DSPIC33EP256GM710-H/PT - 70 MIPS 16-bit DSC, 256KB Flash | Microchip
MPN: DSPIC33EP256GM710-H/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.95 | $8.95 |
| 10 | $8.2 | $82.00 |
| 100 | $7.45 | $745.00 |
| 500 | $6.9 | $3,450.00 |
| 1,000 | $6.35 | $6,350.00 |
DSPIC33EP256GM710-H/PT Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and deterministic control of a microcontroller. Within the embedded hierarchy, the dsPIC33EP sits between general-purpose 16-bit MCUs and dedicated DSPs, making it a power management IC-adjacent solution for precision motion and power conversion, where a single controller closes current, speed, and position loops in real time.
Key features include the 70 MIPS dsPIC DSC core with DSP engine (single-cycle MAC, 40-bit accumulators), two on-chip operational amplifiers, 8 capture/compare channels plus quadrature encoder interface inputs for motor feedback, dual CAN modules, multiple UART/SPI/I2C ports, a 10/12-bit ADC with high-speed conversion rates, and Peripheral Pin Select (PPS) for flexible I/O mapping.
The dsPIC33EP256GM710 integrates these enhanced peripherals around an optimized pipeline that sustains single-cycle DSP instructions at full core speed. On-chip op amps allow direct connection of shunt-resistor current sensing, reducing external BOM cost in inverter designs. The extended -40C to +150C operating range of the H temperature grade supports under-hood automotive ECUs and high-power motor drives where junction temperatures exceed standard industrial limits.
Typical applications include brushless DC and PMSM motor control for automotive actuators, solar and industrial inverters, digital power supplies (PFC, LLC), and sensor-fusion embedded control in harsh environments.
When designing with this device, ensure the 3.0V to 3.6V supply rail is well decoupled at each VDD pin, and budget Flash/RAM carefully, as 256 KB of Flash and the RAM complement must accommodate both application code and motor-control ISR latency.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP256GM710-H/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 DSPIC33EP256GM710-H/PT (same form factor and footprint) — differing in Package, Operating Temperature, Program Memory Size, Quadrature Encoder Interfaces, RAM Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP256GM710-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP256GM710-E/PT
✅ Drop-In✓ In Stock
$5.65 / Unit
View Datasheet →DSPIC33EP512GM710-H/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.3 / Unit
View Datasheet →DSPIC33EP512GM710-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$10.21 / Unit
View Datasheet →DSPIC33EP512MU810-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
Contact for price
View Datasheet →DSPIC33EP256GM710-H/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC 16-bit DSC |
| CPU Speed | 70 MIPS |
| Program Memory Size | 256 KB Flash |
| RAM Size | 32 KB |
| Supply Voltage Range | 3 V to 3.6 V |
| Operating Temperature | -40C to +150C |
| Package | 100-TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Qualification | Automotive, AEC-Q100 |
| On-chip Op Amps | 2 |
| Capture/Compare Channels | 8 |
| Quadrature Encoder Interfaces | 2 |
| CAN Modules | 2 |
| Peripherals (per Mouser listing) | 12-bit ADC, 8 IC/OC, 2 QEI, 2 Op Amp |
| Peripheral Pin Select | Yes (PPS) |
| RoHS Status | Compliant |
| Series | dsPIC 33EP |
DSPIC33EP256GM710-H/PT 100-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP256GM710-H/PT (100-tqfp (12x12 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 DSPIC33EP256GM710-H/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP256GM710-H/PT is suitable for 6 applications: Automotive BLDC/PMSM Motor Control, Solar and Industrial Inverters, Digital Power Supplies (PFC, LLC), Industrial Robotics and Servo Drives, Automotive Body and Chassis Actuators, Test and Measurement Instruments.
Automotive BLDC/PMSM Motor Control
The DSPIC33EP256GM710-H/PT fits automotive motor control because its AEC-Q100 qualification and -40C to +150C operating range survive under-hood and transmission-adjacent thermal environments where industrial-grade MCUs fail. Its 70 MIPS DSP core executes field-oriented control (FOC) loops with single-cycle MAC operations, while the two on-chip op amps amplify shunt-resistor current measurements without external amplifier ICs, and the 2 QEI modules decode position feedback from encoders or resolvers. In a typical PMSM drive, the controller runs a 20 kHz current loop and 1 kHz speed loop from Flash-resident firmware, using the PWM outputs to drive a three-phase inverter stage. The dual CAN modules integrate the drive into vehicle networks for command and diagnostics, and the extended temperature rating removes derating pressure on thermal design, often eliminating forced-air cooling in compact actuator housings.
Recommended
Solar and Industrial Inverters
Grid-tied and industrial inverters demand deterministic DSP throughput and robust temperature tolerance, both delivered by the DSPIC33EP256GM710-H/PT. The 70 MIPS core sustains multi-loop control - fast inner current loops (10-20 kHz) and slower voltage/frequency loops - with headroom for MPPT algorithms running in parallel. On-chip op amps condition current-shunt and DC-link sensor signals directly, reducing signal-chain component count, while the high-speed ADC captures synchronized samples for distortion-sensitive control. The 150C rating suits outdoor string-inverter enclosures and thermally congested power stages where ambient near the controller can exceed +85C, and AEC-Q100 qualification adds an extra reliability margin for utility-grade products. Designers should budget the 256 KB Flash carefully, as MPPT, grid-code compliance, and communication stacks (CAN, UART) accumulate, and use Peripheral Pin Select to optimize PCB routing of high-current gate-drive signals away from sensitive analog traces.
Recommended
Digital Power Supplies (PFC, LLC)
Switch-mode power supplies with digital control benefit directly from the DSPIC33EP256GM710-H/PT's architecture. The DSP engine computes PFC inner-current loops and LLC burst-mode control with cycle-deterministic latency, critical for meeting power-factor and hold-up specifications. On-chip op amps allow direct interfacing with low-value shunt resistors on the AC input and DC-DC stages, while the ADC's simultaneous sampling supports input-voltage feedforward and output regulation from one converter IC. The 3.0V to 3.6V supply simplifies bias rails derived from the auxiliary winding. In server and telecom power shelves near hot exhaust paths, the -40C to +150C rating of the H grade prevents controller thermal shutdown that could interrupt service. Estimated benefit: consolidating op amps and controller on one die removes roughly two signal-chain ICs per phase, cutting BOM cost and board area in multi-kilowatt designs, while PPS permits gate-drive PWM pins to be placed optimally for EMI containment.
Recommended
Industrial Robotics and Servo Drives
Servo axes and multi-axis robot controllers require precise position feedback processing and fast control-loop closure - exactly the DSPIC33EP256GM710-H/PT's strengths. Its two QEI modules decode two incremental encoders natively, while the 70 MIPS core runs cascaded position/velocity/current loops at kHz rates with single-cycle multiply-accumulate filtering. Eight capture/compare channels generate complementary PWM for inverter bridges, and the dual CAN modules network multiple axes to a central motion planner in industrial automation cells. The extended -40C to +150C operating range tolerates drive cabinets near hot machinery or with clogged ventilation, and AEC-Q100 qualification signals the reliability level industrial customers expect. Peripheral Pin Select lets engineers route encoder and PWM signals to the physically most convenient pins, simplifying PCB layout around high-current stages. Firmware developed on the pin-identical industrial-grade -I/PT can migrate to the H grade without layout or code changes when a hotter deployment environment is discovered.
Recommended
Automotive Body and Chassis Actuators
Throttle-by-wire, electronic water pumps, turbo actuators, and active grille shutters all need a controller that survives engine-bay temperatures while delivering motor control, diagnostics, and CAN connectivity. The DSPIC33EP256GM710-H/PT meets this with AEC-Q100 qualification, -40C to +150C operation, dual CAN modules for in-vehicle networking, and enough Flash (256 KB) for ISO-style diagnostic stacks alongside the control firmware. Its two on-chip op amps read H-bridge shunt currents for stall detection and load monitoring, and the ADC plus comparators support fast over-current protection within a single control cycle. The DSP core margin beyond the control loop lets firmware run CRC-protected Flash integrity checks and plausibility monitoring demanded in safety-relevant actuator functions. Because the 100-pin TQFP provides abundant remappable I/O, one controller variant can serve multiple actuator programs, reducing qualification effort across a vehicle platform and shortening the path from prototype to production.
Recommended
Test and Measurement Instruments
Portable and bench instruments embedded in thermally demanding settings - handheld automotive scopes, battery testers, and environmental data loggers - use the DSPIC33EP256GM710-H/PT for its blend of DSP signal processing, flexible analog integration, and extended temperature rating. The 70 MIPS core performs windowing, FFT, and calibration math locally, the ADC plus op amps acquire sensor channels directly, and UART/SPI/I2C ports connect displays, storage, and USB bridges. The 150C ceiling suits instruments used in engine bays, HVAC systems, and industrial enclosures where internal temperature commonly exceeds +85C. With 256 KB Flash, one firmware image can hold acquisition routines, a menu-driven UI, and self-calibration tables. Peripheral Pin Select shortens board revisions because trace routing can change without schematic changes to the controller. Designers should verify RAM allocation early when implementing long capture buffers, and use the device's DMA-capable peripheral set to keep ISR overhead low during continuous sampling.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP256GM710-H/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP256GM710-I/PT | DSPIC33EP256GM710-E/PT | DSPIC33EP512GM710-H/PT | DSPIC33EP512MU810-I/PT |
|---|---|---|---|---|---|
| Package | 100-TQFP (12x12 mm) | 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 |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 256 KB | 256 KB | 256 KB | 512 KB | 512 KB |
| Operating Temperature | -40C to +150C | -40C to +85C | -40C to +125C | -40C to +150C | -40C to +85C |
| On-chip Op Amps | 2 | 2 | 2 | 2 | 3 |
| 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
- Extended -40C to +150C operation with AEC-Q100 qualification (vs DSPIC33EP256GM710-I/PT)
- Higher memory ceiling in the same footprint (vs DSPIC33EP512GM710-H/PT)
- On-chip op amps eliminate external current-sense amplifiers (vs DSPIC33EP512MU810-I/PT)
- E-grade cost optimization at +125C (vs DSPIC33EP256GM710-E/PT)
Design Notes
The DSPIC33EP256GM710-H/PT runs from a single 3.0V to 3.6V rail, but its internal core regulator and many VDD pins (10+ on the 100-TQFP) each need local decoupling. Place one 0.1 uF ceramic per VDD/VSS pin pair within 2 mm of the pins, plus bulk 10 uF at the corners of the package. In automotive designs, put a reverse-polarity-protected, load-dump-rated 5V input stage followed by a 3.3V LDO or buck with adequate transient response upstream, and enable the device's brown-out reset so the MCU does not execute corrupt code during crank transients.
Estimated: the -H grade is specified to +150C ambient/junction environment, so verify your actual junction temperature, not just ambient. For a typical automotive actuator with 60 mA at 3.3 V, internal dissipation is roughly 0.2 W - negligible. The real thermal driver is the environment: with the TQFP-100 theta_JA typically around 40-50 C/W (estimate - check datasheet DS70000689 for exact value), a +125C ambient leaves little margin. Use 2-oz copper planes under the package and thermal vias if enclosure temperatures exceed +105C, and confirm the H grade rating against your worst-case soak test.
Do not assume I/O assignments are fixed: most pins on the GM710 are remappable through Peripheral Pin Select (PPS), and forgetting to map an RPn pin leaves the peripheral unconnected with no compile-time error in some toolchains - a common bring-up failure. Also, RAM sizing matters: distributor pages conflict on 16 KB vs 32 KB RAM for the GM710; confirm the exact figure in DS70000689 before allocating large control-loop buffers. Finally, when substituting the -I/PT grade in a -H/PT socket, re-verify the application's maximum ambient, since +85C is a real limit in under-hood environments.
On the 100-pin TQFP with PPS routing flexibility, group fast PWM outputs on one side of the package and analog op-amp/ADC inputs on the opposite side. Keep shunt-sense traces Kelvin-routed to the op-amp inputs and reference them to a quiet analog ground island. Because the on-chip op amps drive the internal ADC, crosstalk from switching PWM lines into these high-impedance inputs shows up directly as current-loop measurement error - typically visible as audible noise or torque ripple in motor drives. Use a solid ground plane and separate gate-driver returns from logic ground.
Compliance Information
Listed as 'Automotive, AEC-Q100, dsPIC 33EP Series' per Hotenda/distributor data. RoHS and lead-free status per standard Microchip TQFP offering; REACH and halogen-free status not stated in provided data.
