My Inquiry
My Account
NXP Semiconductors MCF51QU128VLH
- Part No.:
- MCF51QU128VLH
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MCF51QU128VLH.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:798
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MCF51QU128VLH from NXP Semiconductors (formerly Freescale) is a ColdFire V1-based 32-bit microcontroller with 128 KB on-chip flash, integrated FlexNVM/FlexRAM, and a 50 MHz CPU core. It operates from 1.71–3.6 V across –40°C to +105°C, features 12-bit ADC/DAC, hardware CRC, and low-power timers - deployed in industrial motor control, smart sensor nodes, and battery-powered HMI systems.
For engineers reviewing the MCF51QU128VLH datasheet, MCF51QU128VLH pinout, MCF51QU128VLH application, or MCF51QU128VLH equivalent, key selection considerations include its 64-pin LQFP package, 10 low-power modes, Mini-FlexBus interface, Smart Card–capable UARTs, and TSI-based touch sensing capability.
Technical Context
The MCF51QU128VLH implements a ColdFire V1 core with Dhrystone 2.1 performance of 0.99 DMIPS/MHz from flash and 1.10 DMIPS/MHz from RAM. Its clock system includes dual crystal oscillators (1 kHz–32 MHz), a multipurpose clock generator (MCG), and configurable low-power run/wait/stop modes.
Peripheral integration includes four-channel DMA, ColdFire DEBUG_Rev_B+ single-wire BDM debug interface, programmable delay block (PDB), FTM/PWM timers, LPTMRs, CMT carrier modulator, and EzPort serial programming. Analog subsystem comprises 12-bit SAR ADC, 12-bit DAC, analog comparator with 6-bit DAC, and voltage reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ColdFire V1, up to 50 MHz - enables deterministic real-time execution for motor control and closed-loop timing-critical tasks |
| Flash Memory | 128 KB program flash + FlexNVM - supports field firmware updates and data logging without external storage |
| Operating Voltage | 1.71 V to 3.6 V - compatible with single-cell Li-ion, 3.3 V logic rails, and wide-input industrial power supplies |
| Temperature Range | –40°C to +105°C ambient - qualified for under-hood automotive, factory automation, and outdoor metering |
| Analog Peripherals | 12-bit ADC (16-channel), 12-bit DAC, CMP with 6-bit DAC, VREF - enables precision sensor signal conditioning and actuator control |
| Low-Power Modes | 10 configurable modes including VLLS1–VLLS3 (sub-4 μA stop current) - extends battery life in always-on edge devices |
| Communication Interfaces | UARTs (Smart Card/FIFO), SPI (FIFO), I²C, Mini-FlexBus - supports legacy peripherals, secure card readers, and memory-mapped expansion |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply and ground | Primary 1.71–3.6 V domain; multiple pins ensure low-impedance routing and noise immunity |
| VDDA, VSSA | Analog power supply and ground | Isolated analog domain with ≤0.1 V differential tolerance - critical for ADC/DAC accuracy |
| EXTAL/XTAL | External crystal oscillator input/output | Supports 1–32 MHz crystals; enables precise timing for UART baud rates and real-time clocks |
| RESET | Active-low reset input | Accepts 100 ns minimum pulse width; internal POR/LVD ensures reliable startup under brownout |
| IRQ | Interrupt request input | Configurable as edge-triggered interrupt source for external event capture or wake-from-stop |
| TSI_CHx | Touch sensing input | Enables capacitive touch buttons/sliders using low-power hardware TSI module - no CPU overhead |
| ADCx, DACx | Analog input/output channels | 16-channel ADC with 12-bit resolution; dedicated DAC output for reference or actuator drive |
| FTMx_CHy | PWM/timer output | Motor control-grade PWM outputs with dead-time insertion and fault protection support |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CRC Module | Accelerates checksum calculation for firmware integrity verification and communication protocol framing |
| Unique 128-bit Chip ID | Enables device-specific licensing, secure boot binding, and anti-cloning in production firmware |
| Low-Leakage Wakeup Unit (LLWU) | Allows selective pin-triggered wake from VLLS modes with sub-μA quiescent current |
| Mini-FlexBus Interface | 8/16-bit external memory bus supporting NOR flash, SRAM, and FPGA glue logic at up to 25 MHz |
| Smart Card–Capable UART | Complies with ISO/IEC 7816-3 for contact-based smart card readers in secure access terminals |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop BLDC motor commutation in HVAC blowers and pump drives requiring precise timing and analog feedback. IC Role / Device Role / Timing Role: Real-time controller executing FOC algorithms, sampling current/voltage via ADC, generating PWM via FTM, and managing thermal protection. Use Value: Integrated PDB synchronizes ADC sampling with PWM edges; 50 MHz core delivers <1 μs interrupt latency for fault response. | Use Scenario: Battery-powered environmental monitor with temperature/humidity/pressure sensing and wireless telemetry. IC Role / Device Role / Timing Role: System-on-chip host managing sensor acquisition, local processing, low-power scheduling, and UART/EzPort firmware updates. Use Value: VLLS3 mode draws only 1.8–3.3 μA at –40°C to +25°C, enabling multi-year operation on coin-cell batteries. |
| Human-Machine Interface | Secure Access Terminal |
Use Scenario: Touch-enabled control panel for medical devices or industrial HMIs operating in noisy EMI environments. IC Role / Device Role / Timing Role: Dedicated TSI peripheral handles capacitive touch detection while CPU remains in low-power wait mode. Use Value: Hardware TSI eliminates software polling overhead; built-in noise rejection maintains reliability near motors or RF sources. | Use Scenario: Physical access control reader supporting contact-based smart cards (e.g., HID iCLASS, MIFARE). IC Role / Device Role / Timing Role: UART peripheral configured per ISO/IEC 7816-3 with precise bit timing, voltage-level translation, and error recovery logic. Use Value: Smart Card UART eliminates need for external level shifters or timing controllers - reduces BOM and layout complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Kinetis K22FN512VLH12 | ARM Cortex-M4F core, 120 MHz, 512 KB flash, floating-point unit, USB OTG - higher performance but larger footprint and power envelope | Better suited for USB-connected gateways or audio processing; lacks native Smart Card UART and TSI | Select when needing USB, FPU, or >128 KB code space - requires PCB redesign due to different pinout and package (64 LQFP vs. 64 LQFP but incompatible signal mapping) |
| S32K144LQT0MLHT | ARM Cortex-M4F, 112 MHz, 512 KB flash, CAN FD, ASIL-B safety features - automotive-qualified with enhanced diagnostics | Targeted at automotive body electronics; adds CAN FD and functional safety but omits Mini-FlexBus and Smart Card UART | Choose for automotive OEM programs requiring ISO 26262 compliance; not drop-in - differs in debug interface (JTAG/SWD vs. BDM), peripheral set, and voltage range (2.7–5.5 V) |
Compared with K22FN512VLH12 and S32K144LQT0MLHT, the MCF51QU128VLH offers unique value in cost-sensitive industrial HMI and smart-card terminal designs where ColdFire's deterministic timing, integrated TSI, and Smart Card UART reduce component count and simplify certification - without requiring ARM toolchain migration or safety qualification overhead.
Availability
MCF51QU128VLH is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, human-machine interfaces, secure access terminals, and battery-powered embedded systems requiring stable component supply and long-term lifecycle support.
Supply support for MCF51QU128VLH 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, IoT, and mobile applications.
The MCF51QU128VLH belongs to NXP's ColdFire V1 microcontroller family, designed specifically for cost-optimized, low-power industrial control and HMI applications requiring high analog integration, robust timing, and extended temperature operation.
FAQ
What is the maximum operating frequency of the MCF51QU128VLH core?
The MCF51QU128VLH features a ColdFire V1 core rated for up to 50 MHz system and core clock frequency in normal run mode. This frequency is supported across the full operating voltage range (1.71–3.6 V) and temperature range (–40°C to +105°C). In very low-power run (VLPR) mode, the core clock is limited to 2 MHz to minimize active power consumption while retaining full peripheral functionality.
Does the MCF51QU128VLH support Smart Card protocols?
Yes, the MCF51QU128VLH includes UART modules compliant with ISO/IEC 7816-3 for contact-based smart card communication. These UARTs support precise bit timing, voltage-level adaptation, and protocol-specific framing required by standards such as EMV and PC/SC. The MCF51QU128VLH implements this natively without external level shifters or timing controllers - a key differentiator versus general-purpose UARTs.
What low-power modes are available on the MCF51QU128VLH?
The MCF51QU128VLH provides 10 distinct low-power modes, including VLPR, VLPS, LLS, and three VLLS variants (VLLS1–VLLS3). VLLS3 achieves sub-4 μA typical current draw at 3.0 V and –40°C to +25°C, with wake-up via LLWU-configurable pins or RTC alarm. All modes retain RAM content and selected peripheral states, enabling rapid resumption of operation without full reinitialization.
How much Flash and RAM does the MCF51QU128VLH include?
The MCF51QU128VLH integrates 128 KB of on-chip program flash memory, plus FlexNVM (for data storage) and FlexRAM (for configurable SRAM/NVM partitioning). Total RAM includes 32 KB of general-purpose SRAM. Flash supports erase/program cycles with wear leveling managed in firmware, and EzPort enables in-system programming via SPI-compatible interface - eliminating need for dedicated debug headers in production units.
Is the MCF51QU128VLH pin-compatible with other members of the MCF51QU family?
No - the MCF51QU128VLH uses a 64-pin LQFP (LH) package, whereas other variants like MCF51QU128VHS use 44-pin QFN and MCF51QU64VLF use 48-pin LQFP. Pin assignments differ significantly between packages due to I/O count, peripheral mapping, and power/ground distribution requirements. Migration between variants requires PCB redesign and firmware adaptation to match new pinmux configurations and peripheral availability.
MCF51QU128VLH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- 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:
- 48
- 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 19x12b; D/A 1x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCF51QU128VLH FAQ
1.How can I place an order for MCF51QU128VLH through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF51QU128VLH 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 MCF51QU128VLH reliable?
The price and inventory of MCF51QU128VLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF51QU128VLH is usually 5 days.
3.What payment methods are accepted for MCF51QU128VLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF51QU128VLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF51QU128VLH?
MCF51QU128VLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF51QU128VLH 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 MCF51QU128VLH?
For technical support, including MCF51QU128VLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF51QU128VLH requirements.
6.How does Aetrix verify that MCF51QU128VLH is sourced from the original manufacturer or authorized distributors?
All MCF51QU128VLH 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 MCF51QU128VLH meets industry standards.
7.What is the process for return or replacement of MCF51QU128VLH?
All MCF51QU128VLH units undergo pre-shipment inspection (PSI). If there is an issue with MCF51QU128VLH, 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 MCF51QU128VLH part is unused and in its original packaging.
Return procedure for MCF51QU128VLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MCF51QU128VLH Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
