardware specification document to ensure compatibility with existing design implementations.

Selection Notes

Select this component when a single-chip solution is required for communications and networking products that need protocol flexibility. It is suitable for designs prioritizing cost-efficiency while maintaining robust connectivity through integrated Ethernet, ATM, and USB interfaces. Consider the static design and low-power modes if thermal management or energy efficiency is a critical constraint in the target application environment.

Part Context

This part belongs to the MPC850 family within the PowerQUICC series by NXP USA Inc. (formerly Freescale Semiconductor). The MPC850SR variant specifically distinguishes itself from other family members by adding support for Asynchronous Transfer Mode (ATM) and Multi-channel HDLC, expanding its utility in complex telecommunications environments compared to base models.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

What specific communication protocols does the MPC850SR support?

The MPC850SR supports Ethernet, Asynchronous Transfer Mode (ATM), Universal Serial Bus (USB), and Multi-channel HDLC.

How does the Communications Processor Module (CPM) function?

The CPM incorporates a specialized, independent 32-bit RISC communications processor that offloads peripheral tasks from the main MPC8xx core, supporting up to seven serial channels and multiple DMA channels.