DSPIC33FJ64MC802-H/SO - 16-bit DSC, 64KB Flash, 40MHz | Microchip
MPN: DSPIC33FJ64MC802-H/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.4 | $5.40 |
| 10 | $4.86 | $48.60 |
| 100 | $4.42 | $442.00 |
| 500 | $3.98 | $1,990.00 |
| 1,000 | $3.62 | $3,620.00 |
DSPIC33FJ64MC802-H/SO Overview
A digital signal controller is a hybrid device that merges the deterministic control features of a microcontroller (interrupts, peripherals, Flash memory) with the high-speed, repetitive computation capability of a digital signal processor (DSP engine, MAC instructions). Within the power-management hierarchy, DSCs such as the dsPIC33F family sit above basic MCUs and are widely used wherever fast control loops - such as current loops in motor drives - must execute at microsecond intervals.
Key features of this device include the Motor Control PWM module for precision motor drive, a DMA controller that offloads data transfers from the CPU, and advanced analog peripherals for sensing feedback signals. Per Microchip product data, the family is pin compatible with the PIC24HJ family and shares a high degree of compatibility with dsPIC30F and dsPIC33F devices, enabling seamless migration across the portfolio.
Architecturally, the dsPIC33F employs a modified Harvard 16-bit core optimized for high-speed, repetitive computations as well as control. Program memory is Flash-based (64KB on this variant) with the family scaling up to 128KB Flash and 16K SRAM, while the DSP instruction set accelerates filtering and transform-based algorithms used in digital power and sensor processing.
Typical applications include brushless DC (BLDC) and permanent-magnet motor control, digital power supplies (PFC, LLC), and sensor signal conditioning where the on-chip analog and DSP engine handle fast feedback loops. The CAN-capable, DMA-equipped architecture also suits industrial automation nodes.
Design consideration: the 3.0V-3.6V supply requires a regulated 3.3V rail; the -H suffix denotes the wider temperature rating, so verify thermal margin in enclosed motor-drive enclosures.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes beyond what the manufacturer datasheet alone provides.
Drop-in alternatives for DSPIC33FJ64MC802-H/SO — 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-H/SO (same form factor and footprint) — differing in Package, Operating Temperature, RoHS Status, Supply Voltage, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64MC802-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC202-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.62 / Unit
View Datasheet →DSPIC33FJ32MC302-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.4 / Unit
View Datasheet →DSPIC33FJ32MC202-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC101T-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.32 / Unit
View Datasheet →DSPIC33FJ64MC802-H/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC |
| Flash Program Memory | 64 KB |
| Clock Speed | 40 MHz |
| Performance | 20 MIPS |
| Supply Voltage | 3.0 V to 3.6 V |
| Package | 28-pin SOIC |
| Mounting Type | Surface Mount |
| Peripherals | Motor Control PWM, CAN, DMA |
| Product Family | dsPIC33F 16-bit Digital Signal Controllers |
| Pin Compatibility | PIC24HJ family pin compatible |
| ROM Type | Flash |
| Life Cycle Stage | ACTIVE |
| Temperature Suffix | -H (extended temperature rating) |
| Programming | In-System Programmable (ISP supported) |
| RoHS Status | Compliant (lead-free plastic package) |
DSPIC33FJ64MC802-H/SO 28-pin soic Pin Configuration Guide
Pin configuration for DSPIC33FJ64MC802-H/SO (28-pin soic 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-H/SO.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64MC802-H/SO is suitable for 6 applications: BLDC/PMSM Motor Control, Digital Power Supplies (PFC/LLC), Industrial Automation Nodes, Sensor Signal Conditioning, Automotive and CAN Networking Subsystems, Embedded DSP and Audio Processing.
BLDC/PMSM Motor Control
The DSPIC33FJ64MC802-H/SO fits brushless DC and permanent-magnet synchronous motor drives because it belongs to the dsPIC33F MC (Motor Control) subfamily, purpose-built for precision motor control with dedicated Motor Control PWM outputs. The 40MHz 16-bit core executing 20 MIPS gives enough headroom for field-oriented control current loops running at 10-20kHz, while DMA moves ADC results to RAM without CPU intervention, keeping loop latency deterministic. The extended -H temperature rating is valuable inside sealed drive housings. Place the controller close to the gate-driver stage, route PWM outputs with adequate spacing, and use the on-chip analog channels for phase-current and bus-voltage feedback sensing.
Recommended
Digital Power Supplies (PFC/LLC)
Digital power conversion benefits directly from the DSPIC33FJ64MC802-H/SO's combination of high-speed repetitive computation and control peripherals. Voltage-mode or current-mode loops in PFC and LLC stages need PWM update rates and ADC sampling synchronized at tens of kilohertz; the 40MHz core with DSP MAC instructions computes the compensator fast enough for microsecond-scale loops, while Motor Control PWM provides the complementary outputs and dead-time control needed for half-bridge topologies. DMA removes ADC-to-memory overhead from the control ISR. The 3.0V-3.6V supply integrates cleanly with an auxiliary 3.3V bias rail already present in most power supplies.
Recommended
Industrial Automation Nodes
In factory automation and industrial control, the DSPIC33FJ64MC802-H/SO serves as an intelligent actuator or sensor node. Its CAN peripheral connects the node to vehicle- or machine-level buses, while DMA keeps communication transfers off the CPU so the 16-bit core concentrates on control and signal processing. Microchip states the dsPIC33F family targets applications relying on high-speed, repetitive computations as well as control - exactly the profile of a servo axis, pump controller, or conveyor node. The 28-SOIC footprint suits compact distributed I/O boards, and in-system programming via standard Microchip tools (PICkit, ICD, REAL ICE) simplifies field firmware updates.
Recommended
Sensor Signal Conditioning
Analog sensor front ends - pressure bridges, thermocouples, current shunts - need filtering and fast, deterministic conversion. The DSPIC33FJ64MC802-H/SO applies its 16-bit DSP engine to digital filtering and calibration math at 40MHz, while on-chip advanced analog handles the sensing inputs directly, eliminating an external ADC in many designs. DMA streams conversion results to memory without CPU loading, keeping the filter chain real-time. Per the family datasheet description, these controllers integrate Motor Control PWM and advanced analog with up to 128KB Flash and 16K SRAM, making the MC802's 64KB Flash ample for lookup-table linearization, compensation routines, and communication stacks in compact sensor modules.
Recommended
Automotive and CAN Networking Subsystems
The CAN peripheral of the DSPIC33FJ64MC802-H/SO makes it a natural fit for vehicle and machinery network subsystems - body controllers, pump drives, and auxiliary motor modules. The extended-temperature -H grade supports under-hood and engine-bay ambient conditions where the standard industrial -I part would be marginal. The 40MHz core handles both the CAN stack and local motor-control PWM simultaneously, and DMA offloads message buffering. Because the dsPIC33F family is pin compatible with the PIC24HJ family per Microchip, the same board can migrate between CAN-enabled variants as the network requirements evolve, protecting the PCB investment across product generations.
Recommended
Embedded DSP and Audio Processing
The DSP instruction set of the dsPIC33FJ64MC802-H/SO - hardware MAC, dual operand fetch, and modular addressing - makes it a capable low-cost embedded DSP for filtering, transforms, and audio preprocessing at 20 MIPS. Applications include acoustic feedback suppression, sensor spectrum analysis, and simple audio effects where a full DSP would be over-specified. DMA services the codec or ADC data stream so the CPU budget stays available for algorithm computation. SEGGER lists the dsPIC33FJ64MC802 among supported devices, so production flash programming and debugging tools are readily available. The 64KB Flash accommodates substantial coefficient tables and multi-stage filter implementations.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC802-H/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64MC802-I/SO | DSPIC33FJ64MC202-I/SO | DSPIC33FJ32MC302-I/SO | DSPIC33FJ32MC202-I/SO | DSPIC33FJ32MC101T-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 64 KB | 64 KB | 32 KB | 32 KB | 32 KB |
| Clock Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| 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 |
| Subfamily / Peripherals | MC802 - Motor Control + advanced analog, CAN, DMA | MC802 - identical | MC202 - value analog set | MC302 - full MC analog set | MC202 - value analog set | MC101 - entry feature set |
| Temperature Grade | -H (extended) | -I (industrial -40C to +85C) | -I (industrial) | -I (industrial) | -I (industrial) | -I (industrial) |
| Lifecycle Status | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
Key Differentiators
- Extended temperature rating (vs DSPIC33FJ64MC802-I/SO)
- Full Motor Control analog set (vs DSPIC33FJ64MC202-I/SO)
- Maximum program memory in footprint (vs DSPIC33FJ32MC302-I/SO)
Design Notes
Power the DSPIC33FJ64MC802-H/SO from a regulated 3.3V rail within the 3.0V-3.6V specification. Do not connect VDD directly to 5V USB or logic supplies - a simple 3.3V LDO (e.g., a 500mA LP2985-class part) is sufficient given the low core current. Place 0.1uF ceramic decoupling capacitors at each VDD pin within 5mm of the package, plus one 4.7-10uF bulk capacitor per supply domain. Estimated: a DSC core drawing tens of milliamps at 3.3V dissipates well under 0.2W, so the 28-SOIC needs no heatsinking.
For motor-control or digital-power use, keep the Motor Control PWM output traces short and routed away from the analog sensing lines feeding the advanced-analog inputs. Use a solid ground plane and star-connect the analog ground at one point. Route the OSC1/OSC2 crystal traces with guard ground and keep them under 15mm. The 1.27mm-pitch 28-SOIC footprint allows wide, low-inductance traces that help PWM edge integrity into gate drivers.
Watch the temperature grade: the -H suffix part is the extended-rating variant and typically costs more and stocks shallower than the -I grade. Do not substitute -I into an application validated for -H ambient limits without thermal analysis. Also verify Flash sizing before downgrading to 32KB family alternatives (MC302/MC202) - compile with the 32KB device selected to catch overflow early, and confirm any 802-specific advanced-analog features are actually used by your firmware.
Compliance Information
Package described as lead-free plastic (digichip specification data). Full RoHS/REACH certificate detail should be confirmed from Microchip's official compliance documentation.
