DSPIC33EP256GP502-I/MM Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
Microchip DSPIC33EP256GP502-I/MM is a 16-bit dsPIC33E digital signal controller running at 60 MHz (70 MIPS) with 256 KB Flash and a hardware barrel shifter for real-time DSP tasks. It combines a 16-bit MCU with DSP engine capabilities in a compact 28-pin QFN package. Designed for motor control, power conversion, and sensor signal processing applications.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- DSPIC33EP256GP502-I/MM Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.3200(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 60 MHz core delivering 70 MIPS with a dedicated DSP engine for single-cycle multiply-accumulate operations
- Hardware barrel shifter enabling single-cycle bit-field manipulation critical for control law implementations
- 256 KB Flash with ECC support for code-intensive motor control and communication firmware
- 28-pin QFN-S package combining 28 I/O lines with a 0.65 mm pitch in a 6 mm x 6 mm footprint
Applications
The DSPIC33EP256GP502-I/MM is purpose-built for field-oriented motor control, digital power supply regulation, and industrial sensor conditioning where the 70 MIPS DSP core executes Clarke/Park transforms, PID loops, and FFT analysis within strict real-time deadlines. Its multiple internal buses enable simultaneous ADC sampling and PWM output updates without pipeline stalls, making it effective for three-phase inverter control and switched-mode power supply designs. The compact QFN package suits high-density power conversion boards and servo drive modules where thermal dissipation and board area are both constrained.
Specifications
| Manufacturer Package Code | QFN-S-28 |
| Factory Lead Time | 6Weeks |
| YTEOL | 14 |
| Barrel Shifter | YES |
| Bit Size | 16 |
| Boundary Scan | YES |
| Clock Frequency-Max | 60MHz |
| Format | FIXED POINT |
| Integrated Cache | NO |
| Internal Bus Architecture | MULTIPLE |
| JESD-30 Code | S-PQCC-N28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of DMA Channels | 4 |
| Number of External Interrupts | 3 |
| Number of Timers | 5 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC28,.24SQ,25 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (words) | 32768 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Supply Current-Max | 55mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | DIGITAL SIGNAL PROCESSOR, CONTROLLER |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | 3A991.a.2 |
| HTS Code | 8542.31.00.35 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the dsPIC33EP256GP502's hardware DSP engine accelerate motor control algorithms compared to a standard MCU?
The dsPIC33E DSP engine executes a 16-bit multiply-accumulate (MAC) in a single instruction cycle of 14.3 ns at 70 MIPS, whereas a standard 8-bit or 16-bit MCU without hardware MAC would require 3–10 cycles for the same operation. This allows a complete Clarke transform, Park transform, and two-axis PID update — roughly 200 MAC operations — to complete in under 3 µs, meeting the 5 µs control loop deadline required by a 100 kHz PWM switching frequency.
What memory capacity does the DSPIC33EP256GP502-I/MM offer, and does it support in-field firmware updates?
The device provides 256 KB of program Flash with ECC error correction and 28 KB of SRAM. Flash is partitioned to support a bootloader in the lower region and application firmware in the upper region, enabling in-application programming (IAP) where a UART or CAN bootloader can overwrite the 220 KB application space while the bootloader itself remains intact, allowing field firmware updates without a programmer.
For a motor drive PCB, how small is the DSPIC33EP256GP502-I/MM's QFN footprint and what thermal properties does it offer?
The QFN-S-28 package measures 6 mm × 6 mm with a 0.65 mm pin pitch and includes an exposed thermal pad on the bottom. This allows direct heat transfer to a ground plane or heatsink via PCB copper, reducing junction-to-board thermal resistance to approximately 35°C/W and enabling the device to operate reliably at the full 70 MIPS throughput in a densely populated motor drive board.
Which communication peripherals are available on DSPIC33EP256GP502-I/MM for industrial networking?
The device integrates two UART modules supporting baud rates up to 4 Mbps, two SPI modules at up to 15 Mbps, one I2C module at 400 kHz, and one CAN 2.0B controller with 8 transmit and 32 receive buffers. This peripheral set allows simultaneous Modbus RTU communication, SPI sensor reading, I2C EEPROM access, and CAN fieldbus participation within a single 28-pin device.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.5900 | $4.59 |
| 25+ | $4.3600 | $109.00 |
| 61+ | $4.1500 | $253.15 |
| 100+ | $3.8200 | $382.00 |
| 1000+ | $3.5000 | $3500.00 |
| 5000+ | $3.3200 | $16600.00 |
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“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”