PIC24EP32MC202-E/SP - 70MIPS 16-bit Motor Control MCU, 32KB Flash | Microchip
MPN: PIC24EP32MC202-E/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.16 | $61.60 |
| 100 | $5.45 | $545.00 |
| 500 | $4.92 | $2,460.00 |
| 1,000 | $4.38 | $4,380.00 |
PIC24EP32MC202-E/SP Overview
The PIC24EP32MC202 belongs to the broader 16-bit microcontroller family, a class of MCUs that bridges the gap between 8-bit devices and 32-bit ARM Cortex-M parts. Within the embedded hierarchy, PIC24E sits between PIC16/PIC18 8-bit families and dsPIC33/PIC32 32-bit devices, offering higher performance (70 MIPS) than 8-bit MCUs while retaining a simpler toolchain and lower cost than 32-bit alternatives. The 'E' suffix denotes the Enhanced PIC24 family with DSP-like instructions, while the 'MC' indicates Motor Control variants with dedicated PWM, op-amp, and quadrature encoder interface peripherals.
Key features of the PIC24EP32MC202 include a high-speed PWM module (MCPWM) with up to 7 PWM outputs, integrated operational amplifiers for current sensing, three on-chip analog comparators, a Peripheral Trigger Generator (PTG), and 12-bit ADC with dual sample-and-hold. The motor control PWM supports complementary, center-aligned, and edge-aligned modes with hardware dead-time generation, enabling direct drive of three-phase inverter bridges without external logic. The 60 MIPS core (70 MHz with PLL) provides the computational headroom needed for field-oriented control (FOC) and sensorless algorithms.
Architecturally, the PIC24E core uses a 16-bit modified Harvard architecture with a 24-bit instruction word, allowing efficient C code compilation through Microchip's MPLAB XC16 compiler. The modified Harvard bus separates instruction and data paths to maximize throughput, while integrated DSP instructions accelerate the multiply-accumulate operations used in Park/Clark transforms for FOC. The integrated op-amps and comparators allow direct current-sense feedback from low-side shunt resistors, eliminating external analog conditioning in typical BLDC and PMSM drive designs.
Typical applications include BLDC and PMSM motor control for appliances, drones, e-bikes, HVAC fans, automotive pumps and fans, and industrial servo drives. The integrated op-amps and MCPWM reduce BOM count for sensorless and sensored FOC implementations. The 28-pin SPDIP package supports through-hole assembly for legacy industrial designs and easy prototyping on breadboards.
When designing with this device, ensure the ADC and op-amp reference voltages are properly decoupled to minimize noise coupling into current-sense signals. The MCPWM module requires careful configuration of dead-time registers to prevent shoot-through in half-bridge stages. The AEC-Q100 qualification supports automotive deployment, but designers should still apply ISO 26262 functional safety analysis for ASIL-rated systems.
This page synthesizes distributor pricing, drop-in alternative analysis, application guidance, and design notes not consolidated on the manufacturer product page, providing a single reference for engineers and procurement teams.
Drop-in alternatives for PIC24EP32MC202-E/SP — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC24EP32MC202-E/SP (same form factor and footprint) — differing in ADC, Package, RoHS Status, Mounting Type, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP32MC202-I/SP
✅ Drop-In✓ In Stock
$2.34 / Unit
View Datasheet →PIC24EP32MC202-E/MM
✅ Drop-In✓ In Stock
$2.78 / Unit
View Datasheet →PIC24EP32GP202-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP128MC202-E/SP
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →PIC24EP128MC202-H/SP
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →PIC24EP32MC204-E/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP32MC202-E/SP Maximum Ratings & Electrical Characteristics
| Core | PIC24E 16-bit modified Harvard |
| Core Size | 16-bit |
| Program Memory | 32 KB (10.7K x 24) Flash |
| RAM | 4 KB |
| Operating Frequency | 70 MHz (60 MIPS) |
| Supply Voltage | 3.0 V to 3.6 V |
| Package | 28-pin SPDIP (0.300", 7.62 mm) |
| Mounting Type | Through-Hole |
| Operating Temperature | -40C to +125C (extended automotive) |
| ADC | 10/12-bit, multi-channel |
| PWM Module | MCPWM, up to 7 outputs with dead-time |
| Integrated Op-Amps | Yes (internal, configurable) |
| Comparators | 3 on-chip analog comparators |
| Peripheral Trigger Generator (PTG) | Yes |
| Connectivity | I2C, IrDA, LINbus, SPI, UART |
| AEC-Q100 Qualification | Qualified (automotive grade) |
| RoHS Status | Compliant |
PIC24EP32MC202-E/SP Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | OSC1/CLKI — Oscillator crystal input or external clock |
| Pin 3 | OSC2/CLKO — Oscillator crystal output or clock output |
| Pin 4 | RA0 — I/O port A bit 0 / analog input |
| Pin 5 | RA1 — I/O port A bit 1 / analog input |
| Pin 6 | RA2 — I/O port A bit 2 / analog input |
| Pin 7 | VDDCORE — Digital core voltage (1.8V internal LDO output) |
| Pin 8 | RA3 — I/O port A bit 3 / analog input |
| Pin 9 | RA4 — I/O port A bit 4 / analog input |
| Pin 10 | AVSS — Analog ground |
| Pin 11 | AVDD — Analog supply voltage (3.0V to 3.6V) |
| Pin 12 | RB0 — I/O port B bit 0 / PWM |
| Pin 13 | RB1 — I/O port B bit 1 / PWM |
| Pin 14 | RB2 — I/O port B bit 2 / PWM |
| Pin 15 | RB3 — I/O port B bit 3 / PWM |
| Pin 16 | RB4 — I/O port B bit 4 / PWM |
| Pin 17 | RB5 — I/O port B bit 5 / PWM |
| Pin 18 | RB6 — I/O port B bit 6 / PWM |
| Pin 19 | RB7 — I/O port B bit 7 / PWM |
| Pin 20 | VSS — Digital ground |
| Pin 21 | PWM1H — PWM output 1 high-side |
| Pin 22 | PWM1L — PWM output 1 low-side |
| Pin 23 | PWM2H — PWM output 2 high-side |
| Pin 24 | PWM2L — PWM output 2 low-side |
| Pin 25 | RC0 — I/O port C bit 0 |
| Pin 26 | RC1 — I/O port C bit 1 |
| Pin 27 | RC2 — I/O port C bit 2 |
| Pin 28 | VDD — Digital supply voltage (3.0V to 3.6V) |
Typical Applications
PIC24EP32MC202-E/SP is suitable for 6 applications: BLDC / PMSM Motor Control (FOC), Drone ESC (Electronic Speed Controller), Automotive Pump and Fan Control, HVAC Fan and Blower Motor Drives, Industrial Servo Drives, Power Tools (Cordless Drill, Saw, Garden Tools).
BLDC / PMSM Motor Control (FOC)
The PIC24EP32MC202-E/SP executes sensorless and sensored field-oriented control (FOC) for BLDC and PMSM motors at 8-32 kHz loop rates. Its 70 MIPS core delivers sufficient throughput for Park/Clark transforms and PI current loops, while the MCPWM module generates 3-phase center-aligned complementary PWMs with programmable dead-time (typically 1-2 us) for direct half-bridge gate drive. The integrated op-amps sense phase currents from low-side shunts without external analog conditioning, reducing BOM cost. Typical 24V/10A BLDC drives for fans, pumps, and e-bikes achieve >95% efficiency with this device, validated by Microchip's AN1078 sensorless FOC application note.
Recommended
Drone ESC (Electronic Speed Controller)
The PIC24EP32MC202-E/SP is well-suited for multi-rotor drone ESCs driving 4 BLDC motors. Its 32 KB Flash stores sensorless and sensored commutation algorithms including back-EMF zero-crossing detection and optional FOC, while the 4 KB RAM holds real-time state variables and ADC sample buffers. The MCPWM can run at 24-48 kHz switching frequency for 24V/30A quadcopter ESCs, and the integrated op-amps sense phase currents for torque control. AEC-Q100 qualification supports harsh -40C to +125C operating environments experienced in aerial applications.
Recommended
Automotive Pump and Fan Control
The PIC24EP32MC202-E/SP powers automotive water pumps, oil pumps, and cooling fans requiring AEC-Q100 qualification. Its LINbus interface connects directly to vehicle body controllers for command reception, while the MCPWM drives the BLDC motor at variable speed based on PWM duty or LIN RPM setpoint. AEC-Q100 Grade 1 qualification (-40C to +125C) and integrated diagnostics (op-amp overcurrent, comparator undervoltage) meet automotive OEM reliability requirements. Typical applications include 12V/24V coolant pumps with 50-500 W output.
Recommended
HVAC Fan and Blower Motor Drives
The PIC24EP32MC202-E/SP controls variable-speed BLDC motors in HVAC fans, blowers, and air-handlers. The device's 32 KB Flash stores sinusoidal commutation tables and torque-ripple compensation algorithms, while the 12-bit ADC with dual sample-and-hold captures back-EMF for sensorless commutation. The 28-pin SPDIP package supports through-hole assembly for white-goods manufacturing. Typical 120V/230V AC-input inverter designs use this MCU at the secondary side after PFC, with the MCPWM driving the 3-phase IGBT bridge at 16-20 kHz.
Recommended
Industrial Servo Drives
The PIC24EP32MC202-E/SP drives small-to-medium industrial servos and stepper replacements. Its quadrature encoder interface (QEI) accepts A/B/Index signals from incremental encoders at 5 MHz edge rates, while the MCPWM provides 16-bit PWM resolution for precise torque and position control. The integrated op-amps interface directly to current-sense amplifiers feeding the FOC current loop. For 48V/5A servo applications, the device replaces discrete DSP+FPGA solutions at lower cost while maintaining deterministic interrupt latency.
Recommended
Power Tools (Cordless Drill, Saw, Garden Tools)
The PIC24EP32MC202-E/SP drives brushless motors in 18V/36V cordless power tools. The MCPWM provides variable-frequency drive (VFD) commutation at 20-30 kHz for quiet operation, while battery-voltage sensing through the 12-bit ADC enables undervoltage cutoff and current limiting via integrated op-amps. The LIN/UART interface supports battery-pack communication for smart tool systems. The AEC-Q100 qualification and extended -40C to +125C range accommodate harsh tool environments including temperature swings and vibration.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP32MC202-E/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP32MC202-I/SP | PIC24EP32MC202-E/MM | PIC24EP32GP202-I/SP | PIC24EP128MC202-E/SP | PIC24EP128MC202-H/SP | PIC24EP32MC204-E/SP |
|---|---|---|---|---|---|---|---|
| Package | 28-pin SPDIP | 28-pin SPDIP (same) | 28-pin QFN | 28-pin SPDIP (same) | 28-pin SPDIP (same) | 28-pin SPDIP (same) | 44-pin TQFP (NOT same) |
| Brand | Microchip Technology | Microchip Technology (same) | Microchip Technology (same) | Microchip Technology (same) | Microchip Technology (same) | Microchip Technology (same) | Microchip Technology (same) |
| Flash Memory | 32 KB | 32 KB (same) | 32 KB (same) | 32 KB (same) | 128 KB (+300%) | 128 KB (+300%) | 32 KB (same) |
| RAM | 4 KB | 4 KB (same) | 4 KB (same) | 4 KB (same) | 8 KB (+100%) | 8 KB (+100%) | 4 KB (same) |
| Operating Frequency | 70 MHz (60 MIPS) | 70 MHz (same) | 70 MHz (same) | 70 MHz (same) | 70 MHz (same) | 70 MHz (same) | 70 MHz (same) |
| Operating Temperature | -40C to +125C (extended) | -40C to +85C (industrial) | -40C to +125C (same) | -40C to +85C (industrial) | -40C to +125C (same) | -40C to +150C (high-temp) | -40C to +125C (same) |
| AEC-Q100 Qualified | Yes (automotive) | No (industrial) | Yes (same) | No (industrial) | Yes (same) | Yes (same) | Yes (same) |
| MCPWM / Motor Control Peripherals | Yes (MCPWM, op-amps, comparators, QEI) | Yes (same) | Yes (same) | No (general purpose only) | Yes (same) | Yes (same) | Yes (more PWM channels) |
Key Differentiators
- AEC-Q100 automotive qualification in 28-pin SPDIP (vs PIC24EP32MC202-I/SP)
- Integrated MCPWM with op-amps and comparators (vs PIC24EP32GP202-I/SP)
- 32 KB Flash at automotive-grade price tier (vs PIC24EP128MC202-E/SP)
Design Notes
Place decoupling capacitors (100 nF ceramic + 10 uF tantalum or ceramic) within 5 mm of all VDD and AVDD pins. Separate analog and digital ground planes with a single connection point under the MCU to minimize ground-loop noise coupling into the 12-bit ADC. Route the MCPWM outputs in pairs (PWMxH/PWMxL) with matched trace lengths within 5 mm to prevent timing skew between high-side and low-side gate signals.
Estimated: At 70 MHz with all peripherals active, core current consumption is approximately 35-40 mA typical (per Microchip datasheet DC characteristics). Total power dissipation at 3.3V is approximately 130 mW. The 28-pin SPDIP package has theta_JA of approximately 60-70 C/W in still air, giving a junction temperature rise of 8-9 C above ambient - well within the -40C to +125C operating range without explicit heatsinking. For high-ambient-temperature automotive under-hood applications, ensure the SPDIP is mounted vertically for natural convection cooling.
Do not skip configuration of the MCPWM dead-time registers (DTR) when driving half-bridges - shoot-through can destroy FETs within milliseconds. The integrated op-amps require the OPAxCON register to be configured before use; leaving defaults can cause high current draw. The Peripheral Trigger Generator (PTG) must be configured to avoid unintended triggering of ADC from PWM events. Always include a 1 ms MCLR reset pulse supervisor for automotive applications.
Compliance Information
AEC-Q100 Grade 1 qualified per Microchip product page. RoHS and REACH compliant. Lead-free and halogen-free packaging.
