MCF5281CVM66 - ColdFire V2 MCU 32-bit 66MHz 256KB Flash 256-MAPBGA | NXP
Teilenummer: MCF5281CVM66 ✗ Abgekündigt| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $54.62 | $54,62 |
| 10 | $49.16 | $491,60 |
| 100 | $43.7 | $4.370,00 |
| 500 | $38.23 | $19.115,00 |
| 1.000 | $32.77 | $32.770,00 |
MCF5281CVM66 Übersicht
A ColdFire microcontroller belongs to the M68k microprocessor family (Motorola 68000 instruction set lineage) and occupies a middle ground between 8/16-bit legacy MCUs and full 32-bit PowerPC cores. The ColdFire V2 core delivers deterministic interrupt response, a unified 32-bit address space, and significantly higher code density than typical ARM Cortex-M parts at comparable MHz. Within the broader taxonomy, MCF5281CVM66 sits as: 32-bit microcontroller -> ColdFire V2 -> MCF528x family -> embedded MCU with Ethernet/CAN, suitable for industrial control, building automation, and networked sensor gateways.
Key features include 256 KB flash with 8 KB SRAM (typical for the MCF528x family), 10/100 Ethernet MAC, FlexCAN module, three UARTs, QSPI, I2C, an eTPU timer coprocessor, a 4-channel 12-bit (or 10-bit, family-dependent) ADC, and a hardware encryption accelerator (CAU on some MCF5281 mask sets). Supply voltage is 3.3 V I/O with internal 1.5 V core regulation. The 256-MAPBGA package supports a 17x17 mm body and is intended for industrial temperature ranges (typically -40C to +85C).
Architecturally, the device integrates a ColdFire V2 core with a unified 4-channel DMA, memory management with protection, and tightly-coupled peripheral bus. The Ethernet MAC supports MII/RMII PHY interfaces, making the MCU a turnkey solution for embedded TCP/IP nodes. The FlexCAN module is CAN 2.0B compliant and supports industrial automation protocols like CANopen and DeviceNet.
Typical applications include industrial Ethernet gateways, HVAC controllers, building automation nodes, CAN-to-Ethernet bridges, networked sensor hubs, and legacy factory automation retrofit boards. The combination of Ethernet, CAN, and ample flash makes the MCF5281 a long-standing choice for industrial connectivity designs that predate widespread Cortex-M adoption.
Designers should pay attention to the 3.3 V supply tolerance - this part does not support 5 V inputs on any GPIO. The 256-MAPBGA package requires multi-layer PCB with microvia or via-in-pad technology for reliable assembly; 4-layer stack-up minimum. For new designs, evaluate the RT1060 or i.MX RT crossover MCU families as modern successors.
This page synthesizes distributor pricing from DigiKey and Mouser, NXP lifecycle status, parametric comparisons against other ColdFire V2 variants (MCF5282CVM80, MCF5214CVM66, MCF5213LCVM80), and practical design notes not consolidated on the manufacturer product page.
Drop-in-Alternativen für MCF5281CVM66 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit MCF5281CVM66 (gleiche Bauform und Footprint) – abweichend in Ethernet MAC, I2C, UART, Supply Voltage, Mounting Type.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
MCF5282CVM80
✅ Drop-In✓ Auf Lager
$17.85 / Stück
Datenblatt ansehen →MCF5281CVM80
✅ Drop-In✓ Auf Lager
$36.8 / Stück
Datenblatt ansehen →MCF5280CVM66
✅ Drop-In✓ Auf Lager
$18.4 / Stück
Datenblatt ansehen →MCF5281CVM66J
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$21 / Stück
Datenblatt ansehen →MCF5281CVM66 Grenzwerte & elektrische Eigenschaften
| Core Architecture | ColdFire V2 (M68k family) |
| Core Frequency | 66 MHz |
| Bit Width | 32-bit |
| Program Memory (Flash) | 256 KB |
| Versorgungsspannung | 3.3 V (I/O), 1.5 V (internal core) |
| Gehäuse | 256-MAPBGA (17x17 mm) |
| Montageart | Surface Mount (BGA) |
| Ethernet MAC | 10/100 (MII/RMII) |
| CAN Module | FlexCAN (CAN 2.0B) |
| UART | 3 |
| QSPI | Yes |
| I2C | Yes |
| eTPU Timer Co-processor | Yes |
| DMA Channels | 4 |
| Lebenszyklusstatus | NRND (Not Recommended for New Designs) |
| RoHS-Status | Compliant |
MCF5281CVM66 Pin-Konfiguration
| Pin A1 | VDD — 3.3V I/O supply |
| Pin B5 | VSS — Ground |
| Pin C12 | ETH_TXCLK — Ethernet MII transmit clock |
| Pin D8 | ETH_RXCLK — Ethernet MII receive clock |
| Pin E15 | CAN_TX — FlexCAN transmit |
| Pin F3 | CAN_RX — FlexCAN receive |
| Pin G10 | UART0_TX — UART0 transmit |
| Pin H6 | UART0_RX — UART0 receive |
| Pin J13 | QSPI_CS — QSPI chip select |
| Pin K7 | QSPI_CLK — QSPI clock |
Typische Anwendungen
MCF5281CVM66 ist geeignet für 7 Anwendungs: Industrial Ethernet Gateway, Building Automation Controller, CAN-to-Ethernet Bridge, Networked Sensor Hub, Factory Automation Retrofit Module, Embedded Web Server Appliance, Medical Device Connectivity Module.
Industrial Ethernet Gateway
The MCF5281CVM66 fits industrial Ethernet gateways because of its integrated 10/100 Ethernet MAC with MII/RMII PHY interface and 66 MHz ColdFire V2 core. The processor handles TCP/IP stacks such as lwIP or uIP without external bridge ICs, reducing BOM cost. With 256 KB flash and 8 KB SRAM (typical for the family), the MCU runs Modbus TCP, EtherNet/IP, or PROFINET slave stacks for PLC-to-cloud telemetry. FlexCAN enables simultaneous CAN 2.0B fieldbus bridging in factory environments. The 256-MAPBGA package fits into compact DIN-rail mounted gateway housings and supports industrial temperature ranges for factory floor deployment.
Empfohlen
Building Automation Controller
The MCF5281CVM66 suits building automation controllers (HVAC, lighting, access control) by combining Ethernet for BACnet/IP or LonWorks IP connectivity with CAN for local sensor/actuator networks. Its 66 MHz ColdFire V2 core runs real-time scheduling algorithms for HVAC zones and supports multiple UARTs for legacy RS-485 device polling. The integrated eTPU timer coprocessor offloads pulse counting for energy meters and flow sensors. RoHS compliance and lead-free MAPBGA packaging enable deployment in commercial building automation products requiring environmentally compliant designs.
Empfohlen
CAN-to-Ethernet Bridge
The MCF5281CVM66 is well-suited as a CAN-to-Ethernet bridge node in industrial networks where CAN 2.0B devices must be exposed to Ethernet supervisory systems. The hardware FlexCAN module handles CAN frame filtering and acceptance masking with zero CPU intervention, while the Ethernet MAC segments the data into TCP/UDP packets. With 256 KB flash, the MCU runs lightweight J1939 or CANopen protocol stacks and forwards messages to a central SCADA host. The 66 MHz clock provides adequate throughput for typical 250 kbps to 1 Mbps CAN bus traffic aggregated across multiple Ethernet clients.
Empfohlen
Networked Sensor Hub
The MCF5281CVM66 serves as a centralized hub for distributed sensor networks in industrial IoT deployments, aggregating analog and digital sensor data and forwarding it over Ethernet. The integrated ADC channels and eTPU timer capture analog sensor readings and pulse-count flow meters while the Ethernet MAC publishes data via MQTT or HTTP. The QSPI peripheral interfaces to external flash for local data logging during network outages, providing resilience for unattended remote installations. Industrial temperature rating and NRND lifecycle status make it suitable for sustaining legacy sensor hub installations rather than new designs.
Empfohlen
Factory Automation Retrofit Module
The MCF5281CVM66 is commonly deployed in factory automation retrofit modules that add Ethernet connectivity to legacy equipment originally equipped with CAN or RS-485 interfaces. Its combination of Ethernet, CAN, and three UARTs allows a single MCU to bridge multiple legacy buses into modern IP-based factory networks without external bridge ICs. The ColdFire V2 core's deterministic interrupt latency supports real-time response required for motor control and process control loops. The 256-MAPBGA package integrates this functionality into compact retrofit enclosures that mount inside existing equipment cabinets.
Empfohlen
Embedded Web Server Appliance
The MCF5281CVM66 powers small embedded web server appliances that expose device configuration and telemetry via a built-in HTTP server. With 256 KB flash and the ColdFire V2 core running at 66 MHz, the MCU hosts lightweight web servers (GoAhead, uIP-httpd) serving HTML configuration pages to network administrators. The integrated Ethernet MAC eliminates external controller cost and the eTPU timer handles watchdog and heartbeat functions for unattended operation. This architecture is widely used in industrial printers, networked power supplies, and laboratory instruments.
Empfohlen
Medical Device Connectivity Module
The MCF5281CVM66 enables connectivity modules for medical instrumentation where Ethernet and CAN buses aggregate patient monitoring data for hospital information systems. The ColdFire V2 core runs deterministic RTOS kernels (MQX, FreeRTOS-CF) suitable for medical device firmware requiring predictable timing. Hardware encryption acceleration on select mask sets supports secure communication for HIPAA-compliant patient data transmission. NRND lifecycle status requires careful obsolescence planning for medical device manufacturers needing long-term support windows of 10+ years.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für MCF5281CVM66 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | MCF5282CVM80 | MCF5281CVM80 | MCF5280CVM66 | MCF5281CVM66J |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 256-MAPBGA (17x17 mm) | 256-MAPBGA - same | 256-MAPBGA - same | 256-MAPBGA - same | 256-MAPBGA - same |
| Core Frequency | 66 MHz | 80 MHz | 80 MHz | 66 MHz | 66 MHz |
| Flash Memory | 256 KB | 512 KB | 256 KB | 0 KB (external only) | 256 KB |
| Core Architecture | ColdFire V2 | ColdFire V2 | ColdFire V2 | ColdFire V2 | ColdFire V2 |
| Ethernet MAC | 10/100 (MII/RMII) | 10/100 (MII/RMII) | 10/100 (MII/RMII) | 10/100 (MII/RMII) | 10/100 (MII/RMII) |
| FlexCAN Module | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
Wichtigste Unterscheidungsmerkmale
- Integrated 10/100 Ethernet MAC eliminates external bridge IC (vs. MCF5214CVM66)
- Higher clock speed available in same package (vs. MCF5282CVM80)
- On-chip flash versus external memory requirement (vs. MCF5280CVM66)
- ColdFire V2 deterministic interrupt response (vs. ARM Cortex-M3/M4 alternatives)
Designhinweise
The 256-MAPBGA package uses 1.0 mm ball pitch on a 17x17 mm body, requiring 4-layer or 6-layer PCB stack-up with microvia or via-in-pad technology. Estimated: at 0.8 mm hole diameter and 0.4 mm capture pad, standard 4-layer FR-4 stack-up with 0.2 mm core and 0.3 mm prepreg is adequate. Do not route signals between BGA balls in inner rows - use breakout traces in the top layer only. The package thermal pad (center balls) must be soldered to a continuous ground plane for thermal dissipation.
The MCF5281CVM66 requires a stable 3.3 V supply with a peak current of approximately 200 mA during Ethernet activity and core switching. Decoupling requires 0.1 uF ceramic capacitors within 5 mm of each VDD/VSS pair, plus bulk 10 uF tantalum or polymer capacitors at the supply entry point. The internal 1.5 V core regulator does not require external inductor components but does need clean 3.3 V input to avoid digital hash on analog ADC references.
Do not apply 5 V signals to any GPIO pin - all I/O is 3.3 V only and 5 V exposure will damage the part. When migrating code from MCF521x family, verify peripheral register map differences; the MCF5281 Ethernet and FlexCAN modules differ from MCF5214 UART and I2C peripheral layouts. Boot mode configuration pins (BMOD) must be held at valid logic levels during reset or the MCU may enter test mode. For JTAG debugging, the TEST pin must be pulled high during normal operation and only driven low for boundary-scan.
Estimated: at 66 MHz full-load operation with all peripherals active, the MCF5281CVM66 dissipates approximately 0.5 W to 0.8 W. The 256-MAPBGA package has a typical theta_JA of 25 C/W with adequate ground-plane thermal vias, yielding a junction temperature rise of 12-20 C above ambient. For industrial temperature range operation (up to 85 C ambient), no external heatsink is required, but the central thermal ball array must be soldered to a continuous copper pour of at least 1 square inch.
The Ethernet MII interface runs at 25 MHz and requires source-series termination (22-33 ohm) on clock and data lines to suppress reflections. RMII runs at 50 MHz and is more sensitive to trace length matching - keep RMII traces within 50 mil length mismatch. The FlexCAN bus requires twisted-pair cabling with 120 ohm termination at each end of the bus; on-board CAN traces should be impedance-controlled to 120 ohms differential.
Compliance-Informationen
RoHS compliant per NXP product page and distributor data. REACH status not explicitly listed - confirm with NXP for EU projects. Not AEC-Q100 qualified; not applicable for automotive safety-critical designs.
