DSPIC33CK128MP208T-I/PT - 100MHz 16-Bit DSC 128KB Flash | Microchip
MPN: DSPIC33CK128MP208T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.6 | $5.60 |
| 10 | $5.05 | $50.50 |
| 100 | $4.55 | $455.00 |
| 500 | $4.15 | $2,075.00 |
| 1,000 | $3.75 | $3,750.00 |
DSPIC33CK128MP208T-I/PT Overview
A digital signal controller combines the computational power of a digital signal processor with the control peripherals and architecture of a microcontroller. In the power-management hierarchy, the dsPIC33CK family sits between general-purpose MCUs and dedicated DSPs, making it the single-chip controller of choice for closed-loop digital power conversion and precision motor control where fast interrupt latency and deterministic execution are required.
Key features include the 100 MHz dsPIC DSC core with integrated DSP engine and single-cycle MAC, High-Resolution PWM (HRPWM) outputs for sub-nanosecond power-conversion resolution, and CAN Flexible Data (CAN FD) connectivity. Mouser lists 3 integrated operational amplifiers and 3 comparators on-chip, offloading external analog signal-conditioning components in current-sense and feedback loops. The device also includes a Programmable Time Generator (PTG) for autonomous sequencing.
Architecturally, the dsPIC33CK single-core family uses an enhanced Harvard architecture with a 16-bit datapath, DSP multiply-accumulate instructions, and functional-safety (FuSa) support per Microchip documentation, targeting safety-relevant industrial and automotive designs. The I-temperature grade covers -40C to +85C operation.
Typical applications include digital switched-mode power supplies (AC/DC, DC/DC), sensorless brushless DC and PMSM motor drives, automotive and industrial CAN FD nodes, and advanced sensing/control systems that benefit from the DSP engine and high-resolution PWM.
Design consideration: budget the 16KB RAM carefully in DSP-heavy firmware, and verify CAN FD bit-timing and HRPWM clock configuration against the manufacturer datasheet during board bring-up.
This page synthesizes distributor data, family drop-in options, and design guidance not found on the manufacturer product page alone.
Drop-in alternatives for DSPIC33CK128MP208T-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 DSPIC33CK128MP208T-I/PT (same form factor and footprint) — differing in Core, Package, Operating Temperature, Architecture, Data SRAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK128MP208-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.58 / Unit
View Datasheet →DSPIC33CK64MP208-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
Contact for price
View Datasheet →DSPIC33CK256MP208-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2 / Unit
View Datasheet →DSPIC33CK32MP208-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK128MP205-E/PT
✅ Drop-In✓ In Stock
$3.61 / Unit
View Datasheet →DSPIC33CK128MP208T-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC 33CK, 16-bit |
| Core Speed | 100 MHz |
| Flash Program Memory | 128KB (128K x 8) |
| RAM | 16KB |
| Supply Voltage | 3.3 V |
| Package | 80-TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| CAN FD | Yes (CAN Flexible Data) |
| High-Resolution PWM | Yes |
| Integrated Op-Amps | 3 |
| Integrated Comparators | 3 |
| PTG (Programmable Time Generator) | Yes |
| Temperature Grade | -40C to +85C (I grade) |
| Functional Safety Support | FuSa variant supported |
| Packaging | Tape & Reel (T/R), 1200 units per reel |
DSPIC33CK128MP208T-I/PT 80-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK128MP208T-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 DSPIC33CK128MP208T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK128MP208T-I/PT is suitable for 6 applications: Digital Switch-Mode Power Supplies, Sensorless Brushless DC / PMSM Motor Drives, Automotive and Industrial CAN FD Nodes, Advanced Sensing and Control Systems, LED Lighting and Ballast Control, Wireless and Embedded Communication Subsystems.
Digital Switch-Mode Power Supplies
The DSPIC33CK128MP208T-I/PT fits digital power conversion because its High-Resolution PWM provides sub-nanosecond-class duty-cycle resolution, enabling precise control of phase margin in AC/DC and DC/DC converters that discrete-resolution PWM cannot achieve. The 100 MHz DSP core with single-cycle MAC executes Proportional-Integral and 2P2Z compensators inside narrow PWM switching periods deterministically. In a typical topology, the on-chip op-amps amplify shunt current feedback, comparators handle cycle-by-cycle overcurrent limiting, and ADC conversions are triggered in synchronization with the PWM. Compared with an analog controller, this DSC adds firmware-configurable soft-start, fault logging, and adaptive control. The 3.3V supply and -40C to +85C grade suit telecom rectifiers and server PSU designs.
Recommended
Sensorless Brushless DC / PMSM Motor Drives
For sensorless BLDC and PMSM drives, the DSPIC33CK128MP208T-I/PT integrates the exact peripheral mix a field-oriented control loop needs: multiple High-Resolution PWM channels driving a three-phase inverter, three op-amps conditioning phase-current shunt signals, and three comparators supporting hardware overcurrent trips with no CPU latency. The 100 MHz core computes Clarke, Park, and PI transforms plus a position observer each PWM cycle, meeting typical 10-20 kHz current-loop deadlines with headroom. Its 128KB Flash holds FOC firmware plus communication stacks, while 16KB RAM buffers observer state. CAN FD allows seamless integration into industrial drive networks. The 80-TQFP (12x12 mm) footprint provides enough I/O for gate drivers, rotor-position inputs, and fault diagnostics in a compact controller board.
Recommended
Automotive and Industrial CAN FD Nodes
The integrated CAN Flexible Data (CAN FD) controller makes the DSPIC33CK128MP208T-I/PT a natural choice for automotive body, powertrain-auxiliary, and industrial field-bus nodes. CAN FD raises the data-phase bit rate beyond classical CAN, allowing this DSC to serve as a gateway or sensor node moving larger payloads such as diagnostic frames or calibration data. Distributor and manufacturer listings note the dsPIC33CK family supports Functional Safety (FuSa) development and automotive segments, so the same silicon family spans consumer and qualified designs. The 100 MHz core processes J1939/UDS-style stacks concurrently with control loops. The -40C to +85C I-grade covers most under-hood-adjacent zones, and the 80-pin package leaves I/O headroom for LIN-style auxiliary links and discrete sensing.
Recommended
Advanced Sensing and Control Systems
The DSPIC33CK128MP208T-I/PT suits advanced sensing and control applications that combine high-rate signal processing with real-time actuation. The 16-bit DSP engine performs FIR/IIR filtering and FFT-based feature extraction on sensor streams using single-cycle multiply-accumulate operations, while the three on-chip op-amps provide gain staging directly for small sensor outputs, reducing board area and bill-of-material count. The Programmable Time Generator (PTG) sequences measurements autonomously, offloading timing chores from the CPU and improving jitter behavior. Applications include precision HVAC control, laboratory instrumentation, and condition-monitoring nodes. The 128KB Flash accommodates signal-processing code plus calibration tables, and CAN FD streams results to supervisory controllers. Microchip documents the dsPIC33CK family explicitly for advanced sensing and control designs.
Recommended
LED Lighting and Ballast Control
High-resolution PWM makes the DSPIC33CK128MP208T-I/PT effective in digital LED drivers and electronic ballasts, where dimming resolution and switching regulation both benefit from fine pulse control. The HRPWM module achieves duty-cycle steps far below what a standard 16-bit PWM timer resolves at hundreds of kilohertz, supporting smooth deep-dimming curves and stable current regulation in buck or boost LED topologies. The DSP core runs averaged-current-mode loops while comparators protect against inductor or LED-string overcurrent in hardware. The 128KB Flash stores multi-protocol dimming interfaces (DALI-like logic over UART or CAN FD), and the 80-pin package drives multiple strings plus housekeeping I/O. The 3.3V, -40C to +85C operating envelope suits industrial and commercial luminaire environments.
Recommended
Wireless and Embedded Communication Subsystems
While the DSPIC33CK128MP208T-I/PT has no on-chip radio, its 100 MHz DSP core, CAN FD, and rich UART/SPI/I2C connectivity make it a strong companion controller for wireless subsystems in industrial IoT gateways and smart-grid equipment. It preprocesses sensor data with DSP instructions before transmission, manages protocol framing, and bridges CAN FD field buses to radio modules over SPI or UART. The PTG automates sample scheduling so communication tasks do not disturb timing-critical measurement loops. The 128KB Flash holds a comms stack plus an OTA-update bootloader, and the 80-TQFP provides flexible pin multiplexing via Peripheral Pin Select. Combined with dsPIC33CH dual-core parts on the same PCB family, it covers both control-plane and comms-plane roles.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK128MP208T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK128MP208-I/PT | DSPIC33CK64MP208-I/PT | DSPIC33CK256MP208-I/PT | DSPIC33CK128MP205-E/PT |
|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 64-TQFP - different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128KB | 128KB | 64KB | 256KB | 128KB |
| RAM | 16KB | 16KB | 16KB | 16KB | 16KB |
| Core Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Pin Count | 80 | 80 | 80 | 80 | 64 |
| CAN FD | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Full 128KB Flash within the 80-pin TQFP family (vs DSPIC33CK64MP208-I/PT)
- Cost-effective mid-memory choice (vs DSPIC33CK256MP208-I/PT)
- Reel-ready for high-volume production (vs DSPIC33CK128MP208-I/PT)
- Trade-off: I-grade temperature only (vs DSPIC33CK128MP205-E/PT)
Design Notes
The DSPIC33CK128MP208T-I/PT runs from a 3.3V supply. Decouple all VDD/VDDCORE pairs per the Microchip hardware design guidelines: place 0.1uF ceramic capacitors within 2 mm of each power pin plus bulk 10uF at the board entry. The dsPIC33CK core requires its internal regulator output decoupled exactly as the datasheet specifies - omitting the core-regulator capacitor is a common bring-up failure causing brown-out resets during 100 MHz DSP burst execution.
For digital power use, keep the High-Resolution PWM output traces to gate drivers short and away from op-amp/comparator feedback routing. The three on-chip op-amps share package pins with digital I/O subject to PPS remapping - route analog inputs on inner layers with ground guarding. Reference the dsPIC33CK family reference manual typical-application circuits when connecting shunt-based current sensing, because op-amp gain configuration resistors affect accuracy.
Do not assume firmware written for dsPIC33F/33E parts runs unchanged: the dsPIC33CK core changes some configuration registers and oscillator tree options. Verify the 16KB RAM budget during development since DSP buffering plus CAN FD message RAM can consume it quickly. When substituting the 64KB or 256KB Flash siblings, re-check linker scripts and flash row sizes, and confirm the T (tape-and-reel) suffix matches your pick-and-place reel requirements.
Compliance Information
Verified web data does not include explicit RoHS/REACH/lead-free status for this MPN; Microchip general-purpose DSCs are typically RoHS compliant, but confirm on the official Microchip product page before compliance-sensitive designs.
