NXP Semiconductors

MCF51AG128CLF - 32-Bit 50MHz 128KB MCU | NXP

N.º da peça: MCF51AG128CLF ✓ Ativo
Em estoque Enviado em 1 a 3 dias úteis
48-pin LQFP (7 x 7 mm) Package 50 MHz Speed 128 KB flash (128 K x 8) Memory
Contato para preços
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Preço atualizado: 2026-10-20
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MCF51AG128CLF Visão geral

The NXP Semiconductors MCF51AG128CLF is a 32-bit ColdFire V1 microcontroller operating at 50 MHz, with 128 KB of flash program memory and a 48-pin LQFP package measuring 7 x 7 mm. It also provides SCI and SPI connectivity, DMA, PWM, a watchdog timer, low-voltage detection, 39 I/O pins, and 16 K x 8 RAM according to the available datasheet and distributor data.

A microcontroller is a programmable semiconductor device that integrates a processor core, memory, and peripherals on one package. The ColdFire V1 MCU belongs to the embedded-control hierarchy: ColdFire architecture -> 32-bit microcontroller -> embedded processor -> semiconductor. This device targets industrial and appliance applications and is positioned as a performance-oriented upgrade path from the MC9S08AC128 8-bit family.

The principal verified characteristics are a 50 MHz ColdFire V1 core, 128 KB of flash organized as 128 K x 8, 16 K x 8 RAM, and 39 I/O pins. SCI and SPI interfaces support serial peripherals and external controllers, while DMA reduces CPU involvement in data transfers. PWM supports proportional control, the watchdog timer contributes system recovery, and low-voltage detection helps identify undervoltage conditions.

The 48-LQFP package exposes the MCU's I/O and supply connections in a surface-mount gull-wing format. Verified distributor records identify the device as a 32-bit microcontroller with flash memory and a 50 MHz clock, while the available secondary datasheet listing reports 16 K x 8 RAM and the listed communications and timing peripherals. Detailed electrical limits, pin names, memory maps, and peripheral behavior must be confirmed against the manufacturer datasheet before design release.

Typical uses include industrial controllers, appliance control panels, motor-related control logic, serial communication equipment, and embedded systems migrating from an 8-bit MCU to a 32-bit architecture. The ColdFire V1 processor provides greater computation capability than the referenced 8-bit upgrade path while retaining an embedded-control design model.

A key design consideration is package and pin verification. Because the LQFP footprint is sensitive to lead pitch, orientation, pad layout, and exposed thermal requirements, engineers should compare the complete symbol and datasheet pin table before substitution. Supply voltage, clock tolerances, flash endurance, SRAM specifications, and exact peripheral multiplexing were not fully available in the verified snippets.

This page combines verified distributor specifications, lifecycle information, source links, and replacement-analysis guidance. It does not invent cross-brand drop-in substitutes where the supplied web data does not establish exact pin compatibility.

Alternativas drop-in para MCF51AG128CLF — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.

Variantes desta série

Modelos da mesma série compatíveis como drop-in com MCF51AG128CLF (mesmo formato e footprint) — diferindo em Maximum Clock Frequency, Package, Series.

NXP Semiconductors
Maximum Clock Frequency: 50 MHz (50.33 MHz)
Package: 44-LQFP (10x10 mm)
Series: MCF51JM (Flexis)
Comparar com MCF51AG128CLF →

Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:

R5F52315ADFL#30

✅ Drop-In
📦 48-LFQFP (7 x 7 mm)
Comparison data lists 32-bit, 128 KB Flash, and 48-LFQFP, but pin, peripheral, and timing differences are not quantified in the supplied source.

📋 Alternativa de referência (fora do catálogo)

MCF51JM128VLD

✅ Drop-In
NXP Semiconductors
📦 48-LFQFP (7 x 7 mm)
ColdFire V1 (32-bit RISC) · 32-bit · 50 MHz (50.33 MHz) · 128 KB (128K x 8) · 16 KB · 2.7 V to 5.5 V · -40C to +105C · 44-LQFP (10x10 mm)

✓ Em estoque

$4.95 / unidade

Ver ficha técnica →

MCF51JM128EVLD

✅ Drop-In
📦 48-LFQFP (7 x 7 mm)
Same-brand comparison candidate, but the supplied data does not quantify pin, memory, peripheral, voltage, or package differences.

📋 Alternativa de referência (fora do catálogo)

MCF51AC256ACLKE

✅ Drop-In
📦 48-LFQFP (7 x 7 mm)
Same-brand comparison candidate; the comparison listing does not verify exact pin compatibility or quantify functional differences.

📋 Alternativa de referência (fora do catálogo)

MCF51CN128CLK

✅ Drop-In
📦 48-LQFP (7 x 7 mm)
Same-brand comparison candidate; the supplied comparison data does not establish exact pin compatibility or quantify feature differences.

📋 Alternativa de referência (fora do catálogo)

MCF51AG128CLF Classificações máximas e características elétricas

Product Type 32-bit microcontroller
Processor Core ColdFire V1
Architecture 32-bit RISC
Frequência máxima de clock 50 MHz
Program Memory 128 KB flash (128 K x 8)
RAM 16 K x 8
Series MCF51AG
Encapsulamento 48-pin LQFP (7 x 7 mm)
I/O Count 39 pins
Connectivity SCI and SPI
Peripherals DMA, LVD, PWM, and WDT
Application Domain Industrial and appliance control
Tipo de montagem Surface mount
Terminal Form Gull wing
Package Code LFQFP
Temperature Grade Industrial

Guia de Configuração de Pinos do MCF51AG128CLF lfqfp

Configuração de pinos para MCF51AG128CLF (pacote lfqfp). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.

Diagrama de pinagem do pacote lfqfp para MCF51AG128CLF

Nenhum dado detalhado de pinagem disponível para MCF51AG128CLF.

Consulte a ficha técnica para a configuração completa dos pinos.

Aplicações típicas

MCF51AG128CLF é adequado para 6 aplicaçãos: Industrial appliance controller, Appliance user-interface controller, Motor and proportional control, Serial communication equipment, 8-bit-to-32-bit controller migration, Data acquisition and monitoring.

🏭

Industrial appliance controller

The MCF51AG128CLF fits industrial appliance controllers that need a 32-bit control architecture without the complexity of a higher-performance application processor. Its verified 50 MHz ColdFire V1 core, 128 KB flash, and 16 K x 8 RAM provide headroom for control loops, state machines, and protocol handling. SCI and SPI can connect to sensors, displays, memory, or service interfaces, while PWM supports timing and proportional-control functions. Place the MCU in the 48-LQFP footprint only after checking the exact pin multiplexing, supply limits, and temperature requirements in the complete family datasheet.

💡

Appliance user-interface controller

For appliance user-interface and supervisory control, the MCF51AG128CLF combines 39 I/O pins with SCI and SPI connectivity in an industrial-oriented 48-LQFP package. A designer can allocate serial communication to a display or service controller and use PWM for indicators, valves, or motor-control signaling. The 128 KB flash program space is suitable for embedded UI logic and diagnostics, although exact memory and peripheral multiplexing must be verified. Software architecture should use the ColdFire toolchain and account for the difference from 8-bit S08 designs.

⚡

Motor and proportional control

The MCF51AG128CLF is a candidate for embedded motor or proportional-control logic where a 50 MHz core and PWM resources are useful for deterministic sequencing. SCI can support a host or diagnostics channel, while SPI can connect to a digital converter, gate driver, or sensor. The MCU is not a replacement for a dedicated high-current power stage; rather, it manages timing, control, protection coordination, and system state. Validate PWM frequency, pin routing, watchdog behavior, and thermal limits against the complete datasheet before connecting it to a power-conversion board.

🌐

Serial communication equipment

MCF51AG128CLF is suitable for embedded serial communication equipment because its verified feature set includes SCI, SPI, DMA, and a 50 MHz 32-bit core. SCI can support an external modem, service port, or distributed control link, while SPI can provide a fast interface to a serial transceiver, display, or storage device. DMA can reduce interrupt overhead for repetitive transfers, and the watchdog timer can improve recovery after faults. Final baud-rate limits, peripheral clock requirements, and multiplexing must be checked in the manufacturer datasheet.

🔧

8-bit-to-32-bit controller migration

The MCF51AG128 datasheet describes the MCF51AG128 family as an upgrade path from MC9S08AC128 8-bit designs. MCF51AG128CLF is appropriate when an existing appliance or industrial controller needs more addressable performance, a 50 MHz 32-bit ColdFire V1 core, and 128 KB flash while retaining a familiar embedded-control workflow. Migration is not a pin-level or source-level substitution: reassess startup code, memory organization, interrupt priorities, peripheral registers, drivers, and board-level electrical limits before production.

🧩

Data acquisition and monitoring

The 32-bit ColdFire V1 core and verified SCI/SPI connectivity make MCF51AG128CLF a reasonable base for compact monitoring equipment. SPI can connect to sensors or converters, SCI can provide a communications path to a host, and DMA can support recurring data movement. The 16 K x 8 RAM should be checked against the selected buffer strategy, while the 128 KB flash program area should be sized with the ColdFire firmware and diagnostics included. Confirm ADC availability, pin assignments, sampling timing, and operating-temperature limits because they are not quantified in the supplied snippets.

What is the MCF51AG128CLF?
The MCF51AG128CLF is a 32-bit ColdFire V1 microcontroller rated at 50 MHz, with 128 KB of flash, SCI and SPI connectivity, and a 48-LQFP package. According to the linked MCF51AG128 datasheet, the MCF51AG128 family targets industrial and appliance applications and can serve as an upgrade from the MC9S08AC128 8-bit MCU family. Its peripheral set includes DMA, PWM, a watchdog timer, and low-voltage detection.
What are the key specifications of MCF51AG128CLF that engineers should know?
The key verified specifications are a 50 MHz ColdFire V1 core, 128 KB flash organized as 128 K x 8, 16 K x 8 RAM, 39 I/O pins, and SCI plus SPI connectivity. The device is supplied in a 48-pin, 7 x 7 mm LQFP package. Available manufacturer-linked data also identifies DMA, PWM, low-voltage detection, and a watchdog timer. Exact supply-voltage and temperature limits require the complete manufacturer datasheet.
Where can I download the MCF51AG128CLF datasheet PDF?
The MCF51AG128CLF datasheet can be accessed through the linked Mouser-hosted MCF51AG128 datasheet PDF. The same 48-pin part is also indexed by DigiKey and Mouser distributor pages. The linked manufacturer-family document should be used for the final pinout, electrical limits, memory map, clock requirements, and peripheral register definitions. The CLF suffix identifies the package/order configuration covered by the available family documentation.
Where can I find the MCF51AG128CLF pinout?
The MCF51AG128CLF pinout is found in the pin assignment and package drawings of the MCF51AG128 family datasheet. The verified package is 48-pin LQFP, 7 x 7 mm, with gull-wing terminals. Use the exact pin-number table before routing because alternate peripheral functions can share I/O pins and because an apparent package similarity does not guarantee electrical or functional equivalence. No independently verified pin names were included in the supplied snippets.
Is MCF51AG128CLF in stock?
The verified DigiKey and Mouser records describe MCF51AG128CLF listings and availability-related actions, but the supplied data does not provide a numeric stock count or a current manufacturer inventory guarantee. Treat availability as changing and confirm the quantity and lifecycle status with the authorized distributor at order time. The product record identifies the part as active in the supplied distributor data, but active status is not the same as guaranteed inventory.
What is the price of MCF51AG128CLF?
The supplied verified results do not expose actual unit-price numbers for MCF51AG128CLF, so the pricing tiers are intentionally not fabricated. DigiKey, Mouser, Octopart, and other distributor listings are available for live quotation, and prices can vary with quantity, distributor, and market conditions. The XAIPART tier table records zero only where no verified price was provided; obtain a current quote before procurement.
What is the lead time for MCF51AG128CLF?
A numeric lead time for MCF51AG128CLF is not present in the supplied verified data. Lead time depends on distributor inventory, manufacturer allocation, package configuration, and order quantity, so the correct answer is to request a dated quotation from the supplier. Do not infer lead time from the existence of a DigiKey or Mouser listing. For production planning, also confirm the manufacturer lifecycle status and any applicable change notifications.
Where to buy MCF51AG128CLF online?
You can query MCF51AG128CLF through the verified DigiKey and Mouser listings, or compare available offers through Octopart. These channels provide the clearest route for checking current inventory, authorized sourcing, and volume pricing. Because this page does not include live numeric prices or a confirmed stock count, use the distributor pages for the actual commercial offer. Confirm the exact MPN, package code, and tray or reel packaging before placing an order.
Is MCF51AG128CLF suitable for industrial and appliance applications?
Yes. The MCF51AG128 datasheet describes the MCF51AG128 family as intended for industrial and appliance applications. Its 32-bit ColdFire V1 processor, 50 MHz operating speed, flash program memory, SCI and SPI interfaces, DMA, and PWM make it suitable for embedded controllers that need more processing capability than an 8-bit MCU. Verify the exact electrical and temperature limits against the family datasheet before using it in a deployed product.
What can replace MCF51AG128CLF?
The supplied cross-reference search did not establish a verified same-package, pin-compatible replacement for MCF51AG128CLF. Candidates such as R5F52315ADFL#30, MCF51JM128VLD, MCF51AC256ACLKE, and MCF51CN128CLK appear in comparison listings, but those snippets are insufficient to prove exact pin compatibility or drop-in status. Treat them as engineering review candidates, not approved drop-in substitutes, until the full datasheets and board-level comparison are checked.
Is MCF51AG128CLF the same as MCF51JM128VLD or MCF51JM128EVLD?
No conclusion of equivalence can be made from the supplied data. MCF51JM128VLD and MCF51JM128EVLD are listed in a comparison page against MCF51AG128CLF, but the snippets do not provide matching package, pinout, memory, peripheral, voltage, or timing data. They should not be described as drop-in replacements without direct datasheet verification. The comparison page is useful as a starting point for evaluating functional alternatives.
When should I choose MCF51AG128CLF over another microcontroller?
Choose MCF51AG128CLF when a design needs the verified combination of a 32-bit ColdFire V1 core, 50 MHz operation, 128 KB flash, SCI and SPI, and a 48-LQFP industrial-oriented package. It is also a logical candidate when migrating from the MC9S08AC128 8-bit family, as identified in the datasheet description. Do not choose it solely by package similarity; compare voltage, clock, memory, peripheral multiplexing, software ecosystem, and lifecycle requirements.
Can R5F52315ADFL#30 replace MCF51AG128CLF?
R5F52315ADFL#30 should not be treated as a confirmed drop-in replacement. One supplied comparison result describes it as a 32-bit, 128 KB Flash MCU in a 48-pin LFQFP package, but that does not establish pin-to-pin compatibility, ColdFire instruction compatibility, peripheral mapping, or electrical equivalence. Verify the complete R5F52315 datasheet, MCF51AG128 datasheet, and PCB footprint before considering it for production.
What is the best NXP equivalent for MCF51AG128CLF?
The supplied data does not identify a verified NXP equivalent that is distinct from MCF51AG128CLF and proven to be drop-in compatible. MCF51AG-family devices may share architectural or package similarities, but the available snippets do not document an exact substitute for the CLF configuration. Use NXP's current product documentation and distributor cross-reference tools to confirm an exact same-package candidate, then validate firmware, memory, peripherals, and supply conditions.
What design details should be checked before purchasing MCF51AG128CLF?
Before purchasing, confirm the 48-pin LQFP footprint, pin 1 orientation, lead pitch, and exposed-pad requirements against the mechanical drawing. Then verify supply voltage, clock source, reset requirements, memory organization, peripheral multiplexing, and package temperature grade. The verified snippets identify 50 MHz, 128 KB flash, 39 I/O pins, and 7 x 7 mm LQFP packaging, but they do not provide every electrical limit needed for a production release.
Does MCF51AG128CLF support DMA, PWM, SCI, and SPI?
Yes. The supplied distributor and datasheet listings identify SCI, SPI, DMA, PWM, low-voltage detection, and a watchdog timer among the device features. These peripherals support serial communication, external data transfer, proportional timing or motor-control functions, supply monitoring, and independent system supervision. Exact channel counts, operating modes, and pin multiplexing must be confirmed in the complete MCF51AG128 datasheet.
What is the difference between MCF51AG128CLF and MC9S08AC128?
The main difference is architecture and processing width: MCF51AG128CLF is a 32-bit ColdFire V1 MCU at 50 MHz, while MC9S08AC128 belongs to the 8-bit MCU family referenced in the MCF51AG128 datasheet. The MCF51AG device also provides 128 KB flash and the listed SCI, SPI, DMA, PWM, LVD, and WDT resources. A migration still requires software, memory-map, peripheral, and pin-level engineering review.
How do I verify MCF51AG128CLF lifecycle and sourcing?
Use the current NXP product documentation and an authorized distributor record to verify lifecycle status, stock, and sourcing. The supplied distributor data describes the MCF51AG128CLF listing and identifies the part as active, but it does not provide a guaranteed inventory quantity or a dated lifecycle commitment. Record the supplier response and confirm any product change notices before releasing a long-running production design.
What compliance information is available for MCF51AG128CLF?
The supplied verified snippets do not explicitly state RoHS, REACH, AEC-Q100, lead-free, or halogen-free status for MCF51AG128CLF. Those fields must remain unknown or marked as data-needed rather than being inferred from the manufacturer name or distributor listing. Obtain the current manufacturer declaration, product page, or distributor compliance documentation for procurement and regulatory sign-off.

Dados de referência de engenharia para MCF51AG128CLF — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

Choose MCF51AG128CLF for an embedded industrial or appliance design that specifically benefits from its verified 50 MHz 32-bit ColdFire V1 core, 128 KB flash, 16 K x 8 RAM, SCI/SPI connectivity, DMA, PWM, LVD, and watchdog resources. It is particularly relevant when moving from the MC9S08AC128 8-bit family and when a 48-LQFP, 39-I/O controller is acceptable. R5F52315ADFL#30 may be worth evaluating because a comparison result reports a 48-LFQFP, 128 KB Flash MCU, but it is not verified here as pin-compatible. MCF51JM128VLD, MCF51JM128EVLD, MCF51AC256ACLKE, and MCF51CN128CLK remain review candidates, not approved substitutes. Confirm electrical limits, pin multiplexing, firmware toolchain, memory, lifecycle, and sourcing before selecting any alternative.

Comparação com alternativas

Parâmetro Este produto R5F52315ADFL#30 MCF51JM128VLD MCF51JM128EVLD MCF51AC256ACLKE MCF51CN128CLK
Package 48-LQFP (7 x 7 mm) 48-LFQFP (7 x 7 mm) 48-LFQFP (7 x 7 mm) 48-LFQFP (7 x 7 mm) 48-LFQFP (7 x 7 mm) 48-LQFP (7 x 7 mm)
Brand NXP Semiconductors Renesas Electronics NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors

Principais diferenciais

  • 32-bit ColdFire V1 architecture (vs MC9S08AC128)
  • 128 KB flash program memory (vs MCF51AC256ACLKE)
  • Dedicated connectivity and timing peripherals (vs MCF51CN128CLK)
  • Verified 39-I/O industrial package configuration (vs MCF51JM128VLD)

Notas de projeto

Do not treat a 48-LQFP package match as proof of drop-in compatibility. Compare the complete mechanical drawing, pin-number table, power pins, ground pins, reset input, clock pins, alternate peripheral functions, and exposed-pad requirements. The supplied search results identify comparison candidates but do not provide enough electrical and pin-level detail to approve a production substitution without a formal review.

Route high-current supply and return paths deliberately and place required bypass capacitors close to the device power pins. Separate serial, clock, and sensitive control signals from switching nodes and high-current motor or power-stage routes. Because the available snippets do not provide pin names, pin multiplexing, or recommended capacitor values, use the complete MCF51AG128 family datasheet and reference design before laying out the PCB.

Estimate junction temperature from the actual supply voltage, I/O loading, clock activity, package thermal resistance, and ambient temperature rather than assuming that a 50 MHz rating alone determines thermal performance. The supplied data does not provide operating voltage, power dissipation, junction-temperature limits, or theta_JA, so those values must be obtained from the manufacturer datasheet before conducting a production thermal review.

Validate power sequencing, decoupling, and brownout behavior with the exact datasheet limits. The listed LVD feature can help detect undervoltage conditions, but it does not replace a safe power architecture. Confirm regulator tolerance, startup behavior, reset release, and watchdog interaction in hardware; none of these detailed values are present in the verified snippets.

Treat firmware migration from the MC9S08AC128 family as a software and memory-model project, not a binary drop-in change. Review startup code, interrupt vectors, register definitions, peripheral drivers, timing assumptions, and RAM allocation. The MCF51AG128 datasheet describes the device as an upgrade option, but that statement does not remove board-level compatibility requirements.

Informações de conformidade

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
Sem chumbo
Unknown
Sem halogênios
Unknown
Minerais de conflito
Unknown

No explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statement was present in the supplied verified data. Compliance must be confirmed from current NXP documentation or the distributor.

Dados verificados em: 2026-10-20 — dados verificados e curados pela equipe de engenharia de componentes da XAIPART

Buscas relacionadas

MCF51AG128CLF MCF51AG128CLF datasheet NXP MCF51AG128CLF MCF51AG128 50 MHz ColdFire V1 MCF51AG128CLF 128KB Flash 48-LQFP 32-bit microcontroller MCF51AG128CLF SCI SPI DMA PWM MCF51AG128CLF industrial appliance controller MCF51AG128CLF vs MC9S08AC128 MCF51AG128CLF replacement MCF51AG128CLF buy price MCF51AG128CLF pinout MCF51AG128CLF lead time MCF51AG128CLF R5F52315ADFL#30 comparison ColdFire V1 microcontroller 48-LQFP

Componentes & termos relacionados

NXP Semiconductors MCF51AG128CLF MCF51AG128 ColdFire V1 32-bit RISC microcontroller embedded microcontroller ColdFire architecture semiconductor 128 KB Flash 16 K x 8 RAM 50 MHz SCI SPI DMA PWM LVD WDT 48-LQFP 7 x 7 mm LQFP industrial control appliance control MC9S08AC128 RoHS REACH AEC-Q100
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