DSPIC33FJ32MC204-H/ML - 16-bit 40 MIPS DSC 32KB Flash | Microchip
MPN: DSPIC33FJ32MC204-H/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.16 | $41.60 |
| 100 | $3.71 | $371.00 |
| 500 | $3.35 | $1,675.00 |
| 1,000 | $2.98 | $2,980.00 |
DSPIC33FJ32MC204-H/ML Overview
A Digital Signal Controller combines the computational power of a DSP with the peripheral integration and ease of use of a microcontroller. Within the embedded control hierarchy, the dsPIC33FJ sits between general-purpose MCUs and dedicated DSPs, offering a modified Harvard 16-bit core with DSP-engine multiply-accumulate instructions, making it a popular power management IC and motor control processor class for embedded systems.
Key features include two PWM generators with independent timebases for motor control, up to four high-speed analog comparators with direct PWM fault integration, a 10-bit ADC, and Peripheral Pin Select that maps digital peripherals to arbitrary pins. The 40 MIPS core executes DSP instructions such as MAC and dual-fetch, enabling FOC (field-oriented control) firmware on a single chip.
Architecturally, the dsPIC33F family shares code compatibility with PIC24F, PIC24H, and dsPIC30F devices, giving designers a seamless migration path upward or downward in memory and pin count without rewriting firmware. The C compiler toolchain (MPLAB XC16) and MPLAB X IDE support the full family.
Typical applications include brushless DC and PMSM motor drives, digital power supplies (switching converters, UPS), sensorless motor control with back-EMF, and automotive auxiliary systems. The PWM-comparator-fault chain makes closed-loop power conversion especially compact.
Design consideration: as a /H temperature-grade device, verify your system's ambient profile against the extended temperature rating, and always decouple all VDD/VSS pin pairs with 0.1 uF ceramics placed within 3 mm of the pads.
This page adds value beyond the manufacturer datasheet by consolidating drop-in alternatives, application guidance, cross-reference context, and distributor sourcing information in one engineer-oriented reference.
Drop-in alternatives for DSPIC33FJ32MC204-H/ML — 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 DSPIC33FJ32MC204-H/ML (same form factor and footprint) — differing in Package, Operating Temperature, Supply Voltage Range, Core Architecture, Flash Program Memory.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32MC204-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.37 / Unit
View Datasheet →DSPIC33FJ32MC204-E/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.85 / Unit
View Datasheet →DSPIC33FJ16MC304-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32GP304-I/ML
✅ Drop-In✓ In Stock
$3.49 / Unit
View Datasheet →DSPIC33FJ32MC102T-I/ML
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →DSPIC33FJ32MC204-H/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC |
| Max CPU Speed | 40 MIPS (40 MHz clock) |
| Flash Program Memory | 32 KB |
| SRAM | 2 KB |
| Supply Voltage Range | 3 V to 3.6 V |
| I/O Ports | 35 |
| PWM Generators | 2 (independent timebases) |
| High-Speed Comparators | Up to 4 |
| Peripheral Pin Select (PPS) | Yes |
| Package | 44-QFN (ML), 8x8 mm |
| Mounting Type | Surface Mount |
| Life Cycle Stage | ACTIVE |
| ROM Type | Flash |
| Family Migration | Compatible with PIC24F, PIC24H, dsPIC30F |
| Product Family | dsPIC33FJ32MC202/204 Motor Control family |
DSPIC33FJ32MC204-H/ML 44-qfn (ml), 8x8 mm Pin Configuration Guide
Pin configuration for DSPIC33FJ32MC204-H/ML (44-qfn (ml), 8x8 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 DSPIC33FJ32MC204-H/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32MC204-H/ML is suitable for 6 applications: BLDC/PMSM Motor Control, Digital Power Supplies, Sensorless Motor Drives, Industrial Automation Nodes, Automotive Auxiliary Systems, Embedded Signal Processing and Sensing.
BLDC/PMSM Motor Control
The DSPIC33FJ32MC204-H/ML is purpose-built for brushless DC and permanent-magnet synchronous motor control. Its two PWM generators with independent timebases can drive complementary PWM pairs for three-phase inverters, while up to four high-speed comparators connect directly to PWM fault inputs for hardware-level overcurrent shutdown without CPU latency. At 40 MIPS with a DSP engine executing multiply-accumulate instructions, the core sustains field-oriented control (FOC) loops at switching frequencies in the tens of kilohertz. Peripheral Pin Select lets the engineer route capture and PWM signals optimally on the 35-I/O, 44-QFN footprint. Combine with a gate driver such as the MCP14700-class devices or a three-phase driver IC to complete a compact sensorless or encoder-based drive.
Recommended
Digital Power Supplies
Digital switching power supplies, UPS systems, and DC-DC converters benefit directly from the MC204's architecture. The PWM generators' independent timebases support phase-shifted and interleaved topologies, while the high-speed comparators provide cycle-by-cycle current limiting through the direct comparator-to-PWM fault path, protecting the power stage in microseconds. The 10-bit ADC samples feedback voltages and currents for the control loop, and the 40 MIPS DSP engine executes proportional-integral compensators with headroom. The 3 V to 3.6 V supply and 44-QFN 8x8 mm package suit compact controller cards. Firmware portability within dsPIC33F lets a single code base scale from this 32 KB Flash part to higher-memory family members as features grow.
Recommended
Sensorless Motor Drives
Sensorless BLDC and PMSM control relies on precise back-EMF or shunt-current observation, which the DSPIC33FJ32MC204-H/ML handles well. Its high-speed comparators detect zero-cross events and feed PWM fault/capture logic directly, while the ADC with motor-control-specific sampling can synchronize current measurements to PWM centers to avoid switching noise. With 40 MIPS and hardware MAC instructions, sliding-mode or flux-observer estimators run comfortably. Peripheral Pin Select allows remapping of input capture and PWM outputs during board bring-up, reducing layout constraints on the 44-QFN package. The 35 available I/O support additional protection circuits, brake control, and communication interfaces such as UART to a host controller.
Recommended
Industrial Automation Nodes
In factory automation, the DSPIC33FJ32MC204-H/ML serves as an intelligent actuator or sensor node controller. Its 40 MIPS 16-bit core handles protocol stacks (UART, SPI, I2C) mapped freely via Peripheral Pin Select across the 35 I/O, while dual PWM generators drive actuators, dampers, or small motors. The 3 V to 3.6 V operation interfaces cleanly with 3.3 V logic, and the 44-QFN 8x8 mm package fits dense control boards. Family code compatibility with PIC24F and dsPIC30F means legacy firmware ports with minimal rework, an important factor in long-lived industrial platforms. The high-speed comparators add hardware supervision for limit switches and overcurrent events, offloading the CPU for application logic.
Recommended
Automotive Auxiliary Systems
Auxiliary automotive electronics - window lift modules, small pump controllers, HVAC actuators - can leverage the DSPIC33FJ32MC204-H/ML's motor-control peripherals and extended /H temperature grade. The direct comparator-to-PWM fault path provides fast hardware protection for inductive loads, and the dual PWM timebases drive brushed DC H-bridges or BLDC stages. At 40 MIPS, the core runs control loops plus LIN/CAN-style communication handling on one chip. The 44-QFN (ML) 8x8 mm lead-free plastic package supports compact, thermally efficient boards, and migration paths to AEC-qualified family variants let the same firmware scale into fully qualified platforms. Always verify grade-specific qualification requirements for your end-application before release.
Recommended
Embedded Signal Processing and Sensing
Beyond motor control, the dsPIC33F DSP engine makes the MC204-H/ML effective for embedded signal processing: sensor fusion, active filtering, and power-quality monitoring. The 40 MIPS core executes FIR/IIR filters and FFT windows with hardware multiply-accumulate support, while the 10-bit ADC captures multiple channels for simultaneous condition monitoring. Peripheral Pin Select maps capture timers and communication ports to optimal pins on the 35-I/O 44-QFN device, easing mixed analog/digital layouts. With 32 KB Flash and 2 KB SRAM, the part fits compact algorithms without external memory. Systems can start on this low-pin-count device and migrate to larger dsPIC33F members as data-path complexity grows, preserving tooling and code investment.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32MC204-H/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32MC204-I/ML | DSPIC33FJ32MC204-E/ML | DSPIC33FJ16MC304-I/ML | DSPIC33FJ32GP304-I/ML | DSPIC33FJ32MC102T-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-QFN (ML) 8x8 mm | 44-QFN (ML) 8x8 mm - same | 44-QFN (ML) 8x8 mm - same | 44-QFN (ML) 8x8 mm - same | 44-QFN (ML) 8x8 mm - same | 44-QFN (ML) 8x8 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 16 KB | 32 KB | 12 KB |
| Family / Peripheral Set | Motor Control (MC): 2 PWM generators, up to 4 comparators | Motor Control - same | Motor Control - same | Motor Control - same topology | General Purpose (GP) peripherals | Motor Control (MC102 reduced set) |
| Temperature Grade | /H extended grade | /I industrial | /E extended | /I industrial | /I industrial | /I industrial |
| I/O Count | 35 | 35 | 35 | 35 | 35 | 35 |
Key Differentiators
- Motor Control PWM architecture with independent timebases (vs DSPIC33FJ32GP304-I/ML)
- Extended /H temperature grade (vs DSPIC33FJ32MC204-I/ML)
- Seamless family migration with Peripheral Pin Select (vs DSPIC33FJ16MC304-I/ML)
Design Notes
The DSPIC33FJ32MC204-H/ML operates from a single 3 V to 3.6 V rail (nominal 3.3 V). Decouple every VDD/VSS pair with 0.1 uF X7R ceramic capacitors placed within 3 mm of the pads, plus one bulk 10 uF capacitor per board section. Avoid routing motor or power-stage return currents through the controller ground; use a star ground or solid ground plane under the QFN exposed pad, and solder the center pad to the plane for both grounding and thermal relief.
Peripheral Pin Select (PPS) is powerful but a common source of bring-up failures: digital peripherals must be explicitly locked after mapping (write the unlock sequence), and analog-capable pins default to analog mode at reset, disabling digital inputs. Always clear the ANSx bits for pins used as digital I/O. Also verify the configuration (CONFIG) words for oscillator selection - an incorrect primary oscillator setting is the most frequent cause of a 'dead' first-turn board at the expected 40 MIPS.
When using the motor-control PWM to drive an inverter, keep PWM output traces short and away from ADC feedback lines to prevent switching coupling into the 10-bit ADC readings. Synchronize ADC sampling to the PWM center (trigger from the PWM module) so current samples avoid switching edges - this is the pattern shown in Microchip's motor-control application examples for the dsPIC33FJ family. Add small series resistors (22-33 ohm) on PWM outputs driving long traces or gate-driver inputs to damp ringing.
Compliance Information
Distributor listing describes a lead-free plastic QFN package; formal RoHS/REACH certificates should be downloaded from the Microchip product page for this exact MPN.
