DSPIC33EP512MC504-I/PT - 16-bit 70 MIPS DSC, 512KB Flash | Microchip
MPN: DSPIC33EP512MC504-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.59 | $7.59 |
| 10 | $7.05 | $70.50 |
| 100 | $6.44 | $644.00 |
| 500 | $5.92 | $2,960.00 |
| 1,000 | $5.44 | $5,440.00 |
DSPIC33EP512MC504-I/PT Overview
A digital signal controller combines the computational power of a DSP engine with the control peripherals and ease of use of a microcontroller. Within the power management hierarchy of embedded systems, DSCs sit between general-purpose MCUs and dedicated DSPs, offering single-cycle MAC instructions and DSP-style addressing while retaining MCU-class peripherals, interrupts and development tooling. The dsPIC33EP family is Microchip's high-performance 16-bit DSC generation built around an enhanced dsPIC33E core.
Key features include a high-speed PWM module (MCPWM) with complementary outputs and dead-time control, a quadrature encoder interface (QEI) for motor position feedback, 4 DMA channels for data movement without CPU intervention, and 5 timers. Communication coverage includes ECAN (CAN 2.0B), I2C, SPI and UART. With 35 general-purpose I/O pins, the 44-pin device balances pin count against peripheral density for compact motor control boards.
Architecturally, the dsPIC33EP core executes most instructions in a single cycle at up to 70 MIPS, with hardware divide, 17-bit x 17-bit single-cycle MAC and dual operand fetch. Flash is organized to support in-circuit self-programming, and ICSP/ICD programming uses paired PGECx/PGEDx pins. The MCU core is designed for operation with an internal PLL from an external primary oscillator.
Typical applications include brushless DC and permanent-magnet synchronous motor control, digital power supplies (PFC, LLC), sensorless FOC drives, and industrial automation nodes needing CAN connectivity.
Design consideration: connect all VDD/VSS pin pairs and use the same PGECx/PGEDx pair for both ICSPCLK and ICSPDAT during programming; mismatched pairs are the most common bring-up failure.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with pricing referenced as of 2026-09-25.
Drop-in alternatives for DSPIC33EP512MC504-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 DSPIC33EP512MC504-I/PT (same form factor and footprint) — differing in Package, Operating Temperature, Core Architecture, Program Memory Size, SRAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP256MC504-I/PT
✅ Drop-In✓ In Stock
$4.6 / Unit
View Datasheet →DSPIC33EP512MC504-E/PT
✅ Drop-In✓ In Stock
$9.6 / Unit
View Datasheet →DSPIC33EP128MC504-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MC504-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32MC504-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512MC504-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E (16-bit DSC) |
| Maximum Clock Frequency | 60 MHz |
| Performance | 70 MIPS |
| Program Memory Size | 512 KB Flash |
| Data RAM Size | 48 KB |
| DMA Channels | 4 |
| Timers | 5 |
| Communication Interfaces | ECAN, I2C, SPI, UART |
| Motor Control Peripherals | MCPWM (high-speed PWM), QEI |
| Number of I/Os | 35 |
| Operating Supply Voltage | 1.8 V to 3.6 V (nominal 3.3 V) |
| Operating Temperature Range | -40C to +85C |
| Package | 44-lead TQFP, 10x10 mm |
| Mounting Type | Surface Mount |
| Programming / Debug | ICSP/ICD via paired PGECx/PGEDx pins |
| RoHS Status | Compliant |
DSPIC33EP512MC504-I/PT 44-lead tqfp, 10x10 mm Pin Configuration Guide
Pin configuration for DSPIC33EP512MC504-I/PT (44-lead tqfp, 10x10 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 DSPIC33EP512MC504-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP512MC504-I/PT is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digital Power Supplies (PFC / LLC), Industrial Automation and CAN Networking Nodes, Embedded Sensors and Signal Processing Nodes, Automotive-Adjacent Motion Systems (Non-AEC), Renewable Energy Converters (Solar / Wind MPPT).
Brushless DC / PMSM Motor Control
The DSPIC33EP512MC504-I/PT is purpose-built for precision motor control: its MCPWM module generates complementary PWM outputs with hardware dead-time insertion, and the QEI interfaces directly with incremental encoders for rotor position feedback. The 70 MIPS core executes single-cycle MAC instructions, supporting field-oriented control (FOC) current loops at 10-20 kHz and outer velocity loops without CPU saturation. The 512 KB Flash accommodates full FOC libraries, sensorless observer algorithms and communication stacks simultaneously. In a typical three-phase inverter, the DSC reads phase currents via its ADC, computes Clarke/Park transforms, and updates PWM duty cycles every control period, delivering servo-grade performance in a single 44-pin TQFP device.
Recommended
Digital Power Supplies (PFC / LLC)
Digital power conversion benefits from the DSPIC33EP512MC504-I/PT's high-speed PWM resolution and DSP engine. The MCPWM module supports phase-shifted topologies such as LLC half-bridge and full-bridge phase-shifted converters, while the 70 MIPS core closes voltage and current loops digitally at switching frequencies well above the control bandwidth. The 512 KB Flash holds soft-start, burst-mode, and protection state machines alongside the compensator code, and the 4 DMA channels stream ADC results into RAM without CPU intervention, minimizing loop latency. Compared with analog controllers, this DSC enables adaptive compensation, digital telemetry over UART/CAN, and firmware-updatable power supply behavior in telecom rectifiers and server power supplies.
Recommended
Industrial Automation and CAN Networking Nodes
With an on-chip ECAN module implementing CAN 2.0B, the DSPIC33EP512MC504-I/PT integrates directly into industrial fieldbus systems such as CANopen and DeviceNet-style networks. The 70 MIPS core runs protocol stacks while servicing sensor acquisition and actuator control, and 35 I/O pins interface switches, relays and encoders without external glue logic. The 512 KB Flash provides room for OTA-style field updates and device profile implementations, while the 5 timers support task scheduling and measurement functions. Factory automation nodes, motor-driven conveyors and distributed I/O modules all benefit from combining CAN connectivity and motor-control peripherals in one -40C to +85C rated 44-pin TQFP device.
Embedded Sensors and Signal Processing Nodes
The DSP engine of the DSPIC33EP512MC504-I/PT makes it effective for local signal processing in sensor nodes: the single-cycle 17-bit x 17-bit MAC accelerates FIR/IIR filtering, FFT-based vibration analysis and RMS computation on ADC streams. The 4 DMA channels move conversion results to the 48 KB RAM continuously, enabling gap-free capture for spectral analysis, while SPI and I2C interfaces connect external precision ADCs or EEPROM. On-node processing reduces the bandwidth burden on upstream controllers; only processed features travel over ECAN or UART to a supervisory system. This suits condition-monitoring terminals, acoustic sensors and industrial weight/measurement instruments needing local DSP at low power.
Recommended
Automotive-Adjacent Motion Systems (Non-AEC)
Motion systems operating in harsh environments - agricultural actuators, material-handling drives, marine thrusters and auxiliary pumps - exploit the industrial temperature rating (-40C to +85C) of the DSPIC33EP512MC504-I/PT and its robust peripheral set. The MCPWM module drives three-phase bridges with dead-time control, QEI reads position sensors in dusty or wet conditions, and ECAN connects the drive to vehicle-style CAN networks. The 512 KB Flash supports adaptive control plus diagnostic logging of temperature, current and fault histories for predictive maintenance. Note that this -I grade part is not AEC-Q100 qualified; for formally automotive-qualified designs, select Microchip's automotive-grade dsPIC33EP variants instead.
Recommended
Renewable Energy Converters (Solar / Wind MPPT)
Maximum power point tracking converters demand fast control loops and flexible PWM - both strengths of the DSPIC33EP512MC504-I/PT. Its MCPWM module generates the switching patterns for buck/boost and inverter stages with programmable dead time, while the 70 MIPS DSP core executes MPPT algorithms (perturb-and-observe or incremental conductance) plus grid-side current control. The 512 KB Flash supports anti-islanding, grid codes and data logging simultaneously, and ECAN/UART provide inverter monitoring links. DMA-driven ADC sampling synchronizes with PWM periods for clean current measurements. From micro-inverters to small wind charge controllers, this single-chip solution replaces separate MCU plus DSP combinations.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512MC504-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP256MC504-I/PT | DSPIC33EP512MC504-E/PT | DSPIC33EP128MC504-I/PT | DSPIC33EP64MC504-I/PT |
|---|---|---|---|---|---|
| Package | 44-lead TQFP (10x10 mm) | 44-lead TQFP (10x10 mm) - same | 44-lead TQFP (10x10 mm) - same | 44-lead TQFP (10x10 mm) - same | 44-lead TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz |
| Flash Program Memory | 512 KB | 256 KB | 512 KB | 128 KB | 64 KB |
| Motor Control Peripherals | MCPWM + QEI | MCPWM + QEI | MCPWM + QEI | MCPWM + QEI | MCPWM + QEI |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C |
| Communication Interfaces | ECAN, I2C, SPI, UART | ECAN, I2C, SPI, UART | ECAN, I2C, SPI, UART | ECAN, I2C, SPI, UART | ECAN, I2C, SPI, UART |
Key Differentiators
- Maximum Flash in the 44-pin TQFP MC504 family (vs DSPIC33EP256MC504-I/PT)
- Extended temperature option available on the same die (vs DSPIC33EP512MC504-E/PT)
- Integrated motor control subsystem (MCPWM + QEI + DSP engine) (vs DSPIC33EP64MC504-I/PT)
Design Notes
Connect every VDD/VSS pair on the 44-pin TQFP - the dsPIC33EP family requires all supply pins to be tied for proper operation, not just one pair. Place a 100 nF ceramic decoupling capacitor at each VDD/VSS pair as close to the pins as possible, plus a bulk 4.7-10 uF capacitor near the device. Keep the decoupling loop inductance minimal by routing power and ground planes directly under the IC.
ICSP programming requires paired pins: the dsPIC33EP512MC504 has multiple PGECx/PGEDx pairs, and ICSPCLK and ICSPDAT must come from the SAME pair (e.g., PGEC2 with PGED2). Per Microchip programming documentation via NSDSP, mismatched pairs are the most common programming failure. Also reserve an unpopulated programming header footprint (ICSP: MCLR, VDD, GND, PGECx, PGEDx) in production layouts.
For motor control, route MCPWM outputs to gate drivers with series resistors to control ringing, and keep ADC sense lines (current shunt amplifiers) away from PWM switching edges. Synchronize ADC sampling to the PWM period using the MCPWM-triggered conversion feature to sample currents at the center of the PWM ramp, which minimizes switching noise in FOC current measurements.
The device operates from 1.8 V to 3.6 V with a nominal 3.3 V supply. Estimated: at 60 MHz/70 MIPS with all peripherals active, core current is typically in the tens of mA range - verify the exact figure in the manufacturer datasheet electrical characteristics section for your power budget, and enable idle/doze low-power modes in firmware when control loops are idle to reduce average consumption.
Compliance Information
RoHS compliant per standard Microchip -I grade commercial offering. Industrial temperature grade (-40C to +85C); not an AEC-Q100 automotive-qualified part.
