DSPIC33FJ64MC802-I/MM - 16-bit DSC 40MIPS 64KB Flash | Microchip
MPN: DSPIC33FJ64MC802-I/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.61 | $5.61 |
| 10 | $5.2 | $52.00 |
| 100 | $4.85 | $485.00 |
| 500 | $4.55 | $2,275.00 |
| 1,000 | $4.25 | $4,250.00 |
DSPIC33FJ64MC802-I/MM Overview
A digital signal controller combines the computational throughput of a digital signal processor with the peripheral integration and interrupt-driven determinism of a microcontroller. In the power-management hierarchy of embedded systems, the DSC sits above general-purpose MCUs where motor control, digital power conversion, and sensor-processing loops demand multiply-accumulate performance per clock cycle.
Key features include the dsPIC33F 16-bit modified Harvard architecture with DSP instruction support (MAC, DSP multiply), 40 MIPS maximum execution speed, 64 KB self-programming Flash, and eight DMA channels that move data without CPU intervention. Advanced analog peripherals and motor-control PWM outputs target precision control applications directly.
The architecture is pin compatible with the PIC24HJ family and shares a high degree of compatibility with dsPIC30F and dsPIC33F devices, allowing seamless migration between 16-bit Microchip platforms. The CMOS core operates from a 3 V to 3.6 V supply, and the industrial temperature grade (suffix I) covers -40C to +85C. In-circuit serial programming and debug are supported by standard Microchip tools, including PICKIT and ICD programmers, as well as SEGGER tooling.
Typical applications include brushless DC and permanent-magnet motor control, digital power supplies (PFC, LLC), and sensor signal processing in industrial automation.
Design consideration: keep the oscillator circuit within 12 mm of the device clock pins with load capacitors adjacent to the crystal, as recommended in the Microchip datasheet, to preserve start-up margin.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64MC802-I/MM — 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 DSPIC33FJ64MC802-I/MM (same form factor and footprint) — differing in Core Architecture, Package, Operating Temperature, Mounting Type, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32MC802-I/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24HJ64GP502-I/MM
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ32GP202-I/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ16MC304-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC802-I/MM Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F modified Harvard, CMOS |
| Maximum Clock Speed | 40 MHz |
| Maximum Performance | 40 MIPS |
| Program Memory Type | Flash |
| Program Memory Size | 64 KB |
| DMA Channels | 8 |
| Supply Voltage Range | 3 V to 3.6 V |
| Operating Temperature | -40C to +85C (industrial, suffix I) |
| Package | 28-QFN-S (6x6 mm) |
| Mounting Type | Surface Mount |
| Family Compatibility | Pin compatible with PIC24HJ family |
| Family | dsPIC33F 16-bit Digital Signal Controllers |
| Programming / Debug | In-Circuit Serial Programming (ICSP), SEGGER supported |
| RoHS Status | Compliant (lead-free package per datasheet packaging description) |
| Life Cycle Stage | Active |
DSPIC33FJ64MC802-I/MM 28-qfn-s (6x6 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ64MC802-I/MM (28-qfn-s (6x6 mm) 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 DSPIC33FJ64MC802-I/MM.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64MC802-I/MM is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digital Power Conversion (PFC / LLC), Industrial Automation and Control Nodes, Sensor Signal Processing, Portable and Compact Embedded Devices, Audio and Signal-Chain Processing.
Brushless DC / PMSM Motor Control
The DSPIC33FJ64MC802-I/MM is purpose-built for precision motor control: its 40 MIPS DSP core executes field-oriented control (FOC) loops fast enough for commutation intervals in the low kHz range, while the dedicated motor-control PWM peripheral generates complementary output pairs with hardware dead-time insertion. The 8 DMA channels stream ADC current-sense samples into RAM without CPU intervention, keeping loop latency deterministic. In a typical sensorless BLDC drive, the DSC runs the current loop at 20-40 kHz and the speed loop at 1 kHz, with the 64 KB Flash holding the control library plus field-update code. Supply operation at 3-3.6 V and the -40C to +85C industrial rating cover fans, pumps, and industrial servo drives.
Recommended
Digital Power Conversion (PFC / LLC)
Digital power supplies require deterministic control loops with low sample-to-output latency, and the DSPIC33FJ64MC802-I/MM fits this role directly. The 40 MHz / 40 MIPS core performs proportional-integral computations for PFC current shaping at switching frequencies up to several hundred kHz, while hardware PWM supports complementary outputs and dead-time control for half-bridge and LLC stages. DMA-offloaded ADC sampling keeps the control loop jitter-free, which directly reduces output ripple. The 64 KB Flash accommodates multiple operating modes (burst, phase-shift, protection states) plus firmware update headroom. Combined with a 3.3 V rail and industrial temperature rating, the device suits server power supplies, telecom rectifiers, and LED drivers.
Recommended
Industrial Automation and Control Nodes
In factory automation, control nodes must combine repetitive computation, deterministic interrupt response, and robust analog interfacing. The DSPIC33FJ64MC802-I/MM delivers 40 MIPS for control mathematics, multiplexed analog inputs for sensor acquisition, and DMA channels that buffer data streams without CPU load. Its 3-3.6 V operation integrates cleanly with standard 3.3 V logic and industrial sensor front ends, while the -40C to +85C grade tolerates unconditioned cabinets and outdoor enclosures. The 64 KB self-programming Flash enables remote firmware updates over fieldbuses without device replacement. Typical deployments include motor sub-drives, actuator controllers, pump protection units, and general-purpose embedded controllers where DSP-grade math performance exceeds what a general-purpose MCU offers.
Recommended
Sensor Signal Processing
Sensor front ends benefit from the DSP capabilities of the DSPIC33FJ64MC802-I/MM: hardware multiply-accumulate instructions accelerate digital filtering (FIR/IIR) of noisy signals from accelerometers, pressure sensors, and current transducers at sample rates where general-purpose MCUs stall. The 40 MIPS throughput supports sample rates into the hundreds of kHz, and 8 DMA channels move ADC results to memory buffers without interrupt overhead. On-chip analog peripherals reduce external component count in compact 6x6 mm designs. The industrial temperature rating and 3.3 V supply match typical industrial sensor modules, and pin compatibility with the PIC24HJ family lets designers switch between DSC and MCU processing models without a PCB respin.
Recommended
Portable and Compact Embedded Devices
The 6x6 mm 28-QFN package makes the DSPIC33FJ64MC802-I/MM attractive for space-constrained embedded products that still need DSP-class computation: handheld instruments, compact drives, battery-management boards, and embedded controllers where a 40 MHz core and 64 KB Flash fit within a small PCB area. The QFN land pattern minimizes board space and provides a short thermal path to the ground plane, and the 3-3.6 V single-rail supply simplifies power design in portable systems. In-circuit serial programming through standard Microchip tools supports final-assembly programming on production lines, and the family's migration compatibility with dsPIC30F and PIC24 devices protects software investment across product generations.
Recommended
Audio and Signal-Chain Processing
The DSP multiply-accumulate capability of the DSPIC33FJ64MC802-I/MM supports embedded audio tasks such as active filtering, gain staging, tone control, and simple effects processing. At 40 MIPS, the core handles single-channel audio algorithms at 44.1-48 kHz sample rates with adequate cycles for multiple biquad filter sections. The DMA channels maintain glitch-free sample streaming between the ADC and processing buffers, and the deterministic interrupt architecture avoids the scheduling jitter that plagues soft-real-time implementations. The compact 28-QFN package suits embedded audio products, and the industrial temperature range supports both consumer and commercial-audio installations. For heavy multi-channel DSP workloads, the higher-pin family members provide more peripherals at the same core speed.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC802-I/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32MC802-I/MM | PIC24HJ64GP502-I/MM | PIC24HJ32GP202-I/MM | DSPIC33FJ16MC304-I/ML |
|---|---|---|---|---|---|
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN (ML) - same pin count/family |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 64 KB | 32 KB | 64 KB | 32 KB | 16 KB |
| Performance | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MIPS class | 40 MIPS class | 40 MIPS class |
| Core Type | dsPIC33F DSC (DSP instructions) | dsPIC33F DSC - same | PIC24HJ MCU (pin compatible, no DSP instruction set) | PIC24HJ MCU | dsPIC33F DSC - same family |
| 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 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Maximum Flash in the 28-pin MC family tier (vs DSPIC33FJ32MC802-I/MM)
- Hardware DSP instruction set (vs PIC24HJ64GP502-I/MM)
- Memory capacity vs simplest family member (vs DSPIC33FJ16MC304-I/ML)
Design Notes
Oscillator layout is explicitly addressed in the Microchip datasheet (document 70291G): place the oscillator circuit on the same side of the board as the device, keep it within one-half inch (12 mm) of the respective oscillator pins, and position the load capacitors next to the crystal itself. Violating this placement guidance risks slow or failed start-up, especially at 40 MHz operation. For the 28-QFN package, use the recommended Microchip land pattern and connect the exposed thermal pad to a solid ground plane with an array of vias for both thermal and return-path performance.
The device operates from a 3 V to 3.6 V rail. Provide a well-regulated 3.3 V supply and place 100 nF ceramic decoupling capacitors at each VDD pin, as close to the package as possible, with one bulk capacitor (4.7-10 uF) per power domain. Separate analog and digital supply filtering (ferrite bead or RC) improves ADC accuracy in motor-control and digital-power applications where PWM switching noise couples into measurements. Ensure the 3.3 V regulator can handle inrush during Flash programming and account for the MCLR pin pull-up requirement for reliable ICSP programming.
Two frequent integration mistakes: first, the MM (QFN) package places VDD/VSS pairs internally - skipping any decoupling pair causes intermittent resets under PWM load steps. Second, engineers migrating from PIC18 5 V parts assume 5 V tolerance; the dsPIC33F family operates only at 3-3.6 V, so 5 V signals require level shifting or resistor dividers. Also verify peripheral pin assignments when substituting PIC24HJ-family pin-compatible parts, since shared-pin function mapping can differ between product lines even though the physical footprint is identical.
Compliance Information
Package described as lead-free plastic in distributor specification data; standard Microchip RoHS compliance applies to the -I/MM suffix. Full REACH and halogen-free status should be confirmed from Microchip's official environmental documentation.
