NXP Semiconductors MC56F80646VLFR

Overview

MC56F80646VLFR from NXP Semiconductors is a 32-bit digital signal controller (DSC) based on the 56800EF core, operating at up to 100 MHz with 64 KB flash and 8 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 12 outputs-including 8 channels with 312 ps NanoEdge resolution-targeting industrial motor control and solar inverter systems.

For engineers reviewing the MC56F80646VLFR datasheet, MC56F80646VLFR pinout, MC56F80646VLFR application, or MC56F80646VLFR 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, LIN-capable QSCI interfaces, and hardware CORDIC/eFPU acceleration for real-time control math.

Technical Context

The MC56F80646VLFR implements the 56800EF core with unified DSP/MCU architecture, featuring single-cycle 32×32→64-bit MAC, eFPU compliant with IEEE 754-2008, and CORDIC engine for trigonometric/hyperbolic functions in Q5.27 format. Its memory map supports simultaneous program/data access to both flash and RAM.

Peripheral integration centers on deterministic real-time control: eFlexPWM enables sub-nanosecond edge placement via NanoEdge; dual 12-bit ADCs support synchronized sampling with 10-cycle conversion time and programmable pre-amplification; and the inter-module crossbar routes events between ADC, PWM, timers, and comparators without CPU intervention.

Key Specifications

Pinout & Package

MC56F80646VLFR is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are multiplexed via GPIOx_PER and SIM GPSx registers; all pins default to GPIO input after reset except JTAG and RESET_B.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC56F80746VLFR, the MC56F80646VLFR trades M-grade thermal rating for V-grade qualification-reducing cost while retaining identical PWM, ADC, and crossbar capabilities. Against dsPIC33CK256MP508-I/PT, it offers superior real-time math acceleration (CORDIC/eFPU) but less flash capacity, making it optimal for thermally constrained industrial inverters requiring deterministic FOC.

Availability

MC56F80646VLFR is available at Aetrix Electronics and suitable for industrial motor control, solar inverter, and uninterruptible power supply (UPS) applications requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability.

Supply support for MC56F80646VLFR 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 over 40 years of microcontroller innovation.

The MC56F80xxx family targets high-performance real-time control applications, combining DSP computational power with MCU flexibility to replace dual-chip solutions in motion, power, and sensor systems.

FAQ

What is the maximum operating frequency of the MC56F80646VLFR core?

The MC56F80646VLFR features a 32-bit 56800EF core rated for up to 100 MHz operation, delivering 100 MIPS performance. This frequency is achievable across the full V-grade temperature range (–40°C to +105°C) when supplied with 2.7–3.6 V and properly decoupled using the specified VCAP capacitor network. The core uses a modified dual-Harvard architecture with concurrent instruction fetch and dual data access capability.

Does the MC56F80646VLFR support LIN communication natively?

Yes, the MC56F80646VLFR includes two queued serial communication interface (QSCI) modules with integrated LIN slave functionality compliant with LIN 2.2. Each QSCI supports automatic header detection, checksum verification, and sleep/wake-up frame handling without CPU intervention. The LIN interface operates directly on the QSCI pins-no external transceiver is required for basic slave node implementation in automotive body electronics.

How many PWM outputs does the MC56F80646VLFR provide, and what is the finest resolution?

The MC56F80646VLFR integrates one eFlexPWM module supporting up to 12 PWM outputs, with 8 channels capable of NanoEdge placement at 312 ps resolution. This sub-nanosecond timing precision enables accurate deadtime insertion for SiC and GaN power devices. All PWM outputs are individually configurable for polarity, complementary pairing, and forced output states via hardware events.

What analog peripherals are integrated into the MC56F80646VLFR?

The MC56F80646VLFR integrates two independent 12-bit cyclic ADCs (ADCA and ADCB), each with 14 external input channels and a programmable x1/x2/x4 gain amplifier. It also includes three analog comparators with integrated 8-bit DAC references, two operational amplifiers configurable as PGAs or filters, and an on-chip temperature sensor. These resources support simultaneous current, voltage, and thermal monitoring in power conversion systems.

Is the MC56F80646VLFR pin-compatible with other members of the MC56F80xxx family?

Yes, the MC56F80646VLFR in 64-pin LQFP shares identical pinout and signal mapping with other 64-pin variants including MC56F80746VLFR and MC56F80648VLFR. This allows hardware reuse across performance tiers-e.g., upgrading flash size or temperature grade without PCB redesign. Pin compatibility is confirmed in Section 4 (Pinout) of the MC56F80XXX datasheet Rev. 2.1.