PIC24FJ32MC104-E/TL
PIC24FJ32MC104-E/TL - 16-bit 32KB Flash Motor Control MCU | Microchip
The Microchip PIC24FJ32MC104-E/TL is a 16-bit PIC24F microcontroller purpose-built for low-cost, high-performance motor control, offering 32KB of Flash program memory, 2KB of SRAM, and a 16 MIPS core running at 32 MHz. Packaged in a 44-pin VTLA (6x6 mm) surface-mount LGA/QFN-style land-grid array, the device integrates advanced motor-control peripherals including Motor Control PWMs (MCPWM), a Charge Time Measurement Unit (CTMU), and Peripheral Pin Select (PPS) for flexible signal routing on a low-pin-count footprint.
A 16-bit microcontroller (MCU) is a single-chip processor that combines a 16-bit CPU core, non-volatile program memory (Flash), volatile working memory (SRAM), and a rich set of on-chip peripherals such as timers, ADCs, communication interfaces, and PWM channels. The PIC24F family sits within Microchip's broader taxonomy of PIC microcontroller -> 16-bit MCU -> motor-control MCU -> power-conversion and motion-control subsystem, and is widely used in appliances, fans, pumps, small drones, and consumer-embedded systems.
Key features include 16 MIPS performance at 32 MHz, 32KB Flash (11K x 24 words), 2KB SRAM, an integrated MCPWM with dedicated fault inputs, multiple 16-bit timers, a 10-bit A/D converter, and CTMU support for capacitive touch and current measurement. PPS allows most digital peripherals to be remapped to a wide range of I/O pins, simplifying PCB routing in compact motor-drive layouts. The CTMU enables time-based current sensing and touch sensing without external analog front-ends.
Architecturally, the PIC24FJ32MC104-E/TL uses a modified Harvard architecture with a 16-bit data path, hardware multiplier, and deterministic interrupt latency, which is essential for closed-loop field-oriented control (FOC) and trapezoidal commutation. The MCPWM block includes independent duty-cycle and period registers plus a dedicated PWM fault input that can shut down outputs within one PWM cycle when an overcurrent event is detected by an external comparator.
Typical applications include BLDC and PMSM motor control, sensorless fan and pump drivers, small appliance motor boards (mixers, blenders, hair tools), RC servo and drone ESC prototypes, and general-purpose low-pin-count industrial control. The wide operating voltage range and on-chip CTMU also enable capacitive user-interface buttons alongside the motor drive.
When designing with this device, place bypass capacitors (100 nF ceramic plus 4.7 uF or 10 uF bulk) within 5 mm of every VDD/VSS pair and ensure the exposed thermal pad is soldered to a continuous ground plane for thermal dissipation. Use the dedicated PWM fault pin to gate the MCPWM outputs whenever a hardware overcurrent trip occurs, never rely solely on firmware to disable the inverter.
This page synthesizes distributor pricing, drop-in alternatives in the same 44-VTLA footprint, and practical motor-control design notes not found in a single manufacturer datasheet, giving engineers a one-stop reference for sourcing and qualifying PIC24FJ32MC104-E/TL.
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