DSPIC33EP256GM710T-I/PF - 16-bit 70 MIPS DSC 256KB Flash | Microchip
MPN: DSPIC33EP256GM710T-I/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.92 | $7.92 |
| 10 | $7.21 | $72.10 |
| 100 | $6.55 | $655.00 |
| 500 | $5.94 | $2,970.00 |
| 1,000 | $5.4 | $5,400.00 |
DSPIC33EP256GM710T-I/PF Overview
A digital signal controller combines the computational architecture of a microcontroller with the math acceleration of a DSP. In the embedded hierarchy, the dsPIC33E family sits between general-purpose MCUs and dedicated DSPs: it executes single-cycle MAC and DSP instructions while retaining MCU-style peripherals, making it a power management IC ecosystem partner for precision motor and digital power designs.
Key features include the 70 MIPS dsPIC33E core, 12-channel motor control PWM (MCPWM), 8 input capture and 8 output capture/compare channels, 2 quadrature encoder interfaces (QEI), 4 integrated operational amplifiers, a charge time measurement unit (CTMU), and a peripheral trigger generator (PTG). These peripherals eliminate external analog signal-conditioning stages in sensor and motor feedback loops.
Technically, the dsPIC33EP core uses an enhanced Harvard architecture with a multiple internal bus (MIB) system, allowing simultaneous instruction and data fetches. DSP engine instructions execute in a single cycle, and the ECAN/CAN module supports industrial networking. The industrial temperature grade (-40C to +85C) covers most factory environments.
Typical applications include precision brushless DC and PMSM motor control drives, digital power supplies and solar inverters, and industrial sensor fusion nodes where the on-chip op-amps and CTMU reduce BOM count.
Design consideration: at 70 MIPS the device is typically clocked from an external crystal via the on-chip PLL; budget PCB space for a clean analog ground plane under the integrated op-amp pins to preserve signal integrity.
This page synthesizes distributor pricing, same-footprint drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33EP256GM710T-I/PF — 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/PF (same form factor and footprint) — differing in Package, Operating Temperature, Program Memory Size, Timers, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP256GM710T-E/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP256GM710-H/PF
✅ Drop-In✓ In Stock
$5.25 / Unit
View Datasheet →DSPIC33EP256GM710T-I/PT
✅ Drop-In✓ In Stock
$5.25 / Unit
View Datasheet →DSPIC33EP512GM710T-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.8 / Unit
View Datasheet →DSPIC33EP128GM710T-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.15 / Unit
View Datasheet →DSPIC33EP256GM710T-I/PF Maximum Ratings & Electrical Characteristics
| Core | dsPIC 33EP 16-bit |
| Maximum CPU Speed | 70 MIPS |
| Program Memory Size | 256KB (85.5K x 24) Flash |
| RAM Size | 16KB |
| Supply Voltage | 3.3 V |
| Motor Control PWM Channels | 12 (MCPWM) |
| Input Capture / Output Compare | 8 / 8 |
| Quadrature Encoder Interfaces | 2 (QEI) |
| Integrated Op-Amps | 4 |
| Charge Time Measurement Unit | CTMU |
| Peripheral Trigger Generator | PTG |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 100-TQFP (14 x 14 mm), 0.5 mm pitch |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Qualification | AEC-Q100 (family per distributor data) |
| Series | dsPIC33EPxxxGM7xx |
DSPIC33EP256GM710T-I/PF 100-tqfp (14 x 14 mm), 0.5 mm pitch Pin Configuration Guide
Pin configuration for DSPIC33EP256GM710T-I/PF (100-tqfp (14 x 14 mm), 0.5 mm pitch 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/PF.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP256GM710T-I/PF is suitable for 6 applications: Precision BLDC/PMSM Motor Control, Digital Power Supplies and Inverters, Industrial Sensor Fusion and DAQ Nodes, Automotive-Adjacent Embedded Control Units, Embedded Audio and Signal Processing, Robotics and Motion Control.
Precision BLDC/PMSM Motor Control
The DSPIC33EP256GM710T-I/PF is purpose-built for field-oriented control (FOC) of brushless DC and permanent-magnet synchronous motors. Its 70 MIPS core executes single-cycle MAC instructions, sustaining current-loop bandwidths in the tens of kilohertz, while the 12-channel MCPWM module generates complementary PWM pairs with dead-time insertion. The 4 on-chip op-amps amplify shunt current signals, and the 2 QEI modules interface directly with rotary encoders for position feedback, eliminating external amplifiers and encoder-interface ICs. Designers typically run a 10-20 kHz FOC loop; the integrated PTG offloads deterministic ADC triggering from software. Trade-off: the 3.3V supply requires level shifting or gate drivers between the DSC and the power stage, so pair it with a dedicated three-phase gate driver.
Recommended
Digital Power Supplies and Inverters
In digitally controlled AC-DC, DC-DC, and solar micro-inverter designs, this DSC replaces analog control loops with firmware compensation. The 70 MIPS dsPIC33E core implements proportional-integral compensators at switching frequencies up to several hundred kilohertz using the MCPWM module's high-resolution capabilities, and the 8 input capture channels timestamp events for peak current-mode control. The CTMU supports precise time measurements for adaptive dead-time control, improving efficiency. On-chip op-amps condition current-shunt feedback, cutting BOM cost versus an external amplifier. Because the 16KB RAM buffers fast ADC sample streams, multi-phase interleaved converters can be controlled from a single device. The trade-off versus a dedicated digital power controller is software development effort, but flexibility across product variants is substantially higher.
Recommended
Industrial Sensor Fusion and DAQ Nodes
The DSPIC33EP256GM710T-I/PF serves as the processing hub for multi-sensor industrial nodes. Its 4 integrated op-amps buffer low-level signals from pressure, current, and temperature sensors; the CTMU provides charge-based capacitive and time-of-flight measurements; and the 8/8 input capture/output compare suite handles precise event timing. With 256KB Flash, full communication stacks plus a lightweight signal-processing pipeline fit in program memory without external storage. The ECAN module connects the node to industrial CAN buses, a common factory networking standard. In a typical deployment the DSC samples multiple analog channels at kilohertz rates, filters them on-chip, and transmits processed results over CAN or UART, reducing host processor load. Operating from 3.3V at -40C to +85C suits factory-floor enclosures.
Recommended
Automotive-Adjacent Embedded Control Units
Distributor qualification data lists AEC-Q100 for this part's family, and the dsPIC33EP256GM710 platform is used in harsh-environment control units such as pumps, fans, actuators, and auxiliary drives. The 12 MCPWM channels drive valve solenoids and small motors; the QEI modules read position sensors; and the 4 op-amps amplify automotive-style resistive shunt feedback. The extended-temperature sibling DSPIC33EP256GM710T-E/PF (rated to +125C) shares the identical footprint, letting one PCB layout span industrial and high-heat variants. Firmware-level control of PWM dead-time and fast fault trip through the MCPWM module provides functional-safety-friendly protection behavior. Designers should verify the exact qualification level of their ordering code against Microchip's official product page before releasing an automotive build.
Recommended
Embedded Audio and Signal Processing
The dsPIC DSP engine (single-cycle MAC, dual operand fetch, modular/bit-reversed addressing) makes the DSPIC33EP256GM710T-I/PF effective for real-time audio preprocessing: active noise cancellation, acoustic echo control, and tone generation. At 70 MIPS, a 100-tap FIR filter at 16 kHz sample rate consumes only a few MIPS, leaving ample headroom for multiple concurrent channels. The 16KB RAM holds sample buffers and filter coefficient sets, while 256KB Flash stores multi-language prompt tables and signal-processing libraries. The 8 output-compare channels can generate complementary audio-rate PWM outputs for class-D style drive or simple DAC substitution with external reconstruction filtering. For full-featured audio products, the DSC commonly pairs with a dedicated codec over SPI/I2C rather than replacing one.
Recommended
Robotics and Motion Control
Multi-axis robotic joints benefit from this DSC's combination of encoder interfaces, PWM channels, and math throughput. Two QEI modules decode two incremental encoders simultaneously; the 12 MCPWM channels can each drive H-bridge or servo outputs; and 8 input captures timestamp hall or limit-switch events for commutation and safety logic. The 70 MIPS core runs cascaded position/velocity/current loops per axis, and the PTG sequences ADC/PWM operations deterministically without CPU intervention, reducing loop jitter - a key requirement for smooth motion. The 100-pin TQFP exposes enough I/O to manage endstops, brakes, and communication (CAN/UART) on one chip. For systems exceeding two axes, multiple DSCs link over the ECAN bus with a supervisory controller.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP256GM710T-I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP256GM710T-E/PF | DSPIC33EP256GM710-H/PF | DSPIC33EP512GM710T-I/PF | DSPIC33EP128GM710T-I/PF |
|---|---|---|---|---|---|
| Package | 100-TQFP (14 x 14 mm) | 100-TQFP (14 x 14 mm) - same | 100-TQFP (14 x 14 mm) - same | 100-TQFP (14 x 14 mm) - same | 100-TQFP (14 x 14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 256KB (85.5K x 24) | 256KB | 256KB | 512KB | 128KB |
| RAM | 16KB | 16KB | 16KB | 16KB | 16KB |
| Operating Temperature | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| MCPWM / QEI / Op-Amps | 12 / 2 / 4 | 12 / 2 / 4 | 12 / 2 / 4 | 12 / 2 / 4 | 12 / 2 / 4 |
| Lifecycle Status | Active | Active | Active | Active | Active |
Key Differentiators
- Integrated 4-op-amp analog front end (vs DSPIC33EP256GM710T-E/PF)
- Upgradable program memory in the same footprint (vs DSPIC33EP512GM710T-I/PF)
- Cost-optimized memory option for simpler firmware (vs DSPIC33EP128GM710T-I/PF)
Design Notes
Place 0.1uF ceramic decoupling capacitors within 2-3 mm of each VDD pin pair, plus one bulk 4.7-10uF capacitor near the device. The 100-pin 0.5 mm pitch TQFP requires fine-pitch routing; fan out with 4-mil traces and define the crystal (primary oscillator) traces as short as possible with a guard ground. Route the op-amp input pins away from MCPWM switching lines to prevent PWM coupling into analog front ends.
The integrated op-amps and CTMU are sensitive to ground bounce from the 12-channel MCPWM module. Use a solid, unbroken ground plane and physically separate the analog pin group from PWM-output routing. Estimated: with PWM edge rates of a few nanoseconds driving gate-charge loads, ground return currents can inject tens of millivolts of bounce; a single-plane layout with star ADC references keeps this below the op-amp input-referred noise floor.
Do not confuse ordering-code suffixes: /PF and /BG share identical silicon but completely different packages (TQFP vs BGA) - the /BG is NOT drop-in. Also note that the T suffix means Tape & Reel media, not a silicon change. Finally, the -I grade is rated to +85C; for enclosures above that, order the -E/PF extended variant instead of attempting thermal derating.
Compliance Information
Distributor data (YC-Electronics) lists AEC-Q100 qualification for this part number's family. RoHS/REACH/lead-free status was not explicitly stated in the provided data - verify on the Microchip product page before finalizing compliance documentation.
