NXP Semiconductors MCF51JF128VHS
- Part No.:
- MCF51JF128VHS
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 44-VFLGA Exposed Pad
- Datasheet:
-
MCF51JF128VHS.pdf
- Description:
- IC MCU 32BIT 128KB FLSH 44MAPLGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MCF51JF128VHS from NXP Semiconductors (formerly Freescale) is a ColdFire V1-based 32-bit microcontroller with 128 KB flash, 44-pin Laminate QFN package, operating from 1.71–3.6 V across –40°C to 105°C ambient. It integrates USB On-The-Go, 12-bit ADC/DAC, hardware cryptographic acceleration (CAU), and 10 low-power modes - deployed in industrial motor control, smart metering, and battery-powered HMI systems.
For engineers reviewing the MCF51JF128VHS datasheet, MCF51JF128VHS pinout, MCF51JF128VHS application, or MCF51JF128VHS equivalent, key selection criteria include its 50 MHz ColdFire core performance (0.99 DMIPS/MHz from flash), integrated USB transceiver, FlexNVM/FlexRAM memory architecture, and support for rapid wake-up from VLLS3 mode (<92 µs).
Technical Context
The MCF51JF128VHS implements a ColdFire V1 CPU core with Dhrystone 2.1 benchmark performance of 0.99 DMIPS/MHz when executing from flash and 1.10 DMIPS/MHz from RAM. Its clock system includes dual crystal oscillators (1 kHz–32 MHz range options) and a multipurpose clock generator (MCG) supporting FEI, FBE, and BLPE modes.
Power management features include 10 configurable low-power modes, a low-leakage wakeup unit (LLWU), and voltage regulator (VREG); analog subsystem comprises a 12-bit SAR ADC, 12-bit DAC, analog comparator with 6-bit DAC, and hardware CRC/RNG modules - all validated for operation across the full –40°C to 105°C industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ColdFire V1 32-bit RISC CPU, up to 50 MHz system clock |
| Flash Memory | 128 KB program flash with FlexNVM capability for EEPROM emulation |
| Operating Voltage | 1.71 V to 3.6 V - supports single-supply operation in battery-powered and wide-input industrial systems |
| Temperature Range | –40°C to +105°C ambient - qualified for under-hood automotive and industrial control environments |
| Digital I/O Pins | Up to 48 EGPIO pins with programmable drive strength and digital/analog filtering |
| USB Interface | Full/low-speed USB On-The-Go controller with integrated transceiver - enables host/peripheral role switching without external PHY |
| Analog Peripherals | 12-bit SAR ADC (16-channel), 12-bit DAC, analog comparator with 6-bit DAC reference, and voltage reference (VREF) |
| Security Modules | Hardware CRC engine, random number generator (RNGB), and cryptographic acceleration unit (CAU) for AES/DES/SHA |
Pinout & Package
Package: 44-pin Laminate QFN (5 mm × 5 mm), exposed thermal pad, RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply and ground | Primary 1.71–3.6 V domain; decoupling required per datasheet layout guidelines |
| VDDA, VSSA | Analog power supply and ground | Separate analog rail with ≤0.1 V differential vs. VDD - critical for ADC/DAC accuracy |
| EXTAL, XTAL | External crystal oscillator inputs | Supports 1–32 MHz crystals; used with MCG for precise clock generation |
| USB_DP, USB_DM | USB differential data lines | Integrated transceiver eliminates need for external USB PHY; supports full/low-speed OTG |
| PTA0–PTA31, PTB0–PTB15, etc. | Multi-function GPIO (EGPIO/RGPIO) | Configurable as digital I/O, timer channels, UART/SPI/I2C signals, or touch sensor inputs (TSI) |
| ADC0_SE0–ADC0_SE15 | Analog input channels | 16-channel 12-bit SAR ADC with programmable gain and conversion triggers |
| RESET_b | Active-low reset input | Accepts 0–VDD logic; internal pullup; supports external reset supervisor integration |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Cryptographic Acceleration (CAU) | Offloads AES-128/256, DES, SHA-1/256 operations - reduces firmware overhead and improves secure boot latency |
| FlexNVM/FlexRAM Architecture | Enables field-upgradable EEPROM emulation and configurable RAM partitioning - simplifies data logging and OTA update design |
| Low-Power Wakeup Unit (LLWU) | Allows selective pin-triggered exit from VLLS1/VLLS2/VLLS3 modes with sub-100 µs recovery - essential for ultra-low-duty-cycle sensing |
| Integrated USB Transceiver | Eliminates external PHY components and associated layout complexity - reduces BOM cost and PCB area in portable diagnostics tools |
| Touch Sensor Interface (TSI) | Hardware-accelerated capacitive touch sensing on up to 16 channels - enables robust, low-power HMI without dedicated touch controller |
| Programmable Delay Block (PDB) | Synchronizes ADC conversions with PWM edges - critical for high-precision motor current sampling in field-oriented control |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
Use Scenario: Closed-loop control of BLDC/PMSM motors in HVAC compressors and pump drives using FOC algorithms. IC Role / Device Role / Timing Role: Main controller executing real-time motor control loops, managing PWM generation via FTM modules, and sampling phase currents via synchronized ADC+PDB. Use Value: 50 MHz ColdFire core delivers deterministic timing for 20 kHz PWM carrier; hardware CAU secures firmware updates; VLLS3 mode enables <1 µA sleep current during idle periods. | Use Scenario: Revenue-grade electricity meter with tamper detection, communication (PLC/RF), and secure data storage. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, RTC, secure crypto for tariff encryption, and dual-interface communication (UART + USB). Use Value: Integrated 12-bit ADC with programmable gain supports shunt/CT-based current sensing; FlexNVM provides reliable, wear-levelled nonvolatile storage for billing logs; USB OTG enables field technician configuration. |
| Battery-Powered HMI | Industrial PLC I/O Module |
Use Scenario: Handheld diagnostic tool with capacitive touch buttons, LCD interface, and USB configuration port. IC Role / Device Role / Timing Role: Primary MCU handling TSI-based touch detection, SPI-driven display refresh, and USB device-mode communication with PC host. Use Value: Low-leakage TSI module achieves <5 µA active touch-scan current; integrated USB transceiver removes external PHY; 10 low-power modes extend battery life beyond 12 months on coin cell. | Use Scenario: DIN-rail mounted remote I/O module converting analog sensor inputs (4–20 mA, 0–10 V) to Modbus TCP over Ethernet. IC Role / Device Role / Timing Role: Edge processor acquiring analog inputs via 12-bit ADC, performing linearization/filtering, and interfacing to external MAC/PHY via Mini-FlexBus. Use Value: Mini-FlexBus supports 25 MHz synchronous parallel interface to Ethernet controllers; hardware CRC ensures integrity of Modbus frame transmission; -40°C to 105°C rating guarantees operation in unconditioned control cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Kinetis K22F51212 | ARM Cortex-M4 core (120 MHz), 512 KB flash, no integrated USB transceiver - requires external PHY | Lacks native USB OTG; higher performance but larger footprint (64-LQFP) and higher active current | Select when needing >50 MHz deterministic processing or DSP extensions; avoid if USB device-mode simplicity is critical. |
| MCF52259 | ColdFire V2 core (140 MHz), 512 KB flash, 100-pin LQFP, no FlexNVM - legacy part with discontinued status | Higher performance but obsolete; lacks VLLS3 mode and modern crypto acceleration (CAU) | Only for legacy redesigns requiring pin-compatible ColdFire upgrade; not recommended for new designs. |
Compared with K22F51212 and MCF52259, the MCF51JF128VHS offers optimal balance of USB integration, ultra-low-power stop modes (VLLS3 @ 1.8–3.3 µA), and ColdFire software compatibility - making it uniquely suited for cost-sensitive, battery-aware industrial edge nodes where USB configuration and secure firmware updates are mandatory.
Availability
MCF51JF128VHS is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, battery-powered HMI, and PLC I/O modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MCF51JF128VHS 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.
The MCF51JF128VHS belongs to NXP's ColdFire V1 microcontroller family, designed specifically for cost-optimized, low-power industrial control and human-machine interface applications requiring integrated USB, analog peripherals, and robust security features.
FAQ
What is the maximum operating frequency of the MCF51JF128VHS core?
The MCF51JF128VHS ColdFire V1 core operates at up to 50 MHz system clock frequency. This is confirmed in the datasheet Table 8 (Device clock specifications) under "Normal run mode" for fSYS. The core achieves 0.99 DMIPS/MHz when executing from flash memory, delivering ~49.5 DMIPS total performance - sufficient for real-time motor control and protocol stack execution.
Does the MCF51JF128VHS include an integrated USB transceiver?
Yes, the MCF51JF128VHS includes a full/low-speed USB On-The-Go controller with an on-chip transceiver. As stated in the Features section, this eliminates the need for external USB PHY components. The USB_DP and USB_DM pins connect directly to the USB connector, supporting both host and peripheral roles - a key differentiator versus many ARM-based alternatives requiring external PHYs.
What low-power modes are supported by the MCF51JF128VHS?
The MCF51JF128VHS supports 10 distinct low-power modes, including VLLS1, VLLS2, VLLS3, LLS, VLPS, STOP, and WAIT. Datasheet Table 4 specifies VLLS3 wakeup time as ≤92 µs, and Table 5 lists VLLS3 current as low as 1.8 µA at –40°C to 25°C. These modes are managed via the low-leakage wakeup unit (LLWU) and voltage regulator (VREG), enabling aggressive power optimization in battery-powered applications.
Is the MCF51JF128VHS qualified for automotive under-hood applications?
The MCF51JF128VHS is rated for –40°C to +105°C ambient temperature and meets industrial qualification standards. While not AEC-Q100 certified, its extended temperature range, EMC radiated emissions compliance (IEC 61967-2), and robust ESD ratings (±2000 V HBM) make it suitable for non-safety-critical automotive under-hood applications such as body control modules and HVAC actuators - provided system-level validation confirms compliance with vehicle-specific requirements.
What memory types are integrated in the MCF51JF128VHS?
The MCF51JF128VHS integrates 128 KB of program flash memory, FlexNVM (for EEPROM emulation), FlexRAM (configurable as RAM or EEPROM), and standard SRAM. As documented in the "Memories and memory interfaces" feature list, this architecture enables flexible data storage strategies - for example, using FlexNVM to store calibration tables with wear leveling, while reserving SRAM for real-time variables. The EzPort serial programming interface supports in-system programming.
MCF51JF128VHS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 44-VFLGA Exposed Pad
- Series:
- MCF51Jx
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- Coldfire V1
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- EBI/EMI, I2C, SPI, UART/USART, USB OTG
- Peripherals:
- DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 31
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 9x12b; D/A 1x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCF51JF128VHS FAQ
1.How can I place an order for MCF51JF128VHS through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF51JF128VHS 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 MCF51JF128VHS reliable?
The price and inventory of MCF51JF128VHS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF51JF128VHS is usually 5 days.
3.What payment methods are accepted for MCF51JF128VHS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF51JF128VHS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF51JF128VHS?
MCF51JF128VHS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF51JF128VHS 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 MCF51JF128VHS?
For technical support, including MCF51JF128VHS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF51JF128VHS requirements.
6.How does Aetrix verify that MCF51JF128VHS is sourced from the original manufacturer or authorized distributors?
All MCF51JF128VHS 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 MCF51JF128VHS meets industry standards.
7.What is the process for return or replacement of MCF51JF128VHS?
All MCF51JF128VHS units undergo pre-shipment inspection (PSI). If there is an issue with MCF51JF128VHS, 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 MCF51JF128VHS part is unused and in its original packaging.
Return procedure for MCF51JF128VHS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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