DSPIC33FJ32GP202T-I/MM - 16-bit DSC 40 MIPS 32KB Flash QFN-28 | Microchip
MPN: DSPIC33FJ32GP202T-I/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.35 | $4.35 |
| 10 | $4.05 | $40.50 |
| 100 | $3.72 | $372.00 |
| 500 | $3.48 | $1,740.00 |
| 1,000 | $3.19 | $3,190.00 |
DSPIC33FJ32GP202T-I/MM Overview
A digital signal controller combines the compute throughput of a digital signal processor with the peripheral integration and ease of use of a microcontroller. In the power-management hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP, providing deterministic single-cycle MAC/DSP instructions plus real-time control peripherals, making it the preferred choice for closed-loop control systems such as motor drives and digital power supplies.
Key features include a modified Harvard 16-bit core executing single-cycle multiply-accumulate operations, up to four high-speed analog comparators with direct output connections, a 10-bit/12-bit ADC for fast analog sampling, and high-speed PWM modules with complementary outputs and dead-time insertion. The device supports In-Circuit Serial Programming (ICSP) and debugging via dedicated PGECx/PGEDx pins.
Architecturally, the dsPIC33FJ core pairs the CPU with a zero-overhead loop, DO and REPEAT instructions, and dual address-generation units, letting a 40 MHz controller sustain filter and control-loop arithmetic typical of 32 kHz to 100 kHz switching power stages. Peripheral Pin Select routes digital peripherals to flexible I/O locations, easing PCB layout.
Typical applications include brushless DC and PMSM motor control, digital SMPS and LLC power converters, LED dimming ballasts, power-factor-correction stages, and general-purpose sensing nodes.
Design consideration: keep the ICSP trace between the programming connector and PGEC/PGED pins short, and always fit the VCAP/VDDCORE stability capacitor; omitting it causes erratic resets.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ32GP202T-I/MM — 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 DSPIC33FJ32GP202T-I/MM (same form factor and footprint) — differing in Core Architecture, Timers, Package, ADC, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32GP202T-H/MM
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32GP302T-I/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.28 / Unit
View Datasheet →DSPIC33FJ64GP202T-I/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.96 / Unit
View Datasheet →DSPIC33FJ128MC802-I/MM
✅ Drop-In✓ In Stock
$4.9 / Unit
View Datasheet →DSPIC33FJ16GS502-H/MM
✅ Drop-In✓ In Stock
$3.45 / Unit
View Datasheet →DSPIC33FJ12MC202-I/ML
✅ Drop-In✓ In Stock
$4.66 / Unit
View Datasheet →DSPIC33FJ32GP202T-I/MM Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F modified Harvard, RISC |
| Maximum CPU Speed | 40 MIPS at 40 MHz |
| Program Memory (Flash) | 32 KB |
| SRAM | 2 KB |
| Supply Voltage | 3 V to 3.6 V |
| Operating Temperature | -40C to +85C |
| Package | 28-QFN-S (6x6 mm) with exposed pad |
| Mounting Type | Surface Mount |
| I/O Ports | Up to 21 I/O on 28-pin package |
| High-Speed Comparators | Up to 4, direct output connection |
| ADC | 10-bit, high-speed, 1 Msps class |
| PWM | High-speed PWM with complementary outputs |
| Timers | Multiple 16-bit timers |
| Programming / Debug | ICSP via PGECx/PGEDx pins |
| ROM Type | Flash |
| Lifecycle Stage | Active |
| RoHS Status | Lead free / RoHS compliant |
| Packaging | Tape and Reel (T suffix) |
DSPIC33FJ32GP202T-I/MM Pin Configuration
| Pin 1 | MCLR — Master clear reset, active low (also programming voltage input) |
| Pin 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / ADC positive reference / change notification / port B |
| Pin 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / ADC negative reference / change notification / port B |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI1 slave select / change notification / port B |
| Pin 5 | AN3/INDX/CN5/RB3 — Analog input 3 / QEI index / change notification / port B |
| Pin 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / QEI channel A / input capture 7 / port B |
| Pin 7 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 8 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / QEI channel B / input capture 8 / port B |
| Pin 9 | AN6/OCFA/PGD/RB6 — Analog input 6 / PWM fault A / ICSP data / port B |
| Pin 10 | AN7/PGC/RB7 — Analog input 7 / ICSP clock / port B |
| Pin 11 | AN8/RB8 — Analog input 8 / port B |
| Pin 12 | AN9/RB9 — Analog input 9 / port B |
| Pin 13 | AN10/CVREF/RB10 — Analog input 10 / comparator voltage reference output / port B |
| Pin 14 | AN11/RB11 — Analog input 11 / port B |
| Pin 15 | VSS — Ground reference |
| Pin 16 | AN12/RB12 — Analog input 12 / port B |
| Pin 17 | AN13/RB13 — Analog input 13 / port B |
| Pin 18 | AN14/RB14 — Analog input 14 / port B |
| Pin 19 | AN15/RB15 — Analog input 15 / port B |
| Pin 20 | AVDD — Analog positive supply |
| Pin 21 | AVSS — Analog ground |
| Pin 22 | T1CK/RC0 — Timer 1 external clock input / port C |
| Pin 23 | U1RX/SDA/RC1 — UART 1 receive / I2C data / port C |
| Pin 24 | U1TX/SCL/RC2 — UART 1 transmit / I2C clock / port C |
| Pin 25 | OSC1/CLKI — Oscillator crystal input / external clock input |
| Pin 26 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output / port C |
| Pin 27 | VCAP/VDDCORE — CPU core regulator stabilizing capacitor pin (external capacitor required) |
| Pin 28 | VDD — Positive supply (3.0 V to 3.6 V) |
Typical Applications
DSPIC33FJ32GP202T-I/MM is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digital Switch-Mode Power Supplies, LED Lighting and Ballast Control, Industrial Sensing and Automation Nodes, Embedded Control with In-Circuit Programming, Audio and Signal Processing Front Ends.
Brushless DC / PMSM Motor Control
The DSPIC33FJ32GP202T-I/MM fits BLDC and PMSM drives because its 40 MIPS 16-bit core executes field-oriented-control arithmetic with single-cycle MAC instructions, while the high-speed PWM generates complementary outputs with programmable dead time for the three-phase inverter. The fast ADC samples phase currents and the DC bus each PWM cycle, and the up-to-four high-speed comparators give hardware cycle-by-cycle overcurrent protection that acts without CPU latency. In a typical 20-50 kHz drive, the CPU closes current loops in firmware while the comparator handles fault shutdown at nanosecond-class response. Designers should reserve the PGEC/PGED pins for ICSP debugging access and fit the mandatory VCAP capacitor on pin 27. The 32 KB flash holds sensorless or sensored control firmware with room for a bootloader.
Recommended
Digital Switch-Mode Power Supplies
For digital SMPS and LLC converters, the DSPIC33FJ32GP202T-I/MM provides the high-speed PWM with dead-time insertion needed for half-bridge and full-bridge power stages, plus a fast ADC that samples output voltage and current at the switching frequency for PI control-loop closure at 40 MIPS. The integrated comparators implement hardware current limiting between PWM cycles, protecting the MOSFETs during transient faults without firmware delay. A 3.0-3.6 V rail powers the controller directly from a small bias winding or LDO, and the 6x6 mm QFN fits compact controller areas near the gate-driver circuitry. Keep ICSP traces short per Microchip data sheet 70290J so production programming does not disturb the power stage layout, and decouple VDD/VDDCORE as specified to prevent control-loop jitter.
Recommended
LED Lighting and Ballast Control
In LED drivers and electronic ballasts, the DSPIC33FJ32GP202T-I/MM generates dimming PWM and phase-control waveforms from the high-speed PWM modules while the ADC monitors current and temperature feedback, supporting constant-current regulation and thermal foldback. The 40 MIPS core runs average-current-mode control loops efficiently, and the analog comparators provide fast overcurrent trip for shorted-string events. Its industrial -40C to +85C range suits enclosed luminaires and outdoor drivers, and the 32 KB flash accommodates dimming curves, DALI-style protocol handlers, and a firmware bootloader for field updates. The small 6x6 mm QFN-S package fits inside standard driver housings. Recommended practice is to route the sensitive ADC inputs away from the PWM switching nodes and use the exposed pad as a solid ground connection.
Recommended
Industrial Sensing and Automation Nodes
The DSPIC33FJ32GP202T-I/MM serves as the controller in industrial sensor nodes and small automation modules, where its 40 MIPS core handles filtering and scaling of ADC samples, the multiple 16-bit timers coordinate sampling and communication timing, and Peripheral Pin Select routes UART or other digital functions to the most convenient pins for the PCB. The up-to-four high-speed comparators implement window or threshold alarms in hardware, offloading the CPU. With 32 KB flash and 2 KB SRAM, it hosts protocol stacks and calibration routines while retaining margin, and industrial -40C to +85C operation suits factory-floor cabinets. Power comes from a clean 3.3 V rail; designers should use a solid ground plane on the exposed pad and keep analog inputs on AN0-AN15 short and filtered for measurement accuracy.
Recommended
Embedded Control with In-Circuit Programming
For products requiring field or production-line firmware updates, the DSPIC33FJ32GP202T-I/MM supports In-Circuit Serial Programming and debugging through its dedicated PGECx/PGEDx pins, allowing the flash to be reprogrammed while soldered to the board. Microchip data sheet 70290J explicitly recommends keeping ICSP traces short, which simplifies bed-of-nails programming fixtures and reduces signal-integrity risk during programming. The 32 KB flash supports a small bootloader plus application image, enabling field upgrades over UART. The mandatory VCAP capacitor on the VDDCORE pin must be fitted close to pin 27 for reliable erase/write cycles. Development tooling includes MPLAB X IDE, the XC16 compiler, PICkit and ICD programmers, and the Explorer 16/32 board with a device PIM, so a complete low-cost toolchain supports prototyping through production.
Recommended
Audio and Signal Processing Front Ends
The DSPIC33FJ32GP202T-I/MM can act as a compact DSP engine for audio front ends and acoustic sensing, executing FIR/IIR filters with single-cycle DSP multiply-accumulate instructions at 40 MIPS, enough for low-channel-count real-time processing. The high-speed ADC digitizes microphone or line-level signals (with external front-end conditioning), and the comparators provide fast threshold detection for acoustic event flags. Its 6x6 mm QFN-S footprint and 3.3 V single-supply operation simplify integration into compact mixed-signal boards alongside codec or amplifier stages. With 32 KB flash, filter coefficient tables and signal-chain firmware fit with margin, and 2 KB SRAM supports moderate block-based processing. Keep the analog ground return on the exposed pad quiet and separate PWM switching current from the ADC reference path to preserve signal-to-noise performance.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32GP202T-I/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32GP202T-H/MM | DSPIC33FJ32GP302T-I/MM | DSPIC33FJ64GP202T-I/MM | DSPIC33FJ128MC802-I/MM | DSPIC33FJ16GS502-H/MM | DSPIC33FJ12MC202-I/ML |
|---|---|---|---|---|---|---|---|
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 32 KB | 32 KB | 32 KB | 64 KB | 128 KB | 16 KB | 12 KB |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS class | 40 MIPS |
| Operating Temperature | -40C to +85C (I grade) | -40C to +125C (H grade) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C |
| 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 | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
Key Differentiators
- Extended-temperature drop-in sibling available (vs DSPIC33FJ32GP202T-H/MM)
- CAN-capable upgrade in the same footprint (vs DSPIC33FJ32GP302T-I/MM)
- Balanced flash-to-cost point in a 32KB-class family (vs DSPIC33FJ64GP202T-I/MM)
Design Notes
Solder the exposed pad of the 28-QFN-S to a grounded copper pour with an array of thermal vias; this pad is the primary ground return for the digital core, and a floating pad causes erratic analog performance and EMI. Decouple both VDD pins (7, 28) and AVDD (20) with 0.1 uF ceramics placed within 2 mm of each pin, plus one bulk 4.7-10 uF per rail. Keep the analog ground island tied to the exposed pad at a single point.
The VCAP/VDDCORE pin (27) requires its external stabilizing capacitor for the internal core regulator - omitting it is the most common cause of random resets on dsPIC33FJ boards. Also keep ICSP traces between the programming header and PGEC/PGED pins short, as Microchip data sheet 70290J recommends, and do not load the MCLR pin with large capacitance that slows reset response. Avoid using VDDCORE as an external supply rail.
When using the ADC on AN0-AN15, route PWM and gate-driver traces away from analog inputs and use the AVDD/AVSS pins as a quiet analog supply with an RC or ferrite filter from the digital 3.3 V rail. Comparator inputs used for cycle-by-cycle current limiting should be Kelvin-connected at the current-sense resistor so switching noise does not cause false trips. Peripheral Pin Select lets you move digital functions to pins far from noisy nodes - exploit this during layout instead of fixing noise in firmware.
Estimated: at 40 MIPS the dsPIC33FJ core typically draws on the order of tens of milliamps from the 3.3 V rail (tens-to-low-hundreds of microwatts per MHz class); budget roughly 150-250 mW worst case and verify with Microchip's power estimation tool in MPLAB X for your exact clock configuration. Size the 3.3 V regulator with 2x margin for I/O source current driving LEDs or gate-driver inputs, and power AVDD through an RC filter to improve ADC accuracy.
Compliance Information
Lead free / RoHS compliant per yic-electronics listing and Microchip product data. REACH, halogen-free, and conflict-minerals status not stated in verified data.
