DSPIC33FJ32GP202T-I/SS - 16-Bit DSC 40MIPS 32KB | Microchip
MPN: DSPIC33FJ32GP202T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.46 | $1,230.00 |
| 1,000 | $2.19 | $2,190.00 |
DSPIC33FJ32GP202T-I/SS Overview
A digital signal controller (DSC) is a hybrid device that merges the deterministic interrupt handling and peripheral integration of a microcontroller (MCU) with the arithmetic throughput of a digital signal processor (DSP). In the system hierarchy, a DSC sits between a general-purpose MCU and a dedicated DSP: it executes control-loop code and signal-processing math on the same core, eliminating the need for two separate processors in motor control, power conversion, and sensor-fusion designs. The dsPIC33F family is Microchip's mainstream 16-bit DSC line, positioned above the PIC24 MCU family and below the dsPIC33E/dsPIC33C families.
Key features of the DSPIC33FJ32GP202T-I/SS include 40 MIPS operation at 3.0 V to 3.6 V, 32 KB Flash with 2 KB SRAM, up to 35 general-purpose I/O pins, a 10-bit ADC, high-speed PWM outputs, and up to four high-speed comparators with direct connection to the PWM module. The device supports In-Circuit Serial Programming (ICSP) and in-circuit debugging through the PGECx/PGEDx pin pairs, enabling field firmware updates without removing the controller from the board.
The dsPIC33F core uses a 24-bit instruction word with a 16-bit data path and a barrel shifter, allowing division and normalization in a single cycle. The DSP engine supports fractional and integer arithmetic, saturation logic, and two 40-bit accumulators, which are essential for implementing digital filters, Park/Clarke transforms, and PID loops in motor-control firmware. The 3.3 V CMOS process keeps dynamic power low while maintaining 40 MIPS at the maximum rated clock.
Typical applications include brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) control, digital power supplies, solar micro-inverters, automotive sensor conditioning, and industrial instrumentation. The combination of 40 MIPS, hardware PWM, and fast ADC makes the DSPIC33FJ32GP202T-I/SS well suited to closed-loop control where loop latency directly affects stability margins.
When designing with this device, keep the ICSP trace between the programming connector and the PGECx/PGEDx pins as short as possible, and decouple every VDD pin with a 0.1 uF ceramic capacitor placed close to the package. The 28-lead SSOP footprint (0.65 mm pitch) requires careful solder-paste stencil design to avoid bridging.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for selection, replacement, and layout decisions.
Drop-in alternatives for DSPIC33FJ32GP202T-I/SS — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32GP202-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32GP202T-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32GP202T-H/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32GP202-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32GP202T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC with DSP engine |
| Maximum CPU Speed | 40 MIPS |
| Program Memory | 32 KB Flash (32K x 8) |
| Data Memory (RAM) | 2 KB SRAM |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| Package | 28-lead SSOP (0.65 mm pitch) |
| Mounting Type | Surface Mount |
| Number of I/O Pins | Up to 35 (per distributor data) |
| ADC Resolution | 10-bit |
| High-Speed PWM | Yes |
| High-Speed Comparators | Up to 4, direct PWM connection |
| Programming Interface | ICSP via PGECx/PGEDx pin pairs |
| Instruction Word Width | 24-bit |
| Data Path Width | 16-bit with barrel shifter |
| Accumulators | Two 40-bit accumulators |
| Packaging | Tape & Reel (T/R) |
| RoHS Status | Compliant (lead-free) |
DSPIC33FJ32GP202T-I/SS Pin Configuration
| Pin 1 | MCLR — Master clear (active-low reset) / programming voltage input |
| Pin 2 | EMUD2/AN2/RB2 — Emulator data / analog input AN2 / digital I/O RB2 |
| Pin 3 | AN3/RB3 — Analog input AN3 / digital I/O RB3 |
| Pin 4 | AN4/RB4 — Analog input AN4 / digital I/O RB4 |
| Pin 5 | AN5/RB5 — Analog input AN5 / digital I/O RB5 |
| Pin 6 | VSS — Ground |
| Pin 7 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 8 | PGED1/AN6/RB6 — ICSP data / analog input AN6 / digital I/O RB6 |
| Pin 9 | PGEC1/AN7/RB7 — ICSP clock / analog input AN7 / digital I/O RB7 |
| Pin 10 | AN8/RB8 — Analog input AN8 / digital I/O RB8 |
| Pin 11 | AN9/RB9 — Analog input AN9 / digital I/O RB9 |
| Pin 12 | AN10/RB10 — Analog input AN10 / digital I/O RB10 |
| Pin 13 | AN11/RB11 — Analog input AN11 / digital I/O RB11 |
| Pin 14 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 15 | VSS — Ground |
| Pin 16 | AN12/RB12 — Analog input AN12 / digital I/O RB12 |
| Pin 17 | AN13/RB13 — Analog input AN13 / digital I/O RB13 |
| Pin 18 | AN14/RB14 — Analog input AN14 / digital I/O RB14 |
| Pin 19 | AN15/RB15 — Analog input AN15 / digital I/O RB15 |
| Pin 20 | PGED2/EMUD1/RA0 — ICSP data / emulator data / digital I/O RA0 |
| Pin 21 | PGEC2/EMUC1/RA1 — ICSP clock / emulator clock / digital I/O RA1 |
| Pin 22 | AN16/RA2 — Analog input AN16 / digital I/O RA2 |
| Pin 23 | AN17/RA3 — Analog input AN17 / digital I/O RA3 |
| Pin 24 | AN18/RA4 — Analog input AN18 / digital I/O RA4 |
| Pin 25 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 26 | VSS — Ground |
| Pin 27 | AN19/RA9 — Analog input AN19 / digital I/O RA9 |
| Pin 28 | AN20/RA10 — Analog input AN20 / digital I/O RA10 |
Typical Applications
DSPIC33FJ32GP202T-I/SS is suitable for 6 applications: Brushless DC (BLDC) Motor Control, Digital Power Supply Control, Industrial Sensor Signal Processing, Automotive Sensor Conditioning, Solar Micro-Inverter Control, Portable Medical Instrumentation.
Brushless DC (BLDC) Motor Control
The DSPIC33FJ32GP202T-I/SS fits BLDC motor control because its 40 MIPS DSP engine executes field-oriented control (FOC) math, including Park and Clarke transforms, in real time while the high-speed PWM module generates complementary six-step or sinusoidal drive signals. The 10-bit ADC samples phase currents synchronously with PWM edges, and up to four high-speed comparators can trip the PWM outputs directly on overcurrent without CPU intervention. In a typical three-phase inverter, the DSC runs a 10 kHz to 20 kHz current loop, leaving headroom for speed and position loops. The trade-off versus a dedicated motor-control ASIC is firmware complexity, but the DSC offers full flexibility in control algorithm and sensorless observer design.
Recommended
Digital Power Supply Control
The DSPIC33FJ32GP202T-I/SS is used in digital power supplies because its 40 MIPS core can close a voltage or current loop at switching frequencies up to several hundred kilohertz, while the high-speed PWM module provides the gate-drive waveform with programmable dead time. The 10-bit ADC and high-speed comparators enable cycle-by-cycle current limiting, and the 32 KB Flash stores compensation coefficients and soft-start profiles. In a synchronous buck or boost converter, the DSC replaces an analog PWM controller plus external compensation network, allowing adaptive control and telemetry. The main design consideration is ADC sampling latency relative to the switching period; at 40 MIPS the core can complete the control law well within a 1 microsecond window.
Recommended
Industrial Sensor Signal Processing
The DSPIC33FJ32GP202T-I/SS suits industrial sensor signal processing because its DSP engine implements FIR and IIR digital filters, RMS computation, and FFT-based spectral analysis on sampled data from the 10-bit ADC. The 2 KB SRAM holds filter state and sample buffers, while the 32 KB Flash stores filter coefficients and calibration tables. In a vibration-monitoring node, the DSC samples an accelerometer at 10 kSPS, applies a band-pass filter, and reports RMS velocity over a fieldbus. The trade-off versus a dedicated DSP is the smaller on-chip memory, which limits FFT size; for 256-point transforms the 2 KB SRAM is adequate, but larger transforms require external memory or a higher-tier dsPIC33E device.
Recommended
Automotive Sensor Conditioning
The DSPIC33FJ32GP202T-I/SS can be used in automotive sensor conditioning when paired with the extended-temperature DSPIC33FJ32GP202T-E/SS variant, which is rated -40 C to +125 C. The DSC linearizes and filters analog sensor outputs from the 10-bit ADC, runs temperature compensation algorithms in the DSP engine, and reports conditioned data over a CAN or LIN interface implemented in firmware. The 40 MIPS throughput allows multiple sensor channels to be processed in a single control cycle. The key design consideration is that the standard I-grade part is only rated to +85 C, so under-hood applications must use the E-grade equivalent to maintain parametric margins.
Recommended
Solar Micro-Inverter Control
The DSPIC33FJ32GP202T-I/SS is applicable to solar micro-inverter control because it combines 40 MIPS DSP throughput for maximum-power-point-tracking (MPPT) algorithms with high-speed PWM for the DC-AC inverter stage. The 10-bit ADC samples panel voltage and current, the DSP engine computes the perturb-and-observe or incremental-conductance MPPT step, and the PWM module drives the H-bridge with synchronized zero-crossing. The 32 KB Flash holds the MPPT state machine and grid-tie protection logic. The trade-off versus a dedicated inverter controller is the need for external gate drivers and isolation, but the DSC provides full algorithmic flexibility for grid-code compliance updates.
Recommended
Portable Medical Instrumentation
The DSPIC33FJ32GP202T-I/SS fits portable medical instrumentation because its 3.0 V to 3.6 V supply and 40 MIPS DSP engine support battery-powered signal acquisition and filtering, such as pulse oximetry or portable ECG front ends. The 10-bit ADC digitizes the sensor signal, the DSP engine applies baseline-removal and band-pass filters, and the 32 KB Flash stores calibration and patient-safety parameters. The 28-lead SSOP package keeps the board area small, which is important for handheld devices. The main design consideration is analog front-end noise: keep the ADC reference decoupled and route the sensor traces away from the PWM outputs to preserve measurement accuracy.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32GP202T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32GP202-I/SS | DSPIC33FJ32GP202T-E/SS | DSPIC33FJ32GP202T-H/SS | DSPIC33FJ32GP202T-I/SO |
|---|---|---|---|---|---|
| Package | 28-lead SSOP | 28-lead SSOP - same | 28-lead SSOP - same | 28-lead SSOP - same | 28-lead SOIC - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Program Memory | 32 KB Flash | 32 KB Flash | 32 KB Flash | 32 KB Flash | 32 KB Flash |
| Data Memory (RAM) | 2 KB SRAM | 2 KB SRAM | 2 KB SRAM | 2 KB SRAM | 2 KB SRAM |
| 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 |
| Temperature Grade | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +150 C (High-temp) | -40 C to +85 C (Industrial) |
| Packaging | Tape & Reel | Tube | Tape & Reel | Tape & Reel | Tape & Reel |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| High-Speed PWM | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Tape-and-reel packaging for automated assembly (vs DSPIC33FJ32GP202-I/SS)
- Industrial temperature grade at standard cost (vs DSPIC33FJ32GP202T-E/SS)
- SSOP footprint versus SOIC alternative (vs DSPIC33FJ32GP202T-I/SO)
- DSP engine versus pure MCU alternatives (vs PIC18F25J10-I/SO)
Design Notes
Keep the ICSP trace between the programming connector and the PGECx/PGEDx pins as short as possible, as recommended in the Microchip dsPIC33FJ32GP202/204 datasheet. Long ICSP traces pick up noise during in-circuit programming and can corrupt Flash writes. Place the 5-pin programming header within 25 mm of the device and route PGEC/PGED as a matched pair with a ground return trace between them.
Decouple every VDD pin (pins 7, 14, and 25 on the 28-lead SSOP) with a 0.1 uF ceramic capacitor placed within 2 mm of the pin, plus one bulk 10 uF capacitor near the package. The dsPIC33F core draws transient current at each instruction fetch; inadequate decoupling causes ADC reference noise and can trigger spurious brown-out resets during 40 MIPS operation.
Route the analog input traces (ANx pins) away from the high-speed PWM outputs and the ICSP clock. The 10-bit ADC on the DSPIC33FJ32GP202T-I/SS has a typical resolution of about 3.2 mV per LSB at a 3.3 V reference, so a few millivolts of coupled switching noise directly degrades measurement accuracy. Use a ground guard trace around sensitive analog inputs and keep the ADC sampling capacitor close to the pin.
Estimated: the DSPIC33FJ32GP202T-I/SS in the 28-lead SSOP has a typical junction-to-ambient thermal resistance on the order of 80-100 C/W depending on copper area. At a 3.3 V supply and roughly 50 mA core current, power dissipation is about 165 mW, giving a junction rise of roughly 13-17 C above ambient. This is well within the +85 C industrial limit for typical ambient conditions, but verify with the actual copper area and airflow.
Do not leave the MCLR pin floating. The DSPIC33FJ32GP202T-I/SS requires MCLR to be pulled high through a resistor (typically 10 kOhm) or driven by a supervisor; a floating MCLR causes random resets. Also confirm the tape-and-reel suffix 'T' when ordering, since the non-T part is supplied in tubes and is not compatible with automated pick-and-place feeders.
Compliance Information
Distributor data lists the DSPIC33FJ32GP202T-I/SS as lead-free and RoHS compliant. The standard I-grade part is not AEC-Q100 qualified; automotive designs should evaluate the extended-temperature variant. REACH, halogen-free, and conflict-minerals status were not stated in the provided data.
