DSPIC33FJ256MC710-I/PT - 40 MIPS DSC 256KB | Microchip
MPN: DSPIC33FJ256MC710-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $22.22 | $22.22 |
| 10 | $21.4 | $214.00 |
| 25 | $20.6 | $515.00 |
| 100 | $19.75 | $1,975.00 |
| 1,000 | $18.9 | $18,900.00 |
DSPIC33FJ256MC710-I/PT Overview
A Digital Signal Controller blends the peripherals and ease of use of a microcontroller (MCU) with the mathematical throughput of a digital signal processor (DSP). In the power-management hierarchy, a DSC sits above general-purpose MCUs for control-loop tasks such as field-oriented motor control, where single-cycle MAC and DSP instructions shorten loop latency. The dsPIC33F family from Microchip occupies the 16-bit embedded controller tier, alongside the PIC24 MCU family with which it shares its core architecture.
Key features of the DSPIC33FJ256MC710-I/PT include 40 MIPS execution from a phase-locked loop driven by its internal oscillator, 256 KB of self-programmable Flash for field upgrades, an extensive DMA controller, ECAN module, and motor-control-oriented PWM peripherals. Its dual ADC architecture supports simultaneous sampling suited to three-phase current sensing.
Architecturally, the dsPIC33F core is a modified Harvard 16-bit processor with DSP engine extensions, including a 17-bit by 17-bit multiplier, 40-bit accumulator, and single-cycle multiply-accumulate. Seamless migration to PIC24 MCUs and dsPIC30F DSCs in similar packages is supported per the Microchip product page, protecting software investment.
Typical applications include brushless DC motor drives, single- and three-phase induction motor control, switched reluctance motors, digital power supplies, and industrial sensing systems. The motor-control PWM and ADC timing units make it especially fit for sensorless FOC.
Design consideration: multiple PGECx/PGEDx pin pairs exist for programming, and the pair used must be kept consistent; all VDD and VSS pins must be connected or programming may fail.
This page synthesizes distributor pricing, drop-in alternatives, pinout guidance, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ256MC710-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 DSPIC33FJ256MC710-I/PT (same form factor and footprint) — differing in Operating Temperature, Package, Core Architecture, ADC, Application Focus.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ256MC710A-I/PT
✅ Drop-In✓ In Stock
$7.8 / Unit
View Datasheet →DSPIC33FJ128MC710-I/PT
✅ Drop-In✓ In Stock
$6.9 / Unit
View Datasheet →DSPIC33FJ256GP510T-I/PT
✅ Drop-In✓ In Stock
$6.95 / Unit
View Datasheet →DSPIC33FJ256GP510-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.98 / Unit
View Datasheet →DSPIC33FJ256MC710-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC (MCU + DSP) |
| Maximum Execution Speed | 40 MIPS |
| Flash Memory | 256 KB |
| SRAM | 30 KB |
| Package | 100-TQFP (12x12 mm) |
| Operating Temperature | -40C to +85C (Industrial, -I suffix) |
| Supply Voltage | 2.5 V to 3.6 V |
| Packaging | Tray |
| Mounting Type | Surface Mount |
| Pin Count | 100 |
| Programming Interfaces | Multiple PGECx/PGEDx ICSP pairs |
| Migration Path | Compatible with PIC24 MCU and dsPIC30F DSC families |
| Application Focus | Motor control (BLDC, induction, switched reluctance) |
DSPIC33FJ256MC710-I/PT 100-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ256MC710-I/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 DSPIC33FJ256MC710-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ256MC710-I/PT is suitable for 6 applications: Brushless DC Motor Control, Single and Three-Phase Induction Motor Drives, Switched Reluctance Motor (SRM) Drives, Digital Power Supplies and Converters, Industrial Automation and Sensing Nodes, Embedded Motion and Robotics.
Brushless DC Motor Control
The DSPIC33FJ256MC710-I/PT is purpose-built for BLDC drives: its 40 MIPS DSP core executes field-oriented control (FOC) current loops fast enough for typical PWM frequencies of 10-20 kHz, while dedicated motor-control PWM peripherals generate complementary outputs with dead-time insertion. The dual ADC architecture supports simultaneous phase-current sampling so that current readings align with PWM center points, reducing measurement noise in sensorless back-EMF and FOC schemes. In practice the device sits between gate-driver ICs and the DC bus, reading hall or resolver feedback and driving the inverter bridge. The 256 KB Flash leaves headroom for FOC compensators, commutation tables, a bootloader, and communication stacks on a single chip, avoiding external memory.
Recommended
Single and Three-Phase Induction Motor Drives
For induction motor applications, the DSPIC33FJ256MC710-I/PT provides the mathematical throughput - single-cycle 17x17 MAC, 40-bit accumulator - needed for rotor-flux-estimation algorithms and slip compensation running at kilohertz loop rates. Microchip explicitly lists single and 3-phase induction motors among the applications supported by the MC710A family, and the same peripheral set carries over to the MC710. The ECAN module lets the drive report status on industrial CAN networks, while the DSP engine handles transforms (Clarke/Park) without external co-processors. Designers typically pair the DSC with an isolated gate driver and current-sense amplifier front end; the 2.5-3.6 V I/O levels interface cleanly with 3.3 V logic isolators.
Recommended
Switched Reluctance Motor (SRM) Drives
Switched reluctance drives require precise phase-angle switching and asymmetric PWM control, which the motor-control PWM modules of the DSPIC33FJ256MC710-I/PT handle through independent duty and phase control per channel. Per Microchip's family overview, SRM is a first-class supported application for this device. The 40 MIPS core computes torque-sharing functions and rotor-position estimators in real time, and the 256 KB Flash accommodates positionless control schemes that rely on flux-linkage tables. Because SRM drives demand rapid phase de-energization, the PWM fault inputs allow hardware-level shutdown independent of software latency, improving robustness under fault conditions such as phase short or overcurrent events.
Recommended
Digital Power Supplies and Converters
High-frequency digital power control benefits from the DSPIC33FJ256MC710-I/PT's DSP engine and ADC timing units: the ADC can be triggered by the PWM module so that voltage and current samples land at consistent points within each switching cycle, which is essential for stable average-current-mode control of buck, boost, or PFC stages. The 40 MIPS throughput sustains control-loop rates in the tens of kilohertz with proportional-integral compensation plus nonlinear limiter logic in firmware. The 256 KB Flash supports multiple converter profiles, telemetry via ECAN or UART, and field firmware updates through self-programmable memory - a common requirement in telecom rectifiers and solar micro-inverter control boards.
Recommended
Industrial Automation and Sensing Nodes
Beyond motors, the DSPIC33FJ256MC710-I/PT serves as a high-integration industrial node: the ECAN module connects to factory CAN buses, UART/SPI/I2C links handle sensors and HMIs, and the DMA controller moves ADC data without CPU intervention, keeping deterministic headroom for control tasks. The -40C to +85C industrial temperature rating covers unconditioned factory floors and outdoor enclosures. The 100-pin TQFP exposes enough I/O for parallel interfacing to displays, keypads, and expansion boards, while the 256 KB Flash hosts protocol stacks and data logging. Seamless migration options to PIC24 MCUs and dsPIC30F DSCs let designers scale the platform up or down without redrawing the PCB.
Recommended
Embedded Motion and Robotics
Multi-axis motion platforms - gantries, robot joints, gimbal stabilizers - use the DSPIC33FJ256MC710-I/PT to run per-axis FOC loops plus trajectory interpolation on one chip. The 40-bit DSP accumulator and single-cycle MAC keep the coordinate transforms and velocity profiles within the 40 MIPS budget, while hardware quadrature-encoder interface inputs read position feedback with zero CPU overhead. The ECAN bus integrates the joint controller into a distributed robot backbone, and the 256 KB Flash retains motion tables, kinematics, and safety monitoring code in place. Development starts on the Explorer 16 board with the MA330013 PIM, shortening time from algorithm to motor-connected prototype.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ256MC710-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ256MC710A-I/PT | DSPIC33FJ128MC710-I/PT | DSPIC33FJ256GP510T-I/PT |
|---|---|---|---|---|
| Package | 100-TQFP (12x12 mm) | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB | 256 KB | 128 KB | 256 KB |
| Execution Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Peripheral Focus | Motor control (MC family) | Motor control (MC family) | Motor control (MC family) | General purpose (GP family) |
| Operating Temperature | -40C to +85C | -40C to +85C (-I) | -40C to +85C (-I) | -40C to +85C (-I) |
| Lifecycle Status | Active | Active | Active | Active |
Key Differentiators
- Full 256 KB Flash for complex firmware (vs DSPIC33FJ128MC710-I/PT)
- Motor-control peripheral set (vs DSPIC33FJ256GP510T-I/PT)
- Updated silicon availability (vs DSPIC33FJ256MC710A-I/PT)
Design Notes
Connect ALL VDD and VSS pins of the 100-pin TQFP. Per Microchip's programming guidance, even one unconnected supply pin can cause ICSP programming failure even though the core seems powered. Decouple each VDD/VSS pair with 0.1 uF ceramic capacitors placed within 2 mm of the pins, plus a bulk 10 uF capacitor near the device. On the 12x12 mm TQFP, use at least a two-layer board with dedicated ground pour to minimize supply bounce during simultaneous PWM switching events.
The dsPIC33FJ256MC710 has multiple PGECx/PGEDx programming pin pairs. Per Microchip documentation, you may use any pair but must use it consistently as a pair: if PGEC2 carries ICSPCLK then PGED2 must carry ICSPDAT. Fix the pair in hardware and silk-screen it on the PCB, because mixing pairs across design revisions is a common cause of field-programming failures. Route the chosen pair away from high dv/dt motor-phase traces to avoid corrupting in-circuit debug sessions.
When driving a three-phase inverter, keep the motor-control PWM outputs short and route them away from the ADC sense lines. The dual ADC supports simultaneous sampling aligned to PWM center via the ADC trigger from the PWM module - configure this trigger rather than free-running sampling to avoid switching-noise aliasing into current feedback. Estimated: sampling at PWM center (valley for center-aligned PWM) typically halves measured current ripple versus arbitrary sampling in a 20 kHz FOC loop.
Compliance Information
RoHS/REACH/lead-free declarations were not present in the retrieved verified data; confirm via Microchip's official environmental compliance documentation. Industrial temperature grade (-I: -40C to +85C); not an AEC-Q100 automotive part.
