DSPIC33EP64MC506-I/PT - 16-bit DSC 64KB Flash 60MHz TQFP-64 | Microchip
MPN: DSPIC33EP64MC506-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.78 | $57.80 |
| 100 | $5.15 | $515.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $4.11 | $4,110.00 |
DSPIC33EP64MC506-I/PT Overview
A digital signal controller combines the periphery of a microcontroller - Flash memory, SRAM, timers, UART/SPI/I2C serial ports, and ADC - with the multiply-accumulate (MAC) DSP engine of a digital signal processor. In the power-management hierarchy of embedded systems, DSCs sit between general-purpose MCUs and dedicated DSPs, making them the de facto standard for digital power conversion, motor control, and sensor-fusion applications that require both control flow and fast real-time math.
Key features include the high-speed motor control PWM (MCPWM) peripheral with complementary outputs, dead-time insertion and fault protection, a quadrature encoder interface (QEI) for servo and stepper feedback, and the advanced analog capabilities of the dsPIC33EP family. The controller operates from a 3.0 V to 3.6 V supply and integrates multiple 16-bit timers for time-base generation.
Architecturally, the dsPIC33E core pairs a 16-bit modified Harvard pipeline with a dedicated DSP multiply-accumulate unit, allowing single-cycle MAC operations on DSP instructions. In-Circuit Serial Programming (ICSP) via the MPLAB SNAP or PICKIT programmers supports in-system debugging and field reprogramming using only two device I/O pins and the reset line.
Typical applications include brushless DC and PMSM motor drives, digital power supplies (PFC, LLC), UPS systems, and industrial automation nodes where deterministic PWM plus encoder feedback is essential.
Design consideration: budget the 3.3 V rail decoupling carefully - each VDD/VSS pin pair needs local 0.1 uF ceramics, and VDDCORE requires its own bulk capacitance per the datasheet.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP64MC506-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 DSPIC33EP64MC506-I/PT (same form factor and footprint) — differing in Timers, Operating Temperature, Package, Core, Max CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128MC506-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP256MC506-I/PT
✅ Drop-In✓ In Stock
$4.65 / Unit
View Datasheet →DSPIC33EP64MC506-E/PT
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →DSPIC33EP64GS506-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP128MC506-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MC506-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC |
| Program Memory Size | 64 KB Flash |
| RAM Size | 8 KB SRAM |
| Core Clock Speed | 60 MHz |
| Operating Voltage | 3.0 V to 3.6 V |
| General Purpose I/O | 51 I/O |
| Package | 64-pin TQFP (PT), 10 x 10 mm |
| Operating Temperature | -40C to +85C (I grade) |
| Motor Control PWM | MCPWM with complementary outputs |
| Quadrature Encoder Interface | Yes (QEI) |
| Timers | Multiple 16-bit general purpose timers |
| Programming Interface | ICSP (2-wire programming plus MCLR) |
| Mounting Type | Surface Mount |
| Life Cycle Stage | Active |
DSPIC33EP64MC506-I/PT 64-pin tqfp (pt), 10 x 10 mm Pin Configuration Guide
Pin configuration for DSPIC33EP64MC506-I/PT (64-pin tqfp (pt), 10 x 10 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 DSPIC33EP64MC506-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP64MC506-I/PT is suitable for 6 applications: Brushless DC / PMSM Motor Drives, Digital Power Supplies (PFC / LLC), Uninterruptible Power Supplies (UPS), Industrial Automation and Motion Control, Solar Micro-Inverters and Renewable Energy Converters, Embedded Sensing and Instrumentation.
Brushless DC / PMSM Motor Drives
The DSPIC33EP64MC506-I/PT fits sensor-driven BLDC and PMSM drives because its MCPWM module generates complementary PWM pairs with programmable dead time and cycle-by-cycle current limiting via fault inputs, while the quadrature encoder interface decodes position feedback from incremental encoders without CPU loading. A typical three-phase inverter uses six PWM outputs driving a gate-driver stage, with the QEI providing commutation angle and speed data at up to the 60 MHz time-base resolution. The 16-bit DSP engine executes FOC (field-oriented control) loops including Clark/Park transforms and PI current controllers at 10-20 kHz bandwidth within the 64 KB program budget. Trade-off: at large code sizes for sensorless observers, the 128 KB or 256 KB variants of the same footprint become preferable.
Recommended
Digital Power Supplies (PFC / LLC)
In digitally controlled switch-mode power supplies, the DSPIC33EP64MC506-I/PT closes voltage and current loops in firmware, replacing analog compensation networks. The high-resolution PWM capability of the dsPIC33EP family allows fine duty-cycle and phase-shift adjustment for LLC half-bridge converters, while the fast 12-bit-class ADC (per family architecture) samples output voltage and inductor current each switching cycle. Control-law update rates of 100-500 kHz are practical given the 60 MHz core and single-cycle MAC instructions for PI and 2P2Z compensators. Designers should verify ADC sampling latency against switching frequency; the companion GS506 variant in the same 64-pin TQFP footprint offers a PWM peripheral purpose-built for power topologies if even finer pulse resolution is needed.
Recommended
Uninterruptible Power Supplies (UPS)
Online double-conversion UPS systems use the DSPIC33EP64MC506-I/PT to control the AC-DC boost rectifier and DC-AC inverter stages simultaneously. The MCPWM module's complementary outputs with dead-time insertion drive the inverter bridge safely, while multiple timers synchronize sampling of battery voltage, bus voltage, and output current. The DSP multiply-accumulate engine implements harmonic compensation and sinusoidal reference generation in real time, achieving low output THD. The industrial -40C to +85C grade suits installed equipment enclosures, and the E-grade variant extends margin for high-ambient battery cabinets. Firmware complexity for grid synchronization (PLL) and battery management is well within the 64 KB Flash, with the 128 KB same-footprint part available for headroom.
Recommended
Industrial Automation and Motion Control
Factory automation nodes use the DSPIC33EP64MC506-I/PT as a motion coordinator: the QEI tracks encoder position from servo axes, the MCPWM drives stepper or servo amplifiers, and the UART/SPI/I2C serial peripherals communicate over RS-485 or CAN-adjacent networks with the host PLC. With 51 GPIO, a single device can handle limit switches, relay outputs, and status LEDs in addition to the motion loop. The 60 MHz core executes trapezoidal and S-curve motion profiles deterministically, and the 16-bit timer array provides precisely scheduled task execution. Because the dsPIC33EP family shares a common toolchain (MPLAB X, XC16) and family reference manual across memory sizes, scaling firmware from prototype (64 KB) to production variants (128/256 KB) on the same PCB requires no layout change.
Recommended
Solar Micro-Inverters and Renewable Energy Converters
Grid-tied renewable converters benefit from the DSPIC33EP64MC506-I/PT's mix of high-speed PWM and DSP math. MPPT (maximum power point tracking) algorithms run as periodic perturb-and-observe or incremental-conductance tasks, with ADC channels sampling panel voltage/current at high rates; the resulting duty command updates the boost-converter PWM each cycle. The complementary PWM outputs with programmable dead time protect the synchronous rectification stage, and fault inputs provide hardware-level shutdown faster than any software interrupt response. The device's 3.0-3.6 V operation simplifies logic-level interfacing with supervisory circuitry. For designs requiring the PWM peripheral optimized specifically for power conversion rather than motor drive, the same-footprint GS506 variant is the recommended alternative.
Recommended
Embedded Sensing and Instrumentation
Precision portable instrumentation uses the DSPIC33EP64MC506-I/PT where signal-chain math plus UI and communications are combined. The DSP engine applies FIR/IIR filtering and FFT-based analysis to sampled sensor data, while general timers drive measurement gates and the serial peripherals stream results over USB-bridge or RS-232 links. The 51 I/O count supports keypads, displays, and relay multiplexers without external port expanders. At 3.3 V operation the device interfaces directly with most modern analog front-ends and 3.3 V logic. The industrial temperature grade covers benchtop and field-service environments; battery-powered designs should verify sleep and idle currents against the family datasheet because this EP-generation device prioritizes performance over ultra-low standby power.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP64MC506-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128MC506-I/PT | DSPIC33EP256MC506-I/PT | DSPIC33EP64MC506-E/PT | DSPIC33EP64GS506-I/PT |
|---|---|---|---|---|---|
| Package | 64-pin TQFP (PT), 10x10 mm | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 64 KB | 128 KB | 256 KB | 64 KB | 64 KB |
| Core Clock | 60 MHz | 60 MHz | 60 MHz | 60 MHz | 60 MHz |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C |
| Peripheral Focus | MCPWM + QEI (motor control) | MCPWM + QEI (motor control) | MCPWM + QEI (motor control) | MCPWM + QEI (motor control) | High-speed PWM (digital power) |
| GPIO Count | 51 | 51 | 51 | 51 | 51 |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
Key Differentiators
- Dedicated motor-control PWM with QEI encoder interface (vs DSPIC33EP64GS506-I/PT)
- In-place Flash upgrade path without PCB change (vs DSPIC33EP256MC506-I/PT)
- Extended temperature option on the same die (vs DSPIC33EP64MC506-E/PT)
Design Notes
Decouple every VDD/VSS pair on the 64-pin TQFP with a local 0.1 uF ceramic placed within 2-3 mm of the pin, plus one 4.7-10 uF bulk capacitor per supply rail. The dsPIC33EP core rail (VDDCORE) requires its own external capacitor per the family datasheet - omitting or undersizing it is a common cause of erratic core-clock behavior at 60 MHz. Keep the ICSP programming header (MCLR, PGD, PGC, VDD, VSS) on the PCB even in production so field firmware updates remain possible.
Route MCPWM outputs away from the QEI encoder inputs and analog ADC traces; the fast PWM edges couple capacitively into encoder signals and cause position jitter. Use ground guard traces around the encoder inputs and, if the motor drive is on the same board, place a dedicated ground island under the gate-driver stage. Keep the crystal or internal-oscillator bypass components short and symmetric per Microchip's oscillator layout guidance in the family reference manual.
Do not exceed the 3.6 V absolute supply limit - 5 V tolerance on I/O is not guaranteed on this family. Verify Flash endurance/write-erase cycle requirements if storing calibration data in program Flash; use emulation EEPROM sparingly on the 64 KB part since page-erase granularity consumes code space. When selecting alternates, note that GS-series parts share the footprint but re-map some pin functions, so firmware and schematic pin assignments must be revalidated even for same-package variants.
Compliance Information
Compliance status not stated in the provided web data; verify on the official Microchip product page or the family datasheet before procurement.
