MCF51MM256CLK - 50MHz 32-Bit MCU 256KB Flash | NXP
MPN: MCF51MM256CLK ✗ Cuối đờiMCF51MM256CLK Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho MCF51MM256CLK — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MCF51MM256CLK (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Mounting Type, Flash Memory, Lifecycle Status.
MCF51EM256CLL
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Xem tài liệu →MCF51MM256CLK Tỷ lệ tối đa & tính chất điện
| Product Type | 32-bit microcontroller (MCU) |
| Architecture | ColdFire V1 |
| Tần số xung maksimum | 50 MHz |
| Flash Memory | 256 KB (256K x 8) |
| Core Width | 32 bit |
| Hộp | 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 |
| Trạng thái vòng đời | End of Life |
| Datasheet | MCF51MM256/128 manufacturer data sheet |
Hướng dẫn cấu hình chân MCF51MM256CLK 80 pins
Cấu hình chân cho MCF51MM256CLK (80 pins gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho MCF51MM256CLK.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MCF51MM256CLK phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Dữ liệu tham khảo kỹ thuật cho MCF51MM256CLK — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MCF51EM256CLL |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
Bảo phân biệt quan trọng
- Verified 50 MHz 32-bit ColdFire V1 performance (vsMCF51EM256CLL)
- Verified 256 KB flash configuration (vsMCF51EM256CLL)
- Documented family capability for USB and graphic displays (vsMCF51EM256CLL)
- Defined industrial 80-LQFP 12 x 12 mm package identity (vsMCF51EM256CLL)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
