MCF51JE256VMB - 32-Bit 50MHz 256KB MCU | NXP
MPN: MCF51JE256VMB ✗ סוף ייצורMCF51JE256VMB סקירה
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.
חלופות תחליף ישיר עבור MCF51JE256VMB — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם MCF51JE256VMB (אותו גורם צורה וטביעת רגל) — שונים ב RAM Size, Architecture, Connectivity, Package, Supply Voltage.
אין חלופות תואמות Drop-in עבור מוצר זה.
בקשת חלופותMCF51JE256VMB דירוגים מרביים ומאפיינים חשמליים
| Product Type | 32-bit microcontroller |
| CPU Core | ColdFire V1 |
| תדר שעון מקסימלי | 50 MHz |
| Program Memory Size | 256 KB (256K x 8) |
| RAM Size | 32 KB (32K x 8) |
| Number of I/O Pins | 48 |
| מתח אספקה | 2.5 V / 3.3 V |
| Oscillator Type | External |
| מארז | 81-MAPBGA (10 mm x 10 mm) |
| Package Type | 81-LBGA / MAPBGA |
| סוג הרכבה | Surface Mount |
| Connectivity | USB |
| Analog Measurement | High-resolution ADC and DAC modules |
| Program Memory Type | Flash |
| Architecture | 32-bit ColdFire RISC |
| Device Family | MCF51JE256/128 |
| Packaging | Tray |
| Manufacturer | Freescale Semiconductor / NXP Semiconductors |
מדריך תצורת פינים של MCF51JE256VMB 81-lbga / mapbga
תצורת פינים עבור MCF51JE256VMB (מארזת 81-lbga / mapbga). מעגל משולב דיגיטלי זה כולל GPIO, ממשקי תקשורת (UART, SPI, I2C) ופיני מתח. יש לעיין בגיליון הנתונים של היצרן לפונקציות פינים חלופיות ולאפשרויות תצורה. חיוני לתכנון מערכות משובצות ולפריסת PCB.
אין נתוני פריסת פינים מפורטים עבור MCF51JE256VMB.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
MCF51JE256VMB מתאים עבור 6 יישוםs: USB-Connected Embedded Control, Industrial Data Acquisition, USB Monitoring Device, Low-Power Embedded Instrument, Compact Consumer Electronics, External Clock-Based Embedded System.
USB-Connected Embedded Control
The MCF51JE256VMB fits USB-connected control products because the verified family information identifies USB connectivity alongside a 50 MHz 32-bit ColdFire V1 processor. Its 256 KB of Flash provides room for application firmware, while 32 KB of RAM supports control state and data handling. The MCU can sit between a USB interface and an embedded control subsystem, reducing the need for separate logic devices. The 81-MAPBGA package also helps compact designs, although fine-pitch assembly and USB signal integrity require careful PCB validation.
מומלץ
Industrial Data Acquisition
The MCF51JE256VMB is suitable for industrial measurement systems that combine control and acquisition in a compact embedded design. Its 48 I/O pins provide external interface capacity, while the verified family description references high-resolution ADC and DAC modules. Engineers can use the MCU to digitize sensor inputs, process control logic, and drive calibrated outputs. The 2.5 V / 3.3 V listing supports low-voltage embedded systems, but the exact analog input range, sampling behavior, reference voltage, and timing limits must be taken from the official data sheet before designing the analog front end.
מומלץ
USB Monitoring Device
The MCF51JE256VMB can support USB monitoring products that combine local control with host communication. Its 50 MHz ColdFire V1 core provides processing capacity for sampling, state management, and communication firmware, while the 256 KB Flash capacity helps hold application code. The device is appropriate when a product needs one MCU to manage measurements and present data over USB. Designers should budget flash for protocol and update functions and should verify USB electrical requirements, power states, and connector implementation using the manufacturer documentation.
מומלץ
Low-Power Embedded Instrument
The MCF51JE256VMB is relevant to low-power embedded instruments because the MCF51JE256/128 family is described as an energy-efficient solution in the verified manufacturer information. The 32-bit core can manage sampling, local calculations, and USB data exchange while the integrated Flash and RAM reduce the need for external memory. Low-power performance still depends on the selected operating modes, peripheral configuration, clocking scheme, and firmware strategy. Confirm low-power mode current and wake-up behavior in the official data sheet before making battery-life claims.
מומלץ
Compact Consumer Electronics
The MCF51JE256VMB can serve compact consumer products that need USB connectivity, measurement, and embedded control in one microcontroller. Its 50 MHz ColdFire V1 processor and 256 KB Flash distinguish it from smaller 8-bit designs, while the 81-MAPBGA package supports space-constrained assemblies when the board can support fine-pitch manufacturing. Product development should account for USB compliance, EMC, thermal behavior, user-interface requirements, and the availability of suitable firmware and production tools.
מומלץ
External Clock-Based Embedded System
The MCF51JE256VMB fits systems that use an external clock source because the verified specifications identify the oscillator type as external. The MCU can therefore be integrated into designs where timing, synchronization, or test requirements call for a controlled external clock. Its 50 MHz maximum listed speed provides a defined performance target, but the actual operating frequency must remain within all electrical timing and peripheral requirements in the data sheet. Validate clock routing, startup sequence, jitter tolerance, and decoupling during schematic and PCB review.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור MCF51JE256VMB — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה |
|---|---|
| Package | 81-MAPBGA (10 mm x 10 mm) |
| Brand | NXP Semiconductors |
| CPU Core | ColdFire V1 |
| Architecture | 32-bit ColdFire RISC |
| Maximum Clock Frequency | 50 MHz |
| Program Memory | 256 KB Flash |
| RAM | 32 KB |
| I/O Pins | 48 |
| Supply Voltage | 2.5 V / 3.3 V |
| Oscillator | External |
| Connectivity | USB |
| Packaging | Tray |
מבדילים עיקריים
- ColdFire V1 32-bit processing with integrated USB connectivity (לעומתMCF51JE256CMB)
- Explicit 81-MAPBGA 10 mm by 10 mm package identification (לעומתMCF51JE256VML)
- Measurement-oriented integration (לעומתMCF51JE256CMB)
הערות תכנון
Use the manufacturer’s exact 81-MAPBGA land pattern and verify ball numbering, pad geometry, solder mask, and assembly tolerances against the package drawing. The package is identified as a 10 mm by 10 mm surface-mount array, so do not substitute a generic BGA footprint based only on ball count. Confirm whether the package includes a thermal or exposed-pad arrangement before releasing the PCB files.
The verified listing identifies 2.5 V / 3.3 V operation, but it does not provide the complete current, regulator, decoupling, or voltage-limit table. Before schematic release, derive the power tree from the official data sheet, calculate the worst-case supply requirement for USB and analog peripherals, and place required bulk and high-frequency decoupling capacitors at the device pins. Check startup and power-sequence requirements against the selected USB implementation.
Do not treat the MCF51JE256 family name as proof that every package suffix is pin-compatible. The retrieved data confirms the VMB device is an 81-MAPBGA, while MCF51JE256CMB and MCF51JE256VML require separate package and pinout verification. Compare ball assignments, voltage domains, peripheral multiplexing, memory organization, and software support before treating any family variant as a replacement.
Because the oscillator type is listed as external, route clock signals with short, controlled paths and keep the clock away from high-current switching nodes where practical. USB traces require continuous reference-plane support, controlled impedance, minimized stubs, and careful connector and protection-device placement. The supplied data does not specify USB routing values, so use the applicable USB implementation guidance and validate with signal-integrity simulation and measurements.
מידע על תאימות
The supplied verified results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred.
