DSPIC33CK256MP608-I/PT - 100MHz DSC, 256KB Flash, CAN FD | Microchip
MPN: DSPIC33CK256MP608-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.97 | $1.97 |
| 10 | $1.87 | $18.70 |
| 100 | $1.77 | $177.00 |
| 500 | $1.68 | $840.00 |
| 1,000 | $1.57 | $1,570.00 |
DSPIC33CK256MP608-I/PT Overview
A digital signal controller combines the compute architecture of a digital signal processor (DSP) with the peripheral integration and deterministic control flow of a microcontroller (MCU). DSCs sit within the broader power management and embedded control hierarchy, bridging general-purpose MCUs and full DSPs for real-time closed-loop applications such as motor control and digital power conversion.
Key features of the dsPIC33CK256MP608 include the dsPIC33C 100 MHz core with DSP-enhanced instruction execution, dual-panel flash that allows program execution from one panel while erasing or writing the other, and an integrated Controller Area Network Flexible Data-rate (CAN FD) module. Analog integration includes on-chip operational amplifiers and 12-bit ADCs, while the high-resolution PWM peripherals target switch-mode power conversion and precise motor phase driving.
Technically, the dsPIC33CK core executes most instructions in a single cycle at 100 MHz, and the dual-panel flash architecture removes flash erase stalls from real-time control loops - a key advantage over single-panel MCUs in current-loop applications running at tens to hundreds of kHz. The peripheral ecosystem (PWM, ADC, op-amps, comparators) can be interconnected for autonomous operation with reduced CPU intervention.
Typical applications include precision PMSM and BLDC motor control, digital power supplies and totem-pole PFC stages, solar micro-inverters, and battery chargers - all systems where CAN FD connectivity, fast 12-bit ADC sampling, and deterministic PWM control are decisive.
Design consideration: the I-suffix part is rated to +85C ambient; for extended-temperature systems to +125C, select the E-suffix variant. Verify startup configuration (FICD/oscillator fuses) when migrating within the family.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK256MP608-I/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 DSPIC33CK256MP608-I/PT (same form factor and footprint) — differing in Package, Core, Supply Voltage, Operating Temperature, ADC Resolution.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK512MP608-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.12 / Unit
View Datasheet →DSPIC33CK128MP608-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK256MP608-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.25 / Unit
View Datasheet →DSPIC33CK256MP608-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC core |
| Core Speed | 100 MHz |
| Flash Memory | 256 KB (dual panel) |
| RAM | 64 KB |
| Data Bus Width | 16 bit |
| Supply Voltage | 3.6 V (max operating) |
| CAN Interface | CAN FD |
| Analog Peripherals | Integrated op-amps, 12-bit ADCs |
| PWM Peripherals | High-resolution PWM |
| Package | 80-TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Product Family | dsPIC33C digital signal controllers |
| Debug Support | 8 hardware breakpoints (per tool vendor) |
| Programming | ICSP (In-Circuit Serial Programming) |
DSPIC33CK256MP608-I/PT 80-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK256MP608-I/PT (80-tqfp (12x12 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 DSPIC33CK256MP608-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK256MP608-I/PT is suitable for 6 applications: Precision PMSM/BLDC Motor Control, Digital Power Supplies and Totem-Pole PFC, Solar Micro-Inverters, Battery Chargers and BMS Nodes, Industrial Automation and Sensing Nodes, Automotive-Adjacent Control Modules.
Precision PMSM/BLDC Motor Control
The dsPIC33CK256MP608 is purpose-built for field-oriented control (FOC) of PMSM and BLDC motors. Its 100 MHz single-cycle DSP core executes current-loop math with deterministic latency, while the dual-panel 256 KB flash eliminates erase/write stalls inside 20-100 kHz control loops. High-resolution PWM outputs drive three-phase inverters with fine duty resolution, and on-chip 12-bit ADCs sample phase currents synchronized to PWM triggers, minimizing measurement jitter. Integrated op-amps can amplify shunt currents on-chip, removing external amplifier stages. The CAN FD module links the drive into industrial or automotive networks for command and diagnostics. Performance consideration: budget CPU cycles for the fast inner current loop; peripheral interconnection can offload ADC-to-PWM housekeeping from software.
Recommended
Digital Power Supplies and Totem-Pole PFC
In digitally controlled power supplies, LLC converters, and totem-pole PFC stages, the dsPIC33CK256MP608 provides the high-resolution PWM edges and fast 12-bit ADC sampling needed for peak-current-mode and voltage-mode control at switching frequencies of 100 kHz and above. The 100 MHz core sustains control-law computation with headroom, while dual-panel flash permits field firmware updates (such as compensation retuning) without interrupting the running converter. On-chip comparators and op-amps support autonomous cycle-by-cycle current limiting independent of software latency. Design consideration: configure the ADC to sample synchronized to PWM off-times to avoid switching-noise corruption; the peripheral trigger system makes this deterministic without CPU intervention, which improves THD in PFC front ends.
Recommended
Solar Micro-Inverters
Solar micro-inverters demand simultaneous MPPT computation, grid-synchronized current injection, and safety monitoring - a workload the dsPIC33CK256MP608 handles with its 100 MHz DSP core and rich analog front end. The 12-bit ADCs sample PV voltage/current and grid waveforms; high-resolution PWM synthesizes the sinusoidal output through the power stage. The 256 KB dual-panel flash accommodates MPPT algorithms, grid-compliance code, and communication stacks, and supports firmware field updates without dropping energy harvest. Consideration: grid codes require rapid anti-islanding response; the deterministic single-cycle core and hardware comparators help meet mandated trip times without relying solely on software polling loops.
Recommended
Battery Chargers and BMS Nodes
Battery charging topologies (CC/CV Li-ion, multi-chemistry) benefit from the dsPIC33CK256MP608's combination of accurate 12-bit ADC channels for voltage/current/temperature telemetry and high-resolution PWM for switch-mode charger control. The CAN FD module is decisive in pack-level and vehicle battery systems, where pack telemetry, cell balancing commands, and fault signaling traverse the same bus at data rates beyond classical CAN. Dual-panel flash enables charge-profile updates in the field. Design consideration: sample battery current during PWM off-phases to avoid switching transients; the ADC-PWM trigger interconnect performs this automatically, improving coulomb-counting accuracy across wide load ranges.
Recommended
Industrial Automation and Sensing Nodes
Within Industry 4.0 networks, the dsPIC33CK256MP608 serves as an intelligent node combining local real-time actuation (via high-resolution PWM and on-chip op-amps driving actuators or valves) with CAN FD connectivity back to PLCs and SCADA systems. The 100 MHz DSP core can perform local signal processing - vibration spectral analysis, sensor fusion, or digital filtering - before transmission, reducing bus traffic. The 64 KB RAM supports buffering of multiple sensor streams. Consideration: the peripheral pin select (PPS) system allows routing UART/SPI/I2C functions to flexible pins, simplifying multi-variant industrial boards built on one PCB footprint.
Recommended
Automotive-Adjacent Control Modules
For auxiliary automotive systems - pumps, fans, valves, lighting controllers - the dsPIC33CK256MP608 provides deterministic motor or power control with a CAN FD interface compatible with in-vehicle networks. Its -40C to +85C industrial grade suits under-cabin environments; for under-hood exposure choose the pin-compatible E-grade variant rated to +125C. Integrated op-amps reduce BOM for current sensing in DC motor drives. Design consideration: use the E-suffix part (DSPIC33CK256MP608-E/PT) where ambient exceeds 85C, and apply proper AEC-grade qualification practices for components around the DSC since this standard part is not itself AEC-Q100 qualified.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK256MP608-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK512MP608-I/PT | DSPIC33CK128MP608-I/PT | DSPIC33CK256MP608-E/PT |
|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB (dual panel) | 512 KB (dual panel) | 128 KB (dual panel) | 256 KB (dual panel) |
| RAM | 64 KB | 64 KB | 64 KB | 64 KB |
| Core Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C |
| CAN FD | Yes | Yes | Yes | Yes |
Key Differentiators
- Best flash-per-dollar for code bases under 256 KB (vs DSPIC33CK512MP608-I/PT)
- Extended temperature capability in the same footprint (vs DSPIC33CK256MP608-E/PT)
- More code headroom than the entry variant (vs DSPIC33CK128MP608-I/PT)
Design Notes
The dsPIC33CK256MP608 operates from a nominal 3.3 V rail (3.6 V maximum). Decouple each VDD pin pair with 0.1 uF ceramics placed within 2 mm of the pins, plus one bulk 10 uF per power domain. Use a clean analog supply (ferrite or LDO isolation from the digital rail) for AVDD to preserve 12-bit ADC accuracy; noisy AVDD directly degrades effective number of bits in current-loop sampling.
The 80-TQFP (12x12 mm, 0.5 mm pitch) requires careful fan-out of high-current PWM traces to the inverter gate drivers. Keep PWM gate-drive traces short and away from analog sense lines to prevent capacitive coupling of switching edges into ADC inputs. Use a solid ground plane with return paths under the DSC; avoid splitting ground under the analog section. Provide programming/debug access to PGC/PGD (ICSP) on a header even in production boards.
Migrating within the dsPIC33CK family requires updating the device selection and linker scripts in MPLAB X - peripherals share the same register map, but flash sizes differ (128/256/512 KB). Note that the I-suffix is rated only to +85C; under-hood designs need the E-suffix. Also, once ICSP writes are inhibited by configuration, the device cannot be reprogrammed - test this workflow only on development units.
Compliance Information
Compliance data not present in provided web data; verify RoHS/REACH status on the official Microchip product page before procurement. Not an automotive AEC-Q100 part per family positioning.
