DSPIC33FJ64MC706-I/PT - 16-bit DSC 40 MIPS 64KB Flash | Microchip
MPN: DSPIC33FJ64MC706-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.2 | $5.20 |
| 10 | $4.7 | $47.00 |
| 100 | $4.2 | $420.00 |
| 500 | $3.65 | $1,825.00 |
| 1,000 | $3.15 | $3,150.00 |
DSPIC33FJ64MC706-I/PT Overview
A Digital Signal Controller blends the control peripherals and ease of use of a microcontroller with the mathematical throughput of a DSP into a single-chip solution. Within the power-management hierarchy, the DSC sits between general-purpose MCUs and dedicated DSPs, and Microchip's dsPIC33F family offers seamless migration options to PIC24 MCUs and dsPIC30F DSCs in similar packages.
Key features include the 16-bit dsPIC33F CPU core with DSP engine (barrel shifter, 40-bit accumulator, MAC instructions), 40 MIPS maximum core speed from an internal PLL, motor-control oriented peripherals, and multiple PWM outputs suitable for three-phase inverter control. Flash program memory supports in-circuit programming via PGECx/PGEDx pin pairs.
The device incorporates a multiple internal bus architecture that allows instruction fetch and data access in the same cycle, sustaining the 40 MIPS rating. The Motor Control PWM module and high-speed ADC sampling support field-oriented control and other advanced motor algorithms. Multiple PGECx/PGEDx debug channels simplify in-circuit emulation with standard Microchip tools.
Typical applications include three-phase motor drives (BLDC, PMSM, AC induction), digital power supplies and inverters, and industrial automation sensing and control nodes that require deterministic DSP-class math.
Design consideration: all VDD and VSS pins must be connected, and any single PGECx/PGEDx pair must be used together for ICSP programming - mixing pins from different pairs will cause programming to fail.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64MC706-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 DSPIC33FJ64MC706-I/PT (same form factor and footprint) — differing in Operating Temperature, Package, RoHS Status, DSP Engine, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64MC706AT-I/PT
✅ Drop-In✓ In Stock
$5.85 / Unit
View Datasheet →DSPIC33FJ64MC706-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64MC506-I/PT
✅ Drop-In✓ In Stock
$5.3 / Unit
View Datasheet →DSPIC33FJ64MC506A-I/PT
✅ Drop-In✓ In Stock
$7.58 / Unit
View Datasheet →DSPIC33FJ64MC706-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC706-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F |
| Maximum Clock Speed | 40 MIPS |
| Flash Program Memory | 64 KB (64K x 8) |
| Supply Voltage Range | 3 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 64-TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Product Series | dsPIC33FJ64MC (Motor Control DSC) |
| Programming Interface | ICSP via PGECx/PGEDx pairs |
| DSP Engine | Barrel shifter, MAC, multiple internal bus architecture |
| Migration Path | PIC24 MCU / dsPIC30F DSC, similar packages |
| RoHS Status | Compliant (per LCSC listing) |
| Packaging | Tray (standard part); Tape & Reel for T-suffix |
DSPIC33FJ64MC706-I/PT Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive voltage reference |
| Pin 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative voltage reference |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select 1 |
| Pin 5 | AN3/INDX/CN5/RB3 — Analog input 3 / QEI index input |
| Pin 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / QEI phase A / capture 7 |
| Pin 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / QEI phase B / capture 8 |
| Pin 8 | AN6/OCFA/RB6 — Analog input 6 / PWM fault A input |
| Pin 9 | AN7/RB7 — Analog input 7 |
| Pin 10 | AN8/RB8 — Analog input 8 |
| Pin 11 | AN9/RB9 — Analog input 9 |
| Pin 12 | AN10/RB10 — Analog input 10 |
| Pin 13 | AN11/RB11 — Analog input 11 |
| Pin 14 | PGD2/AN12/RB12 — Analog input 12 / ICSP data pair 2 |
| Pin 15 | PGC2/AN13/RB13 — Analog input 13 / ICSP clock pair 2 |
| Pin 16 | AVSS — Analog ground |
| Pin 17 | AVDD — Analog supply (3V-3.6V) |
| Pin 18 | PWM1L1/RE0 — Motor PWM1 low output 1 / port E bit 0 |
| Pin 19 | PWM1H1/RE1 — Motor PWM1 high output 1 / port E bit 1 |
| Pin 20 | PWM1L2/RE2 — Motor PWM1 low output 2 / port E bit 2 |
| Pin 21 | PWM1H2/RE3 — Motor PWM1 high output 2 / port E bit 3 |
| Pin 22 | PWM1L3/RE4 — Motor PWM1 low output 3 / port E bit 4 |
| Pin 23 | PWM1H3/RE5 — Motor PWM1 high output 3 / port E bit 5 |
| Pin 24 | FLTA/RE6 — PWM fault A input / port E bit 6 |
| Pin 25 | RE7 — General purpose I/O port E bit 7 |
| Pin 26 | VSS — Ground reference |
| Pin 27 | VDD — Power supply (3V-3.6V) |
| Pin 28 | TMS/RF3 — JTAG test mode select / port F bit 3 |
| Pin 29 | TCK/RF2 — JTAG test clock / port F bit 2 |
| Pin 30 | TDI/RF1 — JTAG test data in / port F bit 1 |
| Pin 31 | TDO/RF0 — JTAG test data out / port F bit 0 |
| Pin 32 | RF4 — General purpose I/O port F bit 4 |
| Pin 33 | RF5 — General purpose I/O port F bit 5 |
| Pin 34 | VSS — Ground reference |
| Pin 35 | VDD — Power supply (3V-3.6V) |
| Pin 36 | SOSCI/CN1/RC13 — Secondary oscillator input / port C bit 13 |
| Pin 37 | SOSCO/T1CK/CN0/RC14 — Secondary oscillator output / Timer1 clock |
| Pin 38 | OSC1/CLKI/RC12 — Primary oscillator input / external clock in |
| Pin 39 | OSC2/CLKO/RC15 — Primary oscillator output / clock out |
| Pin 40 | VDD — Power supply (3V-3.6V) |
| Pin 41 | VSS — Ground reference |
| Pin 42 | SDA1/RG3 — I2C1 data / port G bit 3 |
| Pin 43 | SCL1/RG2 — I2C1 clock / port G bit 2 |
| Pin 44 | INT0/RD0 — External interrupt 0 / port D bit 0 |
| Pin 45 | RD1 — General purpose I/O port D bit 1 |
| Pin 46 | RD2 — General purpose I/O port D bit 2 |
| Pin 47 | RD3 — General purpose I/O port D bit 3 |
| Pin 48 | RD4 — General purpose I/O port D bit 4 |
| Pin 49 | U1RX/SDO2/CN8/RD5 — UART1 receive / SPI2 data out / port D bit 5 |
| Pin 50 | U1TX/SDI2/CN9/RD6 — UART1 transmit / SPI2 data in / port D bit 6 |
| Pin 51 | U1RTS/SCK2/CN10/RD7 — UART1 RTS / SPI2 clock / port D bit 7 |
| Pin 52 | VSS — Ground reference |
| Pin 53 | VDD — Power supply (3V-3.6V) |
| Pin 54 | SDI1/RF7 — SPI1 data in / port F bit 7 |
| Pin 55 | SCK1/INT1/RF6 — SPI1 clock / external interrupt 1 |
| Pin 56 | SDO1/CN11/RF8 — SPI1 data out / port F bit 8 |
| Pin 57 | RF12 — General purpose I/O port F bit 12 |
| Pin 58 | RF13 — General purpose I/O port F bit 13 |
| Pin 59 | PGD1/EMUD1/RF13 — ICSP data pair 1 / emulation channel 1 |
| Pin 60 | PGC1/EMUC1 — ICSP clock pair 1 / emulation channel 1 |
| Pin 61 | SCL2/INT2/RG6 — I2C2 clock / external interrupt 2 |
| Pin 62 | SDA2/INT3/RG7 — I2C2 data / external interrupt 3 |
| Pin 63 | RG8 — General purpose I/O port G bit 8 |
| Pin 64 | RG9 — General purpose I/O port G bit 9 |
Typical Applications
DSPIC33FJ64MC706-I/PT is suitable for 6 applications: Three-Phase BLDC / PMSM Motor Drives, Digital Power Supplies and Inverters, Industrial Automation and Motion Control, Embedded Audio and Signal Processing, Renewable Energy Converters, Sensor Systems and Instrumentation.
Three-Phase BLDC / PMSM Motor Drives
The DSPIC33FJ64MC706-I/PT is purpose-built for digital motor control: its 40 MIPS 16-bit DSP core with hardware MAC executes field-oriented control (FOC) loop mathematics with deterministic cycle timing, while the dsPIC33F Motor Control family's PWM and ADC peripherals generate complementary three-phase drive waveforms with dead-time control. In a typical PMSM drive, the DSC samples phase currents synchronously with PWM edges, runs current-loop and speed-loop controllers, and outputs six gate signals to a MOSFET/IGBT inverter through a gate driver such as the IR2110. Operating at 3.3V with industrial -40C to +85C rating, the device suits factory automation, HVAC compressors and servo drives. The 64KB Flash accommodates full FOC firmware plus communication stacks with headroom.
Recommended
Digital Power Supplies and Inverters
Switching power converters benefit from the DSPIC33FJ64MC706-I/PT's fast, deterministic control: at 40 MIPS the core executes compensator equations and PWM duty updates within one switching period even at 100 kHz-plus operation. The dsPIC33F MC-series PWM module supports complementary outputs, programmable dead time, and ADC-trigger synchronization for peak-current-mode or average-current-mode control of LLC, totem-pole PFC, and solar micro-inverter stages. Because control is fully digital, gain scheduling and protection (over-current, over-voltage, brownout) are implemented in firmware without analog rework. The 3V to 3.6V supply matches standard 3.3V logic rails, and the 64-TQFP exposes enough I/O for housekeeping functions, telemetry and CAN/UART interfaces in compact power-supply boards.
Recommended
Industrial Automation and Motion Control
Factory automation nodes use the DSPIC33FJ64MC706-I/PT where MCU ease-of-use must meet DSP-class math. The 16-bit CPU with 40-bit accumulator handles PID loops, encoder quadrature decoding, and trajectory interpolation at 40 MIPS, while UART, SPI and I2C peripherals link to HMIs, sensors and PLC backplanes. The industrial -40C to +85C temperature rating and 3.3V single-rail operation simplify deployment on standard industrial control boards. With 64KB Flash and in-circuit field programming via any PGECx/PGEDx pair, firmware updates can be performed on installed equipment without desoldering. Multi-axis stepper/servo indexers, conveyor coordination, and robotic joint controllers are representative uses; the same-package dsPIC33FJ64MC506 family provides a second-source migration path within Microchip.
Recommended
Embedded Audio and Signal Processing
The dsPIC33F DSP engine - single-cycle MAC, barrel shifter, dual operand fetch via the multiple internal bus architecture - makes the DSPIC33FJ64MC706-I/PT effective for embedded signal processing such as active filters, audio effects and sensor-conditioning algorithms. At 40 MIPS the core sustains sample rates adequate for control-bandwidth audio processing and vibration/condition monitoring, with 64KB Flash storing coefficient tables and FFT routines. The 16-bit architecture is natively matched to 16-bit sample math, and hardware saturation on the 40-bit accumulator prevents overflow artifacts. Designs typically couple the DSC to a codec or precision ADC over SPI/DCI. For cost-sensitive industrial audio equipment, DSP sensing nodes, and acoustic analyzers, it delivers DSP throughput at MCU programming simplicity in a 3.3V, 64-TQFP footprint.
Recommended
Renewable Energy Converters
Solar charge controllers, wind MPPT converters and micro-inverters rely on the DSPIC33FJ64MC706-I/PT's combination of PWM resolution, ADC triggering and 40 MIPS control bandwidth to run maximum-power-point-tracking and grid-synchronization algorithms. MPPT routines execute continuously in the main loop while the DSP engine handles fast inner current loops; the motor-control PWM module's complementary outputs with dead-time insertion directly drive half-bridge power stages through gate drivers. Firmware-implemented anti-islanding and protection logic can be updated in the field via ICSP programming. The industrial temperature range (-40C to +85C) and RoHS-compliant 64-TQFP package suit outdoor enclosure electronics, and the 3.3V rail integrates cleanly with communication ICs for monitoring over RS-485 or CAN.
Recommended
Sensor Systems and Instrumentation
Measurement instruments and smart sensor heads exploit the DSPIC33FJ64MC706-I/PT's synchronized ADC sampling and DSP math to filter, demodulate and linearize raw sensor signals on-chip, eliminating external analog conditioning. At 40 MIPS, digital lock-in detection, RMS computation and calibration-curve interpolation run in real time, while SPI/I2C/UART links report results to host controllers. The 64-TQFP offers ample I/O for multiplexed sensor arrays, and 64KB Flash stores logging and self-test firmware. Because the device programs and debugs through any PGECx/PGEDx pair with standard Microchip tools, OEMs can maintain one code base across instrument variants. Typical builds include load-cell transmitters, ultrasonic flow sensors and laboratory front-ends requiring deterministic timing and industrial temperature range.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC706-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64MC706AT-I/PT | DSPIC33FJ64MC706-E/PT | DSPIC33FJ64MC506-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Core / Speed | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Silicon Revision | Original | A-revision (newer errata baseline) | Extended-temp flow of original | Original (A variant available) |
Key Differentiators
- Newer silicon baseline available as drop-in (vs DSPIC33FJ64MC706AT-I/PT)
- Extended temperature option (vs DSPIC33FJ64MC706-E/PT)
- DSC with DSP engine vs general-purpose MCU (vs PIC24FJ64GA006-I/PT)
Design Notes
Estimated: with 64 VDD/AVDD pins decoupled at 100nF each plus one bulk 4.7uF-10uF capacitor per rail group, supply ripple stays low during 40 MIPS switching activity. Place a 100nF ceramic directly at each VDD pin pair and keep the analog AVDD fed through an RC or ferrite filter from the digital 3.3V rail to preserve ADC accuracy. All VDD and VSS pins must be connected - Microchip explicitly warns that leaving any power pin unconnected can cause programming to fail.
The device offers multiple PGECx/PGEDx pairs for ICSP; route exactly one pair (e.g., PGEC1/PGED1) to a 5-pin programming header and keep it under 10 cm from the DSC. Do not mix clock and data from different pairs. Keep the primary oscillator (OSC1/OSC2) traces short and guard them with ground, and route motor-control PWM outputs away from the analog front end (AN0-AN13, AVDD/AVSS) to prevent switching noise coupling into ADC samples.
When migrating code from dsPIC30F or PIC24 parts, verify configuration words (oscillator source, PLL settings, watchdog) because the dsPIC33F configuration bits differ from dsPIC30F despite the advertised migration path. Also confirm silicon-revision errata: the -AT and -E variants carry different errata baselines than the original part, which can affect PWM and UART peripheral behavior in edge cases. Always re-verify MCLR pull-up (10k to VDD) and add ICSP-safe series resistors on PGC/PGD lines.
Compliance Information
RoHS compliant per LCSC product listing C184257. Industrial grade (-40C to +85C); no AEC-Q100 automotive qualification indicated in verified data.
