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NXP Semiconductors MCF51QU32VHS
- Part No.:
- MCF51QU32VHS
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 44-VFLGA Exposed Pad
- Datasheet:
-
MCF51QU32VHS.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 44MAPLGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,831
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Product details
Overview
MCF51QU32VHS from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller with 32 KB flash, 44-pin Laminate QFN (5 mm × 5 mm) package, -40°C to 105°C operating range, and integrated 12-bit ADC/DAC, UART, SPI, I²C, and low-power timers. It targets industrial sensor nodes and battery-powered control systems requiring deterministic real-time response and extended temperature operation.
For engineers reviewing the MCF51QU32VHS datasheet, MCF51QU32VHS pinout, MCF51QU32VHS application, or MCF51QU32VHS equivalent, key selection criteria include its 50 MHz V1 ColdFire core performance (0.99 DMIPS/MHz from flash), 10 low-power modes with sub-μA stop currents (e.g., 1.4–2.6 μA in VLLS1 at 3.0 V), FlexNVM/FlexRAM memory architecture, and hardware CRC module for firmware integrity verification.
Technical Context
The MCF51QU32VHS implements a ColdFire V1 CPU core with Dhrystone 2.1 benchmark performance of 0.99 DMIPS/MHz when executing from flash and supports up to 50 MHz system clock. Its power management includes a voltage regulator (VREG), low-leakage wakeup unit (LLWU), and 10 configurable low-power modes - including VLLS1–VLLS3, LLS, VLPS, and STOP - enabling sub-microamp retention states.
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 program flash, FlexNVM, FlexRAM, and RAM, accessed via EzPort serial programming interface and Mini-FlexBus external bus interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ColdFire V1, 50 MHz max - delivers deterministic real-time execution with 0.99 DMIPS/MHz from flash memory |
| Flash Memory | 32 KB - sufficient for compact firmware images with integrated bootloader and field-upgradable code segments |
| Operating Voltage | 1.71 V to 3.6 V - enables direct connection to single-cell Li-ion, 3.3 V, or 2.5 V supply rails without level-shifting |
| Temperature Range | -40°C to 105°C - qualified for under-hood automotive, industrial motor drives, and outdoor metering applications |
| ADC/DAC | 12-bit SAR ADC + 12-bit DAC - supports closed-loop analog control, sensor signal conditioning, and calibration reference generation |
| Low-Power Modes | 10 modes including VLLS1 (1.4–2.6 μA) - allows ultra-low-energy wake-on-event operation in battery-powered endpoints |
| CRC Module | Hardware-accelerated CRC-32 - enables fast firmware image validation and secure boot integrity checks without CPU overhead |
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/ground | Primary 1.71–3.6 V supply domain; decoupling required within 5 mm of pins for stable core operation |
| VDDA, VSSA | Analog power/ground | Isolated analog domain with ≤0.1 V differential tolerance vs. digital rail - critical for ADC/DAC accuracy |
| EXTAL/XTAL | Crystal oscillator input/output | Supports 1–32 MHz crystals; internal load caps configurable for low-part-count clocking in space-constrained designs |
| RESET | Active-low reset input | Accepts 100 ns minimum pulse width; internal pullup ensures defined state during power-up and brownout |
| IRQ | External interrupt request | Dedicated asynchronous wakeup source compatible with all low-power modes except VLLS0 |
| PTA0–PTA31, PTB0–PTB15 | EGPIO/RGPIO pins | Up to 48 general-purpose I/O with programmable slew rate, drive strength, and digital/analog filtering |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Debug Interface | ColdFire DEBUG_Rev_B+ with single-wire BDM - enables full JTAG-equivalent debug access using only one PCB trace and no external debugger header |
| FlexNVM/FlexRAM Architecture | User-configurable nonvolatile memory partitioning - allows runtime reassignment of EEPROM-like storage or data logging space without hardware changes |
| Low-Power Timers (LPTMR) | 16-bit timers operable down to VLPR mode (2 MHz core clock) - supports precise timing in ultra-low-power sleep states for periodic sensor sampling |
| Touch Sensing Interface (TSI) | Hardware-accelerated capacitive touch sensing on up to 16 channels - eliminates need for external touch controller IC in HMI applications |
| Smart Card UART Support | UART modules with ISO7816-3 compliant timing and voltage-level control - enables direct integration into secure access card readers and payment terminals |
Applications
| Industrial Sensor Node | Automotive Body Control |
|---|---|
Use Scenario: Wireless temperature/humidity node powered by coin cell, transmitting data every 5 minutes via BLE gateway. IC Role / Device Role / Timing Role: Main controller managing sensor acquisition, low-power timer-triggered wakeups, CRC-verified firmware updates, and UART-to-BLE bridge logic. Use Value: VLLS1 current of 1.4–2.6 μA at 3.0 V extends battery life beyond 5 years; integrated 12-bit ADC eliminates external signal conditioning ICs. | Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN communication. IC Role / Device Role / Timing Role: Real-time actuator driver with PWM-controlled motor outputs, LIN physical layer interface, and fault-safe watchdog supervision. Use Value: -40°C to 105°C rating ensures reliability in door cavity environments; hardware CRC validates LIN message integrity against EMI corruption. |
| Smart Energy Meter | Medical Portable Monitor |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, RTC, and optical/RS-485 communication. IC Role / Device Role / Timing Role: System-on-chip handling metrology calculations, secure firmware storage in FlexNVM, RTC with battery backup, and isolated RS-485 transceiver control. Use Value: 128-bit unique chip ID enables cryptographic device binding; hardware CRC accelerates firmware signature verification during OTA updates. | Use Scenario: Battery-powered patient monitor acquiring ECG, SpO₂, and temperature with Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Analog front-end controller performing simultaneous 12-bit ADC sampling, real-time digital filtering, and low-latency BLE packet assembly. Use Value: Integrated 12-bit DAC generates precision reference voltages for analog sensor biasing; TSI interface supports capacitive button overlay for glove-friendly UI. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Kinetis KL27Z128VLH4 | ARM Cortex-M0+, 48 MHz, 128 KB flash, 16 KB SRAM, same 44-QFN package | Lacks ColdFire instruction set compatibility; requires firmware porting; offers USB OTG but no FlexNVM | Choose for new ARM-based designs needing USB connectivity and larger memory footprint |
| MCF51JM128VFP | ColdFire V1 core, 128 KB flash, 44-LQFP (7 mm × 7 mm), identical peripheral set | Larger footprint; higher flash capacity; same -40°C to 105°C rating and power modes | Choose when board layout allows LQFP and firmware requires >32 KB flash for feature-rich applications |
Compared with MCF51QU32VHS, KL27Z128VLH4 provides modern ARM toolchain support and USB but sacrifices ColdFire binary compatibility and FlexNVM flexibility, while MCF51JM128VFP retains full architectural continuity at the cost of increased PCB area and component count.
Availability
MCF51QU32VHS is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, and smart energy meters requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MCF51QU32VHS 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 markets, with deep expertise in microcontrollers, RF, and security technologies.
The MCF51QU32VHS belongs to NXP's ColdFire V1 microcontroller family, designed specifically for cost-sensitive, low-power embedded applications demanding high reliability, extended temperature operation, and integrated analog peripherals in compact packages.
FAQ
What is the maximum operating frequency of the MCF51QU32VHS core?
The MCF51QU32VHS features a ColdFire V1 CPU core rated for up to 50 MHz system clock frequency. This maximum speed is achievable under specified conditions: VDD between 1.71 V and 3.6 V, ambient temperature from -40°C to 105°C, and proper decoupling. At this frequency, the core delivers 0.99 DMIPS per MHz when executing from flash memory, as confirmed in the official MCF51QU128 datasheet Rev. 5 (03/2015). The MCF51QU32VHS shares identical core specifications with the MCF51QU128 family.
Does the MCF51QU32VHS support hardware debugging, and what interface is used?
Yes, the MCF51QU32VHS supports full hardware debugging via the integrated ColdFire DEBUG_Rev_B+ interface with single-wire Background Debug Mode (BDM). This interface uses only one dedicated pin (BKGD) and requires no external debug header or JTAG adapter. It enables breakpoints, watchpoints, register inspection, and flash programming directly through standard BDM tools. The MCF51QU32VHS inherits this capability from the MCF51QU128 family documentation, where DEBUG_Rev_B+ is explicitly listed as a system module feature.
What are the memory resources available on the MCF51QU32VHS?
The MCF51QU32VHS includes 32 KB of on-chip program flash memory, plus FlexNVM and FlexRAM blocks whose sizes are configurable at runtime. It also contains standard RAM for data storage and stack operations. These memory resources are accessed via the EzPort serial programming interface and the Mini-FlexBus external bus interface. All memory specifications - including flash endurance, write cycle times, and FlexNVM partitioning behavior - are consistent with the MCF51QU128 family datasheet, as the MCF51QU32VHS is a memory-variant member of that family.
Can the MCF51QU32VHS operate reliably in automotive under-hood environments?
Yes, the MCF51QU32VHS is qualified for operation from -40°C to +105°C ambient temperature, meeting requirements for many automotive under-hood applications such as body control modules and sensor interfaces. Its voltage regulator (VREG), low-leakage wakeup unit (LLWU), and robust ESD ratings (±2000 V HBM) further support harsh electrical environments. The device's thermal handling ratings - including storage up to 150°C and lead-free solder reflow at 260°C - align with AEC-Q200 stress test expectations, though formal AEC-Q100 qualification status must be verified separately per application.
How does the MCF51QU32VHS manage power consumption in low-power modes?
The MCF51QU32VHS implements 10 distinct low-power modes, including VLLS1–VLLS3, LLS, VLPS, and STOP, with measured currents as low as 1.4–2.6 μA in VLLS1 at 3.0 V (–40°C to 25°C). Power optimization is achieved through clock gating, peripheral disablement, and voltage regulation control. The low-leakage wakeup unit (LLWU) enables selective pin-triggered wakeups without exiting deep sleep. These power characteristics are documented in the MCF51QU128 datasheet Table 5 and apply identically to the MCF51QU32VHS as a family member.
MCF51QU32VHS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 44-VFLGA Exposed Pad
- Series:
- MCF51Qx
- 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
- Peripherals:
- DMA, 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 11x12b; D/A 1x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCF51QU32VHS FAQ
1.How can I place an order for MCF51QU32VHS through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF51QU32VHS 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 MCF51QU32VHS reliable?
The price and inventory of MCF51QU32VHS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF51QU32VHS is usually 5 days.
3.What payment methods are accepted for MCF51QU32VHS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF51QU32VHS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF51QU32VHS?
MCF51QU32VHS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF51QU32VHS 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 MCF51QU32VHS?
For technical support, including MCF51QU32VHS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF51QU32VHS requirements.
6.How does Aetrix verify that MCF51QU32VHS is sourced from the original manufacturer or authorized distributors?
All MCF51QU32VHS 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 MCF51QU32VHS meets industry standards.
7.What is the process for return or replacement of MCF51QU32VHS?
All MCF51QU32VHS units undergo pre-shipment inspection (PSI). If there is an issue with MCF51QU32VHS, 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 MCF51QU32VHS part is unused and in its original packaging.
Return procedure for MCF51QU32VHS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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