MCF51QU128VHS - 50MHz 128KB Flash MCU | NXP | 44-MAPBGA
MPN: MCF51QU128VHS ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
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| 500 | $0 | $0.00 |
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MCF51QU128VHS Overview
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The MCF51QU128VHS belongs to the ColdFire microcontroller hierarchy, combining a 32-bit MCU platform with configurable embedded EEPROM and FlexMemory technology. This places it between general-purpose embedded processing and the low-power, mixed-signal designs targeted by the MCF51Qx portfolio.
The principal features supported by the supplied data include an operating frequency of up to 50 MHz, 128 KB of Flash, configurable embedded EEPROM, and a high-accuracy 16-bit analog-to-digital converter. The small 5 mm by 5 mm package supports space-constrained designs, while the MCU family description emphasizes ultra-low-power capabilities. The NXP product result identifies the device as active.
The ColdFire V1 core provides the compute foundation, while the peripheral set is intended to support embedded control and signal-processing tasks. The datasheet result states that its general-purpose specifications apply to RGPIO, FTM, and UART signals under conditions of 25 pF loading, VDD from 3.6 V to 1.71 V, and the full temperature range.
Typical applications include industrial control, compact embedded instrumentation, low-power sensor nodes, portable measurement systems, and connected equipment requiring a small microcontroller footprint. The 50 MHz core provides processing headroom, while the 16-bit ADC is useful for monitoring analog inputs without requiring a separate converter.
The primary design consideration is package and firmware verification: use the manufacturer datasheet for the complete 44-pin map, exposed-pad or thermal requirements, decoupling recommendations, and startup configuration before layout or PCB replacement. A software migration is required unless the replacement is confirmed as pin-to-pin and function-compatible.
This page combines the verified NXP product information, datasheet specifications, source links, application guidance, and replacement constraints to support component selection and sourcing decisions beyond a basic distributor listing.
Drop-in alternatives for MCF51QU128VHS — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MCF51QU128VHS (same form factor and footprint) — differing in Package, Flash Memory, Operating Temperature Range, Product Type, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesMCF51QU128VHS Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit microcontroller |
| Processor Core | ColdFire V1 |
| Maximum Core Frequency | 50 MHz |
| Flash Memory | 128 KB |
| Operating Voltage | 1.71 V to 3.6 V |
| Flash Write Voltage | 1.71 V to 3.6 V |
| Ambient Temperature Range | -40°C to 105°C |
| Analog-to-Digital Converter | 16-bit ADC |
| Embedded Memory | Configurable embedded EEPROM |
| Memory Technology | FlexMemory |
| Package | 44-MAPBGA |
| Package Dimensions | 5 mm x 5 mm |
| General-Purpose Signals | RGPIO, FTM, and UART |
| General-Purpose Test Load | 25 pF |
| Power Features | Ultra-low-power capabilities |
| Lifecycle Status | Active |
MCF51QU128VHS 5 mm x 5 mm Pin Configuration Guide
Pin configuration for MCF51QU128VHS (5 mm x 5 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MCF51QU128VHS.
Refer to the datasheet for full pin configuration.
Typical Applications
MCF51QU128VHS is suitable for 6 applications: Industrial Embedded Control, Low-Power Sensor Node, Portable Measurement Instrument, Connected Equipment Controller, Compact Analog Monitoring System, Battery-Powered Field Sensor.
Industrial Embedded Control
The MCF51QU128VHS fits compact industrial controllers that require a 32-bit ColdFire V1 core, up to 50 MHz operation, and 128 KB of Flash. Its 1.71 V to 3.6 V supply range accommodates low-voltage embedded systems, while the 16-bit ADC supports analog monitoring alongside digital control functions. The 44-MAPBGA package reduces board area compared with larger leaded packages, but the exposed-pad and thermal requirements must be implemented according to the manufacturer package drawing.
Recommended
Low-Power Sensor Node
The MCF51QU128VHS is suitable for compact sensor nodes where energy-conscious operation and local processing matter. Its verified 1.71 V to 3.6 V operating range supports battery- or low-voltage-rail designs, and the NXP family information highlights ultra-low-power capabilities. The ColdFire V1 core can process sensor data locally, while the 16-bit ADC is appropriate for monitoring input signals. Exact sleep-state current and wake-up timing require the complete datasheet.
Recommended
Portable Measurement Instrument
The MCF51QU128VHS can serve in a portable measurement instrument that combines sensor acquisition, control logic, and a compact display interface. Its 16-bit ADC supports analog measurement, while 128 KB of Flash provides storage for firmware and configuration data. The 50 MHz ColdFire V1 core offers processing headroom for sampling and control tasks. The 5 mm by 5 mm MAPBGA helps reduce footprint, although high-density assembly and careful power decoupling are necessary.
Recommended
Connected Equipment Controller
The MCF51QU128VHS can act as the local controller in connected equipment where a UART, flexible GPIO, and mixed analog inputs are useful. The verified general-purpose signal conditions include RGPIO, FTM, and UART, allowing the device to interface with sensors, actuators, and external communications hardware. Its 128 KB of Flash and 50 MHz core provide room for protocol handling and control firmware, while the small package supports dense boards.
Recommended
Compact Analog Monitoring System
The MCF51QU128VHS is appropriate for a compact analog monitoring system that needs both acquisition and embedded processing. The verified 16-bit ADC reduces the need for a separate high-resolution converter in suitable signal ranges, and the ColdFire V1 core can perform filtering, thresholding, and control functions. The 1.71 V to 3.6 V operating range supports low-voltage designs, while the 44-MAPBGA package limits physical footprint.
Recommended
Battery-Powered Field Sensor
The MCF51QU128VHS can be used in battery-powered field equipment where compactness, low-voltage operation, and local processing are important. The 1.71 V to 3.6 V range is compatible with low-voltage power architectures, and the MCU family is described as offering ultra-low-power capabilities. The 128 KB of Flash supports firmware and parameter storage, while the small 5 mm by 5 mm package supports miniaturized field nodes. Power-mode current must be verified from the full datasheet.
Recommended
Recommended Products Summary
Engineering reference data for MCF51QU128VHS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Package | 44-MAPBGA |
| Brand | NXP Semiconductors |
| Core | ColdFire V1 |
| Maximum Core Frequency | 50 MHz |
| Flash Memory | 128 KB |
| Operating Voltage | 1.71 V to 3.6 V |
| Ambient Temperature | -40°C to 105°C |
| ADC Resolution | 16-bit ADC |
Key Differentiators
- Confirmed 50 MHz ColdFire V1 processing capability (vs MCF51JU128VHS)
- 128 KB Flash with configurable embedded EEPROM capability (vs MCF51QM128VHS)
- Compact 5 mm by 5 mm package footprint (vs Cross-brand MCU candidates)
Design Notes
Place all decoupling capacitors as close as practical to the MCF51QU128VHS supply pins and follow the NXP datasheet’s recommended values and layout. The verified operating range is 1.71 V to 3.6 V, so supply transients and ground return paths must be controlled. For the 44-MAPBGA package, use the manufacturer land pattern and assembly process requirements rather than a generic BGA footprint.
Treat thermal management as a package-design issue because the MCU is supplied in a compact 44-MAPBGA package. Follow the official package drawing for exposed-pad or thermal-via treatment and verify the final board’s thermal performance with the actual copper, solder mask, and enclosure. The supplied snippets do not provide thermal resistance or power dissipation values, so no numerical thermal estimate is asserted here.
Do not select a substitute solely because its memory size or CPU frequency is similar. Verify the complete 44-pin mapping, voltage limits, ADC characteristics, peripheral multiplexing, Flash organization, startup behavior, and software support. The supplied alternatives search did not establish a pin-to-pin equivalent, and similarly named MCF51 family members may require different firmware or board changes.
Use the datasheet’s stated 25 pF load condition when evaluating general-purpose signals such as RGPIO, FTM, and UART. Keep high-speed or externally accessible signal paths short, provide a continuous ground reference, and validate rise and fall times with the actual external load. The supplied data does not specify every GPIO timing parameter, so timing-dependent interfaces must be checked in the full datasheet.
Compliance Information
The supplied data confirms an active NXP product and does not provide RoHS, REACH, lead-free, halogen-free, or conflict-minerals statements. No compliance claim is inferred.
