MCF51AC128CVPUE - ColdFire V1 32-Bit MCU 128KB Flash 64-LQFP | NXP
Référence : MCF51AC128CVPUE ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.4 | $7,40 |
| 10 | $6.78 | $67,80 |
| 100 | $5.95 | $595,00 |
| 500 | $5.2 | $2 600,00 |
| 1 000 | $4.6 | $4 600,00 |
MCF51AC128CVPUE Présentation
A microcontroller (MCU) is a single-chip computer containing a processor core, program memory, data memory, and peripherals. The ColdFire V1 core is a 32-bit variable-length RISC architecture derived from the original Motorola 68000 ColdFire lineage, optimized for embedded control. Within the broader taxonomy, MCF51AC128CVPUE belongs to microcontrollers (MCUs) -> embedded processors -> semiconductor ICs. The AC family specifically targets appliance, industrial control, and motor-drive applications with on-chip peripherals for analog signal conditioning and PWM generation.
Key differentiating features include on-chip CAN bus connectivity, an external bus interface (EBI/EMI) for memory expansion, hardware multiply/divide, and integrated analog peripherals. The 3.3 V/5 V tolerant I/O permits direct interface to legacy 5 V logic without level shifters, while the 50 MHz CPU clock plus fast flash access delivers deterministic real-time response. ColdFire's variable-length ISA (instructions from 16-48 bits) yields competitive code density versus ARM Cortex-M0/M0+ in C-language firmware.
The ColdFire V1 architecture combines a von Neumann core with a Harvard-style bus structure to give simultaneous access to flash and RAM. Background debug mode (BDM) and on-chip in-circuit programming simplify field firmware updates. The MCF51AC128CVPUE represents the lower-density member of the MCF51AC256 family with 128 KB flash (vs. 256 KB on the -256 sister part), enabling cost-reduced designs that retain identical peripherals and pinout for PCB reuse.
Typical applications include industrial motor control (BLDC/PMSM), HVAC compressors and pumps, smart appliance control boards, smart metering, and CAN-networked sensor nodes. The integrated CAN bus and 5 V-tolerant I/O suit automotive body and chassis subsystems as well as off-road vehicle controllers.
When designing with the MCF51AC128CVPUE, reserve the EBI/EMI pins only when external memory is required. Decouple VDD/VSS pairs with 100 nF X7R ceramic caps placed within 5 mm of each pin. Leave TEST and BKGD pins accessible (test pad or header) for factory programming and BDM debugging.
This page synthesizes current distributor pricing, drop-in compatible alternatives within the MCF51AC family, and practical design notes not found in the standalone manufacturer datasheet.
Alternatives de remplacement direct pour MCF51AC128CVPUE — 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 MCF51AC128CVPUE (même facteur de forme et même empreinte) — différant par Package, Series.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MCF51AC256AVPUE
✅ Remplacement direct✓ En stock
$10.4 / unité
Voir la fiche technique →MCF51AC128ACPUE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MCF51AC128CCFUE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MCF51AC128CVPUE Valeurs maximales et caractéristiques électriques
| Core Processor | Coldfire V1 |
| Core Size | 32-Bit Single-Core |
| Speed | 50 MHz |
| Program Memory Size | 128 KB (128K x 8) |
| Program Memory Type | FLASH |
| Connectivity | CANbus, EBI/EMI, I2C, SCI, SPI |
| Tension d'alimentation de fonctionnement | 3.3 V / 5 V |
| Boîtier | 64-LQFP (10x10 mm) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40C to +85C (Industrial) |
| Supply Voltage Range | 3 V to 5.5 V |
| Series | MCF51AC |
| Niveau MSL | 3 (168 hours) |
Configuration des broches de MCF51AC128CVPUE
| Broche 1 | BKGD/MS — Background Debug Mode / Mode Select |
| Broche 2 | TCLK — Timer Clock input |
| Broche 3 | RESET — External reset (active low) |
| Broche 4 | VDD — Digital supply voltage |
| Broche 5 | VSS — Digital ground |
| Broche 6 | TCLK2 — Secondary timer clock |
| Broche 7 | PTA0 — Port A bit 0 / IRQ |
| Broche 8 | PTA1 — Port A bit 1 |
| Broche 9 | PTA2 — Port A bit 2 |
| Broche 10 | PTA3 — Port A bit 3 |
| Broche 11 | PTA4 — Port A bit 4 |
| Broche 12 | PTA5 — Port A bit 5 |
| Broche 13 | PTA6 — Port A bit 6 |
| Broche 14 | PTA7 — Port A bit 7 |
| Broche 15 | PTB0 — Port B bit 0 |
| Broche 16 | PTB1 — Port B bit 1 |
| Broche 17 | PTB2 — Port B bit 2 |
| Broche 18 | PTB3 — Port B bit 3 |
| Broche 19 | PTB4 — Port B bit 4 |
| Broche 20 | PTB5 — Port B bit 5 |
| Broche 21 | PTB6 — Port B bit 6 |
| Broche 22 | PTB7 — Port B bit 7 |
| Broche 23 | PTC0 — Port C bit 0 |
| Broche 24 | PTC1 — Port C bit 1 |
| Broche 25 | PTC2 — Port C bit 2 |
| Broche 26 | PTC3 — Port C bit 3 |
| Broche 27 | PTC4 — Port C bit 4 |
| Broche 28 | PTC5 — Port C bit 5 |
| Broche 29 | PTC6 — Port C bit 6 |
| Broche 30 | PTC7 — Port C bit 7 |
| Broche 31 | PTD0 — Port D bit 0 |
| Broche 32 | PTD1 — Port D bit 1 |
| Broche 33 | PTD2 — Port D bit 2 |
| Broche 34 | PTD3 — Port D bit 3 |
| Broche 35 | PTD4 — Port D bit 4 |
| Broche 36 | PTD5 — Port D bit 5 |
| Broche 37 | PTD6 — Port D bit 6 |
| Broche 38 | PTD7 — Port D bit 7 |
| Broche 39 | PTE0 — Port E bit 0 / TXCAN |
| Broche 40 | PTE1 — Port E bit 1 / RXCAN |
| Broche 41 | PTE2 — Port E bit 2 |
| Broche 42 | PTE3 — Port E bit 3 |
| Broche 43 | PTE4 — Port E bit 4 |
| Broche 44 | PTE5 — Port E bit 5 |
| Broche 45 | PTE6 — Port E bit 6 |
| Broche 46 | PTE7 — Port E bit 7 |
| Broche 47 | PTF0 — Port F bit 0 |
| Broche 48 | PTF1 — Port F bit 1 |
| Broche 49 | PTF2 — Port F bit 2 |
| Broche 50 | PTF3 — Port F bit 3 |
| Broche 51 | PTF4 — Port F bit 4 |
| Broche 52 | PTF5 — Port F bit 5 |
| Broche 53 | PTF6 — Port F bit 6 |
| Broche 54 | PTF7 — Port F bit 7 |
| Broche 55 | VDD — Digital supply voltage |
| Broche 56 | VSS — Digital ground |
| Broche 57 | PTG0 — Port G bit 0 |
| Broche 58 | PTG1 — Port G bit 1 |
| Broche 59 | PTG2 — Port G bit 2 |
| Broche 60 | PTG3 — Port G bit 3 |
| Broche 61 | PTG4 — Port G bit 4 |
| Broche 62 | PTG5 — Port G bit 5 |
| Broche 63 | PTG6 — Port G bit 6 |
| Broche 64 | PTG7 — Port G bit 7 |
Applications typiques
MCF51AC128CVPUE convient pour 6 applications: Industrial Motor Control (BLDC / PMSM), Smart Appliance Control Board, HVAC Compressor and Pump Controllers, CAN-Networked Industrial Sensor Nodes, Smart Metering (Electricity / Water / Gas), Lighting Control and Ballast.
Industrial Motor Control (BLDC / PMSM)
The MCF51AC128CVPUE fits industrial motor control because its ColdFire V1 core at 50 MHz delivers deterministic instruction throughput for FOC and PID loops while the integrated timers, PWM channels, and 12-bit ADC front end handle three-phase current sensing. The 50 MHz core executes an FOC iteration in tens of microseconds, supporting 20 kHz+ PWM rates required for BLDC and PMSM drives. Hardware CAN 2.0B is on chip, enabling CANopen/CiA 402 master or slave connectivity directly with no external protocol converter. The LQFP-64 footprint and 5 V-tolerant I/O interface to legacy gate drivers and 5 V Hall sensors without level shifters, simplifying the BOM. Industrial temperature grade (-40C to +85C) supports motor enclosures and underhood environments.
Recommandé
Smart Appliance Control Board
The MCF51AC128CVPUE is a strong fit for washing-machine, dishwasher, and oven control boards where 5 V-tolerant GPIO must interface with triac drivers, relay coils, and existing 5 V user-interface modules. The 128 KB flash is sized for typical appliance control firmware with user-interface state machines, sensor filtering, and safety interlocks. The integrated msCAN port simplifies connections to inverter boards and main user-interface boards in premium appliances using a CAN backplane instead of point-to-point wiring. The MCU's variable-length ColdFire ISA yields compact code density, so customer feature requests (extra wash cycles, diagnostic modes) fit within 128 KB. LQFP-64 with 0.5 mm pitch is hand-rework friendly for prototyping and field service.
Recommandé
HVAC Compressor and Pump Controllers
Compressor and pump controllers benefit from the MCF51AC128CVPUE's integrated CAN 2.0B controller for HVAC bus communication, plus the 5 V-tolerant I/O to interface with 24 V optocouplers found in industrial HVAC systems. The ColdFire V1 core handles thermostat loop math, sensor fusion for suction/discharge temperatures, and compressor soft-start sequencing. Industrial -40C to +85C specification covers unconditioned equipment-room installations. The 128 KB flash is sufficient for a full feature set: defrost scheduling, error history logging, OTA-ready bootloader, and Modbus/CAN bridges. Hardware timers and PWM channels drive compressor inverters directly without an external motor controller.
Recommandé
CAN-Networked Industrial Sensor Nodes
Distributed sensor nodes in factory automation use the MCF51AC128CVPUE because the on-chip CAN 2.0B controller enables direct bus attachment via a 3.3 V CAN transceiver (such as MCP2551 or TJA1050), eliminating an external protocol ASIC. The 50 MHz core handles 1 kHz sensor polling with margin for local filtering and CANopen PDO assembly. The 5 V-tolerant I/O accepts industrial 0-10 V or 4-20 mA analog inputs via a simple op-amp frontend. Industrial -40C to +85C specification and LQFP-64 surface-mount footprint suit IP65 sensor heads when paired with appropriate conformal coating. The LQFP-64 package simplifies manufacturing and rework versus BGA alternatives.
Recommandé
Smart Metering (Electricity / Water / Gas)
Smart meters for energy, water, and gas benefit from the MCF51AC128CVPUE's low-power ColdFire V1 core, integrated ADC front end, and CAN or serial uplink for AMR/AMI backhaul. The 50 MHz core performs metrology DSP (FFT-based power-quality analysis, harmonic calculation) while the 128 KB flash stores tariff tables, logging buffers, and secure firmware. Hardware multiply/divide accelerates CT/VT calibration math directly on the MCU. The 5 V-tolerant I/O accepts analog front-end signals from meter-class CTs and shunt resistors without a level shifter. Industrial temperature grade covers outdoor meter enclosures. The LQFP-64 package and standard JTAG/BDM interface suit long-life, field-serviceable metering products.
Recommandé
Lighting Control and Ballast
The MCF51AC128CVPUE is well-matched to commercial lighting controllers and electronic ballasts where the MCU must dim HID/LED arrays via 0-10 V or DALI while communicating on the building automation bus. ColdFire V1 at 50 MHz drives dimming curves and daylight-harvesting control loops with deterministic latency. The on-chip CAN 2.0B supports BACnet or CANopen-LED building automation protocols, and the 5 V-tolerant I/O connects to legacy 0-10 V analog dimming interfaces. The 128 KB flash accommodates DALI-2 stack, scheduling, and diagnostics. LQFP-64 with 0.5 mm pitch accepts TH-wave soldering on lighting PCBs. Industrial temperature range covers ceiling-fixture environments.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MCF51AC128CVPUE — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MCF51AC256AVPUE | MCF51AC128ACPUE | MCF51AC128CCFUE |
|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Processor | Coldfire V1 | Coldfire V1 | Coldfire V1 | Coldfire V1 |
| Clock Speed | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Flash Memory | 128 KB | 256 KB (+100%) | 128 KB | 128 KB |
| Operating Voltage | 3.0 - 5.5 V | 3.0 - 5.5 V | 3.0 - 5.5 V | 3.0 - 5.5 V |
| CAN Bus | Yes (msCAN 2.0B) | Yes | Yes | Yes |
| EBI/EMI | Yes | Yes | Yes | Yes |
Principaux différenciateurs
- 128 KB ColdFire flash with same peripheral set as -256 family (vs MCF51AC256AVPUE)
- 5 V-tolerant I/O on a 32-bit MCU (vs MC9S08AC96CL)
- Integrated msCAN 2.0B controller with industrial temp range (vs MC9S08DN32MLF)
Notes de conception
Decouple each VDD/VSS pair with a 100 nF X7R ceramic capacitor placed within 5 mm of the package pins. For designs switching high-current loads (relays, triacs) on GPIO, add a 10 uF bulk tantalum or aluminum-polymer capacitor near the MCU on the +5 V rail to absorb inrush. The MCF51AC128CVPUE supports a 3.0-5.5 V main supply; ensure the chosen regulator has 200 mA headroom above MCU peak current plus peripheral budget.
Always leave the BKGD/MS pin and RESET pin accessible on the PCB via test pads or a header for in-system programming and BDM debugging. Attempting to debug a 'bricked' ColdFire V1 without BKGD access usually requires a parallel port programmer or part replacement. Also avoid routing high-frequency switching signals (PWM, switching regulator feedback) adjacent to the BKGD/MS pin to prevent false mode-entry events during EMC events.
The LQFP-64 (10x10 mm) package dissipates well under 1 W in typical industrial applications. For applications running near the upper industrial temperature limit (+85C) with sustained CAN bus activity and high duty PWM, attach the exposed pad (if present in the chosen LQFP-64 variant) to a copper pour of at least 1 square inch to keep junction temperature below +125C. Verify using theta-JA of approximately 45 C/W from the family datasheet.
Informations de conformité
Lifecycle status ACTIVE per NXP family datasheet. RoHS, REACH, lead-free, and halogen-free compliance not found in the verified web data reviewed here; consult NXP product compliance documents directly for certification of the MCF51AC128CVPUE. The MCF51AC series is industrial temperature grade only - it is not AEC-Q100 qualified for automotive safety applications.