DSPIC33EP256MU810T-I/PT - 60 MIPS DSC 256KB USB | Microchip
MPN: DSPIC33EP256MU810T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.2 | $62.00 |
| 100 | $5.6 | $560.00 |
| 500 | $5.15 | $2,575.00 |
| 1,000 | $4.8 | $4,800.00 |
DSPIC33EP256MU810T-I/PT Overview
A digital signal controller combines the compute architecture of a digital signal processor with the peripheral integration and ease of use of a microcontroller. Within the power-management and embedded-control hierarchy, the DSC sits above a general-purpose MCU in DSP throughput, making the dsPIC33 family a standard choice for precision motor control, digital power conversion, and sensing systems that require multiply-accumulate (MAC) performance on a 16-bit core.
Key features of this part include the 60 MHz/60 MIPS dsPIC33E core, 256KB of self-programmable Flash, 28KB of SRAM, an integrated USB interface, ECAN, I2C, SPI and UART/USART serial connectivity (including IrDA support per distributor listings), and high-speed PWM peripherals targeted at digital power and motor-drive topologies.
Technically, the dsPIC33EP core executes DSP instructions with single-cycle MAC and supports C compilation through Microchip MPLAB X IDE and the XC16 compiler. The MU sub-family is the USB-enabled branch of the 33EP line, and the datasheet family description also cites advanced analog integration and up to 512KB Flash and 52KB SRAM across the family roadmap.
Typical applications include brushless DC and PMSM motor control, digital SMPS and LED drivers, USB-connected industrial sensors and instruments, and automotive-adjacent control nodes (the E-temperature variant DSPIC33EP256MU810T-E/PT is AEC-Q100 qualified per Microchip USA).
A key design consideration: this is the I-grade (-40C to +85C) tape-and-reel variant in the 12x12 mm 100-TQFP; if your application requires 125C operation or automotive qualification, select the E/PT variant instead, which shares the same footprint.
This page synthesizes distributor pricing tiers, drop-in family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP256MU810T-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 DSPIC33EP256MU810T-I/PT (same form factor and footprint) — differing in Package, Supply Voltage, Core, Program Memory Size, Qualification.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP256MU810T-E/PT
✅ Drop-In✓ In Stock
$4.62 / Unit
View Datasheet →DSPIC33EP256MU810T-I/PF
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →DSPIC33EP256GM710T-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.4 / Unit
View Datasheet →DSPIC33EP256MU810T-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit DSC core |
| Max CPU Speed | 60 MIPS (60 MHz) |
| Program Memory | 256KB (85.5K x 24) FLASH |
| RAM | 28KB |
| Supply Voltage | 3 V to 3.6 V |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 100-TQFP (12x12 mm), PT suffix |
| Mounting Type | Surface Mount |
| USB | Yes (integrated USB) |
| Serial Interfaces | ECAN, I2C, SPI, UART/USART, IrDA |
| General Purpose Timers | 27 (per family datasheet description) |
| High-Speed PWM | Yes (per family datasheet description) |
| Advanced Analog | Yes (per family datasheet description) |
| Packaging | Tape and Reel (T suffix) |
| Lifecycle Stage | ACTIVE |
DSPIC33EP256MU810T-I/PT 100-tqfp (12x12 mm), pt suffix Pin Configuration Guide
Pin configuration for DSPIC33EP256MU810T-I/PT (100-tqfp (12x12 mm), pt suffix 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 DSPIC33EP256MU810T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP256MU810T-I/PT is suitable for 6 applications: BLDC/PMSM Motor Control, Digital Switch-Mode Power Supplies, USB-Connected Industrial Instruments, Automotive Control Nodes (E-grade), Sensor Acquisition and DSP Signal Conditioning, LED Lighting and Display Drivers.
BLDC/PMSM Motor Control
The DSPIC33EP256MU810T-I/PT fits precision motor control because its 60 MIPS dsPIC33E core executes field-oriented control (FOC) loops with single-cycle MAC operations, while high-speed PWM peripherals generate complementary, dead-time-controlled gate signals for three-phase inverters. Microchip explicitly positions the dsPIC33E family for high-performance, precision motor control systems. In a typical drive, the DSC reads current and position feedback through its analog inputs, runs the FOC current loop at 10-20 kHz, and communicates drive status over ECAN in networked automation cells. Because the whole control chain lives on one 3.3V chip, board area and BOM cost drop compared to DSP-plus-MCU two-chip solutions, and the USB interface enables field tuning of control parameters.
Recommended
Digital Switch-Mode Power Supplies
For digitally controlled SMPS, the DSPIC33EP256MU810T-I/PT provides the high-speed PWM resolution and 60 MIPS loop bandwidth required for voltage-mode or current-mode control at switching frequencies of several hundred kHz. The dsPIC33E family datasheet describes integrated high-speed PWM and advanced analog targeting digital power conversion, so the controller can close the feedback loop, manage soft-start, and implement protection (over-current, over-voltage) in firmware. The ECAN interface supports PMBus-like monitoring and power-system telemetry in telecom or server power shelves, while the 256KB Flash leaves room for multi-rail sequencing state machines. Compared to analog PWM controllers, the DSC adds adaptive tuning and diagnostics at comparable loop latency, at the cost of firmware development effort.
Recommended
USB-Connected Industrial Instruments
The MU sub-family's integrated USB is the deciding factor for benchtop and portable instruments: the DSPIC33EP256MU810T-I/PT can enumerate as a USB device for data streaming, configuration, and firmware updates while simultaneously running 60 MIPS DSP signal processing such as FFT analysis, filtering, or sensor correction on a 16-bit core. Distributor listings (Mouser, Jotrin, DigiKey) all headline 'USB' for this part, and the 256KB Flash accommodates USB stacks plus application DSP code. Combined with I2C and SPI for front-end ADCs, the single-chip architecture replaces a two-chip MCU-plus-USB-bridge design. Supply range is a standard 3V to 3.6V rail, simplifying integration into existing 3.3V instrument power trees.
Recommended
Automotive Control Nodes (E-grade)
For automotive-adjacent designs, the pin-identical DSPIC33EP256MU810T-E/PT variant of this controller is AEC-Q100 qualified per Microchip USA, making the MU810 platform viable for body, convenience, and auxiliary control nodes that also need USB diagnostics or ECAN networking. The design flow is identical: 3.3V supply, 100-TQFP 12x12 mm footprint, ECAN for in-vehicle networking, and the 60 MIPS core for sensor fusion or actuator control. Using the E/PT part on the same land pattern as the I/PT lets one PCB serve both industrial and automotive product lines, cutting qualification effort. Note that the standard I/PT variant described on this page is not itself AEC-Q100 qualified - always specify the E suffix for vehicle environments.
Recommended
Sensor Acquisition and DSP Signal Conditioning
The DSPIC33EP256MU810T-I/PT suits multi-channel sensing nodes that need local DSP: its 60 MIPS core performs digital filtering, RMS computation, and spectral analysis on-chip, while the family's advanced analog front end (per the datasheet family description) and 27 general-purpose timers handle precisely timed sampling. Interfaces to external ADCs run over SPI at high throughput; results are passed to a host via USB, UART, or ECAN. Typical deployments include vibration monitoring, power-quality meters, and industrial weighing systems where raw sensor data must be conditioned before transmission. The 28KB RAM buffers waveform captures, and 256KB Flash stores calibration tables and multi-protocol firmware, eliminating external memory in most designs.
Recommended
LED Lighting and Display Drivers
In professional LED lighting, the DSPIC33EP256MU810T-I/PT drives high-speed PWM channels for dimming and color mixing while running closed-loop current regulation at 60 MIPS - the dsPIC33EP family datasheet explicitly pairs high-speed PWM with digital power capability for lighting applications. Multi-channel fixtures use the 100-pin package's PWM breadth to drive several strings with independent phase-shifted dimming, reducing flicker and acoustic noise. The USB interface enables configuration from a PC or smart-luminaire commissioning tool, and ECAN links fixtures into networked architectural lighting systems. Compared to dedicated LED driver ICs, the DSC adds tunable color algorithms and communications, trading a higher unit cost for system-level flexibility and firmware upgradability in the field.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP256MU810T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP256MU810T-E/PT | DSPIC33EP256MU810T-I/PF | DSPIC33EP256GM710T-I/PF |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TQFP (12x12 mm) | 100-TQFP (12x12 mm) - same | 100-TQFP (14x14 mm) | 100-TQFP (14x14 mm) |
| Core Performance | 16-bit dsPIC33E, 60 MIPS | 16-bit dsPIC33E, 60 MIPS | 16-bit dsPIC33E, 60 MIPS | 16-bit dsPIC33E, 60 MIPS |
| Flash Memory | 256KB (85.5K x 24) | 256KB | 256KB | 256KB |
| USB | Yes | Yes | Yes | No (GM family, no USB) |
| Operating Temperature | -40C to +85C (I grade) | Extended grade (E), up to +125C | -40C to +85C (I grade) | -40C to +85C (I grade) |
| AEC-Q100 Qualified | No | Yes (per Microchip USA) | No | No |
| 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 |
| Packaging | Tape & Reel (T) | Tape & Reel (T) | Tape & Reel (T) | Tape & Reel (T) |
Key Differentiators
- Integrated USB in the 256KB/28KB memory class (vs DSPIC33EP256GM710T-I/PF)
- Compact 12x12 mm 100-pin body (vs DSPIC33EP256MU810T-I/PF)
- Automotive migration path on the same footprint (vs DSPIC33EP256MU810T-E/PT)
Design Notes
Power the DSPIC33EP256MU810T-I/PT from a clean 3.3V rail within the specified 3V to 3.6V window. Place 100nF ceramic decoupling capacitors at every VDD/VSS pair of the 100-TQFP plus 4.7uF-10uF bulk near the device. The internal core regulator requires the datasheet-specified VCAP capacitor - omitting it is a classic bring-up failure that prevents the core from starting. Estimated: a 60 MIPS fully active core draws on the order of tens of mA, so a 500 mA LDO or buck output provides ample margin.
The PT variant uses a 12x12 mm 100-TQFP with 0.5 mm pitch leads. Define the land pattern from the current Microchip datasheet dimensions, not from a PF (14x14 mm) footprint - the two suffixes are frequently confused and are mechanically different. Route the USB D+/D- pair as a 90-ohm differential pair with length matching, and keep ECAN/CAN transceiver stubs short. Provide at least one ICSP/ICD programming header (PGD/PGC/MCLR) accessible for PICkit 4 or REAL ICE during development.
Distinguish package suffixes before ordering: PT = 100-TQFP 12x12 mm, PF = 100-TQFP 14x14 mm - they are not footprint-identical, and mixing them causes assembly rejects. Also distinguish temperature grades: I/PT (-40C to +85C) versus E/PT (extended, AEC-Q100). Verify peripheral pin select assignments in firmware against the datasheet pin diagram, since re-mapped pins can silently break PWM or CAN routing. Confirm RoHS/material declarations on the Microchip product page for BOM sign-off.
Compliance Information
Verified web data contains no explicit RoHS/REACH/lead-free statements for this MPN; confirm via Microchip product page material declarations. The E-temperature variant DSPIC33EP256MU810T-E/PT is AEC-Q100 qualified per Microchip USA; this I-grade part is not listed as qualified.
