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NXP Semiconductors

MC56F8346MFVE - 16-Bit 60MHz DSC | NXP | Motor Control

MPN: MC56F8346MFVE ✗ End of Life
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3.3 V Vdss 144-LQFP (20 mm × 20 mm) Package 60 MHz Speed 128 KB (64K × 16) Memory
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Price updated: 2026-10-20
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MC56F8346MFVE Overview

The NXP Semiconductors MC56F8346MFVE is a 16-bit digital signal controller with a 56800E core, 60 MHz processing capability, 128 KB of flash memory, and a 144-LQFP package. The DigiKey listing identifies the device as a 3.3 V, 16-bit microcontroller/DSC in a 20 mm × 20 mm LQFP package. Its combination of embedded control, signal processing, and enhanced PWM makes it relevant to motor-control and power-conversion systems.

A digital signal controller, or DSC, combines a microcontroller’s peripheral integration and deterministic control capabilities with a processor designed for demanding signal-processing work. The 56800E architecture sits between a general-purpose microcontroller and a digital signal processor: it supports embedded software control while adding processing capability for algorithms that benefit from a dedicated DSP core. This places the MC56F8346MFVE in the broader semiconductor and embedded-control hierarchy.

Verified listing information highlights a 60 MHz clock, 128 KB flash organized as 64K × 16, 16-bit architecture, 144 leads, and surface-mount construction. The NXP cross-reference snippet also describes enhanced PWM for motor control and power-conversion applications. These are meaningful selection criteria because PWM resolution and update behavior directly influence current-loop and switching-control performance.

The device is intended for embedded motor-control and power-conversion designs rather than general-purpose computing. Suitable implementation areas include digital motor controllers, inverter control, power-factor correction, and switching power supplies where deterministic control, fast peripheral access, and PWM generation are important. The exact peripheral configuration and memory behavior must be confirmed against the NXP manufacturer datasheet before design release.

Designers should review the LQFP-144 pinout, exposed-pad handling, clocking, power supplies, decoupling, and unused-pin requirements directly from the manufacturer documentation. Because the NXP product page labels the component as End of Life, procurement planning should include lifecycle verification, approved sourcing, and a review of available inventory rather than assuming long-term production support.

This page combines the verified manufacturer identification, distributor catalog data, lifecycle indication, and application-level engineering context. It also distinguishes catalog-confirmed facts from parameters requiring confirmation from the full datasheet, helping engineers plan replacement and redesign decisions without confusing similar 56F8xxx devices with verified drop-in alternatives.

Drop-in alternatives for MC56F8346MFVE — 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 MC56F8346MFVE (same form factor and footprint) — differing in Package, Supply Voltage.

NXP Semiconductors
Package: 144-LQFP (20x20 mm)
Supply Voltage: 2.5V / 3.3V
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MC56F8346MFVE Maximum Ratings & Electrical Characteristics

Product Type 16-bit digital signal controller
Processor Core 56800E
Data Bus Width 16 bit
Maximum Clock Frequency 60 MHz
Program Memory 128 KB (64K × 16)
Supply Voltage 3.3 V
Package 144-LQFP (20 mm × 20 mm)
Number of Pins 144 pins
Mounting Type Surface mount
Terminal Form Gull wing
Case Package Code LFQFP
Package Shape Square
Temperature Grade Automotive
PWM Support Enhanced PWM
Primary Application Motor control and power conversion
Lifecycle Status End of Life

MC56F8346MFVE square Pin Configuration Guide

Pin configuration for MC56F8346MFVE (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.

square package pinout diagram for MC56F8346MFVE

No detailed pinout data available for MC56F8346MFVE.

Refer to the datasheet for full pin configuration.

Typical Applications

MC56F8346MFVE is suitable for 6 applications: Brushless DC Motor Control, Power-Factor-Correction Control, Digital Inverter Control, Switching Power-Supply Control, Industrial Motor and Actuator Control, Sensor Signal Conditioning and Control.

🏭

Brushless DC Motor Control

The MC56F8346MFVE fits brushless DC motor-control work because the verified catalog data identifies a 56800E core operating at up to 60 MHz and enhanced PWM capability. A digital signal controller can combine current sampling, commutation sequencing, speed control, and protection logic in one embedded platform. The 16-bit architecture is suitable for fixed-point control calculations, while the enhanced PWM resources can drive inverter gate commands. Before finalizing a design, verify timer resolution, complementary outputs, fault inputs, and analog channels in the NXP datasheet. The principal trade-off is that an end-of-life controller requires lifecycle-aware sourcing and careful qualification for any redesign.

⚡

Power-Factor-Correction Control

For power-factor-correction systems, the MC56F8346MFVE provides a 60 MHz 56800E control platform with 16-bit processing and enhanced PWM. The controller can execute current-loop and voltage-loop algorithms while coordinating PWM switching and monitoring the power stage. The verified 3.3 V catalog specification supports integration into a digital power-conversion control design, but the external MOSFETs, gate driver, current sensor, and protection network determine the final power rating. Timing accuracy and analog signal quality should be validated against the full datasheet, especially under high dv/dt conditions. The part’s End of Life status makes a planned redesign or qualified inventory strategy especially important.

⚡

Digital Inverter Control

The MC56F8346MFVE is suited to digital inverter control because its 56800E digital signal controller core combines embedded-control peripherals with a 60 MHz clock and enhanced PWM. A three-phase inverter application can use PWM outputs for switching commands and control software for modulation, sequencing, current reconstruction, and fault handling. The 16-bit architecture supports efficient fixed-point arithmetic when the control loop is designed around deterministic execution. Package-level implementation requires a 144-LQFP layout with careful routing between control signals and the power stage. Since this is an end-of-life device, confirm the exact pin multiplexing and qualification status before committing a new production design.

⚡

Switching Power-Supply Control

The verified 60 MHz 56800E core makes the MC56F8346MFVE applicable to digital switching power-supply control, where the controller must regulate feedback, update PWM, and supervise protection functions. Its 16-bit data width can support fixed-point compensator calculations, while enhanced PWM helps coordinate the power stage. The verified 3.3 V catalog value is important for the control-signal domain, but the MCU will not directly determine the external power-conversion voltage or current without appropriate gate drivers, switches, magnetics, and sensing circuitry. Validate PWM frequency, duty-cycle resolution, ADC characteristics, and fault behavior in the NXP datasheet before release.

🏭

Industrial Motor and Actuator Control

The MC56F8346MFVE can serve as the central controller in industrial motor and actuator systems where local computation, PWM generation, and deterministic peripheral interaction are needed. The 56800E core and 60 MHz operating point provide computational margin for control-loop software, diagnostics, and communication tasks, while the 144-LQFP package exposes a broad pin count for external interfaces. The exact peripheral count, electrical limits, and package pin assignments are not supplied in the verified excerpts and must be confirmed from the NXP datasheet. Engineers should also plan obsolescence mitigation because the manufacturer page identifies the device as End of Life.

🧩

Sensor Signal Conditioning and Control

The MC56F8346MFVE can support embedded signal-conditioning tasks in motor and power-control systems by combining digital processing with control-oriented peripherals. A 16-bit digital signal controller is useful when sensor data requires filtering, scaling, calibration, or supervisory logic before it drives a control output. The verified data confirms the 56800E core, 16-bit bus, and 60 MHz clock, but it does not specify ADC resolution, sampling rate, converter latency, or sensor-interface count. Those parameters must be taken from the manufacturer datasheet rather than inferred from the clock rate. For safety-critical signal paths, verify analog accuracy, noise, timing, and external protection.

What is the NXP MC56F8346MFVE?
The NXP MC56F8346MFVE is a 16-bit digital signal controller based on the 56800E core. The verified DigiKey listing identifies 60 MHz operation, 128 KB of flash memory, a 3.3 V supply, and a 144-LQFP package. According to the NXP manufacturer datasheet, the device belongs to the 56F834X and 56F814X digital signal controller family and is intended for embedded control applications.
What are the key specifications of MC56F8346MFVE that engineers should know?
The key verified specifications are a 56800E core, 16-bit data bus, 60 MHz maximum clock, 128 KB flash organized as 64K × 16, 3.3 V operation, and a 144-LQFP package measuring 20 mm × 20 mm. The verified catalog material also identifies enhanced PWM capability for motor-control and power-conversion use. The NXP product page additionally labels the part End of Life, so availability and lifecycle planning require separate confirmation.
Where can I download the MC56F8346MFVE datasheet PDF?
The authoritative MC56F8346MFVE datasheet PDF is available from NXP at https://www.nxp.com/docs/en/data-sheet/MC56F8346.pdf. This manufacturer document covers the MC56F8346 and related 56F834X/56F814X devices. Octopart and other distributor pages can provide additional catalog access, but the NXP datasheet should be the primary reference for pinout, electrical limits, memory organization, and peripheral behavior.
Where can I find the MC56F8346MFVE pinout?
The MC56F8346MFVE pinout should be located in the NXP MC56F8346 technical datasheet, using the 144-LQFP package diagram and pin-description tables. The verified distributor data confirms a 144-pin LQFP package, but it does not provide the complete numbered pin list. Because pin multiplexing and alternate-function states can be important, the package diagram and pin table must be checked against the exact orderable suffix before PCB release.
Where can I buy MC56F8346MFVE online?
The verified distributor result lists MC56F8346MFVE on DigiKey and Mouser, while the NXP product page provides the manufacturer part record. The available snippets establish distributor search locations but do not provide a current numeric unit price or a confirmed stock quantity. Buyers should request a fresh quotation and availability check because the NXP page identifies the part as End of Life and the verified record does not state current inventory.
What is the price of MC56F8346MFVE?
The verified data does not provide a numeric MC56F8346MFVE unit price, so the price cannot be stated reliably. DigiKey and Mouser product pages are identified in the search results, but the snippets do not expose a current price. Obtain a dated quotation directly from an authorized distributor or NXP, and record the price, quantity, and currency before comparing supply options. Pricing should be treated as unknown as of 2026-10-20.
What is the lead time for MC56F8346MFVE?
The verified information does not state a numeric lead time for MC56F8346MFVE. The NXP product page identifies the device as End of Life, while the distributor snippets confirm that the part is listed for sourcing but do not provide delivery commitments. For a production decision, request a written lead-time quotation and verify whether any stock is authorized, factory-reconditioned, or obsolete. The current lead time is unknown as of 2026-10-20.
Is MC56F8346MFVE in stock?
Current stock is not established by the verified data. DigiKey and Mouser are listed as product-search sources, but the provided snippets do not include inventory counts or an explicit in-stock statement. Because the NXP page says End of Life, check live distributor inventory and NXP purchasing options before making an availability assumption. Stock should be treated as unknown as of 2026-10-20.
Is MC56F8346MFVE suitable for motor control and power conversion?
Yes, the MC56F8346MFVE is positioned for motor control and power-conversion applications according to the verified NXP cross-reference result. Its 56800E core, 60 MHz clock, and enhanced PWM capability provide the main catalog-level reasons for selection. The exact PWM frequency, timer resolution, analog interfaces, control-loop performance, and thermal limits must still be verified in the manufacturer datasheet and reference designs.
How does MC56F8346MFVE compare with MC56F8346VFVE?
The verified comparison data identifies MC56F8346MFVE and MC56F8346VFVE as both NXP 16-bit 56800E microcontrollers in 144-LQFP packages, with the listed comparison showing 128 KB flash and 3.3 V operation for the target. The available data does not verify every suffix-specific difference, so do not treat the VFVE as a confirmed drop-in replacement. Compare the exact temperature, qualification, memory, peripheral, and lifecycle details before substituting it.
How does MC56F8346MFVE compare with MC56F8356MFVE?
The verified comparison search names MC56F8356MFVE as a related 56F8-series device, but it does not provide enough verified data to establish pin-to-pin equivalence or parameter proximity with MC56F8346MFVE. Both names appear in an online comparison page, which is not sufficient evidence for a drop-in replacement. Use the NXP datasheets and product records to compare package pins, memory, peripherals, clocking, and application requirements before selecting an alternative.
What is the best drop-in replacement for MC56F8346MFVE?
The supplied cross-reference search does not verify a pin-compatible drop-in replacement for MC56F8346MFVE. MC56F8346VFVE and MC56F8356MFVE are named in comparison results, but neither has enough verified evidence here to qualify as a same-package, pin-to-pin replacement. For an end-of-life redesign, first identify whether exact pin compatibility is mandatory or whether a firmware and PCB migration is acceptable; otherwise, treat the replacement decision as unresolved.
Can MC56F8346VFVE replace MC56F8346MFVE?
MC56F8346VFVE cannot be declared a confirmed drop-in replacement from the supplied evidence. The available comparison data associates both parts with NXP, 16-bit 56800E operation, 128 KB flash, 3.3 V operation, and 144-LQFP packaging, which makes it a useful candidate for review. However, exact pin functions, temperature grade, qualification, peripheral configuration, and lifecycle terms require direct manufacturer verification before replacement.
Can an MC56F8356MFVE replace MC56F8346MFVE?
MC56F8356MFVE is not confirmed as a drop-in replacement by the verified data. The search results show a comparison relationship between the two NXP 56F8-series MPNs, but they do not prove identical pin assignments, memory behavior, PWM resources, or package-level electrical requirements. Use it only as a candidate for engineering review; complete a manufacturer-datasheet comparison and firmware impact assessment before considering substitution.
Is MC56F8346MFVE RoHS compliant?
The supplied verified records do not explicitly state RoHS compliance for MC56F8346MFVE. Therefore, the compliance status is unknown rather than assumed. The NXP product page contains environmental-quality information, but the provided excerpt does not provide a compliance declaration. Obtain the current NXP material declaration or distributor documentation before making a procurement or regulatory determination.
Does MC56F8346MFVE support automotive temperature grading?
The verified component listing identifies MC56F8346MFVE with an automotive temperature grade, but the exact temperature range and qualification status are not included in the supplied data. This means the grade classification is supported as catalog metadata while the detailed limits remain to be confirmed from the NXP datasheet. Do not infer AEC-Q100 qualification or a specific temperature range without the applicable NXP document.

Engineering reference data for MC56F8346MFVE — comparison, design guidance, and compliance information.

Selection Guide

Choose MC56F8346MFVE when the design specifically needs the verified NXP 56800E digital signal controller, 60 MHz operation, 128 KB flash, 3.3 V operation, and enhanced PWM positioning for motor control or power conversion. MC56F8346VFVE is the closest candidate in the supplied comparison data because it shares the 56800E architecture, 16-bit format, 128 KB flash, 3.3 V specification, and 144-LQFP package, but it must still be verified for pin-level compatibility and suffix-specific differences. MC56F8356MFVE should be treated only as a related 56F8-series candidate until its package, peripherals, memory, and lifecycle status are confirmed. For new production, favor a currently supported redesign unless the original architecture is essential and the End of Life supply risk is formally mitigated.

Comparison with Alternatives

Parameter This Product MC56F8346VFVE MC56F8356MFVE
Package 144-LQFP (20 mm × 20 mm) 144-LQFP (20 mm × 20 mm) 144-LQFP (20 mm × 20 mm)
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors

Key Differentiators

  • 56800E digital signal controller architecture (vs MC56F8346VFVE)
  • Verified 60 MHz control-processing target (vs MC56F8346VFVE)
  • 128 KB flash and enhanced PWM suitability (vs MC56F8356MFVE)
  • Lifecycle-aware sourcing requirement (vs MC56F8346VFVE)

Design Notes

Begin the power design by following the exact supply, decoupling, ground, and exposed-pad requirements in the NXP datasheet. The verified distributor listing confirms 3.3 V operation for MC56F8346MFVE, but it does not provide the complete electrical table. Separate analog and digital return paths where the application permits, place bulk and high-frequency capacitors close to the supply pins, and verify startup current against the selected power source.

A 144-LQFP footprint has many fine-pitch leads, so preserve the manufacturer land pattern and pin numbering exactly. Keep switching-node and high-current paths away from sensitive control and signal-conditioning nets, use short ground returns, and route feedback and sensor traces away from inductive and switching circuits. Because the full pinout is not present in the verified snippets, do not release a PCB footprint until the NXP package drawing and pin table have been checked.

Do not infer that a related 56F8 MPN is a drop-in replacement merely because it appears in a comparison page. MC56F8346MFVE is identified as End of Life, and MC56F8346VFVE and MC56F8356MFVE require detailed pin, memory, peripheral, qualification, and firmware review. Treat the provided alternatives as engineering candidates until manufacturer documentation confirms pin compatibility, electrical limits, and software implications.

Use the datasheet power dissipation, ambient-temperature, and junction-temperature limits to establish the thermal design. For a controller such as MC56F8346MFVE, package dissipation depends on the selected clock, peripherals, I/O activity, and supply conditions rather than clock frequency alone. A thermal calculation must be labeled as an estimate if it is performed from design inputs, and production qualification should include worst-case ambient temperature and switching activity.

Compliance Information

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
Lead Free
Unknown
Halogen Free
Unknown
Conflict Minerals
Unknown

The supplied verified records identify an automotive temperature grade and an End of Life lifecycle status, but they do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations.

Data verified on: 2026-10-20 — data verified and curated by XAIPART's component engineering team

Related Searches

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Related Components & Terms

NXP Semiconductors MC56F8346MFVE MC56F8346 56800E digital signal controller microcontroller embedded control signal processing 16-bit data bus 60 MHz 128 KB flash 64K × 16 3.3 V enhanced PWM motor control power conversion 144-LQFP surface mount gull wing LFQFP automotive temperature grade End of Life MC56F8346VFVE MC56F8356MFVE RoHS REACH
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