My Inquiry
My Account
NXP Semiconductors PCF51QU128VLH
- Part No.:
- PCF51QU128VLH
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
PCF51QU128VLH.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,803
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PCF51QU128VLH from NXP Semiconductors (formerly Freescale) is a ColdFire V1-based 32-bit microcontroller with 128 KB flash, 50 MHz CPU, 1.71–3.6 V operation, -40°C to 105°C ambient range, and integrated analog peripherals including 12-bit ADC/DAC and comparators. It serves as the main control unit in industrial motor drives requiring deterministic real-time response, low-power operation, and mixed-signal integration.
For engineers reviewing the PCF51QU128VLH datasheet, PCF51QU128VLH pinout, PCF51QU128VLH application, or PCF51QU128VLH equivalent, key selection considerations include its 10 low-power modes, FlexNVM/FlexRAM memory architecture, Mini-FlexBus external interface, hardware CRC module, and support for Smart Card–enabled UARTs in secure embedded control systems.
Technical Context
The PCF51QU128VLH implements the ColdFire V1 core with Dhrystone 2.1 performance of 0.99 DMIPS/MHz from flash and 1.10 DMIPS/MHz from RAM. Its system-level architecture integrates a four-channel DMA controller, ColdFire DEBUG_Rev_B+ single-wire BDM interface, and multipurpose clock generator (MCG) supporting crystal oscillators across three frequency bands (1 kHz–32 MHz).
Power management includes voltage regulator (VREG), low-leakage wakeup unit (LLWU), and ten configurable low-power modes - from VLPR (Very Low-Power Run) at 2 MHz to VLLS1 (Very Low-Leakage Stop Mode 1) drawing just 1.4 µA at -40°C to 25°C. Analog subsystem comprises a 12-bit SAR ADC, 12-bit DAC, comparator with internal 6-bit DAC, and programmable voltage reference (VREF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ColdFire V1, 32-bit, up to 50 MHz - enables deterministic real-time execution with 1.10 DMIPS/MHz from RAM |
| 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, industrial PLC, and motor control environments |
| Analog Peripherals | 12-bit ADC (16-channel), 12-bit DAC, CMP with 6-bit DAC - enables closed-loop analog sensing and actuation without external signal chain ICs |
| Low-Power Modes | 10 modes including VLLS3 (1.8 µA @ -40°C to 25°C) - extends battery life in portable HMI and wireless sensor nodes |
| Communication Interfaces | UARTs with Smart Card support, SPI (one with FIFO), I²C, Mini-FlexBus - supports legacy industrial protocols and external memory expansion |
Pinout & Package
PCF51QU128VLH uses a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch), designated by the "LH" suffix per Freescale's part numbering scheme. Pin assignments are defined in Section 8 of the MCF51QU128 Rev. 5 datasheet, with multiplexed signals supporting EGPIO, RGPIO, TSI, UART, SPI, I²C, ADC, DAC, and clock inputs/outputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power and ground rails | Digital (VDD/VSS) and analog (VDDA/VSSA) supply domains with ≤0.1 V differential tolerance - require separate filtering and layout isolation |
| EXTAL/XTAL | Crystal oscillator input/output | Supports 1 kHz–32 MHz crystals - enables precise timing for RTC, communication baud rates, and PWM synchronization |
| RESET | Active-low reset input | Accepts 100 ns minimum pulse width - integrates with external supervisor ICs or power-on reset circuits |
| IRQ | Interrupt request input | Configurable edge-sensitive interrupt source - used for external event capture, emergency stop, or wake-from-stop signaling |
| PTA0–PTA31, PTB0–PTB15, etc. | Multiplexed GPIO ports | Up to 48 EGPIO pins with programmable drive strength, pullup/pulldown (22–50 kΩ), and digital/analog filtering - support HMI, status indication, and sensor interfacing |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CRC Module | Accelerates cyclic redundancy checks for firmware integrity verification and communication frame validation - reduces CPU load during OTA updates |
| 128-bit Unique Chip ID | Enables device-specific cryptographic key derivation and secure provisioning in IoT edge nodes without external EEPROM |
| Low-Power Timers (LPTMR) | 16-bit timers operating up to 25 MHz in VLPR mode - sustain accurate timekeeping and periodic wakeups while consuming sub-µA current |
| Touch Sensor Interface (TSI) | Capacitive touch sensing with hardware charge-transfer measurement - supports up to 16 electrodes for button/slider implementation without external controllers |
| EzPort Serial Programming | Single-pin serial interface for in-system flash programming - simplifies production programming and field firmware recovery |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
Use Scenario: Closed-loop speed and torque regulation in BLDC/PMSM drives with Hall/encoder feedback and current sensing. IC Role / Device Role / Timing Role: Main controller executing FOC algorithms, managing PWM generation via FTM modules, and sampling ADC channels at synchronized intervals. Use Value: Integrated 12-bit ADC with hardware trigger alignment and PDB ensures <1 µs timing jitter between current sampling and PWM update - critical for torque ripple reduction. | Use Scenario: Polyphase electricity meter with tariff switching, tamper detection, and RS-485/PLC communication. IC Role / Device Role / Timing Role: System-on-chip performing metrology calculations, real-time clock management, secure data logging to FlexNVM, and Smart Card–enabled authentication. Use Value: Hardware CRC and 128-bit unique ID enable cryptographic signature of energy consumption logs - meeting IEC 62056-21 and DLMS/COSEM compliance requirements. |
| Portable Medical HMI | Automotive Body Control Module |
Use Scenario: Battery-powered patient monitor with capacitive touch UI, analog sensor front-end, and Bluetooth LE gateway interface. IC Role / Device Role / Timing Role: Central MCU handling TSI-based touch detection, 12-bit ADC acquisition from ECG/SpO₂ sensors, and UART-to-BLE bridge. Use Value: VLLS3 mode draws only 1.8 µA at room temperature - extends coin-cell battery life beyond 2 years in standby with periodic sensor wakeups. | Use Scenario: Door module controlling window lift, mirror fold, interior lighting, and LIN bus communication. IC Role / Device Role / Timing Role: Low-voltage tolerant controller interfacing with 12 V battery via VREGIN, managing PWM dimming, and monitoring switch inputs with LLWU wake capability. Use Value: 1.71 V minimum operating voltage and -40°C to 105°C qualification ensure reliable cold-cranking operation and under-dash thermal resilience. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Kinetis KL27Z128VLH | ARM Cortex-M0+ core, 48 MHz, 128 KB flash, 16 KB SRAM - lacks FlexNVM but adds USB OTG and higher analog integration (16-bit sigma-delta ADC) | Better suited for USB-connected medical devices and cost-sensitive consumer HMI where ARM ecosystem tooling is preferred | Select KL27Z128VLH when USB host/device capability or tighter analog precision is required over ColdFire's deterministic interrupt latency |
| S32K118LFT0MLF | ARM Cortex-M4F core, 112 MHz, 128 KB flash, AEC-Q100 Grade 1 (-40°C to 125°C), CAN FD - adds functional safety features (ECC, lockstep) and automotive-grade qualification | Targeted for ASIL-B automotive body electronics where CAN FD networking and ISO 26262 compliance are mandatory | Select S32K118LFT0MLF only when automotive functional safety certification or CAN FD bus integration is required - not drop-in compatible |
Compared with KL27Z128VLH and S32K118LFT0MLF, the PCF51QU128VLH offers superior deterministic real-time behavior via ColdFire V1's fixed-latency pipeline and dedicated BDM debug interface, lower active power at 50 MHz, and FlexNVM for robust firmware/data partitioning - making it optimal for non-automotive industrial control where predictability and field-upgrade reliability outweigh ARM ecosystem advantages.
Availability
PCF51QU128VLH is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, portable medical HMI, and automotive body electronics requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for PCF51QU128VLH 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 company formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The PCF51QU128VLH belongs to NXP's ColdFire V1 microcontroller family, designed specifically for cost-sensitive, low-power industrial control applications requiring high analog integration, deterministic real-time performance, and extended temperature operation without automotive qualification overhead.
FAQ
What is the maximum operating frequency of the PCF51QU128VLH core?
The PCF51QU128VLH features a ColdFire V1 core rated for up to 50 MHz system and core clock frequency in normal run mode. This frequency is achievable across the full -40°C to 105°C ambient temperature range and 1.71 V to 3.6 V supply voltage, as specified in Table 8 of the MCF51QU128 Rev. 5 datasheet. The PCF51QU128VLH maintains this performance with Dhrystone 2.1 benchmark results of 0.99 DMIPS per MHz when executing from flash memory.
Does the PCF51QU128VLH support in-system programming via a single-pin interface?
Yes, the PCF51QU128VLH supports serial in-system programming through its EzPort interface, which operates using a single bidirectional pin (EzP_CS_B). This feature allows for field firmware updates and production programming without requiring JTAG or BDM hardware, reducing test fixture complexity. The EzPort protocol is documented in Section 6.4.2 of the MCF51QU128 Rev. 5 datasheet and is fully supported by NXP's Flash Loader utility for the PCF51QU128VLH.
What analog peripherals are integrated into the PCF51QU128VLH?
The PCF51QU128VLH integrates a 12-bit SAR ADC with up to 16 input channels, a 12-bit DAC, an analog comparator (CMP) with an internal 6-bit DAC and programmable reference input, and a voltage reference (VREF) module. These peripherals are electrically characterized across the full operating range: ADC accuracy is ±1.5 LSB INL, DAC output swing is rail-to-rail, and CMP propagation delay is 120 ns typical. All analog blocks share the VDDA/VSSA supply domain and are detailed in Sections 6.6.1–6.6.4 of the MCF51QU128 Rev. 5 datasheet for the PCF51QU128VLH.
How many low-power modes does the PCF51QU128VLH support, and what is the lowest current draw?
The PCF51QU128VLH supports ten distinct low-power modes, including VLPR, VLPW, VLPS, LLS, and three VLLS variants. The lowest active current draw is achieved in VLLS3 mode, consuming 1.8 µA at -40°C to 25°C and 3.3 µA at 105°C (Table 5, IDD_VLLS3). This mode retains RAM content, enables LLWU wake sources, and supports ultra-low-power real-time clock operation - making it ideal for battery-backed applications requiring multi-year standby. The PCF51QU128VLH's power modes are fully documented in Section 5.2.4 and 5.2.5 of the official datasheet.
Is the PCF51QU128VLH pin-compatible with other members of the MCF51QU family?
No, the PCF51QU128VLH is not universally pin-compatible across the MCF51QU family. While all variants use the same 64-pin LQFP package (LH suffix), pin assignments differ between memory configurations (e.g., MCF51QU128VLH vs. MCF51QU32VFM) due to differing peripheral sets and signal multiplexing. For example, the 32-pin QFN variant (FM) has entirely different pinout and I/O count. Migration between PCF51QU128VLH and other MCF51QU parts requires PCB redesign and firmware adaptation - verified in Section 8.1 (Signal Multiplexing and Pin Assignments) of the MCF51QU128 Rev. 5 datasheet.
PCF51QU128VLH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- MCF51Qx
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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
- 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:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
PCF51QU128VLH FAQ
1.How can I place an order for PCF51QU128VLH through Aetrix?
Please submit a Request for Quotation (RFQ) for PCF51QU128VLH 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 PCF51QU128VLH reliable?
The price and inventory of PCF51QU128VLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCF51QU128VLH is usually 5 days.
3.What payment methods are accepted for PCF51QU128VLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCF51QU128VLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCF51QU128VLH?
PCF51QU128VLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCF51QU128VLH 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 PCF51QU128VLH?
For technical support, including PCF51QU128VLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCF51QU128VLH requirements.
6.How does Aetrix verify that PCF51QU128VLH is sourced from the original manufacturer or authorized distributors?
All PCF51QU128VLH 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 PCF51QU128VLH meets industry standards.
7.What is the process for return or replacement of PCF51QU128VLH?
All PCF51QU128VLH units undergo pre-shipment inspection (PSI). If there is an issue with PCF51QU128VLH, 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 PCF51QU128VLH part is unused and in its original packaging.
Return procedure for PCF51QU128VLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PCF51QU128VLH 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…
