MPC853TVR100A

Overview

The MPC853TVR100A is a microprocessor based on the PowerPC architecture, specifically the MPC8xx core within the PowerQUICC family. It operates at a maximum frequency of 100 MHz with a 66-MHz external bus. The device utilizes a 1.8-V core voltage and 3.3-V I/O operation, featuring 5-V TTL compatibility on specific pins. Key internal components include a 4-Kbyte instruction cache, a 4-Kbyte data cache, and an 8-Kbyte dual-port RAM managed by the Communications Processor Module (CPM).

Feature Summary

• Integrated Fast Ethernet Controller (FEC) supporting 10-Mbps operation.
• Communications Processor Module (CPM) providing serial DMA channels and dual-port RAM for efficient data handling.
• System Integration Unit (SIU) managing memory controllers, timers, and interrupt sources.
• Support for multiple communication protocols including HDLC, SDLC, UART, and SPI via Serial Communication Controllers.

Applications

• Ethernet routers and hubs
• VoIP clients
• Wi-Fi access points
• CPE equipment

Procurement Notes

Verify the component revision and manufacturing date code against current availability lists, as this part may be subject to obsolescence or lifecycle changes. Confirm that the package type matches the target PCB footprint requirements. Ensure power supply sequencing circuits are designed to meet the specified voltage ramp constraints between VDDL and VDDH to prevent device damage during startup.

Selection Notes

Select this processor for applications requiring integrated communications capabilities alongside a standard PowerPC core. Consider the thermal resistance characteristics and board layout requirements for heat dissipation when designing the system. Verify that the available memory interfaces and peripheral counts meet the specific application needs without requiring additional external controllers.

Part Context

This component belongs to the Freescale Semiconductor MPC853T series, a derivative of the MPC860 PowerQUICC family. It is designed as a versatile one-chip integrated microprocessor and peripheral combination. The device targets controller applications, particularly those involving Ethernet control and network connectivity.

Replacement Considerations

Consult official NXP/Freescale documentation for confirmed substitute part numbers. Cross-reference pinouts and electrical specifications carefully if considering alternative devices from other manufacturers.

FAQ

What is the maximum operating frequency of the MPC853TVR100A?

The MPC853TVR100A can operate at up to 100 MHz on the MPC8xx core with a 66-MHz external bus.

Does the MPC853TVR100A support 5-V tolerant inputs?

Yes, specific pins such as PA, PB15, PC, PD, TDI, TDO, TCK, TRST, TMS, MII_TXEN, and MII_MDIO are 5-V tolerant.

What types of caches are included in the MPC853TVR100A?

The device includes a 4-Kbyte instruction cache and a 4-Kbyte data cache, both of which are two-way set-associative with 128 sets.