DSPIC33FJ32GP204-E/PT - 16-bit DSC, 40MHz, 32KB Flash | Microchip
MPN: DSPIC33FJ32GP204-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.57 | $4.57 |
| 10 | $4.3 | $43.00 |
| 25 | $4.02 | $100.50 |
| 100 | $3.7 | $370.00 |
| 1,000 | $3.15 | $3,150.00 |
DSPIC33FJ32GP204-E/PT Overview
A digital signal controller is a hybrid device that merges the deterministic control flow of a microcontroller with the mathematical throughput of a digital signal processor. Within the power-management and embedded-systems hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP, offering single-cycle multiply-accumulate (MAC) instructions alongside conventional microcontroller peripherals, making it a natural fit for motor control, digital power conversion, and sensor signal processing.
Key features include 40 MIPS performance at 3.3V operation, up to four high-speed comparators with direct output connections, a high-speed PWM module, a multi-channel 10-bit/12-bit ADC architecture, five timers, three external interrupt sources, and IEEE 1149.2-compatible JTAG boundary scan. In-circuit serial programming (ICSP) and in-application programming allow field firmware updates without removing the device from the PCB.
Technically, the dsPIC33FJ family uses an enhanced 16-bit architecture with two program and two complex data breakpoints for advanced debugging, supporting hardware trace and run-time watch. The 32KB Flash is organized for efficient DSP loop execution, and the Harvard-style bus structure sustains single-cycle MAC throughput.
Typical applications include digital power supplies (power factor correction, LLC converters), brushless DC and PMSM motor control, sensor conditioning with the on-chip comparators, and general embedded control where DSP math accelerates filtering algorithms.
A key design consideration is supply decoupling: every VDD/VSS pair requires a 0.1uF ceramic capacitor placed within 2mm of the pin, and the 44-pin TQFP thermal pad routing to a ground pour keeps junction temperature within the -40C to +125C extended rating.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the Microchip datasheet.
Pricing data is referenced as of 2026-09-27 from LCSC, DigiKey, and Octopart listings.
Drop-in alternatives for DSPIC33FJ32GP204-E/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 DSPIC33FJ32GP204-E/PT (same form factor and footprint) — differing in Core Architecture, RoHS Status, ADC, Operating Temperature, PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32GP204-I/PT
✅ Drop-In✓ In Stock
$3.78 / Unit
View Datasheet →DSPIC33FJ32GP204-H/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ16GP304-I/ML
✅ Drop-In✓ In Stock
$2.95 / Unit
View Datasheet →DSPIC33FJ32GP204-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33 RISC |
| CPU Speed | 40 MIPS (40 MHz max clock) |
| Program Memory | 32 KB Flash |
| SRAM | 2 KB |
| Supply Voltage | 3.0 V to 3.6 V |
| I/O Ports | 35 I/O |
| Timers | 5 |
| External Interrupts | 3 |
| High-Speed Comparators | Up to 4 |
| PWM | High-Speed PWM module |
| JTAG | IEEE 1149.2-compatible boundary scan |
| Programming | In-circuit and in-application programming (ICSP) |
| Debug Breakpoints | 2 program and 2 complex data breakpoints |
| Package | 44-pin TQFP (PT), 10 x 10 mm, 1 mm height |
| Temperature Grade | Extended (-40C to +125C) |
| Mounting Type | Surface Mount |
| Lead Finish | Lead free |
| RoHS Status | Compliant |
| Lifecycle Status | Active |
DSPIC33FJ32GP204-E/PT 44-pin tqfp (pt), 10 x 10 mm, 1 mm height Pin Configuration Guide
Pin configuration for DSPIC33FJ32GP204-E/PT (44-pin tqfp (pt), 10 x 10 mm, 1 mm height 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 DSPIC33FJ32GP204-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32GP204-E/PT is suitable for 6 applications: Digital Power Supplies and PFC, BLDC and PMSM Motor Control, Sensor Signal Conditioning, Audio and Embedded DSP Processing, Industrial Automation and Control Nodes, Battery-Powered Portable Instruments.
Digital Power Supplies and PFC
The DSPIC33FJ32GP204-E/PT fits digital power conversion because its high-speed PWM module generates precisely timed gate waveforms while the on-chip high-speed comparators provide cycle-by-cycle current limiting without CPU latency - critical for boost PFC and LLC stages switching at 100 kHz to 500 kHz. The 40 MIPS core executes PI and predictive control loops with single-cycle MAC instructions, keeping loop latencies in the microsecond range. A typical topology places the DSC between the voltage/current sense dividers and the MOSFET gate drivers, sampling with the internal ADC and closing current loops in firmware. The 3.0V to 3.6V rail simplifies isolated-supply design, and the extended -40C to +125C grade tolerates enclosure heat near power stages.
Recommended
BLDC and PMSM Motor Control
Sensorless and sensored brushless DC and PMSM drives benefit directly from the GP204's peripheral set: high-speed PWM with complementary outputs drives the three-phase inverter, up to four high-speed comparators with direct connections implement hardware overcurrent trip, and the 40 MIPS DSP core runs field-oriented control (Clarke/Park transforms, PI current loops) in real time. Because all three functions are on-chip, the fault path from comparator to PWM shutdown bypasses the CPU entirely, achieving protection speeds firmware loops cannot match. The 2KB SRAM accommodates FOC state variables plus commutation tables within the 32KB Flash. The extended temperature grade suits motor-adjacent mounting where enclosure temperatures reach 105C to 125C in industrial drives and pumps.
Recommended
Sensor Signal Conditioning
Analog sensor front ends - thermocouples, pressure bridges, and current shunts - use the GP204's comparators and ADC for thresholding and conversion, while the DSP core applies digital filtering (IIR/FIR) using single-cycle MAC instructions. With 35 I/O available, the device can simultaneously drive the excitation, control an analog mux bank, and communicate results over UART/SPI/I2C to a host. The 44-pin TQFP's 10x10mm footprint fits dense acquisition boards, and in-circuit programming allows calibration coefficients to be updated in the field via in-application programming. Extended -40C to +125C operation supports industrial and automotive-adjacent sensor modules where ambient conditions in engine bays or factory floors exceed industrial-grade limits.
Recommended
Audio and Embedded DSP Processing
The 16-bit DSP core with hardware MAC acceleration makes the GP204 practical for embedded audio tasks such as active crossovers, dynamic range compression, and simple room-equalization filters at moderate sample rates. Its deterministic interrupt latency keeps audio buffering simple compared to cache-based MCUs, and the JTAG boundary scan (IEEE 1149.2) eases production testing of audio I/O boards. The 3.3V operation interfaces cleanly with audio codecs and op-amp stages running from the same rail. With 32KB Flash, a complete filter chain plus UART/I2C control interface fits on-chip, and the extended temperature rating allows amplifer-enclosure mounting where internal temperatures approach 100C near power output stages.
Recommended
Industrial Automation and Control Nodes
Factory automation nodes need robust I/O, precise timing, and long-term availability - the GP204 delivers 35 I/O, five timers, three external interrupt sources, and an active lifecycle status confirmed across Microchip and distributor data. Typical roles include PLC sub-modules, actuator controllers, and protocol bridges, where the 40 MIPS core handles CRC-checked communication while timers generate hardware-timed pulses independent of software jitter. The 44-pin TQFP with JTAG boundary scan supports automated in-circuit test on production lines, reducing fixture cost. Extended -40C to +125C grading tolerates uncooled control cabinets, and in-application programming lets field firmware be updated over the existing communication bus without physical access.
Recommended
Battery-Powered Portable Instruments
Handheld instruments - meters, testers, and dataloggers - use the GP204's 3.0V to 3.6V single-rail operation, which maps directly onto a single lithium-ion cell via a small LDO, and its 16-bit DSP core processes measurement math (RMS computation, FFT-based spectrum analysis) at 40 MIPS for responsive user feedback. The 44-pin TQFP's 10x10mm, 1mm-height profile fits slim enclosures, and 35 I/O drive displays, keypads, and sensor interfaces simultaneously. Hardware breakpoints and JTAG trace shorten firmware debugging during instrument development. The extended temperature grade adds margin for instruments left in vehicles or outdoor environments, where internal temperatures can reach 60C to 85C in direct sunlight.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32GP204-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32GP204-I/PT | DSPIC33FJ32GP204-H/PT | DSPIC33FJ16GP304-I/ML |
|---|---|---|---|---|
| Package | 44-pin TQFP (PT), 10 x 10 mm | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP family - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 16 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| 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 |
| Temperature Range | -40C to +125C (extended) | -40C to +85C (industrial) | -H grade (see datasheet) | -40C to +85C (industrial) |
| Lifecycle Status | Active | Active | Active | Active |
Key Differentiators
- Extended -40C to +125C temperature grade in the standard footprint (vs DSPIC33FJ32GP204-I/PT)
- Twice the program memory of the same-package GP304 family member (vs DSPIC33FJ16GP304-I/ML)
- Integrated high-speed comparators with direct PWM fault connection (vs Generic 16-bit MCUs (non-DSP class))
Design Notes
Decouple every VDD/VSS pin pair of the 44-pin TQFP with a 0.1uF ceramic capacitor placed within 2mm of the pins, and add one bulk 4.7uF to 10uF capacitor near the power entry. The Microchip family datasheet (70290J) also recommends connecting all VDD pins and all VSS pins to their respective rails - never leave a supply pin floating. Provide a low-inductance ground pour on the layer adjacent to the TQFP, and bring out the MCLR, PGD, and PGC programming pins to a 5-pin header for ICSP access.
Do not exceed the 3.6V maximum supply - there is no 5V-tolerant operation on the dsPIC33FJ GP204 family; level-shift any 5V signal sources. When PGD/PGC pins are shared with application I/O, insert series resistors (typically 1k ohm to 4.7k ohm) per Microchip programming guidelines so the programmer can override external loads. Comparator outputs used for hardware overcurrent trip must route directly to the PWM fault inputs in hardware; polling them in firmware defeats the cycle-by-cycle protection these peripherals were designed to provide.
Estimated: the 44-pin TQFP on a standard 4-layer board exhibits roughly 40-60 C/W theta_JA (verify against the Microchip package outline and thermal data pages for the exact PT package). At 3.3V and a typical active current in the tens of milliamps, internal dissipation stays well below 200 mW, so the -E extended grade (-40C to +125C) provides ample margin without a heatsink. Reserve thermal attention for designs that drive high continuous source/sink currents on many I/O pins simultaneously, where I/O dissipation adds to core power.
Keep the high-speed PWM outputs and any switched-power return paths away from the analog ADC input traces; route analog sense lines on the inner layer guarded by ground. The oscillator circuit (crystal plus load capacitors) should sit close to the OSC pins with a guard ring to ground. JTAG boundary scan availability (IEEE 1149.2-compatible) makes production test straightforward - define the JTAG header footprint early in layout so in-circuit test fixtures can access TDI, TDO, TMS, and TCK.
Compliance Information
FindIC specification describes the package as lead-free plastic TQFP (S-PQFP-G44). Formal REACH and conflict-minerals declarations must be obtained from Microchip compliance documentation.
