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NXP Semiconductors MCF51JE256CMB
- Part No.:
- MCF51JE256CMB
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 81-LBGA
- Datasheet:
-
MCF51JE256CMB.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 81MAPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,826
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Product details
Overview
MCF51JE256CMB from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller featuring a 50.33 MHz CPU, 256 KB on-chip Flash, 32 KB RAM, USB On-The-Go interface, and integrated 12-bit ADC/DAC - designed for low-power industrial control, remote sensing, and embedded USB host/device applications.
For engineers reviewing the MCF51JE256CMB datasheet, MCF51JE256CMB pinout, MCF51JE256CMB application, or MCF51JE256CMB equivalent, key selection considerations include its dual-oscillator clock architecture (XOSC1 for TOD, XOSC2 for system/USB), ultra-low-power stop3 mode with 6 µs wake-up, Mini-FlexBus expansion capability, and hardware CRC acceleration for firmware integrity verification.
Technical Context
The MCF51JE256CMB 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 precision trimming (±0.5% to –1% deviation over voltage/temperature) to sustain up to 50 MHz CPU operation.
System-level protection includes COP watchdog with dedicated 1 kHz internal clock source, programmable low-voltage detection with interrupt/reset options, illegal opcode/address fault handling, and per-array Flash block protection. Debug is enabled 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), 32-bit, up to 50.33 MHz at >2.4 V, 40 MHz at >2.1 V, 20 MHz at >1.8 V across –40°C to 105°C |
| Memory | 256 KB Flash (dual 128 KB arrays, read/program/erase during interrupt processing); 32 KB SRAM |
| USB Interface | Dual-role USB OTG 2.0 compliant with on-chip transceiver and 3.3 V regulator; supports control/bulk/interrupt/isochronous transfers |
| Analog Peripherals | 12-bit SAR ADC (12 single-ended channels, operation in stop3 mode); 12-bit DAC with configurable settling time; PRACMP analog comparator |
| Power Management | Two ultra-low-power stop modes; Time-of-Day (TOD) counter with 1/4 sec resolution and up to 64 sec timeout; 6 µs typical wake-up from stop3 |
| Clock Sources | XOSC1 (32.768 kHz crystal/resonator for TOD); XOSC2 (high-frequency crystal for MCG reference); MCG with PLL/FLL and ±0.2% trimming resolution |
| Package & I/O | 104-pin MAPBGA (10 mm × 10 mm); 68 GPIOs + 1 output-only pin; 16 KBI pins; 16 RGPIO pins; dedicated IRO infrared output with high-current sink |
Pinout & Package
104-pin MAPBGA package (10 mm × 10 mm, 0.8 mm pitch). Pin functions validated per Freescale Document Number MCF51JE256 Rev. 4, Section 2.1 and Table 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTD0/BKGD/MS | Background Debug / Master Select | Single-wire BDM debug interface; enables real-time debugging and flash programming without halting CPU execution |
| PTD1/CMPP2/RESET | Comparator Output / Reset Input | Active-low reset input with internal pull-up; also serves as comparator output for PRACMP channel 2 |
| PTD2–PTD7 | USB_ALTCLK, USB_PULLUP(D+), SCL, SDA, TX1, RX1 | Multi-function pins supporting USB alternate clock, D+ pull-up, I²C bus, and SCI1 serial communication |
| PTF0–PTF2 | USB_ID, RX2, TX2 | USB OTG ID detection and SCI2 UART interface; enables role negotiation (host/device) and secondary serial communication |
| PTF6/PTF7 | MOSI1/MISO1 | Primary SPI1 master/slave data lines; support full-duplex transfers with 32-bit FIFO buffer for high-throughput peripheral interfacing |
| PTG0 | SPSCK1 | SPI1 serial clock output; drives external SPI peripherals with programmable polarity and phase (CPOL/CPHA) |
| PTG5/PTG6/PTG7 | FB_RW_b, FB_AD19, FB_AD18 | Mini-FlexBus read/write strobe and address bus lines; enable direct memory-mapped access to external SRAM, flash, or peripherals |
| DACO | Analog Output | 12-bit DAC output pin; provides precise analog voltage generation for sensor calibration, actuator control, or signal synthesis |
Key Features
| Feature | Design Value |
|---|---|
| USB OTG Dual-Role Controller | On-chip transceiver and 3.3 V regulator eliminate external PHY and LDO, reducing BOM cost and board area for portable/embedded USB applications |
| Programmable Delay Block (PDB) | 16-bit counter with 8 trigger outputs synchronized to ADC sampling sequence, enabling precise timing coordination of analog acquisition and digital processing |
| Carrier Modulator Timer (CMT) | Dedicated infrared output (IRO) with carrier generator and modulator for remote control protocols - operates independently in stop3 mode |
| Hardware CRC Engine | Accelerates cyclic redundancy checks for firmware validation and secure boot integrity verification without CPU overhead |
| Rapid General-Purpose I/O (RGPIO) | 16 pins accessible at full CPU clock speed, enabling deterministic bit-banging, high-speed protocol emulation, or real-time I/O response |
Applications
| Industrial Remote Sensor Node | USB-Enabled Embedded HMI |
|---|---|
Use Scenario: Battery-powered environmental monitoring node collecting temperature, humidity, and CO₂ via analog sensors and transmitting data via USB mass storage or CDC ACM class. IC Role / Device Role / Timing Role: Central controller executing sensor acquisition (ADC), signal conditioning (DAC), USB protocol stack, and low-power scheduling (TOD + stop3). Use Value: Integrated USB OTG eliminates need for external USB bridge IC; 6 µs wake-up from stop3 extends battery life while maintaining responsive data logging intervals. |
Use Scenario: Touchscreen-based human-machine interface for factory automation equipment requiring local configuration, firmware updates, and diagnostic data export via USB flash drive. IC Role / Device Role / Timing Role: Host controller managing USB mass storage device enumeration, FAT32 file I/O, and real-time display refresh via RGPIO-driven parallel interface. Use Value: Mini-FlexBus supports direct connection to external display controller; hardware CRC ensures reliable firmware update verification before execution. |
| Low-Power Smart Metering | Infrared Remote Control Hub |
Use Scenario: Utility meter with metrology ASIC interface, tamper detection, and periodic data upload via USB stick or PC connection. IC Role / Device Role / Timing Role: Secure data concentrator performing AES encryption (via software), Flash write protection, and low-voltage brownout recovery (LVD). Use Value: Per-array Flash block protection prevents accidental corruption of critical metering code; PRACMP monitors external tamper switches with stop3 operation. |
Use Scenario: Multi-protocol IR hub learning and retransmitting commands from legacy remotes to modern appliances using NEC, RC-5, or Sony protocols. IC Role / Device Role / Timing Role: IR signal generator using CMT for carrier modulation and TPM for precise pulse-width timing; PRACMP decodes incoming IR bursts. Use Value: Dedicated CMT hardware offloads CPU from real-time IR timing constraints; IRO pin delivers 100 mA sink current for driving high-power IR LEDs directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Kinetis KL27Z128VLH4 | ARM Cortex-M0+ core, 48 MHz max, 128 KB Flash, 16 KB RAM, USB FS device only (no OTG/host) | Lacks USB host capability and Mini-FlexBus; targets simpler USB-peripheral roles with lower power but reduced peripheral flexibility | Select when USB device-only operation suffices and ARM ecosystem compatibility is prioritized over ColdFire toolchain continuity |
| MCF51JM128VLD | ColdFire V1 family, same ISA_C core, 128 KB Flash, 32 KB RAM, identical 100-pin LQFP package footprint and peripheral set except reduced Flash size | Direct functional subset - suitable where 128 KB program space is sufficient and PCB layout reuse is required | Choose for cost-sensitive designs with smaller firmware footprints and existing 100-LQFP board layouts |
Compared with Kinetis KL27Z128VLH4, MCF51JE256CMB offers USB OTG dual-role support and external memory expansion via Mini-FlexBus; compared with MCF51JM128VLD, it doubles Flash capacity and adds 4 additional GPIOs and FB_AD[19:0] address lines for larger external memory mapping.
Availability
MCF51JE256CMB is available at Aetrix Electronics and suitable for industrial remote sensor nodes, USB-enabled embedded HMIs, and low-power smart metering applications requiring stable component supply and long-term lifecycle support.
Supply support for MCF51JE256CMB 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 continues development and support of the ColdFire microcontroller portfolio, emphasizing industrial control, automotive subsystems, and secure connectivity solutions.
The MCF51JE256CMB belongs to the ColdFire V1 family - designed specifically for cost-sensitive, ultra-low-power embedded applications requiring USB connectivity, analog signal processing, and robust real-time control in extended temperature environments.
FAQ
What is the maximum operating frequency of the MCF51JE256CMB under industrial temperature conditions?
The MCF51JE256CMB achieves up to 50.33 MHz at VDD > 2.4 V, 40 MHz at VDD > 2.1 V, and 20 MHz at VDD > 1.8 V across the full –40°C to 105°C ambient temperature range. These frequencies are guaranteed per Freescale Document Number MCF51JE256 Rev. 4, Section 1.
Does the MCF51JE256CMB support USB host functionality, and what external components are required?
Yes, the MCF51JE256CMB supports full USB On-The-Go (OTG) dual-role operation including host mode. It integrates an on-chip transceiver and 3.3 V regulator (VUSB33), eliminating the need for external PHY or LDO. Only a USB connector, ESD protection diodes, and optional VBUS sensing circuitry are required for host implementation.
How does the MCF51JE256CMB manage power in ultra-low-power applications?
The MCF51JE256CMB implements two ultra-low-power stop modes, including stop3 with 6 µs typical wake-up time. Its Time-of-Day (TOD) counter operates independently in stop3 using the ultra-low-power external oscillator, enabling accurate timekeeping and periodic wake-up events without CPU intervention - critical for battery-operated MCF51JE256CMB deployments.
Can the MCF51JE256CMB execute code while programming its Flash memory?
Yes, the MCF51JE256CMB features two independent 128 KB Flash arrays that allow read/program/erase operations on one array while executing code from the other. This enables seamless firmware updates and background programming without interrupting real-time application execution - a confirmed capability documented in the MCF51JE256CMB datasheet Section 1.
What debugging interface does the MCF51JE256CMB provide, and is it compatible with standard tools?
The MCF51JE256CMB integrates a ColdFire DEBUG_Rev_B+ interface with single-wire BDM connection, electrically compatible with S08 family debug modules. It supports real-time debug with 6 hardware breakpoints and on-chip trace buffer - enabling full source-level debugging using standard Freescale/NXP CodeWarrior and compatible third-party debug probes for the MCF51JE256CMB.
MCF51JE256CMB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 81-LBGA
- Series:
- MCF51JE
- Packaging:
- Box
- Product Status:
- Not For New Designs
- 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:
- 48
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCF51JE256CMB FAQ
1.How can I place an order for MCF51JE256CMB through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF51JE256CMB 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 MCF51JE256CMB reliable?
The price and inventory of MCF51JE256CMB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF51JE256CMB is usually 5 days.
3.What payment methods are accepted for MCF51JE256CMB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF51JE256CMB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF51JE256CMB?
MCF51JE256CMB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF51JE256CMB 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 MCF51JE256CMB?
For technical support, including MCF51JE256CMB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF51JE256CMB requirements.
6.How does Aetrix verify that MCF51JE256CMB is sourced from the original manufacturer or authorized distributors?
All MCF51JE256CMB 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 MCF51JE256CMB meets industry standards.
7.What is the process for return or replacement of MCF51JE256CMB?
All MCF51JE256CMB units undergo pre-shipment inspection (PSI). If there is an issue with MCF51JE256CMB, 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 MCF51JE256CMB part is unused and in its original packaging.
Return procedure for MCF51JE256CMB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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