NXP Semiconductors MC56F8247VLHR

Overview

MC56F8247VLHR from Freescale Semiconductor is a 60 MHz digital signal controller (DSC) based on the 56800E core, integrating DSP and MCU functionality in a unified C-efficient architecture. It features 48 KB flash, 8 KB unified RAM, dual 12-bit ADCs with 600 ns conversion time, eFlexPWM with 6-channel NanoEdge 520 ps resolution, and operates from 3.0–3.6 V for motor control in BLDC/PMSM inverters.

For engineers reviewing the MC56F8247VLHR datasheet, MC56F8247VLHR pinout, MC56F8247VLHR application, or MC56F8247VLHR equivalent, key selection criteria include its 44-pin LQFP package, 54 GPIOs, integrated MSCAN 2.0A/B, dual QSCI with LIN slave support, and on-chip 8 MHz relaxation oscillator with 400 kHz standby mode.

Technical Context

The MC56F8247VLHR implements a modified Harvard architecture with three parallel execution units enabling up to six operations per instruction cycle. Its 56800E core delivers 60 MIPS at 60 MHz and supports hardware DO/REP loops, 32-bit shifter, and single-cycle 16×16 MAC - optimized for real-time control code compiled in C.

Peripherals are interconnected via an inter-module crossbar (XBAR), enabling flexible routing of ADC triggers, PWM fault inputs, timer signals, and comparator outputs to GPIOs or internal modules. All peripherals - including eFlexPWM, ADCs, QSCI, QSPI, I²C, and MSCAN - can be independently disabled to reduce power consumption in run, wait, or stop modes.

Key Specifications

Pinout & Package

MC56F8247VLHR is housed in a 44-pin LQFP package measuring 10 × 10 mm² with exposed pad thermal design. Pin functions are multiplexed across GPIO, analog, PWM, serial, timer, and debug resources, with all non-power/non-reset pins configurable as general-purpose I/O.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC56F8246VLHR, MC56F8247VLHR provides 2 KB more RAM and full 8-channel dual ADC support - critical for real-time sensor fusion in motor drives. Against MC56F8257VLHR, it trades CAN and extra PWM capture for smaller footprint and lower unit cost, making it optimal for standalone inverter control without networked supervision.

Availability

MC56F8247VLHR is available at Aetrix Electronics and suitable for industrial motor control, solar inverter design, and battery management systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for MC56F8247VLHR 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

Freescale Semiconductor (now part of NXP Semiconductors) is a pioneer in mixed-signal microcontrollers and digital signal controllers, delivering high-performance, energy-efficient silicon for real-time embedded systems.

The MC56F82xx family was designed specifically for cost-sensitive, high-precision motor and power conversion applications - combining DSP-level computational throughput with MCU-style peripheral integration and C-compiler efficiency.

FAQ

What is the maximum operating frequency of the MC56F8247VLHR core?

The MC56F8247VLHR core operates at a maximum frequency of 60 MHz, delivering up to 60 million instructions per second (MIPS). This frequency is sustained across the full industrial temperature range (–40 °C to +105 °C) under 3.0–3.6 V supply conditions. The high-speed peripheral clock runs at 120 MHz, enabling fast serial communication and timer operation. MC56F8247VLHR uses an on-chip PLL to generate these clocks from internal or external sources.

Does the MC56F8247VLHR support CAN communication?

No, the MC56F8247VLHR does not include a Controller Area Network (CAN) module. While the broader MC56F825x/MC56F824x family includes MSCAN in select variants (e.g., MC56F8257VLHR), the MC56F8247VLHR variant omits this peripheral. It provides two I²C ports, two QSCI modules with LIN slave capability, and one QSPI interface instead. MC56F8247VLHR is intended for applications where CAN is not required, such as standalone motor drives or inverters using proprietary or LIN-based communication.

How many analog-to-digital converter channels does the MC56F8247VLHR have?

The MC56F8247VLHR integrates two independent 12-bit analog-to-digital converters (ADCs), each supporting 8 external input channels - for a total of 16 configurable analog inputs. Both ADCs feature programmable x1/x2/x4 gain amplifiers, 600 ns minimum conversion time, and hardware synchronization to eFlexPWM events via the crossbar. MC56F8247VLHR's dual-ADC architecture enables simultaneous sampling for current/voltage loop control in three-phase motor applications.

What package type and dimensions does the MC56F8247VLHR use?

The MC56F8247VLHR is supplied in a 44-pin LQFP (Low-Profile Quad Flat Package) with body dimensions of 10 mm × 10 mm and 0.8 mm lead pitch. It includes an exposed thermal pad on the underside for improved heat dissipation. This package matches the pinout configuration specified in Freescale document MC56F825X Rev. 4, Table 4, and is distinct from the 48-pin and 64-pin LQFP variants in the same family. MC56F8247VLHR's 44-pin layout balances I/O count, thermal performance, and PCB area efficiency for mid-complexity control applications.

Is the MC56F8247VLHR pin-compatible with other members of the MC56F824x family?

Yes, the MC56F8247VLHR is pin-compatible with other 44-pin LQFP variants in the MC56F824x family - specifically MC56F8245VLHR and MC56F8246VLHR - sharing identical mechanical footprint, power pin locations, and core peripheral mappings. However, functional differences exist: MC56F8247VLHR offers 8 KB RAM and full 8-channel dual ADC support, while MC56F8245/46 provide only 6 KB RAM and fewer ADC channels. MC56F8247VLHR retains identical GPIO, PWM, QSCI, and QSPI pin assignments across the 44-pin package group.