DSPIC33FJ32MC302-I/SO - 16-bit DSC 40 MIPS 32KB Flash | Microchip
N.º de pieza: DSPIC33FJ32MC302-I/SO ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $4.95 | $4,95 |
| 10 | $4.49 | $44,90 |
| 100 | $4.1 | $410,00 |
| 500 | $3.75 | $1.875,00 |
| 1.000 | $3.4 | $3.400,00 |
DSPIC33FJ32MC302-I/SO Descripción general
A digital signal controller combines the deterministic control structure of a microcontroller with the numeric throughput of a DSP. Within the power-management hierarchy of embedded processors, the dsPIC33F family sits between general-purpose MCUs and dedicated DSPs, pairing a modified Harvard 16-bit core with DSP-engine instructions, high-speed PWM peripherals and advanced analog blocks on one die.
Key features include the 40 MIPS core with 16 sixteen-bit working registers, a motor-control PWM module with center-aligned and complementary outputs, a high-speed 10-bit ADC, up to four analog comparators with direct PWM trip connections, and DMA support as noted by distributor listings (28LD 32KB DMA 40MIPS). Flash self-programming enables field firmware updates.
Architecture-wise, the dsPIC33FJ32MC302 belongs to the dsPIC33FJ32MC302/304 family documented in Microchip datasheet DS70291, sharing pin compatibility with the PIC24HJ family and a high degree of software compatibility with the dsPIC30F family, allowing seamless migration across PIC24F, dsPIC30F and dsPIC33F devices.
Typical applications include brushless DC and permanent-magnet motor control, digital power converters (PFC, LLC, inverters), and sensor conditioning with on-chip comparators - all cases where 40 MIPS DSP throughput and hardware PWM resolution matter more than raw MHz.
Design consideration: the 3.0 V to 3.6 V supply range means a regulated 3.3 V rail is mandatory; verify comparator trip thresholds against the actual VDD before relying on fixed reference trips.
This page adds distributor pricing, verified drop-in family alternatives, and design guidance not consolidated in the manufacturer datasheet.
Alternativas directas para DSPIC33FJ32MC302-I/SO — 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 DSPIC33FJ32MC302-I/SO (mismo factor de forma y huella) — difiere en Package, RoHS Status, Supply Voltage, Mounting Type, Operating Temperature.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
DSPIC33FJ32MC202T-I/SO
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
DSPIC33FJ32MC302-E/SO
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
DSPIC33FJ32MC202-I/SP
✅ Sustitución directa✓ En stock
$3.25 / unidad
Ver hoja de datos →DSPIC33FJ32MC102T-I/SO
✅ Sustitución directa✓ En stock
$3.3 / unidad
Ver hoja de datos →DSPIC33FJ32MC101T-I/SO
✅ Sustitución directa✓ En stock
$3.32 / unidad
Ver hoja de datos →DSPIC33FJ32MC302-I/SO Valores máximos y características eléctricas
| Core | dsPIC33F 16-bit |
| Max CPU Speed | 40 MIPS |
| Flash Memory | 32 KB (32K x 8) |
| Tensión de alimentación | 3 V to 3.6 V |
| Temperatura de funcionamiento | -40C to +85C |
| Encapsulado | 28-SOIC (wide, 300 mil) |
| Tipo de montaje | Surface Mount |
| Peripherals | Motor Control PWM, 10-bit ADC, Comparators, DMA |
| Programmability | In-Circuit Serial Programming (ICSP), self-programming Flash |
| Debug Interface | PGEC/PGED In-Circuit Debug pairs |
| Estado RoHS | Lead-free, RoHS compliant (per datasheet packaging description) |
| Estado del ciclo de vida | Active |
| Family Compatibility | Pin compatible with PIC24HJ; code compatible with dsPIC30F/dsPIC33F |
Configuración de pines de DSPIC33FJ32MC302-I/SO
| Pin 1 | MCLR — Master clear reset (active low), programming voltage input |
| Pin 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive ADC reference / port B0 |
| Pin 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative ADC reference / port B1 |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select / port B2 |
| Pin 5 | AN3/INDX/CN5/RB3 — Analog input 3 / encoder index / port B3 |
| Pin 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / encoder A / capture 7 / port B4 |
| Pin 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / encoder B / capture 8 / port B5 |
| Pin 8 | VSS — Digital ground |
| Pin 9 | OSC1/CLKI — Oscillator crystal input / external clock input |
| Pin 10 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output / port C15 |
| Pin 11 | EMUD1/SOSCI/CN1/RC13 — Emulation D1 / secondary oscillator input / port C13 |
| Pin 12 | EMUC1/SOSCO/T1CK/CN0/RA4 — Emulation C1 / secondary oscillator output / Timer1 clock / port A4 |
| Pin 13 | VDD — Power supply (3 V to 3.6 V) |
| Pin 14 | EMUD/U1TX/SDO1/RF3 — Emulation D / UART1 TX / SPI1 data out / port F3 |
| Pin 15 | EMUC/U1RX/SDI1/RF2 — Emulation C / UART1 RX / SPI1 data in / port F2 |
| Pin 16 | PGEC2/AN6/OCFA/RB6 — Programming clock 2 / analog input 6 / PWM fault A / port B6 |
| Pin 17 | PGED2/AN7/OC2/RB7 — Programming data 2 / analog input 7 / compare 2 output / port B7 |
| Pin 18 | AN8/PWM1L1/RE0 — Analog input 8 / PWM1 low output / port E0 |
| Pin 19 | AN9/PWM1H1/RE1 — Analog input 9 / PWM1 high output / port E1 |
| Pin 20 | AN10/T5CK/PWM1L2/RE2 — Analog input 10 / Timer5 clock / PWM1 low 2 / port E2 |
| Pin 21 | AN11/PWM1H2/RE3 — Analog input 11 / PWM1 high 2 / port E3 |
| Pin 22 | AN12/PWM2L1/RE4 — Analog input 12 / PWM2 low 1 / port E4 |
| Pin 23 | AN13/PWM2H1/RE5 — Analog input 13 / PWM2 high 1 / port E5 |
| Pin 24 | AN14/PWM2L2/RE6 — Analog input 14 / PWM2 low 2 / port E6 |
| Pin 25 | AN15/PWM2H2/RE7 — Analog input 15 / PWM2 high 2 / port E7 |
| Pin 26 | AVSS — Analog ground |
| Pin 27 | AVDD — Analog power supply (3 V to 3.6 V) |
| Pin 28 | VDD — Power supply (3 V to 3.6 V) |
Aplicaciones típicas
DSPIC33FJ32MC302-I/SO es adecuado para 6 aplicacións: BLDC / PMSM Motor Control, Digital Power Conversion (PFC, LLC, Inverters), Sensor Signal Conditioning, Industrial Automation and Control Panels, Audio and Signal Processing Nodes, Portable and Battery-Powered Equipment.
BLDC / PMSM Motor Control
The DSPIC33FJ32MC302-I/SO fits brushless DC and permanent-magnet synchronous motor drives because its motor-control PWM module generates complementary, center-aligned outputs with hardware dead-time insertion at 40 MIPS core throughput, while QEA/QEB encoder inputs (RB4/RB5) and the INDX input (RB3) accept rotor position feedback without CPU overhead. On-chip comparators connect directly to the PWM for hardware overcurrent trip, shutting down outputs in microseconds without software latency. In a typical sensorless or encoder-based drive, the ADC samples phase currents synchronously with PWM centers to avoid switching noise. The trade-off versus a general-purpose MCU is that all control-loop math runs on the DSP engine with deterministic cycle counts, enabling stable current-loop bandwidths well above what an 8-bit controller achieves at the same clock rate.
Recomendado
Digital Power Conversion (PFC, LLC, Inverters)
Switched-mode power stages benefit directly from this DSC's combination of 40 MIPS execution, high-resolution PWM with programmable dead time, and fast analog comparators that implement cycle-by-cycle current limiting in hardware. Per the dsPIC33FJ32MC302/304 family datasheet (DS70291), the MC family was architected for 'Motor Control PWM and Advanced Analog', which translates equally to PFC, LLC and DC-AC inverter control. The ADC can be triggered by the PWM time base so voltage and current samples land at constant, ripple-free points in each switching period. Designers should budget CPU cycles carefully at high switching frequencies: at 100 kHz switching with a 40 MIPS core, only 400 cycles per period are available for the control law, making the DSP-engine MAC instructions and DMA-driven ADC results essential for closing both voltage and current loops.
Recomendado
Sensor Signal Conditioning
With multiple analog inputs (AN0-AN15 mapped to the RB and RE ports), a high-speed 10-bit ADC, and up to four comparators with selectable references, the DSPIC33FJ32MC302-I/SO conditions sensor signals end-to-end on-chip. Comparators can threshold thermistor or current-shunt signals and interrupt or trip the PWM directly, while the ADC digitizes slower channels for the DSP engine, which performs filtering (IIR/FIR via DSP instructions) at 40 MIPS. The 3 V to 3.6 V supply matches common 3.3 V sensor rails, simplifying board-level power. For accuracy-critical designs, power AVDD through an RC filter and calibrate gain/offset in firmware using Flash self-programming to store coefficients. This replaces an external op-amp-plus-ADC front end in cost-sensitive industrial sensor nodes while retaining deterministic response.
Recomendado
Industrial Automation and Control Panels
Industrial controllers demand the -40C to +85C industrial temperature grade, noise immunity, and deterministic behavior that the DSPIC33FJ32MC302-I/SO provides in its 28-pin SOIC package. Per Microchip, dsPIC33F devices are pin compatible with PIC24HJ and highly code compatible with dsPIC30F, so panel designs can migrate between families without re-spinning the PCB. Typical roles include pump/fan inverter control, conveyor drives, and actuator sequencing, where the hardware PWM drives IGBT/MOSFET gate stages and the comparators implement fast fault shutdown. The ICSP/ICD interface (PGEC/PGED pairs) allows field firmware updates through the existing harness, and self-programming Flash stores parameter sets. Designers should verify 3.3 V rail integrity in electrically noisy cabinets with local bulk and 0.1 uF decoupling at pins 13, 27 and 28.
Recomendado
Audio and Signal Processing Nodes
The dsPIC33F DSP engine (single-cycle MAC, 40 MIPS, sixteen 16-bit working registers per DS70291) supports real-time audio filtering, AGC and tone control at moderate sample rates. The 10-bit ADC can ingest microphone or line-level signals after external biasing, and PWM-based class-D style outputs or filtered PWM DAC outputs provide low-cost analog reconstruction where a codec is overkill. Because the device shares the 16-bit modified Harvard architecture with PIC24HJ, C compilers and libraries for DSP primitives (FFT, filters) are mature. For consumer audio accessories running from a 3.3 V rail, the -I temperature grade and 28-SOIC footprint keep BOM cost low. Note the ADC's 10-bit resolution limits SNR versus a dedicated audio codec, so choose this DSC when control plus light DSP combine in one chip rather than for hi-fi playback paths.
Recomendado
Portable and Battery-Powered Equipment
Portable instruments and battery tools benefit from the DSC's single 3 V to 3.6 V supply, low peripheral-count integration (PWM, ADC, comparators on-chip) and 28-SOIC surface-mount footprint that suits compact two-layer boards. The DMA capability offloads ADC result transfers so the CPU can sleep between control cycles, and the -I grade covers outdoor temperature excursions. Design considerations for battery operation: the strict 3.6 V maximum means a low-dropout regulator or buck converter must clamp a fully charged Li-ion cell (4.2 V); the RTC/oscillator circuit on OSC1/OSC2 supports low-power timing; and Flash self-programming allows logging calibration data without external EEPROM. Estimated: at 3.3 V nominal, every milliamp of average core current equals roughly 3.3 mW, so gate off peripherals in idle loops to maximize battery life.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para DSPIC33FJ32MC302-I/SO — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | DSPIC33FJ32MC202T-I/SO | DSPIC33FJ32MC302-E/SO | DSPIC33FJ32MC102T-I/SO | DSPIC33FJ32MC101T-I/SO |
|---|---|---|---|---|---|
| Package | 28-SOIC (wide) | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Flash Memory | 32 KB | 32 KB | 32 KB | 16 KB | 12 KB-class |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| Motor Control PWM | Yes | Yes | Yes | Yes (reduced channels) | Yes (reduced channels) |
| Lifecycle Status | Active | Active | Active | Active | Active |
Diferenciadores clave
- Purpose-built motor-control peripherals vs GP MC siblings (frente a DSPIC33FJ32GP202T-I/SO)
- Industrial temperature coverage with upgrade path (frente a DSPIC33FJ32MC302-E/SO)
- Full 32 KB Flash within the same footprint (frente a DSPIC33FJ32MC102T-I/SO)
Notas de diseño
The device operates from a strict 3 V to 3.6 V rail with separate VDD (pins 13, 28) and AVDD (pin 27) supplies. Decouple each pin with a 0.1 uF ceramic placed within 3-5 mm, plus one 4.7-10 uF bulk capacitor per rail. Power AVDD from VDD through an RC or ferrite filter to keep ADC reference noise low. Never feed a Li-ion cell (4.2 V) directly - use an LDO or buck to regulate to 3.3 V.
Use any PGECx/PGEDx pair for ICSP but keep them as matched pairs (e.g., PGEC2 on pin 16 with PGED2 on pin 17) and route both to a 5-pin programming header with MCLR. Keep the analog ground island under AVSS/AVDD traces separate from PWM gate-drive returns; single-point tie at the bulk capacitor prevents motor switching currents from corrupting ADC readings.
Three frequent mistakes: (1) treating RB0-RB7 pins as digital-only outputs while the ADC input multiplexer is still connected, which skews readings - configure ANSEL-equivalent registers at reset; (2) exceeding 3.6 V on MCLR during ICSP - use the programmer's specified VPP circuit; (3) assuming identical peripheral counts across the MC101/102/202/302 family - verify Flash and comparator counts in DS70291 before substituting a lower-memory drop-in.
Estimated: at 40 MIPS with typical I/O loading, core current is in the tens of milliamps, giving roughly 100-150 mW dissipation at 3.3 V. The 28-pin wide SOIC theta_JA on a standard four-layer board supports this without heatsinking. Only extended-ambient enclosures above 85C require stepping to the -E/SO grade (+125C).
Información de cumplimiento
Datasheet packaging description for SOIC variants states 'LEAD FREE, PLASTIC'; RoHS compliance inferred from lead-free packaging data and active Microchip catalog status. REACH/halogen/conflict-minerals status not stated in provided data.
