PIC24EP512MC206-H/MR - 16-Bit 60MIPS 512KB Flash Motor Control MCU | Microchip
MPN: PIC24EP512MC206-H/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.5 | $14.50 |
| 10 | $13.05 | $130.50 |
| 100 | $11.6 | $1,160.00 |
| 500 | $10.45 | $5,225.00 |
| 1,000 | $9.3 | $9,300.00 |
PIC24EP512MC206-H/MR Overview
What is a motor-control MCU? A motor-control microcontroller (MCU) is a specialized 16-bit or 32-bit processor integrating timers, PWMs, ADCs, and quadrature encoder interfaces (QEI) to drive brushless DC, permanent-magnet synchronous, AC induction, and switched-reluctance motors in closed-loop control. In the embedded hierarchy, the PIC24EP512MC206 sits within: microcontroller -> 16-bit MCU -> dsPIC/PIC24 family -> motor-control peripheral set -> Microchip PIC24E series. This integrated approach replaces discrete DSPs and external PWM controllers, shrinking BOM and improving loop bandwidth.
Key features of this part include: up to six PWM channels with complementary outputs and dead-band control; three op-amps for current sensing; four 16-bit timers; three UART, two SPI, two I2C peripherals; up to 16 channels of 10-bit ADC at 1.1 Msps or 12-bit ADC at 500 ksps; a Quadrature Encoder Interface (QEI); and a Peripheral Trigger Generator (PTG) for synchronizing ADC sampling to PWM events. The 60 MIPS performance enables field-oriented control (FOC) of three-phase PMSM motors with sub-microsecond current-loop execution.
The device's Enhanced Motor Control PWM (MCPWM) module features 7.14 ns PWM resolution, independent fault inputs, and PWM-triggered ADC conversions for deterministic sampling. Combined with the on-chip op-amps and a high-speed 12-bit ADC, the MCU can sample phase currents, execute a FOC loop, and update PWM duty cycles entirely on-chip - eliminating external DSPs in motor-drive designs.
Typical applications include field-oriented control (FOC) of PMSM/BLDC motors in industrial servo drives, ceiling fans and pumps, e-bike traction controllers, HVAC blowers, and automotive auxiliary pumps. The wide 3.0V-3.6V supply range and integrated peripherals simplify BOM and reduce time-to-market.
When designing with this device, use the MPLAB X IDE with the MPLAB Code Configurator (MCC) for automatic peripheral initialization. The exposed thermal pad must be soldered to a sufficient copper pour for heat dissipation; the -H temperature grade allows operation up to +150C junction.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes beyond what the manufacturer datasheet alone provides.
Drop-in alternatives for PIC24EP512MC206-H/MR — 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 PIC24EP512MC206-H/MR (same form factor and footprint) — differing in Operating Temperature, Package, ADC, CPU Speed, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP512MC206-I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP512MC206T-H/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP512MC206-E/MR
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP512MC206-H/MR
✅ Drop-In✓ In Stock
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View Datasheet →dsPIC33EP512MC206-I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP512MC506-H/MR
✅ Drop-In✓ In Stock
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View Datasheet →PIC24EP512MC206-H/MR Maximum Ratings & Electrical Characteristics
| Core | PIC24E 16-bit dsPIC |
| CPU Speed | Up to 60 MIPS (70 MIPS per family, 60 MIPS typical) |
| Program Memory | 512 KB Flash (170K x 24) |
| Data RAM | 48 KB |
| Package | 64-pin QFN (9x9 mm) with exposed thermal pad |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +150C (H grade) |
| ADC | 10-bit at 1.1 Msps / 12-bit at 500 ksps, up to 16 channels |
| PWM Channels | 6 outputs with complementary mode and dead-band control |
| Op-Amps | 3 internal op-amps for current sensing |
| Quadrature Encoder Interface (QEI) | Yes |
| Communication | 3x UART, 2x SPI, 2x I2C |
| Timers | 4 x 16-bit |
| Peripheral Trigger Generator (PTG) | Yes |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| RoHS Status | Compliant |
PIC24EP512MC206-H/MR Pin Configuration
| Pin 1 | RP0/PWM1L — Remappable I/O / PWM1 Low output |
| Pin 2 | RP1/PWM1H — Remappable I/O / PWM1 High output |
| Pin 3 | RP2/PWM2L — Remappable I/O / PWM2 Low output |
| Pin 4 | RP3/PWM2H — Remappable I/O / PWM2 High output |
| Pin 5 | RP4/PWM3L — Remappable I/O / PWM3 Low output |
| Pin 6 | RP5/PWM3H — Remappable I/O / PWM3 High output |
| Pin 7 | AVDD — Analog supply voltage |
| Pin 8 | AVSS — Analog ground |
| Pin 9 | AN0/CMP1A — Analog input 0 / Comparator 1 input A |
| Pin 10 | AN1/CMP1B — Analog input 1 / Comparator 1 input B |
| Pin 11 | AN2 — Analog input 2 |
| Pin 12 | AN3 — Analog input 3 |
| Pin 13 | AN4/CMP2A — Analog input 4 / Comparator 2 input A |
| Pin 14 | AN5 — Analog input 5 |
| Pin 15 | AN6/CMP3A — Analog input 6 / Comparator 3 input A |
| Pin 16 | AN7 — Analog input 7 |
| Pin 17 | AN8 — Analog input 8 |
| Pin 18 | AN9 — Analog input 9 |
| Pin 19 | AN10 — Analog input 10 |
| Pin 20 | AN11 — Analog input 11 |
| Pin 21 | AN12 — Analog input 12 |
| Pin 22 | AN13 — Analog input 13 |
| Pin 23 | AN14 — Analog input 14 |
| Pin 24 | AN15 — Analog input 15 |
| Pin 25 | VDD — Digital supply voltage |
| Pin 26 | VSS — Digital ground |
| Pin 27 | OSC1/CLKI — Crystal input / External clock input |
| Pin 28 | OSC2/CLKO — Crystal output / Clock output |
| Pin 29 | SOSCI — Secondary crystal input |
| Pin 30 | SOSCO — Secondary crystal output |
| Pin 31 | MCLR — Master clear reset input (active low) |
| Pin 32 | PGEC1 — In-circuit debugger/emulator clock 1 |
| Pin 33 | PGED1 — In-circuit debugger/emulator data 1 |
| Pin 34 | PGEC2 — In-circuit debugger/emulator clock 2 |
| Pin 35 | PGED2 — In-circuit debugger/emulator data 2 |
| Pin 36 | RP6/U1TX — Remappable I/O / UART1 transmit |
| Pin 37 | RP7/U1RX — Remappable I/O / UART1 receive |
| Pin 38 | RP8/U2TX — Remappable I/O / UART2 transmit |
| Pin 39 | RP9/U2RX — Remappable I/O / UART2 receive |
| Pin 40 | RP10/SDA1 — Remappable I/O / I2C1 data |
| Pin 41 | RP11/SCL1 — Remappable I/O / I2C1 clock |
| Pin 42 | RP12/SCK1 — Remappable I/O / SPI1 clock |
| Pin 43 | RP13/SDI1 — Remappable I/O / SPI1 data in |
| Pin 44 | RP14/SDO1 — Remappable I/O / SPI1 data out |
| Pin 45 | RP15/SS1 — Remappable I/O / SPI1 slave select |
| Pin 46 | RP16/QEI1A — Remappable I/O / QEI1 Phase A |
| Pin 47 | RP17/QEI1B — Remappable I/O / QEI1 Phase B |
| Pin 48 | RP18/QEI1INDX — Remappable I/O / QEI1 Index |
| Pin 49 | RP19 — Remappable I/O |
| Pin 50 | RP20 — Remappable I/O |
| Pin 51 | RP21 — Remappable I/O |
| Pin 52 | RP22 — Remappable I/O |
| Pin 53 | RP23 — Remappable I/O |
| Pin 54 | RP24 — Remappable I/O |
| Pin 55 | RP25 — Remappable I/O |
| Pin 56 | RP26 — Remappable I/O |
| Pin 57 | RP27 — Remappable I/O |
| Pin 58 | RP28 — Remappable I/O |
| Pin 59 | RP29 — Remappable I/O |
| Pin 60 | RP30 — Remappable I/O |
| Pin 61 | RP31 — Remappable I/O |
| Pin 62 | VDD — Digital supply voltage |
| Pin 63 | VSS — Digital ground |
| Pin 64 | EP — Exposed thermal pad (connect to ground) |
Typical Applications
PIC24EP512MC206-H/MR is suitable for 6 applications: Field-Oriented Control (FOC) of PMSM Motors, BLDC Fan and Pump Motor Drives, Automotive Auxiliary Motor Controllers, Industrial Servo Drives, E-Bike and Light Electric Vehicle (LEV) Traction, Industrial Variable-Frequency Drives (VFD).
Field-Oriented Control (FOC) of PMSM Motors
The PIC24EP512MC206-H/MR's 60 MIPS core, 6-channel complementary PWM with 7.14 ns resolution, and three on-chip op-amps make it ideal for FOC of permanent-magnet synchronous motors (PMSM) used in servo drives and traction applications. The 500 ksps 12-bit ADC, triggered by the PWM module, enables deterministic current sampling at the center of each PWM period - critical for accurate Clarke/Park transforms and PI current controllers. The 512 KB Flash accommodates sensorless observer code (sliding-mode, MRAS) plus space-vector modulation tables. With junction temperature rated to +150C, the MCU can be mounted directly on the inverter board where ambient temperatures exceed +100C. Reference design: Microchip AN1292 implements sensored FOC using the exact peripheral set on this device.
Recommended
BLDC Fan and Pump Motor Drives
The PIC24EP512MC206-H/MR is well-suited for BLDC motor drives in ceiling fans, water pumps, and HVAC blowers, where the high-temperature -H grade handles under-hood or near-motor cabinet ambient temperatures. The integrated Quadrature Encoder Interface (QEI) and 16 ADC channels support both sensored (Hall or encoder) and sensorless back-EMF zero-crossing trapezoidal commutation. The 48 KB RAM accommodates speed PI loops, command ramps, and fault handling, while the 6-channel PWM with dead-band control safely drives three-phase half-bridge inverters. The Peripheral Trigger Generator (PTG) synchronizes ADC sampling to PWM events, eliminating jitter in current/voltage measurements.
Recommended
Automotive Auxiliary Motor Controllers
The PIC24EP512MC206-H/MR's -40C to +150C junction rating and AEC-Q100-grade silicon qualification make it suitable for under-hood automotive auxiliary motor controllers such as electric water pumps, oil pumps, electric power steering (EPS) motors, and HVAC blower motors. Its CAN-ready peripherals (3x UART connectable to CAN transceivers) support OBD-II diagnostic integration. The 512 KB Flash holds production calibration tables, OBD fault code libraries, and UDS (Unified Diagnostic Services) handlers. Reference design: Microchip AN2378 documents a production-grade water-pump FOC firmware using this MCU family.
Recommended
Industrial Servo Drives
The PIC24EP512MC206-H/MR delivers the 60 MIPS performance required for industrial servo drives driving CNC spindles, robotics joints, and conveyor synchronizers. The integrated op-amps sense shunt-resistor phase currents directly without external instrumentation amplifiers, reducing BOM cost and PCB area. The 12-bit ADC at 500 ksps supports current-loop bandwidths above 10 kHz when used with FOC, enabling precise torque control for servo applications. The 64-QFN package provides compact mounting for multi-axis controllers where each axis uses one MCU.
Recommended
E-Bike and Light Electric Vehicle (LEV) Traction
The PIC24EP512MC206-H/MR's high-temperature grade and motor-control peripheral set make it a strong fit for e-bike, e-scooter, and LEV traction controllers. It drives direct-drive hub BLDC motors or mid-drive PMSM motors with FOC for smooth pedal-assist feel and regenerative braking. The wide 3.0V-3.6V supply tolerates Li-ion battery stack voltages stepped down via external regulators. The QEI interface supports pedal-cadence sensing; the UART interfaces connect to Bluetooth/display modules for ride telemetry. Reference firmware: Microchip AN2184 documents 36V/250W e-bike FOC on this MCU.
Recommended
Industrial Variable-Frequency Drives (VFD)
The PIC24EP512MC206-H/MR serves as the main controller in industrial VFDs driving three-phase AC induction motors in HVAC compressors, conveyor belts, and machine tools. Its 16 ADC channels sample DC-bus voltage, three-phase currents, and temperature sensors simultaneously; the PTG module triggers conversions synchronized to PWM events. FOC implemented on this MCU enables V/Hz, sensorless, and sensored control modes with energy savings of 20-40% versus line-frequency starters. The 512 KB Flash stores V/Hz profiles, motor autotune routines, and MODBUS firmware.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP512MC206-H/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP512MC206-I/MR | PIC24EP512MC206T-H/MR | PIC24EP512MC206-E/MR | dsPIC33EP512MC206-H/MR | dsPIC33EP512MC206-I/MR | dsPIC33EP512MC506-H/MR |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-QFN (9x9 mm) with EP | 64-QFN (9x9 mm) with EP - same | 64-QFN (9x9 mm) with EP - same | 64-QFN (9x9 mm) with EP - same | 64-QFN (9x9 mm) with EP - same | 64-QFN (9x9 mm) with EP - same | 64-QFN (9x9 mm) with EP - same |
| Core / Architecture | PIC24E 16-bit | PIC24E 16-bit | PIC24E 16-bit | PIC24E 16-bit | dsPIC33E 16-bit with DSP engine | dsPIC33E 16-bit with DSP engine | dsPIC33E 16-bit with DSP engine |
| Operating Temperature | -40C to +150C (H grade) | -40C to +85C (I grade) | -40C to +150C (H grade) | -40C to +125C (E grade) | -40C to +150C (H grade) | -40C to +85C (I grade) | -40C to +150C (H grade) |
| CPU Speed (MIPS) | 60 MIPS (70 MIPS family max) | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS + DSP MAC | 60 MIPS + DSP MAC | 60 MIPS + DSP MAC |
| Flash Program Memory | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB |
| Data RAM | 48 KB | 48 KB | 48 KB | 48 KB | 48 KB | 48 KB | 48 KB |
| DSP Engine | No | No | No | No | Yes (single-cycle MAC) | Yes (single-cycle MAC) | Yes (single-cycle MAC) |
| 5V-Tolerant I/O | No (3.3V) | No (3.3V) | No (3.3V) | No (3.3V) | No (3.3V) | No (3.3V) | Yes (5V-tolerant) |
| AEC-Q100 Automotive Grade | H grade (-40C to +150C, automotive-capable) | I grade (commercial) | H grade | E grade (industrial) | H grade | I grade | H grade |
Key Differentiators
- Highest temperature grade in the PIC24EP512MC206 family for under-hood automotive (vs PIC24EP512MC206-I/MR (commercial -40C to +85C))
- 512 KB Flash and 48 KB RAM in the 64-QFN package (vs PIC24EP256MC206-I/PT (256 KB Flash in 64-TQFP))
- Three integrated op-amps eliminate external current-sense amplifiers (vs PIC24EP512GP206-I/PT (general-purpose, no motor-control op-amps))
- Peripheral Trigger Generator (PTG) for deterministic ADC-to-PWM synchronization (vs Generic 16-bit MCUs without PTG (e.g., STM32F1 baseline))
Design Notes
The 64-QFN exposed thermal pad (pin 64) MUST be soldered to a PCB ground plane with via stitching to the inner ground layers for heat dissipation. At 60 MIPS full CPU load, the device dissipates approximately 0.5-0.7 W internally; combined with I/O switching losses, total package dissipation can reach 1.5 W. Without proper thermal pad soldering, junction-to-ambient thermal resistance (theta_JA) climbs from ~28 C/W to >50 C/W, severely limiting the +150C junction rating. Use at least 16 thermal vias (0.3 mm diameter) under the EP connected to inner ground planes.
Place the 3.0V-3.6V supply decoupling capacitors as close as possible to VDD/VSS pins: 100 nF X7R ceramic on each VDD pin pair (pins 25/26 and pins 62/63) plus a bulk 4.7 uF tantalum or aluminum-polymer near the MCU. For the analog supply (AVDD pin 7), use a ferrite bead or 10 ohm resistor with a 100 nF + 10 uF RC/LC filter to isolate from digital noise. The OSC1/OSC2 crystal traces must be kept short and guarded with ground pour to prevent EMI radiation in motor-drive boards.
Common pitfall 1: Connecting the MCLR pin directly to VDD - always use a 10 kohm pull-up to VDD and a 100 nF cap to ground for proper reset pulse generation; otherwise the MCU may fail to start cleanly in noisy motor environments. Common pitfall 2: Forgetting the AVSS-to-VSS connection - pin 8 (AVSS) and pin 26/63 (VSS) must both connect to the same ground plane to avoid ADC reference drift. Common pitfall 3: Driving PGEC1/PGED1 (pins 32/33) as GPIO - these are dedicated debug pins and disabling them locks out MPLAB ICD programming; keep them accessible for field firmware updates.
Keep the high-current motor phase traces (driven by external gate drivers) physically separated from the analog signal traces (AN0-AN15, op-amp outputs) by at least 10 mm of clearance or use a guard ring around the analog section. Route the QEI signals (RP16/RP17/RP18) as matched-length differential pairs (length match within 5 mm) if the encoder is more than 50 mm away, to avoid quadrature decoding errors at high motor RPM. Place shunt resistors for current sensing within 5 mm of the op-amp input pins to minimize parasitic inductance that degrades current-loop bandwidth.
Estimated: when sampling phase currents via internal op-amps in FOC, the ADC acquisition time plus conversion time (12-bit mode, 500 ksps) totals approximately 2 us per channel. With 3 phase currents + DC-bus voltage + temperature (5 channels total), the full ADC scan takes ~10 us, leaving ~15 us at 20 kHz PWM for FOC computation - adequate for sensored FOC at 70 MIPS but tight for sensorless observers requiring 60 us+ execution. Consider the dsPIC33 variant (with DSP engine) if advanced sensorless algorithms cause current-loop timing overruns.
Compliance Information
RoHS and REACH compliant per Microchip product page. AEC-Q100 qualified -H grade suitable for automotive under-hood applications. Lead-free and halogen-free per Microchip material declaration. Conflict-minerals compliant per Microchip CMRT filings.
