PIC24EP512MC202-H/SP - 70 MIPS 16-bit Motor Control MCU, 512KB Flash | Microchip
MPN: PIC24EP512MC202-H/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.34 | $12.34 |
| 10 | $11.05 | $110.50 |
| 100 | $9.45 | $945.00 |
| 500 | $8.1 | $4,050.00 |
| 1,000 | $7.25 | $7,250.00 |
PIC24EP512MC202-H/SP Overview
A 16-bit microcontroller is a class of embedded processor that exposes a 16-bit data path and instruction word, sitting between 8-bit MCUs (PIC16/PIC18) and 32-bit MCUs (PIC32). Within that hierarchy, the PIC24E belongs to the dsPIC33/PIC24E digital signal controller family that combines traditional MCU peripherals with DSP capabilities such as MAC instructions and zero-overhead looping. Motor-control variants in this family - including the PIC24EPxxxMCxxx series - add up to 14 high-speed PWM channels, dual 12-bit ADCs with simultaneous sampling, op-amp outputs routed to ADC inputs, and a QEI module for closed-loop rotor position feedback.
Key features of the PIC24EP512MC202 include 512 KB Flash, 48 KB RAM, seven 16-bit timers, two UART, two SPI, two I2C, a 12-bit ADC with up to 10 channels and 500 ksps conversion rate, six PWM outputs with duty-cycle resolution and fault inputs, and dual on-chip op-amps that can be used for current sensing in FOC motor drives. The -H temperature grade extends the operating range to 150 °C, and the /SP package is the 28-pin SPDIP (Skinny Plastic DIP, 0.300 inch row spacing). The -H/SP part is particularly suited to industrial environments where solder-joint reliability on through-hole boards is preferred over SMD.
Architecturally, the PIC24EP512MC202 uses a modified Harvard bus with a 24-bit instruction word, an 8-deep software stack, and a 16 x 16 hardware MAC for DSP workloads. The PWM module supports center-aligned and edge-aligned modes with dead-time control and complementary outputs - essential for three-phase inverter drive. The op-amps can be internally routed to ADC channels, eliminating the need for external signal conditioning in current-sense chains and reducing BOM cost.
Typical applications include BLDC and PMSM motor control (drones, e-bikes, HVAC fans), field-oriented control (FOC) inverter drives, industrial servo control, sensorless motor commutation using BEMF, switched reluctance motor drives, and automotive pump/fan controllers. With the -H temperature grade and AEC-Q100 qualification, this part also serves automotive underhood and body-electronics applications.
Design considerations: provide low-ESR decoupling (100 nF + 10 µF bulk) on every VDD/AVDD pin pair, route the crystal traces short and guarded, and use the internal op-amps with care because their bandwidth and offset drift may not be sufficient for high-accuracy current sensing above 50 kHz - consider an external current-sense amplifier for high-performance FOC. Confirm that the ICSP/PGD/PGC programming pins remain accessible for in-circuit firmware updates.
This page combines drop-in pin-compatible alternatives, parametric comparisons, and practical design notes drawn from Microchip's PIC24E motor-control datasheet and reference designs, providing information gain not available in the bare datasheet.
Drop-in alternatives for PIC24EP512MC202-H/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-H/SP (same form factor and footprint) — differing in ADC, Package, Mounting Type, Comparators, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP512MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24EP512MC202-E/SP
✅ Drop-In✓ In Stock
$5.45 / Unit
View Datasheet →PIC24EP256MC202-H/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24EP256MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.65 / Unit
View Datasheet →PIC24EP256MC202-E/SP
✅ Drop-In✓ In Stock
$5.07 / Unit
View Datasheet →PIC24EP512GP202-H/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
dsPIC33EP512MC202-H/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24EP512MC202-H/SP Maximum Ratings & Electrical Characteristics
| Core | PIC24E 16-bit DSC |
| Architecture | Modified Harvard, 24-bit instruction word, 16-bit data path |
| Program Memory (Flash) | 512 KB (170K x 24 words) |
| Data RAM | 48 KB |
| Instruction Throughput | 70 MIPS (max CPU speed 70 MHz, 2-cycle ALU) |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40 °C to +150 °C (-H grade) |
| Package | 28-pin SPDIP (Skinny Plastic DIP, 0.300 in) |
| Package Code | SP |
| Temperature Grade | High (-H, AEC-Q100 qualified) |
| ADC | 12-bit, 500 ksps, up to 10 input channels |
| PWM Outputs | 6 high-speed PWM with complementary mode, dead-time, and fault inputs |
| On-Chip Op-Amps | 2 op-amps routable to ADC inputs (current-sense topology) |
| Quadrature Encoder Interface (QEI) | Yes, for rotor position feedback |
| Timers | 7 x 16-bit timer/counters |
| Communication | 2x UART, 2x SPI, 2x I2C |
| DMA | Yes, 8-channel |
| Mounting Type | Through-Hole |
| RoHS Status | Compliant |
PIC24EP512MC202-H/SP Pin Configuration
| Pin 1 | SDA/RP11/RB11 — I2C SDA / remappable I/O |
| Pin 2 | RP8/RB8 — Remappable I/O |
| Pin 3 | RP9/RB9 — Remappable I/O |
| Pin 4 | VSS — Ground |
| Pin 5 | OSCI/RC15 — Crystal oscillator input / I/O |
| Pin 6 | OSCO/RC14 — Crystal oscillator output / I/O |
| Pin 7 | VSS — Ground |
| Pin 8 | PGECx — ICSP clock / I/O |
| Pin 9 | PGEDx — ICSP data / I/O |
| Pin 10 | AN0/RA0 — Analog input 0 / I/O |
| Pin 11 | AN1/RA1 — Analog input 1 / I/O |
| Pin 12 | AVDD — Analog supply (3.0-3.6 V) |
| Pin 13 | AVSS — Analog ground |
| Pin 14 | PWM1H/RE0 — PWM output / I/O |
| Pin 15 | PWM1L/RE1 — PWM output / I/O |
| Pin 16 | PWM2H/RE2 — PWM output / I/O |
| Pin 17 | PWM2L/RE3 — PWM output / I/O |
| Pin 18 | VDD — Digital supply (3.0-3.6 V) |
| Pin 19 | PWM3H/RE4 — PWM output / I/O |
| Pin 20 | PWM3L/RE5 — PWM output / I/O |
| Pin 21 | RP1/INT0/RB1 — Remappable I/O / external interrupt |
| Pin 22 | RP2/RB2 — Remappable I/O |
| Pin 23 | SCL/RP10/RB10 — I2C SCL / remappable I/O |
| Pin 24 | RP3/RB3 — Remappable I/O |
| Pin 25 | RP4/RB4 — Remappable I/O |
| Pin 26 | RP5/RB5 — Remappable I/O |
| Pin 27 | RP6/RB6 — Remappable I/O |
| Pin 28 | RP7/RB7 — Remappable I/O |
Typical Applications
PIC24EP512MC202-H/SP is suitable for 6 applications: BLDC / PMSM Motor Control, Field-Oriented Control (FOC) Inverter, Industrial Servo Drives, Automotive Water/Oil Pumps and HVAC Fans, Sensorless Motor Control (BEMF / Zero-Crossing), Switched Reluctance Motor (SRM) Drives.
BLDC / PMSM Motor Control
The PIC24EP512MC202-H/SP's 70 MIPS PIC24E core, dual 12-bit ADC with simultaneous sampling, and 6 high-speed PWM channels with complementary outputs and dead-time make it well-suited to sensorless and sensored FOC on BLDC and PMSM motors. The on-chip op-amps can be routed directly to ADC inputs for low-side shunt current sensing, eliminating external amplifiers in FOC inverter stages up to ~5 kW. The -H grade (AEC-Q100, -40 to +150 °C) qualifies the device for harsh underhood and industrial environments. For drone, e-bike, and appliance motor drives, the 512 KB Flash accommodates full motor-control libraries plus application firmware. Compared to PIC24EP256MC202, the larger Flash and RAM support richer state machines and on-the-fly parameter adaptation in sensorless startup routines.
Recommended
Field-Oriented Control (FOC) Inverter
In FOC inverter drives, the PIC24EP512MC202-H/SP runs the Park/Clarke transforms and SVPWM modulation at sampling rates up to 20 kHz thanks to its 70 MIPS throughput and hardware MAC. Dual on-chip op-amps support two- and three-shunt current-sensing topologies for sensing phase current on the inverter low side. The high-speed PWM module provides center-aligned SVPWM with programmable dead-time to prevent shoot-through in the half-bridge drivers. The 48 KB RAM is sufficient for holding FOC state variables, sensor-estimator tables, and an observer buffer for sensorless rotor-position estimation. The -H temperature grade extends operation to +150 °C, useful in motor-inverter modules that share thermal mass with power devices.
Recommended
Industrial Servo Drives
For industrial servo amplifiers, the PIC24EP512MC202-H/SP provides a Quadrature Encoder Interface (QEI) for incremental encoder feedback, dual ADC for current sensing, and a high-speed PWM with 5+ ns resolution for sinusoidal commutation. Its 512 KB Flash accommodates complex cascaded control loops (position, velocity, current) plus canned profiles for cyclic synchronous positioning modes (CSP, CSV) common in EtherCAT-based servo systems. The -H temperature grade supports the elevated ambient temperatures inside sealed servo cabinets. A DMA engine offloads peripheral data transfers to keep CPU bandwidth available for the real-time control loop.
Recommended
Automotive Water/Oil Pumps and HVAC Fans
The AEC-Q100 qualification and -H temperature grade of the PIC24EP512MC202-H/SP make it a strong fit for automotive water pumps, oil pumps, and HVAC blower fans, which operate in underhood thermal environments above +105 °C and require extended reliability over vehicle lifetime. Sensorless FOC on these pumps reduces audible noise and improves energy efficiency compared to trapezoidal commutation. The 512 KB Flash stores calibration tables and CAN/LIN stacks for body-electronics integration. Dual on-chip op-amps and the PWM module provide a complete drive chain with a small external BOM, critical for compact automotive pump modules where PCB area is constrained.
Recommended
Sensorless Motor Control (BEMF / Zero-Crossing)
For cost-sensitive sensorless BLDC applications such as cooling fans and appliance motors, the PIC24EP512MC202-H/SP provides comparator-based BEMF zero-crossing detection, dual 12-bit ADC for back-EMF and current sampling, and 70 MIPS throughput to run the commutation state machine with sub-microsecond resolution. The on-chip op-amps amplify the BEMF signal directly without external conditioning in many cases. The -H grade supports harsh environments including high-ambient industrial machinery and outdoor appliances. Compared with discrete BLDC controllers, the PIC24EP512MC202 allows in-application firmware updates for tuning sensorless startup algorithms.
Recommended
Switched Reluctance Motor (SRM) Drives
Switched Reluctance Motor drives require precise control of asymmetric half-bridge PWM with current profiling, where the PIC24EP512MC202-H/SP excels: its 6 high-speed PWM outputs handle 3-phase asymmetric half-bridge gating with independent current-control loops, and its dual 12-bit ADC performs simultaneous DC-link current and phase-current measurements. The 512 KB Flash accommodates SRM commutation angle tables and current-shaping waveforms that vary with rotor position. The -H grade supports high ambient temperatures in heavy-duty industrial and traction SRM applications. Dual op-amps enable compact on-board current-sensing without external signal chain.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP512MC202-H/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP512MC202-I/SP | PIC24EP512MC202-E/SP | PIC24EP256MC202-H/SP | PIC24EP256MC202-I/SP | PIC24EP256MC202-E/SP | PIC24EP512GP202-H/SP | dsPIC33EP512MC202-H/SP |
|---|---|---|---|---|---|---|---|---|
| Package | 28-SPDIP (SP, through-hole) | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 512 KB | 512 KB | 512 KB | 256 KB | 256 KB | 256 KB | 512 KB | 512 KB |
| RAM | 48 KB | 48 KB | 48 KB | 32 KB | 32 KB | 32 KB | 48 KB | 48 KB |
| Operating Temperature | -40 to +150 °C (-H, AEC-Q100) | -40 to +85 °C (industrial) | -40 to +125 °C (enhanced) | -40 to +150 °C (-H) | -40 to +85 °C (industrial) | -40 to +125 °C (enhanced) | -40 to +150 °C (-H) | -40 to +150 °C (-H) |
| On-Chip Op-Amps | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 2 |
| QEI Module | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
| DSP Extensions | No (PIC24E base) | No | No | No | No | No | No | Yes (dsPIC33 MAC) |
| MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
Key Differentiators
- AEC-Q100 qualified -H temperature grade (-40 to +150 °C) (vs PIC24EP512MC202-I/SP)
- Dual on-chip op-amps routable to ADC inputs (vs PIC24EP512GP202-H/SP)
- Quadrature Encoder Interface (QEI) for rotor position feedback (vs PIC24EP512GP202-H/SP)
- High-speed PWM with dead-time and fault inputs (vs PIC24EP256MC202-H/SP)
Design Notes
Place a 100 nF X7R 0.1 µF ceramic decoupling capacitor as close as possible to every VDD/AVDD pin pair, and add a single 10 µF bulk ceramic (or tantalum) capacitor on the main 3.3 V rail. The internal core logic draws transient current up to 30 mA during PWM edge transitions; insufficient decoupling causes brown-out resets and Flash read errors. The AVDD supply should be filtered with a ferrite bead from VDD for low-noise ADC operation.
Estimated: at 70 MIPS CPU + active PWM + ADC sampling, the PIC24EP512MC202-H/SP draws approximately 40 mA from 3.3 V, dissipating ~0.13 W. The 28-SPDIP package has a theta_JA of ~70 °C/W in still air, leading to a ~9 °C rise above ambient at room temperature. Even at +125 °C ambient, junction temperature remains well under the -H grade 150 °C limit. No heatsink is required, but forced airflow is recommended in sealed motor-inverter enclosures where ambient can exceed +100 °C.
Route the crystal traces (OSCI/OSCO) on the top layer with guard traces grounded on both sides; keep traces under 5 mm to avoid stray capacitance that detunes the oscillator. Place the crystal within 8 mm of the MCU. Keep high-current PWM traces (PWMxH/PWMxL) away from analog input traces (ANx/AVDD) by at least 5 mm or use a guard ground pour to minimize coupling. The ICSP/PGECx/PGEDx pins must remain accessible; use a 2x3 0.1 in header or tag-connect pads for in-circuit programming and debugging.
Do not exceed 3.6 V on VDD/AVDD - the PIC24E core is not 5 V tolerant on any I/O pin. The on-chip op-amps have a typical gain-bandwidth product of 10 MHz and may not be suitable for current sensing above 50 kHz; for high-bandwidth FOC use external current-sense amplifiers. The configuration bits must be set for the correct oscillator mode and pin-function remapping before code execution begins; a missing config-word setup causes the device to lock up or default to a non-working state.
Compliance Information
AEC-Q100 qualified per the -H temperature grade. RoHS and REACH compliant per Microchip product declaration. Lead-free terminal finish. Halogen-free status not specified in public documentation.
