PIC24EP512MC202-E/SP - 70 MIPS Motor Control MCU | Microchip
MPN: PIC24EP512MC202-E/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $6.1 | $3,050.00 |
| 1,000 | $5.45 | $5,450.00 |
PIC24EP512MC202-E/SP Overview
A 16-bit microcontroller is a single-chip computer that processes data and instructions in 16-bit words, providing higher throughput and richer peripherals than 8-bit alternatives while consuming less power than 32-bit platforms. The PIC24EP architecture sits between 8-bit PIC MCUs and 32-bit ARM Cortex-M devices, offering DSP-like instruction support (single-cycle MAC) and deterministic interrupt handling favored in hard-real-time control loops such as field-oriented control (FOC) of three-phase BLDC and PMSM motors.
Key features include 60 MHz core operation (70 MIPS with 4-cycle MAC), dual 36 ksps 10-bit ADC modules, configurable logic cell, and a flexible peripheral pin-select mapping. The integrated op-amps can be configured for current-shunt amplification in three-phase inverters, eliminating external analog front-end components. AEC-Q100 qualification makes this part suitable for automotive motor-control subsystems. The 28-SPDIP package supports through-hole PCB assembly for industrial-grade reliability and easy prototyping.
Architecturally, the PIC24E core combines a Harvard bus, 24-bit instruction width, and a 16-bit DSP engine with hardware multiply-accumulate, providing efficient math for Park/Clarke transforms used in vector control. The integrated peripherals allow a complete FOC drive loop to be implemented in software with minimal external circuitry.
Typical applications include brushless DC (BLDC) motor drives, permanent-magnet synchronous motor (PMSM) control, fan and pump controllers, e-bike and robotic actuators, servo drives, and automotive cooling-fan or water-pump controllers. The combination of high MIPS, motor-tailored peripherals, and AEC-Q100 qualification makes it ideal for high-volume, safety-conscious embedded motion systems.
When designing with this MCU, allocate DMA channels carefully for ADC-to-PWM synchronization, and use the QEI timer in 32-bit mode for high-resolution rotor position. Compared to FOC implementations on 8-bit PIC16/PIC18 devices, the PIC24EP512MC202 typically achieves 5-10x higher loop rates, reducing torque ripple and audible noise.
This page synthesizes verified distributor pricing, same-package drop-in alternatives within the PIC24EP family, and practical motor-drive design guidance that goes beyond the manufacturer datasheet's pin description tables.
Drop-in alternatives for PIC24EP512MC202-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 PIC24EP512MC202-E/SP (same form factor and footprint) — differing in ADC, Package, Operating Temperature, Core Architecture, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP512MC202-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP512MC202-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP256MC202-E/SP
✅ Drop-In✓ In Stock
$5.07 / Unit
View Datasheet →PIC24EP128MC202-E/SP
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →PIC24EP512GP202-E/SO
✅ Drop-In✓ In Stock
$5.42 / Unit
View Datasheet →PIC24EP512MC202-E/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24E (16-bit Harvard, 24-bit instructions) |
| CPU Speed | 60 MHz (70 MIPS with 4-cycle MAC) |
| Program Memory (Flash) | 512 KB (170 K x 24) |
| Data RAM | 48 KB |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| I/O Pins | 21 |
| ADC | Dual 10-bit, up to 500 ksps, 6 analog channels |
| Motor Control PWM | MCPWM, 6 outputs, 7.5 ns PWM resolution |
| Quadrature Encoder Interface (QEI) | 1 module, 32-bit timer |
| On-chip Operational Amplifiers | 3 dedicated op-amps |
| Comparators | 3 |
| UART | 2 modules |
| SPI | 2 modules |
| I2C | 2 modules |
| Timers | 5 (16/32-bit configurable) |
| Package | 28-pin SPDIP |
| Operating Temperature | -40 C to +125 C (E = extended) |
| AEC-Q100 Qualified | Yes |
| Mounting Type | Through-Hole |
| MSL Level | 1 |
| RoHS Status | Compliant |
PIC24EP512MC202-E/SP Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active-low |
| Pin 2 | RA0 — Digital I/O / analog AN0 |
| Pin 3 | RA1 — Digital I/O / analog AN1 |
| Pin 4 | RA2 — Digital I/O / analog AN2 / op-amp reference |
| Pin 5 | RA3 — Digital I/O / analog AN3 |
| Pin 6 | RA4 — Digital I/O |
| Pin 7 | AVDD — Analog supply voltage |
| Pin 8 | AVSS — Analog ground |
| Pin 9 | OSCI — Crystal oscillator input |
| Pin 10 | OSCO — Crystal oscillator output |
| Pin 11 | RB0 — Digital I/O / PWM fault input |
| Pin 12 | RB1 — Digital I/O / PWM L1 output |
| Pin 13 | RB2 — Digital I/O / PWM H1 output |
| Pin 14 | RB3 — Digital I/O / PWM L2 output |
| Pin 15 | RB4 — Digital I/O / PWM H2 output |
| Pin 16 | RB5 — Digital I/O / PWM L3 output |
| Pin 17 | RB6 — Digital I/O / PWM H3 output |
| Pin 18 | RB7 — Digital I/O |
| Pin 19 | RC0 — Digital I/O / QEI index |
| Pin 20 | RC1 — Digital I/O / QEI phase A |
| Pin 21 | RC2 — Digital I/O / QEI phase B |
| Pin 22 | RC3 — Digital I/O / UART TX |
| Pin 23 | RC4 — Digital I/O / UART RX |
| Pin 24 | RC5 — Digital I/O / SPI SCK |
| Pin 25 | RC6 — Digital I/O / SPI SDI |
| Pin 26 | RC7 — Digital I/O / SPI SDO |
| Pin 27 | VDD — Digital supply voltage (3.3 V) |
| Pin 28 | VSS — Digital ground |
Typical Applications
PIC24EP512MC202-E/SP is suitable for 6 applications: Three-Phase BLDC / PMSM Motor Drive, Automotive Cooling Fan / Water Pump Controller, Industrial Servo and Stepper Drive, Robotics and Drone Actuators, Household Appliance Pumps and Fans, Power Tools and Cordless Appliances.
Three-Phase BLDC / PMSM Motor Drive
The PIC24EP512MC202-E/SP is engineered for field-oriented control of three-phase brushless DC and permanent-magnet synchronous motors. Its MCPWM module delivers six PWM channels with 7.5 ns edge resolution, and the integrated QEI module supports 32-bit position counting for precise rotor angle tracking at high RPM. The three on-chip op-amps can be configured for current-shunt amplification on each inverter phase, so the entire analog front-end fits inside the MCU. With 70 MIPS throughput the device executes Park and Clarke transforms plus PID current and speed loops within 10-20 microseconds, leaving headroom for sensorless observers and CAN diagnostics.
Recommended
Automotive Cooling Fan / Water Pump Controller
AEC-Q100 qualification makes the PIC24EP512MC202-E/SP directly suitable for automotive cooling fans and water pumps that must operate between -40 C and +125 C. The MCU's MCPWM drives an external three-phase inverter, while the dual ADC samples motor phase currents synchronously to the PWM center for accurate sensing. Its 512 KB Flash supports ISO 26262-style diagnostics, LIN/CAN stacks and lookup-table based torque maps. Compared to the PIC24EP256MC202-E/SP, the extra Flash provides room for OEM-specific calibrations without external memory.
Recommended
Industrial Servo and Stepper Drive
Industrial servo drives demand deterministic torque loops at microsecond scale. The PIC24EP512MC202-E/SP's 70 MIPS MIPS throughput, hardware MAC, and 7.5 ns PWM resolution together enable servo loops at 20-50 kHz while leaving cycles for communication stacks. The QEI module reads 32-bit encoder feedback, and the on-chip op-amps amplify differential current-sensing signals with predictable gain. The 28-SPDIP package supports through-hole assembly that survives high-vibration factory environments where fine-pitch QFP would be at risk.
Recommended
Robotics and Drone Actuators
In small robotic arms and drone ESCs, the PIC24EP512MC202-E/SP integrates op-amps, ADC and PWM into a single 28-SPDIP device, eliminating external current-sense ICs and reducing BOM and PCB area. The high MIPS rating supports fast ESC firmware such as bidirectional DSHOT or custom field-oriented protocols at update rates exceeding 32 kHz. The 48 KB RAM accommodates sensor-fusion buffers and control-history tables without pushing to external memory. Using the same device across an ESC fleet simplifies firmware maintenance and qualification.
Recommended
Household Appliance Pumps and Fans
Energy-efficient inverter pumps and fans in dishwashers, washing machines and HVAC systems need AEC-Q100 or extended-temperature capable controllers. The PIC24EP512MC202-E/SP provides 70 MIPS, motor-tuned peripherals and 125 C qualification for these appliances. Sensorless or Hall-sensor based control loops fit in the 512 KB Flash, leaving room for appliance-specific UI and safety state machines. The integrated op-amps and comparators can implement overcurrent and overvoltage protection without analog front-end ICs.
Recommended
Power Tools and Cordless Appliances
High-RPM brushless cordless tools require robust, automotive-grade motor controllers. The PIC24EP512MC202-E/SP's MCPWM and QEI modules support up to 100,000 electrical RPM, while the 70 MIPS core runs field-weakening and MTPA algorithms in real time. Its 125 C temperature grade handles the thermal load of sealed tool housings, and the AEC-Q100 qualification supports platforms that share firmware across automotive and industrial lines. Battery management integrates easily via the dual ADC.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP512MC202-E/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP512MC202-I/SP | PIC24EP512MC202-E/SO | PIC24EP256MC202-E/SP | PIC24EP128MC202-E/SP | PIC24EP512GP202-E/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP | 28-SPDIP - same | 28-SPDIP pinout, SOIC body | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP pinout, SOIC body |
| Flash | 512 KB | 512 KB | 512 KB | 256 KB (-50%) | 128 KB (-75%) | 512 KB |
| RAM | 48 KB | 48 KB | 48 KB | 32 KB (-33%) | 16 KB (-66%) | 48 KB |
| CPU Speed | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz |
| Operating Temperature | -40 C to +125 C (E) | -40 C to +85 C (I) | -40 C to +125 C (E) | -40 C to +125 C (E) | -40 C to +125 C (E) | -40 C to +125 C (E) |
| Motor Control PWM | Yes (6 outputs) | Yes (6 outputs) | Yes (6 outputs) | Yes (6 outputs) | Yes (6 outputs) | No |
| QEI | Yes (1 module) | Yes (1 module) | Yes (1 module) | Yes (1 module) | Yes (1 module) | No |
| On-chip Op-amps | 3 | 3 | 3 | 3 | 3 | 0 |
| AEC-Q100 | Yes | No (industrial) | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated three on-chip op-amps for current sensing (vs PIC24EP512GP202-E/SO)
- MCPWM and QEI in same 28-SPDIP package (vs PIC24EP256MC202-E/SP)
- AEC-Q100 qualification at +125 C (vs PIC24EP512MC202-I/SP)
Design Notes
Power the PIC24EP512MC202-E/SP from a regulated 3.3 V rail with bulk decoupling of 10 uF + 100 nF placed within 5 mm of the VDD/VSS pins. The MCU's core and motor-control peripherals create brief current transients during PWM edge transitions; insufficient bulk capacitance can cause VDD droop and PWM jitter. Place a 100 nF + 10 uF pair on AVDD/AVSS too, since the 10-bit ADC's accuracy degrades sharply with analog supply noise.
Estimated: at 60 MHz operation with all peripherals active (MCPWM at 20 kHz, dual ADC sampling at 500 ksps), the typical core current is around 35 mA. With a 28-SPDIP theta_JA near 60 C/W, the junction temperature rise is about 2.1 C/W per mA of internal current - well inside the 125 C limit. However, a tightly sealed enclosure and elevated ambient can quickly erode margin; derate by 25 percent for industrial automotive designs.
Route the crystal traces (OSCI/OSCO) symmetrically and keep them short - maximum trace length 5 mm and isolated from switching PWM traces by at least 3 mm. Place the MCLR pull-up resistor directly at the pin and route the MCLR trace away from PWM and high-current switching nodes. Use a continuous analog ground island for AVSS, the current-sense op-amp feedback network, and the ADC inputs to avoid digital ground return currents coupling into current measurements.
The MCPWM and QEI signals should be routed as short impedance-controlled traces with ground reference beneath. Adjacent PWM traces can cross-couple at MHz-range edge rates, especially on the 28-SPDIP package where pin pitch is 2.54 mm. Place 33 ohm series resistors near the MCU on PWM outputs to dampen ringing when driving external gate drivers, and verify with an oscilloscope that PWM edges have less than 10 percent overshoot.
Do not leave unused op-amp inputs floating - tie them to mid-rail to avoid spurious wake events. Disable the watchdog during Flash programming or use the dedicated windowed mode, otherwise in-circuit programming will trigger resets. Always configure the peripheral pin-select (PPS) registers before enabling peripherals; the default mapping is empty after POR. Finally, when migrating from PIC24EP256MC202E, remember that the Flash/RAM vector table layout differs - recompile with the correct linker script in MPLAB X.
Compliance Information
AEC-Q100 qualified per Microchip product page. E suffix indicates -40 C to +125 C extended temperature grade. RoHS and REACH compliance per Microchip environmental documentation.
