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NXP Semiconductors MCF51QU64VLFR
- Part No.:
- MCF51QU64VLFR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MCF51QU64VLFR.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,379
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Product details
Overview
MCF51QU64VLFR from NXP Semiconductors (formerly Freescale) is a ColdFire V1-based 32-bit microcontroller designed for low-power industrial and automotive control applications. It features a 50 MHz V1 ColdFire CPU, 64 KB flash memory, 1.71–3.6 V operating voltage, -40°C to 105°C temperature range, and integrated peripherals including 12-bit ADC/DAC, FTM timers, UART/I²C/SPI, and Mini-FlexBus interface - deployed in motor control modules and battery-powered sensor nodes.
For engineers reviewing the MCF51QU64VLFR datasheet, MCF51QU64VLFR pinout, MCF51QU64VLFR application, or MCF51QU64VLFR equivalent, key selection criteria include its 50 MHz core performance with 0.99 DMIPS/MHz from flash, 10 low-power modes (including VLLS1–VLLS3), 48 EGPIO pins, hardware CRC module, and LQFP-48 package compatibility for space-constrained embedded designs.
Technical Context
The MCF51QU64VLFR implements a ColdFire V1 core with Dhrystone 2.1 benchmarking at 0.99 DMIPS/MHz when executing from flash and 1.10 DMIPS/MHz from RAM. Its system architecture integrates a multipurpose clock generator (MCG), two crystal oscillators (1 kHz–32 MHz range), and a low-leakage wakeup unit (LLWU) supporting deterministic wake-from-stop latency as low as 92 μs.
Peripherals are organized around a unified memory map with FlexNVM/FlexRAM resources, EzPort serial programming interface, and Mini-FlexBus for external memory expansion. Analog subsystem includes a 12-bit SAR ADC with configurable sample rate, 12-bit DAC, analog comparator with 6-bit DAC reference, and voltage reference (VREF) module - all operating within the same 1.71–3.6 V supply domain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ColdFire V1 32-bit CPU, up to 50 MHz - enables real-time deterministic control loops with sub-microsecond interrupt latency |
| Flash Memory | 64 KB on-chip flash - sufficient for firmware + bootloader + parameter storage in standalone edge controllers |
| Operating Voltage | 1.71 V to 3.6 V - supports direct connection to single-cell Li-ion, 3.3 V logic rails, and wide-input DC-DC converters |
| Temperature Range | -40°C to +105°C - qualified for under-hood automotive and industrial ambient environments |
| ADC Resolution | 12-bit SAR ADC with programmable sampling - delivers ±1 LSB INL for precision current/voltage sensing in motor drives |
| Low-Power Modes | 10 configurable power modes including VLLS1–VLLS3 - achieves 1.4–3.3 μA stop-mode current for multi-year battery life |
| Communication | UART (Smart Card/FIFO), I²C, SPI (one with FIFO), Mini-FlexBus - enables mixed-speed peripheral interfacing and external memory expansion |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply and ground | Decoupling required per datasheet layout guidelines; VDD must be stable within 1.71–3.6 V during all operating modes |
| VDDA, VSSA | Analog power supply and ground | Must be isolated from digital planes; differential voltage ≤ ±0.1 V vs. VDD/VSS to prevent ADC/DAC accuracy degradation |
| EXTAL/XTAL | External crystal oscillator inputs | Supports 1–32 MHz crystals; used for high-accuracy clock source in MCG's FBE/FEE modes |
| RESET | Active-low reset input | Minimum 100 ns pulse width required; internal pullup enabled; compatible with open-drain reset supervisors |
| PTA0–PTA7, PTB0–PTB7, PTC0–PTC7, PTD0–PTD7, PTE0–PTE7 | Multi-function GPIO (EGPIO/RGPIO) | Up to 48 pins configurable as digital I/O, timer channels, UART/I²C/SPI signals, or touch-sensing inputs via TSI |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CRC Module | Accelerates checksum computation for firmware integrity verification and communication frame validation without CPU overhead |
| Low-Leakage Wakeup Unit (LLWU) | Enables selective pin-triggered wake from VLLS modes with <100 μs latency - critical for responsive event-driven sensing |
| Programmable Delay Block (PDB) | Synchronizes ADC conversions with PWM edges in motor control - eliminates software timing jitter in closed-loop systems |
| Touch Sensor Interface (TSI) | Capacitive touch sensing on up to 16 channels with hardware averaging - enables robust HMI without external ICs |
| Voltage Regulator (VREG) | On-chip regulator supplies core logic from 3.3–6.0 V input - simplifies power design by eliminating external LDO for VDD generation |
Applications
| Motor Control System | Industrial Sensor Node |
|---|---|
Use Scenario: Brushless DC (BLDC) motor commutation in HVAC blowers and pump drives requiring precise timing and fault response. IC Role / Device Role / Timing Role: Main controller executing FOC algorithms, managing gate driver PWM outputs via FTM modules, and monitoring phase currents via 12-bit ADC. Use Value: Sub-microsecond interrupt latency and PDB-synchronized ADC sampling ensure <1% torque ripple at 20 kHz switching frequency. | Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ data in remote industrial facilities. IC Role / Device Role / Timing Role: Low-power host MCU managing sensor I²C reads, local data logging to FlexNVM, and periodic LoRaWAN transmission via UART. Use Value: VLLS3 mode draws only 1.8–3.3 μA, enabling >5-year operation on a single CR123A cell with daily wake-up cycles. |
| Automotive Body Controller | Smart Power Outlet |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN bus communication. IC Role / Device Role / Timing Role: Central body controller interfacing with LIN transceivers via UART, driving relays/LEDs via EGPIO, and detecting switch events using LLWU. Use Value: -40°C to 105°C qualification and 10 low-power modes meet OEM requirements for under-dash placement and sleep-current budgets <100 μA. | Use Scenario: Energy-monitoring smart outlet with real-time load measurement, overcurrent protection, and Wi-Fi connectivity. IC Role / Device Role / Timing Role: Isolated measurement controller acquiring AC current/voltage via ADC, computing RMS/power, and signaling host MCU via SPI. Use Value: Hardware CRC ensures secure firmware updates; 12-bit DAC generates precise calibration references for shunt amplifier offset trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Kinetis KL27Z64VLH4 | ARM Cortex-M0+ core, 48 MHz max, 64 KB flash, identical 48-LQFP package but different pinout and peripheral mapping | Lacks Mini-FlexBus and ColdFire-specific debug interface; requires full firmware porting | Choose for ARM ecosystem alignment and lower active power, but expect PCB redesign and toolchain migration |
| MCF51JM128VLH | ColdFire V1 core, 128 KB flash, same 64-LQFP package - not pin-compatible with MCF51QU64VLFR's 48-LQFP | Higher memory capacity suits complex protocol stacks; incompatible footprint prevents drop-in replacement | Consider for future-proofing where board space allows larger package and increased flash demand justifies redesign |
Compared with Kinetis KL27Z64VLH4 and MCF51JM128VLH, the MCF51QU64VLFR offers unique ColdFire V1 instruction set compatibility, Mini-FlexBus for external memory, and optimized low-power stop-mode current - making it irreplaceable in legacy ColdFire-based designs requiring minimal BOM change and proven field reliability.
Availability
MCF51QU64VLFR is available at Aetrix Electronics and suitable for motor control systems, industrial sensor nodes, automotive body controllers, and smart power outlets requiring stable component supply across extended product lifecycles.
Supply support for MCF51QU64VLFR 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.
The MCF51QU64VLFR belongs to NXP's ColdFire QU-series microcontrollers, engineered for deterministic real-time control in resource-constrained, thermally demanding environments - emphasizing ultra-low-power operation, integrated analog precision, and robust electromagnetic compatibility.
FAQ
What is the maximum operating frequency of the MCF51QU64VLFR core?
The MCF51QU64VLFR features a ColdFire V1 core rated for up to 50 MHz system and core clock frequency in normal run mode. This is achievable with appropriate voltage (≥2.7 V) and temperature conditions. In Very Low-Power Run (VLPR) mode, the maximum core clock is reduced to 2 MHz to minimize dynamic power consumption while retaining full peripheral functionality.
Does the MCF51QU64VLFR support in-circuit debugging?
Yes, the MCF51QU64VLFR includes an integrated ColdFire DEBUG_Rev_B+ interface with single-wire Background Debug Mode (BDM) connection. This allows full JTAG-equivalent debug capability - including breakpoints, register inspection, and flash programming - using standard BDM probes without requiring additional debug headers or pins beyond the dedicated BKGD pin.
What analog peripherals are integrated into the MCF51QU64VLFR?
The MCF51QU64VLFR integrates a 12-bit SAR ADC, a 12-bit DAC, an analog comparator (CMP) with embedded 6-bit DAC reference, and a voltage reference (VREF) module. All analog blocks share the same VDDA/VSSA supply domain and operate across the full -40°C to 105°C temperature range, with specified INL/DNL performance validated per datasheet test conditions.
How many low-power modes does the MCF51QU64VLFR offer, and what is the lowest current draw?
The MCF51QU64VLFR provides 10 distinct low-power modes, including VLLS1, VLLS2, and VLLS3. In VLLS3 mode at 3.0 V and -40°C to 25°C ambient, the device draws only 1.8–3.3 μA - making it suitable for battery-powered applications requiring multi-year operation. Wakeup latency from VLLS3 is guaranteed at ≤92 μs.
Is the MCF51QU64VLFR pin-compatible with other members of the MCF51QU family?
No, the MCF51QU64VLFR (48-pin LQFP) is not pin-compatible with higher-pin-count variants like MCF51QU128VLH (64-pin LQFP) or MCF51QU128VHS (44-pin QFN). While sharing the same ColdFire V1 core and peripheral IP, package differences necessitate separate PCB layouts. Pin compatibility exists only within the same package variant - e.g., MCF51QU64VLF and MCF51QU32VLF share the 48-LQFP footprint.
MCF51QU64VLFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- MCF51Qx
- Packaging:
- Tape & Reel (TR)
- 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:
- 35
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 13x12b; D/A 1x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCF51QU64VLFR FAQ
1.How can I place an order for MCF51QU64VLFR through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF51QU64VLFR 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 MCF51QU64VLFR reliable?
The price and inventory of MCF51QU64VLFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF51QU64VLFR is usually 5 days.
3.What payment methods are accepted for MCF51QU64VLFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF51QU64VLFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF51QU64VLFR?
MCF51QU64VLFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF51QU64VLFR 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 MCF51QU64VLFR?
For technical support, including MCF51QU64VLFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF51QU64VLFR requirements.
6.How does Aetrix verify that MCF51QU64VLFR is sourced from the original manufacturer or authorized distributors?
All MCF51QU64VLFR 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 MCF51QU64VLFR meets industry standards.
7.What is the process for return or replacement of MCF51QU64VLFR?
All MCF51QU64VLFR units undergo pre-shipment inspection (PSI). If there is an issue with MCF51QU64VLFR, 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 MCF51QU64VLFR part is unused and in its original packaging.
Return procedure for MCF51QU64VLFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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