DSPIC33EP512MC504T-I/ML - 16-bit 70 MIPS DSC, 512KB Flash | Microchip
MPN: DSPIC33EP512MC504T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.2 | $62.00 |
| 100 | $5.55 | $555.00 |
| 500 | $5.05 | $2,525.00 |
| 1,000 | $4.65 | $4,650.00 |
DSPIC33EP512MC504T-I/ML Overview
A digital signal controller combines the computational throughput of a digital signal processor with the peripheral integration and ease of use of a microcontroller, sitting between an MCU and a DSP in the embedded hierarchy. Within power management and control systems, DSCs are the preferred platform for closed-loop control loops that demand deterministic math execution, fast interrupt latency, and specialized peripherals such as motor-control PWM and quadrature encoders.
Key features include the 70 MIPS 16-bit pipelined core with integrated DSP multiply-accumulate instructions, 512 KB of self-programmable FLASH that allows field firmware updates, and 48 KB of data RAM sized for buffering and control algorithms. Integrated peripherals span CAN, I2C, SPI, UART/USART and IrDA serial interfaces, 35 programmable I/O pins, 12 timers/counters, quadrature encoder interface (QEI), motor control PWM (MCPWM), on-chip op amps and comparators, making the part a single-chip solution for digitally controlled power and motion systems.
Architecturally, the dsPIC33E core pairs a 16-bit MCU instruction set with DSP engine extensions, enabling deterministic single-cycle MAC operations critical to field-oriented motor control and digital power conversion. The operating supply range of 3 V to 3.6 V suits standard 3.3 V single-supply boards, and the industrial temperature grade (-40 C to +85 C) covers most commercial and industrial environments.
Typical applications include precision motor control (BLDC, PMSM, stepper) for industrial drives, digital power supplies and solar inverters, and embedded control nodes in HVAC, lighting, and factory automation. The CAN interface makes it a strong fit for automotive-adjacent and industrial networking nodes.
Design consideration: the QFN-44 exposed-pad package requires a solid ground connection via the thermal pad to the PCB ground plane for both heat dissipation and signal integrity; budget 3.3 V rail decoupling of 0.1 uF per supply pin group.
This page synthesizes distributor pricing, verified drop-in alternatives, practical design notes, and application guidance not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP512MC504T-I/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 DSPIC33EP512MC504T-I/ML (same form factor and footprint) — differing in Package, Core Architecture, Motor Control Peripherals, Operating Temperature, Packaging.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP512MC504T-E/ML
✅ Drop-In✓ In Stock
$4.95 / Unit
View Datasheet →DSPIC33EP256MC504-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MC504-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512MC504T-I/ML Maximum Ratings & Electrical Characteristics
| Core Processor | dsPIC33E (16-bit DSC core) |
| Core Size | 16-bit |
| Speed (MIPS) | 70 MIPS |
| Maximum Clock Frequency | 60 MHz |
| Program Memory Size | 512 KB (170K x 24) FLASH |
| Data RAM Size | 48 KB |
| Operating Supply Voltage | 3 V to 3.6 V |
| Number of Cores | 1 |
| Number of I/O | 35 |
| Timers/Counters | 12 |
| Connectivity | I2C, SPI, CAN, UART/USART, IrDA |
| Motor Control Peripherals | QEI, MCPWM, op amps, comparators |
| Operating Temperature Range | -40 C to +85 C |
| Package | 44-QFN (8x8 mm) Exposed Pad |
| Mounting Style | SMD/SMT |
| RoHS Status | Compliant |
DSPIC33EP512MC504T-I/ML 44-qfn (8x8 mm) exposed pad Pin Configuration Guide
Pin configuration for DSPIC33EP512MC504T-I/ML (44-qfn (8x8 mm) exposed pad 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 DSPIC33EP512MC504T-I/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP512MC504T-I/ML is suitable for 6 applications: Precision BLDC/PMSM Motor Control, Digital Power Supplies and Solar Inverters, Industrial Automation and PLC Nodes, HVAC and Compressor Control, Digital Lighting and Dimming Systems, Embedded Signal Acquisition and Sensing.
Precision BLDC/PMSM Motor Control
The DSPIC33EP512MC504T-I/ML is purpose-built for field-oriented control of brushless DC and permanent-magnet synchronous motors. Its 70 MIPS dsPIC33E core executes single-cycle MAC operations, sustaining 10-20 kHz current loops plus a 1-2 kHz speed loop with deterministic latency, while the dedicated MCPWM modules generate complementary PWM pairs with hardware dead-time insertion. The integrated QEI decodes encoder feedback without CPU overhead, and on-chip op amps and comparators condition shunt-current sensing directly. Placed as the single controller between the current-sense resistors and the three-phase gate driver, it eliminates a separate signal-conditioning stage; the main trade-off is 3.3 V-only I/O requiring level translation on 5 V encoder interfaces.
Recommended
Digital Power Supplies and Solar Inverters
In digitally controlled power conversion - LLC resonant converters, PFC stages, and solar micro-inverters - the DSPIC33EP512MC504T-I/ML provides the deterministic control core its 70 MIPS DSP engine needs to run peak-current-mode or predictive control loops at 50-200 kHz switching frequencies with 10-bit-class loop update rates. The MCPWM outputs support phase-shifted and complementary topologies with cycle-by-cycle current limiting via the high-speed comparators, and the 12 timers support precise interleaving of multiple phases. The 512 KB FLASH accommodates extensive compensation tables, protection state machines, and a bootloader for remote firmware updates; 48 KB RAM buffers telemetry. Designers should budget careful layout to keep PWM return currents away from the analog front end.
Recommended
Industrial Automation and PLC Nodes
For factory automation nodes, the DSPIC33EP512MC504T-I/ML combines CAN, UART/USART, SPI, and I2C connectivity with 35 I/O and 12 timers, allowing a single controller to bridge a CAN fieldbus to local sensors and actuators. The 512 KB FLASH holds the communication stack, protocol state machines, and diagnostics, while the industrial -40 C to +85 C rating covers cabinet-mounted environments. The DSP engine offloads filtering of noisy industrial analog signals (vibration, current) before reporting. Placed as a distributed I/O controller or smart actuator brain, it reduces BOM count versus MCU-plus-DSP two-chip solutions; the design consideration is that the CAN transceiver and galvanic isolation must be added externally since the device integrates the CAN controller only.
Recommended
HVAC and Compressor Control
Variable-speed HVAC compressors and blower motors benefit directly from the DSPIC33EP512MC504T-I/ML's MCPWM and QEI peripherals paired with its 70 MIPS control throughput. Sensorless FOC or trapezoidal algorithms run comfortably in the 48 KB RAM with 512 KB FLASH leaving room for multiple firmware profiles and OTA-update bootloaders - a practical requirement in deployed HVAC fleets. The -40 C to +85 C industrial rating tolerates unconditioned indoor and rooftop environments, and RoHS compliance meets global appliance regulations. The controller drives the inverter gate-driver stage directly from its PWM outputs; designers should implement the on-chip comparators for hardware over-current trips to protect the compressor stage independently of software latency.
Recommended
Digital Lighting and Dimming Systems
In high-power LED drivers and intelligent lighting, the DSPIC33EP512MC504T-I/ML generates dimming PWM and burst-mode control with the precision timers and MCPWM modules, while its 70 MIPS DSP engine runs power-factor-correction and ripple-compensation algorithms that keep flicker within spec. The CAN or UART interfaces support DALI-adjacent and building-automation networking, and the 512 KB FLASH supports field-updatable color/dimming profiles. Running from a 3.3 V rail derived from the mains supply, it sits between the rectified power stage and the LED driver ICs. Because it is industrial-rated from -40 C to +85 C, it also serves outdoor luminaires; note the exposed-pad QFN needs solid PCB grounding for thermal and EMI performance near switching stages.
Recommended
Embedded Signal Acquisition and Sensing
The DSPIC33EP512MC504T-I/ML serves as a smart acquisition front end where sensor signals need on-board DSP - vibration monitors, current-quality analyzers, and ultrasonic systems. The integrated op amps buffer sensor outputs, the ADC and 12 timers support precisely-timed sampling, and the 70 MIPS DSP engine applies FIR/IIR filtering and FFT analysis locally, transmitting only processed results over SPI, UART, or CAN to a host. The 48 KB RAM holds double-buffered sample windows while 512 KB FLASH stores calibration tables and multiple measurement profiles. As a distributed sensor node it reduces host bandwidth and latency; the key constraint is the 3-3.6 V analog supply domain, so bipolar or 5 V sensor outputs need external signal conditioning before the pins.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512MC504T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512MC504T-E/ML | DSPIC33EP256MC504-I/ML | DSPIC33EP128MC504-I/ML |
|---|---|---|---|---|
| Package | 44-QFN (8x8) Exposed Pad | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (FLASH) | 512 KB (170K x 24) | 512 KB (170K x 24) | 256 KB | 128 KB |
| Data RAM | 48 KB | 48 KB | 48 KB | 48 KB |
| Performance | 70 MIPS, 16-bit | 70 MIPS, 16-bit | 70 MIPS, 16-bit | 70 MIPS, 16-bit |
| Operating Temperature | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| Motor Control Peripherals | QEI, MCPWM, op amps, comparators | QEI, MCPWM, op amps, comparators | QEI, MCPWM, op amps, comparators | QEI, MCPWM, op amps, comparators |
Key Differentiators
- Full 512 KB FLASH in a compact 44-pin footprint (vs DSPIC33EP256MC504-I/ML)
- Industrial temperature at lower cost than extended grade (vs DSPIC33EP512MC504T-E/ML)
- Integrated analog signal chain reduces BOM (vs DSPIC33EP128MC504-I/ML)
Design Notes
The 44-QFN exposed-pad package requires the center thermal pad to be soldered to a grounded copper pour with an array of thermal vias (e.g., 5x5 via grid, 0.3 mm vias filled or tented). This pad is the primary ground return for the device - omitting it or using insufficient solder coverage causes both thermal and signal-integrity problems. Use a non-solder-mask-defined (NSMD) pad design per Microchip QFN application notes and verify paste stencil segmentation (typically 60-70% coverage) to prevent voiding under the pad.
Supply the device from a clean 3.3 V rail within the 3 V to 3.6 V window. Place 0.1 uF ceramic decoupling capacitors at each VDD/VDDCORE pin pair within 2 mm of the pins, plus one bulk 10 uF capacitor near the device. The dsPIC33E core requires the internal regulator's capacitor (typically ~10 uF on VDDCORE, value per datasheet) to be present or the device will not start - a frequent bring-up failure. Verify brown-out configuration is enabled so the DSC does not execute code during supply ramps.
Many pins on this device are multiplexed and remappable via Peripheral Pin Select (PPS); assigning conflicting peripherals or forgetting to lock PPS registers (writing the required unlock sequence) is the most common firmware error. Also confirm that pins used for analog functions have their corresponding digital buffers disabled (ANSEL bits), otherwise the digital input stage draws excess current. Finally, the 'T' suffix means tape-and-reel; small prototype quantities usually ship as cut tape from distributors - confirm moisture barrier bag and bake requirements per the MSL rating before reflow.
Compliance Information
RoHS compliant per datasheets.com listing for this part. Reach, halogen-free, and conflict-minerals status not stated in the provided data.
