DSPIC33CK32MP205T-I/M4 - 100MHz 16-bit DSC | Microchip Technology
MPN: DSPIC33CK32MP205T-I/M4 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.94 | $3.94 |
| 10 | $3.62 | $36.20 |
| 25 | $3.41 | $85.25 |
| 100 | $3.26 | $326.00 |
| 1,000 | $2.98 | $2,980.00 |
DSPIC33CK32MP205T-I/M4 Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy of embedded systems, the DSC sits between general-purpose MCUs and dedicated DSPs, making it the preferred choice for closed-loop control applications such as digital power supplies, motor drives, and power-factor-correction stages that need deterministic interrupt latency and high-resolution pulse-width modulation.
Key features include a 100 MHz dsPIC33CK core delivering up to 100 MIPS, 32 KB (32K x 8) of program Flash with ECC and dual-partition live update support in the wider family, 8 KB of data SRAM, an integrated 12-bit ADC, three on-chip operational amplifiers, three analog comparators, a Programmable Gain Amplifier path for current sensing, and high-resolution PWM outputs. Controller Area Network Flexible Data (CAN FD) support on the family enables industrial networking, while the PTG (Pulse Train Generator) peripheral offloads timing-critical sequencing from the CPU.
The dsPIC33CK architecture uses a Modified Harvard design with a 24-bit instruction word, single-cycle MAC, DSP instruction set, and hardware looping, which suits fast control-loop execution at 100 MIPS. The integrated op amps can close current-sense loops without external amplifiers, reducing BOM cost and board area in compact power stages.
Typical applications include digital power supplies (LLC, buck, PFC), brushless DC and PMSM motor control, LED drivers, and solar micro-inverters. The 100 MHz core and HR PWM give the control-loop bandwidth these topologies demand.
Design consideration: the I-suffix device is rated -40C to +85C at 3.0V to 3.6V; ensure decoupling of the exposed pad for thermal and ground integrity at full clock speed.
This page synthesizes distributor pricing, pin-compatible family alternatives, and design guidance not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK32MP205T-I/M4 — 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 DSPIC33CK32MP205T-I/M4 (same form factor and footprint) — differing in Core, Package, ADC Resolution, Functional Safety Support, PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK32MP205T-E/M4
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK32MC105-E/M4
✅ Drop-In✓ In Stock
$3.2 / Unit
View Datasheet →DSPIC33CK32MP105T-I/M4
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.35 / Unit
View Datasheet →DSPIC33CK32MC105-E/PT
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →DSPIC33CK32MP205T-I/M4 Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC core |
| Core Size | 16-bit |
| Maximum Clock Frequency | 100 MHz |
| Program Memory Size | 32 KB (32K x 8) Flash |
| Data RAM Size | 8 KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| On-Chip Operational Amplifiers | 3 |
| On-Chip Comparators | 3 |
| CAN Interface | CAN Flexible Data (CAN FD) |
| Special Peripherals | PTG (Pulse Train Generator), High-Resolution PWM |
| Operating Temperature Range | -40C to +85C (I suffix) |
| Package | 48-UQFN (6x6 mm) with exposed pad |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T) |
| Product Status | Active |
| Functional Safety Support | FuSa (Functional Safety) variant family |
DSPIC33CK32MP205T-I/M4 48-uqfn (6x6 mm) with exposed pad Pin Configuration Guide
Pin configuration for DSPIC33CK32MP205T-I/M4 (48-uqfn (6x6 mm) with exposed pad 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 DSPIC33CK32MP205T-I/M4.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK32MP205T-I/M4 is suitable for 6 applications: Digital Power Supplies (LLC / Buck / PFC), BLDC / PMSM Motor Control, Industrial CAN FD Networking Nodes, LED Drivers and Lighting Control, Solar Micro-Inverters and Power Optimizers, Advanced Sensing and Condition Monitoring.
Digital Power Supplies (LLC / Buck / PFC)
The DSPIC33CK32MP205T-I/M4 fits digital power conversion because its 100 MHz core executes voltage- and current-loop compensation at switching frequencies well above 100 kHz, while high-resolution PWM provides fine duty-cycle resolution for tight output regulation. The three on-chip op amps buffer current-shunt feedback without external amplifiers, and three comparators support cycle-by-cycle overcurrent protection with negligible latency. In a typical LLC or PFC stage, the DSC sits between the feedback dividers and the gate drivers, closing both loops in firmware with DSP MAC instructions. Unlike fixed-function controllers, firmware-based control allows soft-start profiles, burst mode, and adaptive dead-time tuning; the trade-off is that software latency must be budgeted in the loop design.
Recommended
BLDC / PMSM Motor Control
Field-oriented control (FOC) of brushless DC and permanent-magnet synchronous motors is a core use case for the DSPIC33CK32MP205T-I/M4. The 100 MHz dsPIC33CK core executes the Clarke/Park transforms and PI current loops within one PWM period using single-cycle MAC and hardware looping. The three integrated op amps condition low-side shunt currents, the three comparators implement hardware overcurrent trip, and high-resolution PWM generates complementary outputs with programmable dead time. The PTG peripheral can autonomously sequence commutation housekeeping tasks. Placed on the gate-driver side of the inverter, the DSC replaces discrete control logic and reduces BOM count; the main design consideration is ADC sampling synchronization with the PWM center to avoid switching noise in current readings.
Recommended
Industrial CAN FD Networking Nodes
With integrated CAN Flexible Data (CAN FD) support, the DSPIC33CK32MP205T-I/M4 serves as an intelligent node in industrial automation networks where sensors, drives, and controllers exchange larger payloads at higher data rates than classical CAN allows. The 100 MHz core handles protocol stacks and application logic concurrently, while 32 KB Flash accommodates a lean CANopen or J1939 stack. The 48-UQFN (6x6 mm) footprint keeps the node compact for distribution boxes and actuator housings. Pair the controller with a CAN FD transceiver at the physical layer; typical bus speeds of 5 Mbit/s in the data phase are well within the peripheral's capability, and the I-grade -40C to +85C rating covers standard industrial enclosures.
Recommended
LED Drivers and Lighting Control
High-brightness LED drivers benefit from the DSPIC33CK32MP205T-I/M4's combination of high-resolution PWM and analog comparators. Constant-current regulation can be implemented with cycle-by-cycle peak-current control using the comparator and DAC reference, freeing the CPU for dimming curves, thermal derating, and communication. The PTG peripheral generates autonomous pulse trains for shunt-FET dimming schemes without CPU intervention. In a typical buck LED driver, the DSC samples output current through the internal op amp, adjusts the PWM duty cycle, and enforces fault protection in hardware. The 6x6 mm UQFN package fits into compact luminaire driver boards, and the -40C to +85C industrial rating suits outdoor lighting enclosures.
Recommended
Solar Micro-Inverters and Power Optimizers
Solar micro-inverter and power-optimizer designs demand simultaneous MPPT execution, grid-synchronization, and safety compliance, all of which the DSPIC33CK32MP205T-I/M4 can handle at 100 MIPS. The 12-bit ADC samples panel voltage/current and grid waveforms synchronously with the PWM carriers, while the DSP MAC engine runs notch filters and PLL grid-tracking code within the loop deadline. High-resolution PWM drives the interleaved boost and DC-AC stages with the phase shifting needed to minimize input ripple. The CAN FD interface links multiple optimizer units for panel-level monitoring. Firmware-defined control allows rapid adaptation to regional grid codes; designers should budget Flash usage carefully, as 32 KB is adequate for MPPT and control but tight with extensive metering code.
Recommended
Advanced Sensing and Condition Monitoring
The DSPIC33CK32MP205T-I/M4 suits advanced sensing nodes that digitize, filter, and classify analog measurements locally. The integrated 12-bit ADC, three op amps, and three comparators form a complete analog front end for bridge sensors, current transformers, and thermocouple conditioning without external signal-chain ICs. The 100 MHz core applies DSP filtering (IIR/FIR) in real time, while 8 KB SRAM buffers waveform snapshots for trend analysis. The CAN FD interface streams processed data to supervisory controllers in industrial monitoring networks. Typical deployments include pump vibration/current signature monitoring and battery-pack sensing, where the FuSa (Functional Safety) orientation of the dsPIC33CK family supports safety-relevant designs; the compact 6x6 mm UQFN allows integration directly into sensor housings.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK32MP205T-I/M4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK32MP205T-E/M4 | DSPIC33CK32MC105-E/M4 | DSPIC33CK32MP105T-I/M4 | DSPIC33CK32MC105-E/PT |
|---|---|---|---|---|---|
| Package | 48-UQFN (6x6 mm) with exposed pad | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Program Flash | 32 KB | 32 KB | 32 KB | 64 KB | 32 KB |
| Data SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Operating Temperature | -40C to +85C (I suffix) | -40C to +125C (E suffix) | -40C to +125C (E suffix) | -40C to +85C (I suffix) | -40C to +125C (E suffix) |
| Peripheral Set | MP series (full MP analog/PWM set, 3 op amps, 3 comparators) | MP series - same | MC series - reduced peripheral subset | MP series - same | MC series - reduced peripheral subset |
| CAN FD | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Full MP peripheral set with 3 op amps and 3 comparators (vs DSPIC33CK32MC105-E/M4)
- Extended-temperature sibling available in identical footprint (vs DSPIC33CK32MP205T-E/M4)
- Lowest Flash footprint cost within the pin-compatible family (vs DSPIC33CK32MP105T-I/M4)
Design Notes
The 48-UQFN (6x6 mm) M4 package has an exposed pad on the underside that functions as the primary ground connection and thermal path. Design the PCB land pattern with a matching exposed-pad footprint connected to a grounded via array (typically 4 to 9 vias of 0.3 mm) to the internal ground plane. Perimeter pin pitch on UQFN is 0.4-0.5 mm, so use solder mask defined pads and a 1:1 stencil aperture on the exposed pad to avoid bridging. Follow the Microchip UQFN layout application note for exact dimensions.
The dsPIC33CK core runs from a 3.0 V to 3.6 V supply with internal regulators for the core domain. Place a 10 uF bulk capacitor plus 0.1 uF ceramic decoupling capacitors at each VDD pin, as close to the pins as possible, and follow the datasheet's recommended capacitor values on the internal regulator output pin (VCAP-style pin). Do not skip the regulator output capacitor - omission causes brown-out resets at 100 MHz operation. Power the analog supply (AVDD) through an RC or ferrite filter from the digital rail to preserve ADC accuracy.
The dsPIC33CK family uses Peripheral Pin Select (PPS) to route most digital peripherals to physical pins, so a schematic that assumes fixed pin functions will not match the final firmware mapping. Lock the PPS assignment in a design document before PCB release. Also note that the I-suffix temperature limit is +85C: designs targeting +125C ambient must order the E-suffix (DSPIC33CK32MP205T-E/M4). Finally, enable Code Guard/config-bit write protection early to avoid field bricking.
Compliance Information
Compliance status for this exact ordering code was not stated in the provided distributor data. Verify RoHS/REACH/lead-free status on the Microchip product page environmental section before finalizing EU-market designs.
