DSPIC33FJ256MC710A-I/PT - 16-bit 40MIPS Motor Control DSC | Microchip
MPN: DSPIC33FJ256MC710A-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.02 | $9.02 |
| 10 | $8.85 | $88.50 |
| 100 | $8.5 | $850.00 |
| 500 | $8.1 | $4,050.00 |
| 1,000 | $7.8 | $7,800.00 |
DSPIC33FJ256MC710A-I/PT Overview
A Digital Signal Controller combines the control peripherals of a microcontroller (MCU) with the multiply-accumulate computational throughput of a Digital Signal Processor (DSP) in a single chip. Within the power-management hierarchy, the dsPIC33F Motor Control family sits between general-purpose 16-bit MCUs and dedicated DSPs, offering deterministic real-time control loops for motors and power conversion. This seamless migration position lets designers move between PIC24 MCUs and dsPIC30F/33F DSCs in similar packages without redesign.
Key features include the 16-bit dsPIC33F CPU core with DSP engine, 256 KB of self-programmable flash and 30 KB SRAM, an 8-channel motor-control PWM module with dead-time generation, multiple UART, SPI and I2C serial ports, a CAN 2.0B controller, a 10-bit high-speed ADC, and industrial -40C to +85C operating range. The A-suffix family improves errata over the original dsPIC33FJ256MC710.
Architecturally, the modified Harvard 16-bit core executes most instructions in a single cycle, with X and Y data memories supporting dual-operand DSP addressing. The motor-control PWM provides complementary outputs with programmable dead time and fault inputs, while the DMA keeps ADC-to-PWM update loops deterministic.
Typical applications include brushless DC motor control, single- and three-phase induction motor drives, switched reluctance motors, UPS and inverter control, and universal motor control - precisely the markets Microchip targets with this family.
When designing, place a low-ESR capacitor on the VCAP/VDDCORE pin and follow the datasheet decoupling guidance; PGC/PGD programming pins should be kept short for in-circuit programming via ICSP.
This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ256MC710A-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 DSPIC33FJ256MC710A-I/PT (same form factor and footprint) — differing in Core Architecture, Package, Operating Temperature, ADC, Motor Control PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ256MC710A-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.65 / Unit
View Datasheet →DSPIC33FJ128MC710-I/PT
✅ Drop-In✓ In Stock
$6.9 / Unit
View Datasheet →DSPIC33FJ128MC710T-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.8 / Unit
View Datasheet →DSPIC33FJ256GP510T-I/PT
✅ Drop-In✓ In Stock
$6.95 / Unit
View Datasheet →DSPIC33FJ256MC710A-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33F 16-bit DSC |
| Maximum CPU Speed | 40 MIPS |
| Flash Memory | 256 KB |
| SRAM | 30 KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial, I grade) |
| Package | 100-pin TQFP (12 x 12 mm), PT suffix |
| Mounting Type | Surface Mount |
| CAN Controller | Yes (CAN 2.0B) |
| Motor Control PWM | 8-channel motor-control PWM with dead time |
| ADC | 10-bit high-speed ADC |
| Serial Interfaces | UART, SPI, I2C |
| Programming Interface | ICSP (2-wire PGEC/PGED) |
| Family Features | Motor Control and Advanced Analog |
| Application Focus | BLDC, induction motor, switched reluctance motor control |
| RoHS Status | Compliant |
DSPIC33FJ256MC710A-I/PT Pin Configuration
| Pin 1 | MCLR — Master clear reset (active low) / programming voltage input |
| Pin 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / ADC positive reference / change notification / port B |
| Pin 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / ADC negative reference / change notification / port B |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI1 slave select / port B |
| Pin 5 | AN3/INDX/CN5/RB3 — Analog input 3 / QEI index input / port B |
| Pin 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / QEI phase A / input capture 7 / port B |
| Pin 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / QEI phase B / input capture 8 / port B |
| Pin 8 | AN6/OCFA/RB6 — Analog input 6 / PWM fault A input / port B |
| Pin 9 | AN7/OCFB/RB7 — Analog input 7 / PWM fault B input / port B |
| Pin 10 | VSS — Ground reference |
| Pin 11 | VDD — Power supply (3.0 V - 3.6 V) |
| Pin 12 | AN8/RP15/RB8 — Analog input 8 / peripheral pin select RP15 / port B |
| Pin 13 | AN9/RP14/RB9 — Analog input 9 / PPS RP14 / port B |
| Pin 14 | AN10/RP13/RB10 — Analog input 10 / PPS RP13 / port B |
| Pin 15 | AN11/RP12/RB11 — Analog input 11 / PPS RP12 / port B |
| Pin 16 | VSS — Ground reference |
| Pin 17 | VDD — Power supply |
| Pin 18 | AN12/RP11/RB12 — Analog input 12 / PPS RP11 / port B |
| Pin 19 | AN13/RP10/RB13 — Analog input 13 / PPS RP10 / port B |
| Pin 20 | AN14/RP9/RB14 — Analog input 14 / PPS RP9 / port B |
| Pin 21 | AN15/RP8/RB15 — Analog input 15 / PPS RP8 / port B |
| Pin 22 | VCAP/VDDCORE — CPU core supply decoupling capacitor pin |
| Pin 23 | AVDD — Analog power supply |
| Pin 24 | AVSS — Analog ground |
| Pin 25 | TCK/RC1 — JTAG test clock / port C |
| Pin 26 | TDI/RC2 — JTAG test data input / port C |
| Pin 27 | TDO/RC3 — JTAG test data output / port C |
| Pin 28 | TMS/RC4 — JTAG test mode select / port C |
| Pin 29 | SOSC1/T1CK/CN0/RC12 — Secondary oscillator input / Timer1 clock / port C |
| Pin 30 | SOSC2/T5CK/CN1/RC13 — Secondary oscillator output / Timer5 clock / port C |
| Pin 31 | RD0/CN21/PMD0 — Port D / change notification / parallel master port data 0 |
| Pin 32 | RD1/CN20/PMD1 — Port D / PMP data 1 |
| Pin 33 | RD2/CN19/PMD2 — Port D / PMP data 2 |
| Pin 34 | RD3/CN18/PMD3 — Port D / PMP data 3 |
| Pin 35 | RD4/CN42/PMD4 — Port D / PMP data 4 |
| Pin 36 | RD5/CN41/PMD5 — Port D / PMP data 5 |
| Pin 37 | RD6/CN40/PMD6 — Port D / PMP data 6 |
| Pin 38 | RD7/CN39/PMD7 — Port D / PMP data 7 |
| Pin 39 | RF12/SDI2/RP89 — SPI2 data in / PPS RP89 / port F |
| Pin 40 | RF13/SDO2/RP78 — SPI2 data out / PPS RP78 / port F |
| Pin 41 | RF2/U1RX/SDI1/RP75 — UART1 receive / SPI1 data in / PPS RP75 |
| Pin 42 | RF3/U1TX/SDO1/RP76 — UART1 transmit / SPI1 data out / PPS RP76 |
| Pin 43 | RF4/U1CTS/SDA1/RP97 — UART1 clear-to-send / I2C1 data / PPS RP97 |
| Pin 44 | RF5/U1RTS/SCL1/RP98 — UART1 request-to-send / I2C1 clock / PPS RP98 |
| Pin 45 | RG0/CSDI/RP99 — Port G / SPI data in / PPS RP99 |
| Pin 46 | RG1/CSCK/RP100 — Port G / SPI clock / PPS RP100 |
| Pin 47 | RG3/CSDO/RP101 — Port G / SPI data out / PPS RP101 |
| Pin 48 | VDD — Power supply |
| Pin 49 | OSC1/CLKI/CN30/RA2 — Primary oscillator input / external clock in / port A |
| Pin 50 | OSC2/CLKO/CN31/RA3 — Primary oscillator output / clock out / port A |
| Pin 51 | RG2/U3RX/CN32/RP58 — UART3 receive / port G / PPS RP58 |
| Pin 52 | RG3/U3TX/CN33/RP59 — UART3 transmit / port G / PPS RP59 |
| Pin 53 | VSS — Ground reference |
| Pin 54 | RD8/RP70 — Port D / PPS RP70 |
| Pin 55 | RD9/RP71 — Port D / PPS RP71 |
| Pin 56 | RD10/RP72 — Port D / PPS RP72 |
| Pin 57 | RD11/RP73 — Port D / PPS RP73 |
| Pin 58 | RG6/U2TX/SCL2/RP17 — UART2 transmit / I2C2 clock / PPS RP17 |
| Pin 59 | RG7/U2RX/SDA2/RP18 — UART2 receive / I2C2 data / PPS RP18 |
| Pin 60 | RG8/U2RTS/SDI2/RP19 — UART2 RTS / SPI2 data in / PPS RP19 |
| Pin 61 | RG9/U2CTS/SDO2/RP26 — UART2 CTS / SPI2 data out / PPS RP26 |
| Pin 62 | VSS — Ground reference |
| Pin 63 | VDD — Power supply |
| Pin 64 | RF6/IC4/U4TX/RP53 — Input capture 4 / UART4 transmit / PPS RP53 |
| Pin 65 | RF7/IC3/U4RX/RP54 — Input capture 3 / UART4 receive / PPS RP54 |
| Pin 66 | RF8/OC4/RP55 — Output compare 4 / PPS RP55 |
| Pin 67 | RF1/OC5/RP56 — Output compare 5 / PPS RP56 |
| Pin 68 | RG7/CN20/RP60 — Port G / change notification / PPS RP60 |
| Pin 69 | RG8/CN21/RP61 — Port G / change notification / PPS RP61 |
| Pin 70 | RG9/CN22/RP62 — Port G / change notification / PPS RP62 |
| Pin 71 | VSS — Ground reference |
| Pin 72 | PWM1L — Motor control PWM 1 low-side output |
| Pin 73 | PWM1H — Motor control PWM 1 high-side output |
| Pin 74 | PWM2L — Motor control PWM 2 low-side output |
| Pin 75 | PWM2H — Motor control PWM 2 high-side output |
| Pin 76 | PWM3L — Motor control PWM 3 low-side output |
| Pin 77 | PWM3H — Motor control PWM 3 high-side output |
| Pin 78 | PWM4L — Motor control PWM 4 low-side output |
| Pin 79 | PWM4H — Motor control PWM 4 high-side output |
| Pin 80 | FLTA — PWM fault A input |
| Pin 81 | FLTB — PWM fault B input |
| Pin 82 | RE0/CN8/PMCS1 — Port E / change notification / PMP chip select 1 |
| Pin 83 | RE1/CN9/PMCS2 — Port E / PMP chip select 2 |
| Pin 84 | RE2/CN10/PMWR — Port E / PMP write strobe |
| Pin 85 | RE3/CN11/PMRD — Port E / PMP read strobe |
| Pin 86 | RE4/CN12/PMEN — Port E / PMP enable |
| Pin 87 | RE5/CN13 — Port E / change notification |
| Pin 88 | RE6/CN14 — Port E / change notification |
| Pin 89 | RE7/CN15 — Port E / change notification |
| Pin 90 | RA0/T2CK/CN1 — Port A / Timer2 clock / change notification |
| Pin 91 | RA1/T3CK/CN2 — Port A / Timer3 clock / change notification |
| Pin 92 | RA4/T4CK/CN3 — Port A / Timer4 clock / change notification |
| Pin 93 | RA9/VREF+/CN5 — Port A / ADC reference+ / change notification |
| Pin 94 | RA10/VREF-/CN6 — Port A / ADC reference- / change notification |
| Pin 95 | RB5/CN7/PMA0 — Port B / PMP address 0 |
| Pin 96 | RB6/CN8/PMA1 — Port B / PMP address 1 |
| Pin 97 | RB7/CN9/PMA2 — Port B / PMP address 2 |
| Pin 98 | RB8/CN10/PMA3 — Port B / PMP address 3 |
| Pin 99 | RB9/CN11/PMA4 — Port B / PMP address 4 |
| Pin 100 | RB10/CN12/PMA5 — Port B / PMP address 5 |
Typical Applications
DSPIC33FJ256MC710A-I/PT is suitable for 6 applications: Brushless DC Motor Control, Single- and Three-Phase Induction Motor Drives, Switched Reluctance Motor (SRM) Drives, UPS and Inverter Power Conversion, Universal Motor Control (Appliances), Industrial Automation and CAN Networking Nodes.
Brushless DC Motor Control
The DSPIC33FJ256MC710A-I/PT is purpose-built for BLDC drives: its 8-channel motor-control PWM generates three complementary half-bridge output pairs with programmable dead time and cycle-by-cycle current limiting via fault inputs. The 10-bit high-speed ADC samples phase currents synchronized to the PWM center, while the 40 MIPS DSP core executes field-oriented control (FOC) or trapezoidal commutation with deterministic timing. Typical firmware runs the current loop at 20-50 kHz using MAC instructions for PI and Clarke/Park transforms. DMA transfers ADC results without CPU overhead, and CAN 2.0B connects the drive to higher-level industrial networks.
Recommended
Single- and Three-Phase Induction Motor Drives
For AC induction motor control, the DSPIC33FJ256MC710A-I/PT supplies the V/f and sensorless vector-control algorithms typical of industrial drives. The motor-control PWM provides complementary outputs with dead-time insertion required by IGBT/MOSFET bridges, and the ADC captures DC-bus current and voltage for control feedback. The 40 MIPS core leaves ample margin for slip compensation and field weakening. According to Microchip, the family explicitly supports single- and three-phase induction motors, and the 256 KB flash accommodates full vector-control stacks plus communication protocols such as CAN 2.0B for building automation or pump/fan integration.
Recommended
Switched Reluctance Motor (SRM) Drives
SRM drives demand phase-by-phase torque control with accurate rotor position tracking, which the DSPIC33FJ256MC710A-I/PT handles with its quadrature encoder interface (QEA/QEB inputs), high-speed ADC, and independent PWM channel control. The 40 MIPS core processes position-estimation algorithms such as inductance-slope sensing in real time. Microchip lists switched reluctance motors as a supported application for this family. The 256 KB flash retains full control tables and compensation firmware, while the industrial -40C to +85C rating suits traction and industrial environments where SRMs are common.
Recommended
UPS and Inverter Power Conversion
The DSPIC33FJ256MC710A-I/PT serves as the digital controller in uninterruptible power supplies and DC-AC inverters. Its motor-control PWM module doubles as a general high-resolution inverter PWM generator with complementary outputs and dead time, while the ADC simultaneously samples output voltage, load current, and battery bus for closed-loop sine-wave regulation. The 40 MIPS DSP engine executes PR (proportional-resonant) controllers and harmonic compensation filters using MAC operations. CAN 2.0B and multiple UARTs support parallel-UPS communication, and the 256 KB flash stores firmware plus event logs for service diagnostics.
Recommended
Universal Motor Control (Appliances)
Microchip markets this family as well-suited for universal motor control in appliances such as washers, vacuums, and power tools. The DSPIC33FJ256MC710A-I/PT reads triac or MOSFET bridge feedback through the ADC, generates phase-angle or chopper PWM control, and processes zero-cross detection on input-capture channels. The 40 MIPS core supports sensorless speed estimation and acoustic-noise-reduction algorithms. Its 3.0V-3.6V operation and industrial temperature range survive appliance environments, while the 100-pin TQFP provides enough I/O for user interface, sensor, and communication peripherals on a single controller.
Recommended
Industrial Automation and CAN Networking Nodes
Beyond motors, the DSPIC33FJ256MC710A-I/PT is an effective industrial control node: the integrated CAN 2.0B controller plus UART, SPI, and I2C ports let one chip bridge sensors, actuators, and a factory network. The 256 KB flash hosts protocol stacks (CANopen-style layers) alongside application firmware, and 30 KB SRAM buffers communication and control data. The 100-pin TQFP supplies abundant general-purpose I/O with peripheral pin select for flexible routing. Deterministic 40 MIPS execution supports real-time I/O scanning, making the part suitable for distributed automation equipment and machine sub-controllers.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ256MC710A-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ256MC710A-E/PT | DSPIC33FJ128MC710-I/PT | DSPIC33FJ256GP510T-I/PT |
|---|---|---|---|---|
| Package | 100-pin TQFP (12 x 12 mm), PT suffix | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB | 256 KB | 128 KB | 256 KB |
| SRAM | 30 KB | 30 KB | 30 KB | 30 KB |
| Maximum CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Family / PWM Type | Motor Control (MC) - complementary motor-control PWM | Motor Control (MC) - same | Motor Control (MC) - same | General Purpose (GP) - standard PWM |
| Operating Temperature | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| CAN 2.0B | Yes | Yes | Yes | Yes |
Key Differentiators
- Motor-control complementary PWM with dead time (vs DSPIC33FJ256GP510T-I/PT)
- Double the flash at the same footprint (vs DSPIC33FJ128MC710-I/PT)
- Errata-resolved A-suffix silicon (vs DSPIC33FJ256MC710 (non-A))
Design Notes
The DSPIC33FJ256MC710A-I/PT requires a low-ESR decoupling capacitor on the VCAP/VDDCORE pin (pin 22) to stabilize the internal 1.8V core regulator - typically 10 uF electrolytic/tantalum with a small ceramic in parallel per the datasheet decoupling guidance. Supply the 3.3V rail within 3.0V-3.6V; keep AVDD/AVSS on a separate filtered analog supply or ferrite bead from digital VDD, since ADC accuracy on the 10-bit converter depends directly on AVDD ripple.
For motor-control layouts, route PWM1H/L through PWM4H/L outputs as short, matched pairs to the gate drivers and keep high-current inverter switching paths away from the 10-bit ADC analog inputs (AN0-AN15). Place PGEC/PGD programming pins on accessible test points or a 5-pin ICSP header; if these pins are shared with application circuitry, add series resistors so in-circuit programming via PICkit 3 / ICD 3 / REAL ICE remains reliable in assembled boards.
MCLR must be held low during power-up until VDD is stable - do not power it from a slow-rising rail without supervision. The primary oscillator (OSC1/OSC2) and PLL settings determine the 40 MIPS rate: an incorrect PLL configuration can lock the chip out of ICSP, so use the MPLAB config-bit settings recommended in Microchip's programming specifications. When migrating from the non-A dsPIC33FJ256MC710, review the A-suffix errata/datasheet differences before reusing old config-word values.
Compliance Information
RoHS compliance per Microchip standard product status; REACH and halogen-free status not stated in provided data.
