MPC852TCVR80A

Overview

The MPC852TCVR80A is a PowerQUICC III derivative microprocessor based on the PowerPC architecture. It features an embedded MPC8xx core operating up to 100 MHz with a maximum external bus frequency of 66 MHz. The device utilizes a 0.18-micron process and operates with a 1.8-V core voltage and 3.3-V I/O voltage, providing 5-V TTL compatibility. Key specifications include a 32-bit data bus, 32 address lines, integrated MMUs with TLBs, and dual 4-Kbyte caches.

Feature Summary

• Integrated Communications Processor Module (CPM) featuring an 8-Kbyte dual-port RAM and eight serial DMA channels for efficient data handling.
• Fast Ethernet Controller (FEC) supporting full 10-Mbps operation compliant with IEEE 802.3 standards.
• System Integration Unit (SIU) providing bus monitoring, software watchdog, periodic interrupt timer, and clock synthesizer functions.
• Comprehensive peripheral set including two SCCs, one SMC, one SPI interface, and a PCMCIA interface.

Applications

• Ethernet routers and hubs
• VoIP clients
• WiFi access points
• CPE equipment

Procurement Notes

Verify the specific suffix 'CVR80A' against official NXP documentation to confirm the exact speed grade and package variant. Ensure that the required 1.8 V core and 3.3 V I/O power sequencing constraints are strictly followed during design implementation to maintain device reliability.

Selection Notes

Select this component for applications requiring robust Ethernet control and low-power operation. The device supports both 1:1 and 2:1 core-to-bus frequency modes. Designers must account for the mandatory reset configuration values in the boot code to ensure proper system initialization.

Part Context

This processor belongs to the MPC860 PowerQUICC family, serving as a subset optimized for communication controller applications. It integrates the MPC8xx core with specialized peripherals like the CPM and SIU, targeting high-performance embedded networking tasks within the Power Architecture ecosystem.

Replacement Considerations

Consult the MPC866 PowerQUICC Family Reference Manual for compatible derivatives within the same family hierarchy.