DSPIC33EP32MC204-H/ML - 70 MIPS Motor Control DSC | Microchip
MPN: DSPIC33EP32MC204-H/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.16 | $41.60 |
| 100 | $3.7 | $370.00 |
| 500 | $3.33 | $1,665.00 |
| 1,000 | $2.97 | $2,970.00 |
DSPIC33EP32MC204-H/ML Overview
A digital signal controller combines the compute architecture of a microcontroller with the DSP capabilities of a digital signal processor. In the power-management hierarchy of embedded systems, a DSC sits between general-purpose MCUs and dedicated DSPs: it offers deterministic single-cycle multiply-accumulate (MAC) instructions for control-loop math while retaining the peripherals, interrupt structure, and ease of use of a conventional 16-bit MCU.
Key features of the DSPIC33EP32MC204-H/ML include the dsPIC33E core executing at 70 MIPS, dedicated motor-control peripherals such as a high-speed PWM module with complementary outputs and dead-time insertion, multiple UART/SPI/I2C communication interfaces, several 16-bit timers, and analog resources including ADC inputs and comparators. The -H suffix denotes an extended operating temperature grade suited to high-reliability environments.
Architecturally, the dsPIC33E core uses an enhanced Harvard bus structure with a 17-bit by 17-bit hardware multiplier, 32-bit multiply support, and a flexible DSP engine with two 40-bit accumulators, enabling fast execution of PID, Clarke/Park transforms, and space-vector modulation for precision motor control.
Typical applications include three-phase PMSM and BLDC motor drives, drone propeller ESCs (Microchip publishes a dedicated Drone Propeller Reference Design based on this exact device), digital power supplies, and industrial automation nodes.
When designing with this device, verify that the 4 KB RAM budget accommodates your control-loop state variables and DSP buffers, and decouple the 3.3 V rail with low-ESR ceramics at both VDD/VDDCORE pins per the Microchip reference layout.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33EP32MC204-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 DSPIC33EP32MC204-H/ML (same form factor and footprint) — differing in Package, Operating Temperature, RAM, Core, Flash Program Memory.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32MC204-I/ML
✅ Drop-In✓ In Stock
$2.05 / Unit
View Datasheet →DSPIC33EP32MC204-H/MV
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP256MC204T-I/MV
✅ Drop-In✓ In Stock
$3.34 / Unit
View Datasheet →DSPIC33EP64MC204-I/ML
✅ Drop-In✓ In Stock
$3.6 / Unit
View Datasheet →DSPIC33EP32GP204-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP256MC204-I/ML
✅ Drop-In✓ In Stock
$3.4 / Unit
View Datasheet →DSPIC33EP32MC204T-I/ML
✅ Drop-In✓ In Stock
$2.05 / Unit
View Datasheet →DSPIC33EP32MC204-H/ML Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit DSC |
| Performance | 70 MIPS |
| Maximum Clock Frequency | 60 MHz |
| Flash Program Memory | 32 KB |
| SRAM | 4 KB |
| Supply Voltage | 3.3 V |
| Package | 44-pin QFN with exposed pad (ML) |
| Mounting Type | Surface Mount |
| Qualification | AEC-Q100 Automotive |
| Temperature Grade | -H grade (high-reliability operating range) |
| Communication Interfaces | UART, SPI, I2C |
| Timers | Multiple 16-bit timers |
| PWM | High-speed motor-control PWM with dead-time insertion |
| Analog Peripherals | ADC inputs, comparators |
| Series | dsPIC33EP32MC204 (dsPIC33EP 33EP Series) |
| Application Focus | Precision motor control, digital power |
DSPIC33EP32MC204-H/ML 44-pin qfn with exposed pad (ml) Pin Configuration Guide
Pin configuration for DSPIC33EP32MC204-H/ML (44-pin qfn with exposed pad (ml) 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 DSPIC33EP32MC204-H/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP32MC204-H/ML is suitable for 6 applications: Drone ESC / Quadcopter Motor Drive, Industrial Servo and PMSM Drives, Digital Power Supplies and Converters, Automotive Body and E-Mobility Systems, Embedded DSP Signal Processing Nodes, IoT Sensor and Actuator Nodes.
Drone ESC / Quadcopter Motor Drive
The DSPIC33EP32MC204-H/ML is the controller used in Microchip's official Drone Propeller Reference Design, a low-cost evaluation platform targeting quadcopter propellers driven by three-phase PMSM or BLDC motors. Its 70 MIPS DSP engine executes field-oriented control (FOC) with single-cycle MAC instructions, while the high-speed PWM module generates complementary outputs with programmable dead time for the three-phase inverter bridge. The ADC samples phase currents with flexible, independent trigger sources synchronized to the PWM, enabling precise current-loop control at kHz rates. The 44-pin QFN exposed-pad package keeps the layout compact and low-inductance for flight-controller electronics.
Recommended
Industrial Servo and PMSM Drives
In industrial servo drives and PMSM positioning systems, the DSPIC33EP32MC204-H/ML provides the deterministic control performance required for high-bandwidth current, velocity, and position loops. The dsPIC33E core runs at 70 MIPS, giving enough headroom to compute Clarke/Park transforms, PID structures, and space-vector modulation within one PWM period. Integrated comparators provide fast overcurrent protection paths without CPU intervention, while multiple UART/SPI/I2C ports interface with encoders, host PLCs, and HMI panels. The AEC-Q100 qualification and -H grade add robustness margin for factory-floor environments with wide temperature swings and continuous duty operation.
Recommended
Digital Power Supplies and Converters
For digitally controlled AC/DC and DC/DC converters, the DSPIC33EP32MC204-H/ML replaces analog control loops with a firmware-defined compensator. The high-speed PWM supports complementary outputs, dead-time insertion, and faultShutdown modes suited to half-bridge and full-bridge topologies, while the ADC's flexible independent trigger sources allow mid-PWM-cycle sampling of output voltage and inductor current for peak or average current-mode control. The 70 MIPS core sustains switching frequencies in the hundreds of kHz with closed-loop compensation computed each cycle. The 44-pin QFN footprint integrates controller and gate-drive logic on a single compact power-supply control PCB.
Recommended
Automotive Body and E-Mobility Systems
Because the DSPIC33EP32MC204-H/ML is AEC-Q100 qualified with a high-reliability -H temperature grade, it targets automotive-adjacent applications such as DC coolant pump controllers, blower and fan drives, window-lift and seat-adjustment motor control, and small e-mobility traction drives. The device's DSP engine handles sensorless motor algorithms including back-EMF observers, while its comparators and fault-managed PWM provide hardware-level protection required by automotive safety practice. The exposed-pad QFN supports thermally robust soldering onto automotive control boards, and multiple communication ports connect to vehicle LIN/CAN-over-UART bridge architectures.
Recommended
Embedded DSP Signal Processing Nodes
Beyond motor control, the DSPIC33EP32MC204-H/ML serves as a low-cost DSP engine for sensor preprocessing: FIR/IIR filtering, FFT-based vibration analysis, RMS metering, and audio-band processing. The 17x17-bit hardware multiplier and dual 40-bit accumulators execute MAC-heavy kernels in single cycles, and modulo bit-reversed addressing accelerates FFT buffer management. With 32 KB Flash and 4 KB SRAM, the device fits compact filter-and-report applications where a full DSP would be oversized. Its 3.3 V single-supply operation and integrated peripherals reduce total BOM count compared with MCU-plus-DSP two-chip solutions in condition-monitoring nodes.
Recommended
IoT Sensor and Actuator Nodes
The DSPIC33EP32MC204-H/ML fits smart IoT nodes that combine local actuation with signal processing: motorized valves, pumps, dampers, and precision positioning stages in building automation and agriculture. The multiple UART, SPI, and I2C ports interface with wireless modules and sensors, while the motor-control PWM directly drives small BLDC or stepper actuators without an external controller. Its 3.3 V supply aligns with common battery-backed and low-power system rails, and the 44-pin QFN saves board area in compact enclosures. The AEC-Q100 qualification provides environmental robustness beyond standard consumer IoT requirements, extending field lifetime.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32MC204-H/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32MC204-I/ML | DSPIC33EP32MC204-H/MV | DSPIC33EP64MC204-I/ML | DSPIC33EP256MC204T-I/MV |
|---|---|---|---|---|---|
| Package | 44-pin QFN (ML), exposed pad | 44-pin QFN (ML) - same | 44-pin QFN (MV) - same footprint | 44-pin QFN (ML) - same | 44-pin QFN (MV) - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 64 KB | 256 KB |
| Core Performance | 70 MIPS | 70 MIPS | 70 MIPS (60 MHz clock) | 70 MIPS | 70 MIPS |
| Temperature Grade | -H (high-reliability grade) | -I (industrial) | -H (high-reliability) | -I (industrial) | -I (industrial) |
| Motor-Control Peripherals | High-speed PWM, ADC, comparators | Identical (same die) | Identical (same die) | Identical MC peripherals | Identical MC peripherals |
Key Differentiators
- AEC-Q100 automotive qualification with -H high-reliability grade (vs DSPIC33EP32MC204-I/ML)
- Purpose-built motor-control pedigree (vs DSPIC33EP32GP204-I/ML)
- Migration path without respin (vs DSPIC33EP256MC204T-I/MV)
Design Notes
Solder the exposed pad of the 44-pin QFN (ML) to a solid grounded copper pour with an array of thermal vias. The exposed pad is the primary ground return and thermal path; an unsoldered or voided pad causes intermittent ground faults and elevated junction temperatures that are hard to diagnose. Follow the Microchip dsPIC33EP reference layout for QFN parts: via stitching under the pad, solder mask opening per the package outline drawing in family data sheet DS70000657J.
Provide clean 3.3 V decoupling at every VDD pin pair plus the VDDCORE regulator capacitor, per the family data sheet. dsPIC33EP devices use an on-chip core regulator; omitting or misplacing the VDDCORE capacitor causes brown-out resets and erratic oscillator behavior, especially when driving PWM gates with high di/dt. Place a 0.1 uF ceramic within 2 mm of each supply pin and bulk capacitance (10 uF) near the board entry. Estimated: gate-drive transient currents of hundreds of mA per edge demand low-impedance ground return through the exposed pad.
The 4 KB SRAM budget fills quickly when running FOC: three-phase current buffers, PI states, filter histories, and communication buffers. Estimate stack plus heap usage in MPLAB X (Memory Usage gauge) before committing to the 32 KB part; if RAM exceeds ~70% utilization, migrate to the pin-compatible DSPIC33EP256MC204 in the same 44-QFN footprint instead of shrinking buffers, which causes hard-to-reproduce overflow corruption under interrupt load.
Compliance Information
AEC-Q100 automotive qualification confirmed by datasheets.com part details (updated 01-FEB-2025) and Hotenda listing. RoHS/REACH status not stated in provided data; verify on Microchip product page.
