NXP Semiconductors MCF5280CVM66

Overview

MCF5280CVM66 from NXP (formerly Freescale) is a 32-bit ColdFire V2 microcontroller featuring a 66 MHz core clock, 128 KB on-chip Flash memory, and 16 KB SRAM. It integrates a Fast Ethernet Controller (FEC), FlexCAN 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 MCF5280CVM66 datasheet, MCF5280CVM66 pinout, MCF5280CVM66 application, or MCF5280CVM66 equivalent, key selection criteria include its 66 MHz ColdFire V2 core performance, integrated FEC with IEEE 802.3 MAC layer, FlexCAN 2.0B compliance, and support for external SDRAM via synchronous DRAM controller - all critical for embedded gateway and fieldbus node designs.

Technical Context

The MCF5280CVM66 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 configurable chip select logic, external interface module (EIM), and SDRAM controller supporting up to 128 MB of external memory.

System-level integration includes dual interrupt controllers (INTC0/INTC1), IEEE 1149.1 JTAG debug support, and power management with Run, Wait, Doze, and Stop modes. Peripheral sets are identical to the MCF5282 but exclude the FEC - confirmed by device-specific feature tables in the MCF5282UM Rev. 3 manual.

Key Specifications

Pinout & Package

Package: 256-pin LQFP (28 × 28 mm, 0.4 mm pitch), RoHS-compliant, thermally enhanced with exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF5282CVM66, the MCF5280CVM66 removes the FEC while retaining identical CAN, QSPI, and QADC capabilities - reducing BOM cost by ~12% in non-Ethernet field devices. Versus K60DN512ZVMD10, it offers mature ColdFire toolchain support and deterministic interrupt latency under 200 ns, critical for hard real-time motion control.

Availability

MCF5280CVM66 is available at Aetrix Electronics and suitable for industrial gateways, automotive body controllers, and programmable logic controllers requiring stable component supply, long-term lifecycle assurance, and full traceability.

Supply support for MCF5280CVM66 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 markets, with roots in Freescale's embedded processor heritage.

The MCF5280CVM66 belongs to the ColdFire V2 microcontroller family, designed specifically for deterministic real-time control in resource-constrained industrial and transportation systems where reliability, low power, and protocol integration outweigh raw MIPS.

FAQ

What is the maximum operating frequency of the MCF5280CVM66?

The MCF5280CVM66 operates at a maximum core frequency of 66 MHz, achieved using an internal Phase-Locked Loop (PLL) that multiplies an external crystal or clock input. This frequency is validated across industrial temperature ranges (–40°C to +85°C) and defines the upper bound for instruction execution rate, timer resolution, and peripheral bus bandwidth in the MCF5280CVM66.

Does the MCF5280CVM66 include an Ethernet controller?

No, the MCF5280CVM66 does not include a Fast Ethernet Controller (FEC). Unlike the pin-compatible MCF5282CVM66, the MCF5280CVM66 omits the FEC module to reduce cost and power consumption. Engineers requiring Ethernet must use the MCF5282CVM66 or add an external MAC+PHY solution interfaced via the QSPI or EIM bus.

What debug interface does the MCF5280CVM66 support?

The MCF5280CVM66 supports IEEE 1149.1 JTAG boundary-scan and Background Debug Mode (BDM) via its dedicated TDI/TDO/TCK/TMS/TRST pins. This enables full-speed real-time debugging, flash programming, and non-intrusive trace using standard Freescale Codewarrior or third-party JTAG adapters compatible with ColdFire V2 architecture.

How much on-chip memory does the MCF5280CVM66 provide?

The MCF5280CVM66 integrates 128 KB of on-chip Flash memory for program storage and 16 KB of on-chip SRAM for runtime data and stack operations. Both memory blocks are directly mapped into the ColdFire V2 linear address space and accessible without wait states at maximum core frequency, ensuring predictable execution timing for the MCF5280CVM66.

Is the MCF5280CVM66 pin-compatible with other ColdFire devices?

Yes, the MCF5280CVM66 shares the same 256-pin LQFP package and pinout with the MCF5282CVM66 and MCF5281CVM66. This allows direct PCB reuse when migrating between variants - for example, upgrading from MCF5280CVM66 to MCF5282CVM66 adds Ethernet capability without layout changes, provided the FEC-related signals are properly routed and terminated.