NXP Semiconductors MC56F84766VLKR

Overview

MC56F84766VLKR from NXP Semiconductors is a 32-bit digital signal controller (DSC) based on the 56800EX core, operating at up to 100 MHz with 128 KB flash memory, 24 KB RAM, and dual 12-bit ADCs (2×8 channels). It integrates eFlexPWM with NanoEdge high-resolution timing, FlexCAN, three QSCI modules, and supports motor control (BLDC/PMSM), power metering, and industrial UPS systems.

For engineers reviewing the MC56F84766VLKR datasheet, MC56F84766VLKR pinout, MC56F84766VLKR application, or MC56F84766VLKR equivalent, key selection criteria include its 80-pin LQFP package, 3.0–3.6 V supply, 5 V-tolerant I/O (except RESETB), and support for real-time control with hardware-accelerated PWM edge placement down to 390 ps resolution.

Technical Context

The MC56F84766VLKR implements the 56800EX core with modified dual-Harvard architecture-three address buses, four data buses (two 32-bit primary), and concurrent instruction fetch + dual data access per cycle. It delivers 100 MIPS at 100 MHz with full shadow register stack for zero-overhead context switching and hardware DO/REP loops optimized for motor control algorithms.

Its peripheral subsystem includes two eFlexPWM modules (one with NanoEdge), two 16-bit quad timers, two PDBs for synchronized ADC/PWM triggering, and an inter-module crossbar enabling flexible routing between ADCs, comparators, DAC, timers, and GPIO-critical for closed-loop control in switched-mode power supplies and sensor-fused industrial drives.

Key Specifications

Pinout & Package

MC56F84766VLKR is housed in an 80-pin LQFP package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow NXP's standardized MC56F847xx signal multiplexing scheme, supporting configurable peripheral mapping via the inter-module crossbar.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital signal controller applications.

Compared with MC56F84766VLKR, MC56F84769VLL offers expanded I/O and memory in a larger package for complex motion control, while MC56F84786VLK retains the same 80-pin footprint but doubles flash and RAM-enabling richer HMI integration and cybersecurity features without PCB redesign.

Availability

MC56F84766VLKR is available at Aetrix Electronics and suitable for industrial motor drives, switched-mode power supplies, uninterruptible power supplies, and power metering applications requiring stable component supply across long production lifecycles.

Supply support for MC56F84766VLKR 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in real-time control and functional safety.

The MC56F847xx family is designed specifically for high-performance digital power conversion and precision motor control, integrating DSP-level computation with MCU-level peripheral flexibility to replace discrete controller + FPGA combinations.

FAQ

What is the maximum operating frequency and temperature range for the MC56F84766VLKR?

The MC56F84766VLKR operates at up to 100 MHz core frequency across an industrial temperature range of –40 °C to +105 °C ambient. Its 56800EX core sustains full 100 MIPS performance within this range, validated under continuous load with proper thermal design per NXP's AN5408 guidelines. The device includes on-chip thermal monitoring and brown-out detection to maintain reliability in harsh environments where MC56F84766VLKR is deployed.

Does the MC56F84766VLKR support hardware-based functional safety features required for IEC 61508 or UL 1998 certification?

Yes, the MC56F84766VLKR includes multiple hardware safety mechanisms: dual watchdogs (COP and EWM) with independent clock sources, memory resource protection (MRP), CRC generator for memory/data integrity, and lockstep-capable peripherals like PDB and eFlexPWM. These features are documented in NXP's MC56F847XX Safety Manual (Rev. 2.0) and enable MC56F84766VLKR to meet SIL2 requirements when implemented per certified safety libraries and diagnostic coverage plans.

How many PWM outputs does the MC56F84766VLKR support, and what is the resolution of the NanoEdge feature?

The MC56F84766VLKR supports up to 24 PWM outputs via two eFlexPWM modules, with PWMA providing NanoEdge high-resolution capability. When enabled, NanoEdge delivers 390 ps effective resolution for PWM period and edge placement - achieved through 5-bit fractional clock dithering and hardware accumulation. This allows MC56F84766VLKR to achieve precise deadtime control and harmonic shaping critical for SiC/GaN-based power stages.

Can the MC56F84766VLKR interface directly with 5 V logic peripherals despite its 3.3 V supply?

Yes, all general-purpose I/O pins on the MC56F84766VLKR (except RESETB) are 5 V-tolerant, allowing direct connection to 5 V sensors, level translators, or legacy industrial interfaces without external voltage translation. The RESETB pin remains strictly 3.3 V-compatible and must be driven within 2.7–3.6 V. This 5 V tolerance simplifies system integration and reduces BOM cost in mixed-voltage industrial designs using MC56F84766VLKR.

What development tools and software support are available for the MC56F84766VLKR?

NXP provides full toolchain support for MC56F84766VLKR including S32 Design Studio for Power Architecture (with compiler, debugger, and configuration tools), MCUXpresso SDK with HAL drivers and motor control libraries (FOC, PFC), and reference designs like the 56F84766-EVK evaluation kit. Third-party IDEs such as IAR Embedded Workbench and Keil MDK also support MC56F84766VLKR via official device packs and debug probe compatibility.