DSPIC33EP32MC202-I/MM - 70 MIPS 16-bit Motor Control DSC | Microchip
MPN: DSPIC33EP32MC202-I/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.1 | $3.10 |
| 10 | $2.85 | $28.50 |
| 100 | $2.6 | $260.00 |
| 500 | $2.46 | $1,230.00 |
| 1,000 | $2.25 | $2,250.00 |
DSPIC33EP32MC202-I/MM Overview
A digital signal controller combines the computational throughput of a digital signal processor (DSP) with the integrated peripherals and deterministic architecture of a microcontroller (MCU). Within the power-management hierarchy of embedded systems, the DSC sits between a general-purpose MCU and a dedicated DSP, offering single-cycle MAC (multiply-accumulate) instructions plus a DSP engine, making it a natural fit for closed-loop control systems that require both fast math and flexible I/O.
Key differentiating features of the dsPIC33EP32MC202 include the 70 MIPS dsPIC DSC core with integrated DSP instructions, a High-Speed PWM module purpose-built for motor control with complementary and independent outputs, multiple input-capture and output-compare channels, and enhanced on-chip peripherals that reduce external component count. Serial connectivity options in the family include UART, SPI, and I2C, supporting communication with gate drivers, sensors, and host systems.
Technically, the device is built around the enhanced dsPIC33E architecture, which provides a 16-bit data path with 32-bit-wide instructions fetched in a single cycle, hardware divide support, two 40-bit accumulators, and dual operand fetch for efficient FIR/IIR filtering and field-oriented control (FOC) loops. The Flash program memory and configuration scheme support in-circuit programming and debugging via the standard Microchip ICSP interface (ICD 3, PICkit 3/4, REAL ICE).
Typical applications include brushless DC (BLDC) and permanent magnet synchronous motor (PMSM) drives, digital power conversion (AC-DC, DC-DC), inverters, power factor correction stages, and embedded control systems such as pumps, fans, and industrial actuators where energy efficiency and precise, high-frequency PWM control are critical.
When designing with this DSC, verify the 3 V to 3.6 V supply tolerance early in the schematic stage and pair it with a suitable gate driver for the PWM outputs; decouple the VDD pins with low-ESR ceramics placed close to the QFN package. Note that the QFN package exposes a thermal pad that should be soldered to a grounded copper pour for best thermal and electrical performance.
This page synthesizes distributor pricing (as of 2026-09-25), drop-in alternative options, and practical design guidance not found on the manufacturer product page, providing consolidated selection data for engineers and buyers.
Drop-in alternatives for DSPIC33EP32MC202-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 DSPIC33EP32MC202-I/MM (same form factor and footprint) — differing in Operating Temperature, Package, Core, Qualification, RAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32MC202-E/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.3 / Unit
View Datasheet →DSPIC33EP32MC202T-E/MM
✅ Drop-In✓ In Stock
$3.05 / Unit
View Datasheet →DSPIC33EP32GP502T-E/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.98 / Unit
View Datasheet →DSPIC33EP16MC202-I/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32MC202-I/SS
✅ Drop-In✓ In Stock
$2.68 / Unit
View Datasheet →DSPIC33EP32MC202-I/MM Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC DSC core with DSP engine |
| Maximum CPU Speed | 70 MIPS (60 MHz per Mouser listing) |
| Program Memory (Flash) | 32 KB |
| RAM | 4 KB |
| Operating Voltage | 3 V to 3.6 V |
| Operating Temperature | -40C to +85C (industrial, I grade) |
| Package | 28-QFN-S (6x6 mm) |
| Mounting Type | Surface Mount |
| Number of Pins | 28 |
| PWM Module | High-Speed PWM for motor control |
| Timers/Capture/Compare | Input Capture and Output Compare peripherals |
| Qualification | E-temperature variants AEC-Q100 qualified (per Microchip USA for -E/MM) |
| Typical Price | From $2.4603 (LCSC, as of 2026-09-25) |
DSPIC33EP32MC202-I/MM 28-qfn-s (6x6 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP32MC202-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 DSPIC33EP32MC202-I/MM.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP32MC202-I/MM is suitable for 6 applications: BLDC Motor Control, PMSM Field-Oriented Control Drives, Digital Power Conversion (SMPS), Industrial Pumps and Fans, Power Inverters and UPS, Embedded Industrial Control Nodes.
BLDC Motor Control
The DSPIC33EP32MC202-I/MM fits brushless DC (BLDC) motor drives because its MC-family High-Speed PWM module provides complementary outputs with programmable dead time for six-step and sensorless FOC schemes, while the 70 MIPS core with single-cycle MAC instructions executes field-oriented control math in real time at PWM frequencies in the tens of kilohertz. Input-capture channels handle hall-sensor or back-EMF feedback with microsecond resolution. In a typical design, the DSC runs the control loop between the 3.3 V rail and a gate driver, updating PWM duty cycle each PWM period; the 32 KB Flash holds FOC firmware plus a communication stack with headroom to spare. The main trade-off versus a larger dsPIC33 is limited ADC and PWM channel count, suiting single-motor designs.
Recommended
PMSM Field-Oriented Control Drives
For permanent magnet synchronous motor (PMSM) drives, the DSPIC33EP32MC202-I/MM is a strong fit because its 70 MIPS dsPIC DSC core executes the Clarke/Park transforms, PI current loops, and SVPWM generation required for FOC at 10-20 kHz PWM rates without resorting to lookup-table approximations. The integrated DSP engine with 40-bit accumulators prevents overflow during Park-transform arithmetic, and the High-Speed PWM module's dead-time insertion protects the inverter bridge. Positioned between a low-side shunt or inline current-sense amplifier and the gate driver, the DSC closes the current loop in a single PWM interrupt; the -40C to +85C industrial grade covers factory-floor ambient conditions, and the E-grade variant extends to +125C for under-hood or sealed-enclosure drives.
Recommended
Digital Power Conversion (SMPS)
The DSPIC33EP32MC202-I/MM suits digital switch-mode power supplies such as AC-DC front ends, DC-DC converters, and power factor correction stages. Its 70 MIPS core and deterministic interrupt latency allow closed-loop voltage/current regulation at PWM frequencies high enough to shrink magnetics, while the MC-family PWM module supports complementary outputs and dead-band control needed for half-bridge and full-bridge topologies. The 3 V to 3.6 V operating range integrates cleanly with the 3.3 V bias rail typically derived from an auxiliary winding. Microchip's companion GS-family parts (e.g., dsPIC33EP32GS202) extend this concept with dedicated SMPS peripherals; for the MC202, designers typically implement control loops in firmware with capture/compare peripherals used for cycle-by-cycle current limiting.
Recommended
Industrial Pumps and Fans
In HVAC blowers, circulation pumps, and industrial fans, the DSPIC33EP32MC202-I/MM provides the sensorless motor control and communication capability these products need in a $2-3 controller. The 70 MIPS core runs sensorless FOC or block-commutation firmware while UART or I2C links report speed, fault, and telemetry data to a host controller or BMS. The industrial -40C to +85C rating matches plant ambient conditions, and the 28-pin QFN-S 6x6 mm footprint keeps the control PCB compact enough to mount on the motor housing. Using the input-capture peripherals for zero-cross detection enables hall-less commutation, and the 32 KB Flash leaves room for a Modbus or proprietary serial stack alongside the motor control code.
Recommended
Power Inverters and UPS
Single-phase inverters and small UPS systems benefit from the DSPIC33EP32MC202-I/MM's combination of a 70 MIPS DSP core, complementary PWM outputs, and fast input-capture peripherals for grid-synchronization (zero-cross and frequency tracking of the AC mains). The DSC generates a sinusoidal PWM (SPWM) carrier from firmware while the PWM module handles dead-time insertion for the H-bridge, and the 32 KB Flash accommodates control plus protection firmware such as overcurrent, brownout, and surge-ride-through routines. The 3 V to 3.6 V logic supply is isolated from the power stage via optocouplers or digital isolators on the PWM lines; verify that PWM propagation delay across the isolation barrier is acceptable at your switching frequency.
Recommended
Embedded Industrial Control Nodes
Beyond motor drive, the DSPIC33EP32MC202-I/MM works as a general embedded control node where deterministic 16-bit processing, analog-friendly peripherals, and a DSP engine are useful: solar-charge controllers, welding equipment, lighting ballasts, and sensor conditioning systems. The 70 MIPS core outperforms typical 8-bit MCUs on filter-heavy tasks such as IIR filtering of ADC samples, while UART, SPI, and I2C interfaces connect displays, EEPROMs, and supervisory networks. The QFN-S 6x6 mm package with exposed pad simplifies compact two-layer designs, and the -40C to +85C grade covers unheated enclosures. As an MCU-plus-DSP consolidation, it can replace separate controller and signal-conditioning chips, reducing BOM count and board area in cost-sensitive industrial products.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32MC202-I/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32MC202-E/MM | DSPIC33EP32MC202T-E/MM | DSPIC33EP32GP502T-E/MM | DSPIC33EP16MC202-I/MM | DSPIC33EP32MC202-I/SS |
|---|---|---|---|---|---|---|
| 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-S (6x6 mm) - same | SOIC-28 (different body) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS (60 MIPs quoted by Microchip USA) | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB | 32 KB |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +125C (AEC-Q100) | -40C to +125C | -40C to +85C | -40C to +85C |
| AEC-Q100 Qualification | No | No | Yes (per Microchip USA) | No | No | No |
| Family / Peripheral Emphasis | MC - High-Speed PWM motor control | MC - identical peripherals | MC - identical peripherals | GP - general purpose peripheral set | MC - identical peripherals | MC - identical peripherals |
Key Differentiators
- Extended automotive temperature option in same footprint (vs DSPIC33EP32MC202T-E/MM)
- Dedicated motor-control peripherals (vs DSPIC33EP32GP502T-E/MM)
- Double the program memory of the entry variant (vs DSPIC33EP16MC202-I/MM)
Design Notes
The DSPIC33EP32MC202-I/MM requires a 3 V to 3.6 V supply. Use an LDO or buck converter with better than 3% accuracy, and confirm worst-case droop under inrush and debugger-attached conditions stays above 3.0 V. Decouple each VDD pin pair with 100 nF ceramics placed within 2 mm of the pins plus a 4.7-10 uF bulk capacitor per rail. On motor-control boards sharing a supply with gate drivers, isolate VDD with a ferrite bead and local bulk capacitance to reject PWM-injected ripple.
The 28-QFN-S 6x6 mm package has an exposed pad under the die that must be soldered to a grounded copper pour - it is a primary ground return for the DSC, not merely a thermal feature. Use a 3x3 or 4x4 via array under the pad to tie it to the ground plane. Keep the crystal/OSC traces short and guard them from PWM and gate-driver lines. For the PICkit/ICD programming header, include series resistors on PGD/PGC to protect against back-drive from the target circuit.
The dsPIC33E family uses Peripheral Pin Select (PPS) for many digital functions - UART, SPI, and PWM outputs must be explicitly mapped in firmware, and a design that copies pin assignments from a non-PPS PIC will not work. Also note that the T-grade E variant (DSPIC33EP32MC202T-E/MM) lists 2 KB RAM versus 4 KB on the -I part per Microchip USA data; firmware using more than 2 KB of RAM will not port directly. Verify configuration bits (OSC, watch-dog, brown-out) before first flash.
Compliance Information
The standard -I/MM part is not AEC-Q100 qualified; the DSPIC33EP32MC202T-E/MM variant is AEC-Q100 qualified per Microchip USA product data. RoHS/REACH/lead-free status was not stated in the provided web data - confirm on the Microchip product page.
