DSPIC33EP32MC204T-I/PT - 60MHz 16-bit DSC, 44-TQFP | Microchip
MPN: DSPIC33EP32MC204T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.31 | $2.31 |
| 10 | $2.13 | $21.30 |
| 100 | $1.94 | $194.00 |
| 500 | $1.78 | $890.00 |
| 1,000 | $1.62 | $1,620.00 |
DSPIC33EP32MC204T-I/PT Overview
A digital signal controller combines the control peripherals of a microcontroller with the multiply-accumulate DSP engine of a digital signal processor, sitting in the hierarchy: DSC -> 16-bit MCU -> embedded processor. DSCs like this one are purpose-built for closed-loop control systems where fast interrupt response and hardware DSP math must coexist in a single chip.
Key features include high-speed PWM modules for motor control and power conversion, integrated analog peripherals, CAN and UART/SPI/I2C serial interfaces, and industrial temperature operation (-40C to +85C, indicated by the I suffix). The T prefix denotes Tape and Reel packaging for automated assembly.
The dsPIC33EP architecture provides a pipelined 16-bit core with DSP instruction support (MAC, DSP multiply), multiple internal buses, and deterministic interrupt latency, allowing precise current loops in field-oriented motor control and digital power supplies.
Typical applications include brushless DC and PMSM motor drives, drone propeller/ESC control (Microchip ships a dsPIC33EP32MC204 drone propeller reference design), digital power supplies, and industrial automation nodes requiring CAN connectivity.
Design consideration: the 44-TQFP requires attention to decoupling (place 0.1 uF ceramics at each VDD pin pair) and a solid ground plane for ADC and PWM noise performance.
This page adds value beyond the manufacturer datasheet by synthesizing drop-in alternatives, distributor pricing context, comparison tables, and practical design notes in one place.
Drop-in alternatives for DSPIC33EP32MC204T-I/PT — 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 DSPIC33EP32MC204T-I/PT (same form factor and footprint) — differing in Package, Core Architecture, Packaging, Program Memory (Flash), Series.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32MC204T-E/PT
✅ Drop-In✓ In Stock
$3.1 / Unit
View Datasheet →DSPIC33EP32MC204-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP32GP504T-I/PT
✅ Drop-In✓ In Stock
$2.15 / Unit
View Datasheet →DSPIC33FJ32MC204-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP32MC204T-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33EP 16-bit DSC core |
| CPU Speed | 60 MHz |
| Core Performance | 70 MIPS class dsPIC DSC core |
| Program Memory (Flash) | 32 KB |
| SRAM | 4 KB |
| Package | 44-pin TQFP (PT), 10x10 mm, 0.8 mm pitch |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Supply Voltage | 3.3 V (nominal) |
| Peripherals | High-Speed PWM, CAN, UART, SPI, I2C |
| Packaging | Tape and Reel (T prefix) |
| Technology | CMOS |
| Family | dsPIC33EP (dsPIC33E family of digital signal controllers) |
| RoHS Status | Compliant |
| Primary Application Focus | Precision motor control |
DSPIC33EP32MC204T-I/PT 44-pin tqfp (pt), 10x10 mm, 0.8 mm pitch Pin Configuration Guide
Pin configuration for DSPIC33EP32MC204T-I/PT (44-pin tqfp (pt), 10x10 mm, 0.8 mm pitch 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 DSPIC33EP32MC204T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP32MC204T-I/PT is suitable for 6 applications: BLDC / PMSM Motor Control, Drone Propeller / ESC Control, Digital Power Supplies (SMPS / LLC), Industrial Automation Nodes with CAN, Embedded Audio / Signal Processing, Sensor Acquisition and Smart Sensing.
BLDC / PMSM Motor Control
The DSPIC33EP32MC204T-I/PT fits brushless DC and permanent magnet synchronous motor drives because its 60 MHz dsPIC33EP core provides the deterministic interrupt latency that field-oriented control (FOC) current loops demand, and the MC subfamily integrates high-speed PWM modules with complementary outputs and dead-time control. In a typical three-phase inverter, the DSC reads phase currents through its on-chip ADC, executes PI or FOC math using hardware DSP MAC instructions, and updates PWM duty cycles at 10-20 kHz loop rates. The integrated CAN interface supports networked industrial drives. Designers should budget CPU load carefully: a full FOC loop with sensorless estimation consumes a significant fraction of the 60 MIPS-class budget, so control-loop sample rates above 20 kHz may require optimization of the ISR code.
Recommended
Drone Propeller / ESC Control
Microchip ships a dedicated dsPIC33EP32MC204 Drone Propeller Reference Design, making this DSC a proven choice for quadcopter electronic speed controllers. The reference design combines the DSC with a MOSFET driver, CAN interface, and current-sensing resistors, demonstrating sensorless trapezoidal or sinusoidal commutation of the propeller motors. The 60 MHz core handles the fast commutation interrupts (typically 16-40 kHz PWM frequency for small drone motors) while the 4 KB SRAM holds state-machine and filter variables. The 44-pin TQFP provides sufficient PWM channels for multi-motor ESC boards, and CAN enables flight-controller communication. Because drone applications are cost-sensitive and battery powered, the 3.3 V supply and compact 10x10 mm TQFP keep the bill of materials and board area small.
Recommended
Digital Power Supplies (SMPS / LLC)
In digitally controlled AC-DC and DC-DC converters, the DSPIC33EP32MC204T-I/PT implements voltage-mode or current-mode loop compensation in firmware, replacing analog compensation networks. The high-speed PWM module supports phase-shifted full-bridge and LLC topologies with adjustable dead-time and complementary outputs, while the ADC triggers synchronized to the PWM period minimize sampling jitter. The 60 MHz core sustains control loops in the tens-of-kilohertz range, sufficient for most industrial power supplies. The CAN and UART interfaces allow digital telemetry and PMBus-style supervisory communication. A key design consideration is ADC-PWM latency: keep the sampling-to-duty-update path within one switching period, and use the interrupt-controlled PWM special event trigger so that current sampling occurs at the midpoint of the ramp, avoiding switching-noise corruption of readings.
Recommended
Industrial Automation Nodes with CAN
The integrated CAN 2.0B module makes the DSPIC33EP32MC204T-I/PT suitable for factory automation nodes such as motor-driven actuators, sensors with local control loops, and CANopen-style field devices. The 60 MHz core runs the application firmware and the CAN stack concurrently, while the high-speed PWM can drive local actuators (valves, small motors, heaters) without a second controller. The 32 KB Flash accommodates a CANopen slave stack plus application logic in a tightly optimized build; larger protocol stacks should step up to the 256 KB DSPIC33EP256MC family. The industrial -40C to +85C rating covers unconditioned factory floors. Use the UART for service diagnostics and the SPI port for local configuration memory or display interfaces.
Recommended
Embedded Audio / Signal Processing
The DSP engine of the dsPIC33EP core, with its hardware multiply-accumulate, modulo addressing, and dual operand fetch, supports moderate-rate audio filtering, tone generation, and acoustic sensing tasks. At 60 MHz, the DSPIC33EP32MC204T-I/PT can execute FIR and IIR filters for telecommunication-band audio (8-48 kHz sample rates) with headroom for protocol handling. The 12-bit-class on-chip ADC digitizes microphone or sensor inputs, and the UART/SPI ports stream data to codecs or external memory. It suits cost-driven products such as intercoms, alarm sounders, and vibration analyzers where a full audio DSP is overkill. RAM is the main constraint: 4 KB SRAM limits buffer sizes, so keep filter blocks short or move to a 256 KB/RAM-rich family member for reverberation or multi-channel processing.
Recommended
Sensor Acquisition and Smart Sensing
The DSPIC33EP32MC204T-I/PT serves as a smart sensor hub: its on-chip ADC samples analog sensors (temperature bridges, pressure transducers, current shunts) while the DSP engine applies calibration and digital filtering in real time. The 44-pin TQFP exposes enough GPIO and serial interfaces (UART, SPI, I2C) to talk to displays, host controllers, and external memory, and the 60 MHz core runs compensation algorithms such as look-up-table linearization or RMS computation. The -40C to +85C operating range fits outdoor and industrial sensing enclosures. Designers should add proper anti-alias filtering ahead of the ADC and dedicate a clean analog ground region under the chip, because the same TQFP also carries fast PWM edges that can couple noise into sensitive analog inputs if layout is careless.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32MC204T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32MC204T-E/PT | DSPIC33EP32MC204-I/PT | DSPIC33EP32GP504T-I/PT | DSPIC33FJ32MC204-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (PT), 10x10 mm | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 60 MHz | 60 MHz | 60 MHz | 60 MHz | dsPIC33F class (lower than EP) |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB class |
| Temperature Grade | -40C to +85C (I) | -40C to +125C (E), AEC-Q100 | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Peripheral Focus | MC: High-Speed PWM motor control | MC: High-Speed PWM (same die) | MC: High-Speed PWM (same die) | GP: general-purpose peripherals | MC (older 33F PWM generation) |
| Packaging Option | Tape & Reel (T) | Tape & Reel | Tray | Tape & Reel | Tray |
| Family Generation | dsPIC33EP | dsPIC33EP | dsPIC33EP | dsPIC33EP | dsPIC33F (legacy) |
Key Differentiators
- Motor-control optimized peripheral set (vs DSPIC33EP32GP504T-I/PT)
- Extended temperature / AEC-Q100 option in same footprint (vs DSPIC33EP32MC204T-E/PT)
- Modern EP generation performance (vs DSPIC33FJ32MC204-I/PT)
Design Notes
Place 0.1 uF ceramic decoupling capacitors at every VDD/VSS pin pair as close to the package as possible; the 44-TQFP (PT) has power pins distributed on multiple sides to support fast PWM edge switching. Use a solid ground plane on layer 2 and connect VSS pins directly to it with multiple vias. Keep the analog supply/ground domain separated from the PWM switching domain and reunite them at a single star point to protect ADC accuracy.
High-speed PWM outputs driving MOSFET gate drivers create fast edge rates that can couple into the analog inputs sharing the same connector region. Route analog sensor traces away from PWM lines, and use the ADC sampling triggered at PWM ramp midpoint (special event trigger) so that sampling never coincides with switching transitions. Series terminations (22-33 ohm) on PWM outputs to long traces reduce ringing and EMI.
The I suffix limits operation to -40C to +85C; using this part in an enclosure that exceeds +85C ambient (motor housings, sealed power supplies) will violate the datasheet rating - select the E-grade DSPIC33EP32MC204T-E/PT instead. Also, 4 KB SRAM is small for full CANopen stacks plus FOC state: budget stack and buffer sizes in the linker map early, and migrate to DSPIC33EP256MC family members if RAM analysis fails.
The device operates from a nominal 3.3 V supply. Estimated: core and peripheral current at 60 MHz is in the tens of milliamps class per Microchip family data, so a low-noise 3.3 V LDO or buck rated at 150 mA or more per DSC provides adequate margin. Sequence power so that VDD ramps monotonically; add bulk 10 uF capacitance near the supply entry to handle PWM-driven load transients from the attached gate driver stage.
Compliance Information
RoHS compliant per Microchip current production status for TQFP (PT) package. This I-grade commercial part is not AEC-Q100 qualified; the E-grade DSPIC33EP32MC204T-E/PT is the AEC-Q100 qualified variant.
