NXP Semiconductors MC56F80738VLH

Overview

MC56F80738VLH 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 8 channels with 312 ps NanoEdge resolution. It targets industrial motor control, solar inverters, and UPS systems requiring real-time signal processing and precise PWM timing.

For engineers reviewing the MC56F80738VLH datasheet, MC56F80738VLH pinout, MC56F80738VLH application, or MC56F80738VLH equivalent, key selection criteria include its V-grade temperature range (–40°C to +105°C), 64-pin LQFP package, dual QSCI with LIN slave support, LPI2C with full PMBus compliance, and eFPU/CORDIC acceleration for floating-point and trigonometric computations in closed-loop control.

Technical Context

The MC56F80738VLH implements the 56800EF core with unified DSP/MCU architecture, enabling concurrent instruction fetch and dual data accesses per cycle. Its eFPU supports IEEE 754-2008 single-precision operations including sqrt, min/max, and format conversions, while the CORDIC engine computes trigonometric and hyperbolic functions in Q5.27 fixed-point format using iterative hardware.

Peripherals are tightly coupled via the Inter-Module Crossbar and Event Generator, allowing hardware-synchronized triggering between ADC conversions, eFlexPWM edge placement, and comparator outputs. The eFlexPWM submodule delivers 312 ps resolution with NanoEdge, independent deadtime control per complementary pair, and FORCE_OUT for simultaneous output updates - critical for IGBT gate driving in inverter topologies.

Key Specifications

Pinout & Package

MC56F80738VLH is housed in a 64-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are multiplexed via GPIOx_PER and SIM GPSx registers; primary reset state assigns pins to core peripherals including ADC inputs, PWM outputs, QSCI/LPI2C signals, and JTAG debug interface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC56F80738VLH, MC56F80748VLH offers identical timing/peripheral performance at lower flash density for cost-sensitive volume production, while TMS320F280049CPTT trades NanoEdge PWM and integrated DACs for larger memory and CLA offload - making it preferable only when firmware complexity exceeds 48 KB or CLA-accelerated control laws are required.

Availability

MC56F80738VLH is available at Aetrix Electronics and suitable for industrial motor control, solar inverter, and uninterruptible power supply applications requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability.

Supply support for MC56F80738VLH 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 was designed specifically for real-time digital power conversion and motion control, integrating DSP-level math acceleration with MCU-level peripheral flexibility in a single die - targeting applications where deterministic timing, analog integration, and functional safety coexist.

FAQ

What is the maximum operating frequency and core architecture of the MC56F80738VLH?

The MC56F80738VLH features a 32-bit 56800EF digital signal controller core rated for up to 100 MHz operation, delivering 100 MIPS performance. Its modified dual Harvard architecture supports concurrent instruction fetch and dual data accesses per cycle, with hardware DO/REP loops and bit-reverse addressing optimized for FFT and motor control algorithms. This architecture is confirmed in the official NXP MC56F80XXX datasheet Rev. 2.1 (02/2023), Section 1.2.

Does the MC56F80738VLH support hardware-accelerated floating-point math?

Yes, the MC56F80738VLH includes an enhanced single-precision Floating Point Unit (eFPU) compliant with IEEE 754-2008, supporting add/subtract/multiply/divide, sqrt, min/max, and data format conversions in hardware. It also integrates a CORDIC engine for trigonometric and hyperbolic functions in Q5.27 fixed-point format - both accelerators reduce CPU load for field-oriented control in the MC56F80738VLH.

What analog peripherals are integrated into the MC56F80738VLH?

The MC56F80738VLH integrates two independent 12-bit cyclic ADCs (each with 14 external channels and x1/x2/x4 programmable gain amplifiers), three analog comparators with integrated 8-bit DAC reference generators, two operational amplifiers configurable as PGAs or filters, and on-chip temperature sensors. These are documented in Table 1 and Sections 1.5.2–1.5.4 of the MC56F80XXX datasheet.

What is the PWM resolution capability of the MC56F80738VLH, and how is it achieved?

The MC56F80738VLH's eFlexPWM module achieves 312 ps resolution via NanoEdge technology - enabled by fractional delay logic and high-frequency clock domain partitioning. This allows arbitrary edge placement within the PWM period, critical for minimizing deadtime errors in SiC/GaN inverter stages. The specification is verified in Section 1.5.1 of the MC56F80XXX datasheet.

Which communication interfaces does the MC56F80738VLH support for power system monitoring?

The MC56F80738VLH supports two queued SCI modules with LIN slave functionality (ISO 9141-2), one queued SPI module, and one LPI2C module with full PMBus v1.2 compliance - enabling direct read/write access to power parameters like READ_VIN, READ_IOUT, and OPERATION commands. This makes the MC56F80738VLH suitable for smart power supply telemetry and fault logging.