MPC850DSLCZQ50BU

Overview

The MPC850DSLCZQ50BU 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 integrates an embedded MPC8xx core and a Communications Processor Module (CPM). Key interfaces include Ethernet support at 10 Mbps, USB 1.x, PCMCIA-ATA, I2C, IrDA, HDLC/SDLC, TDM, and UART/USART. The component operates on a 3.3V I/O voltage and supports an operating temperature range of 0°C to 95°C.

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, ATM, USB, HDLC, and SDLC via Serial Communications Controllers (SCCs).
• Features a versatile memory controller capable of interfacing with DRAM, SDRAM, SRAM, and Flash EPROM.
• Includes advanced low-power management modes such as Doze, Sleep, and Deep Sleep for optimized energy consumption.

Applications

• Cost-sensitive remote-access networking products
• Telecommunications applications
• Controller applications requiring integrated communications processing

Procurement Notes

Verify the specific suffix 'DSLZQ50BU' against official documentation to confirm pinout, packaging dimensions, and electrical characteristics match design requirements. Confirm RoHS compliance status as indicated in distributor records. Ensure thermal management solutions account for junction temperature limits specified in the datasheet. Validate that the obsolete part status does not conflict with long-term supply chain strategies.

Selection Notes

Select this component when a PowerPC-based solution with integrated Ethernet and ATM support is required. The inclusion of a Communications Processor Module allows the main core to focus on complex control tasks while handling serial data streams independently. Consider the 256-pin BGA package constraints and 3.3V logic levels during PCB layout. Verify compatibility with existing memory controllers and peripheral buses before integration.

Part Context

This part belongs to the MPC8xx series of PowerQUICC processors designed by Freescale Semiconductor, now NXP. These devices are characterized by their integration of a RISC processor core with specialized hardware for network and telecommunications protocols. The MPC850 variant specifically targets applications needing robust serial communication capabilities alongside standard computing functions.

Replacement Considerations

Consult official substitution lists for direct replacements. Generic cross-references may not preserve the specific ATM or USB interface configurations defined in the DSL suffix.

FAQ

What serial protocols are supported by the SCCs in the MPC850?

The Serial Communications Controllers (SCCs) support Ethernet, ATM, HDLC, SDLC, AppleTalk, UART, and transparent bit-stream operations.

Does the MPC850DSLCZQ50BU support Asynchronous Transfer Mode (ATM)?

Yes, the DSL variant includes support for ATM via its UTOPIA ports, in addition to Ethernet and USB capabilities.