PIC24EP32MC204-E/ML
PIC24EP32MC204-E/ML - 32KB Flash 60 MIPS 16-bit Motor MCU
The Microchip Technology PIC24EP32MC204-E/ML is a 16-bit PIC24E-family microcontroller engineered for high-performance, precision motor control. It integrates 32 KB (10.7K x 24) of Flash program memory and 4 KB of RAM, executes code at 60 MIPS (70 MIPS peak), and is housed in a 44-pin QFN (8x8 mm) package with an exposed thermal pad. The 'MC' suffix indicates dedicated on-chip motor-control peripherals, including PWM, quadrature encoder interface, and high-speed comparators.
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program/data memory, peripherals, and I/O on one die. PIC24E devices use a 16-bit modified-Harvard core with DSP-class instructions, sitting between 8-bit PIC MCUs and 32-bit ARM Cortex-M parts in Microchip's portfolio. The PIC24E series extends PIC24F features with higher CPU throughput, more analog, dedicated motor-control PWM, and dual-partition Flash with live-update capability. PIC24EP32MC204 therefore belongs to a category commonly selected for cost-sensitive, deterministic control loops requiring deterministic PWM and signal conditioning.
Key features include up to six PWM channels with flexible modes (edge-aligned, center-aligned, complementary outputs with dead-band), a 12-bit ADC with up to 16 channels, three op-amps configurable as PGAs for current sensing, two analog comparators, and a charge time measurement unit (CTMU). The 'E' temperature grade extends operation from -40C to +125C. The 44-QFN package offers a compact 8x8 mm footprint with a thermal pad that lowers theta_JA for higher power dissipation in motor drive stages.
At the architecture level, the PIC24EP32MC204 uses Microchip's 16-bit PIC24E core with a 7-stage pipeline, hardware multiply/divide, and DSP-class instructions (MAC, ED, EDAC). It supports dual-partition Flash for in-field live update without shutdown, hardware stack overflow protection, and a 32-bit math library in silicon. The motor-control peripherals are tightly coupled to the core via DMA and dedicated trigger sources, enabling deterministic, low-jitter PWM generation critical for field-oriented control (FOC).
Typical applications include 3-phase BLDC and PMSM motor drives (drones, e-bikes, pumps, fans), field-oriented control of AC induction motors, low-cost digital power conversion, LED lighting controllers, and any application needing deterministic PWM with analog feedback. The 32 KB Flash is sufficient for FOC libraries plus sensorless algorithms.
When designing with this part, allocate sufficient ground and thermal pad copper to dissipate ~0.7 W in 3-phase BLDC drive stages. Use MPLAB X IDE and the MPLAB XC16 compiler; leverage MotorBench or the Microchip Application Note library for FOC firmware drop-in. Ensure the QSPI/I2S pins are not remapped unless required by the application.
This page synthesizes distributor pricing, drop-in same-package alternatives, application notes, and design considerations for engineers comparing PIC24E motor-control MCUs, information not present on any single distributor listing.
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