DSPIC33FJ32MC302-I/SP - 16-bit DSC 40MIPS 32KB Flash | Microchip
MPN: DSPIC33FJ32MC302-I/SP ✓ فعالDSPIC33FJ32MC302-I/SP نمای کلی
A digital signal controller combines the computational power of a digital signal processor with the deterministic control architecture of a microcontroller. In the embedded systems hierarchy, the dsPIC33F family sits between general-purpose MCUs (such as PIC18) and dedicated DSPs, offering single-cycle MAC and DSP engine instructions while retaining interrupt-driven control peripherals, making it a power-management-class device for motion, digital power, and sensing systems.
Key features of the DSPIC33FJ32MC302 include a 40 MIPS 16-bit modified Harvard core, 32 KB (11K instruction words) of flash program memory with self-programming capability, 2 KB of SRAM, and dedicated DMA channels that move ADC data without CPU intervention. High-speed PWM outputs with dead-time control, up to four high-speed comparators with direct PWM fault connection, a 10-bit/12-bit ADC, UART, SPI, and I2C interfaces round out the peripheral set.
Architecturally, the device uses a single-cycle instruction flow with a dedicated DSP engine (17-bit multiplier, 40-bit accumulator, barrel shifter), enabling concurrent control loops and signal processing. The flash operates at up to 40 MIPS at 3.3V with an internal fast RC oscillator and PLL, reducing external component count. Operating voltage range is 3.0V to 3.6V.
Typical applications include brushless DC and PMSM motor control, digital power supplies and power factor correction, sensor signal conditioning, and general embedded control requiring repetitive high-speed arithmetic. The integrated motor-control PWM and analog comparators make it especially cost-effective for single-chip inverter designs.
Design consideration: the -I temperature suffix covers -40C to +85C; for extended-temperature or 3.0-3.6V operation near 150C die limits, verify thermal margins and use the appropriate device variant.
This page synthesizes distributor pricing, drop-in dsPIC33FJ family alternatives, and practical design notes not found in the manufacturer datasheet.
جایگزین‌های drop-in برای DSPIC33FJ32MC302-I/SP — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای DSPIC33FJ32MC302-I/SP (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Operating Temperature, Package, Core Architecture, RoHS Status, Timers.
DSPIC33FJ32MC202-I/SP
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←DSPIC33FJ32MC202-E/SP
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←DSPIC33FJ32MC302-E/SP
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←DSPIC33FJ64MC202-I/SP
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←DSPIC33FJ64MC302-I/SP
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
DSPIC33FJ64MC302-E/SP
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
DSPIC33FJ32MC302-I/SP حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Architecture | 16-bit dsPIC33F (modified Harvard) |
| Instruction Rate | 40 MIPS |
| Program Memory (Flash) | 32 KB (11K instruction words) |
| SRAM | 2 KB |
| ولتاژ تغذیه | 3.0 V to 3.6 V |
| دمای کاری | -40C to +85C |
| بسته‌بندی | 28-pin SPDIP |
| نوع نصب | Through Hole |
| Timers | 5 x 16-bit |
| ADC Resolution | 12-bit, 10-bit high-speed |
| Communication Interfaces | 2 x UART, 2 x SPI, 2 x I2C |
| Motor Control PWM | Yes, high-speed PWM with dead-time control |
| Analog Comparators | Up to 4 high-speed comparators |
| DMA | Yes |
| Input Capture / Output Compare | Yes |
| Real-Time Clock | RTCC |
| ROM Type | Flash |
| Pin Compatibility | Pin compatible with PIC24HJ family |
| Lead Finish | Lead free |
پیکربندی پین DSPIC33FJ32MC302-I/SP
| پین 1 | MCLR — Master clear reset input, programming voltage |
| پین 2 | AN0/VREF+/RB0 — Analog input 0 / positive voltage reference / port B0 |
| پین 3 | AN1/VREF-/RB1 — Analog input 1 / negative voltage reference / port B1 |
| پین 4 | AN2/SS1/RB2 — Analog input 2 / SPI slave select 1 / port B2 |
| پین 5 | AN3/INDX/RB3 — Analog input 3 / quadrature index / port B3 |
| پین 6 | AN4/QEA/RB4 — Analog input 4 / quadrature A input / port B4 |
| پین 7 | VDD — Positive supply (3.0 V to 3.6 V) |
| پین 8 | VSS — Ground reference |
| پین 9 | OSC1/CLKI — Oscillator crystal input / external clock input |
| پین 10 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output / port C15 |
| پین 11 | AN5/QEB/RB5 — Analog input 5 / quadrature B input / port B5 |
| پین 12 | VSS — Ground reference |
| پین 13 | VDD — Positive supply (3.0 V to 3.6 V) |
| پین 14 | AN8/C1IN+/RP0/RB6 — Analog input 8 / comparator 1 input+ / remappable RP0 / port B6 (PGD debug data) |
| پین 15 | AN9/C1IN-/RP1/RB7 — Analog input 9 / comparator 1 input- / remappable RP1 / port B7 (PGC debug clock) |
| پین 16 | AN10/RP2/RB8 — Analog input 10 / remappable RP2 (SCL1) / port B8 |
| پین 17 | AN11/RP3/RB9 — Analog input 11 / remappable RP3 (SDA1) / port B9 |
| پین 18 | TMS/SOSCI/RB10 — JTAG TMS / secondary oscillator input / port B10 |
| پین 19 | TDI/SOSCO/T1CK/RB11 — JTAG TDI / secondary oscillator output / Timer1 clock / port B11 |
| پین 20 | RP4/RB12 — Remappable peripheral RP4 (IC7) / port B12 |
| پین 21 | RP5/RB13 — Remappable peripheral RP5 (U1RX/SDI1/IC8) / port B13 |
| پین 22 | AN13/RP6/RB14 — Analog input 13 / remappable RP6 (U1TX/SDO1) / port B14 |
| پین 23 | AN14/CVREF/RP7/RB15 — Analog input 14 / comparator voltage reference / remappable RP7 / port B15 |
| پین 24 | VDD — Positive supply (3.0 V to 3.6 V) |
| پین 25 | VSS — Ground reference |
| پین 26 | RP10/INT0 — Remappable peripheral RP10 / external interrupt 0 |
| پین 27 | RP11/IC2 — Remappable peripheral RP11 / input capture 2 |
| پین 28 | RP12/IC3 — Remappable peripheral RP12 / input capture 3 |
کاربردهای معمول
DSPIC33FJ32MC302-I/SP مناسب است برای 6 کاربردs: Brushless DC and PMSM Motor Control, Digital Power Supplies and PFC, Sensor Signal Conditioning, Embedded Industrial Control, Audio Signal Processing, Battery-Powered Portable Instruments.
Brushless DC and PMSM Motor Control
The DSPIC33FJ32MC302-I/SP is purpose-built for single-chip motor inverter control: its high-speed PWM module generates complementary outputs with programmable dead-time, and up to four high-speed comparators connect directly to PWM fault inputs for cycle-by-cycle overcurrent shutdown without CPU latency. The 40 MIPS core executes field-oriented control loops with single-cycle MAC instructions, while DMA moves ADC current-sense samples autonomously, keeping interrupt jitter low. In a typical 24V/48V BLDC drive, the DSC reads shunt currents through its 12-bit ADC, runs the FOC loop at 10-20 kHz, and gates a three-phase MOSFET bridge. The 32 KB flash holds the control firmware plus commutation tables, and the 3.0-3.6V operation with integrated RTCC and watchdog simplifies system design.
پیشنهادی
Digital Power Supplies and PFC
Switch-mode power supplies and power-factor-correction stages benefit from the DSPIC33FJ32MC302-I/SP's deterministic PWM resolution, fast 10-bit ADC sampling mode, and analog comparators that can trigger current-limiting events in hardware. The 40 MIPS core closes voltage and current loops at switching frequencies of 100-500 kHz with phase-lead compensation computed in firmware, and the DSP engine handles ripple computation efficiently. DMA streams ADC results into RAM so the control ISR runs with minimal overhead. The 32 KB flash accommodates soft-start, burst-mode, and protection state machines together with instrumentation routines. Because the -I grade covers -40C to +85C, the same firmware can serve industrial telecom rectifiers and consumer adapters without redesign.
پیشنهادی
Sensor Signal Conditioning
The DSPIC33FJ32MC302-I/SP integrates the analog front end needed for sensor conditioning: a 12-bit ADC with multiple multiplexed channels, an internal voltage reference, and high-speed comparators for threshold alarms. The DSP engine performs filtering (IIR/FIR), RMS computation, and calibration arithmetic in single-cycle MAC operations, while the RTCC time-stamps measurements for logging. UART, SPI, and I2C interfaces connect the conditioned data to displays, radios, or host controllers; RPn remappable pins let designers place these peripherals on convenient physical pins. With 40 MIPS available, oversampling and averaging techniques push effective ADC resolution beyond the nominal 12 bits. The 2 KB SRAM buffers sample windows, and DMA eliminates CPU polling for continuous acquisition.
پیشنهادی
Embedded Industrial Control
General industrial control panels, actuators, and automation nodes use the DSPIC33FJ32MC302-I/SP as a compact, single-chip controller. Five 16-bit timers support PWM generation, input capture for encoder feedback, and system tick scheduling; external interrupt pins handle limit switches and safety interlocks. The industrial -40C to +85C rating and 3.3V operation suit factory-floor environments, and the through-hole 28-pin SPDIP package simplifies prototyping, rework, and low-volume production on 2.54 mm-pitch boards. The 32 KB flash supports self-programming for field firmware updates via UART bootloader. Combined UART channels allow simultaneous Modbus communication and local HMI links, while the core's control-oriented architecture executes PID loops deterministically at microsecond scale.
پیشنهادی
Audio Signal Processing
The MC302 sub-family's audio-ready analog features and DSP engine make the DSPIC33FJ32MC302-I/SP suitable for compact audio effects, active crossovers, and signal analysis tools. The 17-bit multiplier and 40-bit accumulator implement biquad filters and FFT windows without overflow risk, and the 40 MIPS budget supports multiple real-time filter stages at 48 kHz sample rates. The high-speed ADC captures microphone or line-level inputs (with appropriate biasing), while PWM outputs or an external codec interface deliver reconstruction. The 12-bit ADC and comparators also enable envelope detection and clipping protection in hardware. For hobbyist and educational audio platforms, the SPDIP package allows breadboarding and socketed upgrades without soldering equipment.
پیشنهادی
Battery-Powered Portable Instruments
Handheld meters, dataloggers, and test instruments built on the DSPIC33FJ32MC302-I/SP benefit from its low operating power, integrated RTCC, and brownout/reset supervision that protect data integrity as the battery discharges. The 3.0-3.6V window matches a single lithium cell managed by an LDO, and peripheral module disable bits plus idle/sleep modes cut consumption between measurements. DMA and the 12-bit ADC sample sensors with the CPU asleep in periodic bursts, extending battery life. The 28-pin SPDIP through-hole package suits rugged, field-serviceable instruments where sockets permit controller replacement. Flash self-programming stores calibration constants and logged data in unused program space, removing external EEPROM from compact designs.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای DSPIC33FJ32MC302-I/SP — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | DSPIC33FJ32MC202-I/SP | DSPIC33FJ32MC202-E/SP | DSPIC33FJ32MC302-E/SP | DSPIC33FJ64MC202-I/SP | DSPIC33FJ64MC302-I/SP |
|---|---|---|---|---|---|---|
| Package | 28-pin SPDIP | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 40 MIPS 16-bit | 40 MIPS 16-bit | 40 MIPS 16-bit | 40 MIPS 16-bit | 40 MIPS 16-bit | 40 MIPS 16-bit |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 64 KB | 64 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +85C | -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 | 3.0 V to 3.6 V |
| High-Speed Comparators | Up to 4 | Reduced set | Reduced set | Up to 4 | Reduced set | Up to 4 |
تفاوت‌های کلیدی
- Extended high-speed comparator set with direct PWM fault connection (در مقابلDSPIC33FJ32MC202-I/SP)
- Extended-temperature upgrade on the same footprint (در مقابلDSPIC33FJ32MC302-E/SP)
- Memory headroom upgrade without PCB change (در مقابلDSPIC33FJ64MC302-I/SP)
- Honest trade-off: no cross-brand drop-in exists (در مقابلAny non-Microchip 16-bit DSC)
یادداشت‌های طراحی
Provide a clean 3.3V rail within 3.0-3.6V for VDD. Place 0.1 uF ceramic decoupling capacitors at each VDD pin (pins 7, 13, 24) with a solid ground connection to the adjacent VSS pins (8, 12, 25). dsPIC33F devices draw transient core currents during flash write operations; a bulk 10 uF capacitor near the device prevents brownout during self-programming. Enable the internal brown-out reset (BOR) so the controller does not execute corrupted code during supply dips.
The SPDIP package is through-hole, which suits prototyping but is electrically noisier than SMT equivalents on motor-drive boards. Route PWM outputs to the gate driver as short twisted pairs and keep ADC analog inputs (AN0-AN14) away from PWM and gate-drive traces. Use RPn remappable pins to place UART/SPI/I2C on pins physically distant from high-current loops. Reserve ICSP access to PGD/PGC (pins 14/15) with a 5-pin header for in-circuit programming with PICkit 3 or ICD 3.
Analog pins shared with digital ports default to analog mode after reset; clear the ANSB/ANSEL-style analog-select registers early in initialization or digital reads on RB pins will return incorrect levels. Oscillator configuration fuses must match your crystal frequency - an incorrect PLL setting can clock the core beyond 40 MIPS and violate timing. When migrating from DSPIC33FJ32MC202, verify comparator-based PWM fault trips because the MC202 provides a reduced comparator set. Also confirm -I versus -E temperature grade matches the product environment.
Estimated: at 40 MIPS the dsPIC33FJ32MC302 core typically dissipates well under 300 mW in active mode (per Microchip typical current figures), so the SPDIP package needs no heatsink in standard designs. However, flash self-programming raises momentary current; ensure ambient conditions keep junction temperature within the -40C to +85C (or +125C for -E grade) rating with margin in sealed enclosures.
اطلاعات انطباق
Package description in distributor data identifies the device as lead-free; RoHS compliance per Microchip standard product listing. REACH and conflict-minerals status not stated in provided data.
