MPC852TZT100A

Overview

The MPC852TZT100A is a PowerQUICC microprocessor based on the MPC8xx core, manufactured by NXP Semiconductors. It features a 32-bit data bus and operates at a maximum clock frequency of 100 MHz with a 66 MHz external bus. The device utilizes a PBGA-256 package and requires a 1.8 V core voltage alongside 3.3 V I/O operation. Internal memory includes 4 kB instruction cache, 4 kB data cache, and 8 kB dual-port RAM. It supports interfaces such as Ethernet, I2C, SPI, and UART.

Feature Summary

• Integrates an embedded MPC8xx processor core with MMUs and set-associative caches for efficient execution.
• Includes a Communications Processor Module (CPM) with dual-port RAM and serial DMA channels to handle communication protocols.
• Features a Fast Ethernet Controller (FEC) supporting 10/100 Mbps operations for network control applications.
• Provides system integration capabilities including timers, watchdogs, and PCMCIA interface support.

Applications

• Ethernet routers and hubs
• VoIP clients
• WiFi access points
• Customer Premises Equipment (CPE)

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm datasheet revision MPC852TEC Rev. 4 compatibility. Ensure power sequencing adheres to specified voltage ramp requirements to prevent ESD diode forward biasing. Validate thermal management against junction-to-ambient resistance values for the specific PCB layout.

Selection Notes

Select this component for networking applications requiring integrated communications processing. Verify that the 1.8 V core and 3.3 V I/O voltages match the system power design. Ensure the PBGA-256 package footprint fits the target PCB constraints. Confirm that the 100 MHz core speed meets the processing requirements for the intended Ethernet or serial communication tasks.

Part Context

This part belongs to the MPC860 PowerQUICC family derivatives. It serves as a versatile one-chip integrated microprocessor and peripheral combination designed for controller applications. The architecture combines a RISC processor with a dedicated communications controller module to reduce system complexity in networking products.

Replacement Considerations

Consult the MPC866 PowerQUICC Family Reference Manual for functional comparisons. Review Freescale/NXP product summaries for direct hardware-compatible substitutes within the same family lineage.