DSPIC33EP64MC503-E/TL - 16-bit DSC 60 MIPS 64KB Flash | Microchip
MPN: DSPIC33EP64MC503-E/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.62 | $5.62 |
| 10 | $5.06 | $50.60 |
| 100 | $4.44 | $444.00 |
| 500 | $3.98 | $1,990.00 |
| 1,000 | $3.55 | $3,550.00 |
DSPIC33EP64MC503-E/TL Overview
A digital signal controller combines the computational power of a DSP with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy, a DSC sits above general-purpose MCUs for control-loop tasks: it executes fast math for FOC (field-oriented control) while simultaneously driving dedicated motor-control PWM hardware, making dsPIC33E devices a de facto standard for embedded motor control.
Key features include an on-chip motor-control PWM (MCPWM) module, quadrature encoder interface (QEI), one CAN 2.0B channel, I2C, SPI and UART serial ports, three integrated op amps and four comparators. These analog blocks offload external components, allowing current-sense amplification and overcurrent comparison entirely on-chip - a significant BOM saving in 3-phase inverter designs.
Architecturally, the dsPIC33E core is a modified Harvard, 16-bit pipelined engine with DSP multiply-accumulate (MAC) instructions, 40-bit accumulators and a single-cycle 16x16 multiplier, enabling execution of control loops and transform-based algorithms at deterministic latency. The device operates from a 3.3V supply and can run without the PLL at its internal FRC, simplifying low-cost systems.
Typical applications include brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) drives, AC induction motor control, digital power supplies (PFC, LLC), and automotive auxiliary motor modules such as pumps and actuators, where AEC-Q100 qualification and 125C operation are mandatory.
Design consideration: connect all VDD/VSS pairs and place a 0.1uF decoupling capacitor at each supply pin; note that ICSP programming requires using PGECx/PGEDx pin pairs as matched sets. The exposed pad must be soldered to a grounded copper pour for thermal performance at 125C ambient.
This page synthesizes distributor pricing, drop-in alternatives, cross-references and practical design notes not found in the manufacturer datasheet, with data verified as of 2026-09-25.
Drop-in alternatives for DSPIC33EP64MC503-E/TL — 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 DSPIC33EP64MC503-E/TL (same form factor and footprint) — differing in CAN, Operating Temperature, Package, Core, RAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP64MC503-E/M5
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP64MC503-I/TL
✅ Drop-In✓ In Stock
$2.8 / Unit
View Datasheet →DSPIC33EP64GP503-E/TL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.48 / Unit
View Datasheet →DSPIC33EP64GP503-I/TL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.51 / Unit
View Datasheet →DSPIC33EP64MC503-E/TL Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit DSC core |
| CPU Speed | 60 MIPS |
| Program Memory | 64KB (22K x 24) Flash |
| RAM | 8KB |
| Supply Voltage | 3.3 V |
| Operating Temperature | -40C to +125C |
| Package | 36-VTLA (5x5 mm) QFN, exposed pad |
| Qualification | AEC-Q100, Automotive |
| Motor Control PWM | Yes (MCPWM) |
| Quadrature Encoder Interface | Yes (QEI) |
| CAN | 1x CAN 2.0B |
| On-chip Op Amps | 3 |
| Comparators | 4 |
| Serial Interfaces | I2C, SPI, UART/USART |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Family | dsPIC 33EP Series |
DSPIC33EP64MC503-E/TL 36-vtla (5x5 mm) qfn, exposed pad Pin Configuration Guide
Pin configuration for DSPIC33EP64MC503-E/TL (36-vtla (5x5 mm) qfn, 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 DSPIC33EP64MC503-E/TL.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP64MC503-E/TL is suitable for 6 applications: BLDC / PMSM Motor Control, Automotive Auxiliary Motors (pumps, actuators), Digital Power Conversion (PFC, LLC), Industrial Automation and Robotics, HVAC and Appliance Motor Drives, Electric Power Tools and E-mobility.
BLDC / PMSM Motor Control
The DSPIC33EP64MC503-E/TL is purpose-built for brushless DC and permanent-magnet synchronous motor drives. Its dedicated motor-control PWM module generates complementary outputs with hardware dead-time insertion, while the quadrature encoder interface reads position feedback at full speed without CPU overhead. The three on-chip op amps amplify shunt current signals and the four comparators provide cycle-by-cycle overcurrent trip, replacing an external analog front end and cutting BOM cost. At 60 MIPS, the core executes field-oriented control loops in deterministic time; running from a 3.3V supply in the 5x5 mm VTLA package, it fits compact inverter boards, and the -40C to +125C AEC-Q100 rating covers harsh thermal environments.
Recommended
Automotive Auxiliary Motors (pumps, actuators)
Automotive subsystems such as coolant pumps, fuel pumps, HVAC blowers and throttle actuators require motor controllers qualified to AEC-Q100 and rated across -40C to +125C. The -E/TL variant of the DSPIC33EP64MC503 meets both requirements in a compact 36-pin VTLA QFN with exposed pad for thermal dissipation. The CAN 2.0B interface links the drive to vehicle networks, while the on-chip op amps and comparators handle phase-current sensing and fault protection locally, reducing component count in the high-vibration, high-temperature under-hood environment. Firmware for sensorless trapezoidal or FOC control runs comfortably within the 64KB Flash, and the same footprint supports I-grade parts for cost-reduced non-automotive builds.
Recommended
Digital Power Conversion (PFC, LLC)
Switched-mode power stages benefit from the DSPIC33EP64MC503-E/TL's fast control-loop capability and integrated analog. The 60 MIPS DSP core with single-cycle MAC executes average-current-mode PFC or LLC burst-mode algorithms at switching frequencies in the hundreds of kilohertz, while the high-speed PWM supports complementary outputs with programmable dead time for half-bridge topologies. On-chip comparators implement instantaneous overcurrent protection without software latency, and the three op amps condition feedback signals from shunt resistors, eliminating external amplifiers. The 3.3V device consumes board area of only 5x5 mm, and the extended temperature rating suits enclosed power supplies operating in hot ambient conditions such as telecom rectifiers and industrial chargers.
Recommended
Industrial Automation and Robotics
In factory automation, servo axes, conveyors and robot joints need coordinated multi-motor control with deterministic timing and fieldbus connectivity. The DSPIC33EP64MC503-E/TL provides 60 MIPS of DSP throughput for cascaded current/velocity/position loops, a quadrature encoder interface for incremental encoders, and CAN 2.0B for deterministic communication on industrial networks. Its motor-control PWM drives three-phase inverters directly, and integrated op amps plus four comparators implement a complete sensing and protection chain on-chip. The 64KB Flash accommodates complex motion profiles and diagnostic logging, while the industrial -40C to +125C (E-grade) range tolerates hot cabinets; the 5x5 mm VTLA package conserves PCB area on dense multi-axis control cards.
Recommended
HVAC and Appliance Motor Drives
Modern HVAC blowers, compressors and white-goods appliances are migrating from triac-controlled induction motors to efficient BLDC/PMSM drives. The DSPIC33EP64MC503-E/TL integrates everything a cost-sensitive appliance inverter needs: motor-control PWM with dead-time control, QEI or sensorless position estimation running on the 60 MIPS core, three op amps for single-shunt or three-shunt current sensing, and four comparators for hardware fault shutdown. The 64KB Flash stores efficiency-optimizing field-weakening and startup algorithms, while the 3.3V, 5x5 mm QFN keeps the controller section tiny. The extended -40C to +125C rating handles sealed outdoor condenser units, and the same footprint accepts cheaper I-grade devices for indoor consumer products.
Recommended
Electric Power Tools and E-mobility
Cordless power tools, e-bikes and light electric vehicles demand compact, high-current motor controllers with rugged protection. The DSPIC33EP64MC503-E/TL delivers sensorless BLDC and FOC firmware execution at 60 MIPS, hardware PWM with configurable dead time for the MOSFET bridge, and cycle-by-cycle overcurrent comparators that protect the drive during stall and start-up transients. Its CAN 2.0B port supports e-mobility communication between the motor controller, battery management and display nodes. The 3.3V operation, 64KB Flash and 8KB RAM are ample for torque-ramp profiles and fault diagnostics, while the -40C to +125C AEC-Q100 grade endures engine-bay and sealed-handle temperatures. The 5x5 mm VTLA package integrates into small ergonomic trigger-control PCBs.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP64MC503-E/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP64MC503-E/M5 | DSPIC33EP64MC503-I/TL | DSPIC33EP64GP503-E/TL |
|---|---|---|---|---|
| Package | 36-VTLA (5x5 mm) QFN, exposed pad | 36-VTLA (5x5 mm) - same | 36-VTLA (5x5 mm) - same | 36-VTLA (5x5 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS |
| Flash Memory | 64KB (22K x 24) | 64KB (22K x 24) | 64KB (22K x 24) | 64KB (22K x 24) |
| SRAM | 8KB | 8KB | 8KB | 8KB |
| Motor-Control PWM / QEI / Op Amps | Yes / Yes / 3 | Yes / Yes / 3 | Yes / Yes / 3 | No (GP family - standard PWM, no op amps) |
| Temperature Range | -40C to +125C (E, automotive) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) |
| AEC-Q100 Qualification | Yes | Yes | No | Yes |
Key Differentiators
- Extended automotive temperature grade in the same footprint (vs DSPIC33EP64MC503-I/TL)
- Integrated motor-control analog reduces external BOM (vs DSPIC33EP64GP503-E/TL)
- Trade-off: 64KB Flash ceiling for complex algorithms (vs DSPIC33EP64GP503-E/TL)
Design Notes
Connect every VDD/VSS pin pair as specified in the datasheet - the 36-pin VTLA has multiple supply pairs and floating one can cause erratic operation or latch-up. Place a 0.1uF ceramic capacitor at each VDD pin as close as possible to the package, plus one bulk 4.7uF to 10uF capacitor per supply domain. The core runs from an internal 1.8V regulator; fit the recommended regulator output capacitor per the datasheet to avoid brownouts during PWM transients.
The exposed pad (EP) of the 36-VTLA package is the primary thermal path. Solder it to a grounded copper pour with an array of thermal vias, especially for AEC-Q100 designs at 125C ambient where thermal margin is limited. Estimated: junction rise equals (PD x theta_JA); consult the datasheet theta_JA value with the actual board stackup before finalizing the design - do not assume the EP can be left unconnected.
The device offers multiple PGECx/PGEDx pairs for ICSP programming/debugging. You must use a matched pair - for example, PGEC2 for ICSPCLK with PGED2 for ICSPDAT - and route the chosen pair to the programming header. Mixing pairs from different sets prevents programming. Also configure unused op-amp and comparator pins as outputs or with defined pull states to avoid floating-input oscillation near motor-drive switching noise.
Keep the PWM output traces to the gate drivers short and, where possible, route them away from the op-amp current-sense inputs to minimize capacitive coupling of switching edges into the analog front end. Use a solid ground plane referenced by the exposed pad and the analog ground returns; separate the power ground of the inverter stage from the controller ground with a single-point connection at the shunt resistor.
Compliance Information
Automotive-qualified, AEC-Q100 per Hotenda and Microchip USA listings. RoHS and lead-free status per standard Microchip E-grade packaging; REACH and conflict-minerals statements not present in provided data.
