MCF51JE256VLK - 32-Bit 50MHz 256KB Flash MCU | NXP
MPN: MCF51JE256VLK ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MCF51JE256VLK Overview
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.
Drop-in alternatives for MCF51JE256VLK — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MCF51JE256VLK (same form factor and footprint) — differing in Connectivity, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesMCF51JE256VLK Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit microcontroller |
| Processor Core | ColdFire V1 |
| Maximum Operating Frequency | 50 MHz |
| Program Memory | 256 KB (256K x 8) Flash |
| Operating Voltage | 2.5 V to 3.3 V |
| Package | 80-pin LQFP, 12 mm x 12 mm |
| Number of I/O | 47 |
| Connectivity | CANbus, USB OTG, EBI/EMI, I2C, SCI, SPI |
| Analog Peripherals | High-resolution ADC and DAC |
| Peripheral Features | LVD, PWM, watchdog timer |
| Core Width | 32-bit |
| Flash Organization | 256K x 8 |
| Terminal Count | 80 |
| Package Code | LFQFP |
| Package Shape | Square |
| Temperature Grade | Industrial |
| Lifecycle Status | End of Life |
MCF51JE256VLK square Pin Configuration Guide
Pin configuration for MCF51JE256VLK (square package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MCF51JE256VLK.
Refer to the datasheet for full pin configuration.
Typical Applications
MCF51JE256VLK is suitable for 6 applications: USB Data-Acquisition Controller, CAN-Based Industrial Monitoring, USB-Connected Control Panel, Embedded Measurement Instrument, Low-Power Peripheral Controller, Embedded Communications Hub.
USB Data-Acquisition Controller
The MCF51JE256VLK fits a USB data-acquisition controller when the product needs local sampling, control logic, and direct USB connectivity in one MCU. Its 32-bit ColdFire V1 core runs up to 50 MHz, while the verified feature set includes high-resolution ADC and DAC modules plus 47 I/O. A practical design would use the MCU for sensor conditioning, control sequencing, data buffering, and USB communication. The main engineering check is firmware resource usage and whether the selected ADC channels and USB mode satisfy the system’s accuracy and update-rate requirements. Because the part is End of Life, long-term availability should be secured before using it in a new instrument platform.
Recommended
CAN-Based Industrial Monitoring
The MCF51JE256VLK is appropriate for an industrial monitoring node that must combine CANbus communication with local digital control and measurement. The verified records identify CANbus, 47 I/O, PWM, low-voltage detection, and a watchdog timer, allowing the device to supervise sensors, indicators, actuators, and system faults in a compact control design. In operation, the MCU can acquire measurements, apply control logic, report status through CAN, and use the watchdog to recover from unexpected software or hardware conditions. The 50 MHz ColdFire V1 core provides processing headroom, but CAN transceiver selection, bus protection, grounding, and timing analysis remain external design responsibilities.
Recommended
USB-Connected Control Panel
MCF51JE256VLK can support a USB-connected control panel where a host computer configures and monitors embedded equipment. Its USB OTG connectivity, 256 KB Flash, 47 I/O, PWM, and serial interfaces provide a foundation for buttons, displays, indicators, sensors, and communication tasks. The MCU can manage local user-interface behavior while presenting a device interface to the host, reducing the need for a separate interface controller. A practical implementation must reserve time and memory for USB firmware, define descriptors and power behavior, and ensure the host software remains compatible with the selected device class. End-of-Life status requires product-lifecycle approval before committing this architecture.
Recommended
Embedded Measurement Instrument
The high-resolution ADC and DAC integration makes MCF51JE256VLK a candidate for compact measurement instruments that need local conversion and digital signal handling. The 32-bit core can manage sampling control, calibration, filtering, display updates, and communications without requiring a separate host processor for every task. Its 47 I/O leaves substantial connection capacity for sensors, references, switches, and status signals, while the 256 KB Flash supports embedded application firmware. The final design should verify actual ADC and DAC resolution, sampling behavior, input ranges, accuracy limits, reference requirements, and analog layout from the official datasheet rather than relying on distributor summaries.
Recommended
Low-Power Peripheral Controller
MCF51JE256VLK is suitable for a low-power peripheral controller when the application benefits from integrated control, USB, serial communications, and local energy-aware operation. The device description emphasizes ultra-low-power operation, while the verified feature list includes USB OTG, I2C, SCI, SPI, PWM, low-voltage detection, and a watchdog. A design can use the MCU to coordinate sensors, power-state transitions, communications, and actuator outputs while retaining a compact 80-LQFP footprint. Actual low-power performance depends on the selected clock, peripheral activity, firmware, and application behavior, so developers should consult the NXP power specifications and measure the complete operating profile.
Recommended
Embedded Communications Hub
The MCF51JE256VLK can serve as a communications hub for equipment that needs USB OTG alongside CANbus, I2C, SCI, and SPI connectivity. Multiple interfaces allow a single MCU to bridge a host connection to sensors, actuators, or another embedded controller while retaining a 50 MHz processing core for protocol management. The integration reduces the number of discrete interface components, but software isolation and bus arbitration must be designed carefully. USB and CAN electrical transceivers are still required because the MCU provides digital peripheral logic rather than complete physical-layer protection. Validate timing, bus loading, isolation, fault recovery, and firmware resource budgets before using the device in a communications product.
Recommended
Recommended Products Summary
Engineering reference data for MCF51JE256VLK — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Package | 80-pin LQFP, 12 mm x 12 mm |
| Brand | NXP Semiconductors |
| Processor Core | ColdFire V1 |
| Architecture | 32-bit |
| Maximum Frequency | 50 MHz |
| Program Memory | 256 KB Flash (256K x 8) |
| Operating Voltage | 2.5 V to 3.3 V |
| Connectivity | CANbus, USB OTG, EBI/EMI, I2C, SCI, SPI |
| Analog Peripherals | High-resolution ADC and DAC |
| I/O Count | 47 I/O |
| Lifecycle Status | End of Life |
Key Differentiators
- Integrated connectivity for embedded systems (vs MCF51JE256VML)
- Measurement-oriented analog integration (vs General-purpose MCU platforms without the same verified feature set)
- Sourcing context must be handled carefully (vs MCF51JE256CMB)
Design Notes
Use a controlled 2.5 V or 3.3 V supply and place the required decoupling capacitors close to the corresponding power pins. Separate or carefully isolate noisy analog and digital supply paths where the board architecture permits. The verified snippets do not provide capacitor values, current limits, or startup timing, so those values must be taken directly from the NXP datasheet rather than estimated.
Plan the 80-pin LQFP footprint with adequate copper for the exposed thermal and electrical requirements and keep USB, clock, and high-speed communication routes short. Maintain continuous return paths under signal pairs and place external protection, transceivers, and connectors away from sensitive MCU pins. The provided records confirm the package and interface set but do not provide a manufacturer land pattern, so use the official package drawing.
Keep USB and communication signals away from switching power inductors, motor outputs, and fast-edge digital nodes. Use a clearly defined ground strategy for analog measurement circuits and avoid routing sensitive analog inputs beneath noisy digital or USB paths. Because the supplied material identifies ADC and DAC capabilities but not their exact electrical limits, validate reference, impedance, and layout requirements against the complete datasheet.
Do not assume that another MCF51JE256 suffix is a drop-in replacement. VLK and VML may represent different package or ordering options, and the supplied evidence does not confirm identical pinout, voltage, or temperature behavior. Also treat the End of Life designation as a sourcing risk: secure inventory, approved alternatives, and firmware validation before committing to a new production release.
Compliance Information
The supplied verified snippets do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. The part is identified as industrial temperature grade in a cross-reference listing, but that does not establish AEC-Q100 qualification.
