NXP Semiconductors MC56F83786MLK

Overview

MC56F83786MLK from NXP Semiconductors is a 32-bit digital signal controller (DSC) based on the 56800EX core, delivering 100 MIPS at 100 MHz. It integrates dual 12-bit ADCs (8+2 external + internal channels), two eFlexPWM modules with NanoEdge 312 ps resolution, FlexCAN with CAN-FD support, and 128 KB flash with ECC-targeting high-precision motor control in BLDC/PMSM inverters.

For engineers reviewing the MC56F83786MLK datasheet, MC56F83786MLK pinout, MC56F83786MLK application, or MC56F83786MLK equivalent, key selection criteria include NanoEdge PWM timing resolution, dual ADC synchronization capability, CAN-FD interface compliance, and -40°C to 105°C industrial temperature grade.

Technical Context

The MC56F83786MLK implements a unified 32-bit 56800EX DSP/MCU architecture with three address buses and four data buses enabling concurrent instruction fetch and dual data access per cycle. Its eFlexPWM subsystem supports 312 ps edge placement resolution via NanoEdge, and both ADCs feature programmable x1/x2/x4 gain amplifiers with hardware-triggered parallel scan mode.

Core clocking uses an on-chip 48 MHz IRC or external 4–16 MHz crystal, feeding a PLL optimized for 150–450 MHz output. The inter-module crossbar (XBAR) enables deterministic routing of ADC triggers, PWM fault signals, and comparator outputs across peripherals without CPU intervention.

Key Specifications

Pinout & Package

MC56F83786MLK is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow NXP's MC56F83xxx family layout, where primary functions are active after reset and alternate functions require GPIO/SIM register configuration.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC56F83786MLK, MC56F83789MLK offers higher memory capacity without altering peripheral timing or interface compatibility, while TMS320F280049CPT trades CAN-FD integration and analog gain flexibility for math acceleration-making MC56F83786MLK optimal for cost-sensitive, CAN-FD–enabled inverter designs requiring minimal external components.

Availability

MC56F83786MLK is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, uninterruptible power supplies, and medical power systems requiring stable component supply across extended production lifecycles.

Supply support for MC56F83786MLK 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.

The MC56F837xx family targets high-performance motor control and power conversion, combining DSP-level computation with MCU usability and industrial-grade robustness in a single-chip DSC platform.

FAQ

What is the maximum ADC sampling rate supported by the MC56F83786MLK?

The MC56F83786MLK supports a maximum ADC clock frequency of 25 MHz, enabling a single conversion time of 10 ADC clock cycles (400 ns) and additional conversion time of 8 cycles (320 ns). With parallel scan mode, both ADCs can acquire synchronized samples at up to 2.5 MSPS aggregate rate-sufficient for 20 kHz PWM carrier-based current control loops.

Does the MC56F83786MLK support CAN-FD, and what is its data rate capability?

Yes, the MC56F83786MLK integrates a FlexCAN module compliant with CAN FD protocol specification, supporting data rates up to 5 Mbit/s in the flexible data phase. It implements 32 configurable message buffers with DMA support and full CAN 2.0B backward compatibility-enabling high-bandwidth diagnostics and firmware updates in industrial networks.

What package type and pin count does the MC56F83786MLK use?

The MC56F83786MLK is supplied in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. This matches the smallest footprint option in the MC56F837xx family and is validated for operation from -40°C to 105°C ambient temperature under industrial power supply conditions.

How does the NanoEdge PWM feature improve timing precision in the MC56F83786MLK?

The NanoEdge PWM in the MC56F83786MLK delivers 312 ps resolution for period, duty cycle, and deadtime registers-achieving sub-nanosecond edge placement accuracy. This enables precise gate drive timing for wide-bandgap devices (SiC/GaN), reduces switching losses by optimizing deadtime margins, and improves harmonic performance in high-frequency inverters operating above 50 kHz.

Is the MC56F83786MLK qualified for automotive applications?

No, the MC56F83786MLK is rated for industrial temperature range (-40°C to 105°C) and is not AEC-Q100 qualified. For automotive-grade variants, NXP offers the MC56F837xxA series (e.g., MC56F83786MLKA), which undergoes AEC-Q100 stress testing and supports extended temperature operation up to 125°C ambient.