MCF51MM256CLK - 50MHz 32-Bit MCU 256KB Flash | NXP
N.º de pieza: MCF51MM256CLK ✗ Fin de vida| Cant. | Precio unitario | Total |
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| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
MCF51MM256CLK Descripción general
The ColdFire V1 MCU is a member of the 32-bit microcontroller hierarchy: MCU, embedded processor, ColdFire architecture, and semiconductor. Its 50 MHz core provides deterministic control performance for meters, industrial equipment, medical instruments, human-interface systems, and connected products. The 256 KB flash configuration provides embedded firmware storage while supporting integration of measurement routines, display control, communications, and application-specific logic.
Key documented features include 32-bit processing, 50 MHz operation, 256 KB flash memory, USB connectivity, graphic-display support, and precision analog measurement capability. The product is identified as the MCF51MM256/128 family and is associated with low-cost, low-power, high-performance embedded designs. Its 80-LQFP package provides a clearly defined PCB footprint and external connectivity for memory, peripherals, analog interfaces, and control signals.
The MCF51MM256CLK is suitable for handheld metering devices, medical products, industrial instrumentation, and embedded systems that need a balance of processing performance, analog measurement, connectivity, and low power. The ColdFire V1 architecture is especially relevant when firmware benefits from 32-bit addressability and higher computational capability without moving immediately to a more complex application processor.
Designers should verify the complete pinout, electrical limits, clock requirements, memory configuration, USB implementation, and analog settling requirements against the NXP manufacturer datasheet before layout or firmware deployment. Because the part is listed as End of Life by NXP, new production designs should confirm lifecycle status and evaluate an approved successor or redesign plan.
This page combines the verified manufacturer and distributor identity, available package and memory information, sourcing context, and practical engineering considerations. It is intended to help engineers determine whether the legacy MCF51MM256CLK remains suitable for maintenance, repair, or controlled legacy production.
Alternativas directas para MCF51MM256CLK — 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 MCF51MM256CLK (mismo factor de forma y huella) — difiere en Package, Core Architecture, Mounting Type, Flash Memory, Lifecycle Status.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MCF51EM256CLL
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Ver hoja de datos →MCF51MM256CLK Valores máximos y características eléctricas
| Product Type | 32-bit microcontroller (MCU) |
| Architecture | ColdFire V1 |
| Frecuencia de reloj máxima | 50 MHz |
| Flash Memory | 256 KB (256K x 8) |
| Core Width | 32 bit |
| Encapsulado | 80-LQFP (12 x 12 mm) |
| Package Pin Count | 80 pins |
| Temperature Grade | Industrial |
| Terminal Form | Gull wing |
| USB Connectivity | Supported by MCF51MM256/128 family |
| Graphic Display Support | Supported by MCF51MM256/128 family |
| Analog Measurement Capability | Precision analog measurement capability |
| Power Characteristics | Ultra-low-power operation supported by family |
| Operating Voltage | 2.5 V / 3.3 V |
| Manufacturer | NXP Semiconductors |
| Estado del ciclo de vida | End of Life |
| Datasheet | MCF51MM256/128 manufacturer data sheet |
Guía de configuración de pines de MCF51MM256CLK 80 pins
Configuración de pines para MCF51MM256CLK (encapsulado 80 pins). 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.
No hay datos detallados de patillaje disponibles para MCF51MM256CLK.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MCF51MM256CLK es adecuado para 6 aplicacións: Handheld Metering, Medical Monitoring Equipment, Industrial Instrumentation, USB-Connected Embedded Products, Graphic Display Interface, Battery-Powered Portable Device.
Handheld Metering
The MCF51MM256CLK fits handheld metering equipment where a 50 MHz 32-bit ColdFire V1 core can support measurement processing, control logic, and user-interface updates while the family provides precision analog capability. Its 256 KB flash gives embedded firmware room for calibration, signal conditioning, display routines, and communications. In a battery-powered meter, verify low-power modes, analog settling, and regulator headroom against the NXP data sheet; the MCU itself does not determine the final measurement accuracy.
Recomendado
Medical Monitoring Equipment
The MCF51MM256CLK is relevant to medical monitoring and portable diagnostic products because NXP identifies the MCF51MM256/128 family as suitable for applications requiring significant precision analog capability. Its 32-bit 50 MHz architecture can coordinate acquisition, filtering, alarms, and interface behavior, while USB connectivity can support a host or service connection. These features do not constitute medical certification; engineers must validate accuracy, safety, EMC, and regulatory requirements at the complete-product level.
Recomendado
Industrial Instrumentation
For industrial instrumentation, the MCF51MM256CLK provides 32-bit processing, 50 MHz operation, and 256 KB flash in an 80-LQFP package suitable for control, acquisition, and communication firmware. The family's USB and analog capabilities can reduce the number of separate functions in a compact instrument. Confirm operating-temperature limits, EMC susceptibility, grounding, and isolation architecture in the final system rather than assuming that the MCU specification covers the complete industrial environment.
Recomendado
USB-Connected Embedded Products
The MCF51MM256CLK is appropriate for legacy embedded products that combine local control with USB connectivity. Its 50 MHz ColdFire V1 core can handle protocol tasks and application logic, and the 256 KB flash can store a substantial embedded image. The USB implementation must follow the NXP electrical, firmware, and layout requirements; include proper bus protection, controlled-impedance routing, grounding, and connector design based on the device data sheet.
Recomendado
Graphic Display Interface
The MCF51MM256CLK can serve as the controller in a compact graphic-display product because the MCF51MM256/128 family is explicitly described as providing graphic-display support. The 32-bit core and 50 MHz clock provide headroom for display updates and user-interface logic, while 256 KB flash stores firmware and graphics resources. Confirm the exact display interface, memory requirements, timing, and pin multiplexing from the complete NXP documentation before selecting it for a new design.
Recomendado
Battery-Powered Portable Device
The ultra-low-power operation attributed to the MCF51MM256/128 family makes this MCU relevant to battery-powered portable equipment, although the actual battery life depends on the complete power architecture and firmware duty cycle. Use the low-power modes, clock settings, and analog sequencing specified by NXP, and account for regulator quiescent current, sensor current, display load, and USB activity. Validate real-world current consumption across standby, active, and measurement states.
Recomendado
Datos de referencia de ingeniería para MCF51MM256CLK — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MCF51EM256CLL |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
Diferenciadores clave
- Verified 50 MHz 32-bit ColdFire V1 performance (frente a MCF51EM256CLL)
- Verified 256 KB flash configuration (frente a MCF51EM256CLL)
- Documented family capability for USB and graphic displays (frente a MCF51EM256CLL)
- Defined industrial 80-LQFP 12 x 12 mm package identity (frente a MCF51EM256CLL)
Notas de diseño
Design the power tree around the verified 2.5 V / 3.3 V operating indication, but confirm every voltage, sequencing, decoupling, and current requirement from the NXP MCF51MM256/128 data sheet. Place bulk and high-frequency decoupling close to the appropriate supply pins, keep analog and digital return paths controlled, and verify regulator headroom for the selected 50 MHz operating mode. Estimated current and dissipation values require the actual load, temperature, and efficiency and therefore are not specified here.
For an 80-LQFP legacy design, preserve the original footprint, pin numbering, pad geometry, and escape-routing strategy when making a like-for-like repair. Route clocks and sensitive analog signals away from high-current switching nodes, use a continuous ground reference where practical, and follow the datasheet’s package and thermal recommendations. Because the exact exposed-pad or thermal-pad arrangement is not present in the supplied verified snippets, inspect the official package drawing before fabrication.
Validate USB, clock, and display interfaces with the actual board stack-up and firmware timing. USB routing should use controlled impedance where required, provide continuous reference planes, and include appropriate protection and return-path continuity. For precision analog measurements, evaluate source impedance, sampling timing, grounding, filtering, and calibration rather than relying only on the MCU’s stated precision-analog capability.
Do not infer a drop-in replacement from a similar MPN, flash size, or family name. The supplied cross-reference evidence does not verify MCF51EM256CLL as pin-compatible with MCF51MM256CLK. For maintenance, confirm package, pinout, supply voltage, clocking, memory map, peripheral functions, interrupt behavior, and firmware dependencies. For new designs, first confirm whether an End of Life MCU is acceptable for the product’s qualification and sourcing plan.
Información de cumplimiento
The supplied verified data does not provide compliance declarations. Do not infer RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status from the distributor listings.
