DSPIC33FJ32MC202T-I/SS - 16-bit 40MIPS 32KB Flash DSC | Microchip
MPN: DSPIC33FJ32MC202T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.12 | $5.12 |
| 10 | $4.61 | $46.10 |
| 100 | $4.1 | $410.00 |
| 500 | $3.68 | $1,840.00 |
| 1,000 | $3.27 | $3,270.00 |
DSPIC33FJ32MC202T-I/SS Overview
A Digital Signal Controller combines the computational core of a digital signal processor with the peripheral set and ease of use of a microcontroller. Within the power management and motion system hierarchy, the DSC sits above a basic MCU and below a standalone DSP, making it the standard choice for closed-loop motor control and digital power conversion where deterministic interrupt latency and hardware PWM units matter.
Key features of this device include two high-speed PWM generators with independent timebases for motor-control topologies such as BLDC, PMSM, and ACIM drives, plus the Peripheral Pin Select (PPS) capability that allows engineers to remap digital peripherals to available pins, dramatically improving layout flexibility on a 28-pin part. The 6-channel 10-bit/12-bit ADC with up to 1.1 Msps sampling supports current-shunt feedback for field-oriented control, and high-speed comparators provide hardware overcurrent protection with direct connections for fast fault response.
Architecturally, the dsPIC33F core uses a modified Harvard 16-bit pipeline with DSP engine features including a 17-bit x 17-bit single-cycle hardware multiplier, 40-bit accumulator, barrel shifter, and dual operand fetch, enabling math-intensive control loops to execute within tight PWM periods. The device also integrates 8 DMA channels, 5 timers, 2 UART/SPI-class serial ports, 3 external interrupt sources, and boundary-scan/JTAG programming support. Supply voltage is 3.0V to 3.6V, consistent with modern 3.3V industrial rails.
Typical applications include sensorless brushless DC and permanent-magnet motor drives for appliances and power tools, digital switched-mode power supplies and solar micro-inverters, and industrial automation nodes requiring deterministic control plus serial connectivity.
Design consideration: at 40 MIPS the device typically runs from an external crystal with the on-chip PLL; budget the 3.3V rail decoupling carefully and reserve PPS assignments early, since the 21 available I/O pins fill quickly in motor-control designs.
This page synthesizes verified distributor listings, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ32MC202T-I/SS — 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 DSPIC33FJ32MC202T-I/SS (same form factor and footprint) — differing in Package, Core Architecture, Program Memory, RoHS Status, ADC Resolution.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32MC202T-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32GP202T-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.19 / Unit
View Datasheet →PIC24HJ32GP202T-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.24 / Unit
View Datasheet →DSPIC33FJ12MC202-I/SS
✅ Drop-In✓ In Stock
$2.62 / Unit
View Datasheet →DSPIC33FJ32MC202T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F modified Harvard |
| Maximum CPU Speed | 40 MIPS (40 MHz) |
| Program Memory | 32 KB (32K x 8) Flash |
| Data RAM | 2 KB (2K x 8) SRAM |
| Supply Voltage | 3.0 V to 3.6 V |
| Package | 28-SSOP (0.65 mm pitch) |
| I/O Pins | 21 |
| ADC Resolution | 10-bit / 12-bit, 6 channels |
| PWM Generators | 2 with independent timebases |
| DMA Channels | 8 |
| Timers | 5 |
| Serial Ports | 2 |
| External Interrupts | 3 |
| Comparators | High-speed comparators with direct PWM fault connection |
| Special Features | Peripheral Pin Select (PPS), DSP engine, boundary scan |
| Operating Temperature | -40C to +85C (Industrial, I suffix) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant / Lead free |
| Lifecycle Status | ACTIVE |
DSPIC33FJ32MC202T-I/SS 28-ssop (0.65 mm pitch) Pin Configuration Guide
Pin configuration for DSPIC33FJ32MC202T-I/SS (28-ssop (0.65 mm pitch) 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 DSPIC33FJ32MC202T-I/SS.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32MC202T-I/SS is suitable for 6 applications: Sensorless BLDC / PMSM Motor Drives, Digital Switch-Mode Power Supplies, Industrial Automation and Control Nodes, Consumer Appliances with Motor Control, Power Tools and E-mobility Drives, LED Lighting and Electronic Ballasts.
Sensorless BLDC / PMSM Motor Drives
The DSPIC33FJ32MC202T-I/SS fits sensorless brushless DC and permanent-magnet synchronous motor drives because its two high-speed PWM generators with independent timebases produce complementary or independent PWM pairs for three-phase inverters, while the 6-channel ADC samples DC-bus and phase currents for field-oriented control. At 40 MIPS with a 17x17 hardware multiplier and 40-bit accumulator, the DSP engine executes the FOCClarke/Park transforms and PI current loops inside typical 10-20 kHz PWM periods. High-speed comparators wired directly to PWM fault inputs provide cycle-level overcurrent shutdown without software latency. In a typical appliance or power-tool design, the DSC drives the gate stage from a 3.3V rail, uses PPS to route PWM and feedback signals optimally on the 21 I/O pins, and closes the speed loop from back-EMF or observer estimates, eliminating hall sensors and their wiring cost.
Recommended
Digital Switch-Mode Power Supplies
Digital SMPS and DC-DC converters benefit directly from this DSC because the 40 MIPS core with DSP multiply-accumulate support implements voltage-mode or current-mode control laws deterministically, and the independent PWM timebases allow phase-shifted or interleaved topologies on a single 28-pin device. The 10/12-bit ADC with DMA offloads periodic current and voltage sampling so loop computations are never delayed by interrupt jitter, and the high-speed comparators provide hardware overcurrent trip that protects the power stage within one switching cycle. Typical uses include LLC and half-bridge converters, solar micro-inverter control stages, and telecom brick supplies. Because the part runs from 3.0V to 3.6V, it shares the controller 3.3V rail common in power systems, and Peripheral Pin Select simplifies routing feedback, PWM, and telemetry signals in dense power PCBs where pin availability is the primary constraint.
Recommended
Industrial Automation and Control Nodes
In industrial automation, the DSPIC33FJ32MC202T-I/SS serves as a compact, deterministic control node handling actuator control, sensor fusion, and serial telemetry. The -40C to +85C industrial temperature rating suits factory-floor cabinets and outdoor equipment, while 32KB Flash accommodates protocol stacks and control firmware, and the 8 DMA channels stream ADC or serial data without CPU overhead. Two serial ports implement RS-485/Modbus or SPI interconnects to PLC-level systems; the 3 external interrupt sources capture encoder or limit-switch events with low latency. The Peripheral Pin Select feature lets one PCB layout be reconfigured by firmware for different product variants, reducing SKU count. Compared with a general 8-bit MCU, the 16-bit core with hardware multiply finishes control and filtering algorithms far faster at comparable cost, and seamless migration within the PIC24/dsPIC33 families protects the design against future memory upsizing.
Recommended
Consumer Appliances with Motor Control
Appliances such as fans, blenders, vacuum cleaners, and washing machines increasingly use sensorless BLDC motors driven by low-pin-count DSCs, and the DSPIC33FJ32MC202T-I/SS is targeted at exactly this market segment per Microchip's low-pin-count Motor Control family positioning. Its 28-SSOP package keeps board area small for cost-driven consumer PCBs, while the 40 MIPS DSP core delivers the quiet, efficient speed control that modern appliance standards demand. The independent PWM timebases support variable-frequency compressor and blower drives; the 12-bit ADC mode resolves low-level current signals for torque estimation at low speeds; and the comparators protect the inverter from stall or rotor-lock overcurrent events common in consumer use. Firmware-controlled PPS lets a single hardware platform span multiple appliance models, and the family's migration path to larger dsPIC33 parts accommodates feature growth without redesign.
Recommended
Power Tools and E-mobility Drives
Cordless power tools and light e-mobility products use compact three-phase BLDC inverters where board space, protection speed, and control performance dominate, making the DSPIC33FJ32MC202T-I/SS a strong fit. The dual PWM generators produce the six drive signals via external gate drivers with adjustable dead time, and the hardware comparator overcurrent path trips the PWM outputs within nanoseconds-to-microseconds of a fault, protecting MOSFETs during stall events that are routine in drills and saws. The 40 MIPS DSP engine runs sensorless observers (sliding-mode or flux observer) to deliver full torque from zero speed without hall sensors, an important cost and reliability factor in sealed tool housings. Operation from a 3.3V rail derived from the battery pack, 2KB SRAM for observer state, and the 0.65mm-pitch 28-SSOP footprint allow the entire controller to sit on a compact driver board next to the gate stage.
Recommended
LED Lighting and Electronic Ballasts
High-power LED drivers and HID electronic ballasts require precise, phase-shifted or resonant switching control with fast protection, and the DSPIC33FJ32MC202T-I/SS provides this in a 28-pin package. The two independent PWM timebases drive half-bridge or LLC resonant stages with programmable dead time and frequency/phase modulation for dimming, while the 10/12-bit ADC closed loop regulates LED current for stable luminous output and the comparators implement hardware overcurrent and open-circuit lamp protection. At 40 MIPS the core sustains the control loop plus communication interfaces (DMX or DALI-style serial via UART/SPI ports) for networked lighting. Microchip explicitly lists digital lighting among dsPIC33F motor-control family use cases. The 3.0V to 3.6V operation and 21 remappable I/O pins let designers place feedback, PWM, and telemetry connections optimally on compact lighting power boards.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32MC202T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32MC202T-E/SS | DSPIC33FJ32GP202T-I/SS | PIC24HJ32GP202T-I/SS | DSPIC33FJ12MC202-I/SS |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Architecture | 16-bit dsPIC33F DSC with DSP engine | 16-bit dsPIC33F DSC with DSP engine | 16-bit dsPIC33F DSC with DSP engine | 16-bit PIC24H MCU (no DSP engine) | 16-bit dsPIC33F DSC with DSP engine |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS class | 40 MIPS class |
| Temperature Range | -40C to +85C (I) | Extended (E) grade | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
Key Differentiators
- Dedicated Motor Control PWM pair with independent timebases (vs DSPIC33FJ32GP202T-I/SS)
- 16-bit DSP engine with single-cycle 17x17 MAC (vs PIC24HJ32GP202T-I/SS)
- Full 32KB Flash in the same footprint (vs DSPIC33FJ12MC202-I/SS)
- Trade-off: standard industrial temperature only (vs DSPIC33FJ32MC202T-E/SS)
Design Notes
The DSPIC33FJ32MC202T-I/SS requires a 3.0V to 3.6V supply; do not connect it directly to 5V rails. Place a 0.1uF ceramic decoupling capacitor at each VDD/VSS pair plus a 2.2uF to 10uF bulk capacitor, with the closest pair to the AVRCLK... actually keep decoupling within 5mm of pins per standard dsPIC33F layout practice. When driving power MOSFET gate circuits, ensure controller ground returns are star-connected to the power-stage ground to prevent gate-drive switching noise corrupting ADC current samples.
Use the Peripheral Pin Select feature before finalizing routing: assign PWM outputs, UART, and RP remappable functions in firmware early so analog pins (AN0-AN5) stay dedicated to current and voltage feedback traces. Keep the analog feedback traces (phase-current shunt signals) away from PWM gate lines; the 6-channel ADC accuracy depends on a clean analog ground island around the VREF and ANx pins. On the 28-SSOP footprint, the 0.65mm pitch permits hand rework but requires a fine-tip iron and drag-solder care.
The T suffix means tape-and-reel; ordering one reel delivers the full standard quantity, not a single piece - order cut tape or a non-T suffix part for prototypes. Firmware must configure PPS remapping before using remappable peripherals, otherwise UART or PWM pins remain unconnected internally. When migrating code from dsPIC30F or PIC24H parts, verify the ADC reference configuration and comparator fault polarity, since these differ subtly between family generations despite seamless-migration compatibility.
Compliance Information
Lead-free, RoHS-compliant plastic 28-SSOP per digchip package description ('lead free, plastic'). Other compliance attributes not stated in provided data.
