DSPIC33EP256MU810-I/PT - 60MHz 256KB DSC 100-TQFP | Microchip
MPN: DSPIC33EP256MU810-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $13.01 | $13.01 |
| 10 | $12.4 | $124.00 |
| 100 | $11.5 | $1,150.00 |
| 500 | $10.8 | $5,400.00 |
| 1,000 | $10.2 | $10,200.00 |
DSPIC33EP256MU810-I/PT Overview
A digital signal controller combines the compute pipeline of a digital signal processor (DSP) with the peripheral set and control architecture of a microcontroller (MCU). Within the power management hierarchy of embedded systems, the dsPIC33EP family sits above basic 16-bit MCUs and provides hardware multiply-accumulate (MAC) DSP instructions, making it a bridge between general-purpose microcontrollers and dedicated DSPs for real-time control.
Key features include high-speed PWM modules for precision motor control, dual CAN 2.0B controllers, an integrated full-speed USB 2.0 device module, multiple UART/SPI/I2C serial ports, advanced analog peripherals (12-bit ADC with multiple sample-and-hold channels), and up to 51 general-purpose I/O. The extended DSP instruction set enables single-cycle MAC and 40-bit accumulators for control-loop mathematics.
Architecturally, the dsPIC33EP core uses a modified Harvard pipeline with 24-bit instruction words, hardware looping, and bit-reversal addressing for FFT operations. Flash is self-programmable, supporting field firmware updates. The peripheral ecosystem is supported by MPLAB X IDE and XC16 compiler toolchains.
Typical applications include dual-axis brushless DC and PMSM motor drives, digital power supplies (PFC, LLC), UPS systems, industrial automation nodes using dual CAN, and USB-connected instrumentation where the on-chip USB device controller removes the need for an external interface chip.
Design consideration: the 3.0-3.6 V supply requires a clean 3.3 V rail with local 0.1 uF decoupling on every VDD/VSS pair; use MPLAB Code Configurator to reduce peripheral bring-up time.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP256MU810-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 DSPIC33EP256MU810-I/PT (same form factor and footprint) — differing in Package, Supply Voltage, Core, Packaging, Serial Interfaces.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP256MU810-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP256MU810-I/PF
✅ Drop-In✓ In Stock
$5.4 / Unit
View Datasheet →DSPIC33EP256MU810T-I/PT
✅ Drop-In✓ In Stock
$4.8 / Unit
View Datasheet →DSPIC33EP256GM710T-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.4 / Unit
View Datasheet →DSPIC33EP256MU810-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E DSC |
| CPU Speed | 60 MHz (up to 70 MIPS) |
| Flash Program Memory | 256 KB |
| SRAM | 28 KB |
| Supply Voltage | 3 V to 3.6 V (3.3 V nominal) |
| I/O Ports | 51 I/O |
| Package | 100-TQFP (12x12 mm, PT) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| USB | USB 2.0 full-speed device |
| CAN Controllers | Dual CAN 2.0B |
| Timers | General purpose timers / high-speed PWM |
| Serial Interfaces | UART, SPI, I2C |
| ROM Type | Flash (self-programmable) |
| Lifecycle Stage | Active |
| RoHS Status | Compliant |
DSPIC33EP256MU810-I/PT 100-tqfp (12x12 mm, pt) Pin Configuration Guide
Pin configuration for DSPIC33EP256MU810-I/PT (100-tqfp (12x12 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 DSPIC33EP256MU810-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP256MU810-I/PT is suitable for 6 applications: Precision Motor Control (BLDC/PMSM Drives), Digital Power Supplies (PFC / LLC / UPS), USB-Connected Industrial Instruments, Industrial Automation and CAN Networking Nodes, Automotive-Style Body and Ancillary Control, Audio and Signal Processing Applications.
Precision Motor Control (BLDC/PMSM Drives)
Microchip positions the dsPIC33EP MU family explicitly for high-performance precision motor control. The high-speed PWM modules generate complementary outputs with dead-time insertion for three-phase inverters, while the 70 MIPS DSP core with single-cycle MAC executes field-oriented control (FOC) loops fast enough for low-inductance servo motors. The 256 KB flash holds FOC stacks plus communication firmware, and 28 KB SRAM supports state observers. The DSPIC33EP256MU810-I/PT's dual CAN 2.0B controllers connect drives into industrial networks, and its -40C to +85C grade suits drive enclosures. Use current-sense amplifiers feeding the 12-bit ADC for phase-current sampling synchronized to PWM triggers, and verify 3.3 V rail integrity at the high dV/dt environment.
Recommended
Digital Power Supplies (PFC / LLC / UPS)
In digitally controlled power conversion, the DSPIC33EP256MU810-I/PT closes current and voltage loops with its high-speed PWM (phase-shifted and complementary modes) and fast 12-bit ADC triggered directly from the PWM module for deterministic sampling instants. The DSP core's 40-bit accumulators handle loop-filter arithmetic without saturation concerns at 70 MIPS. The 3.0-3.6 V supply and -I temperature grade fit controller boards inside UPS and telecom rectifier enclosures. Design trade-off: unlike analog controllers, firmware-based control gives programmable protection and adaptive modes, but adds firmware validation burden; Microchip application notes provide reference software for PFC and LLC topologies on the dsPIC33EP platform.
Recommended
USB-Connected Industrial Instruments
The integrated USB 2.0 full-speed device module (confirmed in Mouser and Hotenda listings as '60MHz USB') lets the DSPIC33EP256MU810-I/PT enumerate directly as a USB device - no external USB interface chip required. This makes it a strong controller for bench instruments, data-logger front ends, and motor-tuning adapters that stream sensor data to a PC. Combined with UART/SPI/I2C for local sensors and 51 I/O for status and control, a single 100-pin TQFP replaces what historically required an MCU plus a USB bridge IC. Budget the 256 KB flash for the USB stack plus application; Microchip provides USB device stacks for the dsPIC33EP family in MPLAB libraries.
Recommended
Industrial Automation and CAN Networking Nodes
With dual independent CAN 2.0B controllers, the DSPIC33EP256MU810-I/PT can bridge two CAN buses or act as a gateway between a machine bus and a higher-level network - a common requirement in factory automation, building control, and CANopen devices. The 70 MIPS core processes protocol stacks while servicing control tasks, and 51 I/O handle digital I/O expansion. Pair the CAN controllers with 3.3 V CAN transceivers and proper bus termination. The -40C to +85C industrial rating and RoHS compliance suit standard industrial BOM requirements, and dual CAN redundancy improves node availability in safety-relevant segments of the network.
Recommended
Automotive-Style Body and Ancillary Control
The dual CAN interface, high-speed PWM, and rich analog integration of the dsPIC33EP256MU810-I/PT map well to auxiliary vehicle controllers - pump control, fan modules, lighting controllers, and actuator drivers - especially in off-highway and specialty equipment where a full AEC-Q100 part is not mandated. The DSP core handles sensor filtering (IIR/FIR) and PWM output stages, while CAN links the node to the vehicle backbone. Note that the -I grade is -40C to +85C; for under-hood locations verify ambient derating or evaluate the extended-temperature -E/PT variant of the same die. Use the 12-bit ADC with ratiometric sensor configurations for robust analog inputs in noisy 12 V/24 V electrical environments.
Recommended
Audio and Signal Processing Applications
The dsPIC33E core's DSP instruction set - single-cycle multiply-accumulate, dual operand fetch, bit-reversal addressing for FFTs - makes the DSPIC33EP256MU810-I/PT effective for real-time audio processing: active crossovers, equalization, echo cancellation, and effects processing at 48 kHz sample rates. The 12-bit ADC digitizes inputs while PWM-based or external DAC stages reconstruct output; the 70 MIPS budget supports multiple biquad filters per channel. The 256 KB flash accommodates parameter storage and multiple processing profiles. For higher-fidelity designs, pair with a dedicated audio codec over I2S-class serial interfaces or use SPI DACs; evaluate latency and dynamic range against dedicated DSP alternatives early in the design.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP256MU810-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP256MU810-E/PT | DSPIC33EP256MU810-I/PF | DSPIC33EP256GM710T-I/PF |
|---|---|---|---|---|
| Package | 100-TQFP (12x12 mm, PT) | 100-TQFP (PT) - same | TQFP-100 - same footprint | TQFP-100 - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 60 MHz (70 MIPS) | 60 MHz (70 MIPS) | 60 MHz (70 MIPS) | 60 MHz (70 MIPS) |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB |
| USB Module | Yes (full-speed device) | Yes (full-speed device) | Yes (full-speed device) | No (GM family) |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| Lifecycle Status | Active | Active | Active | Active |
Key Differentiators
- USB device integrated on-chip (vs DSPIC33EP256GM710T-I/PF)
- Extended temperature option on identical die (vs DSPIC33EP256MU810-E/PT)
- Dual CAN plus USB in a single 100-pin DSC (vs DSPIC33EP256MU810-I/PF)
Design Notes
The DSPIC33EP256MU810-I/PT requires a 3.0-3.6 V supply. Place 0.1 uF ceramic decoupling capacitors at every VDD/VSS pin pair (the 100-pin TQFP has multiple power pairs) plus bulk capacitance near the device. Estimated: at 70 MIPS with all peripherals active, core current is in the tens-of-mA class per Microchip family data; verify exact ICC from the datasheet electrical characteristics table for your supply budget. Avoid sharing this rail with high-current PWM gate drivers - star-route or use a ferrite bead to isolate the controller rail from switching noise.
For the 100-TQFP (PT) footprint, use a 0.5 mm pitch land pattern per Microchip's package drawing and keep VDD/VSS via stubs short. Route the crystal (primary oscillator) traces short and guard them with ground; keep PWM outputs away from analog ADC inputs. The ICSP/ICD programming pins (PGD/PGC) should be brought to a 5-pin header with series 100-ohm resistors so production programming does not conflict with application circuitry. Provide testpoints on CAN_H/CAN_L for bus compliance checking.
Common pitfalls: (1) substituting a /PF part without checking the mechanical TQFP drawing - electrically identical but confirm the footprint; (2) assuming 5 V tolerance - the device is 3.0-3.6 V only; (3) forgetting to configure configuration words (oscillator source, watchdog, code protection) which are stored in flash and reset the part if wrong; (4) using the -I grade above +85C ambient - switch to the -E/PT variant for extended temperature. Always verify the USB module clock source (requires the correct oscillator setup for 12 Mbps timing).
Compliance Information
RoHS compliance indicated in distributor comparison listings (etei.com RoHS field comparisons). REACH, halogen-free, and conflict-minerals status should be confirmed from Microchip's official environmental data page for this MPN.
