DSPIC33CK128MC506-I/PT - 16-bit DSC 128KB Flash CAN FD | Microchip
MPN: DSPIC33CK128MC506-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.6 | $4.60 |
| 10 | $4.15 | $41.50 |
| 100 | $3.7 | $370.00 |
| 500 | $3.3 | $1,650.00 |
| 1,000 | $2.95 | $2,950.00 |
DSPIC33CK128MC506-I/PT Overview
A Digital Signal Controller combines the computational capability of a digital signal processor with the peripheral set and ease of use of a microcontroller. Within the embedded control hierarchy, the dsPIC33CK family sits under Microchip's 16-bit DSC line, bridging general-purpose MCUs and dedicated DSPs for deterministic, math-intensive real-time control loops.
Key features include the 100 MHz dsPIC33CK core with DSP instruction support, 128 KB of ECC Flash program memory, and 16 KB RAM for control-loop state. The peripheral complement covers the 12-bit ADC, multiple PWM channels for power conversion, CAN FD for automotive/industrial networking, and integrated op amps that reduce external component count in current-sense paths.
Architecturally, the single-core dsPIC33CK family executes from zero-wait-state Flash with an enhanced DSP engine supporting multiply-accumulate operations, enabling high-bandwidth current loops in field-oriented motor control and digital power supplies. The package is the 64-TQFP (10x10 mm) with industrial temperature rating (-40C to +85C, suffix -I).
Typical applications include brushless DC and PMSM motor drives, digital power supplies (totem-pole PFC, LLC converters), solar micro-inverters, and battery management systems where CAN FD networking, fast ADC sampling and high-resolution PWM converge.
Design consideration: dsPIC33CK parts operate from a 3.0V to 3.6V supply, so plan level shifting for 5V industrial I/O. Multiple PGECx/PGEDx pin pairs support ICSP programming - use any pair, but keep clock and data pairs matched.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK128MC506-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 DSPIC33CK128MC506-I/PT (same form factor and footprint) — differing in Package, Operating Temperature, PWM, ADC Resolution, CAN Interface.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK256MC506-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.04 / Unit
View Datasheet →DSPIC33CK64MC506-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK128MC506-H/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK128MP506-I/PT
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →DSPIC33CK128MC506-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.95 / Unit
View Datasheet →DSPIC33CK128MC506-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC core |
| Core Frequency | 100 MHz |
| Flash Memory | 128 KB |
| RAM | 16 KB |
| Data Bus Width | 16 bit |
| Supply Voltage | 3.0 V to 3.6 V |
| Package | 64-TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C |
| ADC Resolution | 12 bit |
| On-chip Op Amps | Yes |
| PWM | Yes, high-resolution PWM |
| CAN FD | Yes |
| Programming Interface | ICSP (multiple PGECx/PGEDx pairs) |
| RoHS Status | Compliant |
| Product Family | dsPIC33CK MC50x |
DSPIC33CK128MC506-I/PT 64-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK128MC506-I/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 DSPIC33CK128MC506-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK128MC506-I/PT is suitable for 6 applications: BLDC/PMSM Motor Control, Digital Power Supplies, Solar Micro-Inverters, Battery Management Systems, Industrial Automation and Sensing, High-Performance General Embedded Control.
BLDC/PMSM Motor Control
The DSPIC33CK128MC506-I/PT fits field-oriented control (FOC) of brushless DC and PMSM drives because its 100 MHz core executes the current-loop multiply-accumulate workload at the kHz rates FOC demands, while the integrated 12-bit ADC samples phase currents and the integrated op amps buffer shunt signals without external amplifiers. In a typical topology, the DSC reads two phase currents through its op amps and ADC, runs Clarke/Park transforms in the DSP engine, and updates high-resolution PWM duty cycles for a three-phase inverter each cycle. The quantified benefit is single-chip closure of both current and speed loops, cutting BOM count versus a discrete amplifier plus generic MCU design. Multiple PGECx/PGEDx pairs simplify in-circuit programming access on dense power boards.
Recommended
Digital Power Supplies
In digital power conversion - LLC resonant converters, buck stages and PFC front ends - the DSPIC33CK128MC506-I/PT provides the three essentials: fast 12-bit ADC voltage/current feedback, high-resolution PWM with adjustable phase for soft-switching timing, and a 100 MHz core running compensator math. The DSC sits between the sense dividers and gate drivers, closing voltage-mode or current-mode loops digitally at switching frequency. Using the integrated op amps for current-sense amplification removes discrete amplifier stages, and CAN FD enables telemetry and tuning in rack power systems. The trade-off versus analog control is firmware development effort, but the gain is adaptive compensation across load range. For the most demanding totem-pole PFC designs with ADC crossbar needs, Microchip's sister DSPIC33CK128MP506 is the family alternative.
Recommended
Solar Micro-Inverters
Solar micro-inverters combine MPPT control, grid-synchronous current shaping and safety monitoring - a workload the DSPIC33CK128MC506-I/PT handles in one chip. The 100 MHz core runs the MPPT search and the sine-reference current loop simultaneously; the 12-bit ADC multiplexes panel voltage/current and grid sense inputs; and high-resolution PWM drives the interleaved boost and DC-AC stages. The integrated op amps condition low-side shunt measurements, saving board area where every millimeter of passive component space is costly in sealed outdoor enclosures. The industrial -40C to +85C rating covers rooftop thermal extremes, and the 64-TQFP 10x10 mm footprint suits the compact layout micro-inverters require. CAN FD is available where module-level networking is specified, though many designs use simpler PLC or RS-485 paths.
Recommended
Battery Management Systems
Battery management systems for industrial and light-mobility packs need cell monitoring, state-of-charge estimation math, and pack-level communication - all served by the DSPIC33CK128MC506-I/PT. Its 16 KB RAM and DSP engine handle coulomb counting and filtering, the 12-bit ADC plus integrated op amps measure pack current through a shunt, and CAN FD provides the standard automotive/industrial BMS network link natively, without an external CAN controller. The 100 MHz core leaves margin for Kalman-filter-type SOC estimators that lower-end MCUs cannot sustain. The industrial temperature rating suits under-hood-adjacent and outdoor environments, and the AEC-Q100 -H/PT variant is available when full automotive qualification is required. Multiple ICSP pin pairs ease programming connector placement on packed BMS boards.
Recommended
Industrial Automation and Sensing
General industrial nodes - actuators, smart sensors, servo accessories - benefit from the DSPIC33CK128MC506-I/PT's balance of DSP throughput and MCU-style peripherals. The 100 MHz core runs control algorithms and communications concurrently; UART/SPI/I2C handle sensor interfaces while CAN FD links the node to factory networks; the 12-bit ADC digitizes analog transducer signals, with integrated op amps buffering weak sensor outputs. The 64-pin TQFP exposes enough GPIO to drive HMI elements or relay banks directly. The -40C to +85C industrial rating and RoHS-compliant package meet factory-floor environmental and compliance requirements. Compared to a generic MCU plus external DSP, this single-chip approach reduces design effort, firmware complexity and BOM cost while retaining headroom for future feature updates in Flash.
Recommended
High-Performance General Embedded Control
For demanding general-purpose embedded products - test fixtures, printers, HVAC compressors, pumping stations - the DSPIC33CK128MC506-I/PT acts as a high-performance 16-bit MCU when full DSP capability is not the primary need. The 100 MHz core provides fast interrupt latency and arithmetic for responsive control, 128 KB Flash hosts feature-rich firmware with OTA headroom, and the peripheral set (12-bit ADC, PWM, CAN FD, op amps) covers mixed analog/digital designs without companion chips. The 64-TQFP 10x10 mm package balances GPIO count against hand-assembly feasibility for prototyping. Choosing this DSC over a plain MCU is justified when math load may grow over the product lifecycle; the same-family density options (64 KB or 256 KB Flash) let you right-size memory without PCB redesign.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK128MC506-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK256MC506-I/PT | DSPIC33CK64MC506-I/PT | DSPIC33CK128MC506-H/PT | DSPIC33CK128MP506-I/PT |
|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | PQFP64 - same footprint | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 256 KB | 64 KB | 128 KB | 128 KB |
| Core Frequency | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| CAN FD | Yes | Yes | Yes | Yes | Yes |
| Target Focus | Motor control / general | Motor control / general, more Flash | Cost-optimized motor control | Automotive (AEC-Q100) | Digital power (enhanced PWM/ADC) |
| Automotive Grade (AEC-Q100) | No (industrial -I grade) | No (industrial) | No (industrial) | Yes (AEC-Q100, -H grade) | No (industrial) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | Extended -H grade (per Microchip USA, up to +150C capability) | -40C to +85C |
Key Differentiators
- Right-sized 128 KB Flash at lower cost (vs DSPIC33CK256MC506-I/PT)
- Automotive upgrade available without redesign (vs DSPIC33CK128MC506-H/PT)
- Motor-control peripheral balance over digital-power focus (vs DSPIC33CK128MP506-I/PT)
Design Notes
The dsPIC33CK core requires a 3.0V to 3.6V supply with nominal 3.3V operation. Provide independent, well-decoupled 3.3V rails for VDD and the internal regulator input, with 0.1uF ceramics at each VDD/VSS pair plus bulk 10uF near the package. If the system rail is 5V, add a low-noise buck or LDO; avoid sharing the DSC rail with high-dv/dt motor driver loads, since ADC accuracy depends directly on VDD noise.
Place the 64-TQFP with analog pins (op amp inputs, ADC channels) routed away from PWM gate-driver traces. Use a solid ground plane under the chip and star-connect VSS. Keep ICSP (PGECx/PGEDx) header traces short and remember clock/data must come from the same pair - for example PGEC2/PGED2 - per the family programming specification. Expose the selected pair on a 5-pin header during layout; retrofitting ICSP access on assembled boards is costly.
The DSPIC33CK128MC506 is not AEC-Q100 qualified - the -I suffix covers industrial -40C to +85C only; select the DSPIC33CK128MC506-H/PT for automotive builds. Also, density variants (64/128/256 KB) share the same pinout but not the same Flash map, so linker scripts and bootloader offsets must be updated when swapping. Finally, the family naming is easy to confuse with the digital-power MP506 variant; verify the exact peripheral set against the correct datasheet before finalizing the schematic.
Compliance Information
RoHS compliant and lead-free per DigiKey/Mouser listings. Standard -I variant is not AEC-Q100 qualified; use DSPIC33CK128MC506-H/PT for automotive. REACH, halogen-free and conflict-minerals status not stated in the collected distributor data.