DSPIC33EP256GM710T-I/PT - 16-bit 70 MIPS DSC, 256KB Flash | Microchip
MPN: DSPIC33EP256GM710T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.85 | $7.85 |
| 10 | $7.1 | $71.00 |
| 100 | $6.35 | $635.00 |
| 500 | $5.8 | $2,900.00 |
| 1,000 | $5.25 | $5,250.00 |
DSPIC33EP256GM710T-I/PT Overview
A digital signal controller combines the computational power of a DSP core with the peripheral integration and deterministic interrupt architecture of a microcontroller. In the embedded hierarchy, a DSC sits between a general-purpose MCU and a dedicated DSP: it executes single-cycle MAC and DSP instructions for real-time control loops while retaining ADC, PWM, and communication peripherals on one die. Microchip's dsPIC33E family targets precision embedded control in motor drives, power conversion, and digital sensing systems.
Key features of this device include the enhanced dsPIC33E CPU core rated at 70 MIPS, twelve-channel complementary-output PWM hardware, two quadrature encoder interface (QEI) modules, integrated operational amplifiers, and a Peripheral Trigger Generator (PTG) for autonomous peripheral sequencing. Dual CAN 2.0B controllers support industrial networking and automotive-style field buses, making the part suitable for multi-node control systems.
Technically, the device integrates DSP engine instructions (MAC, DSP multiply), four DMA channels for data movement without CPU intervention, thirteen timers, and four serial I/O ports for UART/SPI/I2C connectivity. The integrated op-amps reduce external component count in current-sense front ends, a typical requirement of field-oriented motor control. Flash program memory of 256KB provides headroom for complex field-oriented control (FOC) firmware, state machines, and communication stacks.
Typical applications include brushless DC and PMSM motor drives, solar inverters and power-factor-correction converters, industrial sensor nodes with CAN backbones, and digital power supplies requiring fast closed-loop control at 70 MIPS execution rates.
For design, note that the I-grade temperature range is -40C to +85C; for extended-temperature designs Microchip offers the E-grade (-40C to +125C) variant. Decouple each VDD pin with 0.1uF ceramics and use the reference-design layout guidance from the manufacturer datasheet.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP256GM710T-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 DSPIC33EP256GM710T-I/PT (same form factor and footprint) — differing in Package, Quadrature Encoder Interfaces, Operating Temperature, Packaging, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP512GM710T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$13.85 / Unit
View Datasheet →DSPIC33EP128GM710T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.74 / Unit
View Datasheet →DSPIC33EP256MC710T-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128GM310T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.68 / Unit
View Datasheet →DSPIC33FJ256MC710A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP256GM710T-I/PT Maximum Ratings & Electrical Characteristics
| Core Processor | dsPIC33E 16-bit DSC core |
| Core Size | 16-bit |
| Maximum Speed | 70 MIPS |
| Flash Program Memory | 256KB (85.5K x 24) |
| SRAM | 32KB |
| Package | 100-TQFP (12x12 mm), PT |
| Mounting Type | Surface Mount |
| CAN Controllers | 2 x CAN 2.0B |
| PWM Channels | 12 PC PWM (complementary outputs) |
| Quadrature Encoder Interfaces | 2 x QEI |
| Integrated Op-Amps | Yes (on-chip operational amplifiers) |
| Timers | 13 |
| DMA Channels | 4 |
| Serial I/O Ports | 4 |
| Peripheral Trigger Generator | Yes (PTG) |
| Operating Temperature | -40C to +85C (I grade) |
| Supply Voltage | 3.0 V to 3.6 V |
DSPIC33EP256GM710T-I/PT 100-tqfp (12x12 mm), pt Pin Configuration Guide
Pin configuration for DSPIC33EP256GM710T-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 DSPIC33EP256GM710T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP256GM710T-I/PT is suitable for 6 applications: Field-Oriented Motor Control, Digital Power Conversion, Industrial CAN Networking Nodes, Sensor Signal Conditioning and Acquisition, Robotics and Multi-Axis Motion, Battery-Managed Power Systems.
Field-Oriented Motor Control
The DSPIC33EP256GM710T-I/PT is purpose-built for FOC of PMSM and BLDC motors: its 70 MIPS core executes the current-loop mathematics with single-cycle MAC instructions, while 12 complementary PWM channels drive the three-phase inverter with dead-time control. Two QEI modules read position feedback from two independent motors, and the on-chip op-amps amplify shunt-resistor current signals without external components, reducing BOM cost and offset error. Running the control loop at 16-20 kHz PWM frequency leaves ample CPU margin for supervisory logic and CAN communication on the two integrated CAN 2.0B controllers. The 256KB Flash holds full FOC firmware plus parameter tables and a bootloader for field updates.
Recommended
Digital Power Conversion
In solar inverters, PFC stages, and LLC resonant converters, the DSPIC33EP256GM710T-I/PT closes fast voltage and current loops using its 70 MIPS core and high-speed 16-bit ADC sampling synchronized to the PWM period. The Peripheral Trigger Generator (PTG) sequences ADC conversions and PWM updates autonomously, giving deterministic loop timing independent of interrupt latency - critical for maintaining stability in peak-current-mode converters. Complementary PWM outputs with programmable dead time drive half-bridge and full-bridge power stages directly through gate-driver ICs. The 256KB Flash supports multi-mode firmware (grid-tie, standby, fault handling) and the dual CAN interface enables inverter-to-controller communication in distributed power architectures.
Recommended
Industrial CAN Networking Nodes
With two independent CAN 2.0B controllers, the DSPIC33EP256GM710T-I/PT acts as a gateway or bridge between two CAN segments - a task that would otherwise require two MCUs. Nodes can terminate sensor data, run local control logic at 70 MIPS, and forward filtered traffic between buses. Four serial I/O ports add UART, SPI, and I2C links to local peripherals such as displays and EEPROMs, while 4 DMA channels stream ADC and communication data without CPU overhead. The 256KB Flash accommodates protocol stacks, diagnostics, and OTA-style field update code, and the industrial -40C to +85C temperature range suits factory-floor enclosures. Pair with a CAN transceiver per bus.
Recommended
Sensor Signal Conditioning and Acquisition
The on-chip operational amplifiers of the DSPIC33EP256GM710T-I/PT let a single chip amplify low-level sensor signals - strain gauges, thermocouples via cold-junction scaling, or shunt currents - and digitize them with the integrated high-speed ADC. At 70 MIPS, DSP filter instructions (FIR/IIR via MAC operations) implement digital filtering, RMS computation, and calibration in real time. The PTG autonomously triggers sampling sequences, producing jitter-free acquisition timestamps. Dual CAN and four serial ports export processed data to plant networks or host systems. The 100-pin TQFP exposes sufficient analog-capable I/O for multi-channel front ends in test stands, weigh scales, and process-monitoring equipment operating from -40C to +85C.
Recommended
Robotics and Multi-Axis Motion
Multi-axis robots and CNC-class machines need simultaneous, coordinated control of several motors. The DSPIC33EP256GM710T-I/PT's 12 PWM channels can drive two three-phase axes (or four DC motors), and the two QEI modules close position loops on two encoders concurrently. The 70 MIPS core runs trajectory interpolation, kinematics, and dual FOC loops in one device, while 4 DMA channels shuttle encoder counts and ADC current samples without stealing cycles. Dual CAN links the controller to a higher-level robot bus; four serial ports connect to joysticks, safety PLCs, and debugging consoles. The 256KB Flash stores trajectory tables and homing routines for each axis.
Recommended
Battery-Managed Power Systems
In battery testers, UPS systems, and telecom rectifiers, the DSPIC33EP256GM710T-I/PT manages charge algorithms, state-of-charge estimation, and inverter control on one die. Its 70 MIPS core executes coulomb counting and Kalman-style estimation in real time; complementary PWM stages control the DC-DC conversion power path with current-mode regulation using on-chip op-amps for shunt sensing. Dual CAN 2.0B ports report battery status to a site controller and daisy-chain multiple battery modules in parallel strings - one CAN per segment. Four serial ports add local logging and configuration access, and the -40C to +85C industrial rating covers outdoor cabinets. Firmware updates ride on CAN for field servicing.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP256GM710T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512GM710T-I/PT | DSPIC33EP128GM710T-I/PT | DSPIC33EP256MC710T-I/PT | DSPIC33FJ256MC710A-I/PT |
|---|---|---|---|---|---|
| Package | 100-TQFP (12x12 mm), PT | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 40 MIPS |
| Flash Program Memory | 256KB (85.5K x 24) | 512KB | 128KB | 256KB | 256KB |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Core Generation | dsPIC33E | dsPIC33E | dsPIC33E | dsPIC33E | dsPIC33F (legacy) |
Key Differentiators
- Twice the Flash headroom option within the same footprint (vs DSPIC33EP512GM710T-I/PT)
- Dual CAN 2.0B in a single DSC (vs DSPIC33FJ256MC710A-I/PT)
- Integrated op-amps reduce external analog BOM (vs DSPIC33EP128GM710T-I/PT)
Design Notes
Place a 0.1uF ceramic decoupling capacitor at every VDD pin pair, within 2 mm of the pin, plus at least one bulk 10uF capacitor per power domain. The 100-TQFP has VDD/VSS pins distributed on multiple sides; do not share a single capacitor between two power pins. Connect all VSS pins to a solid, unbroken ground plane - the ADC and on-chip op-amp accuracy depends directly on ground integrity. Follow the decoupling layout shown in the Microchip family datasheet reference design rather than inventing a custom arrangement.
The device runs from a single 3.0-3.6V rail; provide a local 3.3V LDO or buck with low output ripple. Estimated: at 70 MIPS with all peripherals active, core plus I/O current stays in the low hundreds of milliamps, so a 500 mA regulator gives comfortable margin. Verify actual ICC figures against the electrical characteristics tables in the manufacturer datasheet before finalizing regulator sizing. Sequencing is not required for a single-rail design, but ensure the rail ramps monotonically to avoid the internal POR mis-triggering.
The 100-pin TQFP multiplexes PWM, QEI, CAN, and analog functions across many pins: peripherals are not fixed to one pin and are assigned via the Peripheral Pin Select-style configuration. A common failure is assuming default pin assignments during board layout, then discovering the CAN TX sits on a pin also needed for PWM. Map all functions using Microchip's pin configuration tools before routing, and reserve test points on SWD/ICSP programming pins. Also confirm the -I grade ceiling of +85C; use the -E/PT variant for hotter enclosures.
Keep the PWM output traces to gate drivers short and, where possible, route complementary pairs together as a differential-looking pair to preserve dead-time symmetry. CAN bus stubs should be under 0.3 m with 120-ohm termination at both physical ends of each of the two CAN networks. Route the analog sensor inputs (connected to the on-chip op-amp inputs) away from PWM and crystal traces; a grounded guard trace between analog and switching sections measurably reduces ADC noise coupling.
Compliance Information
Compliance status was not stated in the provided verified web data; confirm RoHS/REACH/lead-free status on the Microchip product page or distributor compliance certificates before procurement.
