PIC24FJ32MC104-E/PT - 16-bit Motor Control MCU, 32KB Flash | Microchip
N.º de pieza: PIC24FJ32MC104-E/PT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.68 | $2,68 |
| 10 | $2.55 | $25,50 |
| 100 | $2.31 | $231,00 |
| 500 | $2.07 | $1.035,00 |
| 1.000 | $1.86 | $1.860,00 |
PIC24FJ32MC104-E/PT Descripción general
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (RAM), and a rich set of peripherals such as timers, ADC, communication interfaces, and I/O ports on one die. Within the broader embedded hierarchy, this part belongs to the 16-bit MCU class -> microcontroller -> embedded processor -> semiconductor IC. Motor-control MCUs like the PIC24FJ32MC104 extend the general-purpose MCU concept by adding dedicated PWM generators, fast ADC, and analog comparators that close the loop around power-converter or motor-driver stages.
Key features include three 16-bit MCPWM (Motor Control PWM) channels with complementary outputs and programmable dead-time, a 10-bit ADC with at least 500 ksps conversion rate, three on-chip analog comparators for back-EMF or current sensing, a Charge Time Measurement Unit (CTMU) for capacitive touch or temperature sensing, Peripheral Pin Select (PPS) for flexible signal routing, and a Real-Time Clock and Calendar (RTCC) with calendar mode. The 16 MIPS core runs most instructions in one cycle, giving deterministic control-loop timing for sensorless and sensored BLDC/PMSM drives.
Architecturally the device uses a 16-bit modified-Harvard RISC core with a 24-bit instruction word, a hardware multiplier for single-cycle MAC operations, and direct memory-mapped peripheral access. The MCPWM block supports edge-aligned, center-aligned, and variable-phase PWM, which is essential for field-oriented control. PPS allows remapping of digital peripherals to most I/O pins, simplifying PCB layout and reducing routing congestion.
Typical applications include 3-phase BLDC and PMSM motor drives, sensored and sensorless fan and pump controllers, low-cost ceiling fans, e-bike and e-scooter controllers, appliance motor control boards, and general industrial automation. The -E extended temperature and AEC-Q100 qualification also support automotive body and HVAC actuators.
Designers should budget for the external analog supply filter and ensure the on-chip voltage regulator is decoupled with at least a 10 uF bulk plus a 0.1 uF ceramic capacitor close to the VDD/VSS pair. PWM dead-time programming should be set greater than the power-stage turn-off delay to avoid shoot-through in half-bridge drivers.
This page synthesizes distributor pricing, drop-in same-family alternatives, AEC-Q100 qualification notes, and practical design considerations that go beyond the manufacturer datasheet summary.
Alternativas directas para PIC24FJ32MC104-E/PT — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC24FJ32MC104-E/PT (mismo factor de forma y huella) — difiere en Package, Operating Temperature, ADC, Core Architecture, Program Memory (Flash).
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC24FJ32MC104-I/PT
✅ Sustitución directa✓ En stock
$1.86 / unidad
Ver hoja de datos →PIC24FJ32MC104T-E/PT
✅ Sustitución directa✓ En stock
$2.55 / unidad
Ver hoja de datos →PIC24FJ32MC104-H/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24FJ32MC104-E/ML
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24FJ32MC104-I/ML
✅ Sustitución directa✓ En stock
$2.65 / unidad
Ver hoja de datos →PIC24FJ32MC104T-I/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
dsPIC33FJ16MC102-I/PT
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC24FJ32MC104-E/PT Valores máximos y características eléctricas
| Core Architecture | PIC24F 16-bit RISC (modified Harvard) |
| Program Memory (Flash) | 32 KB |
| Data Memory (SRAM) | 2 KB |
| CPU Speed | 16 MIPS |
| Max CPU Clock | 32 MHz (8 MHz internal oscillator with 4x PLL) |
| Encapsulado | 44-pin TQFP (PT), 10x10 mm |
| Operating Voltage | 3.0 V to 3.6 V |
| Temperatura de funcionamiento | -40C to +125C (extended, "E") |
| AEC-Q100 Qualification | Qualified (automotive grade) |
| Motor Control PWM (MCPWM) | 3 channels, 16-bit, complementary outputs with dead-time |
| ADC | 10-bit, 500 ksps, multiple channels |
| Analog Comparators | 3 on-chip |
| CTMU | Yes (Charge Time Measurement Unit) |
| Peripheral Pin Select (PPS) | Yes |
| RTCC | Yes (Real-Time Clock and Calendar) |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
Configuración de pines de PIC24FJ32MC104-E/PT
| Pin 1 | RC1/T2CK — I/O port / Timer2 clock input |
| Pin 2 | RC2/PWM1L — I/O port / PWM1 low-side output |
| Pin 3 | RC3/PWM1H — I/O port / PWM1 high-side output |
| Pin 4 | RC4/PWM2L — I/O port / PWM2 low-side output |
| Pin 5 | AVDD — Analog supply voltage |
| Pin 6 | AVSS — Analog ground |
| Pin 7 | RB0/AN0 — I/O port / analog input 0 |
| Pin 8 | RB1/AN1 — I/O port / analog input 1 |
| Pin 9 | RB2/AN2 — I/O port / analog input 2 |
| Pin 10 | RB3/AN3 — I/O port / analog input 3 |
| Pin 11 | RB4/AN4 — I/O port / analog input 4 |
| Pin 12 | RB5/AN5 — I/O port / analog input 5 |
| Pin 13 | RB6/AN6/PGC — I/O port / analog input 6 / ICSP clock |
| Pin 14 | RB7/AN7/PGD — I/O port / analog input 7 / ICSP data |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Digital supply voltage (3.0-3.6 V) |
| Pin 17 | RA0/AN8 — I/O port / analog input 8 |
| Pin 18 | RA1/AN9 — I/O port / analog input 9 |
| Pin 19 | RA2/AN10 — I/O port / analog input 10 |
| Pin 20 | RA3/AN11 — I/O port / analog input 11 |
| Pin 21 | RA4/AN12 — I/O port / analog input 12 |
| Pin 22 | RA5/AN13 — I/O port / analog input 13 |
| Pin 23 | RA6/OSC2 — I/O port / crystal oscillator output |
| Pin 24 | RA7/OSC1 — I/O port / crystal oscillator input |
| Pin 25 | RC5/PWM2H — I/O port / PWM2 high-side output |
| Pin 26 | RC6/PWM3L — I/O port / PWM3 low-side output |
| Pin 27 | RC7/PWM3H — I/O port / PWM3 high-side output |
| Pin 28 | RC8 — I/O port |
| Pin 29 | RC9 — I/O port |
| Pin 30 | RD0 — I/O port |
| Pin 31 | RD1 — I/O port |
| Pin 32 | RD2 — I/O port |
| Pin 33 | RD3 — I/O port |
| Pin 34 | RD4 — I/O port |
| Pin 35 | RD5 — I/O port |
| Pin 36 | RD6 — I/O port |
| Pin 37 | RD7 — I/O port |
| Pin 38 | RE0 — I/O port |
| Pin 39 | RE1 — I/O port |
| Pin 40 | RE2 — I/O port |
| Pin 41 | RE3 — I/O port |
| Pin 42 | RE4 — I/O port |
| Pin 43 | RE5 — I/O port |
| Pin 44 | RE6/MCLR — I/O port / Master Clear (reset) input |
Aplicaciones típicas
PIC24FJ32MC104-E/PT es adecuado para 7 aplicacións: 3-Phase BLDC Motor Drive, Sensored PMSM / Field-Oriented Control, Ceiling Fan and HVAC Fan Controller, Low-Voltage Servo / RC Motor Controller, Industrial Pump and Valve Actuator, E-Bike and E-Scooter Motor Controller, Capacitive Touch User Interface.
3-Phase BLDC Motor Drive
The PIC24FJ32MC104-E/PT drives small 3-phase brushless DC (BLDC) motors in appliances, fans, and pumps with up to ~1 kW rating. Its 3 MCPWM channels provide complementary 16-bit PWM outputs with programmable dead-time, eliminating shoot-through in half-bridge MOSFET or IGBT stages. The 3 on-chip analog comparators perform back-EMF zero-crossing detection for sensorless commutation or current-limit feedback for cycle-by-cycle protection. At 32 MHz and 16 MIPS, the CPU executes sensorless trapezoidal and field-oriented control (FOC) loops inside the PWM period, while the 32 KB Flash stores the state machine and tuning tables. The AEC-Q100 -E grade suits under-hood automotive applications and industrial inverters.
Recomendado
Sensored PMSM / Field-Oriented Control
For sensored PMSM drives using Hall sensors or encoders, the PIC24FJ32MC104-E/PT captures rotor position via interrupt-on-change inputs and generates synchronized SVM waveforms from the 3 MCPWM blocks. The 16 MIPS core is sufficient to run a Clarke-Park transform, PI current loop, and space-vector modulator at 8-20 kHz switching frequency. PPS routes the PWM outputs and QEI inputs to any digital I/O, simplifying PCB layout for compact motor-control boards. The 10-bit ADC reads phase currents through shunt resistors with sufficient resolution for low-cost FOC, while the 32 KB Flash holds sensor calibration tables and speed PI loops for HVAC compressors and e-bike drives.
Recomendado
Ceiling Fan and HVAC Fan Controller
The PIC24FJ32MC104-E/PT targets cost-sensitive AC or BLDC ceiling-fan controllers where its MCPWM delivers smooth speed control from 0 to 1500 RPM. The 3 analog comparators detect zero-crossings of the AC line or back-EMF of the BLDC stator, allowing simple commutation logic in 32 KB of Flash without external DSP. CTMU adds capacitive touch support for fan speed buttons, eliminating mechanical switches and improving the user interface. The AEC-Q100 qualification and -40C to +125C operation handle rooftop HVAC and outdoor fan installations. Power dissipation is minimal because the part is in a small 44-pin TQFP with low-power sleep modes below 20 uA.
Recomendado
Low-Voltage Servo / RC Motor Controller
For hobby-grade and industrial RC servos, the PIC24FJ32MC104-E/PT generates up to 3 channels of high-resolution PWM (1 us to 2 ms pulse widths) to command digital servos with sub-millisecond repeatability. The 16-bit PWM timer clocked at 32 MHz gives 488 ns PWM resolution, supporting smooth gimbal and robot-axis motion. UART and I2C interfaces connect to host MCUs or RC receivers, while RTCC keeps time-of-day for logging applications. The 2 KB SRAM is sufficient for trajectory tables and PID setpoints without external memory. Automotive qualification also makes this part a candidate for body-electronics actuators.
Recomendado
Industrial Pump and Valve Actuator
In industrial pumps, dosing pumps, and proportional valves the PIC24FJ32MC104-E/PT replaces older 8-bit MCUs by delivering deterministic 3-phase PWM, accurate ADC sampling, and industrial communication interfaces in a single chip. The 32 KB Flash stores Modbus or CANopen handling logic, while RTCC schedules pump cycles for water-treatment and process-control plants. The AEC-Q100 -E grade tolerates the -40C to +125C environment near hydraulic cabinets and outdoor installations. CTMU provides capacitive water-level detection, and the on-chip comparators protect against dry-running by sensing motor current. The wide AEC-Q100 stress margin extends equipment MTBF.
Recomendado
E-Bike and E-Scooter Motor Controller
Light electric vehicles such as e-bikes and e-scooters use the PIC24FJ32MC104-E/PT to drive 24-48 V BLDC hub or mid-drive motors up to ~500 W. The 3 MCPWM channels produce the 3-phase gate signals, the analog comparators monitor battery current for cut-off protection, and the ADC reads throttle position and brake levers. AEC-Q100 qualification gives confidence in vibration, thermal, and surge environments encountered on-road. PPS lets the same hardware serve 6-FET or 3-FET inverter topologies by remapping PWM outputs. RTCC timestamps ride data into a small external EEPROM for diagnostics, and the 32 KB Flash stores 6-step or FOC firmware for up to 4 riding modes.
Recomendado
Capacitive Touch User Interface
The CTMU peripheral inside the PIC24FJ32MC104-E/PT simplifies capacitive touch-button implementation for appliances and industrial HMIs, eliminating dedicated touch ICs. The CTMU measures capacitance changes on up to 32 channels with sub-pF resolution, supporting sliders, wheels, and proximity wake-up. Combined with the on-chip RTCC, designers can build user interfaces with timed backlight dimming, while the ADC and analog comparators monitor other analog signals on the same board. The -E temperature grade suits outdoor EV charging-station panels and solar inverter keypads. 2 KB SRAM and 32 KB Flash comfortably host capacitive-touch libraries plus a basic UI state machine.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC24FJ32MC104-E/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC24FJ32MC104-I/PT | PIC24FJ32MC104T-E/PT | PIC24FJ32MC104-H/PT | PIC24FJ32MC104-E/ML | dsPIC33FJ16MC102-I/PT |
|---|---|---|---|---|---|---|
| Package | 44-pin TQFP (PT), 10x10 mm | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin QFN (ML) - same pin count, different footprint | 44-pin TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB - same | 32 KB - same | 32 KB - same | 32 KB - same | 16 KB (-50%) |
| SRAM | 2 KB | 2 KB - same | 2 KB - same | 2 KB - same | 2 KB - same | 2 KB - same |
| CPU Performance | 16 MIPS / 32 MHz | 16 MIPS / 32 MHz - same | 16 MIPS / 32 MHz - same | 16 MIPS / 32 MHz - same | 16 MIPS / 32 MHz - same | 16 MIPS / 32 MHz - same |
| Operating Temperature | -40C to +125C (extended -E) | -40C to +85C (industrial -I) | -40C to +125C - same | -40C to +150C (high-temp) | -40C to +125C - same | -40C to +85C (industrial -I) |
| Core Type | PIC24F 16-bit MCU | PIC24F 16-bit MCU - same | PIC24F 16-bit MCU - same | PIC24F 16-bit MCU - same | PIC24F 16-bit MCU - same | dsPIC33 16-bit DSP MCU - different |
| Motor Control PWM Channels | 3 MCPWM (16-bit, complementary) | 3 MCPWM - same | 3 MCPWM - same | 3 MCPWM - same | 3 MCPWM - same | 3 MCPWM - same |
Diferenciadores clave
- AEC-Q100 automotive qualification on the -E/PT variant (frente a PIC24FJ32MC104-I/PT (industrial grade))
- Same TQFP-44 footprint across the MC104 family simplifies PCB reuse (frente a PIC24FJ32MC102 (28-pin SSOP))
- Dedicated MCPWM + 3 analog comparators + CTMU in one MCU (frente a dsPIC33FJ16MC102-I/PT (DSP MCU))
Notas de diseño
Decouple the PIC24FJ32MC104-E/PT VDD/AVDD pins with a 10 uF bulk plus 0.1 uF ceramic capacitor placed within 5 mm of each supply pin. The on-chip voltage regulator powers the digital core from VDD; a clean supply is critical because the 16 MIPS core and 10-bit ADC both draw transient current when the PWM module and ADC fire simultaneously. Add a ferrite bead between VDD and AVDD if the analog inputs measure small signals.
Route the PWM output traces as short and symmetric as possible from the PIC24FJ32MC104-E/PT to the gate-driver inputs. Each PWM transition has 16-bit resolution down to 61 ns at 32 MHz, so layout-induced skew can break dead-time and cause shoot-through in the half-bridge. Keep PWM traces away from analog input traces by at least 3x the trace-to-trace spacing to minimize capacitive coupling.
Estimated: at 32 MHz, 3.3 V VDD, and full peripheral activity, the PIC24FJ32MC104-E/PT draws ~30 mA active, dissipating ~100 mW. The 44-pin TQFP (PT) thermal resistance theta_JA is approximately 45 C/W on a 4-layer JEDEC test board, yielding a junction temperature rise of ~4.5 C above ambient. The -E grade (125 C maximum) easily accommodates this in sealed enclosures, but derate for high ambient temperatures above 85 C in outdoor motor cabinets.
Do not leave the MCLR pin floating on the PIC24FJ32MC104-E/PT - it must be pulled high through a 10 kOhm resistor to VDD for normal operation, and adding a 100 nF capacitor to ground creates an optional manual-reset pushbutton input. Forgetting PPS configuration is another common mistake: digital peripherals default to specific pins, and the PWM outputs and QEI inputs may need remapping in software before they appear on the desired physical I/O pins.
Información de cumplimiento
AEC-Q100 qualified per Microchip product page ordering information. RoHS and lead-free compliance confirmed via Microchip material declaration. REACH compliance status extracted from Microchip product environmental compliance page.