DSPIC33FJ64MC802-E/MM - 16-bit DSC, 40 MIPS, 64KB Flash | Microchip
MPN: DSPIC33FJ64MC802-E/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.9 | $5.90 |
| 10 | $5.31 | $53.10 |
| 100 | $4.72 | $472.00 |
| 500 | $4.13 | $2,065.00 |
| 1,000 | $3.66 | $3,660.00 |
DSPIC33FJ64MC802-E/MM Overview
A digital signal controller combines the deterministic interrupt handling and peripherals of a microcontroller with the mathematical throughput of a DSP. Within the power-management hierarchy, the dsPIC33F family sits above general-purpose MCUs (such as the PIC18 series) and below 32-bit MCUs, targeting closed-loop control applications that rely on high-speed, repetitive computations. According to Microchip, the dsPIC33F devices are pin compatible with the PIC24HJ family and share a very high degree of compatibility with the dsPIC30F family, enabling seamless migration.
Key features include the modified Harvard 16-bit core with DSP engine (barrel shifter, 17-bit x 17-bit multiplier, 40-bit accumulator), motor-control PWM peripherals, and advanced analog-to-digital conversion. The -E temperature suffix guarantees operation from -40C to +125C, supporting under-hood and industrial environments.
The architecture couples a 16-bit instruction width with 16-bit wide data RAM and single-cycle MAC operations, making it well suited to field-oriented motor control where Clarke/Park transforms execute every PWM cycle. Hardware division, modulo addressing, and DO/REPEAT loops further accelerate control math.
Typical applications include brushless DC and PMSM motor drives, digital power supplies (LLC, PFC, buck), and sensorless FOC algorithms requiring deterministic 40 MIPS throughput.
Design consideration: use the QFN exposed pad as the primary ground connection, soldered to a solid VSS copper pour, to minimize ground bounce during simultaneous PWM switching events.
This page synthesizes distributor pricing data, pin-compatible family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33FJ64MC802-E/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-E/MM (same form factor and footprint) — differing in Core Architecture, Package, Operating Temperature, Supply Voltage, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64MC802-I/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.25 / Unit
View Datasheet →DSPIC33FJ64MC202-E/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.95 / Unit
View Datasheet →DSPIC33FJ32MC302-E/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.95 / Unit
View Datasheet →DSPIC33FJ32MC202-E/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.6 / Unit
View Datasheet →DSPIC33FJ16MC304-E/PT-family 28-pin QFN equivalent DSPIC33FJ16MC304-E/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC802-E/MM Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F RISC with DSP engine |
| Maximum Clock Frequency | 40 MHz |
| Performance | 40 MIPS |
| Program Memory (Flash) | 64KB (64K x 8) |
| Supply Voltage | 3.3 V |
| Package | 28-QFN-S (6x6 mm), exposed pad |
| Pin Count | 28 |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40C to +125C (E grade) |
| Automotive Qualification | AEC-Q100 |
| Special Peripherals | Motor Control PWM, Advanced Analog, DSP engine |
| Family | dsPIC 33F Series |
| Features | Barrel shifter, boundary scan, 16-bit wide data RAM |
| Packaging Option | Tube (std) / Tape & Reel (DSPIC33FJ64MC802T-E/MM) |
| Max SRAM (family) | 16 KB (family maximum, per Microchip 16-bit DSC family datasheet) |
DSPIC33FJ64MC802-E/MM Pin Configuration
| Pin 1 | MCLR — Master clear reset (active low) / programming voltage input |
| Pin 2 | AN0/VREF+/CN2B/RB0 — Analog input 0 / positive voltage reference |
| Pin 3 | AN1/VREF-/CN3B/RB1 — Analog input 1 / negative voltage reference |
| Pin 4 | AN2/SS1/CN4B/RB2 — Analog input 2 / SPI slave select |
| Pin 5 | AN3/INDX/CN5B/RB3 — Analog input 3 / encoder index |
| Pin 6 | AN4/QEA/IC7/CN6B/RB4 — Analog input 4 / encoder phase A / input capture 7 |
| Pin 7 | VDD — Positive supply (3.3V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI/CN30/RA2 — Oscillator crystal input / external clock input |
| Pin 10 | OSC2/CLKO/CN29/RA3 — Oscillator crystal output / clock output |
| Pin 11 | AN5/QEB/IC8/CN7B/RB5 — Analog input 5 / encoder phase B / input capture 8 |
| Pin 12 | AN6/OCA/RPI32/CN8B/RB6 — Analog input 6 / comparator output A |
| Pin 13 | AN7/OCB/RPI33/CN9B/RB7 — Analog input 7 / comparator output B |
| Pin 14 | VSS — Ground reference |
| Pin 15 | AN8/RPI34/CN10B/RB8 — Analog input 8 |
| Pin 16 | AN9/RPI35/CN11B/RB9 — Analog input 9 |
| Pin 17 | AN10/CVREF/RTCC/RP10/CN12B/RB10 — Analog input 10 / comparator voltage reference / RTCC |
| Pin 18 | AN11/FLTA/REFO/RP11/CN13B/RB11 — Analog input 11 / PWM fault A / reference clock output |
| Pin 19 | PGD/EMUD/AN12/RP12/CN15B/RB12 — ICSP data / debug channel / analog input 12 |
| Pin 20 | PGC/EMUC/AN13/RP13/CN16B/RB13 — ICSP clock / debug channel / analog input 13 |
| Pin 21 | AN14/C1RX/RP14/CN17B/RB14 — Analog input 14 / ECAN1 receive |
| Pin 22 | AN15/C2TX/UPDN/RP15/CN18B/RB15 — Analog input 15 / ECAN2 transmit / quadrature up-down |
| Pin 23 | AVSS — Analog ground |
| Pin 24 | AVDD — Analog supply (3.3V) |
| Pin 25 | RP29/RF5 — Programmable peripheral I/O pin (RP29) |
| Pin 26 | RP30/RF4 — Programmable peripheral I/O pin (RP30) |
| Pin 27 | VDD — Positive supply (3.3V) |
| Pin 28 | VSS — Ground reference / exposed pad connection |
Typical Applications
DSPIC33FJ64MC802-E/MM is suitable for 6 applications: BLDC / PMSM Motor Control, Digital Power Supplies (LLC, PFC, Buck), Automotive Auxiliary Drives and Body Control, Industrial Drives and Automation, Battery-Powered Portable Equipment, Sensor Signal Processing and Embedded Control.
BLDC / PMSM Motor Control
The DSPIC33FJ64MC802-E/MM is purpose-built for precision motor control: its 40 MIPS 16-bit core with single-cycle MAC executes a complete field-oriented control (FOC) algorithm - Clarke and Park transforms plus PID current regulation and space-vector PWM - within each PWM cycle. The dedicated motor-control PWM peripheral provides complementary outputs with programmable dead time and fault inputs for overcurrent protection. Mounted on the inverter control board with the ADC synchronized to the PWM period, it samples phase currents at the PWM center for noise-free readings. The AEC-Q100 -E grade supports automotive traction-auxiliary and pump applications.
Recommended
Digital Power Supplies (LLC, PFC, Buck)
Digital power conversion requires deterministic loop closure at switching frequency, which the 40 MIPS dsPIC33F core provides: voltage-mode or average-current-mode control laws execute in a few microseconds, well within 100 kHz-to-500 kHz switching periods. The high-speed ADC with multiple sample-and-hold inputs captures output voltage and inductor current simultaneously, while the PWM module supports complementary outputs, dead-time insertion, and cycle-by-cycle current limiting. The 64KB FLASH holds compensation code, soft-start state machines, and PMBus-style communication stacks concurrently, making a single DSC replace several analog controllers.
Recommended
Automotive Auxiliary Drives and Body Control
With AEC-Q100 qualification and -40C to +125C operation, the DSPIC33FJ64MC802-E/MM suits automotive auxiliary motor loads: radiator fans, fuel pumps, window lifters, and HVAC blowers. The automotive supply environment demands robust ESD tolerance, wide temperature margins, and deterministic fault handling - the PWM fault pin can trip outputs within a single cycle on overcurrent, and MCLR-based supervision resets the core cleanly during crank transients. Distributor listings from Lisleapex and Hotenda confirm the part's positioning in automotive AEC-Q100 applications requiring extended temperature operation.
Recommended
Industrial Drives and Automation
In factory automation, the DSC controls conveyors, robotic joints, and servo axes where sensorless FOC reduces bill-of-material cost by eliminating encoders. The DSP engine's modulo and bit-reversed addressing accelerate FFT-based parameter identification, while 64KB FLASH stores multiple motion profiles and fieldbus firmware. Dual UART/SPI/I2C ports interface with PLC gateways, and boundary-scan support eases production test. The 28-pin QFN conserves PCB area inside compact drive modules, and the exposed-pad ground connection controls switching noise injected into nearby analog sensing circuits.
Recommended
Battery-Powered Portable Equipment
Operating from a single 3.3V rail, the DSPIC33FJ64MC802-E/MM fits battery-powered tools, drones, and portable instruments where it manages brushed or brushless motor speed and monitors pack voltage via its advanced analog inputs. The 16-bit architecture delivers 40 MIPS without the complexity of external DSP chips, and the QFN-28 6x6 mm footprint keeps controller real estate minimal in handheld form factors. PWM resolution supports quiet low-speed fan or pump control, while the E-grade temperature range tolerates enclosed, thermally stressful enclosures typical of power tools.
Recommended
Sensor Signal Processing and Embedded Control
Beyond motor control, the DSP engine accelerates filtering and spectral analysis for sensor nodes: single-cycle 17x17 multiplication implements FIR/IIR filters on vibration, pressure, or ultrasonic signals in real time. The advanced analog ADC front end samples multiple channels with programmable conversion sequencing, and the 64KB FLASH accommodates calibration tables plus self-diagnostics. The dsPIC33F's compatibility with the PIC24HJ and dsPIC30F families lets teams migrate existing codebases forward, as Microchip documents, reducing software requalification effort when upgrading legacy sensor platforms to this 40 MIPS device.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC802-E/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64MC802-I/MM | DSPIC33FJ64MC202-E/MM | DSPIC33FJ32MC302-E/MM | DSPIC33FJ32MC202-E/MM |
|---|---|---|---|---|---|
| Package | QFN-28-S 6x6 mm exposed pad | QFN-28-S 6x6 mm - same | QFN-28-S 6x6 mm - same | QFN-28-S 6x6 mm - same | QFN-28-S 6x6 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 40 MIPS @ 40 MHz | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Program Flash | 64 KB | 64 KB | 64 KB | 32 KB | 32 KB |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C | -40C to +125C | -40C to +125C |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Motor-Control PWM | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Extended automotive temperature range with AEC-Q100 (vs DSPIC33FJ64MC802-I/MM)
- Largest FLASH in the 28-pin MC80x pin-compatible group (vs DSPIC33FJ32MC302-E/MM)
- DSP engine with single-cycle MAC (vs PIC24HJ pin-compatible family)
Design Notes
The QFN-28 (6x6 mm) exposed pad is the primary device ground. Solder it to a solid VSS pour with an array of thermal vias (minimum 3x3 grid, 0.3 mm diameter) to the inner ground plane. The periphery-only gull-wing leads cannot alone provide a low-inductance ground path; relying on them causes ground bounce during simultaneous PWM edge switching and ADC conversion errors. Verify reflow profile per Microchip QFN assembly guidelines for voiding under the pad below 25%.
Decouple VDD (pins 7, 27) and AVDD (pin 24) independently: place a 0.1 uF X7R ceramic within 2 mm of each VDD pin and a 10 uF bulk capacitor near the supply entry. Keep AVSS (pin 23) tied to a quiet analog ground island connected to the main VSS pour at a single point near the device. This split prevents PWM switching currents from corrupting ADC readings taken from phase-current shunts.
Verify the temperature grade when qualifying alternate sources: the DSPIC33FJ64MC802-I/MM is a die-identical drop-in but is rated only to +85C - substituting it into an automotive +125C design is a reliability violation even though the footprint matches. Also confirm oscillator configuration fuses before first power-up: an incorrect OSC mode selection can leave CLKI floating and complicate ICSP recovery; route MCLR (pin 1) to the programming header regardless of application use.
The RP29/RP30 (pins 25/26) remappable peripheral pins allow UART, SPI, or PWM relocation in software - plan this flexibility early so high-current PWM traces stay short and away from the analog inputs on RB0-RB15. Route phase-current feedback to AN pins on an inner layer shielded by ground, and use the ADC simultaneous-sampling mode synchronized to the PWM center point to avoid switching-edge noise in current measurements.
Compliance Information
AEC-Q100 automotive qualification confirmed by DigiKey, Hotenda, and Lisleapex distributor listings. RoHS/REACH/lead-free status not stated in the provided data - confirm on the Microchip product page.
