MCF5280CVM66J - 32-bit ColdFire V2 MCU 66MHz | NXP
MPN: MCF5280CVM66J ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1 | $1.00 |
| 10 | $0.95 | $9.50 |
| 100 | $0.9 | $90.00 |
| 500 | $0.85 | $425.00 |
| 1,000 | $0.8 | $800.00 |
MCF5280CVM66J Overview
A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals for embedded control. Within the power-management hierarchy of embedded systems, the MCF528x family targets networked applications where the MCU sits at the node level, connecting sensors and actuators to industrial Ethernet and CAN networks. The ColdFire V2 architecture descends from the classic Motorola 68K lineage, providing a mature, well-documented 32-bit instruction set.
Key features include the 66 MHz ColdFire V2 single-core processor, integrated Ethernet MAC and CAN 2.0B controller for industrial networking, a rich peripheral set (UARTs, timers, ADC, QSPI), and the 256-MAPBGA footprint that conserves board area in space-constrained designs. The ROMless MCF5280 variant requires external program memory, which allows designers to size and select code storage independently.
Technically, the MCF5280 executes code from external memory through the external bus interface, while data and stack reside in the 64 KB on-chip SRAM (64K x 8). This architecture suits applications where firmware is updated frequently or stored in large external flash devices. The integrated Fast Ethernet controller and CAN module reduce external component count, and the device is supported by the mature CodeWarrior toolchain.
Typical applications include industrial Ethernet nodes, building automation controllers, CAN-networked devices, and factory automation equipment. Its integrated networking peripherals make it especially efficient for gateway designs bridging CAN fieldbus to Ethernet backbones.
A key design consideration is that being ROMless, the MCF5280CVM66J must boot from external memory, so boot flash sizing, bus loading, and power-up timing deserve early attention. Note this part is reported obsolete by distributor data, so new designs should evaluate alternatives.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for MCF5280CVM66J — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MCF5280CVM66J (same form factor and footprint) — differing in Package, RoHS Status, Series, Core Processor, Program Memory Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MCF5280CVM66
✅ Drop-In✓ In Stock
$18.4 / Unit
View Datasheet →MCF5280CVF66J
✅ Drop-In✓ In Stock
$17.6 / Unit
View Datasheet →MCF5281CVM66J
✅ Drop-In✓ In Stock
$21 / Unit
View Datasheet →MCF5282CVM66
✅ Drop-In✓ In Stock
$60.3 / Unit
View Datasheet →MCF5280CVM80J
✅ Drop-In✓ In Stock
$9.1 / Unit
View Datasheet →MCF5280CVM66J Maximum Ratings & Electrical Characteristics
| Core Processor | ColdFire V2 |
| Core Size | 32-Bit Single-Core |
| Speed | 66 MHz |
| Program Memory Type | ROMless |
| RAM Size | 64K x 8 |
| Supply Voltage | 2.7 V to 3.6 V |
| Connectivity | CANbus, EBI/EMI, Ethernet |
| Program Memory Size | N/A (ROMless) |
| Package | 256-MAPBGA (17x17 mm) |
| Mounting Type | Surface Mount |
| Supplier Device Package | 256-MAPBGA |
| Product Status | Obsolete |
| Series | MCF528x / MCF5280 |
MCF5280CVM66J 256-mapbga Pin Configuration Guide
Pin configuration for MCF5280CVM66J (256-mapbga package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MCF5280CVM66J.
Refer to the datasheet for full pin configuration.
Typical Applications
MCF5280CVM66J is suitable for 6 applications: Industrial Ethernet Nodes, CAN Fieldbus Devices, Ethernet-to-CAN Gateways, Building Automation Controllers, Legacy Sustaining Engineering, Embedded Control with External Firmware Storage.
Industrial Ethernet Nodes
The MCF5280CVM66J fits industrial Ethernet node designs because its integrated Fast Ethernet controller removes the need for an external MAC, while the 66 MHz ColdFire V2 core comfortably runs a TCP/IP stack alongside application logic. Operating from a 2.7 V to 3.6 V rail suits standard 3.3 V industrial boards. Code is executed from external flash via the EBI, allowing large protocol stacks that exceed the 64 KB on-chip SRAM, and firmware can be field-updated by reflashing external memory without replacing the MCU.
Recommended
CAN Fieldbus Devices
With an on-chip CAN 2.0B controller, the MCF5280CVM66J is well suited to CAN fieldbus nodes in factory automation and vehicle-adjacent industrial equipment. The 66 MHz core handles CAN message scheduling, J1939-style protocol layers, and local control loops without a second processor. The 64 KB SRAM buffers message queues during bus bursts, and the 256-MAPBGA (17x17 mm) footprint fits compact DIN-rail and embedded controller boards operating from a 3.3 V rail within the specified 2.7 V to 3.6 V window.
Recommended
Ethernet-to-CAN Gateways
Bridging CAN fieldbus segments to Ethernet backbones is a natural fit because both controllers are integrated on-chip, eliminating external communication ICs and their firmware complexity. The 66 MHz single-core throughput is sufficient for store-and-forward gateway traffic at industrial line rates, while the external bus interface allows adding serial flash for storing gateway configuration and web server assets. Designs benefit from the mature ColdFire toolchain and the single 3.3 V supply shared by the MCU, PHY, and transceiver circuitry.
Recommended
Building Automation Controllers
Building automation panels require networked control, moderate compute, and long product lives - all matched by the MCF5280CVM66J's Ethernet plus CAN connectivity and the ColdFire family's field-proven reliability. The 64 KB SRAM holds control state and communication buffers, while external flash stores application firmware and configuration tables. Its 2.7 V to 3.6 V operating range tolerates the supply sag common in panel power distributions, and the 17x17 mm BGA keeps controller PCB area small for wall-mounted enclosure products.
Recommended
Legacy Sustaining Engineering
For existing production lines designed around the MCF528x family, the MCF5280CVM66J supports sustaining-engineering needs: replacement stock for field returns, second-source inventory alongside MCF5280CVF66J and MCF5281CVM66J, and last-time-buy planning. Because the part is obsolete per distributor data (status listed by Xecor and Utmel), purchasing teams should validate date codes and buy from authorized excess channels such as Rochester Electronics. Code compatibility with existing external-flash images makes swaps within the same speed grade seamless.
Recommended
Embedded Control with External Firmware Storage
The ROMless architecture suits systems that need large or frequently updated firmware: the EBI connects external NOR flash sized independently of the MCU, so application code can exceed internal-memory limits and be reflashed in the field. The 64 KB SRAM (64K x 8) serves as a fast workspace for data structures and stack, while the 66 MHz core delivers roughly 66 MIPS-class ColdFire V2 throughput from a single 3.3 V rail. The 256-MAPBGA package consolidates I/O for dense multi-function controller boards.
Recommended
Recommended Products Summary
Engineering reference data for MCF5280CVM66J — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MCF5280CVM66 | MCF5280CVF66J | MCF5281CVM66J | MCF5282CVM66 | MCF5280CVM80J |
|---|---|---|---|---|---|---|
| Package | 256-MAPBGA (17x17) | 256-MAPBGA (17x17) - same | 256-MAPBGA (17x17) - same | 256-MAPBGA (17x17) - same | 256-MAPBGA (17x17) - same | 256-MAPBGA (17x17) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Speed | 66 MHz | 66 MHz | 66 MHz | 66 MHz | 66 MHz | 80 MHz |
| Program Memory | ROMless | ROMless | ROMless | ROMless | Internal Flash | ROMless |
| Connectivity | CANbus, EBI/EMI, Ethernet | CANbus, EBI/EMI, Ethernet | CANbus, EBI/EMI, Ethernet | CANbus, EBI/EMI, Ethernet | CANbus, EBI/EMI, Ethernet | CANbus, EBI/EMI, Ethernet |
Key Differentiators
- ROMless architecture for flexible external code storage (vs MCF5282CVM66)
- Lower cost and equal footprint versus higher-speed variant (vs MCF5280CVM80J)
- Integrated Ethernet + CAN on one chip (vs MCF5280CVF66J)
Design Notes
The MCF5280CVM66J is ROMless: it cannot boot without external non-volatile memory. Verify your external flash device meets the EBI timing requirements at 66 MHz bus operation, including address setup, chip-select access time, and bus turnaround. At cold temperatures flash access times degrade - derate your flash speed grade accordingly. Confirm boot chip-select configuration before first power-up, since an incorrect boot port size or wait-state setting will prevent code fetch.
Operate the device from a regulated 3.3 V rail within the specified 2.7 V to 3.6 V window. A 256-ball BGA has multiple VDD/VSS balls; per standard MCF528x practice all supply balls must be connected, each with local decoupling (0.1 uF ceramic close to the ball via). Core and I/O supply details for this exact part should be confirmed against the official NXP datasheet, as multi-rail devices require correct sequencing to avoid latch-up.
The 256-MAPBGA at 17x17 mm with 1.0 mm ball pitch typically requires a 4-layer minimum PCB with via-in-pad or dog-bone escape routing. Prioritize short, matched traces on the external bus (address/data) lines to the boot flash - keep stubs under a few centimeters and add series termination on fast edges if signal integrity issues appear. The 64 KB SRAM is internal, so no external RAM routing is needed, simplifying layout versus bus-RAM designs.
Route the Ethernet MAC's MII/RMII signals to the external PHY as a controlled-impedance group and keep the 25 MHz reference clock path short with a local ground return. Separate CAN and Ethernet grounds at the connector per standard industrial practice. Because the part is obsolete, archive your layout and gerber files with your firmware so a future redesign to a supported MCU family can reuse the board outline and connector positions.
Compliance Information
Compliance status not stated in the provided web data; verify on the official NXP product page. The J suffix in the ordering code often indicates Pb-free/RoHS packaging per NXP convention, but this must be confirmed against NXP documentation.
