PIC24EP32MC204-I/PT - 70 MIPS 32KB Flash Motor Control MCU | Microchip
N.º de pieza: PIC24EP32MC204-I/PT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.94 | $2,94 |
| 10 | $2.78 | $27,80 |
| 100 | $2.45 | $245,00 |
| 500 | $2.1 | $1.050,00 |
| 1.000 | $1.85 | $1.850,00 |
PIC24EP32MC204-I/PT Descripción general
What is a 16-bit motor control MCU? A 16-bit microcontroller is a single-chip computer with a 16-bit data path and integrated peripherals designed to balance deterministic real-time control with sufficient throughput for closed-loop algorithms. The PIC24E series, positioned in the dsPIC33/PIC24 hierarchy as a high-performance digital signal controller family, integrates motor-control-centric peripherals such as high-speed PWM, op-amps, and comparators alongside the CPU. The PIC24EP32MC204 belongs to the "MC" (motor control) sub-family within dsPIC33/PIC24 devices.
Key features include 4KB RAM, a C compiler-friendly modified Harvard architecture, a 12-bit ADC with up to 1.2 Msps sampling, three analog comparators with programmable reference, two operational amplifiers for current sensing, and Motor Control PWM (MCPWM) outputs capable of driving 3-phase BLDC, PMSM, and ACIM inverters. The device operates from 3.0 V to 3.6 V and supports an industrial -40C to +85C temperature range.
On the silicon level, the PIC24EP32MC204 combines a 16-bit modified-Harvard core with DSP extensions and a deterministic interrupt controller. Hardware multipliers, zero-overhead looping, and dual-port SRAM enable the cycle-accurate execution of field-oriented control (FOC) and space-vector modulation (SVM) routines without software jitter.
Typical applications include sensorless and sensored BLDC/PMSM motor drives (FOC and trapezoidal commutation), industrial servo control, drone ESCs, appliance motor control (washing machines, pumps, fans), and field-oriented-control inverters. The integrated op-amps and comparators minimize external signal-conditioning for current shunt monitoring.
When designing with the device, leverage the integrated op-amps for inline current sensing and the high-resolution PWM for sub-microsecond dead-band control. Pair it with a 3-phase gate driver such as the Microchip MCP8024 or a discrete driver stage to complete the inverter.
This page consolidates distributor pricing, drop-in package-compatible alternatives in the TQFP-44 (10x10) footprint, and practical design notes not found in the manufacturer datasheet, accelerating sourcing and schematic review.
Alternativas directas para PIC24EP32MC204-I/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 PIC24EP32MC204-I/PT (mismo factor de forma y huella) — difiere en ADC, Package, Comparators, Core Architecture, Operating Temperature.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC24EP32MC204-E/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24EP32MC204-H/PT
✅ Sustitución directa✓ En stock
$4.71 / unidad
Ver hoja de datos →PIC24EP32GP204-I/PT
✅ Sustitución directa✓ En stock
$2.71 / unidad
Ver hoja de datos →PIC24EP32MC203-I/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24EP128MC204-I/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24EP32MC204-I/PT Valores máximos y características eléctricas
| Core Architecture | 16-bit PIC24E (modified Harvard, DSP extensions) |
| Family | dsPIC33/PIC24E - Motor Control (MC) sub-family |
| Program Memory (Flash) | 32 KB (10.7K x 24 instructions) |
| Data Memory (RAM) | 4 KB |
| CPU Speed | 70 MIPS (70 MHz maximum) |
| Operating Voltage | 3.0 V to 3.6 V |
| ADC | 10-bit / 12-bit, up to 1.2 Msps |
| Op-Amps | 2 internal (for current sensing) |
| Comparators | 3 with programmable reference |
| PWM Channels | Motor Control PWM (MCPWM), 6 outputs |
| Encapsulado | 44-pin TQFP (10x10 mm) |
| Tipo de montaje | Surface Mount |
| Temperatura de funcionamiento | -40 C to +85 C (Industrial "I") |
| Nivel MSL | 3 (168 hours) |
| Estado RoHS | Compliant |
Configuración de pines de PIC24EP32MC204-I/PT
| Pin 1 | RP15/PWM3H/OCFA — Remappable I/O / PWM output / Output Compare Fault A |
| Pin 2 | RP14/PWM2H — Remappable I/O / PWM output |
| Pin 3 | RP13/PWM1H — Remappable I/O / PWM output |
| Pin 4 | RP12/PWM1L — Remappable I/O / PWM output |
| Pin 5 | RP11/PWM2L — Remappable I/O / PWM output |
| Pin 6 | RP10/PWM3L — Remappable I/O / PWM output |
| Pin 7 | MCLR — Master Clear (reset) input, active low |
| Pin 8 | RP9/IC2 — Remappable I/O / Input Capture |
| Pin 9 | VDD — Positive supply voltage (3.0-3.6 V) |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RP8/OC2 — Remappable I/O / Output Compare |
| Pin 12 | RP7/IC1 — Remappable I/O / Input Capture |
| Pin 13 | RP6/OC1 — Remappable I/O / Output Compare |
| Pin 14 | RP5/INT1 — Remappable I/O / External Interrupt 1 |
| Pin 15 | RP4/INT0 — Remappable I/O / External Interrupt 0 |
| Pin 16 | RP3/CN13 — Remappable I/O / Change Notification |
| Pin 17 | RP2/CN14 — Remappable I/O / Change Notification |
| Pin 18 | RP1/CN15 — Remappable I/O / Change Notification |
| Pin 19 | RP0/CN16 — Remappable I/O / Change Notification |
| Pin 20 | AVDD — Analog positive supply voltage |
| Pin 21 | AVSS — Analog ground reference |
| Pin 22 | AN0/CMP1A — Analog input / Comparator 1 input A |
| Pin 23 | AN1/CMP1B — Analog input / Comparator 1 input B |
| Pin 24 | AN2/CMP1C — Analog input / Comparator 1 input C |
| Pin 25 | VDD — Positive supply voltage (3.0-3.6 V) |
| Pin 26 | VSS — Ground reference |
| Pin 27 | AN3/CMP2A — Analog input / Comparator 2 input A |
| Pin 28 | AN4/CMP2B — Analog input / Comparator 2 input B |
| Pin 29 | AN5/CMP2C — Analog input / Comparator 2 input C |
| Pin 30 | AN6/CMP3A — Analog input / Comparator 3 input A |
| Pin 31 | AN7/CMP3B — Analog input / Comparator 3 input B |
| Pin 32 | AN8/CMP3C — Analog input / Comparator 3 input C |
| Pin 33 | OPA1IN+/AN9 — Op-Amp 1 non-inverting input / Analog input |
| Pin 34 | OPA1IN-/OPA1OUT — Op-Amp 1 inverting input / output |
| Pin 35 | OPA2IN+/AN10 — Op-Amp 2 non-inverting input / Analog input |
| Pin 36 | OPA2IN-/OPA2OUT — Op-Amp 2 inverting input / output |
| Pin 37 | OSC1/CLKI — Crystal oscillator input / external clock |
| Pin 38 | OSC2/CLKO — Crystal oscillator output |
| Pin 39 | SOSCI — Secondary oscillator input (32.768 kHz) |
| Pin 40 | SOSCO — Secondary oscillator output |
| Pin 41 | VDD — Positive supply voltage (3.0-3.6 V) |
| Pin 42 | VSS — Ground reference |
| Pin 43 | PGED1/AN11 — Programming data / Analog input |
| Pin 44 | PGEC1/AN12 — Programming clock / Analog input |
Aplicaciones típicas
PIC24EP32MC204-I/PT es adecuado para 6 aplicacións: Sensorless FOC BLDC/PMSM Motor Drive, Sensored Trapezoidal BLDC Commutation, Industrial Servo Drive and CNC Spindle Control, Drone Electronic Speed Controller (ESC), Appliance Motor Control (Pumps, Fans, Washing Machines), Solar Microinverter and Power Optimizer.
Sensorless FOC BLDC/PMSM Motor Drive
The PIC24EP32MC204-I/PT is purpose-built for sensorless field-oriented control (FOC) of BLDC and PMSM motors in 3-phase inverter topologies. The 70 MIPS DSP-extended core executes Clarke/Park transforms and PI controllers in single-cycle MAC instructions, supporting field update rates of 10-20 kHz needed for smooth torque and speed control across the entire RPM range. Two integrated op-amps measure phase current via shunt resistors directly into the ADC, eliminating external conditioning circuitry and reducing BOM count. The Motor Control PWM (MCPWM) peripheral generates complementary 3-phase outputs with programmable dead-time to drive gate drivers such as the MCP8024 or IRS2003. For drones, e-bikes, appliance pumps, or HVAC fans, the 32KB Flash holds Microchip's open-source FOC library plus application-specific commutation tables. Verified designs include Microchip's 3-Phase PMSM Motor Drive Reference Design with sensorless startup.
Recomendado
Sensored Trapezoidal BLDC Commutation
For Hall-sensor-equipped BLDC motors used in cooling fans, computer cooling, white goods, and e-bikes, the PIC24EP32MC204-I/PT delivers robust 6-step trapezoidal commutation at the 70 MIPS core speed. The three on-chip analog comparators with programmable references handle Hall-sensor edge detection and BEMF zero-cross sensing for sensorless backup modes, freeing CPU cycles for protection logic. Hardware PWM fault inputs (FLTA) latch overcurrent events within nanoseconds - critical for IGBT/MOSFET shoot-through prevention in industrial drives. The 32KB Flash is ample for state-machine commutation lookup tables, ramp-up profiles, and UART/I2C telemetry to a host controller. Reference design: Microchip AN1078 "Sensorless BLDC Control with Back-EMF Filtering."
Recomendado
Industrial Servo Drive and CNC Spindle Control
Industrial servo drives and CNC spindle controllers leverage the PIC24EP32MC204-I/PT's deterministic interrupt latency and DSP-extended math to execute cascaded position-velocity-current loops at 8-16 kHz. The 12-bit 1.2 Msps ADC samples feedback current and encoder signals with sub-microsecond jitter, while the 70 MIPS core runs PID controllers with cycle-accurate consistency - essential for smooth servo response without torque ripple. Two on-chip op-amps interface directly to high-side current shunts, eliminating the analog front-end that traditionally adds BOM cost. The 4KB SRAM holds encoder buffers, command trajectories, and FOC intermediate variables without external memory expansion. Industrial operating temperature (-40C to +85C) supports factory floor deployment; upgrade to PIC24EP32MC204-E/PT for outdoor cabinet applications up to +125C.
Recomendado
Drone Electronic Speed Controller (ESC)
Drone ESCs for multirotor platforms demand compact size, low weight, and high dynamic response - exactly what the PIC24EP32MC204-I/PT in a 10x10 mm TQFP-44 package provides. At 70 MIPS, the controller runs fast FOC loops at 24-32 kHz, delivering the rapid throttle response required for stable flight control. The integrated op-amps measure phase current directly, allowing accurate torque-per-amp control that translates to predictable motor response - critical when the flight controller demands precise RPM changes. Motor Control PWM with 7.7 ns resolution produces clean switching waveforms that minimize motor heating and EMI noise on the power harness. The 32KB Flash holds sensorless startup algorithms and per-motor calibration constants. Reference: Microchip AN1083 "Sensorless FOC for Drone Applications."
Recomendado
Appliance Motor Control (Pumps, Fans, Washing Machines)
White-goods appliances such as washing-machine drum drives, dishwasher circulation pumps, and HVAC blower fans benefit from the PIC24EP32MC204-I/PT's integrated motor-control peripherals and industrial temperature range. The dual op-amps interface to low-side current shunts, providing overload detection and stall protection required by IEC 60335 household-appliance safety standards. The Motor Control PWM with hardware fault shutdown (FLTA pin) latches gate-driver disable within 25 ns on overcurrent, protecting the IGBT module from short-circuit damage. The 32KB Flash supports energy-efficient sinusoidal commutation profiles that reduce audible noise and improve appliance energy ratings. With 4KB SRAM, the MCU runs both the motor-control loop and a UART/I2C interface to the appliance's main controller without external memory.
Recomendado
Solar Microinverter and Power Optimizer
Solar microinverters and DC-DC power optimizers for photovoltaic strings use the PIC24EP32MC204-I/PT to implement maximum power point tracking (MPPT) and grid-tie inverter control. The 70 MIPS DSP-extended core runs Perturb-and-Observe or Incremental Conductance MPPT at 10 kHz, tracking the PV panel's maximum power point across changing irradiance conditions. Three on-chip comparators monitor grid voltage zero-cross for line-frequency synchronization, while the ADC samples PV panel voltage and current with 12-bit accuracy. The integrated op-amps interface to current-sense transformers, providing isolated current measurement without external amplifier stages. The 32KB Flash stores MPPT control loops, anti-islanding protection per IEEE 1547, and grid-sync state machines. For residential solar with 250-400 W microinverters, the TQFP-44 footprint integrates cleanly into compact IP65 enclosures.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC24EP32MC204-I/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC24EP32MC204-E/PT | PIC24EP32GP204-I/PT | PIC24EP128MC204-I/PT | PIC24EP32MC203-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same |
| Flash Memory | 32 KB | 32 KB - same | 32 KB - same | 128 KB - 4x more | 32 KB - same |
| RAM | 4 KB | 4 KB - same | 4 KB - same | 8 KB - 2x more | 4 KB - same |
| CPU Speed | 70 MIPS | 70 MIPS - same | 70 MIPS - same | 70 MIPS - same | 70 MIPS - same |
| Integrated Op-Amps | 2 | 2 - same | 0 - removed (general-purpose variant) | 2 - same | 2 - same |
| Comparators | 3 | 3 - same | 3 - same | 3 - same | 3 - same |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| PWM Type | Motor Control PWM (MCPWM) | Motor Control PWM (MCPWM) | Standard PWM (general-purpose variant) | Motor Control PWM (MCPWM) | Motor Control PWM (MCPWM) |
Diferenciadores clave
- Integrated dual op-amps for current sensing (frente a PIC24EP32GP204-I/PT)
- Motor Control PWM (MCPWM) peripheral (frente a PIC24EP32GP204-I/PT)
- 70 MIPS DSP-extended core at 70 MHz (frente a PIC24FJ32MC104-I/PT)
Notas de diseño
The PIC24EP32MC204-I/PT operates from a single 3.0 V to 3.6 V supply and requires both VDD/VSS pairs (pins 9/10, 25/26, 41/42) plus AVDD/AVSS (pins 20/21) to be properly decoupled. Use a 10 uF bulk capacitor plus 100 nF ceramic decoupling placed within 5 mm of each VDD/VSS pair. Power-on-reset (POR) and brown-out-reset (BOR) require VDD to rise monotonically from 0 V to 3.3 V in less than 50 ms; an RC delay or sequenced LDO helps meet this in systems with multiple voltage rails.
Separate analog and digital ground planes with a single-point connection under the MCU. The AVDD pin should be filtered with a ferrite bead or small inductor (10 uH) from VDD plus a 100 nF ceramic bypass. Op-amp feedback traces (OPA1OUT to OPA1IN-) must be kept short (< 5 mm) to avoid oscillation. Route PWM outputs as 50 ohm microstrip traces on the top layer with a continuous ground plane beneath; place the gate driver within 25 mm of the MCU to minimize PWM propagation delay.
Use the PWM Fault input (FLTA) for hardware overcurrent protection - the MCPWM peripheral can shut down PWM outputs within 25 ns of a fault assertion, preventing IGBT shoot-through in 3-phase inverters. The op-amp outputs feed the ADC directly; add an RC low-pass filter (1 kohm, 100 pF) at each op-amp output to filter PWM-induced switching noise that would otherwise corrupt current measurements. Keep ADC trace lengths matched (within 5 mm) for accurate 12-bit conversions.
Do not leave the MCLR pin floating - tie it to VDD through a 10 kohm pull-up resistor and add a 100 nF capacitor to ground for noise immunity. The secondary oscillator (SOSC) pins (39/40) must be left open or terminated with a 32.768 kHz crystal; floating them carelessly can cause unpredictable behavior on low-power wakeup. When migrating from PIC24EP32MC204-I/PT to PIC24EP128MC204-I/PT, verify that code uses only the 44-pin peripheral subset - the 64-pin and 100-pin variants expose additional I/O that does not exist on the 44-pin TQFP.
The TQFP-44 (10x10 mm) package has a thermal resistance of approximately 60 C/W (theta_JA) on a standard JEDEC 4-layer PCB, but this drops to ~35 C/W with 1 sq-inch of continuous copper under the exposed thermal pad (the TQFP-44 has no thermal pad - use a copper flood with thermal vias to the bottom layer). At industrial -40 to +85 C operation the device typically consumes 50-100 mW during active FOC execution, so thermal management is rarely a concern unless the design seals the MCU in an enclosed appliance with no airflow.
Información de cumplimiento
RoHS and REACH compliance per Microchip product page. AEC-Q100 not applicable for this Industrial-grade variant; for automotive applications use PIC24EP32MC204-E/PT or contact factory for AEC-Q100 qualification status. Halogen-free status not explicitly stated in web data.