NXP Semiconductors MC56F80748VLH

Overview

MC56F80748VLH 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 integrated 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 MC56F80748VLH datasheet, MC56F80748VLH pinout, MC56F80748VLH application, or MC56F80748VLH equivalent, key selection criteria include its 100 MHz DSC performance, V grade temperature range (–40°C to +105°C), 64-pin LQFP package, dual ADC synchronization capability via crossbar, and support for LIN slave communication over QSCI.

Technical Context

The MC56F80748VLH implements the 56800EF core with unified DSP/MCU architecture, including an enhanced single-precision FPU compliant with IEEE 754-2008 and a CORDIC engine for trigonometric/hyperbolic function acceleration. Its memory map supports flexible program/data space allocation across 64 KB flash and 8 KB RAM.

Peripheral integration centers on deterministic real-time control: the eFlexPWM module enables sub-nanosecond edge placement via NanoEdge, while dual 12-bit ADCs (14-channel each) support simultaneous sampling synchronized to PWM events through the inter-module crossbar. The device includes two operational amplifiers (gain up to x16), three comparators with hysteresis control, and full PMBus-compliant LPI2C.

Key Specifications

Pinout & Package

MC56F80748VLH uses a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with dedicated VDDA/VSSA pins for analog domain isolation, VCAP for core regulator stabilization, and separate JTAG debug pins (TDI/TDO/TCK/TMS). Power sequencing requires VDD ramp before VDDA, and VCAP must be decoupled with ≥2.2 µF ceramic capacitor to ground.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC56F80748VLH, MC56F80746VLH offers identical peripherals and timing capability at reduced memory capacity, while MC56F80648VLH sacrifices NanoEdge PWM and CPU speed for broader legacy compatibility-neither is pin-compatible due to differing peripheral enable register mappings despite shared 64-pin LQFP packaging.

Availability

MC56F80748VLH is available at Aetrix Electronics and suitable for industrial motor control, solar inverter design, and uninterruptible power supply development requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MC56F80748VLH 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 real-time digital power conversion and motion control, integrating DSP-grade math acceleration with MCU-level peripheral flexibility to replace discrete microcontroller + DSP combinations.

FAQ

What is the maximum operating frequency of the MC56F80748VLH core?

The MC56F80748VLH features a 32-bit 56800EF core rated for up to 100 MHz operation, delivering 100 MIPS performance. This frequency is achievable under specified conditions: VDD = 3.3 V, ambient temperature ≤ +105°C (V grade), and proper PCB layout with adequate power decoupling. The core derives its clock from the PLL, which accepts 8–16 MHz crystal inputs and generates a stable 100 MHz system clock.

Does the MC56F80748VLH support LIN communication?

Yes, the MC56F80748VLH supports LIN 2.2A slave functionality through its QSCI0 and QSCI1 modules. Each QSCI includes hardware LIN wakeup detection (idle-line and address-mark methods), 1/16 bit-time noise filtering, and automatic baud rate adjustment. The device does not implement LIN master mode or ISO 9141-2 compatibility; LIN operation requires configuration of QSCI registers and use of dedicated LIN transceivers on the board.

How many analog-to-digital converter channels does the MC56F80748VLH have?

The MC56F80748VLH integrates two independent 12-bit cyclic ADCs: ADCA and ADCB. Each supports 14 external analog input channels (ADCA0–ADCA13 and ADCB0–ADCB13), programmable gain amplification (x1/x2/x4), and hardware-triggered sampling. Both ADCs can operate simultaneously and synchronize conversions to eFlexPWM reload events via the inter-module crossbar, enabling precise current sensing in three-phase inverter topologies.

What is the purpose of the NanoEdge feature in the MC56F80748VLH eFlexPWM module?

The NanoEdge feature in the MC56F80748VLH eFlexPWM module provides 312 ps resolution for PWM edge placement, achieved through fractional delay logic and high-frequency clock domain partitioning. This enables sub-nanosecond deadtime control critical for SiC and GaN power devices, reduces switching losses in high-frequency converters, and supports advanced modulation schemes like space-vector PWM with dynamic zero-vector insertion. NanoEdge is enabled per submodule and requires configuration of the PWM fractional period register.

Is the MC56F80748VLH pin-compatible with other MC56F80xxx family members?

No, the MC56F80748VLH is not fully pin-compatible with other MC56F80xxx variants despite sharing the 64-pin LQFP package. While pin numbers and physical layout match, functional pin assignments differ across the family-for example, ADC input channels, PWM outputs, and communication interface signals vary between MC56F80748VLH and MC56F80648VLH. Board reuse requires verification of signal mapping against the specific variant's pinout table and GPIO peripheral enable register settings.