DSPIC33EP64MC504-I/PT - 16-bit 70 MIPS DSC 64KB Flash | Microchip
MPN: DSPIC33EP64MC504-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.6 | $5.60 |
| 10 | $5.05 | $50.50 |
| 100 | $4.42 | $442.00 |
| 500 | $3.95 | $1,975.00 |
| 1,000 | $3.55 | $3,550.00 |
DSPIC33EP64MC504-I/PT Overview
A digital signal controller combines the computational strengths of a microcontroller (MCU) with the DSP engine of a digital signal processor. Within the power-management hierarchy of embedded systems, a DSC such as the dsPIC33EP64MC504 sits between general-purpose MCUs and dedicated DSPs, offering deterministic control-loop execution plus hardware multiply-accumulate (MAC) and divide instructions that make it especially effective for precision motor control and digital power conversion.
Key features include the 70 MIPS dsPIC33EP core, high-speed motor control PWM (MCPWM) peripherals with complementary and independent outputs, quadrature encoder interface (QEI) inputs for feedback from rotary encoders, and advanced analog integration. The industrial temperature grade (-40C to +85C, denoted by the -I suffix) suits harsh factory environments, while the 3.0V to 3.6V supply range matches standard 3.3V rails.
Architecturally, the device uses a modified Harvard, pipelined 16-bit core with DSP instruction support and multiple interrupt priorities. On-chip peripherals such as timers, UART/SPI/I2C communication modules, and PWM units offload work from the CPU, letting a single controller close current, speed, and position loops simultaneously in field-oriented-control (FOC) motor drives.
Typical applications include brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) drives, digital switch-mode power supplies, industrial automation, and embedded control systems requiring deterministic real-time response. The QEI and MCPWM combination makes it a natural fit for servo and positioning systems.
Design consideration: connect all VDD/VSS pairs and use a PCB layout with short, wide ground returns to the PWM driver pins; use PGECx/PGEDx pin pairs consistently for ICSP programming and debugging, as the pair selected must match in the development tool configuration.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP64MC504-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 DSPIC33EP64MC504-I/PT (same form factor and footprint) — differing in Package, Operating Temperature, Core, Packaging, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP64MC504-E/PT
✅ Drop-In✓ In Stock
$3.42 / Unit
View Datasheet →DSPIC33EP64MC504-H/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP64MC504-E/PTVAO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP64MC503-E/TL
✅ Drop-In✓ In Stock
$3.55 / Unit
View Datasheet →DSPIC33EP64MC204T-E/TL
✅ Drop-In✓ In Stock
$3.55 / Unit
View Datasheet →DSPIC33EP64GP504T-E/TL
✅ Drop-In✓ In Stock
$3.5 / Unit
View Datasheet →DSPIC33EP64MC504-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33EP 16-bit DSC core |
| Program Memory Size | 64 KB (22K x 24) Flash |
| RAM Size | 8 KB |
| Maximum CPU Speed | 70 MIPS |
| Data Bus Width | 16 bit |
| Supply Voltage Range | 3 V to 3.6 V |
| Operating Temperature | -40C to +85C (industrial, -I grade) |
| Package | 44-TQFP (10x10 mm) PT |
| Mounting Type | Surface Mount |
| I/O Ports | 51 I/O (device family max; package-dependent) |
| Motor Control PWM | High-speed MCPWM with QEI |
| Communication Interfaces | UART, SPI, I2C |
| Timers | Multiple 16-bit timers (family: up to 9 GP timers) |
| Programming Interface | ICSP via PGECx/PGEDx pin pairs |
| RoHS Status | Compliant |
| Lifecycle Status | Active |
DSPIC33EP64MC504-I/PT 44-tqfp (10x10 mm) pt Pin Configuration Guide
Pin configuration for DSPIC33EP64MC504-I/PT (44-tqfp (10x10 mm) pt 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 DSPIC33EP64MC504-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP64MC504-I/PT is suitable for 6 applications: BLDC Motor Control, PMSM Servo Drives, Digital Power Conversion, Industrial Automation, Embedded Motion and Positioning Systems, Robotics and Drones.
BLDC Motor Control
The DSPIC33EP64MC504-I/PT fits brushless DC motor drives because its 70 MIPS DSP core executes field-oriented control (FOC) loops with single-cycle MAC instructions, while the high-speed MCPWM module generates complementary PWM outputs with dead-time control for the three-phase inverter. In a typical FOC firmware structure, the current loop runs at PWM frequency using the DSC's fast ADC-triggered interrupts, and the QEI inputs accept encoder feedback for speed and position. Placing the DSC on a 3.3V rail with short gate-driver routing keeps switching noise out of the analog sensing path; the deterministic interrupt latency of the dsPIC33EP core ensures jitter-free PWM updates that generic MCUs struggle to match.
Recommended
PMSM Servo Drives
For permanent-magnet synchronous motor servo systems, the DSPIC33EP64MC504-I/PT provides the quadrature encoder interface (QEI) needed to read high-resolution incremental encoders, and its 70 MIPS core closes position, velocity, and current cascaded loops in software without external co-processors. The industrial -40C to +85C temperature grade suits factory-floor servo amplifiers that see elevated ambient temperatures inside drive cabinets. Designers typically use the MCPWM module in complementary mode with hardware dead time for the inverter stage, and the DSC's DSP divide instructions accelerate Park/Clarke transforms. Footprint constraints in compact servo drives favor the 10x10 mm 44-TQFP over larger 64/80-pin devices when I/O count permits.
Recommended
Digital Power Conversion
Switch-mode power supplies and digitally controlled DC-DC converters benefit from the DSPIC33EP64MC504-I/PT's fast control-loop capability: the 70 MIPS core executes PID or nonlinear compensators at switching frequencies in the tens of kilohertz to low hundreds of kilohertz, while PWM peripherals offer high-resolution duty-cycle updates for precise voltage regulation. The 3V to 3.6V supply range ties cleanly to an auxiliary bias rail, and multiple communication interfaces (UART, SPI, I2C) allow PMBus-style supervisory links. Because the same family includes SMPS-oriented siblings (dsPIC33EPxxGS50x), designers can migrate pin-compatibly if their power topology later needs dedicated SMPS peripherals, protecting firmware investment in the dsPIC33EP toolchain.
Recommended
Industrial Automation
In factory automation nodes, the DSPIC33EP64MC504-I/PT acts as a real-time controller combining sensor acquisition, actuator PWM drive, and communication with supervisory systems. Its industrial -40C to +85C rating tolerates unconditioned panel environments, and the 64 KB Flash accommodates protocol stacks alongside the control firmware. UART, SPI, and I2C interfaces connect to displays, sensors, and field-bus transceivers, while multiple timers support coordinated sequencing. The boundary-scan (BSDL) support on the device enables in-circuit test coverage on production boards. Development support through the MA330028 PIM and MPLAB X ecosystem shortens time-to-market for automation OEMs standardizing on the dsPIC33EP family across product lines.
Recommended
Embedded Motion and Positioning Systems
Stepper and positioning systems use the DSPIC33EP64MC504-I/PT's PWM outputs to generate microstepping waveforms and its QEI inputs for closed-loop position verification. The 70 MIPS core performs trajectory interpolation and acceleration profiling in real time, and 8 KB of RAM buffers motion sequences. The 44-TQFP package provides enough I/O for limit switches, encoder inputs, and driver-enable signals on one compact 10x10 mm footprint. Because the dsPIC33EP core includes hardware divide, coordinate transformations for multi-axis kinematics run efficiently without software emulation. For bench bring-up, the device programs via any matched PGECx/PGEDx ICSP pair, so programming headers can be minimal 5-pin footprints.
Recommended
Robotics and Drones
Mobile robots and UAV platforms use the DSPIC33EP64MC504-I/PT as a dedicated motor-control coprocessor beneath a host processor: the DSC closes each wheel or rotor speed loop using MCPWM plus encoder feedback at 70 MIPS, offloading hard real-time tasks from the main computer. The 3.3V supply integrates with common logic rails, and UART links report telemetry to the flight or navigation controller. Its DSP engine handles sensor fusion math (complementary filters) without floating-point hardware by fixed-point techniques. The compact 44-TQFP suits weight- and space-constrained designs, and the industrial temperature grade covers outdoor robot deployments where enclosures heat under load.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP64MC504-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP64MC504-E/PT | DSPIC33EP64MC504-H/PT | DSPIC33EP64MC503-E/TL | DSPIC33EP64GP504T-E/TL |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP - same footprint | 44-TQFP - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Speed | dsPIC33EP, up to 70 MIPS | dsPIC33EP, 70 MIPS | dsPIC33EP, lower speed grade | dsPIC33EP, 70 MIPS | dsPIC33EP, 70 MIPS |
| Flash Memory | 64 KB (22K x 24) | 64 KB | 64 KB | 64 KB | 64 KB |
| Motor Control PWM / QEI | Yes (MCPWM + QEI) | Yes (same die) | Yes (same die) | MC family - verify channel count | No MCPWM/QEI focus (GP variant) |
| 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 | 3 V to 3.6 V |
| Drop-in on Same PCB | - | Yes - identical die/pinout | Yes - identical footprint | Footprint yes - verify pin function map | Footprint yes - verify pin function map |
Key Differentiators
- Purpose-built motor control peripheral set (vs DSPIC33EP64GP504T-E/TL)
- Extended temperature option with identical footprint (vs DSPIC33EP64MC504-E/PT)
- 70 MIPS DSP-class throughput at 16-bit cost point (vs DSPIC33EP64MC504-H/PT)
Design Notes
Connect every VDD/VSS pin pair on the 44-TQFP and place a 100 nF ceramic decoupling capacitor directly at each VDD/VSS pair with a solid ground plane. In motor-drive layouts, keep the MCPWM output traces short and away from analog sensor inputs (current-shunt amplifier outputs) to prevent switching noise coupling into ADC readings that the FOC current loop depends on. Route the ICSP PGECx/PGEDx pair as a matched, short pair to a 5-pin header for field programming.
The DSPIC33EP64MC504-I/PT operates from 3V to 3.6V. In motor drives where a bulk 3.3V rail also feeds other logic, ensure the regulator can handle the DSC core current plus I/O driver current at 70 MIPS without dipping below the brown-out threshold during PWM load transients. A local ferrite bead plus bulk capacitance (10 uF) near the DSC reduces supply ripple from adjacent inverter stages. Verify the 3.3V rail sequencing if other rails power communication transceivers.
The device provides multiple PGECx/PGEDx pairs for ICSP programming and debugging: you must use clock and data from the same pair (for example PGEC2 with PGED2), and a mismatch between hardware header wiring and the debugger configuration causes silent programming failures. Also note that same-family MC503/MC204/GP504 parts share the TQFP-44 footprint but not identical peripheral multiplexing - always re-verify the pin-function table before dropping an alternative onto an existing PCB.
For encoder inputs on the QEI module, add series termination or RC filtering on long encoder cable runs to suppress motor-switching glitches, and enable the module's digital filtering options in firmware. Keep crystal/oscillator traces short with guard ground if using an external clock source for the PLL that generates the 70 MIPS operating frequency.
Compliance Information
Active Microchip product; RoHS-compliant lead-free packaging per distributor listings (DigiKey, LCSC). Request current REACH/halogen/conflict-minerals declarations from Microchip.
