NXP Semiconductors MC56F8006MLC

Overview

MC56F8006MLC from NXP Semiconductors (formerly Freescale) is a 16-bit digital signal controller (DSC) built on the 56800E core, integrating DSP performance and MCU control in a single chip. It delivers up to 32 MIPS at 32 MHz, features 16 KB flash, 2 KB unified RAM, dual 12-bit ADCs (400 KSPS), six PWM outputs with dead-time control, and two programmable gain amplifiers (up to 32× gain). It targets cost-sensitive motor control applications including BLDC and PMSM drives in home appliances and industrial equipment.

For engineers reviewing the MC56F8006MLC datasheet, MC56F8006MLC pinout, MC56F8006MLC application, or MC56F8006MLC equivalent, key selection criteria include its 48-pin LQFP package, 1.8–3.6 V operation, -40°C to +125°C temperature range, integrated COP watchdog with multiple clock sources, and support for LIN slave communication via SCI - all critical for safety-compliant embedded motor control designs.

Technical Context

The MC56F8006MLC implements a dual-Harvard 56800E core with three parallel execution units enabling up to six operations per instruction cycle. Its architecture supports hardware DO/REP loops, four 36-bit accumulators, and a single-cycle 16×16 MAC - optimized for real-time control math and C-compiled firmware.

Peripherals are tightly synchronized: the PDB triggers PGA sampling and ADC conversions with sub-microsecond precision; PWM modules accept fault inputs with digital filtering; and dual ADCs support simultaneous conversion triggered by PWM edges or PDB events - enabling deterministic current sensing in field-oriented control (FOC) loops.

Key Specifications

Pinout & Package

MC56F8006MLC is housed in a 48-pin LQFP package (7 mm × 7 mm, 0.5 mm pitch, case 932-03), with exposed pad for thermal dissipation. All I/O pins support 20 mA sink/source, configurable slew rate, hysteresis, and pull-up options. Power domains include separate analog (VDDA/VSSA) and digital (VDD/VSS) supplies.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC56F8006MLC, MC56F8257VLH offers greater compute headroom and peripheral density but requires PCB redesign; MPC5604B adds safety certification and CAN FD at significantly higher cost and power - making MC56F8006MLC optimal for cost-driven industrial and appliance motor control where functional safety is not mandated.

Availability

MC56F8006MLC is available at Aetrix Electronics and suitable for industrial motor drives, home appliance control systems, and handheld power tools requiring stable component supply across extended production lifecycles.

Supply support for MC56F8006MLC 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 focused on secure connectivity solutions for automotive, industrial, IoT, and mobile applications.

The MC56F8006MLC belongs to NXP's legacy 56800E-based digital signal controller family, designed specifically for cost-sensitive, high-efficiency motor control and power conversion applications requiring integrated analog front-ends and deterministic real-time performance.

FAQ

What is the maximum ADC sampling rate supported by the MC56F8006MLC?

The MC56F8006MLC supports up to 400 KSPS for 10- or 12-bit conversions and 470 KSPS for 8-bit results. This rate is achievable when using simultaneous triggering from the PDB or PWM modules, and it applies to both ADC modules (ADCA and ADCB) operating in coordinated mode - critical for high-fidelity current sensing in fast-switching motor drives.

Does the MC56F8006MLC support LIN communication?

Yes, the MC56F8006MLC supports LIN 2.1 slave functionality through its SCI module. The SCI includes dedicated LIN header detection, automatic checksum calculation, and wakeup-on-break detection - enabling seamless integration into LIN-based subsystems such as appliance user interfaces or HVAC actuators without external protocol translators.

What package type is used for the MC56F8006MLC?

The MC56F8006MLC uses a 48-pin LQFP package (7 mm × 7 mm, 0.5 mm pitch, case number 932-03) with an exposed thermal pad. This package provides optimal thermal performance for motor control applications while maintaining compatibility with standard surface-mount assembly processes and reflow profiles.

Can the MC56F8006MLC operate from a single 3.3 V supply?

Yes, the MC56F8006MLC operates across a 1.8 V to 3.6 V supply range, making 3.3 V fully compliant. Both digital (VDD) and analog (VDDA) supplies must be within this range; separate decoupling is required for VDDA to ensure ADC/PGA accuracy, and the internal 1.2 V regulator derives core voltage from VDD.

How many PWM fault inputs does the MC56F8006MLC provide?

The MC56F8006MLC provides four dedicated PWM fault inputs (FAULT0–FAULT3), each with programmable digital filtering and independent assignment to PWM channels. These inputs can trigger immediate forced shutdown of PWM outputs with configurable blanking time - essential for overcurrent and overtemperature protection in inverter stages.