DSPIC33FJ32GP204T-I/PT - 16-bit 40 MIPS DSC 32KB Flash | Microchip
MPN: DSPIC33FJ32GP204T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.85 | $48.50 |
| 100 | $4.12 | $412.00 |
| 500 | $3.78 | $1,890.00 |
| 1,000 | $3.45 | $3,450.00 |
DSPIC33FJ32GP204T-I/PT Overview
A digital signal controller combines the computational engine of a microcontroller (MCU) with the math acceleration of a digital signal processor (DSP). In the power-management hierarchy, the dsPIC33F family sits alongside general-purpose 16-bit MCUs such as the PIC24F, but adds DSP-class multiply-accumulate instructions and high-speed peripherals, making it a member of the broader embedded-processor category that spans MCU, DSC, and DSP product types.
Key differentiating features include the 16-bit dsPIC core running at 40 MIPS (40 MHz clock), up to four high-speed comparators with direct PWM connection, high-speed PWM outputs, an analog-to-digital converter, and 35 general-purpose I/O lines. Communication options cover I2C, SPI, UART/USART, IrDA, and LINbus, enabling straightforward integration into industrial networks.
Architecturally, the device uses a modified Harvard pipeline with dedicated DSP multiply-accumulate hardware, Flash program memory organized as 32K x 8 (11K x 24 instruction words), and a supply range of 3.0V to 3.6V. The -I suffix denotes the industrial operating temperature range of -40C to +85C, and the /PT suffix identifies the lead-free 44-pin TQFP tape-and-reel packaging.
Typical applications include digital power supplies and power-factor-correction stages exploiting the high-speed PWM and comparators, motor control drives, sensor acquisition and filtering systems, and embedded control in industrial automation where 16-bit math and DSP instructions shorten control-loop execution time.
Design consideration: guarantee a clean, decoupled 3.3V rail, since the analog peripherals (ADC, comparators) share AVDD/AVSS domains that are sensitive to switching noise from the PWM outputs.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes beyond what the manufacturer datasheet alone provides.
Drop-in alternatives for DSPIC33FJ32GP204T-I/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 DSPIC33FJ32GP204T-I/PT (same form factor and footprint) — differing in Core Architecture, Package, High-Speed Comparators, I/O Ports, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32GP204-I/PT
✅ Drop-In✓ In Stock
$3.78 / Unit
View Datasheet →DSPIC33FJ32GP204-E/PT
✅ Drop-In✓ In Stock
$3.15 / Unit
View Datasheet →DSPIC33FJ32GP204-H/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ16GP304-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32GP304-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.29 / Unit
View Datasheet →DSPIC33FJ32GP204T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC |
| Maximum Clock Speed | 40 MHz |
| Performance | 40 MIPS |
| Program Memory Size | 32 KB (32K x 8) Flash |
| RAM Size | 2 KB SRAM |
| Supply Voltage Range | 3 V to 3.6 V |
| I/O Ports | 35 |
| Communication Interfaces | I2C, SPI, UART/USART, IrDA, LINbus |
| High-Speed Comparators | Up to 4 |
| Timers | 5 |
| External Interrupts | 3 |
| Package | 44-TQFP (10 x 10 mm, 1 mm height) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40C to +85C (Industrial, -I) |
| ROM Type | Flash |
| Lead Free | Yes |
| Packaging | Tape & Reel (T suffix) |
DSPIC33FJ32GP204T-I/PT 44-tqfp (10 x 10 mm, 1 mm height) Pin Configuration Guide
Pin configuration for DSPIC33FJ32GP204T-I/PT (44-tqfp (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 DSPIC33FJ32GP204T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32GP204T-I/PT is suitable for 6 applications: Digital Power Supply Control, Motor Control Drives, Sensor Signal Acquisition and Filtering, Industrial Automation and Control Panels, Embedded Systems Education and Prototyping, Lighting and Power Conversion Ballasts.
Digital Power Supply Control
The DSPIC33FJ32GP204T-I/PT is well suited to digital power conversion because Microchip equips this family with high-speed PWM outputs, up to four high-speed comparators with direct PWM connection, and an ADC - the complete peripheral chain for a voltage-mode or current-mode control loop. The 40 MIPS 16-bit dsPIC core executes PID compensation and 16-bit filter mathematics using DSP multiply-accumulate instructions, allowing loop update rates adequate for converters switching in the hundreds of kilohertz. The controller sits between the output sense divider and the PWM gate-driver interface, replacing an analog error amplifier with programmable compensation. Trade-off: firmware-based control requires careful ISR latency budgeting and brown-out-safe code design, but delivers adaptive compensation and programmable protection thresholds impossible with fixed analog control.
Recommended
Motor Control Drives
Three-phase and DC motor drives benefit directly from this DSC's combination of high-speed PWM with configurable dead-time, fast analog comparators for cycle-by-cycle overcurrent protection, and DSP math for FOC (field-oriented control) transforms. With 35 I/O lines, the 44-pin TQFP DSPIC33FJ32GP204T-I/PT has enough pins for a six-PWM inverter bridge, quadrature encoder feedback, UART-based host communication, and fault inputs simultaneously. The 40 MIPS core completes Park/Clarke transforms and PI current loops within the PWM period at typical switching frequencies. The -40C to +85C industrial rating covers factory-floor ambient conditions. Design consideration: route the comparator sense inputs away from PWM traces to prevent false overcurrent trips, and use the peripheral pin-select capability to optimize PCB escape routing.
Recommended
Sensor Signal Acquisition and Filtering
The on-chip ADC combined with DSP multiply-accumulate instructions makes this controller an efficient sensor-conditioning node: raw transducer signals are sampled, then filtered (FIR/IIR) in firmware, removing the need for external analog filter stages. The 2KB SRAM accommodates filter delay lines and a small communication stack, while the 32KB Flash holds coefficients and application logic. Interfaces include SPI for high-speed external converters, I2C for digital sensors, and UART for telemetry, plus IrDA support for contactless data taps. The 3.0V to 3.6V supply matches common 3.3V analog rails, simplifying mixed-signal integration. The industrial temperature range (-40C to +85C) and lead-free TQFP package suit instrumentation deployed across factory environments, and the high-speed comparators can implement zero-crossing or threshold alarms independent of software latency.
Recommended
Industrial Automation and Control Panels
In factory automation, the DSPIC33FJ32GP204T-I/PT acts as a compact control node with UART/USART, I2C, SPI, and LINbus connectivity covering PLC backplanes, sensor buses, and automotive-derived LIN networks alike. The five timers support coordinated sequencing (delays, pulse trains, event counting), three external interrupts handle safety inputs with fast response, and 35 I/O directly drive relays, indicators, and read switches. At 40 MIPS there is headroom for protocol stacks plus application logic within the 32KB Flash, and the -40C to +85C rating tolerates panel ambient extremes near heaters or outdoors. The 44-pin TQFP offers a hand-assemblable 0.8 mm pitch compromise between density and reworkability. Budget 3.3V rail tolerance strictly (3.0V-3.6V) and provide local bulk plus 0.1uF decoupling at each supply pair.
Recommended
Embedded Systems Education and Prototyping
The dsPIC33FJ32GP204 family is explicitly supported by Microchip's Explorer 16/32 Development Board through a Plug-In Module (PIM) - Microchip publishes a dedicated dsPIC33FJ32GP204 PIM Information Sheet (70315A) for this purpose. Students and prototypers gain access to the PICtail Plus daughter-card ecosystem for adding displays, audio, and communication peripherals without designing carrier hardware. The free MPLAB X IDE plus compiler options (XC16) complete the low-cost toolchain, and the device's 3.3V single-supply operation simplifies breadboard power design despite the surface-mount TQFP - use a PIM adapter for socketed experiments. The blend of MCU-style peripherals and DSP instructions makes it a practical teaching platform for control-systems and signal-processing coursework, with industrial-grade -40C to +85C silicon identical to production hardware.
Recommended
Lighting and Power Conversion Ballasts
Electronic ballasts and LED drivers exploit the same peripheral set as digital power supplies: high-speed PWM drives half-bridge or full-bridge stages, the on-chip comparators provide fast fault detection on lamp/LED current, and the ADC closes dimming and regulation loops in firmware. The DSPIC33FJ32GP204T-I/PT's 40 MIPS core can implement soft-start profiles, burst/phase dimming schemes, and PFC pre-regulator coordination in a single device across its 35 I/O. The 3.0V to 3.6V supply allows direct connection to an isolated auxiliary winding through a small LDO. Firmware-defined behavior enables product variants (dimmable/non-dimmable, different lamp types) from one PCB. Attention point: the industrial temperature range must be checked against ballast enclosure temperatures, and the -E extended variant offers margin when internal ambient exceeds +85C.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32GP204T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32GP204-I/PT | DSPIC33FJ32GP204-E/PT | DSPIC33FJ32GP204-H/PT | DSPIC33FJ16GP304-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Flash Program Memory | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +125C (Extended) | -40C to +125C (High-reliability grade) | -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 |
Key Differentiators
- Highest memory option in the 44-pin GP204 family (vs DSPIC33FJ16GP304-I/PT)
- Extended-temperature upgrade path (vs DSPIC33FJ32GP204-I/PT)
- High-speed comparators with direct PWM connection (vs DSPIC33FJ32GP202T-I/SS)
Design Notes
The device is specified at 3.0V to 3.6V with a 3.3V nominal rail. Provide local 0.1uF ceramic decoupling at every VDD/VSS pair plus 4.7uF-10uF bulk capacitance near the 44-TQFP. Keep AVDD on its own filtered supply node (ferrite bead plus 0.1uF and 1uF) because ADC accuracy and comparator thresholds depend on analog rail cleanliness, especially when high-speed PWM outputs switch simultaneously. Estimated: at 40 MIPS with typical I/O loading, core current is in the tens of milliamps - verify exact ICC against datasheet 70290J electrical tables for your supply budget.
The 44-pin TQFP uses a 0.8 mm lead pitch; design lands 0.45-0.5 mm wide with standard TQFP-44 footprints and solder-mask defined pads for reliable reflow. Because this family supports peripheral pin select on many RPn pins, plan the PCB with remappable signal assignment in mind so UART, SPI, and PWM outputs can be repositioned in later board revisions without respinning traces. Place the crystal or internal-oscillator launch components close to OSC1/OSC2, and keep MCLR with its 10k pull-up accessible for ICSP programming headers on production panels.
Do not power the part above 3.6V - unlike 5V-tolerant PIC18 parts, the dsPIC33FJ is a strict 3.3V device and 5V I/O will damage it; use level shifters or series resistors with clamping for 5V interfaces. Configure configuration words (FOSC, FWDT, watch-dog) in code before first programming, since default oscillator settings may leave the device dead at reset. For digital power designs, budget ISR execution time against the PWM period and enable the comparators in hardware-bypass mode for cycle-by-cycle current limiting rather than relying on ADC interrupt latency.
Compliance Information
Verified web data (digchip) explicitly describes the package as lead-free plastic TQFP. Formal REACH, halogen-free and conflict-minerals declarations must be obtained from Microchip compliance documentation.
