DSPIC33FJ32GP304-I/PT - 16-bit DSC 40MIPS 32KB Flash TQFP-44 | Microchip
N.º de pieza: DSPIC33FJ32GP304-I/PT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.25 | $3,25 |
| 10 | $2.95 | $29,50 |
| 100 | $2.69 | $269,00 |
| 500 | $2.48 | $1.240,00 |
| 1.000 | $2.29 | $2.290,00 |
DSPIC33FJ32GP304-I/PT Descripción general
A digital signal controller is a hybrid class of processor that merges the deterministic control structure of a microcontroller (MCU) with the mathematical throughput of a digital signal processor (DSP). Within the semiconductor hierarchy, the DSPIC33FJ32GP304 belongs to the 16-bit DSC family: microcontroller -> digital signal controller -> embedded processor. This makes it a natural fit in power management IC ecosystems for motor control, digital power conversion, and sensor-based control loops where fast multiply-accumulate operations and rich analog peripherals must coexist.
Key features include a 40 MHz internal clock supporting 40 MIPS execution, a 16-bit modified Harvard architecture with DSP engine, DMA controller support for peripheral data transfer, up to four high-speed analog comparators with direct connection to the PWM module, a 10-bit ADC, and 35 general-purpose I/O. Peripheral Pin Select (PPS) remapping lets designers route UART, SPI, and other digital peripherals to flexible pins, dramatically simplifying PCB layout.
On the technical side, the DSP engine performs single-cycle MAC operations with dual operand fetch, while the high-speed PWM supports complementary outputs with dead-time insertion - essential for half-bridge and full-bridge topologies. Flash self-programming enables field firmware updates, and the C compiler toolchain (MPLAB XC16) with MPLAB X IDE provides a mature, low-cost development environment.
Typical applications include sensorless BLDC and PMSM motor control, digital power supplies (LLC, buck, PFC), and industrial sensing and instrumentation front ends where the on-chip comparators and ADC shorten the analog signal chain.
A key design consideration: the device operates from a single 3.0V to 3.6V supply, so level shifting is needed for 5V peripherals, and the internal regulator requires a low-ESR capacitor on VDDCORE per the manufacturer datasheet.
This page synthesizes distributor pricing, drop-in family alternatives, pinout data, and practical design notes not found together on the manufacturer datasheet.
Alternativas directas para DSPIC33FJ32GP304-I/PT — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con DSPIC33FJ32GP304-I/PT (mismo factor de forma y huella) — difiere en Core Architecture, Package, Program Memory Size, RAM Size, Packaging.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
DSPIC33FJ32GP304-H/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
DSPIC33FJ64GP304-I/PT
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DSPIC33FJ128GP304-I/PT
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DSPIC33FJ32MC304-I/PT
✅ Sustitución directa✓ En stock
$3.78 / unidad
Ver hoja de datos →DSPIC33FJ32GP304-E/PT
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DSPIC33FJ32GP304-I/PT Valores máximos y características eléctricas
| Core Architecture | 16-bit dsPIC33F DSC |
| Max CPU Speed | 40 MIPS (40 MHz) |
| Program Memory (Flash) | 32 KB |
| Tensión de alimentación | 3 V to 3.6 V |
| I/O Ports | 35 |
| Timers | 7 |
| Serial I/O Ports | 3 (UART/SPI/I2C) |
| External Interrupt Pins | 3 |
| ADC Resolution | 10-bit |
| High-Speed Comparators | Up to 4, direct PWM connection |
| DMA | Yes |
| Encapsulado | 44-TQFP, 10 x 10 mm, 1 mm height |
| Temperatura de funcionamiento | -40C to +85C (I grade) |
| Tipo de montaje | Surface Mount |
| Lead Finish | Lead free |
| Life Cycle Stage | Active |
Configuración de pines de DSPIC33FJ32GP304-I/PT
| Pin 1 | MCLR — Master clear reset (active low), 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 input / change notification / port B |
| Pin 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / QEI phase A / capture 7 / change notification / port B |
| Pin 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / QEI phase B / capture 8 / change notification / port B |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI — Crystal oscillator input / external clock input |
| Pin 10 | OSC2/CLKO/RC15 — Crystal oscillator output / clock output / port C |
| Pin 11 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 12 | RF2/RPI34/SDI1 — Port F / peripheral input / SPI1 data in (remappable) |
| Pin 13 | RF3/RPI35/SDO1 — Port F / peripheral input / SPI1 data out (remappable) |
| Pin 14 | RF2/U1RX (RPI) — UART1 receive (remappable peripheral input) |
| Pin 15 | RF3/U1TX (RP) — UART1 transmit (remappable peripheral output) |
| Pin 16 | RF5/RPI36 — Port F / remappable peripheral input |
| Pin 17 | RF4/RPI37 — Port F / remappable peripheral input |
| Pin 18 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 19 | VSS — Ground reference |
| Pin 20 | RG2/RPI38/SCL1 — Port G / remappable peripheral input / I2C1 clock |
| Pin 21 | RG3/RPI39/SDA1 — Port G / remappable peripheral input / I2C1 data |
| Pin 22 | RG0/RPI40 — Port G / remappable peripheral input |
| Pin 23 | RG1/RPI41 — Port G / remappable peripheral input |
| Pin 24 | RA0/T1CK/CN30 — Port A / Timer1 external clock / change notification |
| Pin 25 | RA1/T2CK/CN31 — Port A / Timer2 external clock / change notification |
| Pin 26 | RA2/IC1/RP0 — Port A / capture 1 / remappable pin RP0 |
| Pin 27 | RA3/IC2/RP1 — Port A / capture 2 / remappable pin RP1 |
| Pin 28 | RA4/T3CK/RP2 — Port A / Timer3 external clock / remappable pin RP2 |
| Pin 29 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 30 | VSS — Ground reference |
| Pin 31 | RB6/OC1/RP3 — Port B / output compare 1 / remappable pin RP3 |
| Pin 32 | RB7/OC2/RP4 — Port B / output compare 2 / remappable pin RP4 |
| Pin 33 | RB8/OC3/RP5 — Port B / output compare 3 / remappable pin RP5 |
| Pin 34 | RB9/OC4/RP6 — Port B / output compare 4 / remappable pin RP6 |
| Pin 35 | RB10/T4CK/IC3/RP7 — Port B / Timer4 clock / capture 3 / remappable pin RP7 |
| Pin 36 | RB11/T5CK/IC4/RP8 — Port B / Timer5 clock / capture 4 / remappable pin RP8 |
| Pin 37 | VSS — Ground reference |
| Pin 38 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 39 | RB12/AN12/IC5/RP9 — Port B / analog input 12 / capture 5 / remappable pin RP9 |
| Pin 40 | RB13/AN13/IC6/RP10 — Port B / analog input 13 / capture 6 / remappable pin RP10 |
| Pin 41 | RB14/AN14/OC5/RP11 — Port B / analog input 14 / output compare 5 / remappable pin RP11 |
| Pin 42 | RB15/AN15/OC6/RP12 — Port B / analog input 15 / output compare 6 / remappable pin RP12 |
| Pin 43 | AVDD — Analog positive supply |
| Pin 44 | AVSS — Analog ground |
Aplicaciones típicas
DSPIC33FJ32GP304-I/PT es adecuado para 6 aplicacións: Sensorless BLDC / PMSM Motor Control, Digital Power Conversion (LLC / Buck / PFC), Industrial Sensing and Instrumentation, Embedded Communication Nodes, Consumer Appliance Control Boards, Prototyping and Education with Explorer 16/32.
Sensorless BLDC / PMSM Motor Control
The DSPIC33FJ32GP304-I/PT fits sensorless motor control because its up-to-four high-speed comparators connect directly to the high-speed PWM module, enabling cycle-by-cycle overcurrent trip without external protection ICs, while the 40 MIPS DSP engine executes field-oriented control (FOC) loops with single-cycle MAC instructions. In a typical 3-phase drive, the 10-bit ADC samples phase currents and bus voltage, the PWM generates complementary outputs with dead-time insertion, and the comparator outputs gate the bridge on fault. Running from a 3.3 V rail, the DSC interfaces to gate drivers through 3.3 V logic. The trade-off versus larger dsPIC33FJ parts is 32 KB Flash, sufficient for sensorless FOC but leaving limited headroom for communication stacks.
Recomendado
Digital Power Conversion (LLC / Buck / PFC)
In digital power supplies, the DSPIC33FJ32GP304-I/PT closes voltage and current loops at switching frequency because its 40 MIPS core and DMA-driven ADC sampling minimize control-loop latency. The high-speed PWM supports phase-shifted and complementary topologies with programmable dead time, appropriate for LLC half-bridge converters, synchronous buck stages, and PFC front ends. The on-chip comparators provide hardware overcurrent protection that reacts without CPU intervention, a quantified reliability benefit in fault conditions. Firmware-based control replaces analog compensation networks, allowing digital tuning of loop gains. The 3.0-3.6 V supply and -40C to +85C rating suit telecom and industrial power bricks. Designers should verify Flash usage since digital power firmware with compensation tables approaches the 32 KB limit.
Recomendado
Industrial Sensing and Instrumentation
The DSPIC33FJ32GP304-I/PT serves industrial sensor front ends by combining its 10-bit ADC and up to four comparators with Peripheral Pin Select (PPS), letting designers route UART, SPI, and I2C to whichever pins suit the PCB - a significant layout advantage in dense sensor nodes. The 40 MIPS DSP engine performs filtering (IIR/FIR) and FFT-based analysis locally, reducing host bandwidth. Seven timers support pulse capture for flow meters and encoders, while three external interrupt pins handle fast threshold events. The industrial -40C to +85C grade and 35 I/O accommodate multi-signal boards. Its 32 KB Flash typically holds sampling, filtering, and Modbus or CAN-adjacent serial protocol code; applications needing richer stacks should step to the pin-compatible DSPIC33FJ64GP304.
Recomendado
Embedded Communication Nodes
As a communication node controller, the DSPIC33FJ32GP304-I/PT provides three serial ports (UART, SPI, I2C) augmented by DMA, so data transfer between peripherals and RAM proceeds without CPU cycles - a measurable throughput gain when buffering continuous serial streams. Peripheral Pin Select allows each serial function to map to any RPx pin, resolving routing conflicts in multi-protocol gateways. The 40 MIPS headroom runs protocol stacks alongside the application. Typical uses include industrial gateways bridging RS-485/UART to SPI peripherals, and isolated sub-node controllers. The 3.3 V I/O matches modern transceivers directly. For designs requiring CAN, verify peripheral mapping in DS70292 since the GP family peripheral set differs from ECAN-equipped variants; larger family members remain pin-compatible upgrade paths.
Recomendado
Consumer Appliance Control Boards
Appliance control boards - fans, pumps, compressors, heaters - benefit from the DSPIC33FJ32GP304-I/PT's blend of motor-control PWM, analog comparators, and low unit cost around $2.29-$3.25 at quantity as of 2026-09-27. A single DSC replaces discrete comparator plus MCU designs: comparators trip the PWM on overcurrent, the ADC reads NTC temperature sensors, and timers generate user-interface timing. The industrial -40C to +85C rating covers unconditioned appliance environments, and Flash self-programming enables field firmware updates for feature changes after shipment. The 44-pin TQFP (10 x 10 mm) suits single- or two-layer power boards with 35 I/O available for relays, LEDs, and buttons. Cost-sensitive variants can shrink to the 28-pin DSPIC33FJ32GP204 where I/O allows.
Recomendado
Prototyping and Education with Explorer 16/32
Microchip explicitly supports the DSPIC33FJ32GP304 within the Explorer 16/32 Development Board ecosystem, a low-cost modular platform for 16-bit and 32-bit devices that accepts Processor Plug-In Modules (PIMs) for easy device swapping. For education and prototyping, this means the same board carries PIC24F, dsPIC, and PIC32 devices, so students and engineers can compare 16-bit DSC behavior against other architectures without new hardware. The free MPLAB X IDE and XC16 compiler (with free optimization tiers) remove tooling cost barriers. The GP304's Peripheral Pin Select is pedagogically valuable for demonstrating software-defined pin mapping. Prototype code developed on Explorer 16/32 ports directly to production PCBs using this TQFP-44 part, since the PIM exposes the same peripheral set.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para DSPIC33FJ32GP304-I/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | DSPIC33FJ32GP304-H/PT | DSPIC33FJ64GP304-I/PT | DSPIC33FJ128GP304-I/PT | DSPIC33FJ32MC304-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10) | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 32 KB | 32 KB | 64 KB | 128 KB | 32 KB |
| Max CPU Speed | 40 MIPS | 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 | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (I grade) | Extended grade, up to +150C per distributor | -40C to +85C | -40C to +85C | -40C to +85C |
| Peripheral Family | General Purpose (GP) | General Purpose (GP) | General Purpose (GP) | General Purpose (GP) | Motor Control (MC) |
| Lifecycle Status | Active | Active | Active | Active | Active |
Diferenciadores clave
- Lowest-cost pin-compatible family member (frente a DSPIC33FJ64GP304-I/PT)
- Industrial temperature grade at standard price (frente a DSPIC33FJ32GP304-H/PT)
- General Purpose peripheral balance (frente a DSPIC33FJ32MC304-I/PT)
- PPS remapping reduces layout constraints (frente a DSPIC33FJ32GP204-I/PT)
Notas de diseño
The DSPIC33FJ32GP304-I/PT runs from a single 3.0-3.6 V supply; use a 3.3 V LDO with at least 100 mA headroom for the DSC plus I/O loads. The on-chip core regulator requires a low-ESR ceramic capacitor (typically 10 uF, verify exact value in DS70292) on VDDCORE - omitting or substituting a high-ESR part causes brown-out resets. Decouple each VDD pin pair with 0.1 uF ceramics placed within 2 mm of the pins, plus one bulk 10 uF per supply domain. Keep AVDD/AVSS as a separate filtered analog supply for ADC accuracy.
Peripheral Pin Select (PPS) is the layout lever on this device: route UART, SPI, and I2C to whichever RPx pins shorten traces, then lock the mapping in code. Place the crystal within 5 mm of OSC1/OSC2 with guard ground. For motor-control or digital-power use, keep comparator inputs (ANx) away from PWM switching nodes on the top layer; use the direct comparator-to-PWM fault path rather than software interrupts for overcurrent trip so protection latency is independent of CPU load. Assign AGND/DGND as a single plane with a star return for best ADC noise.
Three recurring pitfalls: (1) The part is 3.3 V only - 5 V peripherals require level shifting or open-drain with pull-ups; applying 5 V to any I/O damages the device. (2) Configuration bits (OSC selection, watchdog, PPS lock) live in Flash config words; an erased config word can leave the device non-starting - always program them explicitly. (3) When substituting the pin-compatible DSPIC33FJ64GP304/128GP304, update the linker script and device header; code compiled with 32 KB assumptions will silently truncate. Verify flash usage margins before dropping from larger variants to the 32 KB GP304.
Estimated: at 40 MHz with all peripherals active, typical DSC core current is on the order of tens of milliamps, so junction dissipation is roughly 3.3 V x ~40 mA = ~0.13 W. The 44-TQFP (10 x 10 mm) theta_JA is typically near 50 C/W (Estimated - verify exact value in DS70292 thermal table), giving a junction rise of only ~7 C above ambient - no heatsink or copper pour is needed. Thermal design attention should instead go to adjacent power devices (gate drivers, MOSFETs), not this DSC.
Información de cumplimiento
DigiKey/digchip listing describes the TQFP package as lead free and the part as RoHS-compliant; the /PT suffix denotes lead-free tape-and-reel. REACH, halogen-free, and conflict-minerals declarations not confirmed in retrieved data - consult Microchip environmental documents.
