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NXP Semiconductors MCF51JF32VFM
- Part No.:
- MCF51JF32VFM
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MCF51JF32VFM.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,699
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Product details
Overview
MCF51JF32VFM from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller with 32 KB flash, 1.71–3.6 V operation, -40°C to 105°C ambient range, and integrated USB OTG controller - deployed in industrial control panels requiring deterministic real-time response and low-power sleep modes.
For engineers reviewing the MCF51JF32VFM datasheet, MCF51JF32VFM pinout, MCF51JF32VFM application, or MCF51JF32VFM equivalent, key selection criteria include its 50 MHz V1 ColdFire core performance (0.99 DMIPS/MHz from flash), 10 low-power modes including VLLS3 (1.8–3.3 µA at 3.0 V), and QFN-32 (5 mm × 5 mm) package compatibility with space-constrained embedded designs.
Technical Context
The MCF51JF32VFM implements a ColdFire V1 CPU core with Dhrystone 2.1 benchmarking at 0.99 DMIPS/MHz when executing from flash memory and supports up to 50 MHz system clock frequency. Its power architecture includes a voltage regulator (VREG), low-leakage wakeup unit (LLWU), and 10 configurable low-power modes - enabling sub-microamp stop-mode operation while retaining RAM and peripheral state.
Clock generation relies on dual crystal oscillators (1 kHz–32 MHz range options) and a multipurpose clock generator (MCG) supporting FEI, FBE, and BLPE modes. Memory subsystem integrates 32 KB flash, FlexNVM, FlexRAM, and RAM, with EzPort serial programming and Mini-FlexBus external interface for expansion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ColdFire V1 32-bit CPU, up to 50 MHz - delivers deterministic real-time execution with 0.99 DMIPS/MHz from flash |
| Flash Memory | 32 KB - sufficient for compact firmware images with integrated bootloader and field-upgrade capability |
| Operating Voltage | 1.71 V to 3.6 V - supports single-supply battery-powered or wide-input industrial power rails |
| Temperature Range | -40°C to +105°C - qualified for under-hood automotive, motor drives, and industrial PLC environments |
| USB Interface | Full/low-speed On-The-Go controller with on-chip transceiver - enables host/peripheral role switching without external PHY |
| Low-Power Modes | 10 modes including VLLS3 (1.8 µA typical at 3.0 V, –40°C to 25°C) - extends battery life in always-on sensor nodes |
| Analog Peripherals | 12-bit SAR ADC, 12-bit DAC, analog comparator with 6-bit DAC, and voltage reference - supports closed-loop analog control without external signal conditioning |
Pinout & Package
Package: 32-pin QFN (5 mm × 5 mm), exposed pad, RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital supply and ground | Primary power domain for core, peripherals, and I/O; requires local 100 nF decoupling per VDD pin |
| VDDA, VSSA | Analog supply and ground | Isolated analog domain for ADC/DAC/CMP; must be separated from digital planes with ferrite bead or L-section filter |
| EXTAL, XTAL | External crystal oscillator inputs | Supports 1 MHz–32 MHz crystals; internal load capacitors configurable via registers - eliminates external caps in many cases |
| USB_DP, USB_DM | USB differential data lines | Integrated transceiver enables direct connection to USB connector; no external termination or ESD protection required for basic compliance |
| PTA0–PTA7, PTB0–PTB7, PTC0–PTC7, PTD0–PTD7 | Programmable GPIO (EGPIO) | Up to 48 pins with configurable drive strength, slew rate, pullup/pulldown, and digital/analog glitch filtering - supports robust HMI and sensor interfacing |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CRC module | Accelerates checksum calculation for firmware integrity verification and communication frame validation - reduces CPU overhead by >95% vs. software CRC |
| Hardware RNG (RNGB) | Provides cryptographically secure random numbers for key generation and challenge-response protocols - meets NIST SP 800-90A requirements |
| Cryptographic acceleration unit (CAU) | Offloads AES-128/256, DES, SHA-1/256 operations - enables secure boot and OTA updates with <10 ms latency per 16-byte AES block |
| Low-power touch sensing (TSI) | Capacitive touch interface with hardware charge-transfer measurement - supports up to 16 self-capacitance channels with <5 µA active current |
| Programmable delay block (PDB) | Synchronizes ADC sampling, PWM updates, and DAC output with sub-microsecond precision - essential for motor phase current sensing and commutation |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
|
Use Scenario: Brushless DC motor drive in HVAC blower systems with field-oriented control (FOC) and real-time current feedback. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing six-step PWM via FTM modules, and sampling three-phase currents via 12-bit ADC with PDB-triggered synchronization. Use Value: 50 MHz ColdFire core ensures <5 µs loop time for 20 kHz PWM carrier; VLLS3 mode (<3.3 µA) enables rapid wake-on-demand from standby without losing rotor position state. |
Use Scenario: DIN-rail mounted electricity meter with tariff switching, tamper detection, and optical/IR communication. IC Role / Device Role / Timing Role: System-on-chip handling metrology calculations (via ADC oversampling), RTC-based billing intervals, secure firmware updates via CAU, and I²C interface to external metrology ASIC. Use Value: Integrated 12-bit DAC generates precise reference voltages for anti-tamper analog monitoring; hardware CRC validates meter configuration tables during power-up. |
| Medical Patient Monitor Front-End | Automotive Body Control Module (BCM) |
|
Use Scenario: Portable vital sign monitor acquiring ECG, SpO₂, and temperature with battery-backed operation. IC Role / Device Role / Timing Role: Signal acquisition hub using TSI for button interface, 12-bit ADC for analog sensor conditioning, and USB OTG for clinical data export to host PC. Use Value: Single-chip integration eliminates external ADC/DAC/USB PHY - reduces BOM count by 7 components; VLPR mode (0.63 mA at 3.0 V) extends 2000 mAh battery life to >72 hours continuous operation. |
Use Scenario: Door module managing window lift, mirror adjustment, and interior lighting with LIN bus communication. IC Role / Device Role / Timing Role: Low-voltage supervisor and actuator driver coordinator using LLWU for wake-on-keypress, FTM for PWM-controlled motor speed, and UART with Smart Card support for diagnostic access. Use Value: 10 low-power modes enable <2.8 µA VLLS1 current - meets ISO 11898-3 quiescent current requirements for always-connected automotive modules. |
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-M4F core, 120 MHz, 512 KB flash, no integrated USB transceiver (requires external PHY) | Better floating-point performance for advanced filtering; lacks native USB device/host dual-role capability | Select when floating-point math or larger code footprint dominates over USB OTG convenience and power efficiency |
| MCF51JM32VFM | Same ColdFire V1 core and pinout, but adds CAN 2.0B controller and removes USB OTG | Targeted at CAN-based industrial networks (e.g., DeviceNet, J1939); incompatible with USB-dependent host interfaces | Select for CAN-centric architectures where USB is unnecessary and CAN protocol stack integration is prioritized |
Compared with K22F51212 and MCF51JM32VFM, the MCF51JF32VFM uniquely balances USB OTG functionality, ultra-low-power stop modes (VLLS3), and ColdFire deterministic timing - making it optimal for battery-powered human-interface devices requiring plug-and-play host connectivity without sacrificing sleep current.
Availability
MCF51JF32VFM is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, medical patient monitors, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MCF51JF32VFM 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 full technical support, documentation, and long-term supply commitment for the ColdFire portfolio.
The MCF51JF32VFM belongs to the ColdFire J-series microcontrollers designed for cost-sensitive, low-power industrial and automotive applications requiring real-time determinism, mixed-signal integration, and robust EMC performance.
FAQ
What is the maximum operating frequency of the MCF51JF32VFM core?
The MCF51JF32VFM features a ColdFire V1 core rated for up to 50 MHz system clock frequency. This is confirmed in Section 5.3 of the official datasheet (Rev. 7, 03/2015), where fSYS is specified as ≤50 MHz in normal run mode. Performance remains stable across the full -40°C to +105°C temperature range and 1.71–3.6 V supply voltage.
Does the MCF51JF32VFM support USB device and host functionality simultaneously?
Yes, the MCF51JF32VFM integrates a full/low-speed USB On-The-Go (OTG) controller with an on-chip transceiver, enabling dynamic role switching between device and host modes without external components. This capability is explicitly documented in the "Communication interfaces" section of the MCF51JF128 datasheet, which applies to all members of the JF family including MCF51JF32VFM.
What package type is used for the MCF51JF32VFM?
The MCF51JF32VFM uses a 32-pin QFN package with 5 mm × 5 mm body size and exposed thermal pad (package identifier "FM"). This is defined in Section 2.3 of the datasheet, where "PP = Package identifier" lists "FM = 32 QFN (5 mm x 5 mm)" as the valid option for the MCF51JF32 variant.
How much flash memory does the MCF51JF32VFM contain?
The MCF51JF32VFM contains 32 KB of on-chip flash memory, as indicated by the "MMM" field in its part number format (where "32" denotes 32 KB program flash). This is consistent across all documentation, including the ordering guide and memory subsystem description in Section 6.4 of the MCF51JF128 datasheet.
What are the lowest-power operating modes supported by the MCF51JF32VFM?
The MCF51JF32VFM supports 10 low-power modes, with VLLS3 (Very Low-Leakage Stop Mode 3) offering the lowest active current: 1.8 µA typical at 3.0 V and -40°C to 25°C ambient. This mode retains RAM, selected registers, and the LLWU, enabling wake-on-external-interrupt with sub-100 µs latency - verified in Table 5 of the datasheet under IDD_VLLS3.
MCF51JF32VFM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- MCF51Jx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- Coldfire V1
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, SPI, UART/USART, USB OTG
- Peripherals:
- DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 22
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 6x12b; D/A 1x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
MCF51JF32VFM FAQ
1.How can I place an order for MCF51JF32VFM through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF51JF32VFM 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 MCF51JF32VFM reliable?
The price and inventory of MCF51JF32VFM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF51JF32VFM is usually 5 days.
3.What payment methods are accepted for MCF51JF32VFM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF51JF32VFM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF51JF32VFM?
MCF51JF32VFM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF51JF32VFM 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 MCF51JF32VFM?
For technical support, including MCF51JF32VFM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF51JF32VFM requirements.
6.How does Aetrix verify that MCF51JF32VFM is sourced from the original manufacturer or authorized distributors?
All MCF51JF32VFM 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 MCF51JF32VFM meets industry standards.
7.What is the process for return or replacement of MCF51JF32VFM?
All MCF51JF32VFM units undergo pre-shipment inspection (PSI). If there is an issue with MCF51JF32VFM, 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 MCF51JF32VFM part is unused and in its original packaging.
Return procedure for MCF51JF32VFM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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