DSPIC33CK256MP506-E/PT - 100MHz 16-bit DSC 256KB CAN-FD | Microchip
MPN: DSPIC33CK256MP506-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.9 | $6.90 |
| 10 | $6.21 | $62.10 |
| 100 | $5.52 | $552.00 |
| 500 | $4.83 | $2,415.00 |
| 1,000 | $4.28 | $4,280.00 |
DSPIC33CK256MP506-E/PT Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and deterministic control of a microcontroller, sitting in the product hierarchy between a general-purpose MCU and a standalone DSP. DSCs are the backbone of digitally controlled power conversion, where a fast control loop must execute compensator math every few microseconds.
Key features of this part include the 100 MIPS dsPIC33CK core with DSP engine and barrel shifter, a High-Resolution PWM (HRPWM) capable of fine pulse-width granularity for precision power stages, and CAN Flexible Data (CAN FD) for automotive and industrial networking. It also integrates three analog op-amps and three comparators, enabling on-chip signal conditioning for current-sense loops without external amplifiers.
Technical depth: the device provides nine MCCP/SCCP modules (one MCCP, eight SCCPs) supporting 16/32-bit timer, capture/compare and PWM functions, a Peripheral Trigger Generator (PTG) with up to 15 trigger sources driving a CPU-independent state machine, and 4 DMA channels for low-overhead data movement. The dsPIC33CK256MP506 family data sheet (DS70005349) documents these peripherals for the 28/36/48/64/80-pin members.
Typical applications include digital power supplies (LLC, totem-pole PFC), brushless and PMSM motor control with field-oriented control, and advanced sensing systems where CAN FD connectivity and fast analog peripherals converge.
Design consideration: use the extended-temperature -E variant only within its rated envelope, and budget ADC/op-amp sharing carefully when three current loops are sampled in one PWM cycle.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK256MP506-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 DSPIC33CK256MP506-E/PT (same form factor and footprint) — differing in Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK256MP506-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.77 / Unit
View Datasheet →DSPIC33CK128MP506-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MP506-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CH256MP506-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK256MP505-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK256MP506-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC |
| Core Speed | 100 MHz |
| Program Memory (FLASH) | 256 KB (256K x 8) |
| RAM | 24 KB |
| Package | 64-TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Terminal Pitch | 0.5 mm |
| On-chip Op-Amps | 3 |
| On-chip Comparators | 3 |
| CAN FD | Yes (CAN Flexible Data) |
| MCCP/SCCP Modules | 9 (1 MCCP, 8 SCCP) |
| DMA Channels | 4 |
| Peripheral Trigger Generator | Yes, up to 15 trigger sources |
| High-Resolution PWM | Yes |
| Operating Temperature | -40C to +125C (E extended temp) |
| Technology | CMOS |
| RoHS Status | Compliant |
DSPIC33CK256MP506-E/PT 64-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK256MP506-E/PT (64-tqfp (10x10 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 DSPIC33CK256MP506-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK256MP506-E/PT is suitable for 6 applications: Digital Power Conversion, Motor Control (FOC), CAN FD Industrial Networking Nodes, Advanced Sensing and Control Systems, LED Lighting and Electronic Ballasts, Automotive-Adjacent Control Units.
Digital Power Conversion
The DSPIC33CK256MP506-E/PT is purpose-built for digital power supplies such as LLC resonant converters, totem-pole PFC, and bidirectional DC-DC stages. Its High-Resolution PWM delivers fine duty-cycle granularity so compensator output changes translate into precise pulse-width commands, while the nine MCCP/SCCP modules provide complementary outputs with hardware dead-time insertion. The three on-chip op-amps amplify current-shunt signals and the three comparators enable cycle-by-cycle overcurrent limiting without external analog chips. In a typical topology, the PTG sequences ADC sampling synchronously to the PWM period, and the 100 MHz DSP core executes the control-law arithmetic, closing current loops within a single switching period at 100+ kHz switching frequencies.
Recommended
Motor Control (FOC)
For brushless DC, PMSM, and AC induction motor drives, the DSPIC33CK256MP506-E/PT executes field-oriented control at loop rates up to tens of kilohertz thanks to its 100 MIPS DSP engine with single-cycle MAC and barrel shifter. The integrated op-amps condition low-side current-shunt signals directly, and the comparators support hardware overcurrent trip. The HRPWM generates three-phase complementary gate commands with fine resolution for low-torque-ripple sinusoidal drive. The 64-pin package supplies ample I/O for encoder/Resolver interfaces, gate-driver PWM, brake, and fault inputs. The E-grade temperature rating (-40C to +125C) suits motor-drive encoders mounted near heat-generating power stages in industrial machinery and e-mobility equipment.
Recommended
CAN FD Industrial Networking Nodes
The integrated CAN Flexible Data (CAN FD) module makes this DSC a strong fit for industrial automation nodes and vehicle-adjacent controllers that must exchange larger payloads at higher data rates than classical CAN. CAN FD supports data-phase bitrates well beyond classical CAN's limits, reducing bus latency for time-critical control messages. Combined with the 100 MHz core, the device can run the application control loop and the full network stack concurrently. Typical nodes include servo-drive gateways, battery management units, and sensor aggregation in factory automation. The four DMA channels offload CAN message and ADC data transfers, keeping CPU cycles focused on control and protocol handling rather than data movement.
Recommended
Advanced Sensing and Control Systems
The DSPIC33CK256MP506-E/PT serves advanced sensing platforms where fast analog acquisition and deterministic processing converge. The multiple ADC inputs paired with on-chip op-amps allow direct connection of low-level sensor signals, while the PTG state machine triggers conversions and peripheral actions CPU-independently with up to 15 trigger sources, ensuring jitter-free sampling sequences. Applications include power-quality analyzers, precision instrumentation front-ends, and condition-monitoring systems. The 24KB RAM buffers waveform captures, and 4 DMA channels stream data to memory without core intervention. The extended -40C to +125C operating range permits deployment in outdoor enclosures and industrial cabinets where ambient temperatures routinely exceed standard industrial ratings.
Recommended
LED Lighting and Electronic Ballasts
Digital LED drivers and HID/electronic ballast designs benefit from the DSPIC33CK256MP506-E/PT's combination of HRPWM, comparators, and fast control bandwidth. The HRPWM enables high-frequency dimming control with precise duty and phase resolution for multi-string LED drivers, while the comparators provide fast fault protection against overcurrent and open-string conditions. Power-factor-corrected front ends can share the same controller, consolidating PFC and driver stages into one DSC. The 64-pin package provides enough I/O for multiple PWM channels, dimming interfaces (DALI/0-10 V via GPIO or CAN FD), and telemetry. The extended temperature grade supports luminaires and drivers in enclosed, high-ambient fixtures.
Recommended
Automotive-Adjacent Control Units
While this commercial-grade MPN is not AEC-Q100 qualified, its CAN FD interface, -40C to +125C extended range, and rich PWM/peripheral set make it suitable for automotive-adjacent and industrial-vehicle systems such as auxiliary pump controllers, HVAC blowers, on-board charger communication gateways, and off-highway equipment subsystems. CAN FD interoperates with vehicle networks at modern data rates, and the DSP core handles sensor fusion and control-loop duties. For production automotive programs requiring AEC-Q100 qualification, select the appropriate qualified dsPIC33 variant; for industrial vehicles, machinery, and non-safety applications at extended temperatures, this E-grade device offers automotive-like capability at commercial pricing.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK256MP506-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK256MP506-I/PT | DSPIC33CK128MP506-E/PT | DSPIC33CK64MP506-I/PT | DSPIC33CH256MP506-E/PT | DSPIC33CK256MP505-I/PT |
|---|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MIPS master + 90 MIPS slave (dual core) | 100 MHz |
| FLASH Memory | 256 KB | 256 KB | 128 KB | 64 KB | 256 KB | 256 KB |
| 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 +85C (I grade) |
| CAN FD | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Extended temperature range for harsh environments (vs DSPIC33CK256MP506-I/PT)
- Double the program memory at the same footprint (vs DSPIC33CK128MP506-E/PT)
- Single-core simplicity and lower cost than dual-core CH family (vs DSPIC33CH256MP506-E/PT)
- Full I/O and peripheral allocation of the 64-pin family (vs DSPIC33CK256MP505-I/PT)
Design Notes
The 64-TQFP uses a 0.5 mm terminal pitch, so specify a solder-mask-defined pad geometry per IPC-compatible land-pattern tools and inspect with 5x minimum magnification. Place a 100 nF ceramic decoupling capacitor within 2 mm of each VDD pin pair, plus one 10 uF bulk capacitor near the package. Route the AVDD supply through an RC filter (ferrite bead plus 10 uF) from the digital rail to preserve ADC and op-amp accuracy; tie VSS/AVSS at a single star point under the package. Pin 1 is marked by a dot on the package top; orient the footprint accordingly to avoid 90-degree misplacement during assembly.
The dsPIC33CK core operates from a nominal 3.3 V supply. Estimated core current scales roughly linearly with clock frequency - at the full 100 MHz with peripherals active, budget several tens of milliamps plus I/O load (verify exact figures in datasheet DS70005349 electrical characteristics). When switching from the -I to the -E extended-temperature grade, re-check supply-current curves at +125C since leakage and dynamic current rise with temperature; size the 3.3 V regulator with margin. For noisy power-stage environments, a small LC filter on AVDD improves ADC effective-number-of-bits and op-amp offset performance measurably.
A common pitfall is assuming temperature-grade variants are fully interchangeable: the -I grade is limited to +85C ambient while the -E grade reaches +125C, and using an -I part in an E-grade socket causes field failures. Second, the dsPIC33CK family uses a different programming/executive interface and register map from the older dsPIC33EP generation - dsPIC33EP256GP506 firmware will not port without changes, so treat it as a redesign, not a drop-in. Third, when multiple op-amps feed ADC channels, configure the ADC scan and PTG triggers carefully to prevent channel contention; simulate the trigger map in MPLAB X before hardware bring-up.
Compliance Information
RoHS compliant and lead-free per distributor listings (DigiKey/Mouser). This commercial/extended-temperature grade is not AEC-Q100 qualified; consult Microchip for automotive-qualified dsPIC33 variants. REACH and halogen-free status not stated in retrieved data.
