NXP Semiconductors MC56F80726VLF

Overview

MC56F80726VLF from NXP Semiconductors is a 32-bit digital signal controller (DSC) based on the 56800EF core, operating at up to 100 MHz with 32 KB flash and 6 KB RAM. It integrates dual 12-bit ADCs with x1/x2/x4 programmable gain amplifiers, three analog comparators with 8-bit DAC references, and an eFlexPWM module supporting up to 8 channels with 312 ps NanoEdge resolution. It targets industrial motor control, solar inverters, and UPS systems requiring real-time analog processing and high-resolution PWM timing.

For engineers reviewing the MC56F80726VLF datasheet, MC56F80726VLF pinout, MC56F80726VLF application, or MC56F80726VLF equivalent, key selection criteria include V grade temperature range (–40°C to +105°C), 64-pin LQFP package, 2.7–3.6 V single-supply operation, integrated eFPU and CORDIC engine for trigonometric acceleration, and LIN-capable QSCI interfaces for automotive-grade communication.

Technical Context

The MC56F80726VLF implements the 56800EF core with unified DSP/MCU architecture, supporting concurrent instruction fetch and dual data accesses per cycle. Its eFPU complies with IEEE 754-2008 for single-precision floating-point operations including sqrt, min/max, and format conversions, while the CORDIC engine performs trigonometric and hyperbolic functions in Q5.27 fixed-point format using iterative rotation mode.

Peripherals are tightly coupled via the Inter-Module Crossbar and Event Generator, enabling hardware-synchronized ADC sampling triggered by eFlexPWM events, comparator outputs, or timer overflows. The eFlexPWM submodule supports independent deadtime insertion per complementary pair, fractional delay for sub-nanosecond edge placement, and FORCE_OUT for simultaneous output updates - critical for synchronous gate driving in three-phase inverters.

Key Specifications

Pinout & Package

MC56F80726VLF is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Power pins include VDD (I/O supply), VDDA (analog supply), VSS (I/O ground), VSSA (analog ground), and VCAP (core regulator bypass). JTAG debug interface uses TDI, TDO, TCK, and TMS pins. All GPIOs default to input after reset and are configurable via GPIOx_PER and SIM GPSx registers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC56F80726VLF, MC56F80746VLF offers headroom for future firmware expansion and added analog front-end flexibility, while MC56F80723VLF trades peripheral richness for compactness and cost - making the MC56F80726VLF the optimal balance of I/O, memory, and analog capability in 64-pin industrial DSC designs.

Availability

MC56F80726VLF is available at Aetrix Electronics and suitable for industrial motor control, solar inverter development, and uninterruptible power supply (UPS) design requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MC56F80726VLF 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 is part of NXP's legacy DSC portfolio designed specifically for real-time motor control, power conversion, and sensor-intensive embedded systems requiring deterministic DSP+MCU performance in a single chip.

FAQ

What is the maximum operating frequency and core architecture of the MC56F80726VLF?

The MC56F80726VLF features a 32-bit 56800EF digital signal controller core with a maximum operating frequency of 100 MHz, delivering up to 100 MIPS. Its modified dual-Harvard architecture supports concurrent instruction fetch and dual data accesses per cycle, enabling deterministic real-time execution of motor control and power conversion algorithms. The core includes hardware DO/REP loops and bit-reverse addressing optimized for FFT-based signal processing.

Does the MC56F80726VLF support LIN communication, and how is it implemented?

Yes, the MC56F80726VLF supports Local Interconnect Network (LIN) communication through its two queued serial communication interface (QSCI) modules, both configured as LIN slaves. Each QSCI includes hardware support for LIN frame formatting, checksum calculation, and wakeup detection via idle-line or address-mark methods. No external LIN transceiver is required for basic slave functionality, though one is needed for physical layer interfacing to the bus.

What analog peripherals are integrated into the MC56F80726VLF, and how are they configured?

The MC56F80726VLF integrates two independent 12-bit cyclic ADCs (14-channel each), three analog comparators with integrated 8-bit DAC references, and one operational amplifier. The ADCs support programmable gain (x1/x2/x4), differential and single-ended inputs, and hardware-triggered sampling synchronized to PWM or timer events. The OPAMP can be configured as a PGA, voltage follower, or differential amplifier, with four selectable input multiplexer configurations managed by internal peripherals.

What is the PWM resolution capability of the MC56F80726VLF, and how is it achieved?

The MC56F80726VLF achieves 312 ps resolution for PWM period, duty cycle, and deadtime through its eFlexPWM module's NanoEdge feature. This ultra-fine timing is enabled by fractional delay logic and 6-bit addition to the base 16-bit counter, allowing sub-nanosecond edge placement without increasing clock frequency. All eight PWM outputs support independent polarity, deadtime, and reload control - essential for precise gate driving in SiC and GaN-based power stages.

What safety and reliability features does the MC56F80726VLF include for industrial applications?

The MC56F80726VLF includes multiple hardware-level safety features: a windowed Computer Operating Properly (COP) watchdog with programmable timeout and selectable clock sources (including 200 kHz IRC), an External Watchdog Monitor (EWM) with independent safe-mode output (EWM_OUT_b), Cyclic Redundancy Check (CRC) generator for memory and data integrity, and brown-out reset with low-voltage interrupt (LVI). These meet functional safety requirements for EN60730 Class B compliance in industrial power equipment.