DSPIC33FJ256MC710T-I/PF - 16-bit 40MIPS DSC 256KB Flash | Microchip
MPN: DSPIC33FJ256MC710T-I/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.2 | $8.20 |
| 10 | $7.45 | $74.50 |
| 100 | $6.6 | $660.00 |
| 500 | $6.05 | $3,025.00 |
| 1,000 | $5.55 | $5,550.00 |
DSPIC33FJ256MC710T-I/PF Overview
A Digital Signal Controller combines the control peripherals of a microcontroller with the DSP engine of a digital signal processor. In the embedded systems hierarchy, the dsPIC33F family sits between general-purpose MCUs and dedicated DSPs, providing deterministic C compiler-friendly operation, hardware multiply-accumulate, and motor-control peripherals in a single chip.
Key features of the DSPIC33FJ256MC710T-I/PF include the dsPIC33FJ core running at 40 MIPS, 85 general-purpose I/O pins, a 24-channel analog-to-digital converter supporting both 10-bit and 12-bit modes, and the motor-control PWM peripherals that define the dsPIC33F MC family. The -40C to +85C industrial temperature rating and 3.0 V to 3.6 V single-supply operation suit factory and field environments.
The dsPIC33FJ architecture integrates a 16-bit modified Harvard core with DSP instruction extensions, including a 40-bit wide accumulator, barrel shifter, and single-cycle multiply-accumulate, enabling fixed-point control loops and filtering while retaining interrupt-driven microcontroller behavior. According to Microchip, the dsPIC33F Motor Control products offer seamless migration options to PIC24 MCUs and dsPIC30F DSCs in similar packages, protecting software investment.
Typical applications include brushless DC, single/three-phase induction and switched reluctance motor drives, digital power supplies, and industrial automation nodes where deterministic PWM plus ADC coordination is required.
A key design consideration: Microchip notes this device has low flash endurance (guaranteed only 100 erase/write cycles), so avoid excessive self-programming wear during development. ICSP programming/debug via PGC/PGD pairs uses the Explorer 16 Development Board with the MA330013 PIM.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ256MC710T-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 DSPIC33FJ256MC710T-I/PF (same form factor and footprint) — differing in Package, Operating Temperature, Supply Voltage, ADC, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ256MC710A-I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ128MC710T-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.8 / Unit
View Datasheet →DSPIC33FJ64MC710T-I/PF
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ256GP510T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.95 / Unit
View Datasheet →DSPIC33FJ128GP710T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.9 / Unit
View Datasheet →DSPIC33FJ256MC710T-I/PF Maximum Ratings & Electrical Characteristics
| Core | dsPIC33FJ 16-bit DSC core |
| Maximum Speed | 40 MIPS (40 MHz) |
| Program Memory | 256 KB (256K x 8) Flash |
| Data RAM | 30 KB (30720 bytes) |
| Supply Voltage | 3 V to 3.6 V |
| I/O Pins | 85 |
| ADC | 24-channel, 10-bit / 12-bit |
| Package | 100-TQFP (14x14 mm) |
| Operating Temperature | -40C to +85C |
| Mounting Style | SMD/SMT |
| Product Family | dsPIC33F Motor Control (dsPIC33FJ256MC710) |
| Architecture | 16-bit modified Harvard with DSP engine (barrel shifter, MAC) |
| Programming Interface | ICSP (PGC/PGD), supported by NSDSP programmers |
| Flash Endurance | 100 erase/write cycles minimum (per datasheet guarantee) |
| Migration Path | Seamless migration to PIC24 MCUs and dsPIC30F DSCs in similar packages |
| Packaging Option (this MPN) | T (Tape and Reel) |
DSPIC33FJ256MC710T-I/PF 100-tqfp (14x14 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ256MC710T-I/PF (100-tqfp (14x14 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 DSPIC33FJ256MC710T-I/PF.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ256MC710T-I/PF is suitable for 6 applications: Brushless DC (BLDC) Motor Drives, Three-Phase Induction Motor Control, Switched Reluctance Motor (SRM) Drives, Digital Power Supplies and Inverters, Industrial Sensing and Automation Nodes, Embedded System Development and Education.
Brushless DC (BLDC) Motor Drives
The DSPIC33FJ256MC710T-I/PF fits BLDC drives because its 40 MIPS DSP engine closes current loops at switching-relevant rates while the motor-control PWM generates six-channel complementary drive and the 24-channel 10/12-bit ADC samples phase currents and bus voltage synchronously. In a typical sensorless or sensored design, the DSC sits between the gate-driver front end and the CAN or RS-485 link, executing commutation, FOC, and protection logic in one device. Because PWM can trigger ADC conversions away from switching edges, current measurements stay clean, and the 30 KB RAM supports field-oriented control plus a communication stack without external memory.
Recommended
Three-Phase Induction Motor Control
Microchip explicitly lists single-phase and three-phase induction motors among the applications supported by the dsPIC33FJ256MC710A family, the same silicon as this part. Induction drives benefit from the 40 MIPS core's single-cycle MAC for Park/Clarke transforms, V/f or rotor-flux-oriented control, and slip compensation executed in firmware. The 85 I/O pins accommodate speed encoders, contactor control, and fault inputs, while the industrial -40C to +85C rating covers pump, fan, and compressor environments. The 256 KB Flash leaves room for a communication protocol stack plus a bootloader for field firmware updates over the network interface.
Recommended
Switched Reluctance Motor (SRM) Drives
Switched reluctance drives demand precise phase-current chopping and rotor-position-timed excitation, which the DSPIC33FJ256MC710T-I/PF provides via its high-speed PWM and fast 10/12-bit ADC sampling. The 40 MIPS execution rate allows per-phase hysteresis or current-profile control with minimal latency, and the high-speed comparators referenced in Microchip's dsPIC33F MC description provide hardware-level overcurrent response independent of software. The 30 KB RAM holds phase maps and demagnetization logic, and the industrial temperature range suits traction-adjacent and appliance environments. A PIM-based Explorer 16 setup allows control algorithm development before hardware commitment.
Recommended
Digital Power Supplies and Inverters
Digital power converters use the DSPIC33FJ256MC710T-I/PF as a fully digital control loop: the ADC measures output voltage and current at up to 12-bit resolution, the 40 MIPS core executes compensator equations including nonlinear limits, and the motor-control PWM hardware generates phase-shifted or complementary drive with dead time. The DSP MAC accelerates notch and feedforward filtering, and 85 I/O pins handle sequencing, housekeeping, and PMBus-style telemetry. The 256 KB Flash supports multiple converter profiles plus a field-updatable bootloader, which is valuable for platform designs sharing one PCB across power ratings and input ranges.
Recommended
Industrial Sensing and Automation Nodes
Beyond motor control, the 24-channel 10/12-bit ADC makes this DSC a strong sensing node: multiple analog sensors (pressure, current, temperature via external conditioning) are digitized on one chip while the 40 MIPS core performs DSP filtering such as IIR notch or FFT-based analysis on the DSP engine. The 85 I/O pins drive relays, indicators, and local HMI, and 30 KB RAM buffers data for upload. Because Microchip provides seamless migration to PIC24 MCUs and dsPIC30F DSCs in similar packages, designs can move between sensing and control variants without changing the board footprint or toolchain.
Recommended
Embedded System Development and Education
The DSPIC33FJ256MC710T-I/PF is a practical teaching and prototyping platform: Microchip's MA330013 PIM plus the Explorer 16 Development Board provides a ready 100-pin evaluation environment, and third-party programmers such as NSDSP-1, NSDSP-2, and NSDSP-3 support programming and debugging per northernsoftware.com. The ICSP interface keeps hardware cost minimal, and the 16-bit architecture demonstrates DSP concepts (MAC, barrel shifting) alongside standard MCU topics. Note the 100-cycle flash endurance guarantee: for classroom use with frequent reprogramming, manage flash wear and consider the tray-packaged non-T part for hand-inserted PIM-style use.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ256MC710T-I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ256MC710A-I/PF | DSPIC33FJ128MC710T-I/PF | DSPIC33FJ64MC710T-I/PF | DSPIC33FJ256GP510T-I/PT | DSPIC33FJ128GP710T-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TQFP (14x14 mm) | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same footprint | 100-TQFP (14x14 mm) - same footprint |
| Core Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Flash Memory | 256 KB | 256 KB | 128 KB | 64 KB | 256 KB | 128 KB |
| RAM | 30 KB | 30 KB | 30 KB | 30 KB | 30 KB | 30 KB |
| Peripheral Family | MC (motor control) | MC (motor control) | MC (motor control) | MC (motor control) | GP (general purpose) | GP (general purpose) |
| Temperature Range | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Motor-control specific peripheral set (vs DSPIC33FJ256GP510T-I/PT)
- Maximum memory in the pin-compatible MC710 family (vs DSPIC33FJ128MC710T-I/PF)
- Current silicon with cost headroom via family scaling (vs DSPIC33FJ64MC710T-I/PF)
Design Notes
Flash endurance is a real constraint on this device: northernsoftware.com warns that the datasheet guarantees only 100 erase/write cycles and that it is easy to wear the flash out during development. Disable automatic reconfiguration-word rewrites, batch EEPROM-style self-programming writes into pages, and keep a bootloader that erases only affected pages. During bench bring-up, log cumulative erase counts; a few days of aggressive reprogramming on a prototype can consume the entire guaranteed endurance budget.
Supply the dsPIC33FJ256MC710T-I/PF from a regulated 3.0 V to 3.6 V rail (typically 3.3 V). Decouple each VDD pin pair with 100 nF ceramics placed within a few millimeters of the pins, plus bulk 4.7-10 uF near the package; the 40 MIPS core draws dynamic current spikes at clock edges that a distant bulk capacitor cannot cover. On analog pins, use AVDD/AVSS filtering per the family reference manual so the 10/12-bit ADC achieves its specified noise floor.
When driving motor-control PWM outputs to gate drivers, keep high-current gate-loop returns away from analog grounds feeding the ADC reference; dsPIC33F motor-control designs commonly star-ground the power stage and tie it to the DSC ground at one point. Route PGC/PGD ICSP traces to a 5-pin header on every production PCB even after development, since the 100-cycle flash endurance makes field reprogramming per Flash-page management essential rather than optional.
The 100-TQFP (14x14 mm, 0.5 mm pitch) footprint requires an accurate land pattern; verify against the Microchip package outline drawing in the family datasheet before releasing Gerbers. Adopt the footprint with the A-silicon and smaller-flash family variants (128MC710, 64MC710) in mind - keeping identical land patterns across memory options gives you a zero-layout-change BOM fallback during shortages, which for mature dsPIC33FJ parts is a meaningful supply-chain hedge.
Compliance Information
The /PF package suffix indicates lead-free plastic TQFP per digchip data; formal RoHS/REACH certificates for this exact MPN are not present in the verified data and must be obtained from Microchip compliance documentation.
