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MCF51JE128CMB - 32-Bit 50MHz MCU, 128KB Flash | NXP
MCF51JE128CMB

MCF51JE128CMB - 32-Bit 50MHz MCU, 128KB Flash | NXP

NXP Semiconductors MCF51JE128CMB is a 32-bit ColdFire V1 microcontroller operating at up to 50MHz, with 128KB of flash memory in an 81-MAPBGA package measuring 10mm by 10mm. The device is designed for embedded control applications requiring low-power operation, USB connectivity, and high measurement accuracy. Its integrated feature set supports cost-conscious designs that need more capability than an 8-bit MCU without moving immediately to a larger general-purpose processor. A microcontroller is a semiconductor device that integrates a CPU, memory, peripherals, and input/output interfaces into one compact component. The MCF51JE128 belongs to the ColdFire V1 MCU family and combines a 32-bit processor with embedded flash and application peripherals. In the broader system hierarchy, it belongs to the embedded processor and controller category, connecting a microcontroller core with memory, communications, timing, and measurement resources. The supplied distributor information identifies the part as a ColdFire V1 device with 128KB flash, a 50MHz maximum clock, and an 81-MAPBGA package. The family description also identifies USB connectivity, ultra-low-power operation, and high measurement accuracy as important device attributes. These characteristics make the MCU suitable for USB-connected control products, compact instrumentation, industrial equipment, and low-power embedded systems where integration and measurement performance matter. The 32-bit ColdFire V1 CPU provides the computational basis for control logic, communications, and data acquisition. Flash memory supports resident firmware and application code, while the integrated peripherals can reduce the number of external components required in a compact design. The 50MHz operating specification provides a defined performance target for control-loop and communication workloads, although actual application performance depends on firmware, memory configuration, peripherals, and system conditions. Typical applications include USB peripheral controllers, sensor and measurement systems, compact industrial controllers, and embedded products that require a small package and low-power operation. The 81-MAPBGA package is suitable for space-constrained products but requires careful PCB layout, fine-pitch routing, and controlled assembly. Designers should confirm pin functions, power requirements, clocking, USB connectivity, and peripheral assignments against the manufacturer datasheet before releasing a production layout. For USB designs, budget for proper power distribution, signal routing, decoupling, and connector integration. For measurement systems, verify the required accuracy, reference sources, analog interfaces, and calibration strategy. Because the supplied data does not provide a complete electrical parameter table or package pin map, use the manufacturer datasheet as the authoritative source for final design decisions. This product data consolidates distributor listings, family-level technical information, and practical design considerations for engineers evaluating the MCF51JE128CMB. It is intended to support initial component selection while preserving clear separation between verified specifications and parameters that still require datasheet confirmation.

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MCF51JE128VLK - Coldfire V1 32-Bit MCU, 50MHz, 128KB Flash | NXP
MCF51JE128VLK

MCF51JE128VLK - Coldfire V1 32-Bit MCU, 50MHz, 128KB Flash | NXP

The NXP (formerly Freescale) MCF51JE128VLK is a Coldfire V1 MCF51JE series 32-bit microcontroller IC running at 50 MHz, with 128 KB of embedded Flash program memory (128K x 8) housed in an 80-pin LQFP (VLK) package measuring 12 x 12 mm. The part is built on a Coldfire V1 Harvard architecture core with integrated rich connectivity peripherals including CANbus, EBI/EMI, I2C, SCI, SPI and USB OTG. A microcontroller is a single-chip processor that integrates a CPU core, program memory (Flash), data memory (RAM), and a mix of on-chip peripherals (timers, communication controllers, ADCs, GPIO). Within the broader hierarchy, MCF51JE128VLK belongs to Coldfire V1 -> Freescale/NXP 32-bit MCU family -> embedded microcontroller -> MPU/MCU -> semiconductor device. Coldfire V1 is a streamlined 32-bit instruction set derived from the original Coldfire architecture, designed for deterministic embedded control. Key features include 47 user I/O pins, an internal watchdog (WDT), PWM peripherals, low-voltage detect (LVD), and direct USB-OTG support without an external PHY on most variants. The integrated CAN controller simplifies industrial and automotive networking, while multiple serial interfaces (SCI/UART, SPI, I2C) let engineers attach sensors, memories, or human-machine interface (HMI) blocks. The 50 MHz CPU clock combined with Flash-fetch acceleration provides deterministic interrupt latency for closed-loop control. Technically the device integrates a Coldfire V1 core (ISA derived from the original 68k/Coldfire lineage) on-chip with 128 KB Flash and a small SRAM region; the bus structure includes an EBI/EMI bridge for off-chip memory/peripheral expansion. The USB-OTG module supports both host and device roles, useful for field-upgradable industrial controllers or USB-CDC / MSD peripherals. Typical applications include CAN-based industrial motor and lighting controllers, USB-tethered human interface devices (HID), appliance control boards, building automation nodes, and CAN-based sensor hubs in factory automation. The 47 GPIO count supports multiple keypad rows/columns plus parallel display interfacing. When designing with this part, note that it is reported as Obsolete in at least one distributor's lifecycle feed; verify active stock, last-time-buy dates, and consider the pin-compatible variants in the MCF51JE and MCF51MM series if long-term availability is critical. This page synthesizes verified distributor pricing and datasheet excerpts with drop-in same-package alternatives and design notes not typically collected on a single product listing.

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MCF51JE128VMB - 32-bit ColdFire V1 MCU, 128KB Flash, 50MHz, USB | NXP
MCF51JE128VMB

MCF51JE128VMB - 32-bit ColdFire V1 MCU, 128KB Flash, 50MHz, USB | NXP

The NXP MCF51JE128VMB is a 32-bit ColdFire V1 microcontroller with 128 KB Flash, 32 KB SRAM, integrated USB On-The-Go (OTG), and a 50 MHz core, delivered in an 81-ball MAPBGA (10x10 mm) package. As the 128 KB Flash variant of the MCF51JE family, it pairs ultra-low-power operation with high-accuracy analog peripherals and full-speed USB, enabling cost-optimized designs that need measurement precision and connectivity in a single chip. What is a ColdFire microcontroller? ColdFire is NXP's (originally Freescale's) 32-bit microprocessor architecture derived from the original Motorola 68000 family. Devices in the MCF51JE series sit in the same hierarchy as: ColdFire V1 core -> 32-bit MCU -> embedded microcontroller -> integrated circuit. Compared with 8-bit MCUs (e.g., 8051, AVR), ColdFire V1 gives 32-bit processing in a low-power envelope suited for industrial and consumer embedded systems. Key features include up to 50 MHz core frequency, 128 KB program Flash, 32 KB SRAM, integrated USB 2.0 full-speed OTG with on-chip transceiver, multiple serial interfaces (CAN, I2C, SCI/UART, SPI), 12-bit ADC, and PWM/timer modules. Up to 48 GPIO pins give designers flexibility for sensor or user-interface I/O. The integrated USB OTG controller eliminates the need for an external transceiver, reducing BOM cost. The ColdFire V1 core uses a variable-length instruction set with a 32-bit register model, balancing code density with throughput. On-chip peripherals include a low-voltage detection (LVD) module, watchdog timer, and PWM units. The internal bus matrix and Flash controller enable deterministic interrupt response suitable for real-time control. Typical applications include USB smart metering, industrial sensor hubs, low-cost measurement equipment, and consumer devices needing embedded USB (e.g., data loggers, HID peripherals). It is well-suited for battery-powered designs because of the family's low-power modes. When designing with the MCF51JE128VMB, ensure PCB layout accommodates the MAPBGA's 0.8 mm ball pitch - careful fan-out and possibly 4-layer stack-up are recommended. For non-USB applications in the same family, consider the lower-cost MCF51AC series; for higher pin count, see the MCF51MM family. This page synthesizes distributor pricing, same-family alternative variants (MCF51JE256CMB, MCF51JE256VML), and practical BGA-layout design notes not found in a typical catalog summary.

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MCF51JE256CLK - ColdFire V1 32-bit MCU, 256KB Flash | NXP
MCF51JE256CLK

MCF51JE256CLK - ColdFire V1 32-bit MCU, 256KB Flash | NXP

The NXP MCF51JE256CLK is a 32-bit ColdFire V1 microcontroller featuring 256KB of Flash, 32KB of RAM, a 50MHz core, and an integrated USB 2.0 Full-Speed controller, housed in an 80-pin LQFP (12x12 mm) package. It belongs to NXP's MCF51JE family, combining ultra-low-power operation, USB connectivity, and high analog measurement accuracy in a single mixed-signal MCU. What is a ColdFire V1 microcontroller? ColdFire V1 is a 32-bit RISC processor architecture derived from the original Motorola 68000 family, optimized for embedded applications that need higher performance than 8/16-bit MCUs but with the deterministic interrupt response and low power consumption required by industrial and consumer systems. The ColdFire V1 core sits within the broader hierarchy of 32-bit microcontroller cores -> microcontroller -> embedded processor -> semiconductor, and competes architecturally with ARM Cortex-M0/M0+ devices while preserving ColdFire instruction-set compatibility for legacy code bases. The MCF51JE256CLK integrates a 12-bit SAR ADC with up to 20 channels, a 12-bit DAC, multiple timers (FTM, PWT, RTC), an I2C bus, two SCI/UART modules, and an SPI peripheral set. Its high-resolution analog front-end supports precision sensor conditioning in industrial metering and medical instrumentation. The integrated USB 2.0 Full-Speed On-The-Go (OTG) controller with dedicated PHY enables direct device/host/OTG roles without external transceivers. Typical applications include industrial metering and data loggers, USB HID peripherals, smart sensors, medical monitoring devices, and low-power portable instrumentation. The wide operating voltage range of 2.7V to 5.5V makes it compatible with both 3.3V and 5V system rails. Multiple low-power modes (Wait, Stop, Standby) allow deep power optimization for battery-powered designs. When designing with this MCU, allocate PCB area for a decoupling cap cluster near each power pin and ensure the USB D+/D- traces are 90-ohm differential-matched and as short as possible. For new designs, verify NXP's PCN notice for the MCF51JE family before committing, as several variants have entered End-of-Life status. The standard 80-LQFP footprint and JTAG/SWD debug path ease migration to alternate members of the JE family.

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MCF51JE256CMB - 32-Bit 50MHz 256KB MCU | NXP
MCF51JE256CMB

MCF51JE256CMB - 32-Bit 50MHz 256KB MCU | NXP

The NXP MCF51JE256CMB is a 32-bit ColdFire V1 microcontroller rated up to 50 MHz, with 256 KB of flash memory, 32 KB of RAM, and 48 I/O pins in an 81-ball MAPBGA package measuring 10 mm by 10 mm. It is designed for compact embedded systems that require broad connectivity, precision measurement, and low-power operation. A microcontroller is a programmable system-on-chip that integrates a processor core, nonvolatile program memory, working memory, peripherals, and input/output interfaces. The MCF51JE belongs to the ColdFire V1 MCU hierarchy and combines USB connectivity, high-resolution analog conversion, timing, communications, and measurement functions. This makes the device useful for industrial control, data acquisition, USB-enabled instruments, and embedded consumer equipment. Key verified characteristics include 256 KB of program flash, 32 KB of RAM, 48 I/O pins, a 50 MHz operating frequency, an external oscillator, and operation from 2.5 V or 3.3 V supplies. The 81-LBGA or 81-MAPBGA package supports dense PCB integration but requires careful escape routing and thermal design because of its fine ball pitch and central land pattern. The ColdFire V1 core provides a 32-bit RISC-oriented architecture for embedded control, while the integrated analog and peripheral resources reduce the need for external components. USB connectivity enables USB-connected peripherals or host-side control functions, depending on the device configuration and firmware requirements. The high-resolution ADC and DAC resources described by the manufacturer support precision measurement and signal-generation designs. Typical applications include USB data-acquisition equipment, industrial measurement modules, compact control systems, laboratory instruments, and embedded USB accessories. The external oscillator requirement means the system must provide an appropriate clock source and associated layout. Designers should also verify the complete pin multiplexing, power sequencing, decoupling, and exposed-pad requirements directly against the NXP MCF51JE256/128 datasheet before layout release. A key design consideration is package escape routing. Because the device uses an 81-ball MAPBGA rather than a leaded package, power, ground, USB, analog, and high-speed signals need short, controlled routes through the PCB stack-up. The NXP datasheet is the authoritative source for ball assignments, electrical limits, AC timing, power consumption, and reference circuit details.

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MCF51JE256VLK - 32-Bit 50MHz 256KB Flash MCU | NXP
MCF51JE256VLK

MCF51JE256VLK - 32-Bit 50MHz 256KB Flash MCU | NXP

The NXP Semiconductors MCF51JE256VLK is a 32-bit ColdFire V1 microcontroller operating up to 50 MHz, with 256 KB of Flash memory and 47 general-purpose I/O pins in an 80-pin LQFP package. It integrates USB connectivity, high-resolution ADC and DAC modules, CANbus, USB OTG, and serial peripherals for compact embedded-control systems. A microcontroller is a programmable embedded-processing IC that combines a CPU core, memory, analog and digital peripherals, and I/O in one device. The ColdFire V1 MCU belongs to the microcontroller and embedded-processor hierarchy, providing higher-word-width processing than an 8-bit or 16-bit design while retaining a cost-focused platform for industrial and control-oriented products. Unlike a general-purpose computer processor, the MCU integrates the resources needed for standalone control, sensing, communications, and actuator management. Key features include a 32-bit architecture, 50 MHz maximum operating frequency, 256 KB (256K x 8) Flash, 47 I/O, and operation from 2.5 V to 3.3 V as identified in the provided distributor and technical records. Integrated connectivity includes CANbus, USB OTG, I2C, SCI, and SPI. The analog feature set includes a high-resolution ADC and DAC, while timers, PWM, low-voltage detection, and a watchdog support dependable embedded-control designs. The device is positioned for low-cost, low-power, high-performance embedded systems where USB and measurement accuracy matter. Its integrated USB connectivity can simplify direct host-device communication, while CANbus and serial interfaces support industrial networking and external sensors. The 80-LQFP package provides 47 external I/O pins, allowing multiple digital interfaces and analog signals to be connected without an extremely dense fine-pitch package. Typical applications include industrial control panels, USB-connected data-acquisition equipment, CAN-based monitoring systems, low-cost embedded instrumentation, and compact consumer devices. The 50 MHz ColdFire V1 core provides a performance margin for protocol handling and control loops, while the Flash capacity supports firmware and application code. Designers should verify package-specific pin functions and peripheral availability against the NXP datasheet before final PCB release. A key design consideration is supply and decoupling. The MCU requires a stable 2.5 V or 3.3 V rail depending on the selected operating configuration, and its high-speed digital and USB paths demand careful power-plane and return-path planning. Use short, wide supply connections, place decoupling capacitors near the appropriate pins, and keep USB and high-speed signal traces away from noisy switching nodes. This page consolidates the verified distributor and manufacturer information for MCF51JE256VLK, including core identity, package, memory, interfaces, lifecycle status, sourcing context, and design guidance. Because NXP marks the part as End of Life, engineers should confirm availability, last-time-buy conditions, firmware support, and any approved migration path before committing it to a new production design.

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MCF51JE256VMB - 32-Bit 50MHz 256KB MCU | NXP
MCF51JE256VMB

MCF51JE256VMB - 32-Bit 50MHz 256KB MCU | NXP

The NXP Semiconductors MCF51JE256VMB is a 32-bit ColdFire V1 microcontroller operating at 50 MHz, with 256 KB of Flash program memory, 32 KB of RAM, and 48 I/O pins in an 81-MAPBGA package measuring 10 mm by 10 mm. It is designed for low-cost, low-power embedded systems requiring USB connectivity and high-resolution measurement capabilities. A microcontroller is a programmable system-on-chip that integrates a CPU, memory, and peripherals into one package. The MCF51JE256 belongs to the ColdFire V1 family and combines a 32-bit RISC-oriented processor core with embedded Flash, RAM, analog and digital peripherals, and connectivity functions. This integration reduces component count and simplifies firmware-focused product development. Key verified features include a 50 MHz operating speed, 256 KB of Flash memory, 32 KB of RAM, 48 I/O pins, and USB connectivity. The device is also identified as supporting high measurement accuracy, making it useful for products that combine control, data acquisition, and communications in a compact embedded platform. Its external oscillator listing indicates that clocking must be supplied or configured through the supported external clock arrangement. The MCF51JE256/128 family is described as an energy-efficient, low-power solution from Freescale, now represented by NXP. The ColdFire V1 architecture provides a 32-bit processing environment while retaining a cost-conscious microcontroller platform for embedded control. Exact peripheral availability and package-level details should be confirmed against the MCF51JE256/128 data sheet because not every feature is available in every device or package. Typical applications include USB-connected control systems, data-acquisition equipment, industrial monitoring, and compact consumer products. The 256 KB Flash capacity supports a larger embedded program than smaller MCUs, while the 48-pin I/O count provides more external interface options. Engineers should verify pin multiplexing, power requirements, clocking, and board-level USB implementation before finalizing a design. For a new layout, use the exact 81-MAPBGA footprint and confirm ball assignments, exposed-pad requirements, and recommended decoupling against the manufacturer data sheet. The part is listed in tray packaging in the retrieved distributor information, and distributors report it as an NXP USA Inc. or Freescale Semiconductor-origin device.

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MCF51JE256VML - 32-Bit 50MHz 256KB Flash MCU | NXP
MCF51JE256VML

MCF51JE256VML - 32-Bit 50MHz 256KB Flash MCU | NXP

The NXP Semiconductors MCF51JE256VML is a 32-bit ColdFire V1 microcontroller operating at 50 MHz, with 256 KB of flash program memory and a 104-MAPBGA package measuring 10 x 10 mm. It integrates USB OTG, CANbus, EBI/EMI, I2C, SCI, SPI, PWM, low-voltage detection, and a watchdog timer, providing a broad hardware interface for connected embedded products. A microcontroller is a programmable integrated circuit that combines a processor core, memory, communication peripherals, and input/output control. The MCF51JE256VML belongs to the 32-bit MCU hierarchy and is designed to consolidate control, measurement, communications, and USB functionality into one device. Its ColdFire V1 core provides a 32-bit processing architecture, while the integrated peripherals reduce the need for external interface components. Verified listings identify 256 KB of flash memory, a 50 MHz operating frequency, a 32-bit architecture, and a 104-MAPBGA package. Other listed characteristics include 32 KB RAM, 69 I/O, and connectivity including CANbus, USB OTG, I2C, SCI, SPI, and EBI/EMI. These features support embedded control systems that require both local processing and multiple external interfaces. The device is positioned for low-power operation, USB connectivity, and high measurement accuracy according to the retrieved product information. Its integrated communication peripherals can simplify system design when an application uses several serial buses or a USB connection. The 104-MAPBGA package also supports compact high-pin-count assemblies, although BGA layout and assembly require careful PCB design and inspection. Typical application areas include USB-connected embedded controllers, CANbus equipment, industrial measurement systems, motor and actuator control, and low-power consumer electronics. The combination of 256 KB flash, 32-bit processing, USB OTG, and multiple serial interfaces is useful when firmware, control logic, and communication tasks must coexist on one microcontroller. For new designs, engineers should confirm the complete pinout, electrical limits, memory map, clock requirements, USB implementation details, and package-specific layout recommendations from the manufacturer datasheet before layout release. This page summarizes the verified 50 MHz, 32-bit, 256 KB flash, USB OTG, CANbus, and 104-MAPBGA information without inferring unprovided electrical values. This data page consolidates distributor identification, datasheet references, application context, and verified interface details to help engineers evaluate the MCF51JE256VML efficiently. For purchasing, pricing, lifecycle status, and exact stock information, confirm the current distributor listing as of 2026-10-20.

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MCF51JF32VFM - ColdFire V1 MCU, 32KB Flash, 50MHz, 32-HVQFN | NXP
MCF51JF32VFM

MCF51JF32VFM - ColdFire V1 MCU, 32KB Flash, 50MHz, 32-HVQFN | NXP

The NXP MCF51JF32VFM is a ColdFire V1 MCF51Jx 32-bit microcontroller running at up to 50MHz with 32KB of embedded Flash and FlexMemory (configurable EEPROM), housed in a 32-pin HVQFN (5x5 mm) surface-mount package. It integrates I2C, I2S, SPI, UART, USART, and USB connectivity with DMA, low-voltage detect (LVD), power-on reset (POR), PWM, and a watchdog timer, targeting cost-sensitive industrial consumer applications that need true 32-bit performance with 8-bit price points. What is a 32-bit microcontroller? A 32-bit microcontroller is a single-chip computing engine that fetches and executes 32-bit-wide instructions, provides 32-bit ALU operations, and addresses memory through a 32-bit address/data bus. It sits in the part hierarchy of microcontrollers -> microcontrollers/microprocessors -> digital ICs -> semiconductors. Within NXP's portfolio, the MCF51Jx line bridges the gap between the 8-bit S08 family and higher-performance ColdFire V2/V4 devices, giving designers a familiar roadmap with software-compatible peripherals. Key features include a 32KB (32K x 8) program Flash array, CPU speeds up to 50MHz, integrated FlexMemory for configurable EEPROM emulation, USB On-The-Go/Full-Speed device support, and a rich analog/digital peripheral set. ColdFire V1 combines a streamlined instruction set with deterministic interrupt latency, making it well suited for real-time control tasks. The architecture is a Harvard-style ColdFire V1 RISC core with tightly-coupled memories and a peripheral bridge to the chip's peripheral IP blocks. FlexMemory allows designers to allocate part of the Flash array as EEPROM, removing the need for an external serial EEPROM in many parameter-storage applications. Typical applications include USB HID human-interface devices (mouse, keyboard, game controllers), industrial sensor hubs, home appliances, and low-cost point-of-sale peripherals. Its small HVQFN footprint suits dense PCB layouts, while integration of USB plus PWM simplifies bill-of-materials. A key design consideration is the power budget when USB is enabled: configure VBUS sensing and the on-chip regulator per the reference manual to keep suspend current within USB 2.0 limits. This page synthesizes cross-reference intel, distributor pricing, and practical design notes not found in the manufacturer datasheet alone.

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MCF51JM128EVLH - 32-bit ColdFire V1 MCU 128KB Flash | NXP
MCF51JM128EVLH

MCF51JM128EVLH - 32-bit ColdFire V1 MCU 128KB Flash | NXP

The NXP MCF51JM128EVLH is a 32-bit ColdFire V1 core microcontroller running at up to 50 MHz with 128 KB flash memory and 16 KB RAM, housed in a 64-pin LQFP (10x10 mm) surface-mount package. Operating from a single supply of 2.7 V to 5.5 V across an industrial temperature range of -40C to +105C, it belongs to the MCF51JM family within the NXP Flexis microcontroller series. A 32-bit RISC microcontroller combines a processor core, memory, and peripherals on a single IC, sitting above 8-bit MCUs such as the Freescale/NXP S08 family in processing throughput while retaining low power operation. The Flexis series is the connection point on the NXP Controller Continuum where 8-bit S08 and 32-bit V1 ColdFire devices share a common peripheral set and development tools, enabling migration between 8-bit and 32-bit designs without board redesign. Key features include up to 128 KB of flash that can be read, programmed, and erased over the full operating voltage and temperature range, up to 16 KB of RAM with security circuit, four low-power modes, and a highly integrated peripheral set covering USB, serial communication, timers, and analog functions. The 50.33 MHz V1 ColdFire core delivers substantially higher integer throughput than 8-bit peers at comparable power budgets. Architecturally, the ColdFire V1 core is a reduced instruction set computing (RISC) processor derived from the 68K/ColdFire lineage, providing efficient C-code execution and a mature tool ecosystem. The flash security circuit supports code protection for production designs. Typical applications include USB-connected consumer and industrial devices, human-machine interfaces, embedded control systems, and 8-bit-to-32-bit upgrade paths where Flexis pin and peripheral compatibility simplifies migration. Design consideration: note that NXP lists this part as End of Life, so new designs should plan a replacement strategy or secure lifetime-buy inventory. This page synthesizes distributor availability data, verified datasheet specifications, drop-in alternatives, and practical design guidance not found in any single source.

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MCF51JM128VLD - 32-bit ColdFire V1 MCU 128KB Flash | NXP
MCF51JM128VLD

MCF51JM128VLD - 32-bit ColdFire V1 MCU 128KB Flash | NXP

The NXP Semiconductors MCF51JM128VLD is a 32-bit ColdFire V1 RISC microcontroller running at 50 MHz, with 128 KB flash memory, 16 KB RAM, and a 2.7 V to 5.5 V operating supply, housed in a 44-pin LQFP (10x10 mm) package. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, forming the lowest tier of the embedded processing hierarchy: MCU -> embedded processor -> microprocessor -> system-on-chip. The ColdFire V1 core used here is a 32-bit reduced instruction set computing (RISC) architecture derived from the Motorola 68000 lineage, and the MCF51JM family is part of NXP's Flexis series, where 8-bit S08 and 32-bit ColdFire V1 devices share common peripherals and development tools for seamless migration. Key features include flash read/program/erase across the full operating voltage and temperature range, a memory security circuit protecting the 16 KB RAM, four serial communication interfaces, and operation from -40C to +105C. The wide 2.7 V to 5.5 V supply range allows direct connection to 3.3 V or 5 V systems without level shifting, a significant advantage over 1.8 V to 3.6 V-only modern MCUs. Architecturally, the V1 core executes ColdFire instructions at up to 50.33 MHz and is supported by the Flexis Controller Continuum, meaning code and peripheral configurations port easily between MCF51 and MC9S08 family members. Integrated peripherals reduce external component count in cost-sensitive designs. Typical applications include industrial control panels, USB-enabled consumer devices, building automation nodes, and motor control front ends, where a 5 V-tolerant 32-bit MCU with ample flash simplifies the bill of materials. When designing in, note the part's End of Life status: new designs should evaluate Flexis-compatible migration paths, while existing designs should secure last-time-buy inventory. This page synthesizes distributor pricing data, drop-in same-family alternatives, and EOL replacement guidance not found in a single manufacturer document.

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MCF51JM32EVLH - ColdFire V1 32KB Flash MCU 64-LQFP | NXP
MCF51JM32EVLH

MCF51JM32EVLH - ColdFire V1 32KB Flash MCU 64-LQFP | NXP

The NXP MCF51JM32EVLH is a ColdFire V1 32-bit RISC microcontroller integrating 32KB of Flash, 16KB of RAM, and a full-speed USB OTG controller in a 64-pin LQFP (10x10 mm) package. It is part of the MCF51JM family and runs at up to 50MHz, providing deterministic interrupt handling for industrial and embedded USB peripherals. A microcontroller (MCU) is a single-chip computer that contains a processor core, program and data memory, and programmable I/O peripherals. The ColdFire V1 core is a 32-bit variable-length RISC architecture derived from the original 68000 instruction set, optimized for embedded control. Within the broader taxonomy, the MCF51JM32EVLH sits as: microcontroller -> 32-bit MCU -> ColdFire V1 MCU -> USB-enabled MCU -> industrial control MCU. This ultra-low-power heritage makes it well suited for cost-sensitive industrial and consumer designs that need USB connectivity without a dedicated PHY. Key features include 32KB of on-chip Flash program memory, 16KB of SRAM, 51 general-purpose I/O pins, and an integrated USB On-The-Go (OTG) full-speed controller with on-chip transceiver - eliminating the need for an external USB PHY. Communication peripherals include one CAN module, I2C, SCI (UART), and SPI. The device also integrates a low-voltage detect (LVD) circuit, PWM timers, and a watchdog timer for robust operation in noisy industrial environments. The ColdFire V1 core uses a 2-stage pipeline and VBR (vector base register) interrupt structure that simplifies deterministic real-time response. The integrated USB OTG controller supports host, device, and On-The-Go roles, with dedicated DMA channels that offload packet handling from the core. The 64-LQFP (10x10 mm) package exposes all peripherals with no internal multiplexing conflicts, supporting JTAG/BDM debug. Typical applications include USB HID peripherals, industrial CAN-to-USB bridges, point-of-sale terminals, USB barcode scanners, low-cost human-interface devices, and embedded data loggers. The combination of USB OTG and CAN is rare at this price point, making the part attractive for industrial gateways. When designing with this device, allocate a 1.5kB USB stack in Flash and reserve the dedicated USB VBUS/VREG pins for proper OTG operation. The part is no longer recommended for new designs (NRND) - check NXP lifecycle notices before committing to long-production designs.

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MCF51JM32EVLK - 32KB Flash ColdFire V1 MCU | NXP | USB & CAN
MCF51JM32EVLK

MCF51JM32EVLK - 32KB Flash ColdFire V1 MCU | NXP | USB & CAN

The NXP MCF51JM32EVLK is a 32-bit ColdFire V1 RISC microcontroller featuring 32KB Flash, 16KB SRAM, and integrated USB On-The-Go (OTG) plus CAN connectivity, packaged in an 80-pin LQFP (14x14 mm). It operates up to 50 MHz from a 3.3V or 5V supply, providing 66 general-purpose I/O lines, PWM, LVD, and a watchdog timer. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and peripheral interfaces into one device. The MCF51JM32 belongs to the 32-bit ColdFire family, which sits in the hierarchy of embedded microcontrollers (MCU -> 32-bit MCU -> ColdFire architecture -> industrial/consumer-grade MCU -> semiconductor IC). ColdFire V1 combines a RISC instruction set with the Freescale/NXP peripheral ecosystem, easing migration from legacy HC08/HCS08 designs. Key differentiating features include the integrated USB OTG controller with on-chip transceiver - eliminating external PHY chips for low- and full-speed USB designs - and a CAN 2.0A/B-compliant controller targeting industrial networking. The 50 MHz core delivers 50 MIPS, with hardware multiply/accumulate and a background debug controller for non-intrusive in-circuit development. The architecture combines a ColdFire V1 core with crossbar switch, 32KB program Flash, 16KB SRAM, and a versatile peripheral set: SCI, SPI, I2C, PWM (6 channels), 12-bit ADC (8-ch), and a real-time counter. The on-chip voltage regulator supports 2.7V-5.5V single-supply operation with internal 1.8V core regulation, simplifying board design. Typical applications include USB peripherals, CAN-based industrial nodes, point-of-sale terminals, medical monitoring devices, and USB-CAN bridges. The integrated USB OTG makes the part a strong fit for HID devices, CDC virtual COM ports, and firmware upgrade dongles. When designing with this part, ensure the USB DP/DM traces are 90-ohm differential with a common-mode choke nearby; route the 12 MHz crystal traces short and guard them with a ground ring to meet USB compliance. The internal regulator requires a 1uF decoupling capacitor on the VDDINT pin.

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MCF51JM32VLK - 50.33 MHz 32-Bit ColdFire MCU | NXP
MCF51JM32VLK

MCF51JM32VLK - 50.33 MHz 32-Bit ColdFire MCU | NXP

The NXP MCF51JM32VLK is a 32-bit single-core ColdFire V1 microcontroller rated up to 50 MHz, with 32 KB of flash and 16 KB of RAM in an 80-LQFP 14 mm × 14 mm package. It operates across a 2.7 V to 5.5 V supply range and supports an industrial temperature range of -40°C to +105°C. The VLK ordering code identifies the 80-LQFP package, while the family is positioned for embedded control applications requiring compatibility with common S08 and ColdFire peripherals and development tools. A microcontroller is a programmable system-on-chip that combines a processor core, memory, and peripherals such as timers, serial interfaces, analog inputs, communication modules, and interrupt controllers. The MCF51JM32VLK belongs to the ColdFire V1 microcontroller hierarchy and uses 32-bit RISC-style processing for embedded control. Its Flexis family context is important because the devices share peripherals and tools with related S08 products, supporting migration paths between 8-bit and 32-bit designs. The part provides 32 KB of flash for program storage and 16 KB of RAM for working data. Its flash memory is specified for read, program, and erase operation over the full operating voltage and temperature range. The 50 MHz maximum frequency provides processing headroom for protocol handling, control loops, and system coordination, while the 80-LQFP package exposes the device's integrated peripheral and I/O resources through 80 terminals. The MCF51JM family includes four security circuits according to the retrieved technical data, but individual security-feature details and exact peripheral mappings were not provided in the verified snippets. Applications can use the MCU for industrial control, embedded communication, sensor monitoring, and compact embedded systems. Firmware developers should confirm the complete peripheral list, pin multiplexing, clock configuration, memory map, and electrical limits in the official NXP documentation before schematic capture. For PCB design, reserve all 80 package lands, connect the required power and ground pins according to the official pinout, and route decoupling close to the device. The 2.7 V to 5.5 V range allows integration with common embedded supply rails, but clock, reset, analog, and interface voltage constraints must still be checked. This page distinguishes verified catalog values from parameters requiring confirmation from the complete manufacturer datasheet.

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MCF51JM32VQH - 32-Bit 50MHz ColdFire MCU, 32KB Flash | NXP
MCF51JM32VQH

MCF51JM32VQH - 32-Bit 50MHz ColdFire MCU, 32KB Flash | NXP

The NXP Semiconductors MCF51JM32VQH is a 32-bit ColdFire V1 reduced-instruction-set-computing microcontroller with a 50 MHz maximum frequency, 32 KB flash memory, 16 KB RAM, and a 64-pin QFP package measuring 14 mm by 14 mm. The device is associated with the MCF51JM series and supports 3.3 V and 5 V supply configurations shown in the verified product data. Its 32-bit architecture, embedded flash, and integrated peripherals make it suitable for embedded control systems requiring more processing capability than an 8-bit microcontroller while retaining a straightforward peripheral-oriented design. A microcontroller is a compact integrated circuit containing a processor core, memory, and peripherals for controlling a specific embedded system. The MCF51JM belongs to the ColdFire family of 32-bit RISC microprocessors and is positioned within NXP's Flexis MCU ecosystem. The Flexis approach links compatible 8-bit S08 and 32-bit ColdFire V1 families through shared peripherals and development tools, helping designers migrate designs while adapting software and pin requirements to the selected device. The verified specifications identify a 32-bit data bus, ColdFire V1 core, 50 MHz operating frequency, 32 KB flash organized as 32K x 8, and 16 KB RAM. The 64-QFP package provides 64 external pins and a 14 mm by 14 mm body. The supplied product information does not specify the complete peripheral list, GPIO count, supply-voltage minimum and maximum, operating-temperature range, or package thermal resistance, so those values remain marked for data completion rather than being inferred. MCF51JM devices are used for embedded-control and peripheral-coordination functions. Potential designs include industrial controllers, communication equipment, data-acquisition systems, and compact motor or machine-control products when the firmware and board requirements match the MCF51JM peripheral configuration. The 32-bit core and 50 MHz frequency support more demanding control logic than an 8-bit MCU, while the integrated flash and RAM allow firmware and working data to reside locally in the system. When designing around the MCF51JM32VQH, verify the exact pin assignments, alternate-function multiplexing, clock configuration, memory organization, and electrical limits against the manufacturer datasheet before PCB routing. Because the MCU is marked End of Life by the NXP product page, new production decisions should include a lifecycle review, availability check, and confirmation of any approved successor or redesign path rather than assuming long-term supply. This page combines the verified manufacturer and distributor specifications, lifecycle information, package details, practical sourcing guidance, and documented data gaps. It is intended to support engineering comparison and procurement review while avoiding unsupported claims about electrical limits, peripheral compatibility, or replacement parts.

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MCF51JM64EVLD - Coldfire V1 32-bit MCU 64KB Flash 50MHz | NXP
MCF51JM64EVLD

MCF51JM64EVLD - Coldfire V1 32-bit MCU 64KB Flash 50MHz | NXP

The NXP MCF51JM64EVLD is a Coldfire V1 (MCF51JM) 32-bit microcontroller with 64KB of on-chip FLASH, 50 MHz core speed, and integrated USB OTG, offered in a 44-pin LQFP (10x10 mm) package. It is part of NXP's Freescale legacy Coldfire + USB family targeting cost-sensitive embedded applications requiring host/device USB connectivity. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (FLASH), data memory (RAM), and integrated peripherals such as timers, ADCs, and communication interfaces. The MCF51JM series combines a Coldfire V1 core (a 32-bit variable-length RISC architecture derived from the original Motorola Coldfire) with a USB On-The-Go controller, occupying the role of low-cost USB-capable microcontroller in NXP's broader Coldfire hierarchy (Coldfire V1 -> Coldfire -> 32-bit MCU -> embedded processor -> semiconductor). This positioning makes it a frequent choice for USB peripherals, HID devices, and low-throughput human-interface equipment. Key features of the MCF51JM64EVLD include 64KB (64K x 8) program FLASH, 16KB SRAM, 50 MHz maximum CPU clock, USB OTG full-speed controller, and a peripheral set spanning SCI (UART), SPI, I2C, PWM, LVD (low-voltage detect), and WDT (watchdog timer). The device exposes 33 general-purpose I/O pins and supports industrial temperature operation. The integrated USB OTG PHY eliminates the need for an external transceiver for full-speed (12 Mbps) USB applications. Typical applications include USB HID peripherals (keyboards, mice, game controllers), USB-to-UART bridges, low-cost data loggers, industrial point-of-sale terminals, and educational/development boards where the combination of USB device/host capability and a familiar Coldfire toolchain (CodeWarrior, Eclipse-based GCC) reduces time-to-market. When designing with this device, verify power-rail decoupling (100 nF + 4.7 uF near VDD pins) and place the USB D+/D- traces as a 90-ohm differential pair routed directly to the connector. The internal USB regulator must be configured per the reference manual when using bus-powered designs.

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MCF51JM64EVLK - 32-Bit 50MHz ColdFire MCU | NXP
MCF51JM64EVLK

MCF51JM64EVLK - 32-Bit 50MHz ColdFire MCU | NXP

NXP MCF51JM64EVLK is a 32-bit ColdFire V1 microcontroller rated at 50 MHz, with 64 KB of Flash memory and an 80-pin LQFP package. The verified distributor data also identifies 8 KB of RAM, 66 I/O, and connectivity including CANbus, I2C, SCI, SPI, and USB OTG. It is the EVLK temperature/package variant for the MCF51JM family, a Flexis-series MCU intended to bridge 8-bit S08 designs and 32-bit ColdFire software ecosystems. A ColdFire microcontroller is a 32-bit RISC processor integrated with memory, communication peripherals, timers, and digital I/O. It belongs to the MCU hierarchy: embedded microcontroller, RISC processor, ColdFire V1 core, and Flexis MCU family. The MCF51JM series combines 32-bit processing with peripherals familiar from the S08 family, supporting migration between 8-bit and 32-bit designs while retaining a common development approach. Verified features include a 50 MHz operating speed, 64 KB programmable Flash, 8 KB RAM, 66 I/O, CANbus, I2C, SCI, SPI, and USB OTG. The part also includes LVD, PWM, and WDT peripherals according to the available product data. Its 80-lead square LQFP package provides enough external connections for industrial-control designs that need multiple serial interfaces and discrete digital inputs or outputs. The ColdFire V1 core executes 32-bit RISC instructions, while the integrated communication peripherals connect the MCU to sensors, actuators, and host systems. CANbus supports networked industrial equipment, SPI and I2C support peripheral expansion, SCI supports serial communication, and USB OTG adds a host or device-oriented USB path. The 64 KB Flash provides program storage, while the reported 8 KB RAM supports working memory and data buffering. Typical applications include industrial controllers, building automation equipment, motor-control supervisory systems, communication gateways, data-acquisition units, and USB-connected embedded peripherals. The combination of CANbus, serial interfaces, USB OTG, PWM, watchdog, and low-voltage detection makes the device suitable for equipment requiring both control and communications. Designers should verify the exact pin multiplexing, electrical limits, clock configuration, memory map, and peripheral assignment against the MCF51JM datasheet before layout or firmware commitment. Because the available verified data identifies the part as end-of-life, new production designs should confirm availability and consider an explicitly approved redesign rather than assuming ongoing supply.

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MCF51JM64EVQH - ColdFire V1 32-bit MCU 50MHz 64KB Flash | NXP
MCF51JM64EVQH

MCF51JM64EVQH - ColdFire V1 32-bit MCU 50MHz 64KB Flash | NXP

The NXP MCF51JM64EVQH is a 32-bit ColdFire V1 microcontroller operating at 50 MHz with 64 KB of Flash program memory and 16 KB of RAM, housed in a 64-pin QFP (14 x 14 mm) package. It belongs to the MCF51JM family originally developed by Freescale Semiconductor and now supplied by NXP Semiconductors, and it supports both 3.3 V and 5 V operating supplies. A microcontroller (MCU) is a single integrated circuit that combines a processor core, program memory, data memory, and peripheral functions such as timers, serial interfaces, and analog blocks into one chip. Microcontrollers sit at the heart of embedded systems, controlling everything from consumer appliances to industrial automation equipment. The ColdFire V1 architecture is a 32-bit instruction-set-compatible member of the broader ColdFire microprocessor family, offering an upgrade path from 8-bit MCUs to 32-bit performance without a steep software learning curve. Key features of the MCF51JM64EVQH include the 50 MHz ColdFire V1 RISC core, 64 KB of on-chip Flash organized as 64K x 8, and 16 KB of RAM for data and stack. The dual-supply capability of 3.3 V and 5 V simplifies integration into both legacy 5 V industrial designs and modern 3.3 V systems. The 64-QFP 14 x 14 mm package provides a good balance of I/O count and board area for medium-complexity embedded designs. The JM sub-family integrates USB connectivity alongside standard serial peripherals, positioning it for human interface devices, USB-to-serial bridging, and control panels. The ColdFire V1 core executes compact 32-bit code with deterministic behavior suited to control-loop and communication tasks. Typical applications include USB-enabled industrial controllers, consumer appliance interfaces, motor control panels, and test equipment front ends. A key design consideration is supply selection: operating at 5 V improves noise margin in industrial environments, while 3.3 V operation reduces power dissipation; verify Flash programming and peripheral timing margins at the chosen supply. This page consolidates distributor pricing tiers, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone.

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MCF51JM64VLH - 32-bit ColdFire V1 MCU 64KB Flash | NXP
MCF51JM64VLH

MCF51JM64VLH - 32-bit ColdFire V1 MCU 64KB Flash | NXP

The NXP MCF51JM64VLH is a 32-bit ColdFire V1 microcontroller from the Flexis MCF51JM family, featuring 64KB of Flash memory and 8KB of SRAM in a 64-pin LQFP (10x10 mm) package. The ColdFire V1 core runs at up to 50 MHz and targets applications where 8-bit MCU performance is insufficient but full 32-bit complexity and cost are not justified. The Flexis series is NXP's bridge between the legacy 8-bit S08 architecture and the 32-bit ColdFire V1, with shared peripherals and development tools for seamless migration. A microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory (Flash), data memory (RAM), and programmable peripherals on one die. The ColdFire V1 core is a 32-bit reduced instruction set computing (RISC) architecture introduced by Freescale (now NXP) as a low-cost derivative of the original ColdFire V2. Compared with 8-bit MCUs, a 32-bit ColdFire V1 device provides higher arithmetic throughput and a wider address space while preserving deterministic interrupt behaviour suited to embedded control. Key features of the MCF51JM64VLH include 64KB of on-chip Flash program memory, 8KB of SRAM, an integrated USB 2.0 full-speed device controller, a CAN (Controller Area Network) interface, multiple serial communication modules (SCI, SPI, I2C), a 16-channel 12-bit ADC, timers including PWM and input-capture channels, and a real-time counter with a separate backup power domain. The 64-pin LQFP package exposes multiple GPIO lines and provides sufficient I/O for typical industrial and consumer peripherals. Typical applications for the MCF51JM64VLH include USB-to-UART bridges, low-cost industrial control nodes with CAN connectivity, building automation controllers (thermostats, security panels), human-interface devices (HID) such as custom keyboards and barcode scanners, and consumer appliances requiring a small RTOS-aware 32-bit core. The integrated USB controller makes the device particularly attractive for embedded nodes that must enumerate as a USB device without an external PHY. When designing with this part, verify the supply voltage range against the specific datasheet revision, since the Flexis family traditionally supports 2.7 V to 5.5 V operation. The 64-pin LQFP uses a 0.5 mm pitch which is hand-solderable but requires a PCB with fine-pitch land pattern. For new designs a similar but more recent Kinetis E or Kinetis KE series device is often preferred; the MCF51JM64VLH is primarily a legacy / last-time-buy option.

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MCF51JM64VLK - ColdFire V1 50MHz MCU, 64KB Flash, USB | NXP
MCF51JM64VLK

MCF51JM64VLK - ColdFire V1 50MHz MCU, 64KB Flash, USB | NXP

The NXP MCF51JM64VLK is a 32-bit ColdFire V1 microcontroller with 64KB Flash, 50MHz core speed, integrated USB OTG, and 66 I/O pins housed in an 80-pin LQFP (14x14) package. As a member of NXP's Flexis series, it is pin-compatible with the 8-bit S08 family, enabling a migration path between 8-bit and 32-bit performance without hardware redesign. A microcontroller (MCU) is an integrated circuit containing a processor core, program memory, RAM, and a set of on-chip peripherals. Within the broader semiconductor taxonomy, an MCU belongs to the category of microcontrollers and digital signal controllers, sitting under the larger hierarchy of embedded computing devices. ColdFire V1 represents a streamlined 32-bit architecture that retains the software model and instruction-set style of legacy ColdFire cores while targeting cost-sensitive applications traditionally served by 8-bit parts. Key features of the MCF51JM64VLK include its integrated full-speed USB OTG controller with on-chip transceiver, a multi-channel timer/PWM module, up to 66 general-purpose I/O, CAN, I2C, SCI, and SPI connectivity, and a flexible low-voltage detect (LVD) and watchdog timer. The 64KB Flash program memory supports in-application reprogramming, making field firmware updates straightforward. The 80-pin LQFP package offers ample I/O for human-machine interface, motor control, and USB-connected peripheral designs. The MCF51JM64VLK is built on a 3.3V/5V tolerant process with an on-chip voltage regulator, simplifying system power design. The ColdFire V1 core delivers efficient deterministic interrupt handling and a rich peripheral set in a small code footprint, allowing developers to deploy feature-rich firmware within the 64KB Flash budget. Typical applications include USB human-interface devices such as keyboards, mice, and HID-class peripherals; industrial control nodes requiring CAN connectivity; low-cost home appliances with USB diagnostic ports; and consumer electronics leveraging USB OTG for device/host roles. The 50MHz speed and on-chip USB make it especially attractive for connected embedded nodes. When designing with this device, ensure that the USB D+/D- lines are routed as a 90-ohm differential pair with proper length matching. Place the 12MHz crystal or external clock source within 1cm of the XTAL pins to minimize EMI and jitter, and provide adequate bulk decoupling near each power pin pair. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers select, source, and integrate the MCF51JM64VLK into USB-enabled embedded designs.

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MCF51JM64VQH - ColdFire V1 32-bit MCU, 64KB Flash, 50MHz | NXP
MCF51JM64VQH

MCF51JM64VQH - ColdFire V1 32-bit MCU, 64KB Flash, 50MHz | NXP

The NXP MCF51JM64VQH is a ColdFire V1 MCF51JM microcontroller delivering 50 MHz core performance, 64 KB of on-chip flash, and 8 KB of SRAM in a 64-pin LQFP package (14×14 mm). The MCF51JM family belongs to NXP's Flexis controller continuum where 32-bit ColdFire V1 and 8-bit S08 MCUs share peripheral sets for seamless migration. A microcontroller (MCU) is a single-chip computer integrating a CPU core, program and data memory, peripherals, and I/O. ColdFire V1 is a 32-bit reduced instruction set computing (RISC) architecture derived from the original ColdFire family, optimized for embedded deterministic control with small code size and low power. Within the broader semiconductor taxonomy, the MCF51JM64 belongs to the microcontrollers hierarchy (microcontroller -> 32-bit MCU -> embedded processor -> semiconductor IC). The Flexis positioning is significant: a designer can prototype on a JM device and migrate to an S08 pin-compatible MCU without a full PCB redesign. Key specifications include a 32-bit ColdFire V1 core at 50 MHz, 64 KB flash program memory, 8 KB SRAM, an 8-channel 12-bit ADC, timers (including PWM channels), SPI, I²C, and UART communication peripherals, plus a USB 2.0 Full-Speed (12 Mbps) device/host/on-the-go controller. The 64-pin LQFP package supports industrial-grade -40°C to +105°C operation. The integrated USB controller with on-chip transceiver eliminates external PHY requirements for many USB device applications. Architecturally, the MCF51JM64 uses a Harvard-oriented ColdFire V1 core with a single-cycle 32-bit ALU, hardware multiply/accumulate, and a tightly-coupled peripheral bus. The Flexis shared-peripheral philosophy with the S08 family means the same peripheral IP blocks (ADC, timers, communications modules) appear on both families, allowing identical firmware drivers across 8-bit and 32-bit performance tiers. Typical applications include industrial control and sensor conditioning, building automation and HVAC controllers, USB peripherals such as HID-class human-interface devices, low-end medical instruments, consumer electronics requiring a USB device interface, and small-form-factor embedded control boards. The integrated USB 2.0 FS OTG controller also makes the part suitable for point-of-sale terminals and cable replacement use cases. Designers should note that the MCF51JM family is being maintained primarily for legacy and industrial embedded designs, and lifecycle support should be confirmed against the latest NXP product change notifications. When planning new designs, evaluate the MCF51JM128 (128 KB flash) or Kinetis E series as longer-term alternatives while keeping the JM family in scope for proven, qualified, and stable code reuse. This page synthesizes distributor pricing, parametric comparison, and Flexis migration notes not found in the manufacturer datasheet alone.

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MCF51JU32VHS - 50MHz 32KB Flash MCU | NXP | Embedded
MCF51JU32VHS

MCF51JU32VHS - 50MHz 32KB Flash MCU | NXP | Embedded

NXP Semiconductors MCF51JU32VHS is a 32-bit ColdFire V1 microcontroller operating at 50 MHz, with 32 KB of Flash and USB device and analog capabilities, housed in a 44-MAPLGA package. The device targets low-power embedded applications and consumer electronics. A microcontroller is a semiconductor device that integrates a processor core, memory, peripherals, and communication interfaces into one compact component. Within the product hierarchy, the MCF51JU32VHS belongs to the MCF51Jx microcontroller family and uses the ColdFire V1 architecture. This integration allows embedded systems to execute firmware, acquire analog signals, control external hardware, and communicate with USB devices without requiring several separate discrete components. The verified product information identifies a 32-bit architecture, 50 MHz operating frequency, 32 KB Flash, USB device support, and analog capabilities. Its 44-MAPLGA package provides a compact surface-mount solution for space-constrained designs. The NXP product page identifies the part as active, while distributor listings provide availability, pricing, package, and ordering information. The ColdFire V1 core is intended for embedded control workloads where a 32-bit processor and integrated peripherals can simplify system design. Flash memory stores program code, while the USB device interface can support connected control, configuration, or data-transfer functions. Analog capabilities broaden the device’s usefulness for products that need to interface with sensors or other continuous signals. Typical applications include USB-connected consumer devices, low-power embedded control systems, IoT endpoint controllers, compact instrumentation, and industrial products with a small environmental or industrial temperature-grade requirement. Designers should confirm voltage limits, pin functions, clock requirements, memory-map details, USB electrical requirements, and exposed-pad layout from the official NXP datasheet before releasing a PCB. For a new layout, place required decoupling capacitors close to the supply pins, route sensitive analog and USB signals away from noisy switching paths, and follow the manufacturer’s exposed-pad land pattern. The verified data does not include complete pin names, electrical ratings, or detailed memory organization, so those items must be obtained from the manufacturer datasheet. This product page combines the verified NXP overview, distributor package information, and cross-reference results with engineering guidance for embedded-product evaluation. It is intended to help engineers identify the MCU, assess its core and memory, and plan validation before procurement or PCB release.

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MCF51JU64VHS - 32-bit ColdFire V1 MCU 64KB 50MHz | NXP
MCF51JU64VHS

MCF51JU64VHS - 32-bit ColdFire V1 MCU 64KB 50MHz | NXP

The NXP Semiconductors MCF51JU64VHS is a 32-bit microcontroller based on the ColdFire V1 core, operating at up to 50 MHz with 64 KB of flash memory, in a 44-terminal MAPLGA (5x5 mm) package. It belongs to the ColdFire+ MCF51Jx portfolio, which scales from 32 KB to 256 KB of flash and features FlexMemory configurable embedded EEPROM. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, sitting within the broader hierarchy of embedded processors above bare logic ICs and below full application processors. The MCF51JU64VHS targets embedded control designs that need USB device connectivity and mixed-signal peripherals on a low-pin-count footprint. Key features include a 50 MHz V1 ColdFire core, 64 KB (64K x 8) on-chip flash, voltage operation from 1.71 V to 3.6 V, and an industrial ambient temperature range of -40 C to +105 C. The integrated 12-bit SAR ADC, 12-bit DAC, and analog comparator containing a 6-bit DAC reduce external component count in measurement and control loops. FlexMemory provides configurable embedded EEPROM for data retention without external nonvolatile memory. The ColdFire+ architecture shares a common peripheral set across the MCF51JF, MCF51JU, MCF51QF, MCF51QU, MCF51QH, and MCF51QM families, all of which NXP states are software and pin compatible, maximizing code reuse and shortening development time. Flash write operation is supported across the full 1.71 V to 3.6 V supply range, and the USB module enables device-mode connectivity for HID, CDC, and custom class applications. Typical applications include USB-connected industrial sensors and instrumentation, battery-powered portable devices leveraging the 1.71 V minimum supply, and analog front-end control systems using the 12-bit ADC and DAC combination. The 5x5 mm 44-MAPLGA package suits space-constrained two- and four-layer PCB designs. Designers should note the industrial temperature ceiling of +105 C, which covers most embedded environments but excludes some automotive under-hood positions. Flash write across the full voltage range simplifies battery designs where the rail sags near end of charge. This page synthesizes distributor availability data, the NXP family compatibility statements, and practical drop-in replacement analysis not consolidated on the manufacturer product page.

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MCF51MM128CLK - 32-bit ColdFire V1 MCU, 128KB Flash | NXP
MCF51MM128CLK

MCF51MM128CLK - 32-bit ColdFire V1 MCU, 128KB Flash | NXP

The NXP MCF51MM128CLK is a 32-bit ColdFire V1 microcontroller with 128KB Flash, 50MHz core speed, and an 80-FQFP (12x12) package designed for low-power, high-performance embedded applications. It is a member of the MCF51MM256/128 family targeting ultra-low-power operation, USB connectivity, graphic display support, and high-accuracy measurement in a single 32-bit MCU. A microcontroller (MCU) is a compact integrated circuit containing a processor core, volatile and non-volatile memory, and programmable peripherals designed to execute embedded control firmware. The ColdFire V1 architecture is a 32-bit ISA derived from the original ColdFire lineage optimized for deterministic embedded control and ultra-low-power portable designs, positioning the MCF51MM family within the broader hierarchy of MCU (microcontroller) -> 32-bit MCU -> ColdFire MCU -> low-power metering MCU. The integration of analog peripherals, USB, and LCD/segment display drivers removes the need for external companion chips in handheld metering products. The MCF51MM128CLK integrates 128KB of on-chip Flash, 16KB SRAM, a USB 2.0 full-speed device interface, multiple high-resolution analog-to-digital converters (ADC) for measurement accuracy, segment LCD drivers with support for graphical displays, and a rich set of timers and communication peripherals. The 50.3MHz ColdFire V1 core delivers deterministic performance for simultaneous metering computations, display updates, and USB communication. An integrated voltage regulator supports 2.5V/3.3V operation from a single supply. Architecturally, the device combines a ColdFire V1 core with tightly-coupled analog front-ends designed for energy-metering signal chains. The on-chip Freescale/NXP peripheral set includes differential 16-bit Sigma-Delta ADC channels, programmable gain amplifiers, tamper detection pins, RTC with battery backup domain, and segment LCD drivers suitable for both static and multiplexed glass. The result is a system-on-chip optimized for low-cost metering applications that previously required a discrete MCU plus separate metering ASIC. Typical applications include single-phase and polyphase electricity meters, water/gas/heat meters with battery backup, portable medical metering devices, USB-enabled handheld measurement instruments, and industrial sensor transmitters requiring segmented LCD readouts. The integrated USB FS device and segment LCD driver make it a strong fit for feature-rich metering products. When designing with the MCF51MM128CLK, pay attention to the decoupling network on AVDD and VDD pins, since the high-resolution analog performance depends on low-noise supply rails. Use the NXP CodeWarrior IDE or the newer MCUXpresso toolchain for firmware development. This page synthesizes distributor pricing from DigiKey, drop-in alternatives from the same MCF51MM and Kinetis-E families, and practical design notes not found in the manufacturer datasheet alone, supporting design-in engineers and BOM managers.

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