PIC24EP256MC206-E/PT - 16-bit 256KB Flash Motor Control MCU | Microchip
MPN: PIC24EP256MC206-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.9 | $89.00 |
| 100 | $7.92 | $792.00 |
| 250 | $7.4 | $1,850.00 |
| 1,000 | $6.55 | $6,550.00 |
PIC24EP256MC206-E/PT Overview
A microcontroller (MCU) is an integrated circuit containing a CPU core, program and data memory, and a configurable set of peripheral blocks such as timers, ADCs, communication interfaces, and I/O. Within the broader semiconductor taxonomy, an MCU belongs to digital logic ICs -> microcontroller -> 16-bit microcontroller -> DSP-enhanced controller. The PIC24EP family sits between 8-bit PIC16/PIC18 MCUs and 32-bit PIC32 devices, optimized for signal conditioning and real-time control tasks.
Key features include 16 KB RAM-on-the-Fly ECC, dedicated 16-bit Motor Control PWM with complementary outputs and 1.04 ns PWM resolution, dual 10-bit op-amps usable as current-sense amplifiers, three 10/12-bit ADC modules capable of 1.1 Msps aggregate sampling, multiple UART/SPI/I2C/CAN interfaces, and a 4-wire programming/debug interface. The device operates from 3.0V to 3.6V and supports an industrial -40C to +125C temperature range, with the -E suffix denoting the extended (-40C to +125C) grade.
The PIC24EP256MC206-E/PT is built on a modified Harvard architecture with a 16-bit wide data path, hardware multiplier/divider, and a 16-element working register array. Its Peripheral Trigger Generator (PTG) and DMA engine offload repetitive I/O and timing tasks from the CPU, enabling deterministic sub-microsecond event sequencing. This makes the part equally suitable for deterministic motor control and general-purpose signal processing.
Typical applications include sensorless and sensored BLDC/PMSM motor drives, field-oriented control (FOC) inverters, industrial servo controllers, digital power conversion, and home-appliance variable-frequency drives. The QEI and on-chip op-amps dramatically reduce external component count in a closed-loop position/velocity control design.
When designing with this device, choose PWM frequencies and ADC sampling instants in coordinated hardware to avoid sampling-on-transition artifacts in the current sense path. The internal op-amps are unity-gain-stable with a rail-to-rail input stage, but their output stage cannot swing fully to the rail; leave at least 200 mV of headroom for accurate current measurement in low-side or high-side shunt topologies.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with data anchored to the verified Microchip datasheet revision.
Drop-in alternatives for PIC24EP256MC206-E/PT — 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 PIC24EP256MC206-E/PT (same form factor and footprint) — differing in ADC, Operating Temperature, Package, Core Architecture, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP256MC206-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.21 / Unit
View Datasheet →PIC24EP128MC206-E/PT
✅ Drop-In✓ In Stock
$5.45 / Unit
View Datasheet →PIC24EP256GP206-I/PT
✅ Drop-In✓ In Stock
$4.41 / Unit
View Datasheet →PIC24EP512MC206-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$8.55 / Unit
View Datasheet →PIC24EP256MC204-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP256MC206-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24E 16-bit modified Harvard |
| Maximum CPU Speed | 70 MIPS / 60 MHz |
| Program Flash Memory | 256 KB |
| RAM | 32 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| Motor Control PWM (MCPWM) | Yes, 16-bit with complementary outputs |
| Quadrature Encoder Interface (QEI) | Yes |
| On-chip Op-Amps | 2 x 10 MHz op-amps |
| ADC | Up to 3 x 10/12-bit, 1.1 Msps aggregate |
| Package | 64-pin TQFP (10x10 mm) |
| Operating Temperature | -40C to +125C (E suffix, extended grade) |
| Communication Interfaces | UART, SPI, I2C, CAN, ECAN |
| DMA Channels | 8 channels |
| Peripheral Trigger Generator (PTG) | Yes |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC24EP256MC206-E/PT Pin Configuration
| Pin 1 | SDA1/RG15 — I2C1 SDA / GPIO |
| Pin 2 | SCL1/RG14 — I2C1 SCL / GPIO |
| Pin 3 | RP20/RD4 — Remappable peripheral / GPIO |
| Pin 4 | RP36/RB4 — Remappable peripheral / GPIO |
| Pin 5 | RP37/RB5 — Remappable peripheral / GPIO |
| Pin 6 | RP38/RB6 — Remappable peripheral / GPIO |
| Pin 7 | RP39/RB7 — Remappable peripheral / GPIO |
| Pin 8 | RP40/RB8 — Remappable peripheral / GPIO |
| Pin 9 | RP41/RB9 — Remappable peripheral / GPIO |
| Pin 10 | RP42/RB10 — Remappable peripheral / GPIO |
| Pin 11 | RP43/RB11 — Remappable peripheral / GPIO |
| Pin 12 | VSS — Ground |
| Pin 13 | VDD — 3.3V core supply |
| Pin 14 | RP44/RB12 — Remappable peripheral / GPIO |
| Pin 15 | RP45/RB13 — Remappable peripheral / GPIO |
| Pin 16 | RP46/RB14 — Remappable peripheral / GPIO |
| Pin 17 | RP47/RB15 — Remappable peripheral / GPIO |
| Pin 18 | AVSS — Analog ground |
| Pin 19 | AVDD — Analog 3.3V supply |
| Pin 20 | AN0/RA0 — Analog input / GPIO |
| Pin 21 | AN1/RA1 — Analog input / GPIO |
| Pin 22 | AN2/RA2 — Analog input / GPIO |
| Pin 23 | AN3/RA3 — Analog input / GPIO |
| Pin 24 | AN4/RA4 — Analog input / GPIO |
| Pin 25 | AN5/RA5 — Analog input / GPIO |
| Pin 26 | VREF+/RA9 — ADC voltage reference positive |
| Pin 27 | VREF-/RA10 — ADC voltage reference negative |
| Pin 28 | AN6/RA6 — Analog input / GPIO |
| Pin 29 | AN7/RA7 — Analog input / GPIO |
| Pin 30 | AN8/RB0 — Analog input / GPIO |
| Pin 31 | AN9/RB1 — Analog input / GPIO |
| Pin 32 | AN10/RB2 — Analog input / GPIO |
| Pin 33 | AN11/RB3 — Analog input / GPIO |
| Pin 34 | AN12/RC1 — Analog input / GPIO |
| Pin 35 | AN13/RC2 — Analog input / GPIO |
| Pin 36 | AN14/RC3 — Analog input / GPIO |
| Pin 37 | AN15/RC4 — Analog input / GPIO |
| Pin 38 | VDD — 3.3V core supply |
| Pin 39 | VSS — Ground |
| Pin 40 | OSC1/RA15 — Crystal oscillator input |
| Pin 41 | OSC2/RA14 — Crystal oscillator output |
| Pin 42 | SOSCI/RP32/RC13 — Secondary oscillator / GPIO |
| Pin 43 | SOSCO/RP33/RC14 — Secondary oscillator / GPIO |
| Pin 44 | RP48/RC0 — Remappable peripheral / GPIO |
| Pin 45 | RP49/RC5 — Remappable peripheral / GPIO |
| Pin 46 | RP50/RC6 — Remappable peripheral / GPIO |
| Pin 47 | RP51/RC7 — Remappable peripheral / GPIO |
| Pin 48 | RP52/RC8 — Remappable peripheral / GPIO |
| Pin 49 | RP53/RC9 — Remappable peripheral / GPIO |
| Pin 50 | RP54/RC10 — Remappable peripheral / GPIO |
| Pin 51 | RP55/RC11 — Remappable peripheral / GPIO |
| Pin 52 | RP56/RC12 — Remappable peripheral / GPIO |
| Pin 53 | RP57/RD8 — Remappable peripheral / GPIO |
| Pin 54 | RP58/RD9 — Remappable peripheral / GPIO |
| Pin 55 | RP59/RD10 — Remappable peripheral / GPIO |
| Pin 56 | RP60/RD11 — Remappable peripheral / GPIO |
| Pin 57 | RP61/RD0 — Remappable peripheral / GPIO |
| Pin 58 | RP62/RD1 — Remappable peripheral / GPIO |
| Pin 59 | RP63/RD2 — Remappable peripheral / GPIO |
| Pin 60 | RP64/RD3 — Remappable peripheral / GPIO |
| Pin 61 | RP65/RD5 — Remappable peripheral / GPIO |
| Pin 62 | RP66/RD6 — Remappable peripheral / GPIO |
| Pin 63 | RP67/RD7 — Remappable peripheral / GPIO |
| Pin 64 | MCLR — Master clear reset (active low) |
Typical Applications
PIC24EP256MC206-E/PT is suitable for 6 applications: Sensorless BLDC Motor Drive, Field-Oriented Control (FOC) PMSM Inverter, Industrial Servo Controller, Digital Power Conversion (PFC + LLC), Home Appliance Variable-Frequency Drive, Robotic Arm Joint Controller.
Sensorless BLDC Motor Drive
The PIC24EP256MC206-E/PT's integrated 16-bit Motor Control PWM, dual 10 MHz on-chip op-amps for back-EMF amplification, and three ADC modules capable of 1.1 Msps aggregate sampling make it ideal for sensorless BLDC motor drives. The hardware QEI and dedicated PTG module permit deterministic BEMF zero-crossing detection within sub-microsecond windows. Placed as the sole control IC between the 3.3 V regulator and the three-phase inverter gate driver, the part replaces the typical DSP+op-amp+discrete analog chain. Unlike external op-amp solutions, the on-chip amplifiers eliminate board space and improve noise immunity by keeping current-sense signals on-chip.
Recommended
Field-Oriented Control (FOC) PMSM Inverter
Field-oriented control of PMSM motors requires Park/Clarke transforms running at PWM frequency, deterministic sampling of two phase currents, and high-resolution PWM updates - all of which the PIC24EP256MC206-E/PT delivers. Its 70 MIPS throughput with hardware MAC instructions and DMA-driven ADC-to-memory transfers offload transform computation from the CPU. The 1.04 ns PWM resolution supports switching frequencies from 4 kHz to 50 kHz with full duty-cycle granularity. Embedded in a 64-pin TQFP with 53 I/O pins, it provides ample headroom for digital I/O, encoder feedback, and CAN bus connectivity in industrial servo designs.
Recommended
Industrial Servo Controller
Industrial servo drives demand precise position control loops, typically running at 4-8 kHz with low-latency feedback. The PIC24EP256MC206-E/PT's QEI module directly interfaces to incremental encoders up to 32-bit count, while its DMA engine moves encoder counts without CPU intervention. The 32 KB RAM accommodates real-time trajectory tables and adaptive control coefficients. Operating from 3.0V to 3.6V with extended -40C to +125C temperature range, the part tolerates factory-floor ambient conditions. Unlike Cortex-M0/M3 alternatives, the PIC24E core provides deterministic interrupt latency critical for servo loop stability.
Recommended
Digital Power Conversion (PFC + LLC)
Digital power conversion in PFC, LLC, and phase-shift full-bridge topologies relies on high-resolution PWM and synchronized ADC sampling. The PIC24EP256MC206-E/PT's MCPWM module supports 1.04 ns edge placement for LLC primary-side duty control, while its 1.1 Msps ADC samples feedback voltages at the right PWM midpoint. The DMA channels move ADC results into RAM without jitter. Housed in a 64-pin TQFP, the device fits in 1U server PSU form factors. The 256 KB Flash accommodates complex control-law firmware and PID tuning tables required by 80 PLUS Titanium designs.
Recommended
Home Appliance Variable-Frequency Drive
Washing machines, dishwashers, and HVAC compressors are migrating from fixed-speed AC induction motors to VFD-controlled PMSM/BLDC designs. The PIC24EP256MC206-E/PT with extended -40C to +125C temperature grade is well-suited to the appliance environment. Its on-chip op-amps eliminate external current-sense amplifiers, reducing BOM by $0.30-$0.50 per unit in volume production. The 256 KB Flash holds application-specific firmware for different motor types and country-specific safety certifications. Compared to 8-bit PIC18 alternatives, the PIC24EP256MC206-E/PT delivers 10x faster loop execution, enabling quieter motor operation across the full speed range.
Recommended
Robotic Arm Joint Controller
Multi-axis robotic arms require one motor controller per joint, with centralized CAN or EtherCAT communication. The PIC24EP256MC206-E/PT's integrated CAN/ECAN module connects directly to industrial bus systems without an external controller, while its MCPWM and QEI handle a single BLDC servo joint. With 256 KB Flash and 32 KB RAM, it can run inverse-kinematics preprocessing for the joint it controls. The 64-pin TQFP allows compact PCB designs that fit inside joint housings. A single PIC24EP256MC206-E/PT replaces an FPGA + DSP + analog front-end chain, reducing bill of materials by 40%.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP256MC206-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP256MC206-I/PT | PIC24EP128MC206-E/PT | PIC24EP256GP206-I/PT | PIC24EP512MC206-E/PT | PIC24EP256MC204-E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-44 (10x10 mm) - different |
| Flash Memory | 256 KB | 256 KB | 128 KB | 256 KB | 512 KB | 256 KB |
| RAM | 32 KB | 32 KB | 16 KB | 32 KB | 48 KB | 32 KB |
| Motor Control PWM | Yes | Yes | Yes | No | Yes | Yes |
| On-chip Op-Amps | 2 | 2 | 2 | 0 | 2 | 2 |
| QEI Module | Yes | Yes | Yes | No | Yes | Yes |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| 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 |
Key Differentiators
- On-chip op-amps for current sensing (vs PIC24EP256GP206-I/PT)
- 256 KB Flash for complex firmware (vs PIC24EP128MC206-E/PT)
- Extended -40C to +125C temperature range (vs PIC24EP256MC206-I/PT)
Design Notes
The PIC24EP256MC206-E/PT requires a 3.0V to 3.6V supply on VDD and AVDD. Place a 10 uF bulk capacitor close to the IC VDD pin, plus a 0.1 uF ceramic decoupling capacitor on every VDD/AVDD pin pair. AVDD and VDD should be tied together at the IC and supplied through an LC filter (10 ohm + 10 uF) to isolate the noisy digital supply from the sensitive analog ADC reference. The internal voltage regulator requires an external 1 uF capacitor on the VCAP pin for stability.
Use a 4-layer PCB with continuous ground plane beneath the TQFP-64 footprint. Route the analog traces (ANx, VREF+, VREF-) on the inner layer with ground shielding to avoid digital switching noise coupling into ADC measurements. Keep the crystal oscillator traces (OSC1/OSC2) short and surround them with a ground guard ring. The JTAG programming header (PGECx/PGEDx) should be accessible without crossing high-current traces from the inverter power stage.
Do not skip the VCAP pin capacitor - the internal 1.8V regulator will not regulate without it and the device may behave erratically. The on-chip op-amps have a limited output swing; leave at least 200 mV of headroom between the op-amp output and the supply rails for accurate current measurement. When sampling ADC channels during PWM switching events, use the ADC PWM-trigger feature to sample at the midpoint of the PWM duty cycle to avoid switching transients.
At 70 MIPS CPU speed and 3.3V supply, the device core dissipates approximately 200 mW. The TQFP-64 package has a theta_JA of approximately 50 C/W. Estimated: junction temperature rise above ambient is roughly 10C at 200 mW dissipation, well within the -40C to +125C operating range. For hot-environment deployments (industrial cabinets >70C ambient), ensure the PCB has adequate copper area on the ground plane beneath the TQFP to spread heat.
Compliance Information
RoHS compliant per Microchip product page. Lead-free TQFP package. Not AEC-Q100 qualified - the PIC24EP family is targeted at industrial/consumer motor control rather than automotive under-hood. Extended -40C to +125C temperature grade makes it suitable for many industrial applications.
