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NXP Semiconductors MCF51JE256VLK
- Part No.:
- MCF51JE256VLK
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MCF51JE256VLK.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 80FQFP
- Quantity:
- Payment:
- Shipping:
Inventory:480
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Product details
Overview
MCF51JE256VLK from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller featuring a 256 KB flash memory, 32 KB RAM, USB On-The-Go interface, 12-bit ADC with 12 single-ended channels, and dual 4-channel Timer/PWM modules. It operates up to 50.33 MHz at 2.4 V and supports industrial temperature range (−40°C to +105°C). Used in embedded control systems requiring integrated analog peripherals, low-power operation, and USB connectivity.
For engineers reviewing the MCF51JE256VLK datasheet, MCF51JE256VLK pinout, MCF51JE256VLK application, or MCF51JE256VLK equivalent, key selection criteria include its dual-oscillator clock architecture (XOSC1 for TOD, XOSC2 for system/USB), ultra-low-power stop3 mode with 6 µs wake-up, on-chip 12-bit DAC and PRACMP analog comparator, and Mini-FlexBus expansion capability for external memory interfacing.
Technical Context
The MCF51JE256VLK implements the ColdFire Instruction Set Revision C (ISA_C) with 32-bit MAC support for signed/unsigned integer and fractional arithmetic. Its Multipurpose Clock Generator (MCG) integrates PLL and FLL with internal reference trimming (0.2% resolution, ±0.5% to −1% deviation over voltage/temperature), enabling precise CPU clock synthesis up to 50 MHz.
System-level protection includes COP watchdog with dedicated 1 kHz internal clock option, low-voltage detection with interrupt/reset selectable trip points, illegal opcode/address detection, per-array flash block protection, and hardware CRC acceleration. Debug is supported via single-wire BDM interface compliant with S08 family debug modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ColdFire V1 (ISA_C); executes 32-bit instructions with MAC unit for real-time signal processing. |
| Max Operating Frequency | 50.33 MHz above 2.4 V; enables high-throughput control loop execution in motor or power conversion applications. |
| Flash Memory | 256 KB (dual 128 KB arrays); supports concurrent read/program/erase and interrupt handling during flash programming. |
| RAM | 32 KB system RAM with security circuitry to prevent unauthorized access to runtime data. |
| ADC | 12-bit SAR ADC with 12 single-ended inputs; operates down to 1.8 V and in stop3 mode for low-power sensing. |
| USB Interface | Dual-role USB OTG (device/host/OTG); includes on-chip transceiver and 3.3 V regulator, eliminating external PHY components. |
| Power Modes | Two ultra-low-power stop modes; stop3 supports TOD counter, external oscillator, and wake-up on Rx edge or KBI pins. |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTD0/BKGD/MS | Background Debug / Master Select | Single-wire BDM debug interface; enables real-time debugging without halting CPU execution. |
| PTD1/CMPP2/RESET | Comparator Input / Reset | Active-low reset input with internal pull-up; also serves as analog comparator input for system monitoring. |
| PTD2–PTD7 | SCI1 Signals (TX1/RX1/ALTCLK/PULLUP) | Full SCI1 UART interface with USB_ALTCLK and D+ pull-up; supports RS-232/LIN and USB device enumeration. |
| PTF0–PTF2 | USB_ID / RX2 / TX2 | USB OTG role detection (ID pin) and secondary SCI2 interface; enables dual serial + USB host/device coexistence. |
| PTC0–PTC1 | SPI2 MOSI/MISO | Secondary SPI master/slave interface with double-buffered transmit/receive; supports daisy-chain sensor networks. |
| PTA0–PTA3 | Port A GPIO / SS1 / ADP[5:4] | Configurable general-purpose I/O with slave select for SPI1 and analog input multiplexing for ADC channel selection. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Delay Block (PDB) | Triggers ADC sampling sequences with 16-bit counter and 8 programmable outputs; enables synchronized multi-channel acquisition. |
| Carrier Modulator Timer (CMT) | Integrated infrared output driver (IRO pin) with carrier generator/modulator; eliminates external IR encoder ICs in remote control designs. |
| Mini-FlexBus Interface | User-programmable chip selects and address/data multiplexing; supports direct connection to SRAM, NOR flash, or FPGA peripherals. |
| Voltage Reference Output (VREFO) | Stable on-chip reference for external ADCs or precision analog circuits; reduces BOM cost and layout complexity. |
| Rapid GPIO (RGPIO) | 16 pins accessible at full CPU clock speed; enables deterministic bit-banging protocols (e.g., 1-Wire, custom serial) without timer overhead. |
Applications
| Industrial Motor Control | USB-Enabled Data Logger |
|---|---|
|
Use Scenario: Closed-loop BLDC motor drive with current sensing, PWM generation, and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating center-aligned PWM via TPM modules, and sampling ADC channels at precise intervals using PDB triggers. Use Value: Integrated 12-bit ADC, dual TPM modules with edge/center-aligned PWM, and 50 MHz CPU enable sub-microsecond timing resolution for high-efficiency commutation. |
Use Scenario: Battery-powered environmental sensor node logging temperature, humidity, and pressure to SD card via SPI, with USB mass storage interface for data retrieval. IC Role / Device Role / Timing Role: System-on-chip managing sensor I²C reads, SD card FAT32 writes, and USB MSC class enumeration and bulk transfers. Use Value: On-chip USB OTG transceiver and 3.3 V regulator eliminate external PHY; stop3 mode with 6 µs wake-up extends battery life between sensor reads. |
| Remote-Controlled HVAC Panel | Medical Patient Monitor Front-End |
|
Use Scenario: Wall-mounted HVAC interface with IR remote reception, display backlight control, and fan speed regulation. IC Role / Device Role / Timing Role: IR signal decoder via CMT/IRO, PWM-driven LED backlight dimming, and keyboard interrupt scanning for button matrix. Use Value: Dedicated CMT hardware offloads IR demodulation from CPU; 16 KBI pins support large keypad arrays without external interrupt expanders. |
Use Scenario: Portable vital signs monitor acquiring ECG, SpO₂, and respiration signals with analog front-end conditioning and local display. IC Role / Device Role / Timing Role: Analog signal acquisition hub using PRACMP for lead-off detection, 12-bit ADC for digitization, and DAC for calibration offset correction. Use Value: On-chip PRACMP with programmable reference and 12-bit DAC allow real-time analog integrity checks and sensor calibration without external op-amps or DACs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Kinetis K22FN512VLH12 | ARM Cortex-M4 core, 120 MHz, 512 KB flash, no on-chip USB PHY (requires external transceiver), no CMT or IRO pin. | Better floating-point performance but lacks integrated IR modulation and requires external USB components. | Select when higher CPU throughput and DSP extensions are required; avoid if IR remote support or USB component count reduction is critical. |
| MCF51JM128VLK | Same ColdFire V1 architecture, 128 KB flash, identical pinout and peripheral set except reduced flash size and no DACO pin. | Direct software-compatible drop-in for cost-sensitive designs where 128 KB flash suffices and DAC is unused. | Choose for legacy design migration or BOM cost optimization where DAC functionality is not needed. |
Compared with K22FN512VLH12 and MCF51JM128VLK, the MCF51JE256VLK uniquely combines ColdFire V1 deterministic real-time execution, integrated USB PHY, and dedicated IR modulation hardware-making it optimal for cost-constrained, low-power, USB+IR embedded systems where ARM migration introduces layout and component overhead.
Availability
MCF51JE256VLK is available at Aetrix Electronics and suitable for industrial motor control, USB-enabled data loggers, remote-controlled HVAC panels, and medical patient monitor front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MCF51JE256VLK includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors acquired Freescale in 2015 and maintains the ColdFire portfolio for industrial and automotive embedded applications requiring deterministic real-time performance and long-term supply stability.
The MCF51JE256VLK belongs to the ColdFire V1 microcontroller family, designed specifically for cost-sensitive, low-power industrial control systems integrating mixed-signal peripherals, USB connectivity, and robust system-level protection features.
FAQ
What is the maximum operating frequency of the MCF51JE256VLK and under what voltage conditions?
The MCF51JE256VLK achieves up to 50.33 MHz when supplied above 2.4 V, 40 MHz above 2.1 V, and 20 MHz above 1.8 V across the full industrial temperature range (−40°C to +105°C). These specifications are confirmed in Section 3.10 of the Rev. 4 datasheet and reflect guaranteed operation-not typical or nominal values.
Does the MCF51JE256VLK support USB On-The-Go functionality, and what hardware components are integrated?
Yes, the MCF51JE256VLK supports full USB On-The-Go (OTG) in device, host, and OTG configurations. It integrates an on-chip USB transceiver, 3.3 V regulator (VUSB33), and USB ID/DP/DM pins-eliminating the need for external PHY or LDO components in most USB implementations.
How many analog-to-digital converter (ADC) channels does the MCF51JE256VLK provide, and what is their resolution and operating range?
The MCF51JE256VLK includes a 12-bit successive approximation ADC (ADC12) with up to 12 single-ended input channels. It operates fully from 3.6 V to 1.8 V supply and remains functional in stop3 low-power mode, as specified in Table 15 and Figure 8 of the Rev. 4 datasheet.
What debug interface does the MCF51JE256VLK use, and is it compatible with standard development tools?
The MCF51JE256VLK uses the ColdFire DEBUG_Rev_B+ interface with single-wire BDM connection, electrically compatible with S08 family debug modules. It supports real-time debugging with 6 hardware breakpoints and an on-chip trace buffer-enabling full visibility into MCF51JE256VLK execution without CPU halting.
What packaging options are available for the MCF51JE256VLK, and which one corresponds to the 'VLK' suffix?
The 'VLK' suffix denotes the 100-pin LQFP package (14 mm × 14 mm). Other variants include 'VLF' (80-pin LQFP), 'VLH' (104-pin MAPBGA), and 'VLG' (81-pin MAPBGA). Pin assignments for the VLK variant are fully documented in Section 2.2 and Figure 3 of the Rev. 4 datasheet.
MCF51JE256VLK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-LQFP
- Series:
- MCF51JE
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- Coldfire V1
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- EBI/EMI, I2C, SCI, SPI, USB OTG
- Peripherals:
- LVD, PWM, WDT
- Number of I/O:
- 47
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 12x12b; D/A 1x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCF51JE256VLK FAQ
1.How can I place an order for MCF51JE256VLK through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF51JE256VLK on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MCF51JE256VLK reliable?
The price and inventory of MCF51JE256VLK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF51JE256VLK is usually 5 days.
3.What payment methods are accepted for MCF51JE256VLK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF51JE256VLK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF51JE256VLK?
MCF51JE256VLK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF51JE256VLK order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MCF51JE256VLK?
For technical support, including MCF51JE256VLK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF51JE256VLK requirements.
6.How does Aetrix verify that MCF51JE256VLK is sourced from the original manufacturer or authorized distributors?
All MCF51JE256VLK products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MCF51JE256VLK meets industry standards.
7.What is the process for return or replacement of MCF51JE256VLK?
All MCF51JE256VLK units undergo pre-shipment inspection (PSI). If there is an issue with MCF51JE256VLK, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MCF51JE256VLK part is unused and in its original packaging.
Return procedure for MCF51JE256VLK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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