DSPIC33CK256MP206-I/MR - 100MHz 16-bit DSC 256KB Flash | Microchip
MPN: DSPIC33CK256MP206-I/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.9 | $5.90 |
| 10 | $5.31 | $53.10 |
| 100 | $4.72 | $472.00 |
| 500 | $4.24 | $2,120.00 |
| 1,000 | $3.85 | $3,850.00 |
DSPIC33CK256MP206-I/MR Overview
A digital signal controller combines the deterministic interrupt latency and peripherals of a microcontroller (MCU) with the multiply-accumulate (MAC) math engine of a digital signal processor (DSP). Within the power-management hierarchy of embedded systems, the dsPIC33CK family sits between general-purpose MCUs and dedicated DSPs, making it a workhorse for closed-loop control loops executed at tens to hundreds of kHz.
Key features include the single-supply 3.0V to 3.6V 100 MHz DSP engine with DSP instruction support, three on-chip operational amplifiers and three analog comparators for embedded current sensing, a Peripheral Trigger Generator (PTG) for hardware-sequenced autonomous operation, and high-resolution PWM outputs with 250 ps effective resolution for power conversion stages.
The dsPIC33CK architecture pairs the CPU with CAN Flexible Data-rate (CAN FD), multiple UART, SPI and I2C modules, and 12-bit ADCs capable of sampling up to 3.5 Msps, allowing one device to close current, voltage and speed loops simultaneously. The three integrated op-amps can be used as internal current-sense amplifiers, reducing bill-of-material cost in motor drives.
Typical applications include digital power supplies (LLC, totem-pole PFC), brushless DC and PMSM motor control, solar micro-inverters, and industrial sensing nodes with CAN FD connectivity.
Design consideration: the 100 MHz core requires a stable 3.3V rail and careful VDD/VSS decoupling; place a 0.1 uF ceramic capacitor at every VDD pin. Code can be developed in MPLAB X IDE with free XC16 compiler and the MPLAB Code Configurator.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK256MP206-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 DSPIC33CK256MP206-I/MR (same form factor and footprint) — differing in Package, PWM, CAN, Core, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK256MP206-E/MR
✅ Drop-In✓ In Stock
$2.52 / Unit
View Datasheet →DSPIC33CK128MP206-I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.23 / Unit
View Datasheet →DSPIC33CK064MP206-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK032MP206-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK256MP506-I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.3 / Unit
View Datasheet →DSPIC33CK256MP206-I/MR Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC |
| CPU Speed | 100 MHz |
| Flash Program Memory | 256 KB (256K x 8) |
| RAM | 24 KB |
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 64-QFN (9x9 mm) |
| Mounting Type | Surface Mount |
| On-chip Op-Amps | 3 |
| Comparators | 3 |
| PWM | High-Resolution PWM, 250 ps resolution |
| CAN | CAN Flexible Data (CAN FD) |
| Special Peripherals | Peripheral Trigger Generator (PTG) |
| Product Family | dsPIC33CK (Functional Safety FuSa capable) |
| RoHS Status | Compliant |
DSPIC33CK256MP206-I/MR 64-qfn (9x9 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK256MP206-I/MR (64-qfn (9x9 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33CK256MP206-I/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK256MP206-I/MR is suitable for 6 applications: Digital Power Supplies (LLC / Totem-Pole PFC), Brushless DC and PMSM Motor Control, Solar Micro-Inverters and Renewable Energy Converters, Industrial Sensing Nodes with CAN FD Connectivity, Servo Drives and Robotics Motion Control, Battery Management and Charging Systems.
Digital Power Supplies (LLC / Totem-Pole PFC)
The DSPIC33CK256MP206-I/MR fits digital power conversion because its high-resolution PWM delivers 250 ps effective resolution, enabling precise dead-time and duty-cycle control in LLC resonant converters and totem-pole PFC stages switching at 100 kHz or higher. The 100 MHz DSP core closes current and voltage loops with deterministic latency, while the Peripheral Trigger Generator (PTG) ties ADC sampling directly to PWM events, eliminating software jitter from the control loop. Deployed between the feedback dividers and gate drivers, the three integrated op-amps amplify shunt-current signals internally, removing external amplifier ICs and their offset errors. The trade-off versus a dedicated digital-power ASIC is flexibility: control laws can be retuned in firmware for wide-range input designs.
Recommended
Brushless DC and PMSM Motor Control
Field-oriented control (FOC) of BLDC and PMSM motors is a primary application for the DSPIC33CK256MP206-I/MR. The 100 MHz core executes single-shunt or three-shunt FOC algorithms with headroom for sensorless observers, while the three on-chip operational amplifiers and three comparators form the complete in-line current-sensing chain inside one device - a measurable BOM reduction versus discrete amplifier solutions. The high-resolution PWM (250 ps) minimizes current ripple and audible noise by reducing dead-time distortion, and the Peripheral Trigger Generator sequences phase-current sampling at the exact center of PWM pulses. CAN FD connectivity integrates the drive into industrial fieldbus networks. Typical designs pair the DSC with a three-phase gate driver and an in-circuit debugger for MotorBench tuning.
Recommended
Solar Micro-Inverters and Renewable Energy Converters
Grid-tied micro-inverters demand MPPT algorithms, dual control loops, and safety interlocks simultaneously - a workload matched to the DSPIC33CK256MP206-I/MR's 100 MHz DSP engine and 256 KB Flash, which store MPPT, inverter control, and grid-compliance firmware together. The high-resolution PWM drives the interleaved boost and DC-AC stages with 250 ps resolution, while the integrated comparators provide hardware overcurrent protection with microsecond response independent of CPU load. The PTG autonomously triggers ADC conversions synchronized to both power stages. The industrial -40C to +85C rating suits rooftop and outdoor enclosure environments, and CAN FD or UART links report performance data to supervisory energy-management systems without adding external controllers.
Recommended
Industrial Sensing Nodes with CAN FD Connectivity
The DSPIC33CK256MP206-I/MR serves as the processing core of industrial sensing and control nodes where CAN FD is the backbone network. The integrated CAN FD module supports 64-byte payloads and data-phase bit rates several times classic CAN, allowing the node to stream sensor data without an external CAN controller. Its 12-bit ADCs sample analog sensors, the three op-amps condition low-level signals such as pressure or current transducer outputs, and the 24 KB RAM buffers FIFO data during bus bursts. The Peripheral Trigger Generator offloads periodic sampling from the CPU. The Functional Safety (FuSa) capability of the dsPIC33CK family supports deployment in safety-relevant industrial equipment with supporting documentation from Microchip.
Recommended
Servo Drives and Robotics Motion Control
Robotics servo drives require fast, coordinated current, velocity, and position loops - exactly the nested-loop structure the DSPIC33CK256MP206-I/MR executes on its 100 MHz 16-bit DSP core with hardware MAC instructions. The three op-amps amplify motor-phase currents internally, the high-resolution PWM keeps dead-time distortion low for smooth low-speed torque, and integrated comparators implement cycle-by-cycle current limiting in hardware. Quadrature encoder or hall interfaces time-stamp position feedback against PWM periods for accurate speed estimation. With 256 KB Flash, full FOC plus trajectory planning and fieldbus firmware coexist on one chip. The 64-QFN 9x9 mm package provides 54 I/O pins, enough to drive multiple encoder and limit-switch channels directly.
Recommended
Battery Management and Charging Systems
In battery chargers and battery-management systems, the DSPIC33CK256MP206-I/MR supervises charging profiles, cell balancing, and protection in one 64-pin device. Its high-resolution PWM implements synchronous buck-boost charge converters with 250 ps resolution for tight current regulation, while the integrated comparators trip hardware fault cutoffs within microseconds if current or voltage limits are exceeded. The ADCs, front-ended by the on-chip op-amps, monitor cell voltages and pack current; the Peripheral Trigger Generator enforces periodic sampling that never drifts with CPU load. CAN FD reports state-of-charge telemetry to vehicle or storage-system controllers. The -40C to +85C industrial grade and RoHS compliance suit automotive-adjacent and stationary storage environments.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK256MP206-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK256MP206-E/MR | DSPIC33CK128MP206-I/MR | DSPIC33CK064MP206-I/MR | DSPIC33CK032MP206-I/MR | DSPIC33CK256MP506-I/MR |
|---|---|---|---|---|---|---|
| Package | 64-QFN (9x9 mm) | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB | 256 KB | 128 KB | 64 KB | 32 KB | 256 KB |
| CPU Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| On-chip Op-Amps | 3 | 3 | 3 | 3 | 3 | 3 |
| CAN FD | Yes | Yes | Yes | Yes | Yes | Yes (additional channels) |
Key Differentiators
- Three integrated op-amps plus three comparators (vs DSPIC33CK256MP506-I/MR)
- Extended temperature option in same footprint (vs DSPIC33CK256MP206-E/MR)
- Flash-size scalability on one footprint (vs DSPIC33CK128MP206-I/MR)
Design Notes
The 64-QFN (9x9 mm) package has a large exposed die-attach pad on the underside that must be soldered to a grounded copper pour. Use an array of thermal vias (typically 5x5, 0.3 mm drill, filled or tented) connecting the pad to internal ground planes; this improves both thermal dissipation at 100 MHz operation and signal-integrity for the return path of the high-resolution PWM outputs. Keep crystal or internal-FPO clock traces short and guard them from PWM switching noise.
Supply the device from a clean 3.3V rail within the 3.0V to 3.6V range. Decouple each VDD pin with 0.1 uF ceramic capacitors placed within 2 mm of the pin, and add 4.7 uF to 10 uF of bulk capacitance near the device. When the integrated op-amps and 12-bit ADCs are used for current sensing, filter the analog supply (ferrite bead plus local decoupling) and set AVDD/AGND planes separate from the noisy digital/PWM domain to preserve ADC accuracy.
Do not assume code portability across flash sizes blindly: firmware developed on the DSPIC33CK256MP206 may exceed 128 KB on the cheaper DSPIC33CK128MP206 drop-in variant - always inspect the XC16 compiler memory map before qualifying a flash-smaller alternative. Also remember that CAN FD requires an external transceiver IC; the DSC provides only the TTL-level CANx pins. Finally, the E-temperature (-E/MR) variant supports +125C operation, but board-level soldering and derating must be re-validated for automotive-adjacent environments.
Compliance Information
RoHS compliant per Microchip product listing for the I-grade industrial part. AEC-Q100 qualification not stated for this part number in the provided data.
