NXP Semiconductors MCF5280CVF66J

Overview

MCF5280CVF66J from NXP (formerly Freescale) is a 32-bit ColdFire V2 microcontroller featuring a 66 MHz core clock, 256 KB on-chip Flash memory, and 32 KB SRAM. It integrates a Fast Ethernet Controller (FEC), FlexCAN 2.0B interface, QSPI, I²C, UARTs, QADC, and programmable timers. Designed for industrial networking and real-time control applications requiring deterministic timing and protocol stack support.

For engineers reviewing the MCF5280CVF66J datasheet, MCF5280CVF66J pinout, MCF5280CVF66J application, or MCF5280CVF66J equivalent, key selection criteria include its 66 MHz ColdFire V2 core performance, integrated FEC with IEEE 802.3 MAC, FlexCAN message buffering, and QADC resolution for sensor acquisition in embedded control systems.

Technical Context

The MCF5280CVF66J implements the ColdFire V2 microarchitecture with a 5-stage pipeline, 4 KB instruction cache, and enhanced multiply-accumulate (EMAC) unit supporting fractional arithmetic. Its memory subsystem includes 256 KB Flash with security protection, 32 KB SRAM, and external bus interface supporting SDRAM and asynchronous peripherals.

Peripherals are managed via dedicated modules: FEC handles full-duplex 10/100 Mbps Ethernet with DMA-assisted packet handling; FlexCAN supports up to 64 message buffers with hardware filtering; QADC provides 12-bit resolution with 16-channel multiplexing and queue-based conversion sequencing.

Key Specifications

Pinout & Package

This device is housed in a 256-pin LQFP package (28 × 28 mm, 0.5 mm pitch) with dedicated power/ground pairs, differential Ethernet PHY interface pins, CANH/CANL terminals, and multiplexed peripheral signal groups including QSPI, I²C, and UART.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF5282CVF66 and K60DN512ZVMD10, the MCF5280CVF66J offers optimal balance of proven ColdFire toolchain support, integrated FEC hardware acceleration, and lower power consumption in industrial temperature range operation - making it ideal for cost-sensitive, long-lifecycle Ethernet-connected controllers.

Availability

MCF5280CVF66J is available at Aetrix Electronics and suitable for industrial networking gateways, automotive body electronics, smart energy meters, and networked HVAC controllers requiring stable component supply and long-term manufacturing continuity.

Supply support for MCF5280CVF66J 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.

The MCF5280CVF66J belongs to the ColdFire V2 microcontroller family, designed specifically for deterministic real-time control in resource-constrained embedded systems requiring integrated communication peripherals and low-power operation.

FAQ

What is the maximum operating frequency of the MCF5280CVF66J?

The MCF5280CVF66J operates at a maximum core frequency of 66 MHz, achieved using an internal Phase-Locked Loop (PLL) that multiplies an external crystal or oscillator input. This frequency is validated across the industrial temperature range (–40°C to +85°C) and supports deterministic real-time execution of protocol stacks and control algorithms in the MCF5280CVF66J.

Does the MCF5280CVF66J include an integrated Ethernet MAC?

Yes, the MCF5280CVF66J integrates a full IEEE 802.3-compliant Fast Ethernet Controller (FEC) with hardware-accelerated transmit/receive DMA, MII interface support, and 2 KB packet buffer memory. This eliminates the need for external MAC+PHY combinations in many industrial Ethernet applications, and is a defining feature of the MCF5280CVF66J.

How much on-chip Flash and SRAM does the MCF5280CVF66J provide?

The MCF5280CVF66J includes 256 KB of on-chip Flash memory for program storage and firmware updates, plus 32 KB of on-chip SRAM for runtime data, stack, and heap operations. Both memories are accessible without wait states at maximum core frequency, and the Flash supports secure protection mechanisms - key attributes of the MCF5280CVF66J architecture.

Is the MCF5280CVF66J pin-compatible with other ColdFire devices?

The MCF5280CVF66J shares the same 256-pin LQFP package and core peripheral mapping with the MCF5282CVF66, enabling direct PCB reuse where the additional ROM bootloader and extended FEC FIFO of the MCF5282CVF66 are not required - a verified layout compatibility for the MCF5280CVF66J.

What development tools support the MCF5280CVF66J?

The MCF5280CVF66J is supported by CodeWarrior Development Studio for ColdFire v10.x, Processor Expert software configuration tools, and standalone GDB-based toolchains. Freescale's official MCF5282UM reference manual applies directly to the MCF5280CVF66J, confirming full debug, flash programming, and peripheral driver compatibility across the family - essential for MCF5280CVF66J project deployment.