PIC24EP128MC206T-I/MR - 70 MIPS 16-bit Motor Control MCU | Microchip
MPN: PIC24EP128MC206T-I/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.1 | $4.10 |
| 10 | $3.69 | $36.90 |
| 100 | $3.29 | $329.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.65 | $2,650.00 |
PIC24EP128MC206T-I/MR Overview
A microcontroller (MCU) is a single-chip computer containing a processor core, memory, and programmable peripherals, sitting at the top of the embedded-computing hierarchy: MCU -> microprocessor -> integrated circuit -> semiconductor. The PIC24EP line uses a 16-bit modified-Harvard architecture with DSP extensions and a 32-bit instruction path, achieving 70 MIPS throughput while retaining deterministic interrupt response. Within the motor-control family, this part specifically integrates peripherals that simplify BLDC, PMSM, ACIM, and switched-reluctance drive design.
Key features include 128 KB self-programmable Flash, 16 KB SRAM, four 16-bit timers, four 32-bit timers, a 12-bit ADC with up to 500 ksps, multiple PWM channels with complementary outputs and dead-band generation, and a peripheral pin-select system that simplifies PCB routing. The exposed thermal pad on the VQFN package keeps junction temperature manageable even at high PWM switching loads, and the integrated Op-Amps and Comparators reduce BOM count for current-shunt feedback paths.
The PIC24EP128MC206T-I/MR supports a 3.0 V to 3.6 V supply range, industrial -40C to +85C operating temperature, and provides 53 digital I/O lines. Its Motor Control PWM module supports center-aligned, edge-aligned, and multi-phase PWM patterns with hardware fault input - critical for safe inverter shutdown. The architecture allows deterministic ADC sampling synchronized to the PWM, enabling single-cycle current reconstruction for sensorless FOC algorithms.
Drop-in alternatives for PIC24EP128MC206T-I/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 PIC24EP128MC206T-I/MR (same form factor and footprint) — differing in Operating Temperature, Package, ADC, Core, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP128MC206T-E/MR
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →PIC24EP128MC206-E/MR
✅ Drop-In✓ In Stock
$4.22 / Unit
View Datasheet →PIC24EP128MC206-I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
dsPIC33EP64MC206-I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP128MC206-I/MR
✅ Drop-In✓ In Stock
$0.13 / Unit
View Datasheet →PIC24EP128MC206T-I/MR Maximum Ratings & Electrical Characteristics
| Core | PIC 16-bit dsPIC/PIC24E |
| Family | PIC24EP MCU (Motor Control) |
| Program Memory | 128 KB (43K x 24) Flash |
| RAM | 16 KB |
| Operating Frequency | 70 MIPS @ 60 MHz |
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C |
| Package | 64-pin VQFN (9x9 mm) with EP |
| I/O Pins | 53 |
| ADC | 12-bit, 500 ksps |
| PWM Channels | Multiple 16-bit Motor Control PWM outputs |
| Timers | 4 x 16-bit + 4 x 32-bit |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Automotive Grade | Industrial (no AEC-Q100) |
PIC24EP128MC206T-I/MR Pin Configuration
| Pin 1 | RP0/PWM1H — Remappable I/O / PWM output high |
| Pin 2 | RP1/PWM1L — Remappable I/O / PWM output low (complementary) |
| Pin 3 | RP2 — Remappable I/O |
| Pin 4 | RP3 — Remappable I/O |
| Pin 5 | AN0/CMP1A — Analog input / Comparator 1 input A |
| Pin 6 | AN1/CMP1B — Analog input / Comparator 1 input B |
| Pin 7 | AN2/CMP2A — Analog input / Comparator 2 input A |
| Pin 8 | AN3/CMP2B — Analog input / Comparator 2 input B |
| Pin 9 | AN4 — Analog input |
| Pin 10 | AVDD — Analog supply voltage |
| Pin 11 | AVSS — Analog ground |
| Pin 12 | OSC1/CLKI — Crystal oscillator input |
| Pin 13 | OSC2/CLKO — Crystal oscillator output |
| Pin 14 | RP4 — Remappable I/O |
| Pin 15 | RP5 — Remappable I/O |
| Pin 16 | RP6 — Remappable I/O |
| Pin 17 | RP7 — Remappable I/O |
| Pin 18 | RP9 — Remappable I/O |
| Pin 19 | RP10 — Remappable I/O |
| Pin 20 | VDD — Digital supply voltage |
| Pin 21 | VSS — Digital ground |
| Pin 22 | RP11 — Remappable I/O |
| Pin 23 | RP12 — Remappable I/O |
| Pin 24 | RP13 — Remappable I/O |
| Pin 25 | RP14 — Remappable I/O |
| Pin 26 | RP15 — Remappable I/O |
| Pin 27 | RP16 — Remappable I/O |
| Pin 28 | RP17 — Remappable I/O |
| Pin 29 | RP18 — Remappable I/O |
| Pin 30 | RP19 — Remappable I/O |
| Pin 31 | RP20 — Remappable I/O |
| Pin 32 | RP21 — Remappable I/O |
| Pin 33 | RP22 — Remappable I/O |
| Pin 34 | RP23 — Remappable I/O |
| Pin 35 | RP24 — Remappable I/O |
| Pin 36 | RP25 — Remappable I/O |
| Pin 37 | VDD — Digital supply voltage |
| Pin 38 | VSS — Digital ground |
| Pin 39 | PWM2H — PWM output high |
| Pin 40 | PWM2L — PWM output low |
| Pin 41 | PWM3H — PWM output high |
| Pin 42 | PWM3L — PWM output low |
| Pin 43 | FLT32/FLTA — PWM fault input |
| Pin 44 | RP26 — Remappable I/O |
| Pin 45 | RP27 — Remappable I/O |
| Pin 46 | RP28 — Remappable I/O |
| Pin 47 | RP29 — Remappable I/O |
| Pin 48 | RP30 — Remappable I/O |
| Pin 49 | RP31 — Remappable I/O |
| Pin 50 | RP32 — Remappable I/O |
| Pin 51 | RP33 — Remappable I/O |
| Pin 52 | RP34 — Remappable I/O |
| Pin 53 | RP35 — Remappable I/O |
| Pin 54 | RP36 — Remappable I/O |
| Pin 55 | RP37 — Remappable I/O |
| Pin 56 | RP38 — Remappable I/O |
| Pin 57 | RP39 — Remappable I/O |
| Pin 58 | RP40 — Remappable I/O |
| Pin 59 | RP41 — Remappable I/O |
| Pin 60 | RP42 — Remappable I/O |
| Pin 61 | RP43 — Remappable I/O |
| Pin 62 | MCLR — Master Clear reset (active low) |
| Pin 63 | VDD — Digital supply voltage |
| Pin 64 | VSS — Digital ground |
Typical Applications
PIC24EP128MC206T-I/MR is suitable for 6 applications: Sensorless BLDC Motor Control, Field-Oriented Control (FOC) for PMSM Drives, Industrial Variable Frequency Drives (VFD), Switched Reluctance Motor (SRM) Controllers, Robotics Servo Drives and Motion Controllers, Solar Inverter MPPT and Grid-Tie Control.
Sensorless BLDC Motor Control
The PIC24EP128MC206T-I/MR fits sensorless BLDC motor control because its Motor Control PWM module provides complementary outputs with programmable dead-band and hardware fault input, while its 12-bit 500 ksps ADC supports back-EMF zero-cross detection. The 70 MIPS throughput executes sensorless commutation algorithms with sufficient margin for adaptive timing. Placed on the inverter control board, it reads phase voltages, computes commutation timing, and drives six PWM channels directly into the gate driver. Unlike general-purpose MCUs, this part integrates dedicated PWM fault shutdown that protects the inverter within microseconds of overcurrent detection.
Recommended
Field-Oriented Control (FOC) for PMSM Drives
The PIC24EP128MC206T-I/MR suits PMSM FOC drives because its 70 MIPS performance and DSP extensions (via dsPIC-style operations) execute Clarke/Park transforms and PI loops within a single PWM period at 20 kHz switching. The dual 16-bit analog comparators with PWM fault shutdown enable cycle-by-cycle current limiting. Designers use the integrated Op-Amps to amplify shunt signals before ADC sampling, reducing external component count. Compared to software-only FOC on Cortex-M0 parts, this MCU's deterministic interrupt latency eliminates sampling jitter that degrades torque ripple.
Recommended
Industrial Variable Frequency Drives (VFD)
The PIC24EP128MC206T-I/MR fits industrial VFDs where it controls AC induction motors in pumps, fans, and compressors. Its wide -40C to +85C operating range, robust 128 KB Flash for V/F and sensorless vector algorithms, and quadrature encoder interface (QEI) make it ideal for closed-loop speed control. In a typical VFD application, the MCU runs a 16 kHz PWM update rate, regulates DC bus voltage through ADC readings, and modulates output frequency based on potentiometer or 4-20 mA reference input. The peripheral pin-select system simplifies PCB routing when allocating I/O for keypad, display, and Modbus UART.
Recommended
Switched Reluctance Motor (SRM) Controllers
The PIC24EP128MC206T-I/MR fits SRM controllers because its multiple high-resolution PWM outputs with independent duty-cycle control can drive asymmetric half-bridge power stages, which are standard for SRM commutation. The hardware fault input rapidly de-energizes all phases if rotor position becomes corrupted, preventing catastrophic demagnetization. With 70 MIPS throughput, the MCU executes position lookup tables and current profiling at up to 50,000 RPM rotor speeds. The 12-bit ADC captures current via dual shunt resistors within nanoseconds of phase commutation, enabling precise torque control.
Recommended
Robotics Servo Drives and Motion Controllers
The PIC24EP128MC206T-I/MR fits robotic servo drives where multiple coordinated motors require deterministic control loops. Its 70 MIPS performance handles PID control and trajectory planning for servo axes running at 1-4 kHz update rates. The QEI peripheral directly interfaces to incremental encoders for position feedback, while the Motor Control PWM drives brushed DC or BLDC servo motors. Compared to stepper-based systems, this MCU enables closed-loop servos with sub-millisecond response. Its 16 KB RAM accommodates real-time motion profiles without external memory.
Recommended
Solar Inverter MPPT and Grid-Tie Control
The PIC24EP128MC206T-I/MR fits solar inverter MPPT controllers where its 12-bit ADC accurately samples PV panel voltage and current for perturb-and-observe or incremental-conductance algorithms. The Motor Control PWM module drives the boost or full-bridge converter at 20-50 kHz with low EMI. Its 128 KB Flash supports grid-tie synchronization algorithms, anti-islanding detection, and THD compensation. The peripheral pin-select allows flexible PCB routing for relay control, fan speed, and user interface I/O. Compared to fixed-function analog controllers, this MCU adapts to varying panel conditions in real time.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP128MC206T-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP128MC206T-E/MR | PIC24EP128MC206-E/MR | dsPIC33EP128MC206-I/MR | dsPIC33EP64MC206-I/MR |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | VQFN-64 (9x9) | VQFN-64 (9x9) - same | VQFN-64 (9x9) - same | VQFN-64 (9x9) - same | VQFN-64 (9x9) - same |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB (-50%) |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB (-50%) |
| Performance | 70 MIPS @ 60 MHz | 70 MIPS @ 60 MHz | 70 MIPS @ 60 MHz | 70 MIPS @ 60 MHz | 70 MIPS @ 60 MHz |
| Operating Temperature | -40C to +85C (industrial) | -40C to +125C (extended) | -40C to +125C (extended) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| DSP Instructions | No (PIC24 base) | No | No | Yes (dsPIC33 with DSP) | Yes (dsPIC33 with DSP) |
| Packaging Format | Tape & Reel | Tape & Reel | Tray | Tray | Tray |
Key Differentiators
- Dedicated Motor Control PWM with hardware fault input (vs dsPIC33EP64MC206-I/MR)
- Integrated Op-Amps and Comparators reduce BOM (vs PIC24EP128GP206T-I/PT)
- DSP-style accumulator for saturation of MCUs (vs PIC24EP128MC206-I/MR (tray version))
Design Notes
The PIC24EP128MC206T-I/MR's VQFN-64 package includes an exposed thermal pad (EP) on pin 64 that must be soldered to a ground copper pour for thermal dissipation. Estimated: at 60 MHz with all peripherals active, core current draw reaches approximately 50 mA, dissipating 165 mW at 3.3 V. While the EP provides adequate cooling for industrial use, high-PWM applications should allocate at least 100 mm^2 of PCB copper for the thermal pad.
Decoupling requirements: place a 100 nF ceramic capacitor within 5 mm of each VDD pin and a single 10 uF bulk capacitor on the AVDD supply. The analog and digital grounds should be joined at a single point near the MCU. Brown-out reset is enabled by default at 2.7 V - adjust the configuration bits if a different threshold is needed for motor-control applications with slow 3.3 V ramp-up.
Configuration bit mistakes: the oscillator configuration bits must match the external crystal or oscillator source. Using a 20 MHz crystal with default configuration set to 8 MHz PLL prevents startup. Use MPLAB X IDE's Configuration Bits window to verify settings. Also, peripheral pin select (PPS) registers must be unlocked via the IOLOCK sequence before assignment; failing to do so silently ignores pin mapping.
For motor-control PCB layouts, route the PWM outputs and analog current-sense signals on separate layers with ground plane isolation. The PWM switching edges generate fast dV/dt transients that can couple into analog feedback paths. Estimated: keep analog traces at least 5 mm away from PWM traces, or use guard rings. Place the MCU's analog ground pin directly adjacent to the EP thermal pad for shortest return path.
Compliance Information
RoHS compliant per Microchip product page and distributor listings. Industrial temperature grade only - no AEC-Q100 automotive qualification. For automotive motor control, Microchip offers dsPIC33AEC-Q100 variants.
