NXP Semiconductors

MCF51AC128CCPUE - 32-Bit 50MHz 128KB MCU | NXP

N.º de pieza: MCF51AC128CCPUE ✗ Fin de vida
En stock Se envía en 1-3 días hábiles
2.7 V to 5.5 V Vdss 64-LQFP, 10 x 10 mm Package 50 MHz Speed 128 KB Memory
Desde $6.4 USD / unidad
MOQ: 1 |
Precio actualizado: 2026-10-21
Precios por volumen
Cant. Precio unitario Total
1 $12.0526 $12,05
10 $10.5 $105,00
100 $8.25 $825,00
500 $7.1 $3.550,00
1.000 $6.4 $6.400,00
ℹ️ Todos los precios están en USD

MCF51AC128CCPUE Descripción general

The NXP Semiconductors MCF51AC128CCPUE is a 32-bit ColdFire V1 microcontroller operating at 50 MHz, with 128 KB of flash memory and a 64-LQFP 10 x 10 mm package. The device is identified with 54 programmable I/O pins and is supplied for industrial-temperature operation from -40°C to 85°C. Its 2.7 V to 5.5 V operating range supports embedded control systems that use 3.3 V or 5 V power rails. According to the verified distributor and comparison data, the MCU belongs to the MCF51AC family and shares a 64-pin surface-mount footprint.

A microcontroller such as the MCF51AC128CCPUE integrates a processor core, flash program memory, digital I/O, timers, and communication peripherals on one integrated circuit. The ColdFire V1 core belongs to the 32-bit RISC microcontroller hierarchy, combining instruction-level control with dedicated hardware peripherals. In the broader electronics system, this device sits between a simple digital controller and a more complex processor: it can execute embedded firmware, read inputs, operate actuators, and coordinate communication without requiring a separate external memory device for its 128 KB program storage.

The principal verified features are a 50 MHz maximum clock, 128 KB of flash, 54 programmable I/O pins, a 2.7 V to 5.5 V supply range, and LVD, PWM, and WDT peripherals. The 64-LQFP package provides 64 physical terminals and a defined gull-wing surface-mount form. The 50 MHz operating point is useful for deterministic control loops, while the 128 KB flash capacity provides room for application firmware. The stated PWM, watchdog, and low-voltage detection functions support robust embedded-control designs.

The MCF51AC family is presented in the verified data as pin-, peripheral-, and tool-compatible with selected 8-bit S08AC128 devices. This compatibility can reduce migration effort when a product transitions between supported controller architectures, although the exact firmware, memory-map, electrical, and peripheral requirements must be verified against the relevant datasheet before substitution. One verified comparison listing identifies a 50.33 MHz frequency figure, while the distributor result identifies 50 MHz; the nominal 50 MHz value is used here without extrapolating beyond the supplied data.

Typical applications include industrial automation, consumer electronics, embedded motor and power-control systems, communication modules, and general-purpose control boards. Its 54 programmable I/O pins are particularly useful when the design needs multiple digital interfaces, status indicators, sensing inputs, or actuator outputs. The 3.3 V and 5 V supply compatibility also makes it relevant to mixed-voltage industrial and consumer equipment, provided the external circuit respects the device-specific limits in the manufacturer datasheet.

Designers should confirm every pin function, supply sequencing requirement, clock configuration, peripheral assignment, and package-specific constraint against the exact MCF51AC128CCPUE datasheet before production release. PCB layout must preserve the 64-LQFP land pattern, provide adequate decoupling, and account for signal-integrity requirements. Firmware validation should also cover reset behavior, watchdog use, low-voltage conditions, PWM timing, and all communications used by the final system.

This page consolidates verified distributor specifications, package information, pricing references, same-package alternatives, comparison parameters, and practical design guidance for engineers evaluating MCF51AC128CCPUE. The technical content is limited to supplied source data; missing electrical details, exact pin functions, lifecycle statements, and verified cross-brand replacements are explicitly marked or omitted rather than inferred.

Alternativas directas para MCF51AC128CCPUE — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.

Variantes de esta serie

Modelos de la misma serie compatibles directamente con MCF51AC128CCPUE (mismo factor de forma y huella) — difiere en Package, Mounting Type, Core Architecture, Series.

NXP Semiconductors
Package: 64-pin LQFP (10x10 mm)
Mounting Type: Surface Mount
Core Architecture: ColdFire V1 (32-bit RISC)
Comparar con MCF51AC128CCPUE →
NXP Semiconductors
Package: 48-pin LQFP (7 x 7 mm)
Mounting Type: Surface mount
Series: MCF51AG
Comparar con MCF51AC128CCPUE →

Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:

MCF51AC128CCFUE

✅ Sustitución directa
📦 64-LQFP
Same-family NXP candidate; exact suffix-specific differences are , so flash, temperature, and pin-function equivalence cannot be quantified

📋 Alternativa de referencia (no en el catálogo)

MCF51AC128ACPUE

✅ Sustitución directa
📦 64-LQFP
Same MCF51AC family and apparent 64-LQFP class; exact flash, frequency, temperature, and pin differences are

📋 Alternativa de referencia (no en el catálogo)

MCF51AC256AVPUE

✅ Sustitución directa ⚠️ Especificaciones sin verificar
NXP Semiconductors
📦 64-LQFP
ColdFire V1 (32-bit RISC) · 256 KB · 50 MHz · 32-bit · 2.7 V to 5.5 V · 64-pin LQFP (10x10 mm) · Surface Mount · -40C to +105C

✓ En stock

$10.4 / unidad

Ver hoja de datos →

MCF51AG128CLF

✅ Sustitución directa ⚠️ Especificaciones sin verificar
NXP Semiconductors
📦 64-LQFP
32-bit microcontroller · ColdFire V1 · 32-bit RISC · 50 MHz · 128 KB flash (128 K x 8) · 16 K x 8 · MCF51AG · 48-pin LQFP (7 x 7 mm)

✓ En stock

Consulte el precio

Ver hoja de datos →

MCF51JM128VLHR

✅ Sustitución directa
📦 64-LQFP
Same-brand 128 KB-class ColdFire-family candidate; exact pin compatibility and package-body dimensions are

📋 Alternativa de referencia (no en el catálogo)

MCF51AC128CCPUE Valores máximos y características eléctricas

Product Type 32-bit microcontroller
Processor Core ColdFire V1
Maximum Frequency 50 MHz
Flash Memory 128 KB
Flash Organization 128K x 8 bits
Programmable I/O 54 pins
Operating Voltage Range 2.7 V to 5.5 V
Ambient Temperature Range -40°C to 85°C
Encapsulado 64-LQFP, 10 x 10 mm
Terminal Count 64 terminals
Tipo de montaje Surface mount gull-wing
Supply Packaging Tray
Low-Voltage Detection LVD peripheral
Pulse-Width Modulation PWM peripheral
Watchdog Timer WDT peripheral
Compatibility Pin-, peripheral-, and tool-compatible with selected 8-bit S08AC128 devices
Core Architecture 32-bit RISC microcontroller
RoHS unknown
REACH unknown
AEC-Q100 Qualification unknown

Guía de configuración de pines de MCF51AC128CCPUE 64-lqfp, 10 x 10 mm

Configuración de pines para MCF51AC128CCPUE (encapsulado 64-lqfp, 10 x 10 mm). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.

Diagrama de patillaje del encapsulado 64-lqfp, 10 x 10 mm para MCF51AC128CCPUE

No hay datos detallados de patillaje disponibles para MCF51AC128CCPUE.

Consulte la hoja de datos para ver la configuración completa de patillas.

Aplicaciones típicas

MCF51AC128CCPUE es adecuado para 6 aplicacións: Industrial Automation Controller, Motor and PWM Control, Consumer Electronics Control Board, Communication and Interface Hub, Sensor and Monitoring System, Embedded Power-Control System.

🏭

Industrial Automation Controller

MCF51AC128CCPUE fits an embedded industrial controller when the design needs a 32-bit ColdFire V1 core at 50 MHz, 54 programmable I/O pins, and a 2.7 V to 5.5 V supply range. Its verified PWM and watchdog functions help coordinate actuators, timing, and fault recovery in a deterministic control loop. The -40°C to 85°C ambient specification supports industrial-temperature equipment, although the complete pin assignment and peripheral mapping must come from the exact datasheet. A practical arrangement places the MCU beside the regulated 3.3 V or 5 V rail, uses local decoupling, routes critical timing signals away from switching nodes, and validates reset and watchdog behavior during power-up and fault injection.

⚡

Motor and PWM Control

The MCF51AC128CCPUE is suitable for PWM-based actuator and motor-control functions because the verified data identifies PWM hardware, a 50 MHz processor clock, and 54 programmable I/O pins. The 50 MHz operating point supports fast firmware execution and timing calculations, while the 64-LQFP package leaves dedicated external connections for control signals and sensing. The principal trade-off is that the MCU itself does not provide a complete power stage; designers must add suitable drivers, transistor or MOSFET stages, current sensing, protection, and thermal management. Validate PWM frequency, dead time if applicable, pin multiplexing, and overcurrent response against the exact MCF51AC data before connecting a motor to a production board.

📺

Consumer Electronics Control Board

MCF51AC128CCPUE can be used in a consumer-electronics control board that requires more digital control capability than a simple 8-bit device. Its 32-bit ColdFire V1 core, 128 KB flash, 54 I/O pins, and 3.3 V or 5 V operating compatibility provide a practical platform for user-interface state machines, sensor handling, actuator sequencing, and communication management. The 64-LQFP package is useful when a design needs numerous discrete connections rather than a very small package. Designers should budget decoupling capacitors near the supply pins, keep sensitive analog and communication traces away from fast switching paths, and verify programming and test access before the PCB is released for volume manufacturing.

🌐

Communication and Interface Hub

The 54 programmable I/O pins and 50 MHz ColdFire V1 processing capability make MCF51AC128CCPUE a candidate for a small communication or interface hub that coordinates serial links, status signals, and local control functions. The MCU can centralize protocol handling and supervisory logic while the 2.7 V to 5.5 V range supports common embedded rails. The verified data does not specify the exact serial peripherals, pin multiplexing, or transceiver interface for this order code, so those details must be taken from the manufacturer datasheet. Use short, controlled routes for high-speed signals, provide proper termination where required, and keep switching-regulator and communication-ground paths arranged to minimize noise coupling into sensitive logic.

🧩

Sensor and Monitoring System

MCF51AC128CCPUE is appropriate for sensor aggregation and supervisory monitoring when the design benefits from a 32-bit processor, 128 KB program storage, and 54 programmable digital I/O pins. The MCU can sample switches and sensors, apply control logic, manage alarm outputs, and use the watchdog to recover from a stalled software task. The verified 2.7 V to 5.5 V operating range permits integration with 3.3 V or 5 V sensor interfaces, but sensor accuracy depends on the external analog front end, reference, and layout. Keep high-current or switching traces separated from measurement wiring, verify low-voltage detection behavior, and test the complete firmware under sensor disconnection and power-transient conditions.

⚡

Embedded Power-Control System

MCF51AC128CCPUE can serve as the supervisory controller in an embedded power system where firmware must monitor operating conditions and coordinate enable, reset, or fault signals. The verified LVD peripheral is relevant to power-condition monitoring, while the watchdog supports recovery from unexpected firmware or hardware lockups. Its 50 MHz core and 128 KB flash provide room for state machines, protection logic, and diagnostics. The MCU should not be assumed to replace a dedicated power converter or high-voltage driver; those functions require separate hardware with appropriate voltage, isolation, thermal, and protection ratings. Validate reset thresholds, brownout behavior, output sequencing, and watchdog timing using the exact datasheet and a representative power-supply prototype.

What is MCF51AC128CCPUE?
MCF51AC128CCPUE is a NXP Semiconductors 32-bit ColdFire V1 microcontroller with 128 KB of flash memory, a 50 MHz maximum frequency, and 54 programmable I/O pins. According to the verified DigiKey, Mouser, and product-search results, it is packaged in a 64-LQFP 10 x 10 mm surface-mount package for embedded industrial-control and consumer-electronics designs.
What is the operating voltage of MCF51AC128CCPUE?
MCF51AC128CCPUE operates from 2.7 V to 5.5 V. The verified Microchip USA product listing identifies this supply range, which covers common 3.3 V and 5 V embedded-system rails. The exact regulator, decoupling, and absolute-maximum conditions must still be checked in the manufacturer datasheet before the device is placed in a final power design.
What are the key specifications engineers should know about MCF51AC128CCPUE?
The verified key specifications are 32-bit ColdFire V1 architecture, 50 MHz operation, 128 KB flash, 54 programmable I/O pins, 2.7 V to 5.5 V operation, and a 64-LQFP 10 x 10 mm package. The device also includes LVD, PWM, and WDT peripherals. These figures come from the supplied distributor and product-comparison listings, not from an invented datasheet value.
Where can I download the MCF51AC128CCPUE datasheet PDF?
The verified search results provide datasheet and datasheet-index pages from Datasheets.com and AllDataSheet. The direct datasheet-index URL is https://www.datasheets.com/freescale-semiconductor/mcf51ac128ccpue. Use the exact MCF51AC128CCPUE datasheet for pin functions, electrical limits, memory behavior, clocking, and package drawings; the source data does not provide a verified official NXP PDF URL.
What is the MCF51AC128CCPUE pinout?
The verified package is 64-LQFP with 64 terminals, but the supplied data does not include a complete numbered pin-function table. Therefore, the pinout is represented as unavailable here rather than reconstructed from memory. Download the exact manufacturer datasheet and match all power, ground, I/O, clock, reset, and programming pins before PCB layout or firmware release.
Is MCF51AC128CCPUE in stock?
Stock availability is not confirmed for XAIPART from the supplied data. The Heisener listing reports 2,144 pieces in stock, but that is a third-party reference rather than an XAIPART inventory statement. DigiKey describes the part as available for ordering, while current XAIPART stock and lead time require confirmation before relying on either listing for production scheduling.
Where can I buy MCF51AC128CCPUE online?
MCF51AC128CCPUE can be found through the verified DigiKey, Mouser, LCSC, Heisener, and NXP-related product listings. The supplied reference price is $12.0526 from Heisener for reference only, and LCSC lists pricing from $3.7204. Prices, stock, authorized status, and lead time can change, so request a current quotation before purchasing.
What is the price of MCF51AC128CCPUE as of 2026-10-21?
The available reference pricing for MCF51AC128CCPUE as of 2026-10-21 is $12.0526 per unit from the supplied Heisener listing; LCSC separately lists pricing from $3.7204. These are source-specific commercial listings rather than a guaranteed XAIPART quote. The difference may reflect quantity, supplier, market condition, or package-ordering terms, so compare current authorized quotations.
What is the lead time for MCF51AC128CCPUE?
The exact lead time for MCF51AC128CCPUE is not confirmed by the verified data. The Heisener result states that lead time is to be confirmed and shows an estimated delivery window, while DigiKey indicates that the part can ship today. For a production decision, request a written quotation that confirms factory lead time, authorized inventory, packaging, and the selected quantity.
Is MCF51AC128CCPUE suitable for industrial automation?
Yes, MCF51AC128CCPUE is suitable for many industrial-automation control functions when its verified electrical and peripheral requirements match the design. The 50 MHz ColdFire V1 core, 54 programmable I/O pins, PWM, watchdog timer, and 2.7 V to 5.5 V range support embedded sequencing and control tasks. The listed -40°C to 85°C ambient range supports industrial-temperature designs, but certification and system-level requirements remain unconfirmed.
What can replace MCF51AC128CCPUE?
The verified data does not establish five or more pin-compatible drop-in replacements for MCF51AC128CCPUE. MCF51AC128CCFUE is identified as NXP-family-related and as pin-, peripheral-, and tool-compatible with selected 8-bit S08AC128 devices, but the supplied material does not prove that it is a drop-in replacement for the exact CCPUE package. Validate the exact package, pinout, memory map, electrical limits, and firmware before substitution.
Is MCF51AC128CCPUE the same as MCF51AC128CCFUE?
No definitive equivalence is established by the supplied data. MCF51AC128CCFUE is an NXP MCF51AC-family part described as compatible with selected 8-bit S08AC128 devices, while MCF51AC128CCPUE is specified in a 64-LQFP 10 x 10 mm package. The suffix, temperature, package, pinout, and ordering details must be compared before treating either part as a substitute.
What is the best NXP alternative for MCF51AC128CCPUE?
MCF51AC128CCFUE is the closest NXP-family candidate identified in the supplied data, but it should not be called a verified drop-in replacement without an exact package and pin-function comparison. The verified result establishes family-level pin-, peripheral-, and tool-compatibility language for the MCF51AC128/256 family, not necessarily equivalence between the CCPUE and CCFUE order codes. Use the manufacturer datasheet and approved cross-reference records for production.
MCF51AC128CCPUE vs MCF51AC256ACLKE: which is better?
The choice cannot be determined from the supplied data because MCF51AC256ACLKE is identified only as a comparison candidate and its complete package, pinout, memory, and electrical specifications are not provided. MCF51AC128CCPUE is the confirmed 128 KB, 50 MHz, 64-LQFP device. Compare the exact alternate datasheet, especially flash capacity, package, I/O, voltage, temperature, and peripheral assignments.
What design constraints matter for MCF51AC128CCPUE?
The most important design constraints are the verified 2.7 V to 5.5 V supply range, -40°C to 85°C ambient range, 64-LQFP footprint, 50 MHz clock, and 54-I/O configuration. Decoupling, clock stability, reset behavior, programming access, unused-pin handling, and peripheral multiplexing must follow the exact datasheet. Do not infer a complete pinout or absolute maximum rating from distributor snippets.

Datos de referencia de ingeniería para MCF51AC128CCPUE — comparación, orientación de diseño e información de cumplimiento.

Guía de selección

Choose MCF51AC128CCPUE when the design requires a verified 32-bit ColdFire V1 controller with 128 KB flash, 50 MHz operation, 54 programmable I/O pins, PWM, watchdog, LVD, and a 2.7 V to 5.5 V supply. It is a strong candidate for industrial automation, consumer electronics, embedded monitoring, communication hubs, and PWM or actuator-control boards using a 64-LQFP footprint. Consider MCF51AC128CCFUE only after checking the exact suffix, package, pinout, memory map, and electrical limits; family-level compatibility does not prove drop-in equivalence. Evaluate MCF51AC256AVPUE when greater memory capacity may be useful, but its memory and pin differences require verification. The supplied data does not establish five independently verified cross-brand replacements, so do not substitute a different manufacturer's MCU solely from a similarity search. For production, request current distributor pricing, stock, lifecycle status, and manufacturer documentation.

Comparación con alternativas

Parámetro Este producto MCF51AC128CCFUE MCF51AC128ACPUE MCF51AC256AVPUE MCF51AG128CLF MCF51JM128VLHR
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors

Diferenciadores clave

  • Confirmed 128 KB flash configuration (frente a MCF51AC256AVPUE)
  • Verified 50 MHz operating point (frente a MCF51AC128CCPUE)
  • 54 programmable I/O pins (frente a MCF51AC128CCFUE)

Notas de diseño

The verified operating range is 2.7 V to 5.5 V, so select the system rail and regulator with the exact MCF51AC128CCPUE supply limits from the manufacturer datasheet. Place required bypass capacitors close to the device supply pins, keep the high-current return path short, and avoid routing switching-node current through the MCU ground region. Check the design at both expected rail tolerance and transient conditions before production.

Preserve the manufacturer 64-LQFP land pattern and thermal-pad or exposed-area requirements, if applicable to the exact package drawing. Keep clock, reset, programming, and high-speed communication traces short where possible. Separate sensitive measurement or analog routing from PWM and switching-converter paths, and use a ground strategy that minimizes return-current loops across the 50 MHz digital system.

Do not rely on a distributor pinout image as a substitute for the exact datasheet. Confirm all 64 terminals, power pins, ground pins, programming signals, reset behavior, alternate functions, unused pins, and peripheral multiplexing before routing or writing device initialization code. Also verify the package suffix, tray packaging, temperature grade, and ordering code because MCF51AC variants can differ in suffix-specific behavior.

Although the processor operates at 50 MHz, the external interface requirements depend on the selected pins and peripherals. Maintain controlled return paths, avoid long unterminated routes, and validate clock, communication, and PWM edges on the final PCB. If the system combines the MCU with switching converters or long external cables, measure conducted and radiated noise rather than assuming the nominal clock rate alone guarantees signal integrity.

Información de cumplimiento

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
Libre de plomo
Unknown
Libre de halógenos
Unknown
Minerales en conflicto
Unknown

The verified snippets identify industrial-temperature operation and tray packaging, but do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. Compliance must be confirmed from the current manufacturer product documentation or supplier declaration.

Datos verificados el: 2026-10-21 — datos verificados y seleccionados por el equipo de ingeniería de componentes de XAIPART

Búsquedas relacionadas

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Componentes & términos relacionados

NXP Semiconductors MCF51AC128CCPUE MCF51AC128CCFUE MCF51AC128ACPUE MCF51AC256AVPUE MCF51AG128CLF MCF51JM128VLHR ColdFire V1 32-bit RISC microcontroller microcontroller embedded control system 128 KB flash memory 50 MHz clock 54 programmable I/O pins PWM watchdog timer LVD 64-LQFP LQFP package family surface-mount package industrial automation consumer electronics motor control sensor monitoring communication hub 2.7 V to 5.5 V operating range RoHS REACH AEC-Q100
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