DSPIC33CK256MC102-E/M6 - 16-bit DSC 100MIPS | Microchip
MPN: DSPIC33CK256MC102-E/M6 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.83 | $1.83 |
| 10 | $1.66 | $16.60 |
| 100 | $1.48 | $148.00 |
| 500 | $1.31 | $655.00 |
| 1,000 | $1.16 | $1,160.00 |
DSPIC33CK256MC102-E/M6 Overview
A Digital Signal Controller combines the computational architecture of a digital signal processor - single-cycle multiply-accumulate, DSP instruction set, dual operand fetch - with the peripherals and ease of use of a microcontroller. Within the power-management hierarchy, the dsPIC33CK family sits between general-purpose MCUs and dedicated DSPs, targeting real-time closed-loop control such as Field-Oriented Control (FOC) of motors and digital power conversion.
Key features include deterministic 100 MIPS performance (up to 100 MHz core), 256 KB (256K x 8) Flash and 32 KB (32K x 8) RAM for complex control algorithms, two 12-bit DACs, on-chip operational amplifiers that reduce external BOM cost for current-sense front-ends, and multiple PWM modules suited to power-electronics topologies. DigiKey also lists the device as Functional Safety (FuSa) supported.
Architecturally, the dsPIC33CK core is a pipelined 16-bit CMOS engine with DSP-enhanced instructions, deterministic interrupt latency, and Direct Memory Addressing (DMA) that offloads ADC results and PWM updates from the CPU - critical for keeping loop-update jitter low in FOC and power-factor-correction applications. The 13-channel 12-bit ADC with multiple sample-and-hold units can sample several signals simultaneously for three-phase current sensing.
Typical applications include brushless DC and PMSM motor control, digital SMPS/LLC converters, solar micro-inverters, and high-performance embedded sensing. The integrated op-amps and 12-bit ADC/DAC make it especially cost-effective in compact, analog-intensive control boards.
Design consideration: the device operates from a 3.0 V to 3.6 V supply; provide low-ESR decoupling on each VDD pin and verify flash endurance/writes against the manufacturer datasheet for your end-of-life write budget.
This page synthesizes distributor pricing, drop-in same-package alternatives from the dsPIC33CK family, and practical design notes not consolidated in the manufacturer datasheet. Pricing as of 2026-09-22.
Drop-in alternatives for DSPIC33CK256MC102-E/M6 — 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 DSPIC33CK256MC102-E/M6 (same form factor and footprint) — differing in Core, Package, ADC Resolution, Operating Temperature, PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK256MC102-I/M6
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK128MC102-I/M6
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MC102-I/M6
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.42 / Unit
View Datasheet →DSPIC33CK32MC102-I/M6
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.18 / Unit
View Datasheet →DSPIC33CK256MC202-E/M6
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK256MC102-E/M6 Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC |
| Maximum Speed | 100 MIPS (100 MHz core) |
| Program Memory (Flash) | 256 KB (256K x 8) |
| RAM | 32 KB (32K x 8) |
| Operating Voltage | 3.0 V to 3.6 V |
| I/O Pins | 21 |
| ADC Resolution | 12-bit SAR |
| ADC Channels | 13 |
| DAC | 2 x 12-bit |
| On-chip Op-Amps | Yes |
| PWM | High-resolution PWM modules |
| Package | 28-UQFN (4x4 mm) |
| Operating Temperature | -40C to +125C (E grade) |
| Mounting Type | Surface Mount |
| Functional Safety | FuSa package available per DigiKey listing |
DSPIC33CK256MC102-E/M6 Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0 — Analog input channel 0 / GPIO |
| Pin 3 | AN1 — Analog input channel 1 / GPIO |
| Pin 4 | AN2 — Analog input channel 2 / GPIO |
| Pin 5 | AN3 — Analog input channel 3 / GPIO |
| Pin 6 | AN4 — Analog input channel 4 / GPIO |
| Pin 7 | VDD — Power supply (3.0 V to 3.6 V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI — External crystal oscillator input / clock input |
| Pin 10 | OSC2/CLKO — Crystal oscillator output / clock output |
| Pin 11 | AN5 — Analog input channel 5 / GPIO (remappable peripheral) |
| Pin 12 | AN6 — Analog input channel 6 / GPIO (remappable peripheral) |
| Pin 13 | AN7 — Analog input channel 7 / GPIO (remappable peripheral) |
| Pin 14 | VDD — Power supply (3.0 V to 3.6 V) |
| Pin 15 | VSS — Ground reference |
| Pin 16 | PGD — In-circuit serial programming data / GPIO |
| Pin 17 | PGC — In-circuit serial programming clock / GPIO |
| Pin 18 | GPIO (RPn) — Remappable peripheral pin / GPIO |
| Pin 19 | GPIO (RPn) — Remappable peripheral pin / GPIO |
| Pin 20 | GPIO (RPn) — Remappable peripheral pin / GPIO |
| Pin 21 | OPA0_IN+ — Op-amp 0 non-inverting input / analog / GPIO |
| Pin 22 | OPA0_IN- — Op-amp 0 inverting input / analog / GPIO |
| Pin 23 | OPA0_OUT — Op-amp 0 output / analog / GPIO |
| Pin 24 | DAC1 — 12-bit DAC channel 1 output / GPIO |
| Pin 25 | DAC2 — 12-bit DAC channel 2 output / GPIO |
| Pin 26 | GPIO (RPn) — Remappable peripheral pin / GPIO |
| Pin 27 | VDD — Power supply (3.0 V to 3.6 V) |
| Pin 28 | VSS — Ground reference |
Typical Applications
DSPIC33CK256MC102-E/M6 is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digital Power Conversion (LLC, PFC, Totem-Pole), Solar Micro-Inverters and MPPT, Precision Analog Sensing Front-End, E-bikes, Power Tools, and Light Electric Vehicles, General Embedded DSP and Industrial Automation.
Brushless DC / PMSM Motor Control
The DSPIC33CK256MC102-E/M6 is optimized for Field-Oriented Control (FOC) of BLDC and PMSM motors. Its 100 MIPS dsPIC33CK core executes the Clarke/Park transforms and current-loop PI control deterministically at high PWM frequencies, while the high-resolution PWM modules generate complementary gate-drive signals with dead-time insertion. The 13-channel 12-bit SAR ADC with multiple sample-and-hold units samples phase currents and bus voltage near-simultaneously, and the integrated op-amps amplify shunt-resistor signals, removing external amplifier ICs from the board. In a typical three-phase inverter, the DSC sits between a 3.3 V logic rail and the gate-driver inputs, closing current loops at tens of kHz update rates with DMA moving ADC results without CPU intervention. The 256 KB Flash accommodates full FOC firmware, commutation tables, and a bootloadable field-update partition.
Recommended
Digital Power Conversion (LLC, PFC, Totem-Pole)
For digital switched-mode power supplies - LLC resonant converters, boost PFC stages, and totem-pole bridgeless topologies - the DSPIC33CK256MC102-E/M6 provides the deterministic control bandwidth required. The 100 MIPS core runs voltage- and current-loop compensators at switching frequencies well above 100 kHz, while high-resolution PWM achieves sub-nanosecond effective duty-cycle resolution for frequency- and phase-shift control of resonant stages. The 12-bit ADC monitors input/output voltage and current for cycle-by-cycle protection, and the two 12-bit DACs can generate precise reference ramps. Running from a 3.0-3.6 V supply, the controller interfaces with gate drivers through its 21 remappable I/O pins. The -40C to +125C E-grade rating covers thermally constrained power-supply environments, and DMA offloads sampling so interrupt jitter stays minimal for stable closed-loop behavior.
Recommended
Solar Micro-Inverters and MPPT
Grid-tied micro-inverters require simultaneous maximum-power-point tracking (MPPT) and inverter control, a workload matched to the DSPIC33CK256MC102-E/M6's architecture. The 12-bit 13-channel ADC samples panel voltage/current plus grid feedback signals, the DSP core executes MPPT algorithms (perturb-and-observe or incremental conductance) alongside the inverter current loop at 100 MIPS, and high-resolution PWM synthesizes the switching waveforms for the DC-DC boost and DC-AC stages. The two 12-bit DACs support reference generation for analog protection comparators. The 256 KB Flash holds control firmware plus grid-compliance routines, and the 32 KB RAM supports filtering buffers without external memory. The extended -40C to +125C temperature rating suits rooftop enclosures where ambient temperatures and self-heating combine, ensuring continuous operation without derating the control loop.
Recommended
Precision Analog Sensing Front-End
The DSPIC33CK256MC102-E/M6 consolidates an entire signal chain: on-chip operational amplifiers condition low-level sensor signals, the 13-channel 12-bit SAR ADC digitizes them, and the 100 MIPS DSP engine applies digital filtering - all in a single 4x4 mm UQFN. This makes it attractive for industrial transmitters, weigh scales, and battery-monitoring nodes where board space and BOM count dominate. The two 12-bit DACs can bias sensor bridges or output control setpoints directly. With 21 remappable I/O pins, the device also handles digital interfaces (UART, SPI, I2C) to the system host without a second controller. The -40C to +125C E-grade qualification supports outdoor and under-hood sensing installations, and 256 KB Flash leaves room for calibration tables and self-test diagnostics required in Functional Safety (FuSa) oriented designs.
Recommended
E-bikes, Power Tools, and Light Electric Vehicles
Compact traction applications - e-bike hub motors, cordless power tools, and light electric vehicle auxiliary drives - need high control performance in a small, thermally robust package, which is exactly the DSPIC33CK256MC102-E/M6 profile. The 100 MIPS core runs sensorless or sensored FOC at high loop rates for smooth torque delivery, high-resolution PWM supports 20 kHz+ inverter switching for quiet operation, and the integrated op-amps with the 12-bit ADC form a low-latency current-sense chain from a single low-side shunt per phase. The -40C to +125C E-grade temperature rating tolerates sealed motor-controller enclosures. The 256 KB Flash supports field firmware updates over CAN/UART for fleet maintenance, and the 28-UQFN (4x4 mm) footprint fits densely populated control PCBs stacked next to power stages in handlebar or grip-integrated housings.
Recommended
General Embedded DSP and Industrial Automation
Beyond power electronics, the DSPIC33CK256MC102-E/M6 serves as a general high-performance 16-bit embedded controller: deterministic 100 MIPS execution, hardware DSP instructions for FFT and filtering, and a C-friendly compiler toolchain (MPLAB X + XC16) shorten development time versus configuring a discrete DSP. Typical automation uses include encoder interpolation, vibration analysis, ultrasonic sensing, and intelligent actuator control, where its DMA keeps sampling pipelines running while the CPU processes algorithms. The 21 I/O pins with Peripheral Pin Select let designers route UART/SPI/I2C/PWM to any pin, simplifying PCB layout revisions. FuSa support noted in DigiKey's listing assists functional-safety assessments in industrial equipment. The 32 KB RAM holds sizeable lookup tables and communication stacks, and the -40C to +125C rating covers factory-floor cabinets without forced-air cooling.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK256MC102-E/M6 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK256MC102-I/M6 | DSPIC33CK128MC102-I/M6 | DSPIC33CK64MC102-I/M6 | DSPIC33CK32MC102-I/M6 | DSPIC33CK256MC202-E/M6 |
|---|---|---|---|---|---|---|
| Package | 28-UQFN (4x4 mm) | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MIPS (100 MHz) | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS |
| Flash Memory | 256 KB | 256 KB | 128 KB | 64 KB | 32 KB | 256 KB |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +125C (E grade) |
| ADC | 13-ch 12-bit SAR | 13-ch 12-bit SAR | 12-bit SAR (fewer analog channels) |
Key Differentiators
- Extended -40C to +125C temperature grade (vs DSPIC33CK256MC102-I/M6)
- Maximum 256 KB Flash in the family footprint (vs DSPIC33CK128MC102-I/M6)
- Analog-integrated peripheral mix with on-chip op-amps (vs DSPIC33CK256MC202-E/M6)
Design Notes
Supply the DSPIC33CK256MC102-E/M6 from a clean 3.0-3.6 V rail (3.3 V nominal). Place a 10 uF bulk ceramic plus 0.1 uF ceramic directly at each VDD pin of the 28-UQFN, with the ground return on a solid plane tied to each VSS pin. ADC accuracy and on-chip op-amp performance degrade with supply ripple, so if the 3.3 V rail comes from a buck converter, add an LC filter or ferrite bead before the analog supply connection. Estimated: a 100 MIPS core drawing tens of milliamps plus I/O loads fits comfortably in a typical 150-300 mA LDO budget.
The 28-UQFN (4x4 mm) has a 0.4-0.5 mm pitch land pattern; follow the Microchip layout appnote recommended for UQFN packages. Use the exposed die-attach region for multiple via stitching to the ground plane to lower thermal resistance and improve EMI. Keep the crystal loop (OSC1/OSC2) compact with guard ground, and route ADC/op-amp traces away from PWM outputs and gate-driver lines to prevent switching noise coupling into the 12-bit SAR ADC front-end.
Two frequent mistakes: (1) using the I-grade DSPIC33CK256MC102-I/M6 as a substitute for this E-grade part in enclosures approaching +85C ambient - junction self-heating can push it past the industrial rating; always compute worst-case Tj before substituting. (2) Omitting MCLR pull-up and ICSP programming access - reserve the PGD/PGC pins for in-circuit debugging in the first layout revision. Also verify Peripheral Pin Select mappings early, since remappable pins are constrained per datasheet tables.
Compliance Information
Compliance statuses were not explicitly stated in the retrieved distributor data and must be confirmed on the Microchip product page or distributor certificate of conformity. Microchip general-purpose DSCs are typically RoHS-compliant, but this must be verified per Data Authenticity Rules.
