MCF5281CVM80 - 80MHz ColdFire V2 MCU 256KB Flash | NXP
Référence : MCF5281CVM80 ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $63.6 | $63,60 |
| 10 | $56.4 | $564,00 |
| 100 | $48.2 | $4 820,00 |
| 500 | $41.1 | $20 550,00 |
| 1 000 | $36.8 | $36 800,00 |
MCF5281CVM80 Présentation
A ColdFire V2 microcontroller is a 32-bit RISC-style processor derived from the original Motorola 68000 instruction set architecture. ColdFire V2 implementations keep the variable-length instruction encoding of the classic M68K while adding a more compact pipeline, on-chip MAC units in higher SKUs, and integrated peripherals. Within NXP's lineup, ColdFire V2 sits between the entry-level ColdFire V1 (smaller flash, simpler peripherals) and the more powerful ColdFire V3/V4 cores (MMU, higher MHz). It is best characterized as a mid-range 32-bit MCU for deterministic real-time control with integrated connectivity.
Key differentiating features of the MCF5281CVM80 include the integrated 10/100 Ethernet MAC with DMA, a CAN 2.0B controller, four DMA channels for offloading data movement, and hardware acceleration for cryptographic-style operations in the same family. The 256-MAPBGA package exposes the full external bus (EBI/EMI), which lets designers connect SDRAM, NOR flash, or ASIC peripherals. Programmable peripherals (PWM timers, watchdog, low-voltage detect, and power-on reset) cover the industrial control safety baseline.
Architecturally, the MCF5281CVM80 uses a unified instruction/data path with Harvard-style bus splits between flash and SRAM, allowing single-cycle access to RAM. The ColdFire V2 core executes most instructions in one clock, delivering 80 Dhrystone MIPS at 80 MHz core clock. The on-chip voltage regulator generates 1.3-1.5 V internal logic from an external 3.3 V supply, simplifying board power design. The 256-MAPBGA package provides ample ground returns for the 80 MHz core.
Typical applications include industrial Ethernet PLCs, building automation gateways, factory-floor protocol bridges, and motor-control front-ends. Industrial Ethernet protocols such as EtherNet/IP, Modbus TCP, and PROFINET can run on the integrated MAC and DMA infrastructure. The CAN interface also enables the part to serve as a CAN-to-Ethernet bridge, a popular topology in automotive test equipment and factory automation.
When designing with the MCF5281CVM80, place four-layer decoupling capacitors (100 nF + 10 µF bulk) directly under the BGA on the inner power plane to control switching noise. The 256-ball MAPBGA requires X-ray or AOI inspection on the production line, since hidden solder joints cannot be optically inspected. Designers must also consider that this part is marked NXP NRND (Not Recommended for New Designs); for new designs, evaluate the MCF5282 or Kinetis family as pin-compatible successors.
This page consolidates distributor pricing, drop-in alternative guidance, and practical layout notes that go beyond the manufacturer datasheet. By comparing verified inventory across DigiKey, Mouser, and Octopart, this page supports engineers planning NRND transitions and procurement teams managing last-time-buy windows.
Alternatives de remplacement direct pour MCF5281CVM80 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MCF5281CVM80 (même facteur de forme et même empreinte) — différant par Package, Operating Temperature, Core Architecture, Ethernet, Ethernet MAC.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MCF5282CVM80
✅ Remplacement direct✓ En stock
$17.85 / unité
Voir la fiche technique →MCF5280CVM80
✅ Remplacement direct✓ En stock
$19.75 / unité
Voir la fiche technique →MCF5281CVM66
✅ Remplacement direct✓ En stock
$32.77 / unité
Voir la fiche technique →MCF5281CVM80
✅ Remplacement direct✓ En stock
$36.8 / unité
Voir la fiche technique →MCF5214CVM66
✅ Remplacement direct✓ En stock
$11.85 / unité
Voir la fiche technique →MCF5281CVM80 Valeurs maximales et caractéristiques électriques
| Core Processor | ColdFire V2 |
| Core Size | 32-Bit |
| Maximum Clock Speed | 80 MHz |
| Program Memory Size | 256 KB (256K x 8) Flash |
| RAM Size | 64 KB (64K x 8) |
| Number of I/O | 142 |
| Tension d'alimentation | 3.3 V |
| Boîtier / Format | 256-MAPBGA (17x17 mm) |
| Type de montage | Surface Mount |
| Connectivity | CANbus, EBI/EMI, Ethernet, I²C, SPI, UART/USART |
| Peripherals | DMA, LVD, POR, PWM, WDT |
| Oscillator Type | External |
| Température de fonctionnement | -40C to +85C (industrial) |
| Temperature Grade | Industrial |
| Terminal Form | BALL |
| Number of Terminals | 256 |
| Package Code | LBGA |
| Package Shape | SQUARE |
| Niveau MSL | 3 |
| Part Status | Not For New Designs (NRND) |
Guide de configuration des broches du MCF5281CVM80 square
Configuration des broches du MCF5281CVM80 (boîtier square). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour MCF5281CVM80.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MCF5281CVM80 convient pour 6 applications: Industrial Ethernet Gateway / PLC, CAN-to-Ethernet Protocol Bridge, Building Automation Controller, Motor Control Front-End, Automotive Test and Diagnostics Equipment, Embedded Server Appliance.
Industrial Ethernet Gateway / PLC
The MCF5281CVM80's integrated 10/100 Ethernet MAC with DMA offload, combined with 256 KB flash and 64 KB SRAM, is well-suited to industrial Ethernet gateways that translate fieldbus protocols into TCP/IP. The 80 MHz ColdFire V2 core delivers enough compute to run a Modbus TCP or EtherNet/IP server stack while leaving cycles for deterministic control loops. The four DMA channels keep TCP/IP and CAN traffic from starving the CPU.
Recommandé
CAN-to-Ethernet Protocol Bridge
With both a CAN 2.0B controller and an Ethernet MAC on-chip, the MCF5281CVM80 acts as a transparent CAN-to-Ethernet bridge used in factory automation and automotive test equipment. The part can filter CAN frames in hardware and forward them via TCP or UDP without CPU intervention, reducing latency below 1 ms on a lightly loaded bus. The 142 user I/O pins are sufficient for status LEDs, isolated digital inputs, and CAN bus diagnostics.
Recommandé
Building Automation Controller
Building automation controllers using the MCF5281CVM80 benefit from its PWM timers, watchdog, and external bus interface for connecting to legacy parallel peripherals. The 64 KB SRAM holds BACnet/IP and KNX/IP messaging buffers; 256 KB flash is enough for the application plus the protocol stack. The industrial -40C to +85C operating range covers unheated equipment closets and rooftop enclosures.
Recommandé
Motor Control Front-End
The MCF5281CVM80's PWM timers and DMA make it usable as a motor-control front-end for low-to-mid power brushless DC and AC induction drives up to a few hundred watts. The 80 MHz core can execute field-oriented control (FOC) loops in under 10 µs when carefully coded. The CAN interface communicates with a higher-level PLC or industrial PC; the Ethernet MAC streams telemetry for remote monitoring.
Recommandé
Automotive Test and Diagnostics Equipment
Off-vehicle automotive test rigs frequently use the MCF5281CVM80 because of its integrated CAN, Ethernet, UART, SPI, and I²C in a single chip. The industrial temperature grade and on-chip watchdog support 24/7 diagnostic operation. Combined with the external bus interface, the MCU can also drive TFT-LCD panels and SD card storage for in-vehicle log capture.
Recommandé
Embedded Server Appliance
Compact embedded server appliances for protocol translation, edge data buffering, or remote terminal access can be built around the MCF5281CVM80. The Ethernet MAC plus the EBI/EMI bus allow connection of external SDRAM for packet buffers, while the 64 KB internal SRAM handles fast-path operations. The part also supports DMA offload so the ColdFire V2 core can serve a small embedded web interface without saturating the CPU.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MCF5281CVM80 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MCF5282CVM80 | MCF5280CVM80 | MCF5281CVM66 | MCF5214CVM66 |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 256-MAPBGA (17x17 mm) | 256-MAPBGA (17x17 mm) - same | 256-MAPBGA (17x17 mm) - same | 256-MAPBGA (17x17 mm) - same | 256-MAPBGA - same |
| Core | ColdFire V2 | ColdFire V2 | ColdFire V2 | ColdFire V2 | ColdFire V1 |
| Maximum Clock | 80 MHz | 80 MHz | 80 MHz | 66 MHz | 66 MHz |
| Flash Size | 256 KB | 512 KB | 0 KB (external boot only) | 256 KB | 256 KB |
| SRAM Size | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB |
| Ethernet MAC | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) | No |
| CAN Controller | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) |
Principaux différenciateurs
- Integrated Ethernet MAC plus CAN 2.0B on ColdFire V2 at 80 MHz (vs MCF5214CVM66)
- Drop-in 256-MAPBGA pinout across the MCF528x family (vs MCF5280CVM80)
- Higher core clock for protocol-stack headroom (vs MCF5281CVM66)
Notes de conception
The 256-MAPBGA package has a junction-to-ambient thermal resistance around 30 C/W with a standard JEDEC test board. At 80 MHz, typical core power dissipation is roughly 0.8 W, producing about a 24 C rise above ambient. For sealed enclosures without airflow, place thermal vias under the central ground balls to spread heat into the inner power plane. Forced-air cooling is rarely required at 80 MHz but is recommended above 85 C ambient.
Use a 4-layer PCB stack-up with continuous power and ground planes under the BGA. Place 100 nF X7R decoupling on every VDD/VSS ball pair, plus 10 µF bulk tantalum or ceramic near the external regulator input. Via-in-pad with filled and plated-over copper is strongly recommended for the center balls to avoid solder joint voids. Keep the external 25 MHz crystal traces short and guarded with a ground ring to meet Ethernet MAC timing.
Avoid leaving unused balls floating on the MAPBGA - tie them to ground through a zero-ohm resistor or a no-stencil pad. Do not mix the 3.3 V I/O supply with the 1.5 V internal core supply on the same regulator - separate LDOs are mandatory. The watchdog timer is enabled by default at reset; firmware must disable it within the first 1 ms or unexpected resets will occur in development boards. Always validate boot mode straps before connecting the JTAG emulator.
Informations de conformité
Lead-free confirmed per the NXP product page; RoHS and REACH status were not explicitly stated in the provided web data and are marked unknown. The part is industrial-grade (not AEC-Q100).
