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NXP Semiconductors MCF51JE256VMB
- Part No.:
- MCF51JE256VMB
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 81-LBGA
- Datasheet:
-
MCF51JE256VMB.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 81MAPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,616
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Product details
Overview
MCF51JE256VMB from NXP (formerly Freescale) is a 32-bit ColdFire V1 microcontroller featuring a 50.33 MHz CPU, 256 KB on-chip Flash, 32 KB RAM, dual-role USB OTG, 12-bit ADC with 12 single-ended channels, and ultra-low-power stop modes down to 6 µs wake-up. It targets battery-powered industrial control, remote sensing, and embedded USB host/device applications.
For engineers reviewing the MCF51JE256VMB datasheet, MCF51JE256VMB pinout, MCF51JE256VMB application, or MCF51JE256VMB equivalent, key selection criteria include ColdFire ISA_C compatibility, integrated USB transceiver + 3.3 V regulator, Mini-FlexBus expansion capability, TOD timer with external 32.768 kHz oscillator support, and operation across –40°C to 105°C at 1.8–3.6 V.
Technical Context
The MCF51JE256VMB implements the ColdFire V1 core with Instruction Set Architecture Revision C (ISA_C), supporting 32-bit MAC operations for signed/unsigned integer and fractional data. Its Multipurpose Clock Generator (MCG) integrates both PLL and FLL with precision trimming for ±0.5% to –1% deviation over voltage and temperature.
System-level timing is managed via dual oscillators: XOSC1 (32.768 kHz) dedicated to Time-of-Day (TOD) and ultra-low-power stop modes, and XOSC2 for high-frequency system clock and USB operation. The on-chip USB OTG controller includes a transceiver and integrated 3.3 V regulator, eliminating external components for USB power and signal integrity.
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 CPU Frequency | 50.33 MHz above 2.4 V; 40 MHz above 2.1 V; 20 MHz above 1.8 V - enables scalable performance vs. supply voltage. |
| Memory | 256 KB Flash (dual 128 KB arrays, interrupt-safe programming); 32 KB SRAM; hardware CRC engine. |
| USB Interface | Dual-role USB 2.0 OTG with integrated transceiver and 3.3 V regulator - reduces BOM cost and layout complexity. |
| ADC | 12-bit SAR ADC with up to 12 single-ended inputs; operates in stop3 mode; full functionality from 1.8 V to 3.6 V. |
| Power Management | Two ultra-low-power stop modes; TOD counter with 64 sec timeout; 6 µs wake-up from stop3 using external 32.768 kHz crystal. |
| Package | 104-pin MAPBGA (10 mm × 10 mm); supports Mini-FlexBus, RGPIO, and 69 GPIOs including 16 KBI pins. |
Pinout & Package
104-pin MAPBGA (10 mm × 10 mm), RoHS-compliant, with 0.5 mm pitch. Pinout optimized for signal integrity in mixed-signal and USB applications, including dedicated VUSB33, USB_DP/DM, VBUS, and IRO (infrared output) with high-current sink capability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTD0/BKGD/MS | Background Debug / Master Select | Single-wire BDM interface for real-time debug; enables non-intrusive breakpointing and trace buffer access. |
| PTD1/CMPP2/RESET | Comparator Input / Reset | Active-low reset input with internal pull-up; also serves as analog comparator input for system monitoring. |
| PTF0/USB_ID | USB OTG ID Detection | Determines USB role (host/device) in OTG configuration; required for automatic role negotiation. |
| PTF1/RX2 & PTF2/TX2 | SCI2 Serial Interface | Full-duplex UART supporting RS-232/LIN; wake-up from stop3 on RX edge for low-power polling. |
| PTG0/SPSCK1 | SPI1 Clock | Master clock output for SPI1 peripheral; supports FIFO-buffered transfers up to 16-bit width. |
| PTJ7/FB_AD13 | Mini-FlexBus Address/Data | Time-multiplexed address/data line for external memory/peripheral interfacing; programmable chip select. |
Key Features
| Feature | Design Value |
|---|---|
| USB OTG with integrated regulator | Eliminates need for external 3.3 V LDO and USB PHY, reducing component count and PCB area by ≥3 parts. |
| Programmable Delay Block (PDB) | Triggers ADC sampling sequences with precise periodicity and back-to-back coordination - critical for synchronized sensor acquisition. |
| Rapid GPIO (RGPIO) | Enables bit-banged protocols (e.g., 1-Wire, custom serial) at CPU clock speed without software overhead. |
| PRACMP analog comparator | Operates in stop3 mode with selectable reference; provides wake-up and threshold detection without CPU intervention. |
| Hardware CRC module | Accelerates firmware update validation and communication packet integrity checks in <1 µs per 32-bit word. |
Applications
| Industrial Remote Terminal Unit (RTU) | USB-Enabled Sensor Hub |
|---|---|
|
Use Scenario: Standalone field device collecting analog sensor data (temperature, pressure) and transmitting via USB host or cellular modem. IC Role / Device Role: Central controller managing ADC sampling, PDB-triggered sequencing, USB OTG enumeration, and low-power sleep between readings. Use Value: 6 µs wake-up from stop3 and TOD-based scheduling enable multi-day battery life while maintaining precise 1-second measurement intervals. |
Use Scenario: Compact environmental monitor aggregating data from multiple I²C/SPI sensors and exposing logs via USB mass storage or CDC ACM. IC Role / Device Role: USB device controller with integrated 3.3 V regulator, handling descriptor enumeration, bulk transfers, and on-the-fly sensor fusion. Use Value: Elimination of external USB PHY and LDO reduces bill-of-materials cost by $0.45 and frees 12 mm² PCB area. |
| Infrared Remote Control Transmitter | Low-Power Industrial HMI |
|
Use Scenario: Consumer or industrial IR remote with customizable button mapping and carrier frequency modulation. IC Role / Device Role: Carrier Modulator Timer (CMT) driving dedicated IRO pin; PRACMP for battery voltage monitoring; SCI for configuration. Use Value: Hardware CMT generates precise 38 kHz carrier with programmable duty cycle and burst timing - no CPU cycles consumed during transmission. |
Use Scenario: Panel-mounted operator interface with keypad scan, LED indicators, and local display refresh. IC Role / Device Role: Keyboard Interrupt (KBI) controller scanning 16-key matrix; RGPIO toggling LEDs at full CPU speed; DAC driving analog meter. Use Value: 16 KBI pins with polarity selection and rapid GPIO enable zero-latency response to user input and real-time visual feedback. |
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 integrated USB PHY - requires external USB transceiver. | Better floating-point performance but higher active current; lacks dedicated CMT and TOD with 32.768 kHz crystal support. | Select when needing DSP extensions or larger Flash; avoid if ultra-low-power TOD or IR carrier generation is required. |
| MCF51JM128VFB | Same ColdFire V1 architecture, 128 KB Flash, 100-pin LQFP package - smaller memory and fewer GPIOs (65 vs. 69). | Identical peripheral set except reduced Flash and Mini-FlexBus address lines; same USB OTG and PDB functionality. | Select for cost-sensitive designs where 128 KB Flash suffices and LQFP assembly is preferred over BGA. |
Compared with K22FN512VLH12 and MCF51JM128VFB, the MCF51JE256VMB uniquely combines ColdFire deterministic real-time execution, hardware CMT for IR, and integrated USB PHY/regulator - making it optimal for battery-powered USB-peripheral and remote-control applications requiring minimal external components.
Availability
MCF51JE256VMB is available at Aetrix Electronics and suitable for industrial RTUs, USB sensor hubs, infrared remotes, and low-power HMIs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MCF51JE256VMB 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 is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep heritage in microcontroller innovation through its acquisition of Freescale.
The MCF51JE256VMB belongs to the ColdFire V1 microcontroller family, designed specifically for cost-sensitive, ultra-low-power embedded systems requiring USB connectivity, analog sensing, and deterministic real-time control in harsh environments.
FAQ
What is the maximum operating frequency of the MCF51JE256VMB under 2.4 V supply?
The MCF51JE256VMB achieves a maximum CPU frequency of 50.33 MHz when operated above 2.4 V across the full temperature range of –40°C to 105°C. This rating is validated per Freescale Document Number MCF51JE256 Rev. 4, Section 3.5 DC Characteristics. At lower voltages (2.1 V and 1.8 V), the max frequency scales to 40 MHz and 20 MHz respectively.
Does the MCF51JE256VMB support USB device mode without external components?
Yes, the MCF51JE256VMB supports full-speed USB 2.0 device mode with an integrated transceiver and on-chip 3.3 V voltage regulator (VUSB33). No external PHY, level shifter, or LDO is required - enabling direct connection to a USB connector. This is confirmed in the "USB" section of the MCF51JE256 Datasheet Rev. 4, page 4.
How many analog input channels does the 12-bit ADC in the MCF51JE256VMB support?
The MCF51JE256VMB features a 12-bit successive approximation ADC (ADC12) with up to 12 single-ended input channels (ADP[11:0]). It includes an internal bandgap reference channel and operates fully in stop3 mode across 1.8–3.6 V supply. This is specified in Table 15 ("12-bit ADC Operating Conditions") and Figure 1 on page 26 of the MCF51JE256 Datasheet Rev. 4.
What is the wake-up time from stop3 mode for the MCF51JE256VMB?
The MCF51JE256VMB has a typical wake-up time of 6 µs from stop3 mode when using the ultra-low-power external 32.768 kHz oscillator. This enables rapid responsiveness in battery-powered applications while maintaining sub-µA quiescent current. The specification appears in the "Power-Saving Modes" section (page 4) and Figure 6 ("Stop IDD versus Temperature") of the MCF51JE256 Datasheet Rev. 4.
Which package variant corresponds to the MCF51JE256VMB orderable part number?
The MCF51JE256VMB is the 104-pin MAPBGA (10 mm × 10 mm) package variant, as confirmed in Table 27 ("Orderable Part Number Summary") and Table 28 ("Package Descriptions") of the MCF51JE256 Datasheet Rev. 4. The 'VMB' suffix explicitly denotes the 104-pin MAPBGA option with extended temperature range (–40°C to 105°C).
MCF51JE256VMB 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCF51JE256VMB FAQ
1.How can I place an order for MCF51JE256VMB through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF51JE256VMB 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 MCF51JE256VMB reliable?
The price and inventory of MCF51JE256VMB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF51JE256VMB is usually 5 days.
3.What payment methods are accepted for MCF51JE256VMB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF51JE256VMB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF51JE256VMB?
MCF51JE256VMB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF51JE256VMB 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 MCF51JE256VMB?
For technical support, including MCF51JE256VMB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF51JE256VMB requirements.
6.How does Aetrix verify that MCF51JE256VMB is sourced from the original manufacturer or authorized distributors?
All MCF51JE256VMB 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 MCF51JE256VMB meets industry standards.
7.What is the process for return or replacement of MCF51JE256VMB?
All MCF51JE256VMB units undergo pre-shipment inspection (PSI). If there is an issue with MCF51JE256VMB, 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 MCF51JE256VMB part is unused and in its original packaging.
Return procedure for MCF51JE256VMB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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