NXP Semiconductors MCF5280CVF66

Overview

MCF5280CVF66 from NXP (formerly Freescale) is a 32-bit ColdFire V2 core microcontroller featuring 66 MHz operation, 128 KB on-chip Flash memory, and 16 KB SRAM. It integrates FlexCAN, QSPI, I²C, UARTs, QADC, FEC Ethernet controller, and a Phase-Locked Loop (PLL) for deterministic real-time control in industrial networking and motor drive applications.

For engineers reviewing the MCF5280CVF66 datasheet, MCF5280CVF66 pinout, MCF5280CVF66 application, or MCF5280CVF66 equivalent, key selection considerations include its 66 MHz CPU frequency, 128 KB Flash/16 KB SRAM memory map, FlexCAN 2.0B compliance, 10/100 Mbps Fast Ethernet interface, and QFP-144 package with 112 I/O pins - all critical for embedded control systems requiring deterministic timing and multi-protocol connectivity.

Technical Context

The MCF5280CVF66 implements the ColdFire V2 microarchitecture with a 5-stage pipeline, 4 KB instruction/data cache, and enhanced MAC unit supporting fractional arithmetic. Its system-level integration includes a configurable PLL with programmable dividers, dual interrupt controllers (INTC0/INTC1), and a 32-bit external bus interface supporting SDRAM and asynchronous peripherals.

It supports multiple low-power modes (Run, Wait, Doze, Stop) with peripheral-specific clock gating and retains SRAM contents in Stop mode. The FlexCAN module complies with ISO 11898-1:2003 and supports up to 64 message objects with hardware acceptance filtering and FIFO buffering.

Key Specifications

Pinout & Package

144-pin Low-Profile Quad Flat Package (LQFP), VF variant, with 112 general-purpose I/O pins, 8 dedicated JTAG/BDM debug pins, and power/ground distribution optimized for EMI suppression in industrial environments.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with MCF5282CVF66, the MCF5280CVF66 reduces SRAM and omits FEC - lowering BOM cost and power in CAN-centric control nodes. Against K60DN512ZVLQ10, it offers proven ColdFire toolchain stability and deterministic interrupt latency, critical for hard real-time motor control.

Availability

MCF5280CVF66 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and smart energy metering requiring stable component supply, long-term lifecycle support, and qualified manufacturing traceability.

Supply support for MCF5280CVF66 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Freescale's embedded processor heritage.

The ColdFire family, including the MCF5280CVF66, was designed for deterministic real-time control in resource-constrained industrial systems - emphasizing low-latency interrupt response, on-chip protocol accelerators, and long-lifecycle availability.

FAQ

What is the maximum operating frequency of the MCF5280CVF66?

The MCF5280CVF66 operates at a maximum CPU frequency of 66 MHz, achieved via its integrated Phase-Locked Loop (PLL) with programmable dividers. This frequency is guaranteed across the industrial temperature range (–40°C to +85°C) and defines the upper bound for instruction execution rate, timer resolution, and real-time control loop bandwidth. The MCF5280CVF66 achieves this speed while maintaining deterministic interrupt latency and cache coherency for time-critical applications.

Does the MCF5280CVF66 include an integrated Ethernet controller?

No, the MCF5280CVF66 does not include a Fast Ethernet Controller (FEC). That feature is present in the pin-compatible MCF5282CVF66 variant. The MCF5280CVF66 retains all other major peripherals - FlexCAN, QSPI, I²C, UARTs, QADC, and EMAC - making it suitable for CAN-based industrial networks where Ethernet is implemented externally or omitted. Its 144-pin LQFP footprint remains identical to the MCF5282CVF66.

How much on-chip Flash and SRAM does the MCF5280CVF66 provide?

The MCF5280CVF66 integrates 128 KB of on-chip Flash memory and 16 KB of on-chip SRAM. The Flash supports secure programming, user-mode protection, and back-door access for recovery; the SRAM retains data in Stop mode and is directly accessible by the ColdFire core and DMA controller. These memory sizes are fixed for this variant and align with its target use cases in deterministic control applications with moderate firmware complexity.

What communication interfaces are supported by the MCF5280CVF66?

The MCF5280CVF66 supports FlexCAN 2.0B, three UART modules, I²C bus, Queued Serial Peripheral Interface (QSPI), and an External Interface Module (EIM) for SDRAM and asynchronous peripherals. It lacks the Fast Ethernet Controller found in the MCF5282CVF66. All interfaces are fully integrated with DMA support and hardware message buffering - enabling concurrent multi-protocol operation without CPU saturation.

Is the MCF5280CVF66 supported by modern development tools?

Yes, the MCF5280CVF66 is supported by NXP's legacy ColdFire toolchain, including CodeWarrior Development Studio v10.7 and compatible GCC-based toolchains (e.g., GNU ColdFire tools). While NXP has shifted focus to ARM-based Kinetis and i.MX families, the MCF5280CVF66 remains fully documented with published reference manuals, errata, and application notes. Aetrix Electronics provides validated BSPs and schematic design guidance for ongoing production use.