MCF51AC128CVFUE

Microcontrollers Overview

The MCF51AC128CVFUE is a 32-bit microcontroller from the NXP ColdFire family, utilizing the V1 core with a maximum frequency of 50.33 MHz. It features 128 KB of flash memory and 16 KB of SRAM within a 64-pin QFP package. The device operates across an industrial temperature range of -40°C to +85°C and supports supply voltages between 2.7 V and 5.5 V. Key peripherals include two flexible timer modules (FTM), two serial communications interfaces (SCI), two serial peripheral interfaces (SPI), and an analog-to-digital converter (ADC) with up to 20 channels.

Microcontrollers Feature Summary

• Integrates a 32-bit ColdFire V1 processor core for efficient code execution and interrupt handling.
• Includes rapid general-purpose I/O (RGPIO) allowing direct CPU-speed access to port pins.
• Features a multipurpose clock generator (MCG) supporting crystal oscillators and internal frequency-locked loops.
• Provides hardware-based cyclic redundancy check (CRC) generation for data integrity verification.

Microcontrollers Applications

• Industrial control systems requiring robust real-time processing
• Automotive body electronics and sensor interface modules
• General-purpose embedded applications needing high-speed serial communication

Microcontrollers Procurement Notes

Verify the specific ordering suffix 'C' confirms the -40°C to +85°C operating temperature range and absence of CAN functionality. Ensure the 'V' suffix indicates lead-free packaging compliance. Confirm the 'E' designation matches the required 64-pin QFP physical footprint before finalizing procurement orders.

Microcontrollers Selection Notes

Select this component when a transition from 8-bit architectures is needed without adopting complex ARM ecosystems. It offers sufficient memory for moderate firmware complexity while maintaining compatibility with legacy development tools. Verify that the lack of integrated CAN does not conflict with network requirements, as other variants in the series provide this feature.

Microcontrollers Part Context

This part belongs to the MCF51AC series, designed as a scalable solution within the Controller Continuum portfolio. It bridges the gap between 8-bit MCUs and higher-performance processors by offering 32-bit performance with simplified peripheral integration. The series supports migration paths for designs originally built on older Freescale platforms.

Microcontrollers Replacement Considerations

Direct replacements within the same package and pinout include MCF51AC128CCFUE or MCF51AC128AVFUE. Note that the latter includes CAN support and may require software adjustments if CAN peripherals are unused. Cross-series upgrades to MCF51EM or MCF51MM families require significant schematic and code modifications due to architectural differences.