MC56F8146VFV - 16-Bit 128KB Flash 3.3V MCU | NXP
MPN: MC56F8146VFV ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.0047 | $1.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MC56F8146VFV Overview
A microcontroller is a programmable semiconductor device that combines a processor core, memory, and peripherals into one embedded-control component. The 16-bit MC56F8146VFV belongs to the microcontroller and embedded-processor hierarchy rather than a general-purpose personal computer processor. Its 128 KB flash memory provides nonvolatile program storage, while its 144-pin package exposes a broad set of I/O and control connections for external sensors, communication interfaces, actuators, and system support circuitry.
The key verified attributes are the 16-bit CISC architecture, 40 MHz operating frequency, 128 KB flash memory, 3.3 V supply, and 144-pin LQFP construction. The MC56F81xx family designation and 40 MHz core make the part suitable for control loops, industrial equipment, motor-related functions, embedded signal processing, and systems requiring a relatively large package pin count. The industrial temperature classification is specifically reported by the verified distributor data.
The product is commonly described as a digital signal processor because the MC56F81xx architecture combines control-oriented processing with signal-handling capabilities. Its 144-pin package is substantially larger than small 8-pin or 32-pin microcontrollers, allowing more peripheral connections and supporting systems with multiple digital I/O, communications, and control functions. The LQFP form factor also supports conventional surface-mount PCB assembly while providing generous perimeter access for routing.
Designers should confirm pin functions, electrical limits, clock requirements, memory organization, and peripheral availability against the official NXP MC56F8146VFV datasheet before finalizing a PCB. Although the supplied web data confirms the package, memory, voltage, core frequency, architecture, and industrial classification, it does not provide a complete pinout, electrical maximums, peripheral inventory, or detailed timing specifications. LCSC lists a starting price of $1.0047, while other distributor pricing and availability should be checked directly before purchasing. This page combines verified source data with explicit data gaps rather than inferring unconfirmed electrical values.
Drop-in alternatives for MC56F8146VFV — 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 MC56F8146VFV (same form factor and footprint) — differing in Package, RoHS Status, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesMC56F8146VFV Maximum Ratings & Electrical Characteristics
| Architecture | 16-bit CISC |
| Processor Family | MC56F81xx |
| Core Frequency | 40 MHz |
| Flash Memory | 128 KB |
| Supply Voltage | 3.3 V |
| Package | 144-pin LQFP |
| Package Code | LFQFP |
| Terminal Count | 144 |
| Terminal Form | Gull wing |
| Package Shape | Square |
| Temperature Grade | Industrial |
| Component Classification | Digital signal processor |
| Mounting Type | Surface mount |
| LCSC Starting Price | $1.0047 as of 2026-10-21 |
| Manufacturer | NXP Semiconductors |
| RoHS Status | unknown |
| REACH Status | unknown |
| AEC-Q100 Status | unknown |
MC56F8146VFV square Pin Configuration Guide
Pin configuration for MC56F8146VFV (square 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 MC56F8146VFV.
Refer to the datasheet for full pin configuration.
Typical Applications
MC56F8146VFV is suitable for 6 applications: Industrial embedded control, Digital signal processing controller, Motor and power-system control, Industrial communications hub, Instrumentation and measurement front end, Industrial data acquisition and logging.
Industrial embedded control
The MC56F8146VFV fits industrial embedded-control boards that need a 40 MHz 16-bit CISC processor, 128 KB of flash, and 144 external connections. Its large LQFP package provides access to a broad I/O perimeter for sensors, digital interfaces, status indicators, and actuator-control signals. Compared with a small 8-pin or 32-pin MCU, it offers substantially more package connectivity, while the 3.3 V supply requirement makes system power planning straightforward. Before layout release, confirm the exact peripheral assignments, operating-temperature limits, and electrical maximums in the official NXP documentation.
Recommended
Digital signal processing controller
The MC56F8146VFV is identified by verified distributor data as a digital signal processor and can suit embedded signal-processing control functions. Its 16-bit CISC core operates at 40 MHz, providing a concrete starting point for timing-sensitive control and signal-related tasks, while 128 KB flash stores firmware. The 144-pin LQFP is useful when a system needs multiple digital connections around the controller. Firmware engineers should verify the exact DSP peripherals, memory organization, interrupt behavior, and timing guarantees rather than infer capabilities solely from the processor-family name.
Recommended
Motor and power-system control
A 40 MHz 16-bit CISC controller with 144 pins is appropriate for evaluating centralized motor-control, power-conversion, or sequencing systems where many external control and feedback lines are needed. The 3.3 V supply aligns the MCU with modern low-voltage digital logic, while flash provides nonvolatile firmware storage for control algorithms and parameter sets. The package does not itself provide motor-drive outputs or power-stage isolation, so designers must add the required gate drivers, power devices, protection, and sensing circuitry. Verify timing, analog interfaces, and thermal requirements from the official datasheet.
Recommended
Industrial communications hub
MC56F8146VFV can serve as the central controller in an industrial communication hub because its 144-pin LQFP exposes many I/O resources for serial links, status signaling, and interface routing. The 40 MHz core supports responsive protocol and supervisory tasks, and 128 KB flash is available for stack configuration and application firmware. Actual UART, SPI, CAN, or other interface availability is not specified in the supplied snippets and must be checked before board commitment. Use the official pinout to avoid assigning communications functions to undocumented or unavailable pins.
Recommended
Instrumentation and measurement front end
The MC56F8146VFV's 16-bit architecture, 40 MHz operation, and large 144-pin package make it a candidate for instrumentation systems that combine signal conditioning, supervisory logic, display control, and communications. The 3.3 V digital supply is compatible with many embedded measurement boards, while flash retains configuration and calibration firmware. Whether the device is suitable for a particular analog front end depends on confirmed ADC, timer, comparator, and interface resources, none of which are supplied in the verified snippets. Confirm those resources and accuracy specifications in the NXP datasheet.
Recommended
Industrial data acquisition and logging
MC56F8146VFV can be evaluated for industrial data-acquisition and logging systems that require deterministic embedded processing and substantial external connectivity. The 40 MHz 16-bit core is suitable for supervisory acquisition logic, while 128 KB flash can hold firmware and configuration data; external storage may be required for larger logs. Its industrial temperature classification supports initial industrial suitability, subject to confirmation of the exact temperature and qualification specifications. The 144-pin footprint requires careful PCB routing and decoupling, and the final design must verify analog, timer, and communications resources in the official documentation.
Recommended
Recommended Products Summary
Engineering reference data for MC56F8146VFV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Package | 144-pin LQFP |
| Brand | NXP Semiconductors |
| Architecture | 16-bit CISC |
| Core Frequency | 40 MHz |
| Flash Memory | 128 KB |
| Supply Voltage | 3.3 V |
| Terminal Count | 144 |
| Temperature Grade | Industrial |
| Mounting Type | Surface mount |
| Verified Starting Price | $1.0047 as of 2026-10-21 |
Key Differentiators
- Large 144-pin package for high-pin-count embedded-control designs (vs MC56F8346MFVE)
- Confirmed 40 MHz operating frequency (vs MC56F8013VFAE)
- Verified 128 KB flash capacity (vs MC56F8255MLD)
Design Notes
The verified 3.3 V supply requirement should be treated as the starting point for power-tree design, not as a complete electrical specification. Place bulk and local decoupling capacitors close to the MCU supply and ground pins according to the official datasheet layout guidance. Confirm the exact supply tolerance, I/O levels, current limits, power-up sequencing, and absolute maximum ratings before selecting regulators or designing protection networks.
The 144-pin LQFP requires perimeter routing and careful inspection for solder bridges between fine-pitch leads. Follow the manufacturer's land pattern and thermal-pad recommendations exactly; do not infer dimensions from a generic LQFP drawing. Preserve access to all pins for test and programming, maintain a continuous ground reference where appropriate, and verify clearance to adjacent high-voltage or high-current circuitry.
The largest sourcing risk is assuming that any 144-pin 16-bit MCU is a drop-in replacement. Firmware, interrupt vectors, memory map, peripheral assignments, clocking, package ball or lead mapping, and toolchain support must all match. Use the exact NXP datasheet and errata, validate boot and peripheral functions on prototype hardware, and obtain manufacturer or authorized-distributor confirmation before substituting a part.
Because the verified data confirms 144 pins but does not identify individual signals, do not finalize a board from package dimensions alone. Download the exact MC56F8146VFV pinout, mark every power, ground, reset, clock, programming, and unused pin, and check the selected development tool connection. Review signal-integrity and clock-routing requirements in the official datasheet, especially for external oscillators, debug interfaces, and high-fanout digital connections.
Compliance Information
The supplied distributor data confirms industrial temperature grade and the package classification but does not provide verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. Confirm current compliance documentation from NXP or the authorized distributor.
