NXP Semiconductors MC56F82746VLF

Overview

MC56F82746VLF from NXP Semiconductors is a 32-bit digital signal controller (DSC) based on the 56800EX core, operating at up to 100 MHz in fast mode with 64 KB flash and 8 KB RAM. It integrates dual 12-bit ADCs (8-channel each), four analog comparators with 6-bit DAC references, two 12-bit DACs, and one eFlexPWM module with eight high-resolution NanoEdge PWM outputs. It targets motor control (BLDC/PMSM), switched-mode power supplies, and industrial embedded systems requiring deterministic real-time processing.

For engineers reviewing the MC56F82746VLF datasheet, MC56F82746VLF pinout, MC56F82746VLF application, or MC56F82746VLF equivalent, key selection criteria include its 48-pin LQFP package, -40°C to 105°C V-temp grade, 3.0–3.6 V supply, 5 V–tolerant I/O (except RESETB), and support for QSCI/QSPI/I²C/MSCAN interfaces - all critical for cost-sensitive, thermally constrained industrial control designs.

Technical Context

The MC56F82746VLF implements the 56800EX core with modified dual-Harvard architecture, enabling concurrent instruction fetches and dual data accesses per cycle. Its unified DSP/MCU architecture delivers 100 MIPS at 100 MHz while supporting fractional/integer arithmetic, hardware MAC, and zero-overhead context switching via full register shadowing.

Peripherals are interconnected via dual inter-module crossbar switches and AND-OR-INVERT logic, enabling flexible routing of ADC triggers, PWM synchronization, comparator outputs, and timer events without software intervention. The eFlexPWM module supports independent deadtime insertion, complementary pair configuration, and FORCE_OUT event-driven simultaneous output updates - essential for precise gate drive timing in motor inverters.

Key Specifications

Pinout & Package

MC56F82746VLF is housed in a 48-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow NXP's standardized MC56F827xx signal mapping for 48-pin variants, including dedicated VDD/VSS/VDDA/VSSA rails, JTAG debug interface (TCK/TMS/TDI/TDO), and GPIO-peripheral multiplexing controlled via SIM and GPIOx_PER registers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC56F82746VLF, MC56F82748MLH offers enhanced peripheral scalability for complex systems, while MC56F82743VLC trades features for size and cost - making MC56F82746VLF the optimal balance of analog capability, communication flexibility, and 48-pin thermal/mechanical performance in mid-tier industrial DSC applications.

Availability

MC56F82746VLF is available at Aetrix Electronics and suitable for industrial motor control, switched-mode power supplies, home appliance inverters, and photovoltaic microinverters requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC56F82746VLF 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 applications, with deep expertise in mixed-signal microcontrollers and digital signal processors.

The MC56F827xx product line was designed specifically for high-performance, cost-sensitive industrial control applications - integrating DSP-level computation with MCU-level peripheral flexibility to replace discrete controller + signal processor combinations in motor drives and power electronics.

FAQ

What is the maximum operating frequency of the MC56F82746VLF core?

The MC56F82746VLF core operates at up to 100 MHz in fast mode, delivering 100 million instructions per second (MIPS). This frequency is achieved using the internal PLL with an 8–16 MHz crystal reference; the device also supports 50 MHz operation in normal mode for lower-power applications. The 56800EX architecture ensures deterministic timing at this speed, making MC56F82746VLF suitable for hard real-time motor control loops.

Does the MC56F82746VLF support CAN communication?

Yes, the MC56F82746VLF includes a Modular/Scalable Controller Area Network (MSCAN) module compliant with CAN 2.0 A/B protocol, supporting standard/extended frames, programmable bit rates up to 1 Mbit/s, and message buffering with individual Rx masks. This capability is confirmed in the MC56F827XXDS datasheet Table 1, where MSCAN is marked as present for the MC56F82746VLF variant.

What package type and pin count does the MC56F82746VLF use?

The MC56F82746VLF uses a 48-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. This is explicitly specified in the MC56F827XXDS datasheet Table 1 under "Package pin count" for the MC56F82746VLF row, distinguishing it from 64-pin and 32-pin variants in the same family.

How much on-chip memory does the MC56F82746VLF provide?

The MC56F82746VLF integrates 64 KB of on-chip flash memory and 8 KB of dual-port data/program RAM. Both memory blocks can be mapped into either program or data address spaces, enabling flexible code/data partitioning. These values are consistent across all MC56F82746 variants (VLF/MLF) and are documented in the MC56F827XXDS datasheet Section 1.4 and Table 1.

What is the operating temperature range for the MC56F82746VLF?

The MC56F82746VLF is rated for operation from -40°C to +105°C, corresponding to the "V" temperature option defined in the MC56F827XXDS datasheet. This industrial-grade range is validated per NXP's qualification standards and supports deployment in demanding environments such as motor drives and power supplies without derating.