NXP Semiconductors MC56F80746VLF

Overview

MC56F80746VLF from NXP Semiconductors is a 32-bit digital signal controller (DSC) based on the 56800EF core, operating at 100 MHz with up to 100 MIPS performance. It integrates eFPU and CORDIC engines for real-time motor control math, features two 12-bit ADCs with x1/x2/x4 programmable gain amplifiers, and supports high-resolution PWM with 312 ps NanoEdge edge placement. It targets industrial inverters and motion control systems requiring deterministic timing and analog integration.

For engineers reviewing the MC56F80746VLF datasheet, MC56F80746VLF pinout, MC56F80746VLF application, or MC56F80746VLF equivalent, key selection criteria include its 64-pin LQFP package, -40°C to 105°C V-grade temperature range, 64 KB flash/8 KB RAM memory map, dual QSCI with LIN slave support, and eFlexPWM with 8-channel NanoEdge capability.

Technical Context

The MC56F80746VLF implements the 56800EF core with unified DSP/MCU architecture, supporting concurrent instruction fetch and dual data accesses per cycle. Its eFPU accelerates IEEE 754-2008 floating-point operations including sqrt, min/max, and format conversions, while the CORDIC engine computes trigonometric and hyperbolic functions in Q5.27 fixed-point format for motor vector control.

Analog subsystem includes two independent 12-bit cyclic ADCs (14-channel each), programmable gain amplifiers (x1/x2/x4), three comparators with integrated 8-bit DAC references, and two operational amplifiers configurable as PGAs up to x16 gain. The eFlexPWM module delivers 16-bit resolution with fractional delay and 312 ps edge placement when NanoEdge is enabled.

Key Specifications

Pinout & Package

MC56F80746VLF uses a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are multiplexed via GPIO and SIM registers; primary reset state assigns pins to core peripherals including eFlexPWM outputs, ADC inputs, QSCI/QSPI/LPI2C interfaces, and JTAG debug signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC56F80748VLF, MC56F80746VLF reduces PWM channel count while retaining identical core, ADC, and communication peripherals-making it optimal for 3-phase inverter designs where only six active PWM outputs are needed. Against TMS320F280049CPTT, MC56F80746VLF provides hardware-accelerated math (CORDIC/eFPU) and smaller footprint, trading flash capacity for analog integration and deterministic latency.

Availability

MC56F80746VLF is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, and uninterruptible power supplies requiring stable component supply across extended product lifecycles.

Supply support for MC56F80746VLF 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MC56F80xxx family was designed specifically for cost-sensitive, high-performance digital signal control in industrial power conversion and motion systems-emphasizing analog integration, real-time determinism, and functional safety readiness.

FAQ

What is the maximum ADC sampling rate supported by MC56F80746VLF?

The MC56F80746VLF supports a maximum ADC clock frequency of 12.5 MHz, enabling single conversion times as low as 80 ns (10 ADC clock cycles). With dual 12-bit cyclic ADCs, it achieves simultaneous sampling across 14 external channels per converter, making it suitable for high-bandwidth current and voltage acquisition in motor control loops.

Does MC56F80746VLF support hardware-based field-oriented control (FOC)?

Yes, MC56F80746VLF supports hardware-accelerated FOC through its integrated eFPU and CORDIC engine. The eFPU handles IEEE 754-2008 floating-point operations including sqrt and trigonometric functions, while the CORDIC computes sine/cosine in Q5.27 format-enabling real-time Clarke/Park transforms and PI regulator execution without software library overhead.

What communication interfaces does MC56F80746VLF include for industrial networking?

MC56F80746VLF includes two queued SCI (QSCI) modules with LIN 2.2 slave functionality, one queued SPI (QSPI) module supporting up to 25 Mbit/s, and one LPI2C module compliant with PMBus v1.2. These interfaces enable robust communication with sensors, gate drivers, and supervisory controllers in noisy industrial environments.

Is MC56F80746VLF qualified for automotive applications?

No, MC56F80746VLF is rated for V-grade (-40°C to +105°C) and M-grade (-40°C to +125°C) industrial operation but is not AEC-Q100 qualified. It targets industrial motor drives, UPS, and solar inverters-not automotive powertrain or ADAS systems requiring automotive-grade qualification.

How does the eFlexPWM module in MC56F80746VLF differ from standard PWM peripherals?

The eFlexPWM module in MC56F80746VLF provides 16-bit resolution with fractional delay and 312 ps NanoEdge edge placement-far exceeding standard 16-bit PWM resolution. It supports arbitrary edge positioning, independent deadtime insertion per complementary pair, and hardware synchronization to ADC triggers or external events, enabling precise timing-critical gate drive in SiC/GaN inverter designs.