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NXP Semiconductors

MCF51CN128CL - 32-Bit 50MHz 128KB Flash MCU | NXP

Артикул: MCF51CN128CL ✗ Снят с производства
В наличии Отправка в течение 1–3 рабочих дней
64-LQFP (10 mm x 10 mm) Package 50 MHz Speed 128 KB Memory
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MOQ: 1 |
Цена обновлена: 2026-10-20
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MCF51CN128CL Обзор

The NXP Semiconductors MCF51CN128CL is a 32-bit ColdFire V1 microcontroller operating at 50 MHz, with 128 KB of flash memory and a 64-LQFP package identified as 10 mm by 10 mm in the verified distributor data. It is designed for embedded applications requiring a compact 32-bit control platform, Ethernet connectivity, and external peripheral interfaces. The verified listing describes a 10/100 BASE-T/TX fast Ethernet controller with an MII interface for an external Ethernet PHY and a multi-function external bus interface.

A microcontroller is an integrated circuit containing a processor core, nonvolatile program memory, data memory, peripherals, and input/output interfaces in one device. The MCF51CN128 belongs to the ColdFire microcontroller family and is positioned between a general-purpose MCU and more specialized network-control devices. Its Ethernet controller makes it relevant to industrial networking, embedded gateways, control panels, and communication equipment, provided the complete electrical and software requirements remain satisfied.

The verified information identifies a 50 MHz ColdFire V1 core, 128 KB flash memory, 32-bit architecture, 10/100 BASE-T/TX fast Ethernet capability, MII connectivity, and a multi-function external bus interface. The package information is listed as 64-LQFP, 10 mm by 10 mm. Other electrical details, RAM size, pin-level assignments, operating voltage, temperature range, and peripheral inventory were not provided in the verified data and therefore require confirmation from the manufacturer datasheet before design release.

The Ethernet block uses an MII interface to connect to an external physical-layer transceiver. Designers should account for the external PHY, magnetics, clocking, termination, isolation, and signal-integrity requirements of the Ethernet implementation. The multi-function external bus provides a route for additional peripherals, but the supported operating modes and electrical timing must be taken directly from the MCF51CN128 datasheet.

Typical application areas include industrial Ethernet controllers, embedded network management equipment, data acquisition systems, and connected industrial products. For each use case, confirm the required memory map, I/O availability, bus timing, supply voltage, and software support. The MCF51CN128CL is specifically associated with an end-of-life overview in the verified NXP product result, so sourcing and lifecycle planning should account for the device's current availability.

This product record consolidates the verified NXP datasheet link, distributor package and memory information, and the available product-page context into a practical procurement reference. For a new PCB, use the official datasheet as the controlling document rather than relying on abbreviated distributor descriptions.

Аналоги без доработки для MCF51CN128CL — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

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MCF51CN128CL Максимальные параметры и электрические характеристики

Architecture 32-bit
Core ColdFire V1
Максимальная тактовая частота 50 MHz
Flash Memory 128 KB
Flash Organization 128K x 8
Ethernet Controller 10/100 BASE-T/TX fast Ethernet controller
Ethernet Physical Interface Media Independent Interface (MII)
External Interface Multi-function external bus interface
Корпус 64-LQFP (10 mm x 10 mm)
Manufacturer NXP Semiconductors
Product Family MCF51CN
Статус жизненного цикла End of Life
Datasheet Format PDF
Data Sheet Page Count 42 pages
Data Sheet File Size 958 Kbytes

Руководство по цоколевке MCF51CN128CL в корпусе 64-lqfp (10 mm x 10 mm)

Цоколевка для MCF51CN128CL (корпус 64-lqfp (10 mm x 10 mm)). Эта цифровая ИС включает выводы GPIO, интерфейсы связи (UART, SPI, I2C) и выводы питания. Обратитесь к техническому описанию производителя для альтернативных функций выводов и вариантов конфигурации. Необходимо для проектирования встраиваемых систем и трассировки печатных плат.

Схема цоколевки корпуса 64-lqfp (10 mm x 10 mm) для MCF51CN128CL

Нет подробных данных о распиновке для MCF51CN128CL.

Обратитесь к даташиту для полной конфигурации выводов.

Типичное применение

MCF51CN128CL подходит для 6 применениеs: Industrial Ethernet Controller, Embedded Network Gateway, Data Acquisition and Control, Connected Industrial Equipment, Communication Equipment, Networked Test and Measurement Instrument.

🌐

Industrial Ethernet Controller

The MCF51CN128CL is a rational fit for industrial Ethernet control equipment because the verified device specification identifies a 10/100 BASE-T/TX fast Ethernet controller, an MII interface, and a 32-bit ColdFire V1 core operating up to 50 MHz. The MCU can manage protocol and supervisory tasks while an external PHY handles the physical network layer. A practical design should reserve the MII routing for short, controlled signal paths and follow the NXP and PHY reference guidance. Because the verified excerpts do not state operating temperature, supply voltage, or lifecycle guarantees, industrial qualification and long-term sourcing must be checked before production.

🌐

Embedded Network Gateway

The MCF51CN128CL can serve as the control processor in an embedded network gateway when the design needs local Ethernet connectivity and a 32-bit embedded architecture. Its verified 50 MHz ColdFire V1 core and 128 KB flash provide a defined platform for network management, protocol handling, and supervisory logic. The MII interface requires an external PHY, so the complete gateway design must include suitable magnetics, clocking, isolation or protection as required, and controlled board layout. Confirm RAM, I/O availability, operating limits, and software support from the official datasheet before fixing the architecture.

🏭

Data Acquisition and Control

For data-acquisition equipment, the MCF51CN128CL offers a 32-bit ColdFire V1 processing platform at 50 MHz with 128 KB flash and a multi-function external bus. That combination can support local control loops, data formatting, status monitoring, and communication tasks when the exact peripheral and I/O requirements are confirmed. The external bus may be used to connect additional functions, but its electrical timing and supported modes must be taken from the official NXP documentation. The verified data does not specify ADC performance, RAM, timers, or operating temperature, so this part should not be selected for precision analog performance without further review.

🏭

Connected Industrial Equipment

MCF51CN128CL is applicable to connected industrial equipment that needs Ethernet communications and deterministic embedded control in a compact 64-LQFP 10 mm x 10 mm package. The verified 32-bit ColdFire V1 core at 50 MHz can handle network-related control software, while the multi-function external bus provides a path for system integration. In a real product, the Ethernet PHY, magnetics, isolation, and power design may dominate board-level complexity. Validate industrial temperature, EMC, ESD, and lifecycle requirements separately because these attributes are not established by the supplied distributor snippets.

🌐

Communication Equipment

The verified 10/100 BASE-T/TX Ethernet capability makes MCF51CN128CL relevant to communication equipment that needs an embedded network interface alongside application-level control. The 32-bit ColdFire V1 core operating at 50 MHz can support protocol processing and supervisory tasks, while the 128 KB flash provides the specified nonvolatile program-memory capacity. The MII architecture means the MCU is not a standalone Ethernet solution; the external PHY and network magnetics must be selected and placed carefully. Confirm memory requirements beyond flash, baud-rate or protocol support, and operating conditions against the official datasheet.

🖥️

Networked Test and Measurement Instrument

The MCF51CN128CL may be used in networked test or measurement equipment when the instrument needs a 32-bit control processor and Ethernet connectivity. Its verified 50 MHz ColdFire V1 core, 128 KB flash, MII interface, and external bus provide a starting point for supervisory control, logging, and instrument communication. The component's suitability still depends on analog interfaces, precision timing, RAM, operating temperature, and calibration requirements that are not specified in the supplied data. Use the official datasheet to verify those resources and then validate EMC and network performance at system level.

What is the NXP MCF51CN128CL?
The NXP MCF51CN128CL is a 32-bit ColdFire V1 microcontroller rated at 50 MHz with 128 KB of flash memory. According to the verified NXP product and distributor information, it includes a 10/100 BASE-T/TX fast Ethernet controller, an MII interface for an external PHY, and a multi-function external bus interface. It is packaged in a 64-LQFP, 10 mm x 10 mm package. The verified NXP result also indicates an End of Life overview, so procurement should confirm current supply.
Where can I download the MCF51CN128 datasheet PDF?
The manufacturer datasheet is available from NXP at https://www.nxp.com/docs/en/data-sheet/MCF51CN128.pdf. The verified search result identifies the MCF51CN128 family and reports a 42-page PDF. Use the official NXP document for pin assignments, electrical limits, memory details, Ethernet timing, and package drawings. The distributor and third-party pages are useful for discovery, but the manufacturer PDF should control engineering decisions.
What is the pinout for MCF51CN128CL?
The verified data identifies the package as 64-LQFP, 10 mm x 10 mm, but it does not include the individual pin names or numbering. Consequently, a complete pinout cannot be published from the supplied evidence without risking an incorrect board layout. Use the official NXP MCF51CN128 datasheet pin table and package drawing before assigning signals, power, grounds, MII connections, or external-bus signals. Do not infer pin functions from the package name alone.
What are the key specifications engineers should know about MCF51CN128CL?
The verified specifications identify a 32-bit ColdFire V1 core, 50 MHz maximum clock frequency, 128 KB of 128K x 8 flash memory, a 10/100 BASE-T/TX fast Ethernet controller, an MII interface, a multi-function external bus interface, and a 64-LQFP 10 mm x 10 mm package. The datasheet-linked family information is the appropriate source for unlisted RAM, voltage, temperature, and detailed peripheral values. These verified parameters make the part relevant to compact Ethernet-enabled embedded systems.
Does MCF51CN128CL support Ethernet?
Yes. The verified MCF51CN128CL description specifies a 10/100 BASE-T/TX fast Ethernet controller. Its MII interface connects the controller to an external Ethernet physical-layer transceiver. The MCU therefore provides the digital Ethernet controller function, while a suitable external PHY and the required network magnetics or other board-level network circuitry must be designed around it. The exact MII timing, signal mapping, and PHY requirements should be taken from the official NXP datasheet.
Is MCF51CN128CL suitable for industrial applications?
It can be suitable for industrial applications that need a 32-bit embedded controller and Ethernet connectivity, but suitability depends on the complete electrical, environmental, and lifecycle requirements. The verified data confirms the ColdFire V1 core, 50 MHz operation, 128 KB flash, Ethernet controller, MII interface, and 64-LQFP package. It does not confirm operating temperature, supply voltage, industrial qualification, or AEC-Q100 status, so those items must be verified before release to an industrial or automotive environment.
Is MCF51CN128CL in stock?
Stock status cannot be confirmed from the supplied verified results. The DigiPart result provides a price-and-stock lookup page, while the Octopart result says it can compare availability across two distributors, but neither excerpt explicitly states that MCF51CN128CL is in stock. Because the available information is not an explicit inventory statement, treat stock as unknown and check current authorized-distributor or authorized-supplier inventory before committing an AVL or production schedule.
What is the price of MCF51CN128CL?
A numeric current price for MCF51CN128CL is not included in the verified data. The DigiPart and Octopart pages are identified as pricing and availability lookup sources, but their excerpts do not provide a usable price amount. The quantity tiers therefore remain unpriced rather than presenting invented figures. Request a quotation from an authorized distributor or use the live price and stock lookup pages, and record the quote date for production planning.
What is the lead time for MCF51CN128CL?
The verified data does not provide a lead-time value for MCF51CN128CL. The NXP product result identifies an End of Life overview, and the distributor results are lookup pages without a confirmed inventory quantity or delivery commitment. Treat lead time as unknown until a supplier confirms allocation, factory shipment timing, and stock status. Because this is an end-of-life family context, long-term production planning should include an approved alternative or redesign assessment rather than relying on an unverified lead-time estimate.
Where can I buy MCF51CN128CL online?
The verified search results identify DigiKey, DigiPart, Octopart, and NXP-related sourcing pages for MCF51CN128CL or its family. For procurement, use an authorized NXP distributor or a distributor channel that can provide traceable sourcing, current stock, and lot or date-code information. The verified excerpts do not confirm live availability, authorized status, or a guaranteed shipment, so compare current listings before ordering. The NXP product page is also useful for lifecycle and buy-option information.
What is the best drop-in replacement for MCF51CN128CL?
No verified drop-in replacement was identified in the supplied cross-reference results. The results point to generic cross-reference tools and a DigiKey Marketplace listing, but they do not establish a candidate with the same package, pin compatibility, memory organization, Ethernet function, and timing requirements. Therefore, MCF51CN128CL cannot be responsibly presented with five or more verified drop-in alternatives from the available evidence. Use the official NXP migration or lifecycle information and validate any replacement against the complete datasheet.
Can MCF51CN128CL be replaced by MCF51CN128CLK?
The verified data lists MCF51CN128CLK as a related Mouser result, but it does not provide the target package, pinout, electrical limits, temperature range, or lifecycle data needed to establish pin-to-pin compatibility. The suffix difference alone is not enough to approve a drop-in replacement. Compare the official datasheets and package drawings for both exact orderable MPNs, then confirm memory, Ethernet, supply, clock, and peripheral requirements before substituting. A same-family relationship does not automatically mean drop-in compatibility.
Is MCF51CN128CL the same as MCF51CN128CLH?
They are not established as identical by the verified excerpts. DigiKey lists MCF51CN128CLH as a 32-bit, 50 MHz, 128 KB Flash ColdFire V1 MCU in a 64-LQFP 10 mm x 10 mm package, which is close to the target family description. However, the supplied data does not provide a complete pin-for-pin comparison or exact electrical comparison for the two orderable suffixes. Check the NXP ordering information and package suffixes before treating them as interchangeable.
When should I choose MCF51CN128CL instead of a different ColdFire MCU?
Choose MCF51CN128CL when the design specifically requires a verified 32-bit ColdFire V1 MCU at 50 MHz with 128 KB flash, an Ethernet controller, an MII interface, a multi-function external bus, and the identified 64-LQFP package. Choose another MCU if the application needs a different core, memory size, package, supply range, temperature rating, peripheral set, or lifecycle path. Because this family is associated with an End of Life overview, compare availability and migration requirements before starting a long-life design.
What design considerations apply to MCF51CN128CL Ethernet hardware?
The verified architecture indicates that MCF51CN128CL uses an MII interface with an external Ethernet PHY. The PCB must therefore support the power, clock, signal-integrity, termination, and layout requirements of that external device and the associated network interface. Keep the MII routing controlled and follow the official NXP and PHY reference designs where available. Do not treat the MCU as a complete Ethernet physical layer, and verify all pin assignments and timing against the manufacturer datasheet.
What compliance information is available for MCF51CN128CL?
RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status are not stated in the verified data for MCF51CN128CL. The available NXP and distributor excerpts describe the device and sourcing information but do not provide those compliance declarations. Treat every compliance field as unknown until supported by current NXP documentation or a supplier certificate. This is especially important for industrial, automotive, and export-controlled designs where compliance evidence may be required.
Is MCF51CN128CL suitable for a new long-life product?
A new long-life product requires caution because the verified NXP result explicitly refers to an End of Life overview for the MCF51CN128CLK family listing, while the supplied results do not establish the exact lifecycle status of every MCF51CN128CL orderable variant. Confirm the exact MPN status with NXP, obtain lifecycle and change-notification information, and evaluate a supported successor or redesign. The target's Ethernet controller and 32-bit ColdFire architecture may still be useful, but lifecycle risk should be treated as a design gate.

Справочные инженерные данные для MCF51CN128CL — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose MCF51CN128CL when your design specifically requires the verified combination of a 32-bit ColdFire V1 core, 50 MHz operation, 128 KB flash, 10/100 BASE-T/TX fast Ethernet control, MIF connectivity, and a 64-LQFP 10 mm x 10 mm package. It is a strong starting point for embedded Ethernet controllers, network gateways, connected industrial equipment, communication products, and networked instruments, provided the external PHY and network circuitry are designed correctly. Before committing, verify RAM, I/O, voltage, temperature, timing, software support, and exact pin assignments from the NXP datasheet. Because the related family listing is associated with an End of Life overview, use lifecycle confirmation and a migration plan for new long-life production. No verified drop-in alternatives were supplied, so do not substitute a similar suffix without a complete engineering comparison.

Сравнение с аналогами

Параметр Этот товар
Package 64-LQFP (10 mm x 10 mm)
Brand NXP Semiconductors
Architecture 32-bit
Core ColdFire V1
Maximum Clock Frequency 50 MHz
Flash Memory 128 KB (128K x 8)
Ethernet 10/100 BASE-T/TX fast Ethernet controller
External Interface Media Independent Interface (MII) and multi-function external bus
Lifecycle Status End of Life overview identified for related family listing
Price Not numerically provided

Ключевые отличия

  • Verified Ethernet integration (против No verified drop-in alternative in the supplied evidence)
  • 32-bit ColdFire control platform (против No verified drop-in alternative in the supplied evidence)
  • Specific package and sourcing context (против MCF51CN128CLH or MCF51CN128CLK)

Заметки по проектированию

Treat the MCF51CN128CL Ethernet implementation as an MII-based external-PHY design. Place the MCU and PHY according to the NXP and PHY reference guidance, keep MII traces short and controlled, provide a continuous ground reference, and avoid unnecessary stubs. The verified data confirms the MII interface but does not specify signal timing, so the official datasheet and selected PHY documentation are required before releasing the layout.

Before power-supply design, obtain the MCF51CN128CL operating-voltage and current limits from the official datasheet. The supplied evidence confirms a 32-bit, 50 MHz MCU with Ethernet and external-bus capability but does not provide supply values. Do not infer supply requirements from the package or core frequency. Validate the complete rail plan against MCU, PHY, magnetics, and external-bus loading, including startup and maximum operating conditions.

Do not substitute a related MCF51CN128 suffix based only on family naming. MCF51CN128CLH and MCF51CN128CLK appear in the verified search results, but the supplied evidence does not prove that either exact orderable device is pin-to-pin, electrically equivalent, or lifecycle-equivalent to MCF51CN128CL. Compare the official ordering table, package drawing, pin table, electrical characteristics, and lifecycle notices before approving a replacement.

Plan the board around the verified 64-LQFP, 10 mm x 10 mm package only after checking the official package drawing for pin numbering, pad dimensions, exposed thermal features if any, and recommended land pattern. The supplied data does not include a pinout or package drawing details. Preserve access to all power, ground, reset, clock, MII, and external-bus signals, and verify the land pattern against the manufacturer document rather than relying on a generic LQFP drawing.

Информация о соответствии

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
Без свинца
Unknown
Без галогенов
Unknown
Конфликтные минералы
Unknown

Compliance declarations were not present in the supplied verified product and distributor excerpts. Obtain current NXP or authorized-supplier documentation before making a compliance claim.

Данные проверены: 2026-10-21 — данные проверены и курируются командой компонентной инженерии XAIPART

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Связанные компоненты & термины

NXP Semiconductors MCF51CN128CL MCF51CN128 MCF51CN ColdFire V1 32-bit microcontroller microcontroller embedded processor 50 MHz 128 KB flash memory 128K x 8 10/100 BASE-T/TX fast Ethernet controller Media Independent Interface MII multi-function external bus 64-LQFP 10 mm x 10 mm package surface-mount package industrial Ethernet network gateway embedded control end-of-life overview NXP MCF51CN128 datasheet
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