DSPIC33FJ32GP304-I/ML - 16-bit 40MIPS 32KB Flash DSC | Microchip
MPN: DSPIC33FJ32GP304-I/ML ✓ نشطDSPIC33FJ32GP304-I/ML نظرة عامة
A Digital Signal Controller combines the computing core of a 16-bit microcontroller with the math-acceleration hardware of a DSP. In the power-management hierarchy, a DSC sits between a general-purpose MCU and a dedicated DSP, making it the default choice for closed-loop control of switched-mode power converters, motor drives, and digital signal conditioning where tight real-time deadlines and multiply-accumulate throughput are both required.
Key features of the DSPIC33FJ32GP304 include a 16-bit modified Harvard core running 40 MIPs at 40 MHz (12 instruction clock cycles per loop at 3.3V), an 8-channel DMA controller that moves ADC and UART data without CPU intervention, a high-speed 12-bit ADC with up to 500 ksps conversion rate, and three 16-bit timers plus a 32-bit timer option. The General Purpose (GP) family also integrates input capture and output compare modules suited to encoder feedback and PWM generation.
Architecturally, the dsPIC33FJ core pairs a 17-bit x 17-bit single-cycle hardware multiplier with 40-bit accumulators and dual operand fetch, executing DSP multiply-accumulate instructions in one cycle. The Flash program memory is self-programmable with an integrated write controller, and the device supports In-Circuit Serial Programming (ICSP) and In-Circuit Emulation (ICE) via the PICkit and ICD tool families.
Typical applications include digital power supplies (PFC, LLC, buck/boost control loops), sensorless BLDC and PMSM motor control, solar inverters, battery chargers, and general-purpose embedded control needing analog integration such as portable instrumentation.
Design-wise, keep the 3.3V rail within 3.0V to 3.6V, decouple all VDD/VSS pin pairs including the exposed thermal pad (which is the primary VSS connection), and reserve the PGD/PGC programming pins for ICSP access.
This page adds value beyond the Microchip datasheet by consolidating distributor pricing tiers, verified drop-in family alternatives, application guidance, and lifecycle information in one place.
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الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع DSPIC33FJ32GP304-I/ML (نفس عامل الشكل والبصمة) — يختلف في Package, Core Architecture, Operating Temperature, Max CPU Speed, RoHS Status.
DSPIC33FJ32GP304-H/ML
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
DSPIC33FJ16GP304-I/ML
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←DSPIC33FJ128GP304-I/ML
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
DSPIC33FJ64GP304-I/ML
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
DSPIC33FJ32GP304-I/ML الحدود القصوى والخصائص الكهربائية
| Core | dsPIC33F 16-bit DSC |
| Max CPU Speed | 40 MIPS (40 MHz) |
| Flash Program Memory | 32 KB (32K x 8) |
| SRAM | 4 KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| DMA Channels | 8 channels |
| Timers | 7 (16-bit and 32-bit) |
| Serial Interfaces | 3 serial I/O ports (UART/SPI/I2C) |
| I/O Ports | 35 I/O |
| العلبة | 44-QFN (8x8 mm) exposed pad |
| نوع التركيب | Surface Mount |
| درجة حرارة التشغيل | -40C to +85C (I grade) |
| عرض ناقل البيانات | 16 bit |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| ADC | 10-bit/12-bit high-speed ADC |
| حالة RoHS | Lead free, RoHS compliant package |
| Lifecycle Stage | Active |
تكوين أطراف DSPIC33FJ32GP304-I/ML
| دبوس 1 | MCLR — Master clear reset (active low) / programming voltage input |
| دبوس 2 | AN0/VREF+/RA0 — Analog input 0 / positive voltage reference / port A |
| دبوس 3 | AN1/VREF-/RA1 — Analog input 1 / negative voltage reference / port A |
| دبوس 4 | AN2/RB0 — Analog input 2 / port B |
| دبوس 5 | AN3/RB1 — Analog input 3 / port B |
| دبوس 6 | AN4/RB2 — Analog input 4 / port B |
| دبوس 7 | AN5/RB3 — Analog input 5 / port B |
| دبوس 8 | AN6/RB4 — Analog input 6 / port B |
| دبوس 9 | AN7/RB5 — Analog input 7 / port B |
| دبوس 10 | AN8/RB6 — Analog input 8 / port B |
| دبوس 11 | AN9/RB7 — Analog input 9 / port B |
| دبوس 12 | VSS — Ground reference |
| دبوس 13 | VDD — Power supply (3.0V to 3.6V) |
| دبوس 14 | AN10/RB8 — Analog input 10 / port B |
| دبوس 15 | AN11/RB9 — Analog input 11 / port B |
| دبوس 16 | TCK/RB10 — JTAG test clock / port B |
| دبوس 17 | TDO/RB11 — JTAG test data out / port B |
| دبوس 18 | RA2 — Port A digital I/O |
| دبوس 19 | RA3 — Port A digital I/O |
| دبوس 20 | PGD/AN12/RB12 — In-circuit debug data / analog input 12 / port B |
| دبوس 21 | PGC/AN13/RB13 — In-circuit debug clock / analog input 13 / port B |
| دبوس 22 | AN14/RB14 — Analog input 14 / port B |
| دبوس 23 | AN15/RB15 — Analog input 15 / port B |
| دبوس 24 | OSC1/CLKI/RC12 — Oscillator crystal input / external clock in |
| دبوس 25 | OSC2/CLKO/RC15 — Oscillator crystal output / clock out |
| دبوس 26 | RC1/T2CK/U1ATX — Timer2 external clock / UART1 alternate TX |
| دبوس 27 | RC0/T1CK/U1ARX — Timer1 external clock / UART1 alternate RX |
| دبوس 28 | SOSCI/T2CK/RC13 — Secondary oscillator input / Timer2 clock |
| دبوس 29 | SOSCO/T1CK/PA4/RA4 — Secondary oscillator output / Timer1 clock / port A |
| دبوس 30 | SDA/RG3 — I2C data / port G |
| دبوس 31 | SCL/RG2 — I2C clock / port G |
| دبوس 32 | INT0/RF6 — External interrupt 0 / port F |
| دبوس 33 | TMS/RF3 — JTAG test mode select / port F |
| دبوس 34 | RF2/U1RX — UART1 receive / port F |
| دبوس 35 | RF3/RF8/U1TX — UART1 transmit / port F |
| دبوس 36 | RF2/SOSCI/RF4 — Port F multiplexed peripheral I/O |
| دبوس 37 | RF5 — Port F digital I/O |
| دبوس 38 | RF4/RF13 — Port F digital I/O |
| دبوس 39 | RD0 — Port D digital I/O / PWM output |
| دبوس 40 | RD1 — Port D digital I/O / PWM output |
| دبوس 41 | AVDD — Analog power supply (3.0V to 3.6V) |
| دبوس 42 | AVSS — Analog ground reference |
| دبوس 43 | VDD — Power supply (3.0V to 3.6V) |
| دبوس 44 | VSS — Ground reference / exposed pad primary ground |
التطبيقات النموذجية
DSPIC33FJ32GP304-I/ML مناسب لـ 6 التطبيقs: Digital Power Supply Control, Sensorless Motor Control, Industrial Automation Nodes, Battery Management and Charging, Portable Instrumentation, Renewable Energy Micro-Inverters.
Digital Power Supply Control
The DSPIC33FJ32GP304-I/ML fits digital power conversion because its 40 MIPS core and single-cycle 17x17 hardware multiplier close compensation loops fast enough for 100 kHz to 500 kHz switching stages, while the high-speed ADC samples the feedback divider for the control loop. In a typical topology the ADC result is streamed to RAM by one of the 8 DMA channels, the firmware executes the PID/2P2Z compensation in a few microseconds, and the PWM modules update the duty cycle within the same switching period. The trade-off versus a dedicated digital power ASIC is firmware development effort; versus a larger DSC, this 32KB variant caps code complexity but cuts cost and power.
موصى به
Sensorless Motor Control
For BLDC and PMSM drives, the DSPIC33FJ32GP304-I/ML provides input-capture modules that timestamp encoder or hall edges with core-clock resolution, output-compare channels for the inverter PWM, and the 40 MIPS core to run field-oriented control or back-EMF estimation in real time. The 4KB SRAM holds the state observer and current-loop variables, and the 35 I/O lines drive gate-driver interfaces and protection interlocks. Control bandwidth of several kHz is achievable at 40 MIPS with single-cycle MAC operations. Note that the GP variant lacks the dedicated motor-control PWM with cycle-by-cycle current trip of the MC family, so external fault gating is recommended for high-power stages.
موصى به
Industrial Automation Nodes
On factory floors, the DSPIC33FJ32GP304-I/ML serves as a compact control and communication node: three serial ports implement RS-485 (UART), sensor buses (SPI), and host links (I2C), while the ADC and comparators handle local analog monitoring. The industrial -40C to +85C temperature grade covers panel and machinery enclosures, and the 44-QFN (8x8 mm) footprint keeps the controller area small on dense I/O boards. The ICSP interface allows field firmware updates through a PICkit programmer without removing the board. DMA offloads serial transfers so the 40 MIPS core can run protocol stacks and control logic concurrently with deterministic latency.
موصى به
Battery Management and Charging
Battery chargers and BMS front ends benefit from the DSC combination of precision analog sampling and fast control: the high-speed ADC monitors cell voltage and pack current at hundreds of kilosamples per second, the hardware comparators detect overcurrent in nanoseconds, and the PWM output drives the synchronous buck charging stage. The 3.0V to 3.6V supply simplifies powering from an auxiliary 3.3V rail, and the DMA channels log cell data to SRAM for host reporting over UART. Charge profiles (CC/CV, taper, balancing coordination) fit comfortably in the 32KB Flash, leaving headroom for state-of-charge estimation tables.
موصى به
Portable Instrumentation
Handheld and bench instruments use the DSPIC33FJ32GP304-I/ML for its balance of DSP throughput and low peripheral count: the ADC digitizes transducer inputs, the core applies filtering and FFT in firmware thanks to single-cycle MAC instructions, and the serial ports stream results to a PC or display. The 44-QFN (8x8 mm) package with exposed pad yields a compact PCB footprint for portable enclosures, and the deterministic 40 MIPS execution simplifies sample-rate-accurate acquisition. At moderate clock settings the DSC supports battery operation, though the fixed 3.3V rail requires a small boost or LDO stage from primary cells.
موصى به
Renewable Energy Micro-Inverters
Solar micro-inverter and MPPT converter designs match the DSPIC33FJ32GP304-I/ML capabilities well: MPPT algorithms need fast ADC sampling of panel voltage/current plus iterative search math, which the 40 MIPS core and hardware multiplier execute within one switching cycle, while PWM outputs drive the power stage through gate drivers. The 8-channel DMA keeps control-loop timing deterministic under communication load. The 3.0V to 3.6V supply ties directly to a bias fly winding, and the industrial temperature rating suits rooftop enclosure environments. For multi-phase string inverters, step up to a larger Flash/IO family member on the same footprint.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ DSPIC33FJ32GP304-I/ML — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | DSPIC33FJ32GP304-H/ML | DSPIC33FJ16GP304-I/ML | DSPIC33FJ128GP304-I/ML | DSPIC33FJ64GP304-I/ML |
|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) ML | 44-QFN (8x8 mm) ML - same | 44-QFN (8x8 mm) ML - same | 44-QFN (8x8 mm) ML - same | 44-QFN (8x8 mm) ML - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Flash Memory | 32 KB | 32 KB | 16 KB | 128 KB | 64 KB |
| SRAM | 4 KB | 4 KB | 2 KB | 16 KB | 8 KB |
| 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 |
| Temperature Grade | -40C to +85C (I) | H grade (per ordering table) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| DMA Channels | 8 | 8 | 8 | 8 | 8 |
أبرز الفروقات
- 32KB Flash with 4KB SRAM at 40 MIPS in a compact 8x8 mm QFN (مقابلDSPIC33FJ16GP304-I/ML)
- Lowest-cost 40 MIPS family entry point (مقابلDSPIC33FJ128GP304-I/ML)
- Industrial temperature grade with broad distribution stock (مقابلDSPIC33FJ32GP304-H/ML)
ملاحظات التصميم
The dsPIC33FJ32GP304 requires a single 3.0V to 3.6V VDD rail plus the AVDD analog pin, which should be fed through an RC or ferrite filter (e.g., 10 ohm + 1 uF) from VDD to improve ADC noise performance. Per the 'Basic Connection Requirements' section 2.1 of Microchip datasheet 70292E, all VDD pins must be connected, MCLR pulled up through a 1k-10k resistor, and VSS/exposed pad tied directly to the ground plane. Estimated: at 40 MIPS typical core current in the tens-of-mA range, a standard 3.3V 100 mA LDO is sufficient for the MCU alone.
On the 44-QFN (8x8 mm) ML package, the exposed pad on the bottom side is a primary ground connection and must be soldered to a via-stitched ground pad; a floating exposed pad causes poor ground integrity and ADC noise. Place 0.1 uF decoupling capacitors within 2 mm of each VDD/VSS pair, plus one 4.7-10 uF bulk capacitor near the device. Keep the OSC1/OSC2 crystal traces short and guarded by ground. Route the PGD/PGC ICSP traces to a 5-pin header for in-field programming; treat them as high-impedance during operation.
Common failure modes with this family: (1) leaving analog pins (AN0-AN15) as analog when used as digital outputs - the ANSEL-equivalent AD1PCFG register must set them to digital; (2) using the GP variant expecting motor-control PWM fault inputs - the MC family provides those; (3) forgetting that Flash endurance is limited for self-write data logging, so frequent parameter storage should use external EEPROM (e.g., 24LC series) rather than program Flash. Verify errata sheets for the dsPIC33FJ family on the Microchip site before finalizing code that uses DMA with UART in unusual configurations.
معلومات الامتثال
Package described in verified data as lead-free plastic 44-QFN; RoHS compliant per distributor listings. AEC-Q100 does not apply to this commercial/industrial GP-family part. REACH and halogen-free status: consult Microchip Material Declaration Sheet.