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NXP Semiconductors MCF51JU32VHS
- Part No.:
- MCF51JU32VHS
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 44-VFLGA Exposed Pad
- Datasheet:
-
MCF51JU32VHS.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 44MAPLGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,701
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Product details
Overview
MCF51JU32VHS from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller with 32 KB on-chip flash memory, operating up to 50 MHz, supporting industrial temperature range (–40°C to 105°C), 1.71–3.6 V supply, and integrated USB On-The-Go controller - deployed in motor control and smart sensor edge nodes requiring deterministic real-time response and low-power operation.
For engineers reviewing the MCF51JU32VHS datasheet, MCF51JU32VHS pinout, MCF51JU32VHS application, or MCF51JU32VHS equivalent, key selection considerations include its 44-pin Laminate QFN package, 12-bit ADC/DAC pair, FlexNVM support for data logging, and ColdFire DEBUG_Rev_B+ single-wire BDM interface for field firmware updates.
Technical Context
The MCF51JU32VHS implements the ColdFire V1 core with Dhrystone 2.1 performance of 0.99 DMIPS/MHz when executing from flash and includes a multipurpose clock generator (MCG) supporting FEI, FBE, and BLPE modes. Its system architecture integrates four-channel DMA, Mini-FlexBus for external memory expansion, and EzPort for serial programming.
Power management features ten low-power modes including VLLS1–VLLS3, with sub-μA stop-mode current (e.g., 1.4–2.6 μA at –40°C to 25°C in VLLS1), enabled by low-leakage wakeup unit (LLWU) and voltage regulator (VREG). Analog subsystem comprises 12-bit SAR ADC, 12-bit DAC, analog comparator with 6-bit DAC, and voltage reference (VREF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ColdFire V1 32-bit CPU, 50 MHz max - enables deterministic real-time execution for motor control loops and protocol stacks. |
| Flash Memory | 32 KB program flash + FlexNVM - supports over-the-air firmware updates and data logging with wear leveling. |
| Supply Voltage | 1.71 V to 3.6 V - compatible with single-cell Li-ion, 3.3 V logic rails, and energy-harvesting power sources. |
| Temperature Range | –40°C to 105°C ambient - qualified for under-hood automotive, industrial PLC, and outdoor IoT deployments. |
| USB Interface | Full/low-speed USB On-The-Go with on-chip transceiver - eliminates external PHY, enabling host/peripheral dual-role connectivity. |
| Analog Peripherals | 12-bit ADC (16-channel), 12-bit DAC, analog comparator with 6-bit DAC - supports closed-loop analog signal conditioning without external converters. |
| Low-Power Modes | 10 modes including VLLS1–VLLS3; VLLS1 current = 1.4–2.6 μA (–40°C to 25°C) - extends battery life in always-on sensor nodes. |
Pinout & Package
Package: 44-pin Laminate QFN (5 mm × 5 mm), exposed thermal pad, RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply and ground | Decoupling required per datasheet layout guidelines; supports 1.71–3.6 V operation with internal regulation. |
| VDDA, VSSA | Analog power supply and ground | Must be isolated from digital planes; differential tolerance ±0.1 V vs. VDD ensures ADC/DAC accuracy. |
| EXTAL/XTAL | External crystal oscillator inputs | Supports 1 kHz–32 MHz crystals; enables precise timing for USB, RTC, and communication baud rates. |
| USB_DP/USB_DM | USB differential data lines | On-chip transceiver eliminates external PHY; requires 27 Ω series termination per line per USB spec. |
| PTA0–PTA31, PTB0–PTB15 | Programmable EGPIO pins | Up to 48 configurable I/Os with programmable pull-ups/downs (22–50 kΩ); support interrupt, PWM, and touch sensing. |
| RESET | Active-low reset input | Accepts 0–VDD+0.3 V; internal POR/LVD circuitry provides reliable startup and brownout recovery. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB OTG Controller | Eliminates external transceiver; supports device/host mode via software configuration - reduces BOM cost and PCB area. |
| FlexNVM Memory | Enables EEPROM-emulation and data logging with hardware-assisted wear leveling - extends flash endurance beyond 100k cycles. |
| Low-Leakage Wakeup Unit (LLWU) | Configurable wake sources (pins, LPTMR, RTC) with sub-μA quiescent current - enables responsive wake from deepest sleep states. |
| Hardware CRC Module | Accelerates checksum calculation for firmware integrity verification and communication packet validation - offloads CPU during boot and OTA updates. |
| Touch Sensor Interface (TSI) | Capacitive touch sensing on up to 16 channels with noise immunity - supports human-machine interfaces without external ICs. |
Applications
| Motor Control System | Industrial Data Logger |
|---|---|
|
Use Scenario: Brushless DC motor drive with field-oriented control (FOC) in HVAC blower units. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation via FTM timers, and ADC sampling of phase currents/voltages. Use Value: 50 MHz ColdFire core delivers <1 μs interrupt latency; 12-bit ADC with hardware averaging ensures current measurement resolution ≤0.5% FS. |
Use Scenario: Remote environmental monitoring node logging temperature, humidity, and vibration every 10 seconds. IC Role / Device Role / Timing Role: Sensor interface hub, low-power scheduler, flash-based circular buffer manager, and USB/UART data upload interface. Use Value: VLLS1 mode draws only 1.4–2.6 μA, enabling >5-year battery life on two AA cells; FlexNVM enables robust wear-levelled data storage. |
| Smart Energy Meter | Medical Sensor Node |
|
Use Scenario: DIN-rail mounted electricity meter with tamper detection, harmonic analysis, and secure firmware updates. IC Role / Device Role / Timing Role: High-accuracy metrology front-end controller, secure bootloader, and USB/RS-485 communication gateway. Use Value: 12-bit DAC calibrates shunt-based current sensing; hardware CRC validates firmware images; USB OTG enables field technician reprogramming. |
Use Scenario: Portable patient vital sign monitor measuring ECG, SpO₂, and respiration rate with Bluetooth LE bridge. IC Role / Device Role / Timing Role: Analog signal conditioner, low-noise ADC driver, real-time filtering engine, and USB HID interface for PC diagnostics. Use Value: Integrated 12-bit ADC with programmable gain amplifier achieves ≥80 dB SNR; TSI supports capacitive electrode contact detection. |
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 throughput but higher active power (≈12 mA @ 120 MHz vs. 14.3 mA @ 50 MHz for MCF51JU32VHS) | Select for computationally intensive DSP tasks; avoid if USB PHY integration and ultra-low sleep current are critical. |
| MCF51JM32VFP | Same ColdFire V1 core, 32 KB flash, but 32-pin QFN (5×5 mm) and no USB OTG - only UART/SPI/I²C interfaces | Limited peripheral set; lacks USB, FlexNVM, and full analog subsystem (no 12-bit DAC or TSI) | Choose for space-constrained cost-sensitive designs where USB and advanced analog features are unnecessary. |
Compared with Kinetis K22F51212 and MCF51JM32VFP, the MCF51JU32VHS uniquely balances ColdFire deterministic real-time behavior, integrated USB transceiver, sub-μA stop modes, and full analog capability - making it optimal for resource-constrained, mixed-signal edge devices requiring field-upgradable connectivity.
Availability
MCF51JU32VHS is available at Aetrix Electronics and suitable for industrial motor control, smart metering, and portable medical instrumentation requiring stable component supply across extended product lifecycles.
Supply support for MCF51JU32VHS 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 and supply chain support for the ColdFire portfolio, emphasizing industrial reliability, long-term availability, and automotive-grade quality systems.
The MCF51JU32VHS belongs to the ColdFire JU-series - designed specifically for cost-sensitive, low-power embedded applications demanding rich analog integration, USB connectivity, and deterministic real-time performance in harsh environments.
FAQ
What is the maximum operating frequency of the MCF51JU32VHS?
The MCF51JU32VHS supports a maximum system and core clock frequency of 50 MHz in normal run mode, as specified in the device's switching electrical specifications. This frequency is achievable with appropriate clock source configuration (e.g., MCG in FEI or FBE mode) and stable 1.71–3.6 V supply. The MCF51JU32VHS maintains full peripheral functionality-including USB, ADC, and timers-at this speed, validated across the full –40°C to 105°C temperature range.
Does the MCF51JU32VHS include an integrated USB transceiver?
Yes, the MCF51JU32VHS integrates a full/low-speed USB On-The-Go controller with an on-chip transceiver, eliminating the need for an external PHY. This is confirmed in the "Communication interfaces" section of the MCF51JU128 datasheet (Rev. 5, 03/2015), which explicitly lists USB support for all members of the JU family, including MCF51JU32VHS. The USB_DP and USB_DM pins are routed directly to internal circuitry and require only standard 27 Ω series termination resistors.
What package type does the MCF51JU32VHS use?
The MCF51JU32VHS uses a 44-pin Laminate QFN (5 mm × 5 mm) package, identified by the "HS" suffix in its part number per Freescale's ordering guide. This package includes an exposed thermal pad for enhanced heat dissipation and complies with MSL 3 handling requirements. Pin assignments and mechanical dimensions are documented in Section 8 (Pinout) and Section 7 (Dimensions) of the MCF51JU128 datasheet, applicable to all JU-series variants including MCF51JU32VHS.
How much flash memory does the MCF51JU32VHS have?
The MCF51JU32VHS contains 32 KB of on-chip program flash memory, as indicated by the "32" field in its part number format (MCF51JU[32]VHS). In addition, it includes FlexNVM - a user-configurable memory block usable for data storage or EEPROM emulation - and FlexRAM for runtime data buffering. All memory blocks are accessible via the EzPort serial programming interface and support in-application programming (IAP).
What is the operating temperature range for the MCF51JU32VHS?
The MCF51JU32VHS is rated for an ambient operating temperature range of –40°C to 105°C, denoted by the "V" suffix in its part number (MCF51JU32VHS). This industrial-grade rating is verified across all electrical and timing specifications in the official datasheet, including flash write endurance, ADC accuracy, and USB functionality. Thermal performance data - such as IDD_STOP and VLLS-mode currents - is explicitly characterized across this full range.
MCF51JU32VHS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 44-VFLGA 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:
- EBI/EMI, I2C, SPI, UART/USART, USB OTG
- Peripherals:
- DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 31
- 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 9x12b; D/A 1x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCF51JU32VHS FAQ
1.How can I place an order for MCF51JU32VHS through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF51JU32VHS 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 MCF51JU32VHS reliable?
The price and inventory of MCF51JU32VHS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF51JU32VHS is usually 5 days.
3.What payment methods are accepted for MCF51JU32VHS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF51JU32VHS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF51JU32VHS?
MCF51JU32VHS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF51JU32VHS 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 MCF51JU32VHS?
For technical support, including MCF51JU32VHS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF51JU32VHS requirements.
6.How does Aetrix verify that MCF51JU32VHS is sourced from the original manufacturer or authorized distributors?
All MCF51JU32VHS 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 MCF51JU32VHS meets industry standards.
7.What is the process for return or replacement of MCF51JU32VHS?
All MCF51JU32VHS units undergo pre-shipment inspection (PSI). If there is an issue with MCF51JU32VHS, 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 MCF51JU32VHS part is unused and in its original packaging.
Return procedure for MCF51JU32VHS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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